diff --git a/README.md b/README.md index 67af07d..990491e 100644 --- a/README.md +++ b/README.md @@ -443,6 +443,51 @@ fmt.Println(game.Position().Board().Draw()) */ ``` +### Move History + +Move History is a convenient API for accessing aligned positions, moves, and comments. Move +History is useful when trying to understand detailed information about a game. Below is an +example showing how to see which side castled first. + +```go +package main + +import ( + "fmt" + "os" + + "github.com/notnil/chess" +) + +func main() { + f, err := os.Open("fixtures/pgns/0001.pgn") + if err != nil { + panic(err) + } + defer f.Close() + pgn, err := chess.PGN(f) + if err != nil { + panic(err) + } + game := chess.NewGame(pgn) + color := chess.NoColor + for _, mh := range game.MoveHistory() { + if mh.Move.HasTag(chess.KingSideCastle) || mh.Move.HasTag(chess.QueenSideCastle) { + color = mh.PrePosition.Turn() + break + } + } + switch color { + case chess.White: + fmt.Println("white castled first") + case chess.Black: + fmt.Println("black castled first") + default: + fmt.Println("no side castled") + } +} +``` + ## Performance Chess has been performance tuned, using [pprof](https://golang.org/pkg/runtime/pprof/), with the goal of being fast enough for use by chess bots. The original map based board representation was replaced by [bitboards](https://chessprogramming.wikispaces.com/Bitboards) resulting in a large performance increase. diff --git a/bitboard_test.go b/bitboard_test.go index ecc486b..beb4aeb 100644 --- a/bitboard_test.go +++ b/bitboard_test.go @@ -9,15 +9,15 @@ type bitboardTestPair struct { var ( tests = []bitboardTestPair{ - bitboardTestPair{ + { uint64(1), uint64(9223372036854775808), }, - bitboardTestPair{ + { uint64(18446744073709551615), uint64(18446744073709551615), }, - bitboardTestPair{ + { uint64(0), uint64(0), }, diff --git a/fen.go b/fen.go index f0dd20c..f2b4e4a 100644 --- a/fen.go +++ b/fen.go @@ -123,16 +123,6 @@ func formEnPassant(enPassant string) (Square, error) { } var ( - fenSkipMap = map[int]string{ - 1: "1", - 2: "2", - 3: "3", - 4: "4", - 5: "5", - 6: "6", - 7: "7", - 8: "8", - } fenPieceMap = map[string]Piece{ "K": WhiteKing, "Q": WhiteQueen, diff --git a/game.go b/game.go index 696312b..67f7cd2 100644 --- a/game.go +++ b/game.go @@ -254,7 +254,7 @@ func (g *Game) UnmarshalText(text []byte) error { func (g *Game) Draw(method Method) error { switch method { case ThreefoldRepetition: - if g.numOfRepitions() < 3 { + if g.numOfRepetitions() < 3 { return errors.New("chess: draw by ThreefoldRepetition requires at least three repetitions of the current board state") } case FiftyMoveRule: @@ -287,7 +287,7 @@ func (g *Game) Resign(color Color) { // EligibleDraws returns valid inputs for the Draw() method. func (g *Game) EligibleDraws() []Method { draws := []Method{DrawOffer} - if g.numOfRepitions() >= 3 { + if g.numOfRepetitions() >= 3 { draws = append(draws, ThreefoldRepetition) } if g.pos.halfMoveClock >= 100 { @@ -336,6 +336,37 @@ func (g *Game) RemoveTagPair(k string) bool { return found } +// MoveHistory is a move's result from Game's MoveHistory method. +// It contains the move itself, any comments, and the pre and post +// positions. +type MoveHistory struct { + PrePosition *Position + PostPosition *Position + Move *Move + Comments []string +} + +// MoveHistory returns the moves in order along with the pre and post +// positions and any comments. +func (g *Game) MoveHistory() []*MoveHistory { + h := []*MoveHistory{} + for i, p := range g.positions { + if i == 0 { + continue + } + m := g.moves[i-1] + c := g.comments[i-1] + mh := &MoveHistory{ + PrePosition: g.positions[i-1], + PostPosition: p, + Move: m, + Comments: c, + } + h = append(h, mh) + } + return h +} + func (g *Game) updatePosition() { method := g.pos.Status() if method == Stalemate { @@ -353,7 +384,7 @@ func (g *Game) updatePosition() { } // five fold rep creates automatic draw - if !g.ignoreAutomaticDraws && g.numOfRepitions() >= 5 { + if !g.ignoreAutomaticDraws && g.numOfRepetitions() >= 5 { g.outcome = Draw g.method = FivefoldRepetition } @@ -393,7 +424,7 @@ func (g *Game) Clone() *Game { } } -func (g *Game) numOfRepitions() int { +func (g *Game) numOfRepetitions() int { count := 0 for _, pos := range g.Positions() { if g.pos.samePosition(pos) { diff --git a/game_test.go b/game_test.go index e0846d5..ec60e3e 100644 --- a/game_test.go +++ b/game_test.go @@ -39,7 +39,6 @@ func TestCheckmate(t *testing.T) { if g.Outcome() != WhiteWon { t.Fatalf("expected outcome %s but got %s", WhiteWon, g.Outcome()) } - } func TestCheckmateFromFen(t *testing.T) { @@ -92,7 +91,7 @@ func TestInvalidStalemate(t *testing.T) { } } -func TestThreeFoldRepition(t *testing.T) { +func TestThreeFoldRepetition(t *testing.T) { g := NewGame() moves := []string{ "Nf3", "Nf6", "Ng1", "Ng8", @@ -107,11 +106,11 @@ func TestThreeFoldRepition(t *testing.T) { for _, pos := range g.Positions() { log.Println(pos.String()) } - t.Fatalf("%s - %d reps", err.Error(), g.numOfRepitions()) + t.Fatalf("%s - %d reps", err.Error(), g.numOfRepetitions()) } } -func TestInvalidThreeFoldRepition(t *testing.T) { +func TestInvalidThreeFoldRepetition(t *testing.T) { g := NewGame() moves := []string{ "Nf3", "Nf6", "Ng1", "Ng8", @@ -126,7 +125,7 @@ func TestInvalidThreeFoldRepition(t *testing.T) { } } -func TestFiveFoldRepition(t *testing.T) { +func TestFiveFoldRepetition(t *testing.T) { g := NewGame() moves := []string{ "Nf3", "Nf6", "Ng1", "Ng8", @@ -171,7 +170,7 @@ func TestSeventyFiveMoveRule(t *testing.T) { } } -func TestInsufficentMaterial(t *testing.T) { +func TestInsufficientMaterial(t *testing.T) { fens := []string{ "8/2k5/8/8/8/3K4/8/8 w - - 1 1", "8/2k5/8/8/8/3K1N2/8/8 w - - 1 1", @@ -187,12 +186,12 @@ func TestInsufficentMaterial(t *testing.T) { g := NewGame(fen) if g.Outcome() != Draw || g.Method() != InsufficientMaterial { log.Println(g.Position().Board().Draw()) - t.Fatalf("%s should automatically draw by insufficent material", f) + t.Fatalf("%s should automatically draw by insufficient material", f) } } } -func TestSufficentMaterial(t *testing.T) { +func TestSufficientMaterial(t *testing.T) { fens := []string{ "8/2k5/8/8/8/3K1B2/4N3/8 w - - 1 1", "8/2k5/8/8/8/3KBB2/8/8 w - - 1 1", @@ -209,7 +208,7 @@ func TestSufficentMaterial(t *testing.T) { g := NewGame(fen) if g.Outcome() != NoOutcome { log.Println(g.Position().Board().Draw()) - t.Fatalf("%s should not find insufficent material", f) + t.Fatalf("%s should not find insufficient material", f) } } } @@ -266,6 +265,21 @@ func TestPositionHash(t *testing.T) { } } +func TestMoveHistory(t *testing.T) { + lens := []int{89, 89, 5, 26} + for i, test := range validPGNs[0:4] { + pgn, err := PGN(strings.NewReader(test.PGN)) + if err != nil { + t.Fatal(err) + } + game := NewGame(pgn) + l := len(game.MoveHistory()) + if lens[i] != l { + t.Fatalf("expected history length to be %d but got %d", lens[i], l) + } + } +} + func BenchmarkStalemateStatus(b *testing.B) { fenStr := "k1K5/8/8/8/8/8/8/1Q6 w - - 0 1" fen, err := FEN(fenStr) diff --git a/notation.go b/notation.go index 9205b4f..0e774c0 100644 --- a/notation.go +++ b/notation.go @@ -301,10 +301,3 @@ func pieceTypeFromChar(c string) PieceType { } return NoPieceType } - -func removeSubstrings(s string, subs ...string) string { - for _, sub := range subs { - s = strings.Replace(s, sub, "", -1) - } - return s -} diff --git a/opening/README.md b/opening/README.md index d1e565b..41582c8 100644 --- a/opening/README.md +++ b/opening/README.md @@ -1,6 +1,6 @@ # opening -**opening** provides interactivity to opening books such as [Encyclopaedia of Chess Openings](https://en.wikipedia.org/wiki/Encyclopaedia_of_Chess_Openings) (ECO) which is loadable from the package. +**opening** provides interactivity to opening books such as [Encyclopaedia of Chess Openings](https://en.wikipedia.org/wiki/Encyclopaedia_of_Chess_Openings) (ECO) which is loadable from the package. Source: https://github.com/lichess-org/chess-openings ## Visual diff --git a/opening/csv/openings_alg.csv b/opening/csv/openings_alg.csv deleted file mode 100644 index e49dcdb..0000000 --- a/opening/csv/openings_alg.csv +++ /dev/null @@ -1,2727 +0,0 @@ -Code,Name,PGN,,,, -A00,Anderssen's Opening,1.a3,,,, -A00,"Polish Gambit, Anderssen's Opening",1.a3 a5 2.b4,,,, -A00,Creepy Crawly Formation,1.a3 e5 2.h3 d5,,,, -A00,Andersspike,1.a3 g6 2.g4,,,, -A00,Ware; Meadow Hay; Crab,1.a4,,,, -A00,"Wing Gambit, Ware Opening",1.a4 b5,,,, -A00,"Cologne Gambit, Ware Opening",1.a4 b6 2.d4 d5 2.Nc3 Nd7,,,, -A00,Ware Gambit,1.a4 e5 2.a5 d5 3.e3 f5 4.a6,,,, -A00,Polish; Orangutan; Sokolsky; Hunt,1.b4,,,, -A00,"Birmingham Gambit, Polish",1.b4 c5,,,, -A00,"Outflank Variation, Polish",1.b4 c6���,,,, -A00,"Schuhler Gambit, Polish",1.b4 c6 2.Bb2 a5 3.b5 cxb5 4.e4,,,, -A00,"Myers Variation, Polish",1.b4 d5 2.Bb2 c6 3.a4,,,, -A00,"Bugayev Attack, Polish",1.b4 e5 2.a3,,,, -A00,"Wolferts Gambit, Polish",1.b4 e5 2.Bb2 c5,,,, -A00,Schiffler-Sokolsky; Tartakower Gambit,1.b4 e5 2.Bb2 f6 3.e4 Bxb4,,,, -A00,"Brinckmann Variation, Polish",1.b4 e5 2.Bb2 f6 3.e4 Bxb4 4.Bc4 Nc6 5.f4 Qe7 6.f5 g6,,,, -A00,"Bucker Defense, Polish",1.b4 Na6,,,, -A00,"Grigorian Variation, Polish",1.b4 Nc6,,,, -A00,Polish Spike,1.b4 Nf6 2.Bb2 g6 3.g4,,,, -A00,"Karniewski; Tubingen Variation, Polish",1.b4 Nh6,,,, -A00,Saragossa; Hempel's Opening,1.c3,,,, -A00,Hanham; Hayward,1.c3 e5 2.Qc2,,,, -A00,Mieses; Valencia; Venezuelan Opening,1.d3��,,,, -A00,Venezolana,1.d3 c5 2.Nc3 Nc6 3.g3,,,, -A00,Reversed Rat,1.d3 e5,,,, -A00,Spike Deferred; Myers Spike Attack,1.d3 g6 2.g4,,,, -A00,Keoni-Hiva Gambit,1.e3 d5 2.Nc3 Nf6 3.a3 e5 4.f4 exf4 5.Nf3,,,, -A00,Van't Kruijs Opening,1.e3 e5,,,, -A00,Bouncing Bishop Variation,1.e3 e5 2.Bc4 b5 3.Bb3,,,, -A00,Amsterdam Attack,1.e3 e5 2.c4 d6 3.Nc3 Nc6 4.b3 Nf6,,,, -A00,Ekolu Variation,1.e3 e5 2.Nc3 d5 3.f4 exf4 4.Nf3,,,, -A00,Alua Variation,1.e3 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3,,,, -A00,Akahi Variation,1.e3 e5 2.Nc3 Nf6 3.f4 exf4 4.Nf3,,,, -A00,Barnes; Gedult-Gunderam; Walkerling,1.f3��,,,, -A00,King's Head Opening,1.f3 e5 2.e4,,,, -A00,Hammerschlag; Pork Chop Opening,1.f3 e5 2.Kf2,,,, -A00,Benko; Barczay; Bilek; Hungarian,1.g3��,,,, -A00,Gambit 59,1.g3 d5 2.Bg2 e5 3.b4,,,, -A00,Regan Variation,1.g3 d5 2.Bg2 e5 3.d4,,,, -A00,Reversed Alekhine,1.g3 e5 2.Nf3,,,, -A00,Lasker Simul Special,1.g3 h5,,,, -A00,Grob; Ahlhausen; Colibri; Fric; Genoa; Spike,1.g4,,,, -A00,Grob Gambit,1.g4 d5 2.Bg2 Bxg4,,,, -A00,"Romford Counter-Gambit, Grob",1.g4 d5 2.Bg2 Bxg4 3.c4 d4,,,, -A00,"Spike, Grob",1.g4 d5 2.Bg2 c6 3.g5,,,, -A00,"Short Spike, Grob",1.g4 d5 2.Bg2 c6 3.h3,,,, -A00,"Zilbermints Gambit, Grob",1.g4 d5 2.e4,,,, -A00,"Keene Defense, Grob",1.g4 d5 2.h3 e5,,,, -A00,"Hurst Attack, Grob",1.g4 e5 2.Bg2 d5 3.c4,,,, -A00,"Alessi Gambit, Grob",1.g4 f5,,,, -A00,Double Grob,1.g4 g5,,,, -A00,Spike Deferred,1.g4 g6 2.d3,,,, -A00,"Bucker Defense, Grob",1.g4 Nh6,,,, -A00,Clemenz Opening,1.h3,,,, -A00,Kadas Opening,1.h4,,,, -A00,Despres Opening,1.h4,,,, -A00,Koola-Koola,1.h4 a5,,,, -A00,Wulumulu,1.h4 e5 2.d4,,,, -A00,Durkin's Opening; Sodium Attack,1.Na3,,,, -A00,Dunst; Heinrichsen; Will Bull; Kotrc,1.Nc3,,,, -A00,"St. George Defense, Dunst",1.Nc3 a6,,,, -A00,"Novosibirsk Variation, Dunst",1.Nc3 c5 2.d4 cxd4 3.Qxd4 Nc6 4.Qh4,,,, -A00,"Twyble Attack, Dunst",1.Nc3 c5 2.Rb1,,,, -A00,Dunst Gambit,1.Nc3 d5 2.e4 dxe4 3.d3,,,, -A00,"Pseudo-Diemer Gambit, Dunst",1.Nc3 d5 2.e4 dxe4 3.f3 exf3 4.Qxf3,,,, -A00,"Amazon, Dunst",1.Nc3 d5 2.e4 dxe4 3.Nxe4 Qd5,,,, -A00,Reversed Nimzovich,1.Nc3 e5���,,,, -A00,"Battambang, Dunst",1.Nc3 e5 2.a3,,,, -A00,Irish Attack; Polish Attack,1.Nc3 e5 2.f4,,,, -A00,"Napoleon Attack, Dunst",1.Nc3 e5 2.Nf3,,,, -A00,"Glasscoe Gambit, Dunst",1.Nc3 f5 2.g4,,,, -A00,"Anti-Pirc Variation, Dunst",1.Nc3 g6 2.h4,,,, -A00,"Tubingen Gambit, Dunst",1.Nc3 Nf6 2.g4,,,, -A00,Amar; Paris Opening,1.Nh3,,,, -A00,Drunken Knight Opening,1.Nh3,,,, -A00,Krazy Kat,1.Nh3 e5 2.f3 d5 3.Nf2,,,, -A01,Larsen; Queen's Fianchetto; Nimzo-Larsen Attack A01,1.b3,,,, -A01,"Symmetrical Variation, Larsen",1.b3 b6,,,, -A01,"English Variation, Larsen",1.b3 c5,,,, -A01,"Classical Variation, Larsen",1.b3 d5,,,, -A01,"Modern Variation, Larsen",1.b3 e5,,,, -A01,"Ringelbach Gambit, Larsen",1.b3 e5 2.Bb2 f5 3.e4,,,, -A01,"Paschmann Gambit, Larsen",1.b3 e5 2.Bb2 Nc6 3.f4,,,, -A01,"Dutch Variation, Larsen",1.b3 f5,,,, -A01,"Indian Variation, Larsen",1.b3 Nf6���,,,, -A01,"Spike Variation, Larsen",1.b3 Nf6 2.Bb2 g6 3.g4,,,, -A02,�Bird's Opening; Dutch Attack,1.f4,,,, -A02,"From's Gambit, Bird",1.f4 e5,,,, -A02,Canard Formation; Double Duck,1.f4 f5 2.d4 d5,,,, -A02,"Pawn Thrust Attack, Bird",1.f4 f5 2.d4 d5,,,, -A02,"Swiss Gambit, Bird",1.f4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4,,,, -A02,"Hobbs Gambit, Bird",1.f4 g5,,,, -A02,"Batavo Polish Attack, Bird",1.f4 Nf6 2.Nf3 g6 3.b4,,,, -A03,A03,1.f4 d5,,,, -A03,Sturm; Mujannah�,1.f4 d5 2.c4,,,, -A03,"Prokofiev Gambit, Bird",1.f4 d5 2.e4 dxe4 3.d3,,,, -A03,"Williams Gambit, Bird",1.f4 d5 2.e4 dxe4 3.Nc3,,,, -A03,"Horsefly Defense, Bird",1.f4 Nh6,,,, -A04,Reti; Zukertort; A04,1.Nf3��,,,, -A04,Wade Defense,1.Nf3 d6,,,, -A04,Lisitsin Gambit; Polish Gambit,1.Nf3 f5 2.e4��,,,, -A04,Rydel-Bloodgood Gambit,1.Nf3 f5 2.e4 exf4 3.Ne5,,,, -A04,Polish G; Dalesio G; Pirc-Lisitsin G,1.Nf3 f5 2.e4 fxe4 3.Ng5,,,, -A04,"Herrstrom Gambit, Reti",1.Nf3 g5,,,, -A04,Oberndorfer Gambit; Reti,1.Nf3 g5,,,, -A04,Lessing Defense,1.Nf3 Nc6,,,, -A05,King's Indian Attack; Reti; Zukertort; A05,1.Nf3 Nf6,,,, -A06,A06,1.Nf3 d5,,,, -A06,"Nimzovich Opening, Reti",1.Nf3 d5 2.b3,,,, -A06,"Bloodgood Gambit, Reti",1.Nf3 d5 2.b3 c5 3.e4 dxe4 4.Ne5,,,, -A06,"Santasiere's Folly, Reti",1.Nf3 d5 2.b4,,,, -A06,Old Indian Attack,1.Nf3 d5 2.d3,,,, -A06,Tennison G; Lemberg G; Abonyi G,1.Nf3 d5 2.e4,,,, -A06,"Reversed Mexican Defense, Reti",1.Nf3 d5 2.Nc3,,,, -A06,"Ampel Variation, Reti",1.Nf3 d5 2.Rg1,,,, -A06,"Improved Lisitsin G, Reti",1.Nf3 f5 2.d3,,,, -A07,"Barcza Opening, Reti; A07",1.Nf3 d5 2.g3,,,, -A08,A08,1.Nf3 d5 2.g3 c5,,,, -A09,Reti; Landstrasser G; Wolf G; A09,1.Nf3 d5 2.c4��,,,, -A09,"London V; New York V, Reti",1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.Bg2 e6 5.Bb2 Nbd7,,,, -A09,Benoni Reversed; Wing Blumenfeld,1.Nf3 d5 2.c4 d4��,,,, -A09,Reti Polonaise,1.Nf3 d5 2.c4 d4 3.b4,,,, -A09,"Penguin Variation, Reti",1.Nf3 d5 2.c4 d4 3.Rg1,,,, -A09,Reti Gambit Accepted,1.Nf3 d5 2.c4 dxc4,,,, -A09,"Neo-Catalan, Reti",1.Nf3 d5 2.c4 e6 3.g3,,,, -A10,English Opening; A10,1.c4,,,, -A10,"Halibut Gambit, English",1.c4 b5,,,, -A10,"Anglo Scandanavian Defense, English",1.c4 d5,,,, -A10,"Loehn Gambit, English",1.c4 d5 2.cxd5 e6,,,, -A10,"Schulz Gambit, English",1.c4 d5 2.cxd5 Nf6,,,, -A10,"Malvinas Variation, English",1.c4 d5 2.cxd5 Qxd5 3.Nc3 Qa5,,,, -A10,Anglo-Dutch Defense,1.c4 f5,,,, -A10,Anglo-Polish Dutch,1.c4 f5 2.b4,,,, -A10,"Hickmann Gambit, English",1.c4 f5 2.e4,,,, -A10,"Hickmann Gambit, English",1.c4 f5 2.e4 fxe4 3.d3,,,, -A10,"Porcupine Variation, English",1.c4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4,,,, -A10,"Wade Gambit, English",1.c4 f5 2.g4,,,, -A10,English Spike,1.c4 f5 2.g4,,,, -A10,"Chabanon Gambit, English",1.c4 f5 2.Nf3 d6 3.e4,,,, -A10,"Myers Defense, English",1.c4 g5 2.d4 Bg7,,,, -A10,"Zilbermints Gambit, English",1.c4 g5 2.d4 e5,,,, -A10,"Great Snake, English",1.c4 g6��,,,, -A10,"Adorjan System, English",1.c4 g6 2.e4 e5,,,, -A10,Beefeater,1.c4 g6 2.Nc3 Bg7 3.d4 c5 4.d5 Bxc3 5.bxc3 f5,,,, -A10,"Anglo-Lithuanian Variation, English",1.c4 Nc6,,,, -A11,"Anglo-Slav, English; A11",1.c4 c6,,,, -A12,A12,1.c4 c6 2.Nf3 d5 3.b3,,,, -A12,"Bled Variation, English",1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 g6,,,, -A13,"Agincourt; Kurajica Defense, English; A13",1.c4 e6,,,, -A13,English Defense,1.c4 e6 2.d4 b6,,,, -A13,"King's Knight Variation, English",1.c4 e6 2.Nf3 d5,,,, -A13,"Wimpy System, English",1.c4 e6 2.Nf3 d5 3.b3 Nf6 4.Bb2 c5 e3,,,, -A13,"Afincourt Variation, English",1.c4 e6 2.Nf3 d5 3.g3,,,, -A13,"Kurajica Defense, English",1.c4 e6 2.Nf3 d5 3.g3 c6,,,, -A13,"Neo Catalan, English",1.c4 e6 2.Nf3 d5 3.g3 Nf6,,,, -A13,"Neo Catalan Accepted, English",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4,,,, -A13,"Romanishin Gambit, English",1.c4 e6 2.Nf3 Nf6 3.g3 a6 4.Bg2 b5,,,, -A14,A14,1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7,,,, -A14,"Neo Catalan Declined, English",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O,,,, -A14,"Keres Defense, English",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O c5 6.cxd5 Nxd5 7.Nc3 Nc6,,,, -A15,"Anglo System, English; A15",1.c4 Nf6,,,, -A15,"Mikenas-Carls Variation, English",1.c4 Nf6,,,, -A15,English Orangutan,1.c4 Nf6 2.b4,,,, -A15,Shirazi Shove,1.c4 Nf6 2.g3 h5,,,, -A15,"King's Knight Variation, English",1.c4 Nf6 2.Nf3,,,, -A15,"Romanishin Variation, English",1.c4 Nf6 2.Nf3 e6 3.g3 a6,,,, -A16,A16,1.c4 Nf6 2.Nc3,,,, -A16,"Golombek Defense, English; Anti English",1.c4 Nf6 2.Nc3 d5,,,, -A16,"Czech Variation, English",1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nb6,,,, -A16,"Korchnoi's Variation, English",1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.Nf3 g6 5.g3 Bg7 6.Bg2 e5,,,, -A16,"Stein Attack, English",1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.Nf3 g6 5.Qa4+,,,, -A16,Anti-anti-grunfeld,1.c4 Nf6 2.Nc3 g6 3.Nf3 Bg7 4.e4,,,, -A17,"Smyslov Defense, English",1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3,,,, -A17,"Hegehog System, Anglo-Indian English; A17",1.c4 Nf6 2.Nc3 e6,,,, -A17,Nimzo-English Opening,1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4,,,, -A17,"Zviagintsev-Krasenkov Attack, English",1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.g4,,,, -A18,"Flohr-Mikenas-Carls Variation, English; A18",1.c4 Nf6 2.Nc3 e6 3.e4,,,, -A18,"Kevitz Defense, English",1.c4 Nf6 2.Nc3 e6 3.e4 Nc6,,,, -A18,"Queen's Indian Formation, English",1.c4 Nf6 2.Nc3 e6 3.Nf3 b6,,,, -A19,"Floh-Mikenas-Carls Variation, English; A19",1.c4 Nf6 2.Nc3 e6 3.e4 c5,,,, -A19,"Nei Gambit, English",1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8,,,, -A20,King's English; A20,1.c4 e5��,,,, -A20,"Kahiko-Hula Gambit, English",1.c4 e5 2.e3 Nf6 4.f4 exf4 4.Nf3,,,, -A20,"Double Whammy, English",1.c4 e5 2.f4,,,, -A20,"Drill Variation, English",1.c4 e5 2.g3 h5,,,, -A20,"Nimzovich Variation, English",1.c4 e5 2.Nf3,,,, -A20,"Nimzovich-Flohr Variation, English",1.c4 e5 2.Nf3 e4,,,, -A20,English Queen,1.c4 e5 2.Qa4,,,, -A21,"Reversed Sicilian, English; A21",1.c4 e5 2.Nc3,,,, -A21,"Kramnik-Shirov Variation, English",1.c4 e5 2.Nc3 Bb4,,,, -A21,"Troger Variation, English",1.c4 e5 2.Nc3 d6 3.g3 Be6 4.Bg2 Nc6,,,, -A21,"Keres Defense, English",1.c4 e5 2.Nc3 d6 3.g3 c6,,,, -A21,"General Variation, King's English",1.c4 e5 2.Nc3 d6 3.Nf3,,,, -A21,"Smyslov Variation, English",1.c4 e5 2.Nc3 d6 3.Nf3 Bg4,,,, -A21,Anglo-Dutch,1.c4 e5 2.Nc3 f5,,,, -A22,"Two Knights Variation, English; A22",1.c4 e5 2.Nc3 Nf6,,,, -A22,"Mazedonisch Variation, English",1.c4 e5 2.Nc3 Nf6 3.f4,,,, -A22,"Bremen; Carls Variation, English",1.c4 e5 2.Nc3 Nf6 3.g3,,,, -A22,"Kapengut; Smyslov; Modern V, English",1.c4 e5 2.Nc3 Nf6 3.g3 Bb4,,,, -A22,"Bellon Gambit, English",1.c4 e5 2.Nc3 Nf6 3.Nf3 e4 4.Ng5 b5,,,, -A22,"Erbenheimer Gambit, English",1.c4 e5 2.Nc3 Nf6 3.Nf3 e4 4.Ng5 Ng4,,,, -A23,"Keres Variation, English; A23",1.c4 e5 2.Nc3 Nf6 3.g3 c6,,,, -A23,"Reversed Dragon, English",1.c4 e5 2.Nc3 Nf6 3.g3 d5,,,, -A24,"Fianchetto Lines, Two Knights Variation, English; A24",1.c4 e5 2.Nc3 Nf6 3.g3 g6,,,, -A24,"Prickly Pawn Pass System, English",1.c4 e5 2.Nc3 Nf6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.e4 O-O 7.Nge2 c6 8.O-O a6,,,, -A25,"Reversed Closed Sicilian, English; A25",1.c4 e5 2.Nc3 Nc6,,,, -A25,"Troger Variation, English",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Be6,,,, -A25,"Taimanov Variation, English",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7,,,, -A25,"Hungarian Attack, English",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 4.Rb1,,,, -A25,"Closed System, Full Symmetry, King's English",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6,,,, -A25,"Botvinnik System, King's English",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.e4,,,, -A25,"Bremen-Hort Variation, English",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Be6,,,, -A25,"Botvinnik Variation, English",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e4,,,, -A26,"Closed System, King's English; A26",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3,,,, -A27,"Three Knights System, English; A27",1.c4 e5 2.Nc3 Nc6 3.Nf3,,,, -A28,"Four Knights Variation, English; A28",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6,,,, -A28,"Korchnoi Line, English",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.a3,,,, -A28,"Flexible Line, English",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d3,,,, -A28,"Bradley Beach Variation, English",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d4 e4,,,, -A28,"Four Knights Variation, English��",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d4 exd4 5.Nxd4Bb4 6.Bg5 h6 7.Bh4 Bxc3+ 8.bxc3 Ne5,,,, -A28,"Quiet Line, English",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3,,,, -A28,"Romanishin Variation, English",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 Bxc3,,,, -A28,"Keene; Stean Variation, English",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 O-O 6.Nd5 Re8 7.Qf5,,,, -A28,"Botvinnik Line, English",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e4,,,, -A29,"Fianchetto Line, Four Knights English; A29",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3,,,, -A30,"Symmetrical Defense, English; A30",1.c4 c5��,,,, -A30,"Wing Variation, English",1.c4 c5 2.b4,,,, -A30,"Napolitano Gambit, Symmetrical English",1.c4 c5 2.Nf3 Nf6 3.b4,,,, -A30,"Hedgehog Variation, Symmetrical English",1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7,,,, -A30,"Double Fianchetto Defense, English",1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6,,,, -A31,"Anti-Benoni Variation, Symmetrical English; A31",1.c4 c5 2.Nf3 Nf6 3.d4,,,, -A31,"Two Knights Variation, English",1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4,,,, -A32,"Spielmann Defense, Symmetrical English; A32",1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6,,,, -A33,A33,1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6,,,, -A33,"Geller Variation, Symmetrical English",1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.g3 Qb6,,,, -A34,"Normal Variation, Symmetrical English; A34",1.c4 c5 2.Nc3,,,, -A34,"Fianchetto Variation, Symmetrical English��",1.c4 c5 2.Nc3 Nf6 3.g3,,,, -A34,"Rubinstein Variation, Symmetrical English",1.c4 c5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7,,,, -A34,"Asymmetrical Variation, English",1.c4 c5 2.Nc3 Nf6 3.Nf3 d5 4.cxd5 Nxd5,,,, -A34,"Keres-Parma System, English",1.c4 c5 2.Nc3 Nf6 3.Nf3 e6 4.g3 Nc6,,,, -A34,"Four Knights Variation, Symmetrical English",1.c4 c5 2.Nc3 Nf6 3.Nf3 Nf6,,,, -A35,"Two Knights Variation, Symmetrical English; A35",1.c4 c5 2.Nc3 Nc6���,,,, -A36,"Fianchetto Variation, Symmetrical English; A36",1.c4 c5 2.Nc3 Nc6 3.g3,,,, -A36,"Symmetrical Variation, Symmetrical English",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7,,,, -A36,"Botvinnik System Reversed, Symmetrical English",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 e5,,,, -A36,"Botvinnik Variation, Symmetrical English",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e4,,,, -A37,"Two Knights Line, Symmetrical English; A37",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3,,,, -A38,"Full Symmetry Line, Symmetrical English; A38",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6,,,, -A38,"Double Fianchetto, Symmetrical English",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.b3,,,, -A38,"Duchamp Variation, Symmetrical English",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d3,,,, -A39,"Mecking Variation, Symmetrical English; A39",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4,,,, -A40,"Hartlaub Gambit, English",1.c4 b6 2.d4 Bb7 3.Nc3 e6 4.e4 f5 5.exf5 Nf6,,,, -A40,Queen Pawn Opening; A40,1.d4,,,, -A40,St George's Gambit,1.d4 a6 2.c4 b5 3.e4 e6 4.cxb5 axb5,,,, -A40,Polish Defense,1.d4 b5��,,,, -A40,"Spassky Gambit, Polish Defense",1.d4 b5 2.e4 Bb7 3.Bxb5,,,, -A40,"Queen Fianchetto, Queen Pawn Game",1.d4 b6,,,, -A40,Eastbourne Gambit,1.d4 b6 2.c4 Bb7 3.Bxb5,,,, -A40,Charlick Gambit; Englund Gambit,1.d4 e5,,,, -A40,Englund Gambit Declined,1.d4 e5 2.d5,,,, -A40,Diemer Counterattack,1.d4 e5 2.d5 Bc5 3.e4 Qh4,,,, -A40,Thuring Gambit; Hartlaub-Charlick Gambit,1.d4 e5 2.dxe5 d6,,,, -A40,Soller; Purchas Gambit,1.d4 e5 2.dxe5 f6,,,, -A40,Englund; Behting Gambit,1.d4 e5 2.dxe5 Nc6��,,,, -A40,Felbecker Gambit,1.d4 e5 2.dxe5 Nc6 3.Nf3 Bc5,,,, -A40,Soller Gambit Deferred,1.d4 e5 2.dxe5 Nc6 3.Nf3 f6,,,, -A40,"Zilbermints Gambit II, Englund Gambit",1.d4 e5 2.dxe5 Nc6 3.Nf3 h6,,,, -A40,"Zilbermints Gambit, Englund Gambit",1.d4 e5 2.dxe5 Nc6 3.Nf3 Nge7,,,, -A40,Englund Gambit,1.d4 e5 2.dxe5 Nc6 3.Nf3 Qe7,,,, -A40,"Stockhom Variation, Englund Gambit",1.d4 e5 2.dxe5 Nc6 3.Nf3 Qe7 4.Qd5,,,, -A40,"Mosquito Gambit, Englund",1.d4 e5 2.dxe5 Qh4,,,, -A40,Horwitz Defense,1.d4 e6,,,, -A40,Franco-Indian Defense,1.d4 e6,,,, -A40,"Seneschaud Variation, Dutch",1.d4 e6 2.Bf4 f5 3.g4,,,, -A40,English Defense,1.d4 e6 2.c4 b6,,,, -A40,Perrin Variation,1.d4 e6 2.c4 b6 3.e4 Bb7 4.Bd3 Nc6,,,, -A40,Poli Gambit,1.d4 e6 2.c4 b6 3.e4 Bb7 4.f3 f5 5.exf5 Nh6,,,, -A40,Hartlaub Gambit Declined,1.d4 e6 2.c4 b6 3.Nc3 Bb7 4.e4 f5 5.d5,,,, -A40,Hartlaub Gambit Accepted,1.d4 e6 2.c4 b6 3.Nc3 Bb7 4.e4 f5 5.exf5 Nf6,,,, -A40,"Keres Defense, Indian; Kangaroo Defense",1.d4 e6 2.c4 Bb4+,,,, -A40,"Transpositional Variation, Keres Defense",1.d4 e6 2.c4 Bb4+ 3.Nc3,,,, -A40,Zilbermints Gambit,1.d4 e6 2.c4 e5,,,, -A40,Borg Gambit,1.d4 g5,,,, -A40,Queen Pawn Fianchetto,1.d4 g6,,,, -A40,Kotov-Robatsch Defense,1.d4 g6 2.c4 Bg7,,,, -A40,Pseudo-Saemisch,1.d4 g6 2.c4 Bg7 3.e4 d6 4.Be3 Nf6 5.f3,,,, -A40,Rossolimo Variation,1.d4 g6 2.c4 Bg7 3.e4 d6 4.Nf3 Bg4,,,, -A40,Neo-Modern Defense,1.d4 g6 2.c4 Bg7 3.e4 e5,,,, -A40,Beefeater Variation,1.d4 g6 2.c4 Bg7 3.Nc3 c5 4.d5 Bxc3+ 5.bxc3 f5,,,, -A40,Modern Defense,1.d4 g6 2.c4 Bg7 3.Nc3 d6,,,, -A40,"Kotov Variation, Modern",1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 Nc6,,,, -A40,Lizard Defense; Pirc-Diemer Gambit,1.d4 g6 2.h4 Nf6 3.h5,,,, -A40,Bogoljubov; Mikenas-Van Geet Defense,1.d4 Nc6,,,, -A40,Lundin Defense,1.d4 Nc6,,,, -A40,"Lithuanian Variation, Mikenas",1.d4 Nc6 2.c4 e5 3.d5 Nce7,,,, -A40,"Cannstatter Variation, Mikenas",1.d4 Nc6 2.c4 e5 3.d5 Nd4,,,, -A40,Pozarek Gambit,1.d4 Nc6 2.c4 e5 3.dxe5 Nxe5 4.Nc3 Nxc4,,,, -A40,Montevideo Defense,1.d4 Nc6 2.d5 Nb8,,,, -A40,Zaire Defense,1.d4 Nc6 2.d5 Nb8 3.e4 Nf6 5.e5 Ng8,,,, -A40,Polish Variation,1.e4 g6 2.d4 Bg7 3.c4 c5 4.Nf3 Qb6,,,, -A40,"Dunworth Variation, Modern Defense",1.e4 g6 2.d4 Bg7 3.c4 d5 4.exd5 c6 5.dxc6 Bxd4,,,, -A41,Anglo-Slav Opening,1.d4 c6 2.c4 d6,,,, -A41,Pillsbury Defense; A41; Rat Defense,1.d4 d6��,,,, -A41,Wade Defense,1.d4 d6 2.Nf3 Bg4,,,, -A41,"Averbakh Variation, Modern",1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4,,,, -A41,"Pterodactyl Variation, Modern",1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 c5 5.Nf3 Qa5,,,, -A42,A42,1.d4 d6 2.c4,,,, -A42,English Rat,1.d4 d6 2.c4 e5,,,, -A42,Lisbon Gambit,1.d4 d6 2.c4 e5 3.dxe5 Nc6,,,, -A42,Randspringer Variation,1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 f5,,,, -A43,Staunton Defense; Benoni C-G; A43,1.d4 c5,,,, -A43,"Zilbermints Gambit; Nakamura Gambit, Benoni",1.d4 c5 2.b4 cxb4,,,, -A43,Old Benoni,1.d4 c5 2.d5 d6,,,, -A43,"Schmid Variation, Benoni",1.d4 c5 2.d5 d6 3.Nc3 g6,,,, -A43,Franco-Benoni; Franco-Sicilian,1.d4 c5 2.d5 e6 3.e4,,,, -A43,"Clarendon Court Variation, Benoni",1.d4 c5 2.d5 f5,,,, -A43,Benoni-Staunton Gambit,1.d4 c5 2.d5 f5 3.e4,,,, -A43,"Snail Variation, Benoni",1.d4 c5 2.d5 Na6,,,, -A43,Benoni-Indian Defense,1.d4 c5 2.d5 Nf6,,,, -A43,"Woozle Defense, Benoni",1.d4 c5 2.d5 Nf6 3.Nc3 Qa5,,,, -A43,"Kingside move order, Benoni",1.d4 c5 2.d5 Nf6 3.Nf3,,,, -A43,"Habichd; Hawk Variation, Benoni",1.d4 c5 2.d5 Nf6 3.Nf3 c4,,,, -A43,"Hawk Variation, Benoni",1.d4 c5 2.d5 Nf6 3.Nf3 e4,,,, -A43,Benoni Gambit Accepted,1.d4 c5 2.dxc5,,,, -A43,"Cormorant Gambit, Benoni",1.d4 c5 2.dxc5 b6,,,, -A43,"Schlenker Defense, Benoni",1.d4 c5 2.dxc5 Na6,,,, -A43,Zilbermints-Benoni Gambit,1.d4 c5 2.Nf3 cxd4 3.b4,,,, -A43,"Tamarkin Countergambit, Benoni",1.d4 c5 2.Nf3 cxd4 3.b4 e5,,,, -A43,Franco-Sicilian Hybrid,1.d4 e6 2.c4 c5 3.d5 exd5 4.cxd5 d6 5.Nc3 g6 6.e4 Bg7 7.Nf3 Ne7,,,, -A44,"Pawn Thrust, Benoni; A44",1.d4 c5 2.d5 e5,,,, -A44,Blockade Variation; Semi-Benoni; Russian Variation,1.d4 c5 2.d5 e5 3.e4 d6,,,, -A45,Indian Defense; A45,1.d4 Nf6,,,, -A45,Basque Opening,1.d4 Nf6 2.b3,,,, -A45,Trompowsky; Opocensky; Ruth Opening,1.d4 Nf6 2.Bg5,,,, -A45,"Poisoned Pawn Variation, Trompowsky",1.d4 Nf6 2.Bg5 c5 3.d5 Qb6 4.Nc3,,,, -A45,Chepukaitis Gambit,1.d4 Nf6 2.Bg5 c5 3.d5 Qb6 4.Nc3 Qxb2 5.Bd2 Qb6,,,, -A45,"Borg Variation, Trompowsky",1.d4 Nf6 2.Bg5 Ne4 3.Bf4 g5,,,, -A45,"Edge Variation, Trompowsky",1.d4 Nf6 2.Bg5 Ne4 3.Bh4,,,, -A45,"Hergert Gambit #2, Trompowsky",1.d4 Nf6 2.Bg5 Ne4 3.Bh4 c6 4.Nd2 Qa5 5.c3 Nxd2 6.Qxd2 d5 7.e4,,,, -A45,"Hergert Gambit #1, Trompowsky",1.d4 Nf6 2.Bg5 Ne4 3.Bh4 d5 4.f3 Nf6 5.Nc3 Bf5 6.e4,,,, -A45,"Raptor Variation, Trompowsky",1.d4 Nf6 2.Bg5 Ne4 3.h4,,,, -A45,"Hergert Gambit, Trompowsky",1.d4 Nf6 2.Bg5 Ne4 3.h4 Nxg5 4.hxg5 e5,,,, -A45,Pawn Push Variation,1.d4 Nf6 2.d5,,,, -A45,Omega Gambit,1.d4 Nf6 2.e4,,,, -A45,Arafat Gambit,1.d4 Nf6 2.e4 Nxe4 3.Bd3 Nf6 4.Bg5,,,, -A45,Paleface Attack,1.d4 Nf6 2.f3,,,, -A45,Webster Gambit,1.d4 Nf6 2.f3 c5 3.d5 e6 4.e4 exd5 5.e5,,,, -A45,Blackmar-Diemer Gambit Deferred,1.d4 Nf6 2.f3 d5 3.e4��,,,, -A45,Kraus-Muhlherr Counter Gambit,1.d4 Nf6 2.f3 d5 3.e4 e5 4.dxe5 Nxe4,,,, -A45,Gedult Attack,1.d4 Nf6 2.f3 d5 3.g4,,,, -A45,Gedult-Gunderam System,1.d4 Nf6 2.f3 d5 3.g4,,,, -A45,Linder Counter Gambit,1.d4 Nf6 2.f3 e6 3.e4 Nxe4,,,, -A45,Canard Attack,1.d4 Nf6 2.f4,,,, -A45,Ueberlinger Gambit,1.d4 Nf6 2.g3 e5,,,, -A45,Bullfrog; Weidenhagen; Krabbe; Ochsenfrosch,1.d4 Nf6 2.g4,,,, -A45,Bronstein Gambit,1.d4 Nf6 2.g4,,,, -A45,Oshima Defense,1.d4 Nf6 2.g4 e5,,,, -A45,Gibbins-Wiedehagen Gambit Accepted,1.d4 Nf6 2.g4 Nxg4,,,, -A45,Stummer Gambit,1.d4 Nf6 2.g4 Nxg4 3.e4 d6 4.Be2 Nf6 5.Nc3,,,, -A45,Maltese Falcon,1.d4 Nf6 2.g4 Nxg4 3.f3 Nf6 4.e4,,,, -A45,Reversed Chigorin Defense,1.d4 Nf6 2.Nc3 c5,,,, -A45,Von Beivorseen,1.d4 Nf6 2.Nc3 c5 3.dxc5,,,, -A45,Malich Gambit,1.d4 Nf6 2.Nc3 d5 3.Bg5 c5 4.Bxf6 gxf6 5.e4 dxe4 6.d5,,,, -A45,Huebsch Gambit,1.d4 Nf6 2.Nc3 d5 3.e4 Nxe4,,,, -A45,Maddigan Gambit,1.d4 Nf6 2.Nc3 e5,,,, -A45,Lazard Gambit; Maddigan Gambit,1.d4 Nf6 2.Nd2 e5,,,, -A46,"Knights Variation, Indian Game; A46",1.d4 Nf6 2.Nf3,,,, -A46,Polish Defense,1.d4 Nf6 2.Nf3 b5,,,, -A46,Spielmann-Indian,1.d4 Nf6 2.Nf3 c5,,,, -A46,Pseudo-Benko Gambit,1.d4 Nf6 2.Nf3 c5 3.d5 b5,,,, -A46,Czech-Indian,1.d4 Nf6 2.Nf3 c6,,,, -A46,London System,1.d4 Nf6 2.Nf3 e6 3.Bf4,,,, -A46,Torre Attack,1.d4 Nf6 2.Nf3 e6 3.Bg5,,,, -A46,Petrosian Gambit,1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e3 b6 5.d5,,,, -A46,Swiss; Wagner Gambit,1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e4,,,, -A46,"Nimzovich Variation, Torre Attack",1.d4 Nf6 2.Nf3 e6 3.Bg5 h6,,,, -A46,Yusupov-Rubinstein System,1.d4 Nf6 2.Nf3 e6 3.e3,,,, -A46,Dory Defense,1.d4 Nf6 2.Nf3 Ne4,,,, -A47,"Capablanca Variation, Indian Game; A47",1.d4 Nf6 2.Nf3 b6,,,, -A47,Torre Attack,1.d4 Nf6 2.Nf3 b6 3.Bg5,,,, -A47,Schnepper Gambit,1.d4 Nf6 2.Nf3 b6 3.c3 e5,,,, -A47,Marienbad Variation,1.d4 Nf6 2.Nf3 b6 3.g3 Bb7 4.Bg2 c5,,,, -A47,Berg Variation,1.d4 Nf6 2.Nf3 b6 3.g3 Bb7 4.Bg2 c5 5.c4 cxd4 6.Qxd4,,,, -A48,Pseudo-King's Indian Variation; A48,1.d4 Nf6 2.Nf3 g6,,,, -A48,"London System, Torre Attack",1.d4 Nf6 2.Nf3 g6 3.Bf4,,,, -A48,London Variation,1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.Nbd2,,,, -A48,"Fianchetto Defense, Torre Attack",1.d4 Nf6 2.Nf3 g6 3.Bg5,,,, -A48,"Euwe Variation, Torre Attack",1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 c5,,,, -A48,King's Indian Variation,1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Bd3 d6,,,, -A49,Przepiorka Variation; A49,1.d4 Nf6 2.Nf3 g6 3.g3,,,, -A50,"Normal Variation, Indian Game; A50",1.d4 Nf6 2.c4,,,, -A50,Pyrenees Gambit,1.d4 Nf6 2.c4 b5,,,, -A50,Queen's Indian Defense; Saemisch-Indian,1.d4 Nf6 2.c4 b6,,,, -A50,Medusa Gambit,1.d4 Nf6 2.c4 g5,,,, -A50,Van Geet; Kevitz; Trajkovic; Mexican,1.d4 Nf6 2.c4 Nc6,,,, -A50,Horsefly Gambit,1.d4 Nf6 2.c4 Nc6 3.d5 Ne5 4.f4,,,, -A51,Budapest Defense; A51,1.d4 Nf6 2.c4 e5,,,, -A51,"Fajarowicz Variation, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ne4,,,, -A51,"Bonsdorf Variation, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ne4 4.a3 b6,,,, -A51,"Steiner Variation, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ne4 4.Qc2,,,, -A52,"Normal Variation, Budapest; A52",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4,,,, -A52,"Rubinstein Variation, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Bf4,,,, -A52,"Kornl Richter Gambit, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Bf4 Nc6 5.Nf3 Bb4+ 6.Nc3 Bxc3+,,,, -A52,"Center Play Variation, Budapest; Alekhine Variation",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4,,,, -A52,"Balogh; Tartakower C-G, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 d6,,,, -A52,"Barmina Gambit, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 Nxe5 5.f4 Bc5,,,, -A52,"Wikstrom Gambit, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 Nxe5 5.f4 Nbc6,,,, -A52,"Abonyi Variation, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 Nxe5 5.f4 Nec6,,,, -A52,"Adler Variation, Budapest",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3,,,, -A53,Old Indian Defense; Chigorin Indian Defense; A53,1.d4 Nf6 2.c4 d6,,,, -A53,Aged Gibbon Gambit,1.d4 Nf6 2.c4 d6 3.g4,,,, -A53,"Janowski Variation, Old Indian",1.d4 Nf6 2.c4 d6 3.Nc3 Bf5,,,, -A53,"Grinberg Gambit, Old Indian",1.d4 Nf6 2.c4 d6 3.Nc3 Bf5 4.e4,,,, -A53,Ukranian Variation,1.d4 Nf6 2.c4 d6 3.Nc3 e5,,,, -A53,Duz-Khotimirsky Variation,1.d4 Nf6 2.c4 d6 3.Nc3 Nbd7 4.e3 e5 5.Bd3,,,, -A53,Tartakower-Indian,1.d4 Nf6 2.c4 d6 3.Nf3 Bg4,,,, -A54,"Two Knights Variation, Old Indian; A54",1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3,,,, -A55,"Normal Variation, Old Indian; A55",1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.e4,,,, -A56,"Vulture Defense, Benoni",1.d4 c5 2.d5 Nf6 3.c4 Ne4,,,, -A56,Hromadka Defense; Loose Gambit: A56,1.d4 Nf6 2.c4 c5,,,, -A56,"Hromadka System, Benoni",1.d4 Nf6 2.c4 c5 3.d5 d6,,,, -A56,Lundin; Bronstein Counter-Gambit,1.d4 Nf6 2.c4 c5 3.d5 d6 4.Nc3 g6 5.e4 b5,,,, -A56,Petrosian System; Czech Benoni Defense,1.d4 Nf6 2.c4 c5 3.d5 e5,,,, -A56,"Czech Variation, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7,,,, -A56,"King's Indian System, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 g6,,,, -A56,Vulture Variation; Der Geier,1.d4 Nf6 2.c4 c5 3.d5 Ne4,,,, -A56,"Weenink Variation, Benoni",1.d4 Nf6 2.c4 c5 3.dxc5 e6,,,, -A57,Benko Gambit; Volga; Opocensky; Vaitonis; A57,1.d4 Nf6 2.c4 c5 3.d5 b5,,,, -A57,"Sosonko Variation, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.a4,,,, -A57,"Bishop Attack, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.Bg5,,,, -A57,Benko Gambit Accepted,1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5,,,, -A57,"Pawn Return Variation, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.b6,,,, -A57,"Central Storming Variation, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.f4,,,, -A57,"Modern Variation, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.e3,,,, -A57,"Dlugy Variation, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.f3,,,, -A57,"Zaitsev System, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.Nc3��,,,, -A57,"Nescafe Frappe Attack, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.Nc3 axb5 6.e4 b4 7.Nb5,,,, -A57,"Zaitsev Variation, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.Nc3 axb5 6.e4 b4 7.Nb5 d6 8.Nf3 g6 9.Bc4,,,, -A57,Benko Gambit Declined; Hjoerring Countergambit,1.d4 Nf6 2.c4 c5 3.d5 b5 4.e4,,,, -A57,"Pseudo-Saemisch, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.f3,,,, -A57,"Mutkin Countergambit, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.g4,,,, -A57,"Quiet Line, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nd2,,,, -A57,"Main Line, Benko Gambit Declined",1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nf3,,,, -A58,"Fully Accepted Variation, Benko Gambit; A58",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6,,,, -A58,"Fianchetto Variation, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 g6 7.Nf3 d6 8.g3 Bg7 9.Bg2,,,, -A59,A59,1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.e4,,,, -A59,"King Walk Variation, Benko Gambit",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.e4 Bxf1 8.Kxf1 g6 9.g3 Bg7 10.Kg2 O-O,,,, -A60,"Tal Variation, Modern Variation, Benoni; A60",1.d4 Nf6 2.c4 c5 3.d5 e6,,,, -A60,Modern Benoni,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6,,,, -A61,A61,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3,,,, -A61,"Snake Variation, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 Bd6,,,, -A61,"Penrose Variation, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bd3,,,, -A61,"Uhlmann Variation, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bg5,,,, -A61,"Nimzovich Variation, Knight's Tour Variation, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Nd2,,,, -A62,A62,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3,,,, -A62,"Fianchetto Variation, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2,,,, -A62,"Hastings Defense, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 9.O-O Nbd7,,,, -A63,A63,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 9.O-O a6,,,, -A64,A64,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 9.O-O a6 10.a4 Nbd7 11.Nd2,,,, -A65,"King Pawn lines, Benoni; A65",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4,,,, -A66,"Pawn Storm Variation, Benoni; A66",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4,,,, -A66,"Mikenas V, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5,,,, -A67,"Taimanov Variation, Benoni; A67",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5,,,, -A68,A68,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3,,,, -A68,"Four Pawns Attack, Benoni",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 O-O�,,,, -A69,A69,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 O-O 9.Be2 Re8,,,, -A70,"Classical Variation, Benoni; A70",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3,,,, -A71,A71,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Bg5,,,, -A72,A72,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2,,,, -A73,A73,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O,,,, -A74,A74,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O a6,,,, -A75,"Argentine Attack, Benoni; A75",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O a6 10.a4 Bg4,,,, -A76,"Czerniak Defesne, Benoni; A76",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8,,,, -A77,A77,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2,,,, -A78,A78,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Na6,,,, -A79,A79,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Na6 11.f3,,,, -A80,Dutch Defense; A80,1.d4 f5,,,, -A80,"Seneschaud Gambit, Dutch",1.d4 f5 2.Bf4 e6 3.g4,,,, -A80,"Hopton Attack, Dutch",1.d4 f5 2.Bg5,,,, -A80,"Blackmar's Second Gambit, Dutch",1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.f3,,,, -A80,"Lisbon Gambit, Dutch; Krejcik Gambit",1.d4 f5 2.g4,,,, -A80,"Hevendehl Gambit, Dutch",1.d4 f5 2.g4 e5,,,, -A80,"Tate Gambit, Dutch",1.d4 f5 2.g4 fxg4 3.e4 d5 4.Nc3,,,, -A80,"Korchnoi's Variation, Dutch",1.d4 f5 2.h3,,,, -A80,"Janzen-Korchnoi Gambit, Dutch",1.d4 f5 2.h3 Nf6 3.g4,,,, -A80,"Raphael Variation, Dutch",1.d4 f5 2.Nc3,,,, -A80,"Kingfisher Gambit, Dutch",1.d4 f5 2.Nc3 d5 3.e4,,,, -A80,"Spielmann Gambit, Dutch",1.d4 f5 2.Nc3 Nf6 3.g4,,,, -A80,"Barcza Variation, Dutch",1.d4 f5 2.Nf3 Nf6 3.c3,,,, -A80,"Alapin; Ulvestad; Manhattan; Kmoch Variation, Dutch",1.d4 f5 2.Qd3��,,,, -A80,"Anti-Stonewall, Dutch",1.d4 f5 2.Qd3 d5 3.g4,,,, -A80,"Anti-Modern, Dutch",1.d4 f5 2.Qd3 d6 3.g4,,,, -A80,"Anti-Classical Line, Dutch",1.d4 f5 2.Qd3 e6 3.g4,,,, -A80,"Anti-Leningrad Variation, Dutch",1.d4 f5 2.Qd3 g6 3.g4,,,, -A80,"Manhattan Gambit, Dutch",1.d4 f5 2.Qd3 Nf6 3.g4,,,, -A80,"Pretzel Gambit, Dutch",1.d4 f5 2.Qd3 Nf6 3.g4,,,, -A81,"Dutch Indian; Leningrad Variation, Dutch; A81",1.d4 f5 2.g3,,,, -A81,"Basman Variation, Dutch",1.d4 f5 2.g3 g6 3.Bg2 Bg7 4.Nf3 c6 5.O-O Nh6,,,, -A81,"Carlsbad Variation, Dutch",1.d4 f5 2.g3 g6 3.Bg2 Bg7 4.Nh3,,,, -A81,"Antoshin-Hort Variation, Dutch",1.d4 f5 2.g3 Nf6 3.Bg2 d6,,,, -A81,"Ilyin-Genevsky Variation, Dutch",1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.Nf3 Be7 5.O-O O-O 6.c4 d6,,,, -A81,"Blackburne Variation, Dutch",1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.Nh3,,,, -A81,"Semi-Leningrad Variation, Dutch",1.d4 f5 2.g3 Nf6 3.Bg2 g6,,,, -A82,"Staunton Gambit, Dutch; A82",1.d4 f5 2.e4��,,,, -A82,"Balogh Defense, Dutch",1.d4 f5 2.e4 d6,,,, -A82,"Staunton Gambit Accepted, Dutch",1.d4 f5 2.e4 fxe4,,,, -A82,"Tartakower Variation, Dutch",1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4,,,, -A82,"American Gambit, Dutch",1.d4 f5 2.e4 fxe4 3.Nd2,,,, -A83,"General Variation, Staunton Gambit, Dutch; A83",1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5,,,, -A83,"Nimzovich Variation, Dutch",1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 b6,,,, -A83,"Chigorin Variation, Dutch",1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 c6,,,, -A83,"Lasker Variation, Dutch",1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 g6 5.f3,,,, -A84,"Slav Stonewall, Dutch",1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5,,,, -A84,Bellon Gambit,1.d4 e6 2.c4 f5 3.e4,,,, -A84,A84,1.d4 f5 2.c4,,,, -A84,"Classical Variation, Dutch",1.d4 f5 2.c4 e6,,,, -A84,"Bellon Gambit, Dutch",1.d4 f5 2.c4 e6 3.e4,,,, -A84,"Rubinstein Variation, Dutch",1.d4 f5 2.c4 e6 3.Nc3,,,, -A84,"Stonewall Variation, Dutch",1.d4 f5 2.c4 e6 3.Nc3 Nf6 4.g3 c6 5.Bg2 d5 6.O-O Bd6,,,, -A84,"Queen's Knight Variation, Dutch",1.d4 f5 2.c4 Nf6 3.Nc3,,,, -A84,"Krause Variation, Dutch",1.d4 f5 2.c4 Nf6 3.Nc3 d6 4.Nf3 Nc6,,,, -A85, ,1.d4 f5 2.c4 g6 3.Nc3,,,, -A85,"Bladel Variation, Dutch",1.d4 f5 2.c4 g6 3.Nc3 Nh6,,,, -A85,"Normal Variation, Dutch",1.d4 f5 2.c4 Nf6,,,, -A85,"Ozol Variation, Dutch",1.d4 f5 2.c4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Bg5,,,, -A86,"Fianchetto Variation, Dutch; A86",1.d4 f5 2.c4 Nf6 3.g3,,,, -A86,"Leningrad Variation, Dutch",1.d4 f5 2.c4 Nf6 3.g3 g6,,,, -A87,A87,1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3,,,, -A87,"Fluid Formation, Dutch",1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6,,,, -A88,"Warsaw Variation, Dutch; A88",1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 c6,,,, -A89,"Matulovic Variation, Dutch; A89",1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 Nc6,,,, -A90,A90,1.d4 f5 2.c4 Nf6 3.g3 e6,,,, -A90,"Classical Variation, Dutch�",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2,,,, -A90,Nimzo-Dutch Variation,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Bb4+,,,, -A91,A91,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7,,,, -A91,"Botvinnik-Bronstein Variation, Dutch",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nc3 O-O 6.e3,,,, -A91,"Blackburne Attack, Dutch",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Bg7 5.Nh3,,,, -A92,A92,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3,,,, -A92,"Alekhine Variation, Dutch",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O Ne4,,,, -A93,"Botvinnik Variation, Dutch; A93",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d5 7.b3,,,, -A94,A94,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d5 7.b3 c6,,,, -A95,A95,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d5 7.Nc3,,,, -A96,A96,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6,,,, -A97,"Ilyin-Zhenevsky Variation, Dutch; A97",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8,,,, -A98,A98,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.Qc2,,,, -A99,A99,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.b3,,,, -B00,Ware Defense,1.e4 a5,,,, -B00,Corn Stalks,1.e4 a5,,,, -B00,Snagkeouss Defense,1.e4 a5 2.d4 Nc6,,,, -B00,St George; Birmingham; Baker,1.e4 a6��,,,, -B00,San Jorge Variation,1.e4 a6 2.d4 b5 3.Nf3 Bb7 4.Bd3 d6 5.O-O g6 6.c3 Bg7,,,, -B00,"Polish Variation, St George Defense",1.e4 a6 2.d4 b5 3.Nf3 Bb7 4.Bd3 e6,,,, -B00,"Zilbermints Gambit, St George Defense",1.e4 a6 2.d4 e5,,,, -B00,San Jorge Variation,1.e4 a6 2.d4 e6,,,, -B00,"Three Pawn Attack, St George",1.e4 a6 2.d4 e6 3.c4,,,, -B00,"Sanky-Georg Gambit, St George",1.e4 a6 2.d4 e6 3.c4 b5,,,, -B00,"Woodchuck Variation, St George",1.e4 a6 2.d4 Nc6,,,, -B00,Owen's Defense; Greek Defense,1.e4 b6,,,, -B00,Guatemalan Defense,1.e4 b6 2.d4 Ba6,,,, -B00,Matovinsky Gambit,1.e4 b6 2.d4 Bb7 3.Bd3 f5,,,, -B00,Matovinsky Gambit,1.e4 b6 2.d4 Bb7 3.Bd3 f5 4.exf5 Bxg2 5.Qh5+ g6,,,, -B00,"Naselwaus Variation, Owen's Defense",1.e4 b6 2.d4 Bb7 3.Bg5,,,, -B00,"Wind Gambit, Owen Defense",1.e4 b6 2.d4 Bb7 3.f3 e5,,,, -B00,"Smith Gambit, Owen Defense",1.e4 b6 2.d4 Bb7 3.Nf3,,,, -B00,"Hekili-Loa Gambit, Owen Defense",1.e4 b6 2.d4 c5 3.dxc5 Nc6,,,, -B00,Mao Tse Tung; Duras,1.e4 f5,,,, -B00,Fred; From Reversed,1.e4 f5,,,, -B00,Tiers Counter-Gambit,1.e4 f5,,,, -B00,Barnes Defense,1.e4 f6,,,, -B00,Basman Defense; Macho Grob,1.e4 g5,,,, -B00,Basman; Macho Grob; Borg,1.e4 g5��,,,, -B00,Borg Gambit,1.e4 g5 2.d4 Bg7,,,, -B00,"Zilbermints Gambit, Borg",1.e4 g5 2.d4 e5,,,, -B00,Borg Defense; Troon Gambit,1.e4 g5 2.d4 h6 3.h4 g4,,,, -B00,Pickering (Goldsmith) Defense,1.e4 h5,,,, -B00,Picklepuss Defense,1.e4 h5 2.d4 Nf6,,,, -B00,Carr Defense,1.e4 h6,,,, -B00,"Zilbermints Gambit, Carr Defense",1.e4 h6 2.d4 e5,,,, -B00,Lemming Defense,1.e4 Na6,,,, -B00,Nimzovich Defense,1.e4 Nc6,,,, -B00,"Wheeler Gambit, Nimzovich Defense",1.e4 Nc6 2.b4 Nxb4 3.c3 Nc6 4.d4,,,, -B00,Pseudo-Spanish Variation,1.e4 Nc6 2.Bb5,,,, -B00,"Scandanavian Variation, Nimzovich Defense",1.e4 Nc6 2.d4 d5,,,, -B00,"Hornung Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 d5 3.Be3,,,, -B00,"Aachen Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 d5 3.exd5 Nb4,,,, -B00,"Marshall Gambit, Nimzovich",1.e4 Nc6 2.d4 d5 3.exd5 Qxd5 4.Nc3,,,, -B00,"Bogoljubow Variation, Nizovich Defense",1.e4 Nc6 2.d4 d5 3.Nc3,,,, -B00,"Brandics Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 d5 3.Nc3 a6,,,, -B00,"Richter Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 d5 3.Nc3 dxe4 4.d5 Nb8 5.f3,,,, -B00,"Nimzovich Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 d5 3.Nc3 dxe4 4.d5 Ne5,,,, -B00,"Alekseev Variation, Nimzovich; Heinola-Deppe Gambit",1.e4 Nc6 2.d4 d5 3.Nc3 e5,,,, -B00,"Erben Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 d5 3.Nc3 g6,,,, -B00,"Vehre Variation, Nimzovich Defense",1.e4 Nc6 2.d4 d5 3.Nc3 Nf6,,,, -B00,"Mikenas Variation, Nimzovich Defense",1.e4 Nc6 2.d4 d6,,,, -B00,"Kennedy Variation, Nimzovich",1.e4 Nc6 2.d4 e5,,,, -B00,"Linksspringer Variation, Nimzovich Defense",1.e4 Nc6 2.d4 e5 3.d5,,,, -B00,"Bileefelder Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 e5 3.dxe5 Bc5,,,, -B00,"Burgar Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 e5 3.dxe5 d6,,,, -B00,"Hammer Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 e5 3.dxe5 f6,,,, -B00,"Riemann Defense, Nimzovich Defense",1.e4 Nc6 2.d4 e5 3.dxe5 Nxe5 4.f4 Nc6,,,, -B00,"Keres Attack, Nimzovich Defense",1.e4 Nc6 2.d4 e5 3.dxe5 Nxe5 4.Nc3,,,, -B00,"Paulsen Attack, Nimzovich Defense",1.e4 Nc6 2.d4 e5 3.dxe5 Nxe5 4.Nf3,,,, -B00,"Herford Gambit, Nimzovich Defense",1.e4 Nc6 2.d4 e5 3.dxe5 Qh4,,,, -B00,"French Connection, Nimzovich Defense",1.e4 Nc6 2.d4 e6,,,, -B00,"Neo-Mongoloid Defense, Nimzovich",1.e4 Nc6 2.d4 f6,,,, -B00,"Pirc Connection, Nimzovich Defense",1.e4 Nc6 2.d4 g6,,,, -B00,"Breyer Defense, Nimzovich",1.e4 Nc6 2.Nc3 Nf6,,,, -B00,"Williams Variation, Nimzovich",1.e4 Nc6 2.Nf3 d6,,,, -B00,Franco-Nimzovich Variation,1.e4 Nc6 2.Nf3 e6,,,, -B00,"Colorado Defense, Nimzovich; Lean Variation",1.e4 Nc6 2.Nf3 f5,,,, -B00,"Colorado Counter Accepted, Nimzovich Defense",1.e4 Nc6 2.Nf3 f5 3.exf5,,,, -B00,"El Columpio Defense, Nimzovich Defense",1.e4 Nc6 2.Nf3 Nf6 3.e5 Ng4,,,, -B00,Adams Defense,1.e4 Nh6,,,, -B00,Wild Bull Defense,1.e4 Nh6,,,, -B01,Center Counter; Scandanavian; B01,1.e4 d5,,,, -B01,"Zilbermints Gambit, Center Counter",1.e4 d5 2.b4,,,, -B01,"Blackbunre-Kloosterboer Gambit, Center Counter",1.e4 d5 2.exd5 c6 3.dxc6 e5,,,, -B01,"Atkinson (Kloosterboer) Variation, Center Counter",1.e4 d5 2.exd5 c6 3.dxc6 e5,,,, -B01,"Blackburne Gambit, Center Counter",1.e4 d5 2.exd5 c6 3.dxc6 Nxc6,,,, -B01,"Boehnke Gambit, Center Counter",1.e4 d5 2.exd5 e5,,,, -B01,"Boehnke Gambit Accepted, Center Counter",1.e4 d5 2.exd5 e5 3.dxe6 Bxe6,,,, -B01,"Marshall Gambit, Scandanavian G; Modern Variation, CC",1.e4 d5 2.exd5 Nf6���,,,, -B01,"Panov Transfer, Center Counter",1.e4 d5 2.exd5 Nf6 3.c4 c6,,,, -B01,"Icelandic-Palme Gambit, CC",1.e4 d5 2.exd5 Nf6 3.c4 e6,,,, -B01,"Portuguese Variation, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 Bg4,,,, -B01,"Portuguese Gambit, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 Bg4 4.f3 Bf5 5.Bb5+ Nbd7,,,, -B01,"Kadas Gambit, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 c6 4.dxc6 e5,,,, -B01,"Wing Gambit, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 g6 4.c4 b5,,,, -B01,"Marshall Variation, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 Nxd5,,,, -B01,"Kiel Variation, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.c4 Nb4,,,, -B01,"Tomalty Gambit, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.c4 Nf6 5.Nc3 c5,,,, -B01,"Gipslis Variation, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.Nf3 Bg4,,,, -B01,"Richter Variation, Center Counter",1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.Nf3 g6,,,, -B01,"Mieses-Kotroc Variation, Center Counter",1.e4 d5 2.exd5 Qxd5,,,, -B01,"Leonhardt (Rosen) Gambit, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.b4,,,, -B01,"Anderssen Variation, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 e5,,,, -B01,"Collijn Variation, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 e5 5.Nf3 Bg4,,,, -B01,"Mieses Variation, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6,,,, -B01,"Gruenfeld Variation, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 Bf5 6.Ne5 c6 7.g4,,,, -B01,"Lasker Variation, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 Bg4 6.h3,,,, -B01,"Gubinsky-Melts Defense, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6,,,, -B01,"Schiller-Pytel Variation, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 c6,,,, -B01,"Bronstein Variation, Center Counter",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 a6,,,, -B01,Closed Scandavian,1.e4 d5 2.Nc3,,,, -B02,Alekhine's Defense; B02,1.e4 Nf6��,,,, -B02,"Krejcik Variation, Alekhine",1.e4 Nf6 2.Bc4��,,,, -B02,"Fried Fox, Alekhine; Krejcik Gambit",1.e4 Nf6 2.Bc4 Nxe4 3.Bxf7+,,,, -B02,"Maroczy Variation, Alekhine",1.e4 Nf6 2.d3,,,, -B02,"Welling Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.b3,,,, -B02,"Kmoch Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.Bc4 Nb6 4.Bb3 c5 5.d3,,,, -B02,"Hunt Gambit, Alekhine; Two Pawn Attack",1.e4 Nf6 2.e5 Nd5 3.c4,,,, -B02,"Steiner Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.b3,,,, -B02,"Lasker Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.c5,,,, -B02,"Mikenas Gambit, Alekhine",1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.c5 Nd5 5.Bc4 e6 6.Nc3 d6 7.Nxd5 exd5 8.Bxd5,,,, -B02,"Matsukevich Gambit, Alekhine",1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.c5 Nd5 5.Nc3 Nxc3 6.dxc3 d6 7.Bg5,,,, -B02,"Buntin Gambit, Alekhine",1.e4 Nf6 2.e5 Nd5 3.e6,,,, -B02,"Buckley Attack, Alekhine",1.e4 Nf6 2.e5 Nd5 3.Na3,,,, -B02,"Saemisch Attack, Alekhine",1.e4 Nf6 2.e5 Nd5 3.Nc3,,,, -B02,Mokele Mbembe; Knight's Tour,1.e4 Nf6 2.e5 Ne4,,,, -B02,"Retreat; Brooklyn Variation, Alekhine",1.e4 Nf6 2.e5 Ng8,,,, -B02,"Everglades Defense, Alekhine",1.e4 Nf6 2.e5 Ng8 3.d4 f5,,,, -B02,"Scandanavian Variation, Alekhine",1.e4 Nf6 2.Nc3 d5,,,, -B02,"Myers Gambit, Alekhine",1.e4 Nf6 2.Nc3 d5 3.d3 dxe4 4.Bg5,,,, -B02,"Spielmann Variation, Alekhine",1.e4 Nf6 2.Nc3 d5 3.e5 Nfd7 4.e6,,,, -B02,"Noch Gambit, Alekhine",1.e4 Nf6 2.Nc3 d5 3.exd5,,,, -B02,"Geschev Gambit, Alekhine",1.e4 Nf6 2.Nc3 d5 3.exd5 c6,,,, -B02,"John Tracy Gambit, Alekhine",1.e4 Nf6 2.Nf3,,,, -B03,B03,1.e4 Nf6 2.e5 Nd5 3.d4,,,, -B03,"Wall Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 c5,,,, -B03,"Balogh Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Bc4,,,, -B03,"Hunt Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.c5,,,, -B03,Four Pawns Attack; Chase V,1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4,,,, -B03,"Trifunovic Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 Bf5,,,, -B03,"Cambridge Gambit, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 g5,,,, -B04,B04,1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3,,,, -B04,"Panov Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.h3,,,, -B04,"Larsen Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 dxe5,,,, -B04,"Alburt Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6,,,, -B04,"Keres Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 Nb6 6.Bb3 Bg7 7.a4,,,, -B04,"Karpov Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.c4 Nb6 6.h3 Bg7 8.Be2,,,, -B04,"Schmid Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Nb6,,,, -B05,B05,1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4,,,, -B05,"Flohr Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 c6,,,, -B05,"Alekhine Variation, Alekhine",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.c4,,,, -B06,Pirc; Robatsch; Modern; King Pawn Fianchetto; B06,1.e4 g6,,,, -B06,"Monkey's Bum, Pirc",1.e4 g6 2.Bc4 Bg7 3.Qf3 e6 4.d4,,,, -B06,Bishop Attack,1.e4 g6 2.d4 Bg7 3.Bc4,,,, -B06,Buecker Gambit,1.e4 g6 2.d4 Bg7 3.Bc4 b5,,,, -B06,Westermann Gambit,1.e4 g6 2.d4 Bg7 3.Bd2,,,, -B06,Wind Gambit,1.e4 g6 2.d4 Bg7 3.Bd3,,,, -B06,Three Pawns Attack,1.e4 g6 2.d4 Bg7 3.f4,,,, -B06,"Pterodactyl, Pirc",1.e4 g6 2.d4 Bg7 3.Nc3 c5,,,, -B06,"Gurgenidze Defense, Modern Defense",1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.f4 d5 5.e5 h5,,,, -B06,"Mittenberger Gambit, Modern Defense",1.e4 g6 2.d4 Bg7 3.Nc3 d5,,,, -B06,Anti-Modern,1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Bc4 c6 5.Qe2,,,, -B06,Pseudo-Austrian Attack,1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4,,,, -B06,"Two Knight Variation, Modern Defense",1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3,,,, -B06,"Suttles Variation, Modern Defense",1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 c6,,,, -B06,"Mongredien Defense, Pirc",1.e4 g6 2.d4 Bg7 3.Nf3 b6,,,, -B06,"Geller's System, Modern Defense",1.e4 g6 2.d4 Bg7 3.Nf3 d6 3.c3,,,, -B06,"Rossolimo Variation, Modern Defense",1.e4 g6 2.d4 Bg7 3.Nf3 d6 3.c4 Bg4,,,, -B06,Accelerated Gurgenidze,1.e4 g6 2.d4 Bg7 3.Nf3 d6 3.Nc3 c6,,,, -B06,"Small Center Variation, Pirc",1.e4 g6 2.d4 Bg7 3.Nf3 d6 3.Nc3 e6,,,, -B06,"Fianchetto Gambit, Modern Defense",1.e4 g6 2.d4 f5,,,, -B06,Norwegian Defense,1.e4 g6 2.d4 Nf6,,,, -B06,Masur Gambit,1.e4 g6 2.d4 Nh6 3.Nc3 f5 4.Bxh6 Bxh6 5.exf5 O-O,,,, -B07,B07,1.e4 d6,,,, -B07,"Maroczy Defense, Pirc",1.e4 d6 2.d4 e5,,,, -B07,"Philidor Gambit, Pirc",1.e4 d6 2.d4 e5 3.dxe5 Bd7,,,, -B07,Small Center Defense,1.e4 d6 2.d4 e6,,,, -B07,"Balogh Defense, Pirc",1.e4 d6 2.d4 f5,,,, -B07,Pirc Defense,1.e4 d6 2.d4 Nf6,,,, -B07,"Lion's Jaw, Pirc",1.e4 d6 2.d4 Nf6 3.f3,,,, -B07,Czech Defense,1.e4 d6 2.d4 Nf6 3.Nc3 c6,,,, -B07,Pirc; Ufimtsev; Antal Defense,1.e4 d6 2.d4 Nf6 3.Nc3 g6,,,, -B07,"Kholmov System, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bc4,,,, -B07,"Classical System, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be2,,,, -B07,"Chinese Variation, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be2 Bg7 5.g4,,,, -B07,"Bayonet Attack, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be2 Bg7 5.h4,,,, -B07,"Sveshnikov-Jansa Attack, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.h3,,,, -B07,150 Attack,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.Qd2,,,, -B07,"Panov; Opatijav; Byrne Variation, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bg5,,,, -B07,Anti-Philidor,1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.f4,,,, -B07,"Roscher Gambit, Pirc",1.e4 d6 2.d4 Nf6 3.Nf3,,,, -B08,B08,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3,,,, -B08,"Two Knights System, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7��,,,, -B08,"Quiet System, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2,,,, -B08,"Parma Defense, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Bg4,,,, -B08,"Czech Defense, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6,,,, -B08,"Chigorin Line, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Nc6,,,, -B08,"Schlechter Variation, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.h3,,,, -B09,"Austrian Attack, Pirc; B09",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4,,,, -B09,"Ljubojevic Variation, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Bc4,,,, -B09,"Austrian; Yugoslav Defense, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3,,,, -B09,"Dragon Formation, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 c5,,,, -B09,"Weiss Variation, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3,,,, -B09,"Kurajica Variation, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Be3,,,, -B09,"Unzicker Attack, Pirc",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5,,,, -B10,Caro-Kann Defense; B10,1.e4 c6��,,,, -B10,"Hillbilly Attack, Caro-Kann",1.e4 c6 2.Bc4,,,, -B10,"Modern; English Variation, Accelerated Panov; Caro-Kann",1.e4 c6 2.c4,,,, -B10,"Breyer Variation, Caro-Kann",1.e4 c6 2.d3,,,, -B10,"Stein Attack, Caro-Kann",1.e4 c6 2.d3 d5 3.Nd2 g6 4.g3 Bg7 5.Bg2 e5 6.Ngf3 Ne7 7.O-O O-O 8.b4,,,, -B10,"Massachussets Defense, Caro-Kann",1.e4 c6 2.d4 f5,,,, -B10,"Masi Variation, Caro-Kann",1.e4 c6 2.d4 Nf6,,,, -B10,"Scorpion-Horus Gambit, Caro-Kann",1.e4 c6 2.Nc3 d5 3.d3 dxe4 4.Bg5,,,, -B10,"Goldman Variation, Caro",1.e4 c6 2.Nc3 d5 3.Qf3,,,, -B10,"Two Knights Variation, Caro",1.e4 c6 2.Nf3 d5 3.Nc3,,,, -B11,B11,1.e4 c6 2.Nc3,,,, -B11,"Two Knights Attack, Caro Kann",1.e4 c6 2.Nc3 d5 3.Nf3,,,, -B11,"Mindeno Variation, Caro-Kann",1.e4 c6 2.Nc3 d5 3.Nf3 Bg4,,,, -B11,"Retreat Line, Mindeno Variation, Caro-Kann",1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bh5,,,, -B12,B12,1.e4 c6 2.d4,,,, -B12,"Landau Gambit, Caro-Kann",1.e4 c6 2.d4 d5 3.Bd3 Nf6 4.e5 Nfd7 6.e6,,,, -B12,"Mieses Gambit, Caro",1.e4 c6 2.d4 d5 3.Be3,,,, -B12,"Diemer-Duhm Gambit, Caro",1.e4 c6 2.d4 d5 3.c4,,,, -B12,"Advance Variation, Caro",1.e4 c6 2.d4 d5 3.e5��,,,, -B12,"Prins Attack, Caro-Kann",1.e4 c6 2.d4 d5 3.e5 Bf5 4.b4,,,, -B12,"Bayonet Variation, Caro",1.e4 c6 2.d4 d5 3.e5 Bf5 4.g4,,,, -B12,"Tal Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.e5 Bf5 4.h4,,,, -B12,"Van der Wiel Attack, Caro-Kann",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3,,,, -B12,"Dreyev Defense, Caro-Kann",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 Qb6,,,, -B12,"Bronstein Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Ne2,,,, -B12,"Short Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3,,,, -B12,"Botvinnik-Carls Defense, Caro-Kann",1.e4 c6 2.d4 d5 3.e5 c5,,,, -B12,"Maroczy Variation, Caro",1.e4 c6 2.d4 d5 3.f3,,,, -B12,"Fantasy; Lilienfisch Variation, Caro",1.e4 c6 2.d4 d5 3.f3,,,, -B12,"Maroczy Gambit, Caro-Kann",1.e4 c6 2.d4 d5 3.f3 dxe4 4.fxe4 e5 5.Nf3 exd4 6.Bc4,,,, -B12,"Modern Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.Nd2,,,, -B12,New Caro-Kann,1.e4 c6 2.d4 d5 3.Nd2 g6,,,, -B12,"Edinburgh Variation, Caro",1.e4 c6 2.d4 d5 3.Nd2 Qb6,,,, -B12,"Ulysses Gambit, Caro",1.e4 c6 2.d4 d5 3.Nf3 dxe4 4.Ng5,,,, -B12,"De Bruycker Defense, Caro",1.e4 c6 2.d4 Na6,,,, -B12,"Hector Gambit, Caro",1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Ng5,,,, -B13,"Exchange Variation, Caro; B13",1.e4 c6 2.d4 d5 3.exd5,,,, -B13,"Rubinstein Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.exd5 cxd3 4.Bd3 Nc6 5.c3 Nf6 6.Bf4,,,, -B13,Panov-Botvinnik; Gunderam Attack,1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4,,,, -B14,B14,1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3,,,, -B14,"Carlsbad Line, Caro-Kann",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 e6,,,, -B14,"Czerniak Line, Caro-Kann",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 Qa5,,,, -B14,"Reifir-Spielmann Line, Caro-Kann",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 Qb6,,,, -B15,B15,1.e4 c6 2.d4 d5 3.Nc3,,,, -B15,"Gurgenidze Variation, Caro",1.e4 c6 2.d4 d5 3.Nc3 b5,,,, -B15,"Von Hennig Gambit, Caro",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Bc4,,,, -B15,"Milner-Barry Gambit, Caro; Rasa-Studier Gambit",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.f3,,,, -B15,"Knight Variation, Caro",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6,,,, -B15,"Tarrasch (Alekhine) Gambit, Caro",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Bd3,,,, -B15,"Tartakower Variation, Caro",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6,,,, -B15,"Forgacs Variation, Caro Kann",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4,,,, -B15,"Gurgenidze System, Caro-Kann",1.e4 c6 2.d4 d5 3.Nc3 g6,,,, -B15,"Gurgenidze Variation, Caro",1.e4 c6 2.d4 d5 3.Nc3 g6 4.e5 Bg7 5.f4 h5,,,, -B15,"Campomanes Attack, Caro",1.e4 c6 2.d4 d5 3.Nc3 Nf6,,,, -B16,"Finnish Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 h6,,,, -B16,"Nimzovich; Bronstein-Larsen, Caro; B16",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6,,,, -B17,"Karpov Variation, Caro-Kann; B17",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7,,,, -B17,"Smyslov Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6,,,, -B17,"Tiviakov-Fischer Attack, Caro-Kann",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Nxf6+ Nxf6,,,, -B17,"Kasparov Attack, Caro-Kann",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Ng3,,,, -B17,"Ivanchuk Defense, Caro Kann",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Ng5 Ndf6,,,, -B18,"Classical Variation, Caro; B18",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5,,,, -B18,"Flohr Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nh3,,,, -B19,B19,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3,,,, -B19,"Seirawan Variation, Caro-Kann",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.e5 Bh7 9.Bd3 Bxd3 10.Qxd3,,,, -B20,Sicilian Defense; B20,1.e4 c5�,,,, -B20,"Mengarini Gambit, Sicilian",1.e4 c5 2.a3��,,,, -B20,"Mengarini Gambit, Sicilian",1.e4 c5 2.a3 Nc6 3.b4,,,, -B20,"Snyder Variation, Sicilian",1.e4 c5 2.b3,,,, -B20,"Queen Fianchetto Variation, Sicilian",1.e4 c5 2.b3 b6,,,, -B20,"Wing Gambit, Sicilian",1.e4 c5 2.b4,,,, -B20,"Marshall Variation, Sicilian",1.e4 c5 2.b4 cxb4 3.a3��,,,, -B20,"Wing; Carlsbad Variation, Sicilian",1.e4 c5 2.b4 cxb4 3.a3 bxa3,,,, -B20,"Marienbad Variation, Sicilian",1.e4 c5 2.b4 cxb4 3.a3 d5 4.exd5 Qxd5 5.Bb2,,,, -B20,"Abrahams Variation, Sicilian Wing Gambit",1.e4 c5 2.b4 cxb4 3.Bb2,,,, -B20,"Santasiere Wing Gambit, Sicilian",1.e4 c5 2.b4 cxb4 3.c4,,,, -B20,"Bowlder Attack, Sicilian",1.e4 c5 2.Bc4,,,, -B20,Slow Sicilian,1.e4 c5 2.Be2,,,, -B20,"Staunton-Cochrane Variation, Sicilian",1.e4 c5 2.c4��,,,, -B20,"Gloria Variation, Sicilian",1.e4 c5 2.c4 d6 3.Nc3 Nc6 4.g3 h5,,,, -B20,"Chameleon Variation, Sicilian",1.e4 c5 2.d3,,,, -B20,"Big Clamp Variation, Sicilian",1.e4 c5 2.d3 Nc6 3.c3 d6 4.f4,,,, -B20,Sicilian Center Game,1.e4 c5 2.d4 cxd4,,,, -B20,"Smith-Morra; Fleissig Gambit, Sic",1.e4 c5 2.d4 cxd4 3.c3,,,, -B20,"Rivadavia Gambit, Sicilian",1.e4 c5 2.d4 cxd4 3.c3,,,, -B20,"Push Variation, Smith-Morra Gambit, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 d3,,,, -B20,"Dubois Variation, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 d3 4.c4,,,, -B20,"Scandanavian Formation, Smith-Morra, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 d5,,,, -B20,"Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3,,,, -B20,"Chicago Defense, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Bc4 e6 6.Nf3 Nf6 7.O-O a6,,,, -B20,"Taimanov Formation, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Bc4 a6 6.Nf3 Ne7,,,, -B20,"Kan Formation, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Nf3 a6,,,, -B20,"Fianchetto Defense, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Nf3 g6,,,, -B20,"Classical Formation, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 a6 7.O-O Nf6,,,, -B20,"Scheveningen Formation, Smith-Morra Accepted",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6,,,, -B20,"Paulsen Formation, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6,,,, -B20,"Morphy Defense Deferred, Smith-Morra Accepted",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6 7.O-O b5 8.Bb3 Bc5,,,, -B20,"Larsen Defense, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6 7.O-O Qc7 8.Qe2 Bd6,,,, -B20,"Pin Defense, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4,,,, -B20,"Morphy Defense, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bc5,,,, -B20,"Sozin Formation, Smith-Morra Accepted, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 d6 7.O-O a6 8.Qe2 b5,,,, -B20,"Center Formation, Smith-Morra Declined, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 e5,,,, -B20,"Alapin Formation, Smith-Morra Declined, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 Nf6,,,, -B20,"Wing Formation, Smith-Morra Declined, Sicilian",1.e4 c5 2.d4 cxd4 3.c3 Qa5,,,, -B20,"Halasz Gambit, Sicilian",1.e4 c5 2.d4 cxd4 3.f4,,,, -B20,"Morphy Gambit, Sicilian",1.e4 c5 2.d4 cxd4 3.Nf3,,,, -B20,"Andreaschek Gambit, Sicilian",1.e4 c5 2.d4 cxd4 3.Nf3 e5 4.c3,,,, -B20,"Steinitz; Tartakower, Lasker-Dunne Variation, Sicilian",1.e4 c5 2.g3,,,, -B20,"Myers Attack, Sicilian",1.e4 c5 2.h4,,,, -B20,King David's Opening,1.e4 c5 2.Ke2,,,, -B20,"Keres; Billium Attack, Sicilian; Chameleon",1.e4 c5 2.Ne2,,,, -B20,"Brick Variation, Sicilian",1.e4 c5 2.Nh3,,,, -B21,"Larsen-Santasiere (McDonnell Attack) Variation, Sicilian; B21",1.e4 c5 2.f4,,,, -B21,"Tal Gambit, Sicilian",1.e4 c5 2.f4 d5 3.exd5 Nf6,,,, -B22,"Alapin; Sveshnikov Var, Sicilian; B22",1.e4 c5 2.c3,,,, -B22,"Barmen Defense, Sicilian",1.e4 c5 2.c3 d5 3.exd5 Qxd5,,,, -B22,"Sherzer Variation, Sicilian",1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 e6 5.Nf3 Nc6,,,, -B22,"Stoltz Attack, Sicilian",1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Bc4 Nb6 6.Bb3,,,, -B23,"Closed; Chigorin Variation, Sicilian; B23",1.e4 c5 2.Nc3,,,, -B23,"Grand Prix Variation, Sicilian",1.e4 c5 2.Nc3 d6 3.f4,,,, -B23,"Marshall Gambit, Sicilian",1.e4 c5 2.Nc3 e6 3.d4 d5,,,, -B23,"Korchnoi Defense, Sicilian",1.e4 c5 2.Nc3 e6 3.g3 d5,,,, -B23,Traditional Closed Sicilian,1.e4 c5 2.Nc3 Nc6,,,, -B23,"Portland Attack, Sicilian",1.e4 c5 2.Nc3 Nc6 3.d3 g6 4.g4,,,, -B23,"Vinken System, Sicilian; Grand Prix Attack",1.e4 c5 2.Nc3 Nc6 3.f4,,,, -B23,"Schofman Variation, Sicilian",1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bc4 e6 6.f5,,,, -B23,Chameleon Sicilian,1.e4 c5 2.Nc3 Nc6 3.Nge2,,,, -B24,"Fianchetto Variation, Sicilian Closed; B24",1.e4 c5 2.Nc3 Nc6 3.g3,,,, -B25,B25,1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6,,,, -B25,"Botvinnik Defense, Sicilian Closed",1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5,,,, -B25,"Edge Variation, Sicilian Closed",1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5 7.Nh3 Nge7,,,, -B26,B26,1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3,,,, -B27,B27,1.e4 c5 2.Nf3,,,, -B27,"Polish Gambit, Sicilian",1.e4 c5 2.Nf3 b5,,,, -B27,"Katalimov Variation, Sicilian",1.e4 c5 2.Nf3 b6,,,, -B27,"Jalalabad Variation, Sicilian",1.e4 c5 2.Nf3 e5,,,, -B27,"Brussels Gambit, Sicilian",1.e4 c5 2.Nf3 f5,,,, -B27,"Double-Dutch Gambit, Sicilian",1.e4 c5 2.Nf3 f5 3.exf5 Nh6,,,, -B27,"Hyperaccelerated Dragon, Sicilian",1.e4 c5 2.Nf3 g6,,,, -B27,"Action Extension, Sicilian",1.e4 c5 2.Nf3 g6 3.c4 Bh6,,,, -B27,"Hyperaccelerated Pterodactyl, Sic",1.e4 c5 2.Nf3 g6 3.d4 Bg7,,,, -B27,"Frederico Variation, Sicilian",1.e4 c5 2.Nf3 g6 3.d4 f5,,,, -B27,Sicilian Fred,1.e4 c5 2.Nf3 g6 3.d4 f5,,,, -B27,"Buecker Variation, Sicilian",1.e4 c5 2.Nf3 h6,,,, -B27,"Mongoose Variation, Sicilian",1.e4 c5 2.Nf3 Qa5,,,, -B27,"Althouse; Stiletto Variation, Sicilian",1.e4 c5 2.Nf3 Qa5,,,, -B27,"Accelerated Paulsen, Sicilian",1.e4 c5 2.Nf3 Qc7,,,, -B27,"Quinteros Variation, Sicilian",1.e4 c5 2.Nf3 Qc7,,,, -B28,"O'Kelly Variation, Sicilian; B28",1.e4 c5 2.Nf3 a6,,,, -B28,"Kieseritzky System, Sicilian",1.e4 c5 2.Nf3 a6 3.b3,,,, -B28,"Wing Gambit, Sicilian",1.e4 c5 2.Nf3 a6 3.b4,,,, -B28,"Aronin System, Sicilian",1.e4 c5 2.Nf3 a6 3.Be2,,,, -B28,"Venice System, Sicilian",1.e4 c5 2.Nf3 a6 3.c3,,,, -B28,"Ljubojevic Line, Sicilian",1.e4 c5 2.Nf3 a6 3.c3 b5,,,, -B28,"Gambit Line, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.c3 d5 4.exd5 Nf6,,,, -B28,"Steiner Line, Sicilian",1.e4 c5 2.Nf3 a6 3.c3 d6,,,, -B28,"Barcza Line, Sicilian",1.e4 c5 2.Nf3 a6 3.c3 Nf6,,,, -B28,"Maroczy Bind, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.c4,,,, -B28,"Robatsch Line, Sicilian",1.e4 c5 2.Nf3 a6 3.c4 d6,,,, -B28,"Paulsen Line, Sicilian",1.e4 c5 2.Nf3 a6 3.c4 e6,,,, -B28,"Geller Line, Sicilian",1.e4 c5 2.Nf3 a6 3.c4 Nc6 4.d4 cxd4 5.Nxd4 e5,,,, -B28,"Quiet System, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.d3,,,, -B28,"Normal System, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.d4,,,, -B28,"Cortlever Gambit, Sicilian",1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Bc4,,,, -B28,"Smith-Morra Line, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.c3,,,, -B28,"Taimanov Line, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Nxd4 e5,,,, -B28,"Kan Line, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Nxd4 e6,,,, -B28,"Zagorovsky Line, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Qxd4,,,, -B28,"Reti System, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.g3,,,, -B28,"Yerevan System, O'Kelly Sicilian",1.e4 c5 2.Nf3 a6 3.Nc3,,,, -B29,"Nimzovich; Rubinstein Var, Sicilian; B29",1.e4 c5 2.Nf3 Nf6,,,, -B29,"Advance Variation, Sicilian",1.e4 c5 2.Nf3 Nf6 3.e5,,,, -B30,Old Sicilian,1.e4 c5 2.Nf3 Nc6,,,, -B30,"Rossolimo (Nezmetdinov) Variation, Sicilian; B30",1.e4 c5 2.Nf3 Nc6 3.Bb5,,,, -B31,B31,1.e4 c5 2.Nf3 Nc6 3.Bb5 g6,,,, -B31,"Gufeld Gambit, Sicilian",1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 e5 6.d4,,,, -B31,"Lutikov Gambit, Sicilian",1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.d4,,,, -B31,"Gurgenidze Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.b4,,,, -B31,"San Francisco Gambit, Sicilian",1.e4 c5 2.Nf3 Nc6 3.Bb5 Na5 4.b4,,,, -B32,B32,1.e4 c5 2.Nf3 Nc6 3.d4,,,, -B32,"Nimzovich Variation, Sicilian; Nimzo-American Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 d5,,,, -B32,"Bourdonnais; Lowenthal Var, Sic",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5,,,, -B32,"Kalashnikov Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6,,,, -B32,"Retreat Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nf3,,,, -B32,"Godiva Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6,,,, -B32,"Flohr Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7,,,, -B33,B33,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6,,,, -B33,"Four Knights Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3,,,, -B33,"Lasker-Pelikan Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5,,,, -B33,"Pelikan Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6,,,, -B33,"Chelyabinsk Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5,,,, -B33,"Sveshnikov Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 f5,,,, -B33,"Bird Variation, Siclian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 Be6,,,, -B34,Accelerated Dragon; Fianchetto Var; B34,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6,,,, -B35,B35,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4,,,, -B36,"Maroczy Bind, Sicilian; B36",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4,,,, -B36,"Gurgenidze Variation, Sicilian",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6,,,, -B37,B37,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7,,,, -B38,B38,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3,,,, -B39,"Breyer Variation, Sicilian; B39",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 Ng4,,,, -B40,"French Variation, Sicilian; B40",1.e4 c5 2.Nf3 e6,,,, -B40,"Wing Gambit Deferred, Sicilian",1.e4 c5 2.Nf3 e6 3.b4,,,, -B40,"Kramnik Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.c4,,,, -B40,"Gaw-Paw Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Qb6,,,, -B40,"Kveinis Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Qb6,,,, -B41,B41,1.e4 c5 2.Nf3 e6 3.d4,,,, -B41,"Accelerated Wimpy Variation, Sic",1.e4 c5 2.Nf3 e6 3.d4 cxd4,,,, -B41,"Paulsen; Kan Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6,,,, -B41,"Reti Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4,,,, -B41,"Hedgehog Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 g6,,,, -B41,"Bronstein Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 Nf6 6.Nc3 Bb4 7.Bd3 Nc6,,,, -B41,"Anderssen; Counterattack Var, Sic",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6,,,, -B41,Pin Variation; Sicilian CounterAttack,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4,,,, -B41,"Jaffe Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.Bd3 e5,,,, -B41,"Koch Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.e5,,,, -B41,"Marshall Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 d5,,,, -B42,B42,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3,,,, -B42,"Polugaevsky Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5,,,, -B42,"Swiss Cheese Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6,,,, -B43,B43,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3,,,, -B44,"Taimanov; Bastrikov, Paulsen Variation, Sicilian; B44",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6,,,, -B44,"Szen Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5,,,, -B44,"Gary Gambit, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 d5,,,, -B45,B45,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3,,,, -B45,"Paulsen Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bb4,,,, -B45,"American Attack, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bb4 7.Nd6+,,,, -B45,"Four Knights Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6,,,, -B45,"Cobra Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bc5,,,, -B46,B46,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6,,,, -B46,"Taimanov Variation, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7,,,, -B47,"Bastrikov Variation, Sicilian; B47",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7,,,, -B47,"Ponomariov Gambit, Sicilian",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Ndb5 Qb8 7.Be3 a6 8.Bb6,,,, -B48,B48,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3,,,, -B49,B49,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2,,,, -B50,"Modern Variation, Sicilian; B50",1.e4 c5 2.Nf3 d6,,,, -B50,"Kopec System, Sicilian",1.e4 c5 2.Nf3 d6 3.Bd3,,,, -B50,"Delayed Alapin, Sicilian",1.e4 c5 2.Nf3 d6 3.c3,,,, -B50,Basman-Palatnik Gambit,1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2 Nc6 5.d4 cxd4 6.cxd4 Nxe4,,,, -B50,"Kotov Gambit, Sicilian",1.e4 c5 2.Nf3 d6 3.g3 b5,,,, -B51,"Wing Gambit Deferred, Sicilian",1.e4 c5 2.Nf3 d6 3.b4,,,, -B51,"Moscow Variation, Sicilian; Canal Attack; B51",1.e4 c5 2.Nf3 d6 3.Bb5+,,,, -B51,"Moscow Gambit, Sicilian",1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.c3 a6 6.Bxc6 Bxc6 7.Re1 Nf6 8.d4 Bxe4 9.Bg5,,,, -B51,"Dorfman Gambit, Sicilian",1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Qe2 g6 6.e5,,,, -B52,"Main Line, Canal Attack, Sicilian; B52",1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7��,,,, -B52,"Bronstein (Haag) Gambit, Sicilian",1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.d4,,,, -B53,B53,1.e4 c5 2.Nf3 d6 3.d4,,,, -B53,"Tartakower Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.c3,,,, -B53,"Chekhover Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4,,,, -B53,"Zaitsev Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Qd7,,,, -B53,"Lazy Knight Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 Nd7,,,, -B53,"Cortlever Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.dxc5 Nxe4 5.cxd6,,,, -B54,B54,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4,,,, -B55,B55,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6,,,, -B55,"Ginsberg Gambit, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Bc4,,,, -B55,"Moscow (Prins) Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3,,,, -B55,"Venice Attack, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Bb5+,,,, -B56,B56,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3,,,, -B56,"Kupreichik Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bd7,,,, -B56,"Venice Attack, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Bb5+,,,, -B56,"Classical Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6,,,, -B56,"Yates Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bd3,,,, -B56,"Spielmann Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nde2,,,, -B57,"Sozin; Velimirovic Attack, Sicilian; B57",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4,,,, -B57,"Anti-Sozin Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6,,,, -B58,B58,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2,,,, -B58,"Boleslavsky Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5,,,, -B58,"Louma Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nxc6,,,, -B58,"Fianchetto Variation, Richter-Rauzer Sicilizn",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.g3,,,, -B59,B59,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nb3,,,, -B60,"Richter-Rauzer Variation, Sicilian; B60",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5,,,, -B60,"Dragon Variation, Richter-Rauzer Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 g6,,,, -B61,B61,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Qd2,,,, -B62,B62,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6,,,, -B62,"Margate (Vitolins) Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Bb5,,,, -B62,"Podebrady Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Nb3,,,, -B62,"Exchange Variation, Richter-Rauzer Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Nxc6,,,, -B63,"Rauzer Variation, Sicilian; B63",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2,,,, -B63,"Ivanov Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Qb6,,,, -B64,B64,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4,,,, -B65,B65,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4 Nxd4 10.Qxd4,,,, -B66,B66,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6,,,, -B67,B67,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7,,,, -B68,B68,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 Be7,,,, -B69,B69,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 Be7 10.Nf3 b5 11.Bxf6,,,, -B70,"Dragon Variation, Sicilian; B70",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6,,,, -B70,"Alekhine Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Nb3,,,, -B70,"Fianchetto Variation, Sicilian Dragon",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3,,,, -B71,"Levenfish Variation, Sicilian; B71",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4,,,, -B72,B72,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3,,,, -B72,"Nottingham Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.Nb3,,,, -B72,"Amsterdam (Battery) Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.Qd2,,,, -B72,"Grigoriev Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.Qd2 O-O 9.O-O-O,,,, -B73,B73,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O,,,, -B73,"Zollner Gambit, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.f4 Qb6,,,, -B74,B74,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Nb3,,,, -B74,"Alekhine Line, Sicilian Dragon",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Nb3 a5,,,, -B74,"Maroczy Line, Sicilian Dragon",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Nb3 Be6 10.f4 Na5,,,, -B74,"Tartakower Line, Sicilian Dragon",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Nb3 Be6 10.f4 Qc8,,,, -B75,B75,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3,,,, -B76,"Yugoslav Attack, Sicilian Dragon; B76",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O,,,, -B76,"Panov Variation, Sicilian Dragon",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.g4,,,, -B77,B77,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4,,,, -B77,"Sosonko Variation, Sicilian Dragon",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Nd7,,,, -B77,"Czerniak Variation, Sicilian Dragon",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Nxd4 10.Bxe4,,,, -B78,B78,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O,,,, -B79,B79,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Qa5,,,, -B80,"Scheveingen Variation, Sicilian; B80",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6,,,, -B80,"Vitolins Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bb5+,,,, -B80,"English Attack, Scheveningen Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.f3,,,, -B80,"Fianchetto Variation, Scheveningen Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3,,,, -B81,"Delayed Keres Attack, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.g4,,,, -B81,"Perenyi Gambit, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.g4 e5 8.Nf5 g6 9.g5,,,, -B81,"Keres; Panov Variation, Sicilian; B81",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4,,,, -B82,"Matanovic Attack, Sicilian; B82",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.f4,,,, -B82,"Tal Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.f4 Nc6 7.Be3 Be7 8.Qf3,,,, -B83,"Scheveningen Variation, Sicilian; B83",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2��,,,, -B84,"Modern Paulsen, Sicilian; B84",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6,,,, -B85,B85,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Be7,,,, -B85,"Paulsen Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Qc7 8.f4 Nc6,,,, -B86,"Fischer Attack, Sozin Attack, Sicilian; B86",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4,,,, -B87,"Flank Variation, Sicilian; B87",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3 b5,,,, -B88,"Leonhardt Variation, Sicilian; B88",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6,,,, -B89,B89,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Be3��,,,, -B89,"Sherbakov Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Be3 Be7 8.Bb3 O-O 9.O-O Na5 10.f4 b6,,,, -B89,"Velimirovic Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Be3 Be7 8.Qe2,,,, -B90,"Najdorf Variation, Sicilian; B90",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6,,,, -B90,"Lipnitzky Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4,,,, -B90,"Byrne Variation, Sicilian; English Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3,,,, -B90,"Anti-English, Najdorf Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 Ng4,,,, -B90,"Adams Attack, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3,,,, -B90,"Freak Attack, Siicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Rg1,,,, -B91,"Zagreb Variation, Sicilian; B91",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3,,,, -B92,"Opocensky Variation, Sicilian; B92",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2,,,, -B92,"Opocensky Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5,,,, -B93,"Amsterdam Variation, Sicilian; B93",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4,,,, -B94,B94,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5,,,, -B95,B95,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6,,,, -B96,B96,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4,,,, -B96,Polugaevsky; Accelerated Najdorf,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5,,,, -B96,"Simagin Line, Najdorf Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5 8.e5 dxe5 9.fxe5 Qc7 10.Qe2,,,, -B97,"Poisoned Pawn Variation, Najdorf Sicilian; B97",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6,,,, -B97,"Poisoned Pawn Variation, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2,,,, -B97,"Poisoned Pawn Accepted, Najdorf Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 Qxb2,,,, -B98,B98,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7,,,, -B98,"Argenitne; Goteborg Var, Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 9.Bh4 g5,,,, -B98,"Browne Variation, Najdorf Sicilian",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 9.Bh4 Qc7,,,, -B99,B99,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.O-O-O Nbd7,,,, -C00,Franco-Sicilian Defense,1.d4 e6 2.c4 c5��,,,, -C00,French Defense; C00,1.e4 e6,,,, -C00,"Reti (Horwitz) Variation, French",1.e4 e6 2.b3,,,, -C00,"Papa-Ticulat Gambit, French",1.e4 e6 2.b3 d5 3.Bb2,,,, -C00,"Banzai-Leong Gambit, French",1.e4 e6 2.b4,,,, -C00,Pinova Gambit,1.e4 e6 2.b4 Bxb4 3.e5,,,, -C00,"Bird Invitation, French",1.e4 e6 2.Bb5,,,, -C00,"Orthoschapp Variation, French",1.e4 e6 2.c4 d5 3.cxd5 exd5 4.Qb3,,,, -C00,"King""s Indian Attack",1.e4 e6 2.d3��,,,, -C00,"Reversed Philidor, French",1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 Nc6 5.Be2,,,, -C00,"Franco-Hiva Gambit, French",1.e4 e6 2.d3 f5,,,, -C00,"Alapin; Witaker Gambit, French",1.e4 e6 2.d4 d5 3.Be3,,,, -C00,"Alapin-Diemer Gambit, French",1.e4 e6 2.d4 d5 3.Be3 dxe4 4.f3,,,, -C00,"Diemer-Duhm Gambit, French",1.e4 e6 2.d4 d5 3.c4,,,, -C00,"Steinitz Attack, French",1.e4 e6 2.e5,,,, -C00,"Bourdonnais (La Bourdonnais) Variation, French",1.e4 e6 2.f4��,,,, -C00,"Reuter Gambit, French",1.e4 e6 2.f4 d5 3.Nf3 dxe4 4.Ng5,,,, -C00,"Reti-Spielmann Attack, French",1.e4 e6 2.g3,,,, -C00,"Queen's Knight, French",1.e4 e6 2.Nc3,,,, -C00,"Pelikan Variation, French",1.e4 e6 2.Nc3 d5 3.f4,,,, -C00,"Two Knight Variation, French",1.e4 e6 2.Nc3 d5 3.Nf3,,,, -C00,"Knight Variation, French",1.e4 e6 2.Nf3,,,, -C00,"Wing Gambit, French",1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4,,,, -C00,"Two Knights Variation, French",1.e4 e6 2.Nf3 d5 3.Nc3,,,, -C00,"Chigorin Variation, French",1.e4 e6 2.Qe2,,,, -C01,C01,1.e4 e6 2.d4,,,, -C01,"Baeuerle Gambit, French",1.e4 e6 2.d4 b5,,,, -C01,"Schlechter Variation, French",1.e4 e6 2.d4 d5 3.Bd3,,,, -C01,"Exchange Variation, French",1.e4 e6 2.d4 d5 3.exd5 exd5,,,, -C01,"Monte Carlo Variation, French",1.e4 e6 2.d4 d5 3.exd5 exd5 4.c4,,,, -C01,"Svenius Variation, French",1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nc3 Nf6 5.Bg5,,,, -C01,"Canal Attack, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.exd5 exd5 5.Bd3 Ne7 6.Qh5,,,, -C01,"Perseus Gambit, French",1.e4 e6 2.d4 d5 3.Nf3,,,, -C01,"Carlson Gambit, French",1.e4 e6 2.d4 d5 3.Nf3 dxe4 4.Ne5,,,, -C01,"Morphy Gambit, French",1.e4 e6 2.d4 d5 3.Nh3,,,, -C01,Hoffman Gambit,1.e4 e6 2.d4 d5 3.Qe2 e5 4.f4 exf4,,,, -C01,"Franco-Hiva Gambit I, French",1.e4 e6 2.d4 f5,,,, -C01,"Mediterranean Defense, French",1.e4 e6 2.d4 Nf6,,,, -C02,"Advance Variation, French; C02",1.e4 e6 2.d4 d5 3.e5,,,, -C02,"Extended Bishop Swap, French",1.e4 e6 2.d4 d5 3.e5 Bd7,,,, -C02,"Advance; Nimzovich; Steinitz Var, Fr",1.e4 e6 2.d4 d5 3.e5 Bd7,,,, -C02,"Frenkel Gambit, French",1.e4 e6 2.d4 d5 3.e5 c5 4.b4,,,, -C02,"Paulsen Attack, French",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3,,,, -C02,"Euwe Variation, French",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7,,,, -C02,"Lputian Variation, French",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 Nh6,,,, -C02,"Milner-Barry Gambit, French",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.Bd3,,,, -C02,"Milner-Barry Gambit, French",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.Bd3 cxd3 7.cxd3 Bd7 8.O-O Nxd4 9.Nxd4,,,, -C02,"Wade Variation, French",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Bd7,,,, -C02,"Nimzovich Variation, French",1.e4 e6 2.d4 d5 3.e5 c5 4.Nf3,,,, -C02,"Ruisdonk Gambit, French",1.e4 e6 2.d4 d5 3.e5 c5 4.Nf3 cxd4 5.Bd3,,,, -C02,"Nimzovich Attack, French",1.e4 e6 2.d4 d5 3.e5 c5 4.Qg4,,,, -C03,"Tarrasch Variation, French; C03",1.e4 e6 2.d4 d5 3.Nd2,,,, -C03,"Morozevich Variation, French",1.e4 e6 2.d4 d5 3.Nd2 Be7,,,, -C03,"Haberditz Variation, French",1.e4 e6 2.d4 d5 3.Nd2 f5,,,, -C04,C04,1.e4 e6 2.d4 d5 3.Nd2 Nc6,,,, -C04,"Guimard Variation, French",1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nfd7,,,, -C04,"Leningrad Variation, French",1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 cxd4 8.cxd4,,,, -C05,C05,1.e4 e6 2.d4 d5 3.Nd2 Nf6,,,, -C06,"Botvinnik Variation, French",1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.e4 Nfd7 5.Bd3 c5 6.c3 b6,,,, -C06,C06,1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3,,,, -C07,Open System Tarrasch French; C07,1.e4 e6 2.d4 d5 3.Nd2 c5,,,, -C07,"Shaposhnikov Gambit, French",1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Nf6,,,, -C07,"Chistiakov Defense, French",1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5,,,, -C08,C08,1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5,,,, -C09,C09,1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6,,,, -C10,"Normal Variation, French; C10",1.e4 e6 2.d4 d5 3.Nc3,,,, -C10,"Marshall Variation, French",1.e4 e6 2.d4 d5 3.Nc3 c5,,,, -C10,"Rubinstein Variation, French",1.e4 e6 2.d4 d5 3.Nc3 dxe4,,,, -C10,"Fort Knox Variation, French",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Bd7 5.Nf3 Bc6,,,, -C10,"Rasa-Studier Gambit, French",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Be3,,,, -C10,"Ellis Gambit, French",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 e5,,,, -C10,"Blackburne Defense, French",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7,,,, -C10,"Capablanca Line, French",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Ne5,,,, -C10,"Frere; Becker; Katilimov, Maric Var, French",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Qd5,,,, -C10,"Svenonius Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.exd5,,,, -C11,"Classical Variation, French; C11",1.e4 e6 2.d4 d5 3.Nc3 Nf6,,,, -C11,"Swiss Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bd3,,,, -C11,"Henneberger Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Be3,,,, -C11,"Burn Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4,,,, -C11,"Steinitz Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5,,,, -C11,"Bradford Attack, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.dxc5 Bxc5 7.Qg4,,,, -C11,"Brodsky-Jones Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.dxc5 Nc6 7.a3 Bxc5 8.Qg4 O-O 9.Nf3 f6,,,, -C11,"Boleslavsky Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3,,,, -C11,"Gledhill Attack, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.Qg4,,,, -C12,C12,1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5,,,, -C12,"McCutcheon Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4,,,, -C12,"Olland (Dutch) Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bc1,,,, -C12,"Lasker Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Bxc3,,,, -C12,"Duras Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Bxc3 7.bxc3 Ne4 8.Qg4 Kf8 9.Bc1,,,, -C12,"Tartakower Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Nfd7,,,, -C12,"Janowski Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Be3,,,, -C12,"Bernstein Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bh4,,,, -C12,"Chigorin Variation, French�",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.exf6,,,, -C12,"Grigoriev Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.exf6 hxg5 7.fxg7 Rg8 8.h4 gxh4 9.Qg4,,,, -C12,"Wolf Gambit, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.Nge2,,,, -C13,"Vistaneckis (Nimzovich) Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Ng8,,,, -C13,"Frankfurt Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Ng8 6.Be3 b6,,,, -C13,C13,1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4�,,,, -C14,C14,1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7,,,, -C14,"Anderssen (Richter) Attack, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.Bxf6,,,, -C14,"Tartakower Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Ne4,,,, -C14,"Classical Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7,,,, -C14,"Tarrasch Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Bd3,,,, -C14,"Steinitz Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.f4,,,, -C14,"Alapin Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Nb5,,,, -C14,"Rubinstein Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Qd2,,,, -C14,"Pollock Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Qg4,,,, -C14,"Chatard-Alekhine; Albin Attack, Fr",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4,,,, -C14,"Maroczy Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 a6,,,, -C14,"Albin-Chatard Gambit, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 Bxg5 7.hxg5 Qxg5,,,, -C14,"Breyer Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 c5,,,, -C14,"Teichmann Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 f6,,,, -C14,"Spielmann Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 O-O,,,, -C15,"Winawer Variation, French; C15",1.e4 e6 2.d4 d5 3.Nc3 Bb4��,,,, -C15,"Winckelmann-Riemer Gambit, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.a3,,,, -C15,"Fingerslip Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd2,,,, -C15,"Kunin Double Gambit, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd2 dxe4 5.Qg4 Qxd4,,,, -C15,"Schwarz's Line, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd2 Ne7 5.Nb1,,,, -C15,"Kondratiyev Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd3 c5 5.exd5 Qxd5 6.Bd2,,,, -C15,"Delayed Exchange Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.exd5,,,, -C15,"Alekhine (Maroczy) Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2,,,, -C15,"Kan Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 dxe4 5.a3 Bxc3+ 6.Nxc3 Nc6,,,, -C16,C16,1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5,,,, -C16,"Petrosian Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Qd7,,,, -C17,C17,1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5,,,, -C17,"Bogoljubow Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2,,,, -C17,"Icelandic Defense, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2 Ne7 6.f4,,,, -C17,"Moscow Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Qg4,,,, -C18,C18,1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3��,,,, -C18,"Swiss (Retreat) Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Ba5,,,, -C18,"Armenian Line, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Ba5 6.b4 cxd4,,,, -C18,"Maroczy-Willis Variation, French",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 cxd4 6.axb4 dxc3,,,, -C19,C19,1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7,,,, -C19,"Poisoned Pawn Variation, French Winawer",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4,,,, -C20,King Pawn Game; C20,1.e4 e5,,,, -C20,Mengarini Opening,1.e4 e5 2.a3,,,, -C20,Portuguese Opening,1.e4 e5 2.Bb5,,,, -C20,Miguel Gambit,1.e4 e5 2.Bb5 Bc5 3.b4,,,, -C20,Tortoise Opening,1.e4 e5 2.Bd3,,,, -C20,Macleod Attack,1.e4 e5 2.c3,,,, -C20,Norwalder Gambit,1.e4 e5 2.c3 d5 3.Qh5 Bd6,,,, -C20,Lasa Gambit,1.e4 e5 2.c3 f5,,,, -C20,Whale Opening,1.e4 e5 2.c4,,,, -C20,Bavarian Gambit,1.e4 e5 2.c4 d5,,,, -C20,Clam Variation; Leonardis Variation,1.e4 e5 2.d3,,,, -C20,Indian Opening,1.e4 e5 2.d3,,,, -C20,Weber Gambit,1.e4 e5 2.d3 d5 3.exd5 c6 4.dxc6 Nxc6,,,, -C20,King's Gambit Reversed�,1.e4 e5 2.d3 f5,,,, -C20,Radisch Gambit,1.e4 e5 2.d3 Nf6 3.f4 Bc5,,,, -C20,King's Head,1.e4 e5 2.f3��,,,, -C20,Walkerling,1.e4 e5 2.f3 Nf6��,,,, -C20,Krejcik Gambit,1.e4 e5 2.f3 Nf6 3.Bc4 Bc5 4.Ne2 Nc6 5.b4,,,, -C20,King's Head Opening,1.e4 e5 2.f3 Nf6 3.Nc3,,,, -C20,Alapin Opening,1.e4 e5 2.Ne2,,,, -C20,Napoleon Attack,1.e4 e5 2.Qf3,,,, -C20,Wayward Queen; Danvers; Parnham,1.e4 e5 2.Qh5,,,, -C20,Mellon Gambit,1.e4 e5 2.Qh5 Nc6 3.Bc4 Nh6 4.d3 g6 5.Qf3 f6 6.Ne2 d5,,,, -C20,Kiddie Countergambit,1.e4 e5 2.Qh5 Nf6,,,, -C21,Center Game; C21,1.e4 e5 2.d4��,,,, -C21,Beyer Gambit,1.e4 e5 2.d4 d5,,,, -C21,Philidor Gambit,1.e4 e5 2.d4 d6 3.dxe5 Bd7,,,, -C21,Center Game Accepted,1.e4 e5 2.d4 exd4,,,, -C21,Von der Lasa Gambit,1.e4 e5 2.d4 exd4 3.Bc4,,,, -C21,"Ross Gambit, Center",1.e4 e5 2.d4 exd4 3.Bd3,,,, -C21,Danish Gambit,1.e4 e5 2.d4 exd4 3.c3,,,, -C21,"Sorensen Defense, Center",1.e4 e5 2.d4 exd4 3.c3 d5,,,, -C21,Danish Gambit Accepted,1.e4 e5 2.d4 exd4 3.c3 dxc3 4.Bc4 cxb2 5.Bxb2,,,, -C21,"Copenhagen Defense, Danish Gambit",1.e4 e5 2.d4 exd4 3.c3 dxc3 4.Bc4 cxb2 5.Bxb2 Bb4+,,,, -C21,"Schlechter Defense, Center",1.e4 e5 2.d4 exd4 3.c3 dxc3 4.Bc4 cxb2 5.Bxb2 d5,,,, -C21,"Classical Defense, Danish Gambit",1.e4 e5 2.d4 exd4 3.c3 dxc3 4.Bc4 cxb2 5.Bxb2 Nf6,,,, -C21,"Chigorin Defense, Danish Gambit",1.e4 e5 2.d4 exd4 3.c3 dxc3 4.Bc4 cxb2 5.Bxb2 Qe7,,,, -C21,"Svenonius Defense, Center",1.e4 e5 2.d4 exd4 3.c3 Ne7,,,, -C21,Halasz-McDonnell Gambit,1.e4 e5 2.d4 exd4 3.f4,,,, -C21,"Crocodile Variation, Center Game",1.e4 e5 2.d4 exd4 3.f4 Bc5 4.Nf3 Nc6 5.c3,,,, -C21,"Lanc-Arnold Gambit, Center",1.e4 e5 2.d4 exd4 3.Nf3 Bc5 4.c3,,,, -C21,"Scippler Gambit, Center",1.e4 e5 2.d4 exd4 3.Nf3 Bc5 4.c3 dxc3 5.Bc4,,,, -C22,C22,1.e4 e5 2.d4 exd4 3.Qxd4,,,, -C22,"Hall Variation, Center",1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qc4,,,, -C22,"Paulsen Attack Variation, Center",1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3��,,,, -C22,"Berger Variation, Center",1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 Nf6��,,,, -C22,"Kupreichik Variation, Center",1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 Nf6 5.Nc3 Bb4 6.Bd2 O-O 7.O-O-O Re8 8.Bc4,,,, -C23,Bishop's Opening; C23,1.e4 e5 2.Bc4,,,, -C23,Anderssen Gambit,1.e4 e5 2.Bc4 b5 3.Bxb5 c6,,,, -C23,Thorold Gambit,1.e4 e5 2.Bc4 b5 3.Bxb5 f5,,,, -C23,"Classical Variation, Bishop; Boi Variation",1.e4 e5 2.Bc4 Bc5��,,,, -C23,"MacDonnell Gambit, Bishop",1.e4 e5 2.Bc4 Bc5 3.b4,,,, -C23,"Labourdonnais-Denker Gambit, Bishop",1.e4 e5 2.Bc4 Bc5 3.b4 Bxb4 4.c3,,,, -C23,"McDonnell Double Gambit, Bishop",1.e4 e5 2.Bc4 Bc5 3.b4 Bxb4 4.f4,,,, -C23,"Philidor Variation, Bishop",1.e4 e5 2.Bc4 Bc5 3.c3,,,, -C23,"Lewis Counter-Gambit, Bishop",1.e4 e5 2.Bc4 Bc5 3.c3 d5,,,, -C23,"Lewis Countergambit, Bishop",1.e4 e5 2.Bc4 Bc5 3.c3 d5 4.Bxd5 Nf6,,,, -C23,"Walker Variation, Bishop",1.e4 e5 2.Bc4 Bc5 3.c3 d5 4.Bxd5 Nf6 5.d4,,,, -C23,"Lewis Gambit, Bishop",1.e4 e5 2.Bc4 Bc5 3.d4,,,, -C23,"Stein Gambit, Bishop",1.e4 e5 2.Bc4 Bc5 3.f4,,,, -C23,"Lopez Variation, Bishop",1.e4 e5 2.Bc4 Bc5 3.Qe2,,,, -C23,"Lopez Gambit, Bishop",1.e4 e5 2.Bc4 Bc5 3.Qe2 Nf6 4.f4,,,, -C23,"Khan Gambit, Bishop",1.e4 e5 2.Bc4 d5,,,, -C23,"King's Gambit Reversed, Bishop",1.e4 e5 2.Bc4 f5,,,, -C23,Calabrese Counter-Gambit,1.e4 e5 2.Bc4 f5,,,, -C23,"Kreijcik Gambit, Bishop",1.e4 e5 2.Bc4 Nf6 3.f3 Bc5 4.Ne2 Nc6 5.b4,,,, -C23,"Greco Gambit, Bishop",1.e4 e5 2.Bc4 Nf6 3.f4,,,, -C23,"Horwitz Gambit, Bishop",1.e4 e5 2.Bc4 Nf6 3.Nc3 b5,,,, -C23,"Blanel Gambit, Bishop",1.e4 e5 2.Bc4 Nf6 3.Nc3 Nxe4,,,, -C23,"Paschmann Gambit, Bishop",1.e4 e5 2.Bc4 Nf6 3.Ne2 Nxe4 4.Nec3,,,, -C23,"Meitner-Mieses Gambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.Bc4 Bc5 4.Qg4 Qf6 5.Nd5,,,, -C23,"Bronstein Gambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.Bc4 Nf6 4.f4 Nxe4 5.Nf3,,,, -C24,"Berlin Defense, Bishop; C24",1.e4 e5 2.Bc4 Nf6��,,,, -C24,"Spielmann Attack, Bishop",1.e4 e5 2.Bc4 Nf6 3.d3 Bc5 4.Nc3,,,, -C24,"Kitchner Folly, Bishop",1.e4 e5 2.Bc4 Nf6 3.d3 Be7 4.Nf3 O-O,,,, -C24,"Vienna Hybrid, Bishop",1.e4 e5 2.Bc4 Nf6 3.d3 Nc6 4.Nc3,,,, -C24,"Hromadka Variation, Bishop",1.e4 e5 2.Bc4 Nf6 3.d3 Nc6 4.Nc3 Bb4 5.Ne2,,,, -C24,"Ponziani Center Gambit, Bishop",1.e4 e5 2.Bc4 Nf6 3.d4�,,,, -C24,"Warsaw Gambit, Bishop",1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.c3,,,, -C24,Urusov; Ouroussoff; Keidansky G,1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3,,,, -C24,"Keidansky Gambit, Bishop",1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 Nxe4 5.Qxd4,,,, -C25,Vienna; Hamppe Opening; C25,1.e4 e5 2.Nc3��,,,, -C25,"Zhuravlev Counter-Gambit, Vienna",1.e4 e5 2.Nc3 Bb4 3.Qg4,,,, -C25,"Zhuraviev Countergambit, Vienna",1.e4 e5 2.Nc3 Bb4 3.Qg4 Nf6,,,, -C25,"Anderssen Defense, Vienna",1.e4 e5 2.Nc3 Bc5,,,, -C25,"Hamppe-Mietner Variation, Vienna",1.e4 e5 2.Nc3 Bc5 3.Na4,,,, -C25,"Giraffe Attack, Vienna",1.e4 e5 2.Nc3 Bc5 3.Qg4,,,, -C25,"Omaha Gambit, Vienna",1.e4 e5 2.Nc3 d6 3.f4,,,, -C25,"Fyfe Gambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.d4,,,, -C25,"Philidor Countergambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.d4 f5,,,, -C25,"Alapin Variation, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4,,,, -C25,Vienna Gambit,1.e4 e5 2.Nc3 Nc6 3.f4,,,, -C25,"Quelle Gambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 Bc5 4.fxe5 d6,,,, -C25,"Steinitz Gambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.d4,,,, -C25,"Fraser-Minckwitz Variation, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.d4 Qh4+ 5.Ke2 b6,,,, -C25,"Zukertort Defense, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.d4 Qh4+ 5.Ke2 d5,,,, -C25,"Paulsen Defense, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.d4 Qh4+ 5.Ke2 d6,,,, -C25,"Soerensen Defense, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.d4 Qh4+ 5.Ke2 g5,,,, -C25,"Knight Variation, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3,,,, -C25,"Cunningham Defense, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3 Be7,,,, -C25,"Hamppe-Muzio Gambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3 g5 5.Bc4 g4 6.O-O,,,, -C25,"Pierce Gambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3 g5 5.d4,,,, -C25,"Hamppe-Allgaier Gambit, Vienna",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3 g5 5.h4 g4 6.Ng5,,,, -C25,Hamppe-Allgaier-Thorold Gambit,1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3 g5 5.h4 g4 6.Ng5 h6 7.Nxf7 Kxf7 8.d4,,,, -C25,"Paulsen Variation, Vienna",1.e4 e5 2.Nc3 Nc6 3.g3,,,, -C25,Mariotti Gambit,1.e4 e5 2.Nc3 Nc6 3.g3 Bc5 4.Bg2 h5 5.Nf3 h4,,,, -C25,"Polluck Gambit, Vienna",1.e4 e5 2.Nc3 Nf6 3.g3 Bc5 4.Bg2 Nc6 5.Nge2 d5 6.exd5,,,, -C25,"Erben Gambit, Vienna",1.e4 e5 2.Nc3 Nf6 3.g3 d5 4.exd5 c6,,,, -C25,"Hamppe Meitner, Vienna",1.e4 e5 2.Nf3 Bc5 3.Na4,,,, -C26,"Falkbeer Variation, Vienna; C26",1.e4 e5 2.Nc3 Nf6,,,, -C26,"Mengarini Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.a3,,,, -C26,"Oxford Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.d3,,,, -C26,"Mieses Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.g3,,,, -C27,"Stanley Variation, Vienna; C27",1.e4 e5 2.Nc3 Nf6 3.Bc4,,,, -C27,"Reversed Spanish, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Bb4,,,, -C27,"Bishop Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Bc5,,,, -C27,"Eifel Gambit, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Bc5 4.Nge2 b5,,,, -C27,"Modern Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4,,,, -C27,"Boden-Kieseritzky Gambit, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Nf3,,,, -C27,"Monster Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Qh5 Nd6 5.Bb3 Be7,,,, -C27,"Alekhine Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Qh5 Nd6 5.Bb3 Be7 6.Nf3 Nc6 7.Nxe5,,,, -C27,"Adams Gambit, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Qh5 Nd6 5.Bb3 Nc6 6.d4,,,, -C27,"Frankenstein-Dracula Var, Vienna",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Qh5 Nd6 5.Bb3 Nc6 6.Nb5 g6 7.Qf3 f5 8.Qd5 Qe7,,,, -C28,"Three Knights Variation, Vienna; C28",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nc6,,,, -C29,"Vienna Gambit, Vienna; C29",1.e4 e5 2.Nc3 Nf6 3.f4,,,, -C29,"Steinitz Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.d3,,,, -C29,"Wurzburger Trap, Vienna",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.d3 Qh4 6.g3 Nxg3 7.Nf3 Qh5 8.Nd5 Bxd5 9.Nf4,,,, -C29,"Breyer Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Be7,,,, -C29,"Kaufmann Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Bg4 6.Qe2,,,, -C29,"Paulsen Attack, Vienna",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Qf3,,,, -C29,"Bardeleben Variation, Vienna",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Qf3 f5,,,, -C30,King's Gambit; C30,1.e4 e5 2.f4,,,, -C30,"Classical Defense, KGD",1.e4 e5 2.f4 Bc5��,,,, -C30,"Heath Variation, KGD; Rotlewi Countergambit",1.e4 e5 2.f4 Bc5 3.Nf3 d6 4.b4,,,, -C30,"Marshall (Euwe) Attack, KGD",1.e4 e5 2.f4 Bc5 3.Nf3 d6 4.c3 Bg4 5.fxe5 dxe5 6.Qa4+,,,, -C30,"Rubinstein Countergambit, KGD",1.e4 e5 2.f4 Bc5 3.Nf3 d6 4.c3 f5,,,, -C30,"Svenonius Variation, KGD",1.e4 e5 2.f4 Bc5 3.Nf3 d6 4.Nc3 Nf6 5.Bc4 Nc6 6.d3 Bg4,,,, -C30,"Senechaud Counter-Gambit, KGD",1.e4 e5 2.f4 Bc5 3.Nf3 g5,,,, -C30,"Mafia Defense, KGD",1.e4 e5 2.f4 c5,,,, -C30,"Panteldakis Countergambit, KGD",1.e4 e5 2.f4 f5,,,, -C30,"Soller-Zilbermints Gambit, KGD",1.e4 e5 2.f4 f6 3.fxe5 Nc6,,,, -C30,Zilbermints Double Countergambit; KGD,1.e4 e5 2.f4 g5,,,, -C30,"Queen's Knight Defense, KGD",1.e4 e5 2.f4 Nc6,,,, -C30,"Miles Defense, KGD",1.e4 e5 2.f4 Nc6 3.Nf3 f5,,,, -C30,"Zilbermints Double Gambit I, KGD",1.e4 e5 2.f4 Nc6 3.Nf3 g5,,,, -C30,"Petrov's Defense, KGD",1.e4 e5 2.f4 Nf6,,,, -C30,"Norwalde (Norwalder) Variation, KGD",1.e4 e5 2.f4 Qf6,,,, -C30,"Schubert Variation, KGD",1.e4 e5 2.f4 Qf6 3.Nc3 Qxf4 4.d4,,,, -C30,"Keene Defense, KGD",1.e4 e5 2.f4 Qh4+ 3.g3 Qe7,,,, -C31,"Falkbeer Counter-Gambit, KGD; C31",1.e4 e5 2.f4 d5��,,,, -C31,"Hinrichsen Gambit, KGD",1.e4 e5 2.f4 d5 3.d4,,,, -C31,"Falkbeer Countergambit Accepted, KGD",1.e4 e5 2.f4 d5 3.exd5,,,, -C31,"Miles Gambit, KGD",1.e4 e5 2.f4 d5 3.exd5 Bc5,,,, -C31,"Nimzovich-Marshall Variation, KGD",1.e4 e5 2.f4 d5 3.exd5 c6,,,, -C31,"Marshall C-G, KGD",1.e4 e5 2.f4 d5 3.exd5 c6,,,, -C31,"Pickler Gambit, KGD",1.e4 e5 2.f4 d5 3.exd5 c6 4.dxc6 Bc5,,,, -C31,"Nimzovich Variation, KGD; Anderssen Attack",1.e4 e5 2.f4 d5 3.exd5 e4 4.Bb5+,,,, -C31,"Blackbunre Attack, KGD",1.e4 e5 2.f4 d5 3.Nf3,,,, -C32,"Staunton Line, KGD; C32",1.e4 e5 2.f4 d5 3.exd5 e4,,,, -C32,"Reti (Charousek) Variation, KGD",1.e4 e5 2.f4 d5 3.exd5 e4 4.d3��,,,, -C32,"Morphy Defense, KGD",1.e4 e5 2.f4 d5 3.exd5 e4 4.d3 Nf6 5.Nc3 Bb4 6.Bd2 e3,,,, -C32,"Keres Variation, KGD",1.e4 e5 2.f4 d5 3.exd5 e4 4.d3 Nf6 5.Nd2,,,, -C32,"Old Line, Falkbeer Countergambit, KGD",1.e4 e5 2.f4 d5 3.exd5 e4 4.d3 Nf6 5.Qe2,,,, -C32,"Modern Transfer, Falkbeer Countergambit, KGD",1.e4 e5 2.f4 d5 3.exd5 exf4,,,, -C33,King's Gambit Accepted; C33,1.e4 e5 2.f4 exf4,,,, -C33,"Orsini Gambit, KGA",1.e4 e5 2.f4 exf4 3.b3,,,, -C33,"Schurig Gambit, KGA",1.e4 e5 2.f4 exf4 3.Bb5,,,, -C33,"Bishop's Gambit, KGA",1.e4 e5 2.f4 exf4 3.Bc4,,,, -C33,"Kieseritzky Gambit, Bishop's Gambit, KGA",1.e4 e5 2.f4 exf4 3.Bc4 b5,,,, -C33,"Lopez Defense, KGA",1.e4 e5 2.f4 exf4 3.Bc4 c6,,,, -C33,"Bledow; Morphy Defense, KGA",1.e4 e5 2.f4 exf4 3.Bc4 d5,,,, -C33,"Bledow Countergambit, KGA",1.e4 e5 2.f4 exf4 3.Bc4 d5 4.Bxd5 Nf6,,,, -C33,"Gianutio Counter-Gambit, KGA",1.e4 e5 2.f4 exf4 3.Bc4 f5,,,, -C33,"Anderssen Defense, KGA",1.e4 e5 2.f4 exf4 3.Bc4 g5,,,, -C33,"Maurian Defense, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Nc6,,,, -C33,Cozio; Hanneken; Prussian; Lichtenhein,1.e4 e5 2.f4 exf4 3.Bc4 Nf6,,,, -C33,"Bogoljubow Variation, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Nf6 4.Nc3,,,, -C33,"Bogoljubov; Jaenisch Variation, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Nf6 4.Nc3 c6,,,, -C33,"Bryan; Kieseritzky Gambit, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 b5,,,, -C33,"Greco Variation, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 Bc5,,,, -C33,"Cozio Variation, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 d6,,,, -C33,"Classical Defense, KGA; Lopez Variation",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 g5,,,, -C33,"Grimm Attack, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 g5 5.Nc3 Bg7 6.d4 d6 7.e5,,,, -C33,"MacDonnell Attack, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 g5 5.Nc3 Bg7 6.d4 Ne7 7.g3,,,, -C33,"McDonnell Attack, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 g5 5.Nc3 Bg7 6.g3��,,,, -C33,"Fraser Variation, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 g5 5.Nc3 Bg7 6.g3 fxg3 7.Qf3,,,, -C33,"Cozio Attack, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 g5 5.Qf3,,,, -C33,"Boden Variation, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 Nc6,,,, -C33,"Jaenisch Variation, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 Nf6,,,, -C33,"Jaenisch Variation, KGA",1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 Qf6,,,, -C33,Lesser Bishop; Tartakower,1.e4 e5 2.f4 exf4 3.Be2,,,, -C33,"Weiss Defense, KGA",1.e4 e5 2.f4 exf4 3.Be2 f5 4.exf5 d6,,,, -C33,"Central; Polerio; Willemson, Steinitz",1.e4 e5 2.f4 exf4 3.d4,,,, -C33,"Gaga Gambit, KGA",1.e4 e5 2.f4 exf4 3.g3,,,, -C33,"Gama Gambit, KGA",1.e4 e5 2.f4 exf4 3.g3 fxg3 4.Nf3,,,, -C33,"Leonardo (Stamma) Gambit, KGA",1.e4 e5 2.f4 exf4 3.h4,,,, -C33,"Drunken King, KGA",1.e4 e5 2.f4 exf4 3.Kf2,,,, -C33,"Tumbleweed; King's Own, KGA",1.e4 e5 2.f4 exf4 3.Kf2�,,,, -C33,"Keres, Mason, Parnu, Requena",1.e4 e5 2.f4 exf4 3.Nc3,,,, -C33,"Requena Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nc3 Qh4+,,,, -C33,"Paris Gambit, KGA",1.e4 e5 2.f4 exf4 3.Ne2,,,, -C33,"Eisenberg Variation, KGA",1.e4 e5 2.f4 exf4 3.Nh3,,,, -C33,"Basman Gambit, KGA",1.e4 e5 2.f4 exf4 3.Qe2,,,, -C33,"Bilguer-Mirage Variation, KGA",1.e4 e5 2.f4 exf4 3.Qe2,,,, -C33,"Breyer; Hungarian; Carrera, KGA",1.e4 e5 2.f4 exf4 3.Qf3,,,, -C33,"Dodo Gambit, KGA",1.e4 e5 2.f4 exf4 3.Qg4,,,, -C33,"Carrera Gambit, KGA",1.e4 e5 2.f4 exf4 3.Qh5,,,, -C34,"King's Knight Gambit, KGA; C34",1.e4 e5 2.f4 exf4 3.Nf3,,,, -C34,"Fischer Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 d6,,,, -C34,"Schulder Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 d6 4.b4,,,, -C34,"Gianutio Countergambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 f5,,,, -C34,"Becker; Anti-Kieseritzky Var, KGA",1.e4 e5 2.f4 exf4 3.Nf3 h6,,,, -C34,"MacLeod Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 Nc6,,,, -C34,"Bonsch-Osmolovsky Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 Ne7,,,, -C34,"Schallop Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 Nf6,,,, -C34,"Tashkent Attack, KGA",1.e4 e5 2.f4 exf4 3.Nf3 Nf6 4.e5 Nh5 5.g4,,,, -C35,"Cunningham Gambit, KGA; C35",1.e4 e5 2.f4 exf4 3.Nf3 Be7,,,, -C35,"Wild Cunningham Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 Be7 4.Bc4 Bh4+��,,,, -C35,"Bertin; Three Pawns Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 Be7 4.Bc4 Bh4+ 5.g3,,,, -C35,"Neo-Cunningham Gambit, KGA; McCormick Defense",1.e4 e5 2.f4 exf4 3.Nf3 Be7 4.Bc4 Nf6,,,, -C36,"Scandinavian Variation, KGA; Modern Defense, KGA; C36",1.e4 e5 2.f4 exf4 3.Nf3 d5,,,, -C36,"Abbazia Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 d5 4.exd5 Nf6,,,, -C37,C37,1.e4 e5 2.f4 exf4 3.Nf3 g5,,,, -C37,"Ghulam Kassim; Koch Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4,,,, -C37,"Middleton Counter-Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 d6 5.O-O Bg4 6.h3 h5 7.hxg4,,,, -C37,"Greco-Lolli; Wild Muzio Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Bxf7+,,,, -C37,"Young Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Bxf7+ Kxf7 6.O-O gxf3 7.Qxf3 Qf6 8.d4 Qxd4+ 9.Be3,,,, -C37,"Koch; Ghulam Kassim Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.d4,,,, -C37,Kotov Gambit,1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.d4 gxf3 6.Bxf4,,,, -C37,"Ghulam-Kassim Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.d4 gxf3 6.Qxf3,,,, -C37,"Australian Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.h4,,,, -C37,"MacDonnell Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Nc3,,,, -C37,"Salvio Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Ne5��,,,, -C37,"Cochrane Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Ne5� Qh4+ 6.Kf1 f3,,,, -C37,"Herzfeld; Portuguese; Vienna, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Ne5� Qh4+ 6.Kf1 Nc6,,,, -C37,"Santa Maria Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Ne5� Qh4+ 6.Kf1 Nf6,,,, -C37,"Silberschmidt Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Ne5� Qh4+ 6.Kf1 Nh6,,,, -C37,"Anderssen Counter-Attack, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.Ne5 Qh4+ 6.Kf1 Nh6 7.d4 d6,,,, -C37,"Muzio-Polerio Gambit, KGA; Wild Muzio",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O,,,, -C37,"Brentano Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O d5,,,, -C37,"Holloway Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Nc6,,,, -C37,"From Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Qe7,,,, -C37,"Sarratt Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Qf6,,,, -C37,"Young Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Qf6 7.Bxf7+ Kxf7 8.d4 Qxd4+ 9.Be3 Qf6,,,, -C37,"Double Muzio Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Qf6 7.e5 Qxe5 8.Bxf7+,,,, -C37,"Paulsen Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Qf6 7.e5 Qxe5 8.d3 Bh6 9.Nc3 Ne7 10.Bd2,,,, -C37,"Bello Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Qf6 7.Nc3,,,, -C37,"Baldwin Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Qf6 7.Nc3 Qd4+ 8.Kh1 Qxc4 9.Nd5,,,, -C37,"Kling & Horwitz Counter-Attack, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O Qe7,,,, -C37,"Blachy Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Nc6,,,, -C37,"Rosentreter Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.d4,,,, -C37,"Soerensen Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.d4 Bg4 5.Nc3,,,, -C37,"Sorensen Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.d4 Bg4 5.Ne5,,,, -C37,"Bird Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.d4 Bg4 5.Ne5 Qh4+ 6.g3,,,, -C37,"Rosentreter-Testa Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.d4 g4 5.Bxf4,,,, -C37,"Quaade; Taylor Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Nc3,,,, -C38,"Traditional Variation, KGA; C38",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7,,,, -C38,"Mayet Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.d4 d6 6.c3,,,, -C38,"Philidor Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.h4,,,, -C38,"Greco Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.h4 h6 6.d4 d6,,,, -C38,"Greco; Calabrian Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.h4 h6 6.d4 d6 7.hxg5 hxg5 8.Rxh8 Rxh8 9.Nc3,,,, -C38,"Schultz Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.h4 h6 6.d4 d6 7.Qd3,,,, -C38,"Hanstein Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.O-O,,,, -C39,C39,1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4,,,, -C39,"Kieseritzky Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5,,,, -C39,"Paulsen Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Bg7,,,, -C39,"Campbell; Brentano; Morphy Var, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 d5,,,, -C39,"Green; Kolisch Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 d6,,,, -C39,"Long Whip Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 h5,,,, -C39,"Cotter Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 h6 6.Nxf7,,,, -C39,"Neumann Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nc6,,,, -C39,"Berlin Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6,,,, -C39,"Anderssen Defense, Kieseritsky Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.Bc4 d5 7.exd5 Bd6,,,, -C39,"Anderssen-Cordel Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.Bc4 d5 7.exd5 Bd6 8.d4 Nh5 9.Bxf4 Nxf4,,,, -C39,"Rice Gambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.Bc4 d5 7.exd5 Bd6 8.O-O,,,, -C39,"Rice Gambit Accepted, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.Bc4 d5 7.exd5 Bd6 8.O-O Bxe5,,,, -C39,"Paulsen Defense Deferred, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.Bc4 d5 7.exd5 Bg7,,,, -C39,"Rubinstein Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.d4,,,, -C39,"Riviere Variation, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.Nxg4 d5,,,, -C39,"Rosenthal; Stockwhip Var, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Qe7,,,, -C39,"Allgaier; Cotter Cambit, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5,,,, -C39,"Walker (Urusov) Attack, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 h6 6.Nxf7 Kxf7 7.Bc4+,,,, -C39,"Urusov Attack, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 h6 6.Nxf7 Kxf7 7.Bc4+ d5 8.Bxd5+ Ke8 9.d4,,,, -C39,"Thorold Attack, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 h6 6.Nxf7 Kxf7 7.d4,,,, -C39,"Horny Defense, KGA",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 h6 6.Nxf7 Kxf7 7.Qxg4 Nf6 8.Qxf4,,,, -C40,King's Knight Opening; C40,1.e4 e5 2.Nf3,,,, -C40,Glatz Gambit; Busch-Gass Gambit,1.e4 e5 2.Nf3 Bc5,,,, -C40,Chiodini Gambit,1.e4 e5 2.Nf3 Bc5 3.Nxe5 Nc6,,,, -C40,Jalalabad Defense,1.e4 e5 2.Nf3 c5,,,, -C40,Gunderam Gambit,1.e4 e5 2.Nf3 c6,,,, -C40,Queen's Pawn Counter-Gambit; Elephant Gambit,1.e4 e5 2.Nf3 d5,,,, -C40,Maroczy; Elephant Gambit,1.e4 e5 2.Nf3 d5 3.exd5 Bd6,,,, -C40,Halasz-Jacobsen Gambit,1.e4 e5 2.Nf3 d5 3.exd5 Bd6,,,, -C40,Maroczy Gambit,1.e4 e5 2.Nf3 d5 3.exd5 Bd6,,,, -C40,Paulsen Counter-Gambit,1.e4 e5 2.Nf3 d5 3.exd5 e4,,,, -C40,Wasp Variation,1.e4 e5 2.Nf3 d5 3.Nxe5 dxe4 4.Bc4 Qg5,,,, -C40,Latvian; Greco Counter-Gambit,1.e4 e5 2.Nf3 f5,,,, -C40,"Senechaud Gambit, Latvian",1.e4 e5 2.Nf3 f5 3.b4,,,, -C40,"Mayet Attack, Latvian",1.e4 e5 2.Nf3 f5 3.Bc4��,,,, -C40,"Strautins Gambit, Latvian",1.e4 e5 2.Nf3 f5 3.Bc4 b5,,,, -C40,"Polerio-Svedenborg Variation, Latvian",1.e4 e5 2.Nf3 f5 3.Bc4 fxe4 4.Nxe5 d5�,,,, -C40,"Poisoned Pawn Variation, Latvian",1.e4 e5 2.Nf3 f5 3.Bc4 fxe4 4.Nxe5 Qg5 5.d4 Qxg2,,,, -C40,"Duke of Courland Variation, Latvian",1.e4 e5 2.Nf3 f5 3.Bc4 fxe4 4.Nxe5 Qg5 5.d4 Qxg2 6.Qh5 g6 7.Bf7 Kd8 9.Bg6 Qh1,,,, -C40,"Morgado Defense, Latvian",1.e4 e5 2.Nf3 f5 3.Bc4 Nf6,,,, -C40,"Diepstraten Countergambit, Latvian",1.e4 e5 2.Nf3 f5 3.c4,,,, -C40,"Clam Gambit, Latvian",1.e4 e5 2.Nf3 f5 3.d3 Nc6 4.exf5,,,, -C40,"Mason Countergambit, Latvian",1.e4 e5 2.Nf3 f5 3.d4,,,, -C40,Latvian Gambit Accepted,1.e4 e5 2.Nf3 f5 3.exf5,,,, -C40,"Lobster Gambit, Latvian",1.e4 e5 2.Nf3 f5 3.g4,,,, -C40,"Mlotkowski Variation, Latvian",1.e4 e5 2.Nf3 f5 3.Nc3,,,, -C40,"Fraser Defense, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Nc6,,,, -C40,"Corkscrew Counter-Gambit, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Nf6 4.Bc4 fxe4 5.Nf7 Qe7 8.Nxh8 d5,,,, -C40,"Greco Variation, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Qe7,,,, -C40,"Mail Line, Latvian Gambit Accepted",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.d4,,,, -C40,"Bilguer Variation, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4,,,, -C40,"Bronstein Attack, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Be2,,,, -C40,"Nimzovich Attack, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Ne3,,,, -C40,"Bronstein Gambit, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Qh5+ g6 7.Qe2,,,, -C40,"Foltys-Leonhardt Variation, Latvian Gambit",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.Nc4,,,, -C40,"Foltys Variation, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.Nc4 fxe4 5.d3,,,, -C40,"Leonhardt Variation, Latvian",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.Nc4 fxe4 5.Nc3,,,, -C40,Damiano Defense,1.e4 e5 2.Nf3 f6,,,, -C40,Damiano Gambit,1.e4 e5 2.Nf3 f6 3.Nxe5 fxe5 4.Qh5+ g6 5.Qxe5+ Qe7 6.Qxh8,,,, -C40,"Chigorin Gambit, Damiano",1.e4 e5 2.Nf3 f6 3.Nxe5 Qe7 4.Nf3 d5,,,, -C40,Levenstein; Queen's Defense; Brazilian; Gunderam,1.e4 e5 2.Nf3 Qe7,,,, -C40,Gunderam Gambit,1.e4 e5 2.Nf3 Qe7 3.Bc4 f5,,,, -C40,McConnell Defense,1.e4 e5 2.Nf3 Qf6,,,, -C40,Greco Defense,1.e4 e5 2.Nf3 Qf6,,,, -C40,Labourdonnais Gambit,1.e4 e5 2.Nf3 Qf6 3.Bc4 Qg6 4.O-O,,,, -C41,Philidor Defense; C41,1.e4 e5 2.Nf3 d6,,,, -C41,"Lopez Counter-Gambit, Philidor",1.e4 e5 2.Nf3 d6 3.Bc4 f5,,,, -C41,Philidor Gambit,1.e4 e5 2.Nf3 d6 3.d4 Bd7,,,, -C41,"Alapin-Blackburne Gambit, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Bg4 4.dxe5 Nd7,,,, -C41,"Exchange Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 exd4,,,, -C41,"Morphy Gambit, Philidor",1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Bc4,,,, -C41,"Bird Gambit, Philidor",1.e4 e5 2.Nf3 d6 3.d4 exd4 4.c3,,,, -C41,"Paulsen Attack, Philidor",1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 d5 5.exd5,,,, -C41,"Larsen Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 g6,,,, -C41,"Boden Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Qxd4 Bd7,,,, -C41,Philidor Counter Attack,1.e4 e5 2.Nf3 d6 3.d4 f5,,,, -C41,"Zukertort Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 f5 4.Nc3,,,, -C41,"Hanham; Lord Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nd7,,,, -C41,"Delmar Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.c3,,,, -C41,"Schlechter Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.Nc3,,,, -C41,"Krause Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.O-O,,,, -C41,"Steiner Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.O-O Be7 6.dxe5,,,, -C41,"Sharp Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 Nb6,,,, -C41,"Lion Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Nc3 Nf6,,,, -C41,"Jaenisch Counter-Attack, Philidor; Nimzovich Variation",1.e4 e5 2.Nf3 d6 3.d4 Nf6,,,, -C41,"Klein Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Bc4,,,, -C41,"Sokolsky Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.dxe5 Nxe4 5.Nbd2,,,, -C41,"Rellstab Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.dxe5 Nxe4 5.Qd5,,,, -C41,"Larobok Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Nc3 Nbd7,,,, -C41,"Locock Variation, Philidor",1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Ng5 h6 5.Nxf7,,,, -C42,Petroff Defense; Russian Defense; C42,1.e4 e5 2.Nf3 Nf6,,,, -C42,"Urosov Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.Bc4,,,, -C42,"Boden-Kieseritzky Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.Bc4 Nxe4 4.Nc3,,,, -C42,"Lichtenhein Defense, Petroff",1.e4 e5 2.Nf3 Nf6 3.Bc4 Nxe4 4.Nc3 d5,,,, -C42,"Russian Three Knights Var, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nc3,,,, -C42,"Paulsen Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nc4,,,, -C42,"Karklins-Martinovsky Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nd3,,,, -C42,"Millenium Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Bd3,,,, -C42,"Kaufmann Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.c4,,,, -C42,"French Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d3,,,, -C42,"Classical Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4,,,, -C42,"Marshall Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6,,,, -C42,"Tarrasch Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6 7.O-O O-O 8.c4 Bg4,,,, -C42,"Staunton Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6 7.O-O O-O 8.c4 c6,,,, -C42,"Jaenisch Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.c4,,,, -C42,"Browne Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.c4 Nb4 9.cxd5,,,, -C42,"Chigorin Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1,,,, -C42,"Berger Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 Bg4 9.c3 f5 10.Nbd2,,,, -C42,"Mason Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O O-O,,,, -C42,"Mason-Showalter Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6,,,, -C42,"Nimzovich Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3,,,, -C42,"Lasker Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Qe2,,,, -C42,"Cozio (Lasker) Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Qe2,,,, -C42,"Cochrane Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nxf7,,,, -C42,"Stafford Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nc6,,,, -C42,"Damiano Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nxe4,,,, -C42,"Kholmov Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nxe4 4.Qe2 Qe7,,,, -C42,"Moody Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.Qe2 Nc6 4.d4,,,, -C43,"Modern Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.d4,,,, -C43,"Symmetrical Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.d4 d5,,,, -C43,"Suchting Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.Bc4,,,, -C43,"Tal Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.e5 Ne4 5.Bb5,,,, -C43,"Center Attack, Petroff",1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.e5 Ne4 5.Qxd4,,,, -C43,"Trifunovic Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Bd6 6.O-O O-O 7.c4 Bxe5,,,, -C43,"Murret Variation, Petroff",1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 Nc6,,,, -C43,"Steinitz Variation, Petoff; C43",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.d4,,,, -C43,"Urusov Gambit, Petroff",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.d4 exd4 4.Bc4,,,, -C44,C44,1.e4 e5 2.Nf3 Nc6,,,, -C44,Paschman Wing Gambit,1.e4 e5 2.Nf3 Nc6 3.b4,,,, -C44,Taylor Opening; Inverted Hungarian,1.e4 e5 2.Nf3 Nc6 3.Be2,,,, -C44,Inverted Hanham Opening,1.e4 e5 2.Nf3 Nc6 3.Be2 Nf6 4.d3 d5 5.Nbd2,,,, -C44,Basman Gambit,1.e4 e5 2.Nf3 Nc6 3.Be2 Nf6 4.d4 exd4 5.e5,,,, -C44,Ponziani; Staunton; English Knights,1.e4 e5 2.Nf3 Nc6 3.c3��,,,, -C44,"Spanish Variation, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Bb5,,,, -C44,"Nikitin Gambit, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Bb5 dxe4 5.Nxe5 Qd5 6.Qa4,,,, -C44,"Caro Variation, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Qa4 Bd7,,,, -C44,"Steinitz Variation, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Qa4 f6,,,, -C44,"Leonhardt Variation, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Qa4 Nf6,,,, -C44,Ponziani Counter-Gambit,1.e4 e5 2.Nf3 Nc6 3.c3 f5,,,, -C44,"Schmidt Attack, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 f5 4.d4 d6 5.d5,,,, -C44,"Jaenisch Counterattack, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 Nf6,,,, -C44,"Neumann Gambit, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 Nf6 4.Bc4,,,, -C44,"Breyer Opening, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 Nf6 4.d3 Be7 5.b4,,,, -C44,"Vukovic Gambit, Ponziani",1.e4 e5 2.Nf3 Nc6 3.c3 Nf6 4.d4 Nxe4 5.d5 Bc5,,,, -C44,Dresden Opening,1.e4 e5 2.Nf3 Nc6 3.c4,,,, -C44,Scotch Game,1.e4 e5 2.Nf3 Nc6 3.d4,,,, -C44,"MacLopez; Relfsson Gambit, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bb5,,,, -C44,Scotch Gambit,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4,,,, -C44,"London Defense, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bb4+,,,, -C44,"Vitzhum Attack, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bc5 5.Ng5 Nh6 6.Qh5,,,, -C44,"Paulsen; Anderssen C-A, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bc5 5.O-O d6 6.c3 Bg4,,,, -C44,"Benima Defense, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Be7,,,, -C44,"Goering Gambit, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3,,,, -C44,"Goering Gambit Declined, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 d5,,,, -C44,"Double Pawn Sacrifice, Goering Gambit",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3 5.Bc4,,,, -C44,"Bardeleben Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3 5.Nxc3 Bb4 6.Bc4 Nf6,,,, -C44,"Lolli Attack, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 Nxd4,,,, -C44,"Napoleon Gambit, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 Nxd4 4.Nxd4 exd4 5.Bc4,,,, -C44,Konstantinopolsky Opening,1.e4 e5 2.Nf3 Nc6 3.g3,,,, -C44,Chicago; Irish; Schulze-Muller Gambit,1.e4 e5 2.Nf3 Nc6 3.Nxe5 Nxe5 4.d4,,,, -C45,C45,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4,,,, -C45,"Malaniuk Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bb4+,,,, -C45,"Classical Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5,,,, -C45,"Gunsberg Defense, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.Bb5 Nd8,,,, -C45,"Fleissig; Meitner Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.Nc2,,,, -C45,"Blackburne Attack, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.Qd2,,,, -C45,"Millennium Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Qg6,,,, -C45,"Blumenfeld Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.Nb5,,,, -C45,"Potter Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3,,,, -C45,"Romanishin Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3 Bb4+,,,, -C45,"Geller Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3 Bb6 6.a4 a6 7.Nc3 Nf6,,,, -C45,"Intermezzo Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nxc6 Qf6,,,, -C45,"Alekhine Gambit, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.e5,,,, -C45,Schmidt Var; Scotch Four Knights,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nc3,,,, -C45,"Mieses Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6,,,, -C45,"Tartakower Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6 bxc6 6.Nd2,,,, -C45,"Steinitz; Pulling Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4,,,, -C45,"Braune Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Be3,,,, -C45,"Horwitz Attack, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nb5,,,, -C45,"Steinitz Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nc3,,,, -C45,"Modern Defesne, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nc3 Bb4,,,, -C45,"Fraser Attack, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nf3,,,, -C45,"Paulsen Variation, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nf5,,,, -C45`,"Paulsen Attack, Scotch",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.Bb5,,,, -C46,Three Knights Opening; C46,1.e4 e5 2.Nf3 Nc6 3.Nc3,,,, -C46,"Schlechter Variation, Three Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Bb4 4.Nd5 Nf6,,,, -C46,"Winawer Defense, Three Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 f5,,,, -C46,"Steinitz Defense, Three Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 g6,,,, -C46,"Rosenthal Variation, Three Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 g6 4.d4 exd4 5.Nd5,,,, -C46,"Italian Variation, Four Knights��",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bc4,,,, -C46,"Halloween Gambit, Four Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Nxe5,,,, -C47,Four Knights Openng; C47,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6,,,, -C47,"Gunsberg Variation, Four Kngiths",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.a3,,,, -C47,"Provincial Opening, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.a3 d6 5.h3,,,, -C47,"Noa Gambit, Four Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bc4 Nxe4 5.Bxf7+,,,, -C47,"Bogoljubow (Scotch) Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4,,,, -C47,"Oxford Gambit, Four Kngihts",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 Bb4 5.d5 Nd4,,,, -C47,"Krause Gambit, Four Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 Bb4 5.Nxe5,,,, -C47,"Leonhardt Defense, Four Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 Bb4 5.Nxe5 Qe7,,,, -C47,"Belgrade Gambit, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nd5,,,, -C47,"Schmid Gambit, Four Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 Nxe4,,,, -C48,Spanish Four Knights Game; C48,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5,,,, -C48,"Ranken Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 a6 5.Bxc6,,,, -C48,"Classical Variation, Four Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bc5,,,, -C48,"Marshall Gambit, Four Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bc5 5.Nxe5 Nd4 6.Ba4 O-O,,,, -C48,"Rubinstein Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4,,,, -C49,"Double Ruy Lopez Opening, 4 Knights; C49",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4,,,, -C49,"Paulsen Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.Bxc6,,,, -C49,"Svenonius Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 Bxc3 7.bxc3 d5,,,, -C49,"Janowski Variation, Four Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 Bxc3 7.bxc3 d6 8.Re1,,,, -C49,"Symmetrical Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6,,,, -C49,"Bernstein Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Ne7,,,, -C49,"Metger Unpin Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 9.Re1 Nd8,,,, -C49,"Pillsbury Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Bg5 Ne7,,,, -C49,"Maroczy Variation, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Ne2,,,, -C49,"Blackburne Attack, 4 Knights",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.Nd5 Bc5 7.d4,,,, -C50,Italian Game; C50,1.e4 e5 2.Nf3 Nc6 3.Bc4,,,, -C50,Giuoco Piano; Italian Opening,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5,,,, -C50,Jerome Gambit; Kentucky Opening,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+�,,,, -C50,Giuoco Pianissimo,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3��,,,, -C50,Lucchini Gambit; Italian,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 f5,,,, -C50,Italian Four Knights Variation,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.Nc3��,,,, -C50,"Canal Variation, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.Nc3 d6 6.Bg5,,,, -C50,"Rosentreter Gambit, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d4,,,, -C50,"Italian Variation, Four Knights Game",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Nc3 Nf6,,,, -C50,"Deutz Gambit, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O Nf6 5.d4,,,, -C50,Hungarian Defense,1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7,,,, -C50,"Tartakower Variation, Hungarian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.d4 exd4 5.c3 Nf6 6.e4 Ne4,,,, -C50,Half Giuoco Piano; Semi-Italian Opening,1.e4 e5 2.Nf3 Nc6 3.Bc4 d6,,,, -C50,Rousseau Gambit,1.e4 e5 2.Nf3 Nc6 3.Bc4 f5,,,, -C50,"Shilling (Kostic) Gambit, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4,,,, -C51,Evans Gambit; C51,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4,,,, -C51,"Lange Variation, Evans Gambit",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bb6 5.b5 Na5 6.Nxe5 Nh6,,,, -C51,Evans Gambit Accepted,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4,,,, -C51,"Normal Position, Evans Gambit",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.d4 exd4 7.O-O d6 8.cxd4 Bb6,,,, -C51,"Ulvestad Variation, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.d4 exd4 7.O-O d6 8.cxd4 Bb6 9.d5 Na5 10.Bb2,,,, -C51,"Paulsen Variation, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.d4 exd4 7.O-O d6 8.cxd4 Bb6 9.d5 Na5 10.Bb2 Ne7,,,, -C51,"Morphy Attack, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.d4 exd4 7.O-O d6 8.cxd4 Bb6 9.Nc3��,,,, -C51,"Fraser Attack; Mortimer, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.d4 exd4 7.O-O d6 8.cxd4 Bb6 9.Nc3 Bg4 10.Qa4,,,, -C51,"Goering Attack, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.d4 exd4 7.O-O d6 8.cxd4 Bb6 9.Nc3 Na5 10.Bg5,,,, -C51,"Stone-Ware Defense, Evans Gambit",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bd6,,,, -C51,"Anderssen Variation, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Be7,,,, -C51,"Cordel Line, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Be7 6.d4 Na5,,,, -C51,"Hein Countergambit, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 d5,,,, -C52,"Main Line, Evans Gambit; C52",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5,,,, -C52,"Leonhardt Variation, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 b5,,,, -C52,"Sokolsky Variation, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 d6 7.Bg5,,,, -C52,"Lasker Defense, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 d6 7.O-O Bb6,,,, -C52,"Tartakower Attack, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 d6 7.Qb3,,,, -C52,"Pierce Defense, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4,,,, -C52,"Schulen Defense, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O b5,,,, -C52,"Waller Attack, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O d6 8.Qb3,,,, -C52,"Compromised Defense, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O dxc3,,,, -C52,"Mieses Defense, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O Nge7,,,, -C52,"Slow Variation, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.O-O,,,, -C52,"Richardson Attack, Evans",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.O-O Nf6 7.d4 O-O 8.Nxe5,,,, -C53,"Classical Variation, Italian; C53",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3,,,, -C53,"Labourdonnais Variation, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 d6 5.d4 exd4 6.cxd4 Bb6,,,, -C53,"Alexandre Gambit, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 f5,,,, -C53,Giuoco Pianissimo,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3,,,, -C53,"Center Attack, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4,,,, -C53,"Grevo Gambit, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4,,,, -C53,"Albin Gambit, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.O-O,,,, -C53,"Lewis Defense, Italian; Closed Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Qe7,,,, -C53,"Center Holding Variation, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Qe7 5.d4 Bb6�,,,, -C53,"Mestel Variation, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Qe7 5.d4 Bb6 6.Bg5,,,, -C54,C54,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6,,,, -C54,"Bird Attack, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.b4,,,, -C54,"Cracow Variation, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Kf1,,,, -C54,"Moeller (Therkatz) Attack, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Bxc3 9.d5,,,, -C54,"Therkatz-Herzog, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Bxc3 9.d5 Bf6 10.Re1 Ne7,,,, -C54,"Greco Variation, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Nxc3,,,, -C54,"Mason Gambit, Italian",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.O-O,,,, -C55,Two Knights Defense; C55,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6,,,, -C55,De Riviere Gambit,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.c3,,,, -C55,Modern Bishop's Opening,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3,,,, -C56,"Open Variation, Two Knights Defense; C56",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4,,,, -C56,"Perreux Variation, Two Knights Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.Ng5,,,, -C56,Scotch Gambit,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O,,,, -C56,Max Lange Attack,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5 6.e5,,,, -C56,"Loman Defense, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5 6.e5 d5 7.exf6 dxc4 8.Re1+ Be6 9.Ng5 g6,,,, -C56,"Marshall Variation, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5 6.e5 d5 7.exf6 dxc4 8.Re1+ Be7 9.Ng5 Qd5 10.Nc3 Qf5,,,, -C56,"Double Gambit Accepted, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Nxe4,,,, -C56,"Nachmanson Gambit, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Nxe4 6.Nc3,,,, -C56,"Jordansky Attack, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Nxe4 6.Re1 d5 7.Bxd5 Qxd5 8.Nc3 Qa5 9.Ne4 Be6 10.Bg5,,,, -C57,"Prussian Game; Knight Attack, Two Knights; C57",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5,,,, -C57,"Traxler; Wilkes-Barre Var, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5,,,, -C57,"Trencianske-Teplice Gambit, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5 5.Bxf7+ Ke7 6.d4,,,, -C57,"Ulvestad Variation, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 b5,,,, -C57,"Kurkin Gambit, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 b5 6.Bf1 h6 7.Nxf7,,,, -C57,"Kloss Gambit, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nb4,,,, -C57,"Fritz Variation, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nd4,,,, -C57,"Berliner Variation, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nd4 6.c3 b5 7.Bf1 Nxd5 8.Ne4 Qh4,,,, -C57,"Lolli Attack, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.d4,,,, -C57,"Fried Liver; Fegatello Attack, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7,,,, -C57,"Ponziani-Steintz Gambit, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Nxe4,,,, -C58,"Polerio Defense, Two Knights; C58",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5,,,, -C58,"Bogoljubow Variation, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Qf3,,,, -C58,"Colman Variation, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Qf3 Rb8,,,, -C58,"Kieseritzky; Morphy Var, 2 Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.d3,,,, -C58,"Yankovich Variation, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.d3 h6 7.Nf3 e4 8.Qe2 Nxc4 9.dxc4 Bc5 10.Nfd2,,,, -C59,C59,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Be2,,,, -C59,"Suhle Defense, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Be2 h6,,,, -C59,"Goering Variation, Two Knights",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Be2 h6 9.Nf3 e4 10.Ne5,,,, -C60,Ruy Lopez; Spanish Opening; C60,1.e4 e5 2.Nf3 Nc6 3.Bb5,,,, -C60,"Bulgarian Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a5,,,, -C60,"Rotary-Albany Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 b6,,,, -C60,"Alapin Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4,,,, -C60,"Alapin Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4 4.c3 Ba5 5.Bxc6 dxc6,,,, -C60,"Lucena Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Be7,,,, -C60,"Sawyer's Gambit, Ruy Lopez; Spanish Countergambit",1.e4 e5 2.Nf3 Nc6 3.Bb5 d5,,,, -C60,"Harding Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 d5 4.Nxe5 Qg5 5.Nxc6,,,, -C60,"Fricke Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 d5 4.Nxe5 Qg5 5.O-O,,,, -C60,"Nuremberg Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f6,,,, -C60,"Brentano Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 g5,,,, -C60,"Barnes; Smyslov; Fianchetto Var, Ruy",1.e4 e5 2.Nf3 Nc6 3.Bb5 g6,,,, -C60,"Retreat Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nc8,,,, -C60,"Cozio Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7,,,, -C60,"Tartakower Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.d4 exd4 5.Nxd4 g6 6.Nc3 Bg7 7.Be3 O-O 8.Qd2 d5,,,, -C60,"Paulsen Variation, Cozio Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.Nc3 g6,,,, -C60,"Vinogradov Var, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Qe7,,,, -C60,"Frankfort; Gunderam Var, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Qf6,,,, -C61,"Bird Defense, Ruy Lopez; C61",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4,,,, -C61,"Paulsen Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 4.Nxd4 exd4 5.O-O Ne7,,,, -C62,"Steinitz Defense, Ruy Lopez; C62",1.e4 e5 2.Nf3 Nc6 3.Bb5 d6,,,, -C62,"Nimzovich Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 4.d4 Bd7 4.Nc3 Nf6 5.Bxc6,,,, -C62,"Center Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 4.d4 exd4 5.O-O,,,, -C63,"Schliemann; Jaenisch Var, Ruy Lopez; C63",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5,,,, -C63,"Exchange Variation, Schliemann Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Bxc6,,,, -C63,"Schoenemann Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d4,,,, -C63,"Jaenisch Gambit Accepted, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.exf5,,,, -C63,"Berger (Dyckhoff) Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3��,,,, -C63,"Kostic Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Be7,,,, -C63,"Moehring Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5,,,, -C63,"Tartakower Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6,,,, -C63,"Soviet Youth Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Nd4 5.O-O,,,, -C63,"Kostic Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Nf6 5.exf5 Bc5,,,, -C64,"Classical; Cordel Var, Ruy Lopez; C64",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5,,,, -C64,"Spanish Wing Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.b4,,,, -C64,"Charousek Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Bb6,,,, -C64,"Konikowski Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 d5,,,, -C64,"Cordel Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 f5,,,, -C64,"Benelux Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 Bb6 6.O-O O-O,,,, -C64,"Boden Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Qe7,,,, -C64,"Zaitsev Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nd4 5.b4,,,, -C64,"Zukertort Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nf6 5.c3,,,, -C65,"Berlin Defense, Ruy Lopez; C65",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6,,,, -C65,"Kaufmann Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Bc5 5.Be3,,,, -C65,"Anderssen Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.Bxc6+,,,, -C65,"Duras Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.c4,,,, -C65,"Mortimer Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Ne7,,,, -C65,"Mortimer Trap, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Ne7 5.Nxe5 c6,,,, -C65,"Nyholm Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d4 exd4 5.O-O,,,, -C65,"Beverwijk Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Bc5,,,, -C66,"Improved Steinitz Defense, Ruy Lopez; C66",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6,,,, -C66,"Hedgehog Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 Be7,,,, -C66,"Closed Bernstein Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 Be7 7.Bg5,,,, -C66,"Closed Showalter Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 Be7 7.Bxc6,,,, -C66,"Tarrasch Trap, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 Be7 7.Re1 O-O,,,, -C66,"Closed Wolf Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 exd4,,,, -C66,"Fishing Pole Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Ng4,,,, -C67,"Rio Gambit Accepted, Ruy Lopez; C67",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4,,,, -C67,"Rosenthal Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 a6,,,, -C67,"Rio de Janeiro Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7,,,, -C67,"Minckwitz Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.dxe5,,,, -C67,"Trifunovic Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 d5,,,, -C67,"Pillsbury Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 Nd6 7.Bxc6+ bxc6 8.dxe5 Nb7 9.b3,,,, -C67,"Zukertort Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 Nd6 7.Bxc6+ bxc6 8.dxe5 Nb7 9.c4,,,, -C67,"Berlin; Rio de Janerio Var, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 Nd6 7.Bxc6+ bxc6 8.dxe5 Nb7 9.Nc3 O-O 10.Re1,,,, -C67,"Winawer Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 Nd6 7.Bxc6+ bxc6 8.dxe5 Nb7 9.Nd4 O-O,,,, -C67,"Cordel Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 Nd6 7.Bxc6+ bxc6 8.dxe5 Nf5,,,, -C67,"L'Hermet Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6,,,, -C67,"Westerinen Line, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Ne4,,,, -C68,"Morphy Defense, Ruy Lopez; C68",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6,,,, -C68,"Exchange Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6,,,, -C68,"Lutikov Variation, Ruy Lopez Exchange",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 bxc6,,,, -C68,"Keres Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 bxc6 5.Nc3,,,, -C68,"Romanovsky Variation, Ruy Lopez Exchange",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 bxc6 5.Nc3 f6 6.d3,,,, -C68,"Alekhjne Variation, Ruy Lopez Exchange",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.d4 exd4 6.Qxd4 Qxd4 7.Nxd4 Bd6,,,, -C68,"Barendregt-Fischer Var, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O,,,, -C68,"King's Bishop Variation, Ruy Lopez Exchange",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bd6,,,, -C68,"Alapin Gambit, Ruy Lopez Exchange",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5,,,, -C69,"Gligoric Variation, Ruy Lopez; C69",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6,,,, -C69,"Bronstein Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6,,,, -C70,"Morphy Defense, Ruy Lopez; C70",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4,,,, -C70,"Caro Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5,,,, -C70,"Graz Variation, Ruy",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Bc5,,,, -C70,"Furman-Taimanov; Wing Var, Ruy; Norwegian Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5,,,, -C70,"Nightingale Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5 6.Bxf7+,,,, -C70,"Alapin's Defense Deferred, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Bb4,,,, -C70,"Classical Defense Deferred, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Bc5,,,, -C70,"Schliemann Defense Deferred, Ruy",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 f5,,,, -C70,"Jaenisch Gambit Deferred, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 f5 5.exf5,,,, -C70,"Cozio Defense Deferred, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nge7,,,, -C71,Steinitz Defense Deferred; Ruy Lopez; C71,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6,,,, -C71,"Modern Steinitz Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6,,,, -C71,"Keres Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c4,,,, -C71,"Noah's Ark Trap, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.d4 b5 6.Bb3 exd4 7.Nxd4 Nxd4 8.Qxd4 c5 9.Qd5 Be6 10.Qc6+ Bd7,,,, -C72,C72,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O,,,, -C73,C73,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6,,,, -C73,"Richter Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4,,,, -C73,"Alapin Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4 f6,,,, -C74,C74,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3,,,, -C74,"Siesta Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5,,,, -C74,"Kopaiev Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5 6.exf5 Bxf5 7.O-O,,,, -C75,C75,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7,,,, -C76,C76,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 g6,,,, -C77,C77,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6,,,, -C77,Treybel; Flohr; Exchange Var Deferred,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Bxc6,,,, -C77,"Bayreuth Variation, ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Bxc6,,,, -C77,"Jaffe Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.c3,,,, -C77,"Anderssen Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3,,,, -C77,"Duras Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6 6.c4,,,, -C77,"Mackenzie Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4,,,, -C77,"Center Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4 exd4,,,, -C77,"Nimzovich; Tarrasch Var, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Nc3,,,, -C77,"Wormald Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Qe2,,,, -C78,"Normal Variation, Ruy Lopez; C78",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O,,,, -C78,"Arkangelsk; Counterthrust Var, Ruy",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5�,,,, -C78,"Shannon Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.Ng5 d5,,,, -C78,"Wing Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Be7 7.a4,,,, -C78,"Neo-Steinitz Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 d6,,,, -C78,"Moeller Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Bc5,,,, -C79,"Central Countergambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d5,,,, -C79,"Russian Defense, Ruy Lopez; C79; Lasker Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6,,,, -C79,"Brix Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O g6,,,, -C80,"Tarrasch; Open Variation, Ruy Lopez; C80",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4,,,, -C80,"Schlechter Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.a4 Nxd4,,,, -C80,"Berger Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.a4 Nxd4 9.Nxd4 exd4 10.Nc3,,,, -C80,"Harksen Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.c4,,,, -C80,"Bernstein Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Nbd2,,,, -C80,"Karpov Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Nbd2 Nc5 10.c3 d4,,,, -C80,"Zukertort Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Ne7,,,, -C80,"Richter Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.d5,,,, -C80,"Friess Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Nxe5,,,, -C80,"Riga Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 exd4,,,, -C80,"Knoore Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.Nc3,,,, -C80,"Tartakower Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.Qe2,,,, -C80,"Skipworth Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.Re1 d5,,,, -C81,Keres; Estonian; Howell; Moscow Var,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6,,,, -C81,"Howell Attack, Ruy Lopez; C81",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Qe2,,,, -C81,"Adam Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7 10.c4,,,, -C81,"Ekstrom Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7 10.Rd1 O-O 11.c4,,,, -C82,C82,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3,,,, -C82,"Italian Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5,,,, -C82,"St Petersburg Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Nbd2,,,, -C82,"Dilworth; Kleczynski Var, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Nbd2 O-O 11.Bc2,,,, -C82,"Motzko Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Qd3,,,, -C82,"Nenarokov Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Qd3 Ne7,,,, -C82,"Berlin Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Nc5,,,, -C83,"Malkin Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5,,,, -C83,C83,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Be7��,,,, -C83,"Breslau Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Be7 10.Re1 O-O 11.Nd4,,,, -C84,"Closed Defense, Ruy Lopez; C84",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7,,,, -C84,"Center Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d4,,,, -C84,"Basque Gambit, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d4 exd4 7.e5 Ne4 8.c3,,,, -C84,"Lopez Four Knights, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Nc3,,,, -C85,Delayed Exchange Ruy Lopez Deferred; C85,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6,,,, -C86,"Worrall Attack, Ruy Lopez; C86",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2,,,, -C86,"Schlechter Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O 8.c3 d5,,,, -C86,"English Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O 8.c3 d6 9.d4 Bg4,,,, -C87,C87,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1,,,, -C87,"Averbakh Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6,,,, -C87,"Kecskemet; Timbuktu Var, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6 7.c3 O-O 8.d4 Bd7 9.Nbd2 Be8,,,, -C87,"Romanovsky Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6 7.c3 O-O 8.d4 Bd7 9.Nbd2 exd4 10.cxd4 Nb4,,,, -C88,C88,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3,,,, -C88,"Trajkovic Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 Bb7,,,, -C88,"Pseudo-Marshall Var, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 Bb7 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5,,,, -C88,"Rosen Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.d4,,,, -C88,"Anti-Marshall Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4,,,, -C89,C89,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3,,,, -C89,"Marshall Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5,,,, -C89,"Marshall Counter-Attack, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.d4�,,,, -C89,"Steiner Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 e4,,,, -C89,"Kevitz Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.Bxd5 cxd5 13.d4 Bd6 14.Re3,,,, -C89,"Geller Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re1 Qh4 14.g3 Qh3,,,, -C89,"Fischer Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.g3,,,, -C90,C90,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6,,,, -C90,"Balla Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 Na5 9.Bc2 c5 10.d4 Qc7,,,, -C90,"Suetin Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.a3,,,, -C90,"Lutikov Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.Bc2,,,, -C90,"Pilnik Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.d3,,,, -C90,"Suetin Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.a3,,,, -C90,"Lutikov Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.Bd2,,,, -C90,"Leonhardt Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 Na5 9.Bc2 c5 10.d4 Qc7 11.h3 Nc6 12.d5 Nd8 13.Nbd2 g5,,,, -C91,"Yates Variation, Ruy; C91",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.d4,,,, -C91,"Bogoljubow; Counterthrust Var, Ruy",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.d4 Bg4,,,, -C92,C92,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3,,,, -C92,"Keres Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 a5,,,, -C92,"Flohr; Zaitsev; Lenzerheide Var, Ruy",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Bb7,,,, -C92,"Kholmov Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Be6,,,, -C92,"Spanish Benoni, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.d5,,,, -C92,"Keres Defense, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nd7,,,, -C92,"Zaitsev System, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Re8,,,, -C93,"Smyslov Variation, Ruy Lopez; C93",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 h6,,,, -C94,"Breyer; Retreat Variation, Ruy Lopez; C94",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8,,,, -C95,C95,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8 10.d4,,,, -C95,"Borisenko Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8 10.d4 Nbd7,,,, -C95,"Arseniev Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8 10.d4 Nbd7 11.c4,,,, -C95,"Romanishin Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.Nf1 Bf8 14.Bg5,,,, -C95,"Simagin Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8 10.d4 Nbd7 11.Nh4,,,, -C96,C96,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5,,,, -C96,"Borisenko Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Nc6,,,, -C96,"Keres Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Nd7,,,, -C97,"Chigorin Variation, Ruy Lopez; C97",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7��,,,, -C97,"Classical Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2,,,, -C98,C98,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Nc6�,,,, -C98,"Rauzer Variation, Ruy Lopez",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Nc6 13.dxe5 dxe5 14.a4,,,, -C99,C99,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4,,,, -D00,Queen Pawn Game; Close Opening; D00,1.d4 d5,,,, -D00,Sarratt Attack,1.d4 d5 2.Bf4,,,, -D00,"Steinitz Countergambit, Queen Pawn Game",1.d4 d5 2.Bf4 c5,,,, -D00,Morris Gambit,1.d4 d5 2.Bf4 c5 3.e4��,,,, -D00,Morris Counter-Gambit,1.d4 d5 2.Bf4 c5 3.e4 dxe4,,,, -D00,"Bishop Attack; Levitsky Attack, Queen Pawn Game",1.d4 d5 2.Bg5,,,, -D00,Zot,1.d4 d5 2.Bg5,,,, -D00,"Welling Variation, Queen Pawn Game",1.d4 d5 2.Bg5 Bg4,,,, -D00,"Euwe Variation, Queen Pawn Game",1.d4 d5 2.Bg5 h6 3.Bh4 c6 4.Nf3 Qb6,,,, -D00,"Stonewall Attack, Queen Pawn Game",1.d4 d5 2.e3 Nf6 3.Bd3,,,, -D00,Stonewall Attack,1.d4 d5 2.e3 Nf6 3.Bd3 c5 4.c3,,,, -D00,Blackmar-Diemer Gambit,1.d4 d5 2.e4,,,, -D00,"Fritz Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Bc4,,,, -D00,"Diemer-Rosenberg Attack, BDG",1.d4 d5 2.e4 dxe4 3.Be3,,,, -D00,Blackmar Gambit; Gedult Gambit,1.d4 d5 2.e4 dxe4 3.f3�,,,, -D00,"Pohlmann Variation, BDG",1.d4 d5 2.e4 dxe4 3.f3 f5,,,, -D00,"Mieses; Nimzovich Var, BDG",1.d4 d5 2.e4 dxe4 3.f3 Nc6,,,, -D00,"Polish Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3,,,, -D00,"Grosshans Defense, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Bd7,,,, -D00,"Zeller Defesne, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Bf5,,,, -D00,"Zeller Defesne, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Bf5 4.f3 exf3 5.Qxf3 Bc8,,,, -D00,"Soller Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Bf5 4.f3 Nf6 5.Bc4,,,, -D00,"Dries Counter-Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 c5,,,, -D00,"Lemberger Counter-Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 e5,,,, -D00,"Soller; Lemberger Var, BDG; Diemer Attack",1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Be3,,,, -D00,"Endgame Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.dxe5,,,, -D00,"Rasmussen Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Nge2,,,, -D00,Lange Gambit; Alfred Lange Gambit; Simple Variation,1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Nxe4,,,, -D00,"Sneiders Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Qh5,,,, -D00,"Rasa-Studier Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 e6 4.Be3,,,, -D00,"Giertz-Peters Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 e6 4.f3,,,, -D00,"Polish Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 e6 4.f3 Bf5 5.Bg5,,,, -D00,"Netherlands Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 f5,,,, -D00,"Mieses; Nimzovich Var, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nc6�,,,, -D00,"Vienna Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6,,,, -D00,"Studier-Rasa Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Be3,,,, -D00,Von Popiel Gambit,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Bg5,,,, -D00,"Zilbermints Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Bg5 Bf5 5.Bxf6 exf6 6.g4 Bg6 7.Qe2 Bb4 8.Qb5+,,,, -D00,Blackmar-Diemer Gambit,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3,,,, -D00,"Wiesengren Defense, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bc5,,,, -D00,Hans Mullers; Vienna V,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5,,,, -D00,"Soller; Vienna Var, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5 5.Bc4,,,, -D00,"Tejler Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5 5.Bf4,,,, -D00,"Sperling Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5 5.d5,,,, -D00,"Diemer Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5 5.fxe4,,,, -D00,"Kampars Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5 5.g4 Bg6 6.g5 Nd5 7.fxe4,,,, -D00,"Gunderam Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5 5.g4 Bg6 6.h4,,,, -D00,"Brombacher; Daberitz Var, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 c5,,,, -D00,"O'Kelly Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 c6�,,,, -D00,"Langeheinecke Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e3,,,, -D00,"Elbert Counter-Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e5,,,, -D00,"Weinsbach Declination, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e6,,,, -D00,"Pfrang Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e6 5.fxe4 Bb4 6.Bd3 Bxc3+ 7.bxc3 Nxe4 8.Be3,,,, -D00,"Ritter Defense, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 b6�,,,, -D00,"Gunderam; Tartakower Var, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bf5,,,, -D00,"Teichmann Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4,,,, -D00,"Kaulich Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 c5,,,, -D00,"Ziegler; Gunderam's 2nd Defense, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 c6,,,, -D00,"Euwe Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 e6��,,,, -D00,"Zilbermints Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 e6� 6.Bg5 Be7 7.Bd3 Nc6 8.O-O Nxd4 9.Kh1,,,, -D00,"Duthilleuk Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 e6 6.Bd3 Nc6 7.Bg5 Be7 8.Ne4,,,, -D00,"Bogoljubow Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6,,,, -D00,"Mad Dog Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.h4,,,, -D00,"Nimzovich Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.Ne5,,,, -D00,"Kloss Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.O-O O-O 8.Kh1,,,, -D00,"Studier Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.O-O O-O 8.Qe1,,,, -D00,"Diemer Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bf4,,,, -D00,"Peters Attack, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Ne5,,,, -D00,"Gunderam Defense, BDG; Rook Pawn Defense",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 h5,,,, -D00,"Schuttler Defense, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Nbd7,,,, -D00,"Pietrowsky Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Nc6,,,, -D00,"Ryder Variation, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Qxf3,,,, -D00,"Tautvaisis Defense, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Qxf3 Nc6,,,, -D00,"Tejler Gambit, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Qxf3 Qxd4 6.Be3 Qg4 7.Qf2 Ne4 8.Nxe4 Qxe4 9.O-O-O Nc6 10.Bd3,,,, -D00,"Albrecht; Karlshruhle Defense, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 g6,,,, -D00,"Lamb Defense, BDG",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Nc6,,,, -D00,"Mason Attack, Queen Pawn Game",1.d4 d5 2.f4,,,, -D00,Zurich Gambit,1.d4 d5 2.g4,,,, -D00,Chigorin; Ponziani; Veresov,1.d4 d5 2.Nc3,,,, -D00,"Alburt Defense, QP",1.d4 d5 2.Nc3 Bf5,,,, -D00,Anti-Veresov,1.d4 d5 2.Nc3 Bg4,�,,, -D00,"Irish Gambit, QP",1.d4 d5 2.Nc3 c5,,,, -D00,"Shaviliuk Gambit, QP",1.d4 d5 2.Nc3 e5,,,, -D00,"Dutch System, QP",1.d4 d5 2.Nc3 f5,,,, -D00,"Fianchetto Defense, QP",1.d4 d5 2.Nc3 g6 3.Nf3 Bg7,,,, -D00,Shropshire Defense,1.d4 d5 2.Nc3 h5�,,,, -D00,Hubsch Gambit,1.d4 d5 2.Nc3 Nf6 3.e4 Nxe4,,,, -D00,Amazon Attack,1.d4 d5 2.Qd3,,,, -D00,Siberian Attack,1.d4 d5 2.Qd3 Nc6 3.Nc3,,,, -D01,Betbeder; Veresov; Levitzky; Parisian,1.d4 d5 2.c4 dxc4 3.e4 f5,,,, -D01,Richter-Veresov Opening; D01,1.d4 d5 2.Nc3 Nf6 3.Bg5,,,, -D01,"Veresov Variation, QP",1.d4 d5 2.Nc3 Nf6 3.Bg5 Bf5 4.Bxf6,,,, -D01,"Richter Variation, Veresov",1.d4 d5 2.Nc3 Nf6 3.Bg5 Bf5 4.f3,,,, -D01,"Classical Defense, Veresov",1.d4 d5 2.Nc3 Nf6 3.Bg5 e6 4.Nf3,,,, -D01,"Two Knights System, Veresov",1.d4 d5 2.Nc3 Nf6 3.Bg5 Nbd7 4.Nf3,,,, -D01,"Grunfeld Defense, Veresov",1.d4 d5 2.Nc3 Nf6 3.Bg5 Nbd7 4.Nf3 g6,,,, -D01,"Boyce Defense, Veresov",1.d4 d5 2.Nc3 Nf6 3.Bg5 Ne4,,,, -D02,"Zukertort Variation, QP; D02",1.d4 d5 2.Nf3,,,, -D02,"Anti-Torre, QP",1.d4 d5 2.Nf3 Bg4,,,, -D02,Anti-Torre,1.d4 d5 2.Nf3 Bg4 3.Ne5 Bf5 4.g4,,,, -D02,Queen's Gambit Reversed; Krause Variation,1.d4 d5 2.Nf3 c5,,,, -D02,"Chandler Gambit, QP",1.d4 d5 2.Nf3 c5 3.g3 cxd4 4.Bg2,,,, -D02,"Chigorin Variation, QP",1.d4 d5 2.Nf3 Nc6,,,, -D02,"Symmetrical Variation, QP",1.d4 d5 2.Nf3 Nf6,,,, -D02,London System; Queen's Bishop Opening,1.d4 d5 2.Nf3 Nf6 3.Bf4,,,, -D02,"Poisoned Pawn Variation, QP",1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e3 Qb6 5.Nc3,,,, -D02,"Zilbermints Variation, QP",1.d4 d5 2.Nf3 Nf6 3.c4 b5,,,, -D02,Pseudo-Catalan,1.d4 d5 2.Nf3 Nf6 3.g3,,,, -D02,Barry Attack,1.d4 Nf6 2.Nf3 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Be2,,,, -D03,"Torre Attack, QP; D03",1.d4 d5 2.Nf3 Nf6 3.Bg5,,,, -D03,"Breyer Variation, QP",1.d4 d5 2.Nf3 Nf6 3.Bg5 e6 4.e3 c5 5.c3 Qb6,,,, -D03,"Grunfeld Variation, QP",1.d4 d5 2.Nf3 Nf6 3.Bg5 g6,,,, -D03,"Gossip Variation, QP",1.d4 d5 2.Nf3 Nf6 3.Bg5 Ne4,,,, -D04,Colle System; D04,1.d4 d5 2.Nf3 Nf6 3.e3,,,, -D04,"Bishop Defense, QP; Anti-Colle",1.d4 d5 2.Nf3 Nf6 3.e3 Bf5,,,, -D05,"Classical Defense, Colle System; D05",1.d4 d5 2.Nf3 Nf6 3.e3 e6,,,, -D05,"Zukertort Variation, QP",1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3,,,, -D05,"Rubinstein Attack, Colle",1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.b3,,,, -D06,Queen's Gambit; Aleppo Gambit; D06,1.d4 d5 2.c4,,,, -D06,"Zilbermints Gambit, QGD",1.d4 d5 2.c4 b5,,,, -D06,"Brieger Defense; Sahovic Defense, QGD; Baltic Defense",1.d4 d5 2.c4 Bf5,,,, -D06,"Pseudo-Slav, QGD",1.d4 d5 2.c4 Bf5 3.Nc3 e6 4.Nf3 c6,,,, -D06,"Pseudo-Chigorin, QGD",1.d4 d5 2.c4 Bf5 3.Nc3 e6 4.Nf3 Nc6,,,, -D06,"Queen Attack, Baltic Defens, QGD",1.d4 d5 2.c4 Bf5 3.Nc3 e6 4.Qb3,,,, -D06,"Austrian Defense; Summetrical Defense, QGD",1.d4 d5 2.c4 c5,,,, -D06,"Gusev Countergambit, QGD",1.d4 d5 2.c4 c5 3.cxd5 Nf6,,,, -D06,"Haberditz Variation, QGD",1.d4 d5 2.c4 c5 3.cxd5 Nf6 4.e4 Nxe4 5.dxc5 Qa5+,,,, -D06,"Salvio Countergambit, QGD",1.d4 d5 2.c4 c5 3.dxc5 d4,,,, -D06,"Alekhine Defense, QGD",1.d4 d5 2.c4 g6�,,,, -D06,"Tartakower Gambit, QGD",1.d4 d5 2.c4 Nc6 3.Nc3 e5,,,, -D06,"Modern Gambit, Chigorin Defense",1.d4 d5 2.c4 Nc6 3.Nc3 Nf6 4.Nf3 dxc4,,,, -D06,"Alekhine Variation, Chigorin Defense",1.d4 d5 2.c4 Nc6 3.Nf3 Bg4 4.Qa4,,,, -D06,"Lazard Gambit, Chigorin Defense",1.d4 d5 2.c4 Nc6 3.Nf3 e5,,,, -D06,"Marshall Defense; Knight Defense, QGD",1.d4 d5 2.c4 Nf6��,,,, -D06,"Cocquio Counter Gambit, QGD; Tan Gambit",1.d4 d5 2.c4 Nf6 3.cxd5 c6,,,, -D07,"Chigorin Defense, QGD; D07",1.d4 d5 2.c4 Nc6,,,, -D07,"Exchange Variation, Chigorin Defense",1.d4 d5 2.c4 Nc6 3.cxd5 Qxd5,,,, -D07,Costa's Line,1.d4 d5 2.c4 Nc6 3.cxd5 Qxd5 4.e3 e5 5.Nc3 Bb4 6.Bd2 Bxc3 7.Bxc3 exd4 8.Ne2,,,, -D07,"Janowski Variation, QGD",1.d4 d5 2.c4 Nc6 3.Nc3 dxc4 4.Nf3,,,, -D08,"Albin Countergambit; Cavalotti Var, QGD; D08",1.d4 d5 2.c4 e5,,,, -D08,"Lasker Trap, QGD",1.d4 d5 2.c4 e5 3.dxe5 d4 4.e3 Bb4+ 5.Bd2 dxe3,,,, -D08,"Normal Line, Albin Countergambit, QGD",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3,,,, -D08,"Tartakower Defense, QGD",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 c5,,,, -D08,"Alapin Variation, QGD",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.Nbd2,,,, -D09,"Fianchetto Variation, Albin Countergambit; D09",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.g3,,,, -D10,"Slav Defense; Czech Defense, QGD; D10",1.d4 d5 2.c4 c6,,,, -D10,"Exchange Variation, Slav",1.d4 d5 2.c4 c6 3.cxd5,,,, -D10,Slav Pawn Game,1.d4 d5 2.c4 c6 3.e3,,,, -D10,"Diemer Gambit, Slav",1.d4 d5 2.c4 c6 3.e4,,,, -D10,"Alekhine Attack, Slav",1.d4 d5 2.c4 c6 3.Nc3 dxc4 4.e4,,,, -D10,"Winawer Counter Gambit, Slav",1.d4 d5 2.c4 c6 3.Nc3 e5,,,, -D10,"Anti-Winawer Gambit, Slav",1.d4 d5 2.c4 c6 3.Nc3 e5 4.e4,,,, -D11,"Modern Line, Slav; D11",1.d4 d5 2.c4 c6 3.Nf3,,,, -D11,Slav Bishop's Game,1.d4 d5 2.c4 c6 3.Nf3 Bf5,,,, -D11,"Bonet Gambit, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Bg5,,,, -D11,"Quiet Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3,,,, -D11,"Breyer Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nbd2,,,, -D12,"Schallopp Defense, Slav; D12",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5,,,, -D12,"Amsterdam Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5 5.cxd5 cxd5 6.Nc3,,,, -D12,"Rotterdam Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5 5.cxd5 cxd5 6.Qb3��,,,, -D12,"Landau Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5 5.cxd5 cxd5 6.Qb3 Qc8 7.Bd2 e6 8.Na3,,,, -D12,"Pin Defense, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bg4,,,, -D13,"Exchange Variation, Slav; D13",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5,,,, -D14,"Symmetrical Line, Slav; D14",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5,,,, -D14,"Trifunovic Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5 7.e3 e6 8.Qb3 Bb4,,,, -D15,"Three Knights Variation, Slav; D15",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3,,,, -D15,"Chameleon Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 a6,,,, -D15,"Advance System, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 c5,,,, -D15,"Two Knights Attack, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4,,,, -D15,"Alekhine Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e3,,,, -D15,"Alekhine Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e3 b5 6.a4 b4,,,, -D15,"Geller Variation; Geller-Tolush Var, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e4,,,, -D15,"Schlechter Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 g6,,,, -D15,"Suchting Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 Qb6,,,, -D16,"Alapin Variation, Slav; D16",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4,,,, -D16,"Steiner Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bg4,,,, -D16,"Soultanbeieff Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 e6,,,, -D16,"Smyslov Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Na6,,,, -D17,Czech Defense; Open Slav Defense; D17,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5,,,, -D17,"Krause Attack, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5,,,, -D17,"Wiesbaden Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 e6,,,, -D17,"Sharp Line, Wiesbaden Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 e6 7.f3 Bb4 8.e4,,,, -D17,"Fazekas Gambit, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 Na6 7.e4,,,, -D17,"Carlsbad Variation, Slav",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 Nbd7 7.Nxc4 Qc7 8.g3 e5,,,, -D17,"Baarn Variation, Slav; Bled Attack",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Nh4,,,, -D18,"Dutch Variation, Slav; D18",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3,,,, -D18,"Mareschall Variation, Slav; Lasker Variation",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 Na6,,,, -D19,"Main Line, Czech Variation, Slav; D19",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O 9.Qe2,,,, -D20,Queen's Gambit Accepted; D20,1.d4 d5 2.c4 dxc4��,,,, -D20,"Old Variation, QGA",1.d4 d5 2.c4 dxc4 3.e3,,,, -D20,"Billinger Gambit, QGA",1.d4 d5 2.c4 dxc4 3.e3 e5 4.Bc4 exd4 5.Qb3 Qe7 6.a3,,,, -D20,"Korchnoi Gambit, QGA",1.d4 d5 2.c4 dxc4 3.e3 e5 4.Bc4 exd4 5.Qb3 Qe7 6.Kf1,,,, -D20,"Novikov Gambit, QGA",1.d4 d5 2.c4 dxc4 3.e3 e5 4.Bc4 exd4 5.Qb3 Qe7 6.Nd2,,,, -D20,"Christensen Gambit, QGA",1.d4 d5 2.c4 dxc4 3.e3 e5 4.Bc4 exd4 5.Qb3 Qe7 6.Nf3,,,, -D20,"Saduleto Variation, QGA; Central Variation, QGA",1.d4 d5 2.c4 dxc4 3.e4,,,, -D20,"Greco Variation, QGA",1.d4 d5 2.c4 dxc4 3.e4 b5,,,, -D20,"Rubinstein Variation, QGA��",1.d4 d5 2.c4 dxc4 3.e4 c5,,,, -D20,"Yefimov Gambit, QGA",1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 b5,,,, -D20,"Linares Variation, QGA",1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5,,,, -D20,"McDonnell Defense, QGA",1.d4 d5 2.c4 dxc4 3.e4 e5,,,, -D20,"Somov Gambit, QGA",1.d4 d5 2.c4 dxc4 3.e4 e5 4.Bxc4,,,, -D20,"Versov; Betbeder; Schwartz Defense, QGA",1.d4 d5 2.c4 dxc4 3.e4 f5,,,, -D20,"Modern Defense, QGA",1.d4 d5 2.c4 dxc4 3.e4 Nc6,,,, -D20,"Alekhine System, QGA",1.d4 d5 2.c4 dxc4 3.e4 Nf6,,,, -D20,"Gunsberg Defense; Prianishenmo Gambit, QGA",1.d4 d5 2.c4 dxc4 3.Nc3 c5 4.d5 Nf6 5.Nc3 e6 6.e4 exd5 7.e5,,,, -D21,"Blackburne's Move, QGA; Normal Variation, QGA; D21",1.d4 d5 2.c4 dxc4 3.Nf3,,,, -D21,"Alekhine Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 a6,,,, -D21,"Slav Gambit, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 b5,,,, -D21,"Gunsberg Defense, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 c5,,,, -D21,"Prianishenmo Gambit, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 c5 4.d5 Nf6 5.Nc3 e6 6.e4 exd5 7.e5,,,, -D21,"Rosenthal Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 e6,,,, -D21,"Godes Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nd7,,,, -D22,D22,1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3,,,, -D22,"Haberditz Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 b5,,,, -D22,"Alekhine Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Bg4,,,, -D22,"Borisenko-Furman Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e4,,,, -D23,D23,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6,,,, -D23,"Mannheim Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Qa4+,,,, -D24,"Showalter Variation, QGA; D24",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3,,,, -D24,"Bogoljubow Defense, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.e4,,,, -D25,D25,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3,,,, -D25,"Flohr; Winawer Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Be6,,,, -D25,"Larsen; Janowski; Modern Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Bg4,,,, -D25,"Smyslov Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 g6,,,, -D25,Queen's Gambit Accepted Deferred,1.d4 d5 2.Nf3 Nf6 3.c4 dxc4,,,, -D26,Traditional System QGA; D26,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6,,,, -D26,"Classical Defense, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5,,,, -D26,"Steinitz Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O cxd4,,,, -D26,"Development Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O Nc6,,,, -D27,"Rubinstein Variation, QGA; D27",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6,,,, -D27,"Furman Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.dxc5 Bxc5,,,, -D27,"Russian Gambit, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.e4,,,, -D28,"Alekhine System, Classical Defense, QGA; D28",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2,,,, -D28,"Accelerated Fianchetto, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5,,,, -D28,"Counter Fianchetto Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 Nc6 8.dxc5,,,, -D28,"Four Knights Variation, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 Nc6 8.Nc3,,,, -D29,D29,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Bb7,,,, -D29,"Smyslov Variation, Classical Defense, QGA",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Bb7 9.Rd1 Nbd7 10.Nc3 Bd6,,,, -D30,D30,1.d4 d5 2.c4 e6,,,, -D30,"Pseudo-Tarrasch, QGD",1.d4 d5 2.c4 e6 3.Nf3 c5,,,, -D30,"Bishop Attack, Tarrasch",1.d4 d5 2.c4 e6 3.Nf3 c5 4.cxd5 exd5 5.Bg5,,,, -D30,"Anti-Noteboom Gambit, Semi-Slav",1.d4 d5 2.c4 e6 3.Nf3 c6 4.Nc3 dxc4 5.g3,,,, -D30,"Traditional Variation, QGD",1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5,,,, -D30,"Vienna Variation, QGD��",1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5 Bb4+,,,, -D30,"Duras Variation, QGD; Capablanca Variation",1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5 h6,,,, -D30,"Hastings Variation, QGD",1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5 h6 5.Bxf6 Qxf6 6.Nc3 c6 7.Qb3,,,, -D30,"Capablanca Variation, QGD",1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nbd2,,,, -D30,"Pseudo-Meran; Semi-Slav, QGD",1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.e3 c6,,,, -D30,"Quiet Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.e3 c6 5.Nbd2,,,, -D30,"Semmering Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.e3 c6 5.Nbd2 Nbd7 6.Bd3 c5,,,, -D31,"Baltic Defense, QGD",1.d4 d5 2.c4 Bf5 3.cxd5 Bxb1 4.Qa4+ c6 5.dxc6 Nxc6,,,, -D31,"Argentinian Gambit, QGD",1.d4 d5 2.c4 Bf5 3.cxd5 Bxb1 4.Qa4+ c6 5.dxc6 Nxc6 6.Rxb1 Qxd4,,,, -D31,"Queen's Knight Variation, QGD; D31",1.d4 d5 2.c4 e6 3.Nc3,,,, -D31,"Janowski Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 a6,,,, -D31,"Alapin Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 b6,,,, -D31,"Alatortsev; Petrosian, Charousek Var, QGD",1.d4 d5 2.c4 e6 3.Nc3 Be7,,,, -D31,"Miladinovic Gambit, QGD",1.d4 d5 2.c4 e6 3.Nc3 Be7 4.e4 dxe4 5.f3,,,, -D31,Semi-Slav Defense,1.d4 d5 2.c4 e6 3.Nc3 c6��,,,, -D31,"Portisch Gambit, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.g4,,,, -D31,"Marshall Gambit, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4��,,,, -D31,"Gunderam Gambit, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.f3,,,, -D31,"Tolush Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Bd2 Qxd4 7.Bxb4 Qxe4+8.Be2 c5 9.Bxc5 Qxg2,,,, -D31,"Noteboom Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4,,,, -D31,"Abrahams; Noteboom; Klaus Junge Var, QGD",1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e3 b5 7.Bd2 a5,,,, -D31,"Anti-Noteboom Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.Bg5,,,, -D31,"Beliavsky Line, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.Bg5 f6,,,, -D32,"Tarrasch Defense, QGD; D32",1.d4 d5 2.c4 e6 3.Nc3 c5,,,, -D32,"Schara-Hennig; Duisburg Gambit, QGD",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 cxd4,,,, -D32,"Von Hennig Gambit, QGD",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 cxd4 5.Qxd4 Nc6 6.Qd1 exd5 7.Qxd5 Be6,,,, -D32,"Tarrasch Gambit, QGD",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.dxc5 d4 6.Na4 b5,,,, -D32,"Marshall Gambit, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.e4,,,, -D32,"Two Knights Variation, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3,,,, -D32,"Grunfeld Gambit, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.dxc5 d4 7.Na4 b5,,,, -D32,"Symmetrical Variation, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.e3 Nf6 5.Nf3 Nc6,,,, -D33,"Lodz; Schlecter; Rubinstein Var, QGD; D33",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3,,,, -D33,"Folkestone; Swedish Var, QGD",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 c4,,,, -D33,"Prague Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6,,,, -D33,"Wagner Variation, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Bg4,,,, -D34,D34,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7,,,, -D34,"Rubinstein; Normal Position, QGD",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O,,,, -D34,"Carlsbad Variation, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.Bg5,,,, -D34,"Endgame Variation, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.Bg5 Be6,,,, -D34,"Bogoljubow Variation, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.Bg5 Be6 10.Rc1 c4,,,, -D34,"Advance Variation, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.Bg5 c4,,,, -D34,"Spassky Variation, Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.Bg5 cxd4 10.Nxd4,,,, -D34,"Reti Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.dxc5 Bxc5 10.Na4,,,, -D34,Classical Tarrasch Gambit,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.dxc5 d4,,,, -D35,D35,1.d4 d5 2.c4 e6 3.Nc3 Nf6,,,, -D35,"Harrwitz; Rubinstein Var, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bf4,,,, -D35,"Exchange Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5,,,, -D35,"Positional Variation, Exchange Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5,,,, -D35,"Saemisch Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Nf3 Nbd7 6.Bf4,,,, -D36,"Reshevsky Variation, QGD; D36",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2,,,, -D37,"Three Knights Variation, QGD; D37",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3,,,, -D37,"Harrwitz Attack, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4,,,, -D38,"Ragozin Variation, QGD; D38",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4,,,, -D38,"Alekhine Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4 5.Qa4,,,, -D39,"Vienna Variation, QGD; D39",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4 5.Bg5 dxc4,,,, -D40,"Semi-Tarrasch Variation, QGD; D40",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5,,,, -D40,"Pillsbury Variation, Semi-Tarrasch",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.Bg5,,,, -D41,D41,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5��,,,, -D41,"San Sebastian Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.cxd4 Bb4+ 9.Bd2 Bxd2+,,,, -D42,D42,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3,,,, -D43,D43,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6,,,, -D43,"Anti-Meran Gambit, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5,,,, -D44,Semi-Slav Defense Accepted; D44,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4,,,, -D44,"Botvinnik Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5,,,, -D44,"Ekstrom Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.exf6 gxh4 10.Ne5,,,, -D44,"Lilienthal Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 hxg5 10.Bxg5 Nbd7,,,, -D44,"Alatortsev System, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 Nd5,,,, -D44,Anti-Moscow Gambit,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bh4,,,, -D44,"Stonewall Defense, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Ne4 6.Bd3 f5,,,, -D44,"Vienna Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 dxc4,,,, -D45,D45,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3,,,, -D45,"Acclerated Meran, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 a6,,,, -D45,"Normal Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7,,,, -D45,Rubinstein; anti-Meran,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Ne5,,,, -D45,"Stoltz Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2,,,, -D45,"Center Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2 Bd6 7.e4,,,, -D45,"Mikhalchishin Line, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2 Bd6 7.e4 dxe4 8.Nxe4 Nxe4 9.Qxe4 e5 10.dxe5,,,, -D45,"Shabalov Attack, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2 Bd6 7.g4,,,, -D46,D46,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3,,,, -D46,"Romi Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Bb4,,,, -D46,"Chigorin Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Bd6,,,, -D46,"Bogoljubow Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Be7,,,, -D47,"Meran Variation, QGD; D47",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4,,,, -D47,Lundin; Neo-Meran,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 b4,,,, -D47,"Wade Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7,,,, -D47,"Larsen Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7 9.e4 b4 10.Na4 c5,,,, -D48,"Reynolds Variation, QGD; D48",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6,,,, -D48,"Pirc Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 b4,,,, -D48,"Old Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5,,,, -D48,"Reynolds Variation, Semi-Slav",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 d5,,,, -D48,"Old Meran Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.O-O,,,, -D49,"Blumenfeld Variation, QGD; D49",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5,,,, -D49,"Sozin Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5,,,, -D49,"Stahlberg Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5 12.Nxe5 axb5,,,, -D50,"Modern Variation, QGD; D50",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5,,,, -D50,"Uhlmann Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 h6 6.Bh4 O-O 7.Rc1 dxc4,,,, -D50,Been & Koomen; Dutch & Peruvian,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5,,,, -D50,"Pseudo-Tarrasch Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.cxd5��,,,, -D50,"Canal; Venice Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.cxd5 Qb6,,,, -D50,"Primitive Pillsbury Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.Nf3 cxd4 6.Qxd4,,,, -D51,"Knight Defense, QGD; D51",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7,,,, -D51,"Manhattan; Westphalia Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 Bb4,,,, -D51,"Westphalian Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 Bb4 6.Nf3 c5,,,, -D51,"Alekhine Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.Nf3 c6 6.e4,,,, -D51,"Alekhine Gambit, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.Nf3 h6 6.Bh4 dxc4,,,, -D52,D52,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3,,,, -D52,"Cambridge Springs; Pillsbury Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5,,,, -D52,"Bogoljubov Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 Bb4 8.Qc2,,,, -D52,"Argentine Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 Bb4 8.Qc2 O-O 9.Bh4,,,, -D53,D53,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7,,,, -D53,"Heral Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Bxf6,,,, -D53,"Lasker Defense, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 Ne4,,,, -D54,"Neo-Orthodox Variation, QGD; D54",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Rc1,,,, -D55,D55,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3,,,, -D55,"Pillsbury Attack, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 b6 7.Bd3 Bb7 8.cxd5 exd5 9.Ne5,,,, -D55,"Neo Orthodox Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6,,,, -D55,"Anti-Tartakower Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6,,,, -D55,"Petrosian Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6 Bxf6 8.Rc1 c6 9.Bd3 Nd7 10.O-O dxc4,,,, -D56,D56,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4,,,, -D56,"Lasker Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7,,,, -D56,"Teichmann Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.Qc2,,,, -D57,D57,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.cxd5,,,, -D57,"Bernstein Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3,,,, -D58,"Tartakower Variation, QGD; D58",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6,,,, -D59,"Exchange Variation, Tartakower Defense, QGD; D59",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 Nxd5,,,, -D60,"Orthodox Variation, QGD; D60",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7,,,, -D60,"Botvinnik Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Bd3,,,, -D60,"Rauzer Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qb3,,,, -D61,"Rubinstein Variation, Orthodox Defense, QGD; D61",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2,,,, -D62,D62,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2 c5 8.cxd5,,,, -D63,D63,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1,,,, -D63,"Henneberger; Swiss Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 a6,,,, -D63,"Capablanca Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 b6 8.cxd5 exd5 9.Bb5,,,, -D63,"Pillsbury Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 b6 8.cxd5 exd5 9.Bd3,,,, -D63,"Rubinstein Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6,,,, -D64,"Janowski Variation, Orthodox Defense, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.h4,,,, -D64,"Rubinstein Attack, Orthodox Defense, QGD;� D64",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Qc2,,,, -D65,D65,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Qc2 a6 9.cxd5,,,, -D66,D66,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3,,,, -D66,"Fianchetto Variation, Orthodox Defense, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 b5,,,, -D67,"Capablanca Freeing Maneuver, QGD; D67",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5,,,, -D67,"Alekhine Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.Ne4�,,,, -D67,"Classical Variation, QGD",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3,,,, -D68,D68,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5,,,, -D69,D69,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5 13.dxe5,,,, -D70,King's Indian Defense; West Indian Defense; D70,1.d4 Nf6 2.c4 g6,,,, -D70,Anti-Grunfeld Variation,1.d4 Nf6 2.c4 g6 3.d5���,,,, -D70,Danube Gambit; Adorjan Gambit,1.d4 Nf6 2.c4 g6 3.d5 b5,,,, -D70,Danube; Donau Gambit,1.d4 Nf6 2.c4 g6 3.d5 b5 4.cxb5 a6 5.bxa6 c6,,,, -D70,Nimzovich Attack; Anti-Grunfeld; Alekhine Variation,1.d4 Nf6 2.c4 g6 3.f3,,,, -D70,Goglidze Attack,1.d4 Nf6 2.c4 g6 3.f3 d5,,,, -D70,Leko Gambit,1.d4 Nf6 2.c4 g6 3.f3 e5,,,, -D70,Kemeri; Neo-Grunfeld�,1.d4 Nf6 2.c4 g6 3.g3 d5,,,, -D70,"Lutikov Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.f3,,,, -D70,"Murey Attack, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.f3 c5 5.cxd5 Nxd5 6.Na4,,,, -D70,Neo-Grunfeld Defense,1.d4 Nf6 2.c4 g6 3.Nf3 d5,,,, -D70,Iago Defense,1.d4 Nf6 2.c4 Nc6,,,, -D71,Counterthrust Variation,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7,,,, -D71,"Exchange Variation, Neo-Grunfeld",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5,,,, -D71,D71,1.d4 Nf6 2.c4 Nc6 3.g3 d5,,,, -D72,D72,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5 6.e4 Nb6,,,, -D73,D73,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3,,,, -D74,"Delayed Exchange Variation, Neo-Grunfeld; D74",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O,,,, -D75,D75,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O c5,,,, -D76,D76,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O Nb6,,,, -D77,"Classical Variation, Neo-Grunfeld; D77",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O,,,, -D78,"Original Defesne, Neo-Grunfeld; D78",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6,,,, -D78,"Modern Defense, Neo-Grunfeld",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O dxc4,,,, -D78,"Polgar Variation, Neo-Grunfeld",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O Nc6,,,, -D79,D79,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.cxd5,,,, -D79,"Ultra-delayed Exchange Variation, Neo-Grunfeld",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.cxd5 cxd5,,,, -D80,Grunfeld Defense; D80,1.d4 Nf6 2.c4 g6 3.Nc3 d5,,,, -D80,"Stockholm Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5,,,, -D80,"Lundin Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5 Ne4 5.Nxe4 dxc3 6.Qd2 c5,,,, -D80,"Makogonov Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.b4,,,, -D80,"Opocensky Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Bd2,,,, -D80,"Paris Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Bd3,,,, -D80,"Schlechter Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Bd3 c6,,,, -D80,"Flohr Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Bd3 c6 7.O-O Bf5,,,, -D80,"Smyslov Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Bd3 c6 7.O-O Bg4,,,, -D80,"Vienna Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Qb3,,,, -D80,"Pachman Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Qb3 dxc4 7.Bxc4 Nbd7 8.Ng5,,,, -D80,"Botvinnik Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Qb3 e6,,,, -D80,"Schlechter Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 c6,,,, -D80,"Kemeri Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.g3,,,, -D80,Gibbon Gambit; Grunfeld Spike,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.g4,,,, -D80,"Zaitsev Gambit, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.h4,,,, -D81,"Accelerated Russian Variation, Grunfeld; D81",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Qb3,,,, -D82,"Brinckmann Attack, Grunfeld; D82",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4��,,,, -D83,Grunfeld Gambit; D83,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O,,,, -D83,"Capablanca Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Rc1,,,, -D83,"Botvinnik Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Rc1 c5 7.dxc5 Be6,,,, -D83,"Reshevsky Gambit, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Rc1 c5 7.dxc5 Qa5,,,, -D84,D84,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.cxd5 Nxd5,,,, -D85,"Exchange Variation, Grunfeld; D85",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5,,,, -D85,"Exchange Variation, Grunfeld;",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3,,,, -D85,"Modern Main Line, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3,,,, -D85,"Kramnik's Line, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3 c5 8.h3,,,, -D85,"Kemeri Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.g3,,,, -D85,Nadanian Attack,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.Na4,,,, -D86,"Classical Main Line, Grunfeld; D86",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4,,,, -D86,"Simagin Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 b6 9.h4 Ba6,,,, -D86,"Simagin Improved Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Nc6,,,, -D86,"Larsen Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Qd7,,,, -D86,"Larsen Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Qd7 9.O-O b6,,,, -D87,"Spassky Variation, Grunfeld; D87",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5,,,, -D87,"Seville Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3,,,, -D88,D88,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 cxd4,,,, -D89,D89,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 cxd4 11.cxd4 Bg4 12.f3 Na5 13.Bd3,,,, -D89,"Sokolsky Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 cxd4 11.cxd4 Bg4 12.f3 Na5 13.Bd3 Be6 14.d5,,,, -D90,"Three Knights Variation, Grunfeld; D90",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3,,,, -D90,"Flohr Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qa4+,,,, -D90,Slav Fianchetto,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Nf6 5.Nc3 g6,,,, -D91,"Petrosian System, Grunfeld; D91",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5,,,, -D92,"Hungarian Attack, Grunfeld; D92",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4�,,,, -D93,D93,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3,,,, -D94,"Burille Variation, Grunfeld; D94",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3,,,, -D94,"Makogonov Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.b4,,,, -D94,"Opocensky Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Bd2,,,, -D95,D95,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Qb3,,,, -D96,"Russian Variation, Grunfeld; D96",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3,,,, -D97,D97,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4,,,, -D97,"Hungarian Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6,,,, -D97,"Levenfish Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 b6,,,, -D97,"Szabo (Boleslavsky) Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 c6,,,, -D97,"Prins Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Na6,,,, -D97,"Simagin (Byrne) Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Nc6,,,, -D98,"Smyslov Variation, Grunfeld; D98",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4,,,, -D98,"Keres Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be2 Nfd7 9.Be2 Nb6 10.Qd3 Nc6 11.O-O-O Qc8,,,, -D99,D99,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 Nfd7 9.Qb3,,,, -D99,"Yugoslav Variation, Grunfeld",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 Nfd7 9.Qb3 c5,,,, -E00,East Indian Defense; E00,1.d4 Nf6 2.c4 e6,,,, -E00,Seirawan Attack,1.d4 Nf6 2.c4 e6 3.Bg5,,,, -E00,Catalan Opening,1.d4 Nf6 2.c4 e6 3.g3,,,, -E00,"Hungarian Gambit, Catalan",1.d4 Nf6 2.c4 e6 3.g3 e5,,,, -E00,"Devin Gambit, Catalan",1.d4 Nf6 2.c4 e6 3.g4,,,, -E01,E01,1.d4 Nf6 2.c4 e6 3.g3 d5,,,, -E02,E02,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4,,,, -E03,E03,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4,,,, -E03,"Alekhine Variation, Catalan",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6 7.Qc2,,,, -E04,"Open Defense, Catalan; E04",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3,,,, -E05,"Classical Line, Catalan; E05",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Be7,,,, -E05,"Modern Sharp Variation, Catalan",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Nc6 6.Qa4 Bb4+,,,, -E06,"Closed Variation, Catalan",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2,,,, -E06,E06,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7,,,, -E06,"Tarrasch Defense, Catalan",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 c5 5.Nf3 Nc6,,,, -E07,E07,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7,,,, -E07,"Botvinnik Variation, Catalan",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Nc3 c6 8.Qd3,,,, -E08,E08,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2,,,, -E08,"Zagoriansky Variation, Catalan",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Rd1 b6 9.a4,,,, -E09,E09,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2,,,, -E09,"Sokolsky Variation, Catalan",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2 b6 8.Nbd2 b6 9.b3 a5 10.Bb2 Ba6,,,, -E10,Anti-Nimzo-Indian; E10,1.d4 Nf6 2.c4 e6 3.Nf3,,,, -E10,Dzindzi-Indian Defense,1.d4 Nf6 2.c4 e6 3.Nf3 a6,,,, -E10,Blumenfeld Variation,1.d4 Nf6 2.c4 e6 3.Nf3 c5,,,, -E10,Blumenfeld Countergambit,1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5,,,, -E10,Dus-Chotimursky Variation,1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5 5.Bg5,,,, -E10,"Spielmann Variation, Blumenfeld",1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5 5.Bg5 exd5 6.cxd5 h6,,,, -E10,Blumenfeld Countergambit Accepted,1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5 5.dxe6 fxe6 6.cxb5 d5,,,, -E10,"Rubinstein Variation, Blumenfeld",1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5 5.e4,,,, -E10,Dory (Doery) Defense,1.d4 Nf6 2.c4 e6 3.Nf3 Ne4,,,, -E11,Bogoljubow Defense; Bogo-Indian Defense; E11,1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+,,,, -E11,Monticelli Trap,1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Bxd2+ 5.Qxd2 b6 6.g3 Bb7 7.Bg2 O-O 8.Nc3 Ne4 9.Qc2 Nxc3 10.Bg5,,,, -E11,"Nimzovich Variation, Bogo-Indian",1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7,,,, -E11,"Grunfeld Variation, Bogo-Indian",1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2,,,, -E12,Queen's Indian Defense; E12,1.d4 Nf6 2.c4 e6 3.Nf3 b6,,,, -E12,"Petrosian Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3,,,, -E12,"Farago Defense, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Ba6 5.Qc2 Bb7,,,, -E12,"Murey Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 Nxd5 7.Qc2 c5 8.e4 Nxc3 9.bxc3 Nc6 10.Bb2 cxd4 11.cxd4 Rc8 12.Rd1 Bd6,,,, -E12,"Miles Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Bf4,,,, -E12,"Kasparov Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3,,,, -E12,"Kasparov-Petrosian Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3,,,, -E12,"Polovodin Gambit, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 Nxd5 7.e4,,,, -E12,"Hedgehog Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 g6,,,, -E12,"Botvinnik Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 g5 7.Bg3 Nh5,,,, -E13,E13,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 Bb4,,,, -E14,"Spassky System, QID; E14",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3,,,, -E14,"Averbakh Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c5 6.O-O Be7 7.b3 O-O 8.Bb2 cxd4 9.Nxd4,,,, -E15,"Fianchetto System, QID; E15",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3,,,, -E15,"Nimzovich Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6,,,, -E15,"Quiet Line, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3,,,, -E15,"Nimzovich Attack, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qa4+,,,, -E15,"Timman's Line, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qb3,,,, -E15,"Saemisch Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 c5,,,, -E16,"Fianchetto Traditional, QID; E16",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7,,,, -E16,"Capablanca Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+,,,, -E16,"Yates Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5,,,, -E16,"Riumin Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7,,,, -E16,"Buerger Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 c5 6.d5 exd5 7.Ng5,,,, -E16,"Rubinstein Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 c5 6.d5 exd5 7.Nh4,,,, -E16,"Fine Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Qc8 6.O-O c5 7.d5,,,, -E17,"Traditional Variation, QID; E17",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7,,,, -E17,Anti-Queen's Indian System,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3,,,, -E17,"Opocensky Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 Ne4 7.Bd2,,,, -E17,"Classical Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O,,,, -E17,"Euwe Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.b3,,,, -E17,"Taimanov Gambit, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.d5 exd5 8.Nd4,,,, -E17,"Polugaevsky Gambit, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.d5 exd5 8.Nh4,,,, -E17,"Kramnik Variation, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Re1,,,, -E18,E18,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3,,,, -E18,"Tiviakov Defense, QID",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Na6,,,, -E19,E19,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2,,,, -E20,E20,1.d4 Nf6 2.c4 e6 3.Nc3,,,, -E20,Nimzo-Indian Defense,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4,,,, -E20,"Kmoch Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3,,,, -E20,"Steiner Variation, Nimzo-Indian; Romanishin Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3,,,, -E20,"Romanishin Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.g3 O-O 6.Bg2,,,, -E20,"English Hybrid, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.g3 O-O 6.Bg2 cxd4 7.Nxd4 d5 8.cxd5 Nxd5,,,, -E20,"Ragozin Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 d5,,,, -E21,"Three Knights Variation, Nimzo-Indian; E21",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3,,,, -E21,"Korchnoi Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.d5,,,, -E21,"Shocron Gambit, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.d5 b5,,,, -E21,"Euwe Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.d5 Ne4,,,, -E22,"Spielmann Variation, Nimzo-Indian; E22",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3,,,, -E23,"Romanovsky Gambit, Nimzo-Indian; E23",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6,,,, -E23,"San Remo Variation, Nimzo-Indian; Stahlberg Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6 6.Nf3 Ne4 7.Bd2 Nxc5,,,, -E23,"Stahlberg Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6 6.Nf3 Ne4 7.Bd2 Nxc5 8.Qc2 f5 9.g3,,,, -E23,"Carlsbad Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6 6.Nf3 Ne4 7.Bd2 Nxd2,,,, -E23,"Stahlberg Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6 6.Nf3 Ne4 7.Bd2 Nxd2 8.Nxd2 O-O 9.O-O-O,,,, -E24,"Saemisch Variation, Nimzo-Indian; E24",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3,,,, -E24,"Accelerated Saemisch Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3,,,, -E24,"Botvinnik Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.e3 O-O 8.cxd5 Nxd5,,,, -E25,E25,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5,,,, -E25,"Keres Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5 8.dxc5,,,, -E25,"Romanovsky Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5 8.dxc5 f5,,,, -E26,"Saemisch Variation, Nimzo-Indian; E26",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3,,,, -E26,"O'Kelly Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3 b6,,,, -E26,"Capablanca Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3 Nc6 7.Bd3 O-O 8.Ne2 b6 9.e4 Ne8,,,, -E27,E27,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O,,,, -E28,E28,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O 6.e3,,,, -E29,E29,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O 6.e3 c5 7.Bd3 Nc6,,,, -E29,"Capablanca Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O 6.e3 c5 7.Bd3 Nc6 8.Ne2 b6 9.e4 Ne8,,,, -E30,"Leningrad Variation, Nimzo-Indian; E30",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5,,,, -E30,"Averbakh Gambit, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 b5,,,, -E31,"Benoni Defense, Nimzo-Indian; E31",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 d6,,,, -E32,"Classical Variation, Nimzo-Indian; E32",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2,,,, -E33,"Milner-Barry, Zurich Variation, Nimzo-Indian; E33",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6,,,, -E33,"Milner-Barry Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d6,,,, -E33,"Old Zurich Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d6 6.a3,,,, -E33,"Vitolinsh-Adorjan Gambit, Nimzo Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 O-O 5.a3 Bxc3+ 6.Qxc3 b5,,,, -E33,"Keres Defense, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 O-O 5.a3 Bxc3+ 6.Qxc3 b6,,,, -E34,"Noa Variation, Nimzo-Indian; E34",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5,,,, -E35,E35,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5,,,, -E35,"Romanishin Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Nf3 Qf5,,,, -E35,"Beliavsky Gambit, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Nf3 Qf5 7.Qd1 e5,,,, -E36,E36,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3,,,, -E36,"Botvinnik Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 Nc6,,,, -E37,E37,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 Ne4,,,, -E37,"San Remo Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 Ne4 7.Qc2 Nc6 8.e3 e5,,,, -E38,"Berlin Variation, Nimzo-Indian; E38",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5,,,, -E38,"Steiner Variation, Nimzo-Indian��",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Bxc3+,,,, -E39,"Pirc Variation, Nimzo-Indian; E39",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O,,,, -E40,"Rubinstein Variation, Nimzo-Indian; E40",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3,,,, -E40,"Keres Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 d5 5.a3 Bxc3+ 6.bxc3 c5 7.cxd5 exd5 8.Bd3 O-O 9.Ne2 b6,,,, -E40,"Taimanov Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 Nc6,,,, -E40,"Ragozin Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 Nc6 5.Nf3 O-O 6.Bd3 d5 7.O-O dxc4,,,, -E41,"Huebner Variation, Nimzo-Indian; E41",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5,,,, -E41,"Huebner Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3,,,, -E41,"Panov Attack, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Nf3 cxd4 6.exd4 d5,,,, -E42,"Rubinstein Variation, Nimzo-Indian; E42",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2,,,, -E42,"Sherbakov Attack, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.c5,,,, -E43,"St. Petersburg Variation, Nimzo-Indian; E43",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6,,,, -E44,"Fischer Variation, Nimzo-Indian; E44",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2,,,, -E45,"Bronstein Variation, Nimzo-Indian; E45; Byrne Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Ba6,,,, -E46,"Normal Variation, Nimzo-Indian; E46",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O,,,, -E46,"Reshevsky Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2,,,, -E46,"Simagin Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 d5 6.a3 Bd6,,,, -E46,"Reshevsky Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nge2,,,, -E46,"Simagin Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nge2 d5 6.a3 Bd6,,,, -E47,"Bishop Attack, Nimzo-Indian; E47",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3,,,, -E48,"Classical Defense, Nimzo-Indian; E48",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5,,,, -E48,"Olafsson Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 b6 9.Qe2 Bb7 10.Rd1 Qc8,,,, -E48,"Bronstein Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 Bd7,,,, -E48,"Bronstein Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 Nbd7 9.Ne2,,,, -E48,"Smyslov Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 Qe7,,,, -E49,"Botvinnik System, Nimzo-Indian; E49",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.a3 Bxc3+ 7.bxc3,,,, -E50,E50,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3,,,, -E50,"Huebner Deferred, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 c5,,,, -E51,"Ragozin Variation, Nimzo-Indian; E51",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5,,,, -E51,"Saemisch Deferred, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.a3,,,, -E52,"Schlechter Defense, Nimzo-Indian; E52",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6,,,, -E53,Bernstein Defense; Gligoric System; E53,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5,,,, -E53,"Keres Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O b6,,,, -E54,E54,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4,,,, -E55,"Bronstein Variation, Nimzo-Indian; E55",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nbd7,,,, -E55,"Smyslov Variation, Nimzo-Indian",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Qe7,,,, -E56,"Bernstein Variation, Nimzo-Indian; E56",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6,,,, -E57,E57,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6 8.a3 dxc4 9.Bxc4 cxd4,,,, -E58,E58,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3,,,, -E59,E59,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3 dxc4 10.Bxc4,,,, -E60,King's Indian Defense; West Indian Defense; E60,1.d4 Nf6 2.c4 g6,,,, -E60,"Fianchetto Variation, KID",1.d4 Nf6 2.c4 g6 3.g3,,,, -E60,Counterthrust Variation,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d5,,,, -E60,Kemeri Variation,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d5 5.cxd5 Nxd5 6.Nf3 O-O 7.O-O c5,,,, -E60,Yugoslav Variation,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.Nc3 c5,,,, -E60,Bronstein Variation,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.Nc3 c6 7.O-O Qa5,,,, -E60,Panno Variation,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.Nc3 Nc6 7.O-O a6 8.h3 Rb8,,,, -E60,Spassky Variation,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.Nc3 Nc6 7.O-O Bf5,,,, -E60,Simagin Variation,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.Nc3 Nc6 7.O-O Bg4,,,, -E60,Szabo Variation,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.Nc3 Nc6 7.O-O e5,,,, -E60,Panno System,1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.O-O Nc6 7.d5 Na5,,,, -E60,"Pomar Variation, KID",1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nge2,,,, -E60,"King's Knight Variation, KID",1.d4 Nf6 2.c4 g6 3.Nf3,,,, -E60,"Santassiere Variation, KID",1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.b4,,,, -E61,E61,1.d4 Nf6 2.c4 g6 3.Nc3,,,, -E61,"Smyslov Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Bg5,,,, -E61,"Smyslov Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.Bg5,,,, -E62,"Delayed Fianchetto, KID; E62",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3,,,, -E62,"Larsen Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c6 7.O-O Bf5,,,, -E62,"Kavalek Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c6 7.O-O Qa5,,,, -E62,"Benjamin Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c6 7.O-O Qb6,,,, -E62,"Carlsbad Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6,,,, -E62,"Lesser Simagin (Spassky) Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O Bf5,,,, -E62,"Simagin Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O Bg4,,,, -E62,"Uhlmann-Szabo System, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O e5,,,, -E63,"Panno Variation, KID; E63",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O a6,,,, -E64,"Yugoslav Variation, KID; E64",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5,,,, -E65,E65,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O,,,, -E66,E66,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O Nc6 8.d5,,,, -E67,"Debrecen Defense, KID; E67",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7�,,,, -E68,E68,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4,,,, -E69,E69,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.h3,,,, -E70,"Normal Variation, KID; E70",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4,,,, -E70,"Accelerated Averbakh Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Bg5,,,, -E70,"Kramer Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.Nge2,,,, -E71,"Makogonov Variation, KID; E71",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.h3,,,, -E72,"Deferred Fianchetto, KID; E72",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.g3,,,, -E72,"Pomar System, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.g3 O-O 6.Bg2 e5 7.Nge2,,,, -E73,E73,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2,,,, -E73,"Semi-Averbakh System, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3,,,, -E73,"Averbakh Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5,,,, -E73,"Spanish Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 a6,,,, -E73,"Flexible Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6,,,, -E73,"Burgess Line, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 c6,,,, -E73,"Geller Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Nbd7,,,, -E74,"Benoni Defense, KID; E74",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5,,,, -E75,E75,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 c6,,,, -E76,"Four Pawns Attack, KID; E76",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4,,,, -E76,"Six Pawns Attack, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 c5 6.d5 O-O 7.Be2 e6 8.dxe6 fxe6 9.g4 Nc6 10.h4,,,, -E76,"Modern Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 Na6,,,, -E76,"Dynamic Attack, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.d5,,,, -E77,"Six Pawns Attack, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6,,,, -E77,E77,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2,,,, -E77,"Florentine Gambit, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.d5 e6 8.Nf3 exd5 9.e5,,,, -E78,"Fluid Attack, KID; E78",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.Nf3,,,, -E79,"Exchange Variation, Four Pawns Attack, KID; E79",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.Nf3 cxd4 8.Nxd4 Nc6 9.Be3,,,, -E80,"Saemisch Variation, KID; E80",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3,,,, -E80,"Bronstein Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 e5 6.d5 Nh5 7.Be3 Na6 8.Qd2 Qh4+ 9.g3 Nxg3 10.Qf2 Nxf1 11.Qxh4 Nxe3 12.Kf2 Nxc4,,,, -E81,"Normal Defesne, Sameisch Variation, KID; E81",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O,,,, -E81,"Byrne Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Bd3 a6,,,, -E81,"Steiner Attack, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5,,,, -E81,"Bobotsov-Korchnoi-Petrosian Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Nge2,,,, -E82,"Double Fianchetto, KID; E82",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 b6,,,, -E83,"Yates Defense, KID; E83",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6,,,, -E83,"Panno Formation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a6,,,, -E83,"Ruban Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 Rb8,,,, -E84,E84,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a6 8.Qd2 Rb8,,,, -E85,"Orthodox Variation, KID; E85",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5,,,, -E86,E86,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.Nge2 c6,,,, -E87,"Closed Variation, KID; E87",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5,,,, -E87,"Bronstein Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 Nh5 8.Qd2 Qh4+ 9.g3 Nxg3 10.Qf2 Nxf1,,,, -E88,E88,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6,,,, -E89,E89,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6 8.Nge2,,,, -E90,E90,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3,,,, -E90,"Larsen Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be3,,,, -E90,"Zinnowitz Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Bg5,,,, -E91,"Orthodox Variation, KID; E91",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2,,,, -E91,"Kazakh Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Na6,,,, -E92,E92,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5,,,, -E92,"Gligoric-Taimanov Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3,,,, -E92,"Petrosian Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5,,,, -E92,"Stein Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 a5,,,, -E93,E93,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nbd7,,,, -E93,"Keres Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nbd7 8.Bg5 h6 9.Bh4 g5 10.Bg3 Nh5 11.h4,,,, -E94,E94,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O,,,, -E94,"Ukranian Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O a5,,,, -E94,"Donner Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O c6,,,, -E94,"Glek Defense, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Na6,,,, -E95,E95,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1,,,, -E96,E96,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1 c6 9.Bf1 a5,,,, -E97,"Aronin-Taimanov Variation, KID; E97",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6,,,, -E97,"Normal Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7,,,, -E97,"Bayonet Attack, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.b4,,,, -E97,"Yepishin's Line, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.b4 Nh5 10.Qc2,,,, -E97,"Sokolov's Line, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.b4 Nh5 10.Re1,,,, -E97,"Korchnoi Attack, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Bd2,,,, -E98,E98,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1,,,, -E98,"Kozul Gambit, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Be3 f5,,,, -E99,"Benko Attack, KID; E99",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3,,,, -E99,"Benko Variation, KID",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5 11.g4,,,, \ No newline at end of file diff --git a/opening/csv/openings_long_alg.csv b/opening/csv/openings_long_alg.csv deleted file mode 100644 index b391918..0000000 --- a/opening/csv/openings_long_alg.csv +++ /dev/null @@ -1,2575 +0,0 @@ -Code,Name,PGN -A00,Anderssen's Opening,1.a2a3 -A00,"Polish Gambit, Anderssen's Opening",1.a2a3 a7a5 2.b2b4 -A00,Creepy Crawly Formation,1.a2a3 e7e5 2.h2h3 d7d5 -A00,Andersspike,1.a2a3 g7g6 2.g2g4 -A00,Ware; Meadow Hay; Crab,1.a2a4 -A00,"Wing Gambit, Ware Opening",1.a2a4 b7b5 -A00,"Cologne Gambit, Ware Opening",1.a2a4 b7b6 2.d2d4 d7d5 3.b1c3 b8d7 -A00,Ware Gambit,1.a2a4 e7e5 2.a4a5 d7d5 3.e2e3 f7f5 4.a5a6 -A00,Polish; Orangutan; Sokolsky; Hunt,1.b2b4 -A00,"Birmingham Gambit, Polish",1.b2b4 c7c5 -A00,"Schuhler Gambit, Polish",1.b2b4 c7c6 2.c1b2 a7a5 3.b4b5 c6b5 4.e2e4 -A00,"Myers Variation, Polish",1.b2b4 d7d5 2.c1b2 c7c6 3.a2a4 -A00,"Bugayev Attack, Polish",1.b2b4 e7e5 2.a2a3 -A00,"Wolferts Gambit, Polish",1.b2b4 e7e5 2.c1b2 c7c5 -A00,Schiffler-Sokolsky; Tartakower Gambit,1.b2b4 e7e5 2.c1b2 f7f6 3.e2e4 f8b4 -A00,"Brinckmann Variation, Polish",1.b2b4 e7e5 2.c1b2 f7f6 3.e2e4 f8b4 4.f1c4 b8c6 5.f2f4 d8e7 6.f4f5 g7g6 -A00,"Bucker Defense, Polish",1.b2b4 b8a6 -A00,"Grigorian Variation, Polish",1.b2b4 b8c6 -A00,Polish Spike,1.b2b4 g8f6 2.c1b2 g7g6 3.g2g4 -A00,"Karniewski; Tubingen Variation, Polish",1.b2b4 g8h6 -A00,Saragossa; Hempel's Opening,1.c2c3 -A00,Hanham; Hayward,1.c2c3 e7e5 2.d1c2 -A00,Venezolana,1.d2d3 c7c5 2.b1c3 b8c6 3.g2g3 -A00,Reversed Rat,1.d2d3 e7e5 -A00,Spike Deferred; Myers Spike Attack,1.d2d3 g7g6 2.g2g4 -A00,Keoni-Hiva Gambit,1.e2e3 d7d5 2.b1c3 g8f6 3.a2a3 e7e5 4.f2f4 e5f4 5.g1f3 -A00,Van't Kruijs Opening,1.e2e3 e7e5 -A00,Bouncing Bishop Variation,1.e2e3 e7e5 2.f1c4 b7b5 3.c4b3 -A00,Amsterdam Attack,1.e2e3 e7e5 2.c2c4 d7d6 3.b1c3 b8c6 4.b2b3 g8f6 -A00,Ekolu Variation,1.e2e3 e7e5 2.b1c3 d7d5 3.f2f4 e5f4 4.g1f3 -A00,Alua Variation,1.e2e3 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 -A00,Akahi Variation,1.e2e3 e7e5 2.b1c3 g8f6 3.f2f4 e5f4 4.g1f3 -A00,King's Head Opening,1.f2f3 e7e5 2.e2e4 -A00,Hammerschlag; Pork Chop Opening,1.f2f3 e7e5 2.e1f2 -A00,Gambit 59,1.g2g3 d7d5 2.f1g2 e7e5 3.b2b4 -A00,Regan Variation,1.g2g3 d7d5 2.f1g2 e7e5 3.d2d4 -A00,Reversed Alekhine,1.g2g3 e7e5 2.g1f3 -A00,Lasker Simul Special,1.g2g3 h7h5 -A00,Grob; Ahlhausen; Colibri; Fric; Genoa; Spike,1.g2g4 -A00,Grob Gambit,1.g2g4 d7d5 2.f1g2 c8g4 -A00,"Romford Counter-Gambit, Grob",1.g2g4 d7d5 2.f1g2 c8g4 3.c2c4 d5d4 -A00,"Spike, Grob",1.g2g4 d7d5 2.f1g2 c7c6 3.g4g5 -A00,"Short Spike, Grob",1.g2g4 d7d5 2.f1g2 c7c6 3.h2h3 -A00,"Zilbermints Gambit, Grob",1.g2g4 d7d5 2.e2e4 -A00,"Keene Defense, Grob",1.g2g4 d7d5 2.h2h3 e7e5 -A00,"Hurst Attack, Grob",1.g2g4 e7e5 2.f1g2 d7d5 3.c2c4 -A00,"Alessi Gambit, Grob",1.g2g4 f7f5 -A00,Double Grob,1.g2g4 g7g5 -A00,Spike Deferred,1.g2g4 g7g6 2.d2d3 -A00,"Bucker Defense, Grob",1.g2g4 g8h6 -A00,Clemenz Opening,1.h2h3 -A00,Kadas Opening,1.h2h4 -A00,Despres Opening,1.h2h4 -A00,Koola-Koola,1.h2h4 a7a5 -A00,Wulumulu,1.h2h4 e7e5 2.d2d4 -A00,Durkin's Opening; Sodium Attack,1.b1a3 -A00,Dunst; Heinrichsen; Will Bull; Kotrc,1.b1c3 -A00,"St. George Defense, Dunst",1.b1c3 a7a6 -A00,"Novosibirsk Variation, Dunst",1.b1c3 c7c5 2.d2d4 c5d4 3.d1d4 b8c6 4.d4h4 -A00,"Twyble Attack, Dunst",1.b1c3 c7c5 2.a1b1 -A00,Dunst Gambit,1.b1c3 d7d5 2.e2e4 d5e4 3.d2d3 -A00,"Pseudo-Diemer Gambit, Dunst",1.b1c3 d7d5 2.e2e4 d5e4 3.f2f3 e4f3 4.d1f3 -A00,"Amazon, Dunst",1.b1c3 d7d5 2.e2e4 d5e4 3.c3e4 d8d5 -A00,"Battambang, Dunst",1.b1c3 e7e5 2.a2a3 -A00,Irish Attack; Polish Attack,1.b1c3 e7e5 2.f2f4 -A00,"Napoleon Attack, Dunst",1.b1c3 e7e5 2.g1f3 -A00,"Glasscoe Gambit, Dunst",1.b1c3 f7f5 2.g2g4 -A00,"Anti-Pirc Variation, Dunst",1.b1c3 g7g6 2.h2h4 -A00,"Tubingen Gambit, Dunst",1.b1c3 g8f6 2.g2g4 -A00,Amar; Paris Opening,1.g1h3 -A00,Drunken Knight Opening,1.g1h3 -A00,Krazy Kat,1.g1h3 e7e5 2.f2f3 d7d5 3.h3f2 -A01,Larsen; Queen's Fianchetto; Nimzo-Larsen Attack A01,1.b2b3 -A01,"Symmetrical Variation, Larsen",1.b2b3 b7b6 -A01,"English Variation, Larsen",1.b2b3 c7c5 -A01,"Classical Variation, Larsen",1.b2b3 d7d5 -A01,"Modern Variation, Larsen",1.b2b3 e7e5 -A01,"Ringelbach Gambit, Larsen",1.b2b3 e7e5 2.c1b2 f7f5 3.e2e4 -A01,"Paschmann Gambit, Larsen",1.b2b3 e7e5 2.c1b2 b8c6 3.f2f4 -A01,"Dutch Variation, Larsen",1.b2b3 f7f5 -A01,"Spike Variation, Larsen",1.b2b3 g8f6 2.c1b2 g7g6 3.g2g4 -A02,�Bird's Opening; Dutch Attack,1.f2f4 -A02,"From's Gambit, Bird",1.f2f4 e7e5 -A02,Canard Formation; Double Duck,1.f2f4 f7f5 2.d2d4 d7d5 -A02,"Pawn Thrust Attack, Bird",1.f2f4 f7f5 2.d2d4 d7d5 -A02,"Swiss Gambit, Bird",1.f2f4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.g2g4 -A02,"Hobbs Gambit, Bird",1.f2f4 g7g5 -A02,"Batavo Polish Attack, Bird",1.f2f4 g8f6 2.g1f3 g7g6 3.b2b4 -A03,A03,1.f2f4 d7d5 -A03,Sturm; Mujannah�,1.f2f4 d7d5 2.c2c4 -A03,"Prokofiev Gambit, Bird",1.f2f4 d7d5 2.e2e4 d5e4 3.d2d3 -A03,"Williams Gambit, Bird",1.f2f4 d7d5 2.e2e4 d5e4 3.b1c3 -A03,"Horsefly Defense, Bird",1.f2f4 g8h6 -A04,Wade Defense,1.g1f3 d7d6 -A04,Polish G; Dalesio G; Pirc-Lisitsin G,1.g1f3 f7f5 2.e2e4 f5e4 3.f3g5 -A04,"Herrstrom Gambit, Reti",1.g1f3 g7g5 -A04,Oberndorfer Gambit; Reti,1.g1f3 g7g5 -A04,Lessing Defense,1.g1f3 b8c6 -A05,King's Indian Attack; Reti; Zukertort; A05,1.g1f3 g8f6 -A06,A06,1.g1f3 d7d5 -A06,"Nimzovich Opening, Reti",1.g1f3 d7d5 2.b2b3 -A06,"Bloodgood Gambit, Reti",1.g1f3 d7d5 2.b2b3 c7c5 3.e2e4 d5e4 4.f3e5 -A06,"Santasiere's Folly, Reti",1.g1f3 d7d5 2.b2b4 -A06,Old Indian Attack,1.g1f3 d7d5 2.d2d3 -A06,Tennison G; Lemberg G; Abonyi G,1.g1f3 d7d5 2.e2e4 -A06,"Reversed Mexican Defense, Reti",1.g1f3 d7d5 2.b1c3 -A06,"Ampel Variation, Reti",1.g1f3 d7d5 2.h1g1 -A06,"Improved Lisitsin G, Reti",1.g1f3 f7f5 2.d2d3 -A07,"Barcza Opening, Reti; A07",1.g1f3 d7d5 2.g2g3 -A08,A08,1.g1f3 d7d5 2.g2g3 c7c5 -A09,Reti Polonaise,1.g1f3 d7d5 2.c2c4 d5d4 3.b2b4 -A09,"Penguin Variation, Reti",1.g1f3 d7d5 2.c2c4 d5d4 3.h1g1 -A09,Reti Gambit Accepted,1.g1f3 d7d5 2.c2c4 d5c4 -A09,"Neo-Catalan, Reti",1.g1f3 d7d5 2.c2c4 e7e6 3.g2g3 -A10,English Opening; A10,1.c2c4 -A10,"Halibut Gambit, English",1.c2c4 b7b5 -A10,"Anglo Scandanavian Defense, English",1.c2c4 d7d5 -A10,"Loehn Gambit, English",1.c2c4 d7d5 2.c4d5 e7e6 -A10,"Schulz Gambit, English",1.c2c4 d7d5 2.c4d5 g8f6 -A10,"Malvinas Variation, English",1.c2c4 d7d5 2.c4d5 d8d5 3.b1c3 d5a5 -A10,Anglo-Dutch Defense,1.c2c4 f7f5 -A10,Anglo-Polish Dutch,1.c2c4 f7f5 2.b2b4 -A10,"Hickmann Gambit, English",1.c2c4 f7f5 2.e2e4 -A10,"Hickmann Gambit, English",1.c2c4 f7f5 2.e2e4 f5e4 3.d2d3 -A10,"Porcupine Variation, English",1.c2c4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.g2g4 -A10,"Wade Gambit, English",1.c2c4 f7f5 2.g2g4 -A10,English Spike,1.c2c4 f7f5 2.g2g4 -A10,"Chabanon Gambit, English",1.c2c4 f7f5 2.g1f3 d7d6 3.e2e4 -A10,"Myers Defense, English",1.c2c4 g7g5 2.d2d4 f8g7 -A10,"Zilbermints Gambit, English",1.c2c4 g7g5 2.d2d4 e7e5 -A10,"Adorjan System, English",1.c2c4 g7g6 2.e2e4 e7e5 -A10,Beefeater,1.c2c4 g7g6 2.b1c3 f8g7 3.d2d4 c7c5 4.d4d5 g7c3 5.b2c3 f7f5 -A10,"Anglo-Lithuanian Variation, English",1.c2c4 b8c6 -A11,"Anglo-Slav, English; A11",1.c2c4 c7c6 -A12,A12,1.c2c4 c7c6 2.g1f3 d7d5 3.b2b3 -A12,"Bled Variation, English",1.c2c4 c7c6 2.g1f3 d7d5 3.b2b3 g8f6 4.g2g3 g7g6 -A13,"Agincourt; Kurajica Defense, English; A13",1.c2c4 e7e6 -A13,English Defense,1.c2c4 e7e6 2.d2d4 b7b6 -A13,"King's Knight Variation, English",1.c2c4 e7e6 2.g1f3 d7d5 -A13,"Wimpy System, English",1.c2c4 e7e6 2.g1f3 d7d5 3.b2b3 g8f6 4.c1b2 c7c5 5.e2e3 -A13,"Afincourt Variation, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 -A13,"Kurajica Defense, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 c7c6 -A13,"Neo Catalan, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 -A13,"Neo Catalan Accepted, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 4.f1g2 d5c4 -A13,"Romanishin Gambit, English",1.c2c4 e7e6 2.g1f3 g8f6 3.g2g3 a7a6 4.f1g2 b7b5 -A14,A14,1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 4.f1g2 f8e7 -A14,"Neo Catalan Declined, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 4.f1g2 f8e7 5.e1g1 -A14,"Keres Defense, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 4.f1g2 f8e7 5.e1g1 c7c5 6.c4d5 f6d5 7.b1c3 b8c6 -A15,"Anglo System, English; A15",1.c2c4 g8f6 -A15,"Mikenas-Carls Variation, English",1.c2c4 g8f6 -A15,English Orangutan,1.c2c4 g8f6 2.b2b4 -A15,Shirazi Shove,1.c2c4 g8f6 2.g2g3 h7h5 -A15,"King's Knight Variation, English",1.c2c4 g8f6 2.g1f3 -A15,"Romanishin Variation, English",1.c2c4 g8f6 2.g1f3 e7e6 3.g2g3 a7a6 -A16,A16,1.c2c4 g8f6 2.b1c3 -A16,"Golombek Defense, English; Anti English",1.c2c4 g8f6 2.b1c3 d7d5 -A16,"Czech Variation, English",1.c2c4 g8f6 2.b1c3 d7d5 3.c4d5 f6d5 4.g2g3 g7g6 5.f1g2 d5b6 -A16,"Korchnoi's Variation, English",1.c2c4 g8f6 2.b1c3 d7d5 3.c4d5 f6d5 4.g1f3 g7g6 5.g2g3 f8g7 6.f1g2 e7e5 -A16,"Stein Attack, English",1.c2c4 g8f6 2.b1c3 d7d5 3.c4d5 f6d5 4.g1f3 g7g6 5.d1a4 -A16,Anti-anti-grunfeld,1.c2c4 g8f6 2.b1c3 g7g6 3.g1f3 f8g7 4.e2e4 -A17,"Smyslov Defense, English",1.c2c4 g8f6 2.b1c3 d7d5 3.c4d5 f6d5 4.g2g3 g7g6 5.f1g2 d5c3 -A17,"Hegehog System, Anglo-Indian English; A17",1.c2c4 g8f6 2.b1c3 e7e6 -A17,Nimzo-English Opening,1.c2c4 g8f6 2.b1c3 e7e6 3.g1f3 f8b4 -A17,"Zviagintsev-Krasenkov Attack, English",1.c2c4 g8f6 2.b1c3 e7e6 3.g1f3 f8b4 4.g2g4 -A18,"Flohr-Mikenas-Carls Variation, English; A18",1.c2c4 g8f6 2.b1c3 e7e6 3.e2e4 -A18,"Kevitz Defense, English",1.c2c4 g8f6 2.b1c3 e7e6 3.e2e4 b8c6 -A18,"Queen's Indian Formation, English",1.c2c4 g8f6 2.b1c3 e7e6 3.g1f3 b7b6 -A19,"Floh-Mikenas-Carls Variation, English; A19",1.c2c4 g8f6 2.b1c3 e7e6 3.e2e4 c7c5 -A19,"Nei Gambit, English",1.c2c4 g8f6 2.b1c3 e7e6 3.e2e4 c7c5 4.e4e5 f6g8 -A20,"Kahiko-Hula Gambit, English",1.c2c4 e7e5 2.e2e3 g8f6 3.f2f4 e5f4 4.g1f3 -A20,"Double Whammy, English",1.c2c4 e7e5 2.f2f4 -A20,"Drill Variation, English",1.c2c4 e7e5 2.g2g3 h7h5 -A20,"Nimzovich Variation, English",1.c2c4 e7e5 2.g1f3 -A20,"Nimzovich-Flohr Variation, English",1.c2c4 e7e5 2.g1f3 e5e4 -A20,English Queen,1.c2c4 e7e5 2.d1a4 -A21,"Reversed Sicilian, English; A21",1.c2c4 e7e5 2.b1c3 -A21,"Kramnik-Shirov Variation, English",1.c2c4 e7e5 2.b1c3 f8b4 -A21,"Troger Variation, English",1.c2c4 e7e5 2.b1c3 d7d6 3.g2g3 c8e6 4.f1g2 b8c6 -A21,"Keres Defense, English",1.c2c4 e7e5 2.b1c3 d7d6 3.g2g3 c7c6 -A21,"General Variation, King's English",1.c2c4 e7e5 2.b1c3 d7d6 3.g1f3 -A21,"Smyslov Variation, English",1.c2c4 e7e5 2.b1c3 d7d6 3.g1f3 c8g4 -A21,Anglo-Dutch,1.c2c4 e7e5 2.b1c3 f7f5 -A22,"Two Knights Variation, English; A22",1.c2c4 e7e5 2.b1c3 g8f6 -A22,"Mazedonisch Variation, English",1.c2c4 e7e5 2.b1c3 g8f6 3.f2f4 -A22,"Bremen; Carls Variation, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 -A22,"Kapengut; Smyslov; Modern V, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 f8b4 -A22,"Bellon Gambit, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g1f3 e5e4 4.f3g5 b7b5 -A22,"Erbenheimer Gambit, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g1f3 e5e4 4.f3g5 f6g4 -A23,"Keres Variation, English; A23",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 c7c6 -A23,"Reversed Dragon, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 d7d5 -A24,"Fianchetto Lines, Two Knights Variation, English; A24",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 g7g6 -A24,"Prickly Pawn Pass System, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.e2e4 e8g8 7.g1e2 c7c6 8.e1g1 a7a6 -A25,"Reversed Closed Sicilian, English; A25",1.c2c4 e7e5 2.b1c3 b8c6 -A25,"Taimanov Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 -A25,"Hungarian Attack, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.a1b1 -A25,"Closed System, Full Symmetry, King's English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 -A25,"Botvinnik System, King's English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.e2e4 -A25,"Bremen-Hort Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.e2e3 d7d6 6.g1e2 c8e6 -A25,"Botvinnik Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.e2e4 -A26,"Closed System, King's English; A26",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 -A27,"Three Knights System, English; A27",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 -A28,"Four Knights Variation, English; A28",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 -A28,"Korchnoi Line, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.a2a3 -A28,"Flexible Line, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.d2d3 -A28,"Bradley Beach Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.d2d4 e5e4 -A28,"Quiet Line, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.e2e3 -A28,"Romanishin Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.e2e3 f8b4 5.d1c2 b4c3 -A28,"Keene; Stean Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.e2e3 f8b4 5.d1c2 e8g8 6.c3d5 f8e8 7.c2f5 -A28,"Botvinnik Line, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.e2e4 -A29,"Fianchetto Line, Four Knights English; A29",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.g2g3 -A30,"Wing Variation, English",1.c2c4 c7c5 2.b2b4 -A30,"Napolitano Gambit, Symmetrical English",1.c2c4 c7c5 2.g1f3 g8f6 3.b2b4 -A30,"Hedgehog Variation, Symmetrical English",1.c2c4 c7c5 2.g1f3 g8f6 3.g2g3 b7b6 4.f1g2 c8b7 5.e1g1 e7e6 6.b1c3 f8e7 -A30,"Double Fianchetto Defense, English",1.c2c4 c7c5 2.g1f3 g8f6 3.g2g3 b7b6 4.f1g2 c8b7 5.e1g1 g7g6 -A31,"Anti-Benoni Variation, Symmetrical English; A31",1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 -A31,"Two Knights Variation, English",1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 c5d4 4.f3d4 -A32,"Spielmann Defense, Symmetrical English; A32",1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 c5d4 4.f3d4 e7e6 -A33,A33,1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 c5d4 4.f3d4 e7e6 5.b1c3 b8c6 -A33,"Geller Variation, Symmetrical English",1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 c5d4 4.f3d4 e7e6 5.b1c3 b8c6 6.g2g3 d8b6 -A34,"Normal Variation, Symmetrical English; A34",1.c2c4 c7c5 2.b1c3 -A34,"Fianchetto Variation, Symmetrical English��",1.c2c4 c7c5 2.b1c3 g8f6 3.g2g3 -A34,"Rubinstein Variation, Symmetrical English",1.c2c4 c7c5 2.b1c3 g8f6 3.g2g3 d7d5 4.c4d5 f6d5 5.f1g2 d5c7 -A34,"Asymmetrical Variation, English",1.c2c4 c7c5 2.b1c3 g8f6 3.g1f3 d7d5 4.c4d5 f6d5 -A34,"Keres-Parma System, English",1.c2c4 c7c5 2.b1c3 g8f6 3.g1f3 e7e6 4.g2g3 b8c6 -A36,"Fianchetto Variation, Symmetrical English; A36",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 -A36,"Symmetrical Variation, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 -A36,"Botvinnik System Reversed, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.e2e3 e7e5 -A36,"Botvinnik Variation, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.e2e4 -A37,"Two Knights Line, Symmetrical English; A37",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 -A38,"Full Symmetry Line, Symmetrical English; A38",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 g8f6 -A38,"Double Fianchetto, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 g8f6 6.e1g1 e8g8 7.b2b3 -A38,"Duchamp Variation, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 g8f6 6.e1g1 e8g8 7.d2d3 -A39,"Mecking Variation, Symmetrical English; A39",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 g8f6 6.e1g1 e8g8 7.d2d4 -A40,"Hartlaub Gambit, English",1.c2c4 b7b6 2.d2d4 c8b7 3.b1c3 e7e6 4.e2e4 f7f5 5.e4f5 g8f6 -A40,Queen Pawn Opening; A40,1.d2d4 -A40,St George's Gambit,1.d2d4 a7a6 2.c2c4 b7b5 3.e2e4 e7e6 4.c4b5 a6b5 -A40,"Spassky Gambit, Polish Defense",1.d2d4 b7b5 2.e2e4 c8b7 3.f1b5 -A40,"Queen Fianchetto, Queen Pawn Game",1.d2d4 b7b6 -A40,Charlick Gambit; Englund Gambit,1.d2d4 e7e5 -A40,Englund Gambit Declined,1.d2d4 e7e5 2.d4d5 -A40,Diemer Counterattack,1.d2d4 e7e5 2.d4d5 f8c5 3.e2e4 d8h4 -A40,Thuring Gambit; Hartlaub-Charlick Gambit,1.d2d4 e7e5 2.d4e5 d7d6 -A40,Soller; Purchas Gambit,1.d2d4 e7e5 2.d4e5 f7f6 -A40,Felbecker Gambit,1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 f8c5 -A40,Soller Gambit Deferred,1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 f7f6 -A40,"Zilbermints Gambit II, Englund Gambit",1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 h7h6 -A40,"Zilbermints Gambit, Englund Gambit",1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 g8e7 -A40,Englund Gambit,1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 d8e7 -A40,"Stockhom Variation, Englund Gambit",1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 d8e7 4.d1d5 -A40,"Mosquito Gambit, Englund",1.d2d4 e7e5 2.d4e5 d8h4 -A40,Horwitz Defense,1.d2d4 e7e6 -A40,Franco-Indian Defense,1.d2d4 e7e6 -A40,"Seneschaud Variation, Dutch",1.d2d4 e7e6 2.c1f4 f7f5 3.g2g4 -A40,English Defense,1.d2d4 e7e6 2.c2c4 b7b6 -A40,Perrin Variation,1.d2d4 e7e6 2.c2c4 b7b6 3.e2e4 c8b7 4.f1d3 b8c6 -A40,Poli Gambit,1.d2d4 e7e6 2.c2c4 b7b6 3.e2e4 c8b7 4.f2f3 f7f5 5.e4f5 g8h6 -A40,Hartlaub Gambit Declined,1.d2d4 e7e6 2.c2c4 b7b6 3.b1c3 c8b7 4.e2e4 f7f5 5.d4d5 -A40,Hartlaub Gambit Accepted,1.d2d4 e7e6 2.c2c4 b7b6 3.b1c3 c8b7 4.e2e4 f7f5 5.e4f5 g8f6 -A40,"Keres Defense, Indian; Kangaroo Defense",1.d2d4 e7e6 2.c2c4 f8b4 -A40,"Transpositional Variation, Keres Defense",1.d2d4 e7e6 2.c2c4 f8b4 3.b1c3 -A40,Zilbermints Gambit,1.d2d4 e7e6 2.c2c4 e6e5 -A40,Borg Gambit,1.d2d4 g7g5 -A40,Queen Pawn Fianchetto,1.d2d4 g7g6 -A40,Kotov-Robatsch Defense,1.d2d4 g7g6 2.c2c4 f8g7 -A40,Pseudo-Saemisch,1.d2d4 g7g6 2.c2c4 f8g7 3.e2e4 d7d6 4.c1e3 g8f6 5.f2f3 -A40,Rossolimo Variation,1.d2d4 g7g6 2.c2c4 f8g7 3.e2e4 d7d6 4.g1f3 c8g4 -A40,Neo-Modern Defense,1.d2d4 g7g6 2.c2c4 f8g7 3.e2e4 e7e5 -A40,Beefeater Variation,1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 c7c5 4.d4d5 g7c3 5.b2c3 f7f5 -A40,Modern Defense,1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 -A40,"Kotov Variation, Modern",1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 4.e2e4 b8c6 -A40,Lizard Defense; Pirc-Diemer Gambit,1.d2d4 g7g6 2.h2h4 g8f6 3.h4h5 -A40,Bogoljubov; Mikenas-Van Geet Defense,1.d2d4 b8c6 -A40,Lundin Defense,1.d2d4 b8c6 -A40,"Lithuanian Variation, Mikenas",1.d2d4 b8c6 2.c2c4 e7e5 3.d4d5 c6e7 -A40,"Cannstatter Variation, Mikenas",1.d2d4 b8c6 2.c2c4 e7e5 3.d4d5 c6d4 -A40,Pozarek Gambit,1.d2d4 b8c6 2.c2c4 e7e5 3.d4e5 c6e5 4.b1c3 e5c4 -A40,Montevideo Defense,1.d2d4 b8c6 2.d4d5 c6b8 -A40,Zaire Defense,1.d2d4 b8c6 2.d4d5 c6b8 3.e2e4 g8f6 4.e4e5 f6g8 -A40,Polish Variation,1.e2e4 g7g6 2.d2d4 f8g7 3.c2c4 c7c5 4.g1f3 d8b6 -A40,"Dunworth Variation, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.c2c4 d7d5 4.e4d5 c7c6 5.d5c6 g7d4 -A41,Anglo-Slav Opening,1.d2d4 c7c6 2.c2c4 d7d6 -A41,Wade Defense,1.d2d4 d7d6 2.g1f3 c8g4 -A41,"Averbakh Variation, Modern",1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 4.e2e4 -A41,"Pterodactyl Variation, Modern",1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 4.e2e4 c7c5 5.g1f3 d8a5 -A42,A42,1.d2d4 d7d6 2.c2c4 -A42,English Rat,1.d2d4 d7d6 2.c2c4 e7e5 -A42,Lisbon Gambit,1.d2d4 d7d6 2.c2c4 e7e5 3.d4e5 b8c6 -A42,Randspringer Variation,1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 4.e2e4 f7f5 -A43,Staunton Defense; Benoni C-G; A43,1.d2d4 c7c5 -A43,"Zilbermints Gambit; Nakamura Gambit, Benoni",1.d2d4 c7c5 2.b2b4 c5b4 -A43,Old Benoni,1.d2d4 c7c5 2.d4d5 d7d6 -A43,"Schmid Variation, Benoni",1.d2d4 c7c5 2.d4d5 d7d6 3.b1c3 g7g6 -A43,Franco-Benoni; Franco-Sicilian,1.d2d4 c7c5 2.d4d5 e7e6 3.e2e4 -A43,"Clarendon Court Variation, Benoni",1.d2d4 c7c5 2.d4d5 f7f5 -A43,Benoni-Staunton Gambit,1.d2d4 c7c5 2.d4d5 f7f5 3.e2e4 -A43,"Snail Variation, Benoni",1.d2d4 c7c5 2.d4d5 b8a6 -A43,Benoni-Indian Defense,1.d2d4 c7c5 2.d4d5 g8f6 -A43,"Woozle Defense, Benoni",1.d2d4 c7c5 2.d4d5 g8f6 3.b1c3 d8a5 -A43,"Kingside move order, Benoni",1.d2d4 c7c5 2.d4d5 g8f6 3.g1f3 -A43,"Habichd; Hawk Variation, Benoni",1.d2d4 c7c5 2.d4d5 g8f6 3.g1f3 c5c4 -A43,Benoni Gambit Accepted,1.d2d4 c7c5 2.d4c5 -A43,"Cormorant Gambit, Benoni",1.d2d4 c7c5 2.d4c5 b7b6 -A43,"Schlenker Defense, Benoni",1.d2d4 c7c5 2.d4c5 b8a6 -A43,Zilbermints-Benoni Gambit,1.d2d4 c7c5 2.g1f3 c5d4 3.b2b4 -A43,"Tamarkin Countergambit, Benoni",1.d2d4 c7c5 2.g1f3 c5d4 3.b2b4 e7e5 -A43,Franco-Sicilian Hybrid,1.d2d4 e7e6 2.c2c4 c7c5 3.d4d5 e6d5 4.c4d5 d7d6 5.b1c3 g7g6 6.e2e4 f8g7 7.g1f3 g8e7 -A44,"Pawn Thrust, Benoni; A44",1.d2d4 c7c5 2.d4d5 e7e5 -A44,Blockade Variation; Semi-Benoni; Russian Variation,1.d2d4 c7c5 2.d4d5 e7e5 3.e2e4 d7d6 -A45,Indian Defense; A45,1.d2d4 g8f6 -A45,Basque Opening,1.d2d4 g8f6 2.b2b3 -A45,Trompowsky; Opocensky; Ruth Opening,1.d2d4 g8f6 2.c1g5 -A45,"Poisoned Pawn Variation, Trompowsky",1.d2d4 g8f6 2.c1g5 c7c5 3.d4d5 d8b6 4.b1c3 -A45,Chepukaitis Gambit,1.d2d4 g8f6 2.c1g5 c7c5 3.d4d5 d8b6 4.b1c3 b6b2 5.g5d2 b2b6 -A45,"Borg Variation, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.g5f4 g7g5 -A45,"Edge Variation, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.g5h4 -A45,"Hergert Gambit #2, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.g5h4 c7c6 4.b1d2 d8a5 5.c2c3 e4d2 6.d1d2 d7d5 7.e2e4 -A45,"Hergert Gambit #1, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.g5h4 d7d5 4.f2f3 e4f6 5.b1c3 c8f5 6.e2e4 -A45,"Raptor Variation, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.h2h4 -A45,"Hergert Gambit, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.h2h4 e4g5 4.h4g5 e7e5 -A45,Pawn Push Variation,1.d2d4 g8f6 2.d4d5 -A45,Omega Gambit,1.d2d4 g8f6 2.e2e4 -A45,Arafat Gambit,1.d2d4 g8f6 2.e2e4 f6e4 3.f1d3 e4f6 4.c1g5 -A45,Paleface Attack,1.d2d4 g8f6 2.f2f3 -A45,Webster Gambit,1.d2d4 g8f6 2.f2f3 c7c5 3.d4d5 e7e6 4.e2e4 e6d5 5.e4e5 -A45,Kraus-Muhlherr Counter Gambit,1.d2d4 g8f6 2.f2f3 d7d5 3.e2e4 e7e5 4.d4e5 f6e4 -A45,Gedult Attack,1.d2d4 g8f6 2.f2f3 d7d5 3.g2g4 -A45,Gedult-Gunderam System,1.d2d4 g8f6 2.f2f3 d7d5 3.g2g4 -A45,Linder Counter Gambit,1.d2d4 g8f6 2.f2f3 e7e6 3.e2e4 f6e4 -A45,Canard Attack,1.d2d4 g8f6 2.f2f4 -A45,Ueberlinger Gambit,1.d2d4 g8f6 2.g2g3 e7e5 -A45,Bullfrog; Weidenhagen; Krabbe; Ochsenfrosch,1.d2d4 g8f6 2.g2g4 -A45,Bronstein Gambit,1.d2d4 g8f6 2.g2g4 -A45,Oshima Defense,1.d2d4 g8f6 2.g2g4 e7e5 -A45,Gibbins-Wiedehagen Gambit Accepted,1.d2d4 g8f6 2.g2g4 f6g4 -A45,Stummer Gambit,1.d2d4 g8f6 2.g2g4 f6g4 3.e2e4 d7d6 4.f1e2 g4f6 5.b1c3 -A45,Maltese Falcon,1.d2d4 g8f6 2.g2g4 f6g4 3.f2f3 g4f6 4.e2e4 -A45,Reversed Chigorin Defense,1.d2d4 g8f6 2.b1c3 c7c5 -A45,Von Beivorseen,1.d2d4 g8f6 2.b1c3 c7c5 3.d4c5 -A45,Malich Gambit,1.d2d4 g8f6 2.b1c3 d7d5 3.c1g5 c7c5 4.g5f6 g7f6 5.e2e4 d5e4 6.d4d5 -A45,Huebsch Gambit,1.d2d4 g8f6 2.b1c3 d7d5 3.e2e4 f6e4 -A45,Maddigan Gambit,1.d2d4 g8f6 2.b1c3 e7e5 -A45,Lazard Gambit; Maddigan Gambit,1.d2d4 g8f6 2.b1d2 e7e5 -A46,"Knights Variation, Indian Game; A46",1.d2d4 g8f6 2.g1f3 -A46,Polish Defense,1.d2d4 g8f6 2.g1f3 b7b5 -A46,Spielmann-Indian,1.d2d4 g8f6 2.g1f3 c7c5 -A46,Pseudo-Benko Gambit,1.d2d4 g8f6 2.g1f3 c7c5 3.d4d5 b7b5 -A46,Czech-Indian,1.d2d4 g8f6 2.g1f3 c7c6 -A46,London System,1.d2d4 g8f6 2.g1f3 e7e6 3.c1f4 -A46,Torre Attack,1.d2d4 g8f6 2.g1f3 e7e6 3.c1g5 -A46,Petrosian Gambit,1.d2d4 g8f6 2.g1f3 e7e6 3.c1g5 c7c5 4.e2e3 b7b6 5.d4d5 -A46,Swiss; Wagner Gambit,1.d2d4 g8f6 2.g1f3 e7e6 3.c1g5 c7c5 4.e2e4 -A46,"Nimzovich Variation, Torre Attack",1.d2d4 g8f6 2.g1f3 e7e6 3.c1g5 h7h6 -A46,Yusupov-Rubinstein System,1.d2d4 g8f6 2.g1f3 e7e6 3.e2e3 -A46,Dory Defense,1.d2d4 g8f6 2.g1f3 f6e4 -A47,"Capablanca Variation, Indian Game; A47",1.d2d4 g8f6 2.g1f3 b7b6 -A47,Torre Attack,1.d2d4 g8f6 2.g1f3 b7b6 3.c1g5 -A47,Schnepper Gambit,1.d2d4 g8f6 2.g1f3 b7b6 3.c2c3 e7e5 -A47,Marienbad Variation,1.d2d4 g8f6 2.g1f3 b7b6 3.g2g3 c8b7 4.f1g2 c7c5 -A47,Berg Variation,1.d2d4 g8f6 2.g1f3 b7b6 3.g2g3 c8b7 4.f1g2 c7c5 5.c2c4 c5d4 6.d1d4 -A48,Pseudo-King's Indian Variation; A48,1.d2d4 g8f6 2.g1f3 g7g6 -A48,"London System, Torre Attack",1.d2d4 g8f6 2.g1f3 g7g6 3.c1f4 -A48,London Variation,1.d2d4 g8f6 2.g1f3 g7g6 3.c1f4 f8g7 4.b1d2 -A48,"Fianchetto Defense, Torre Attack",1.d2d4 g8f6 2.g1f3 g7g6 3.c1g5 -A48,"Euwe Variation, Torre Attack",1.d2d4 g8f6 2.g1f3 g7g6 3.c1g5 f8g7 4.b1d2 c7c5 -A48,King's Indian Variation,1.d2d4 g8f6 2.g1f3 g7g6 3.e2e3 f8g7 4.f1d3 d7d6 -A49,Przepiorka Variation; A49,1.d2d4 g8f6 2.g1f3 g7g6 3.g2g3 -A50,"Normal Variation, Indian Game; A50",1.d2d4 g8f6 2.c2c4 -A50,Pyrenees Gambit,1.d2d4 g8f6 2.c2c4 b7b5 -A50,Queen's Indian Defense; Saemisch-Indian,1.d2d4 g8f6 2.c2c4 b7b6 -A50,Medusa Gambit,1.d2d4 g8f6 2.c2c4 g7g5 -A50,Van Geet; Kevitz; Trajkovic; Mexican,1.d2d4 g8f6 2.c2c4 b8c6 -A50,Horsefly Gambit,1.d2d4 g8f6 2.c2c4 b8c6 3.d4d5 c6e5 4.f2f4 -A51,Budapest Defense; A51,1.d2d4 g8f6 2.c2c4 e7e5 -A51,"Fajarowicz Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6e4 -A51,"Bonsdorf Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6e4 4.a2a3 b7b6 -A51,"Steiner Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6e4 4.d1c2 -A52,"Normal Variation, Budapest; A52",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 -A52,"Rubinstein Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.c1f4 -A52,"Kornl Richter Gambit, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.c1f4 b8c6 5.g1f3 f8b4 6.b1c3 b4c3 -A52,"Center Play Variation, Budapest; Alekhine Variation",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 -A52,"Balogh; Tartakower C-G, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 d7d6 -A52,"Barmina Gambit, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 g4e5 5.f2f4 f8c5 -A52,"Wikstrom Gambit, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 g4e5 5.f2f4 b8c6 -A52,"Abonyi Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 g4e5 5.f2f4 e5c6 -A52,"Adler Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.g1f3 -A53,Old Indian Defense; Chigorin Indian Defense; A53,1.d2d4 g8f6 2.c2c4 d7d6 -A53,Aged Gibbon Gambit,1.d2d4 g8f6 2.c2c4 d7d6 3.g2g4 -A53,"Janowski Variation, Old Indian",1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 c8f5 -A53,"Grinberg Gambit, Old Indian",1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 c8f5 4.e2e4 -A53,Ukranian Variation,1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 e7e5 -A53,Duz-Khotimirsky Variation,1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 b8d7 4.e2e3 e7e5 5.f1d3 -A53,Tartakower-Indian,1.d2d4 g8f6 2.c2c4 d7d6 3.g1f3 c8g4 -A54,"Two Knights Variation, Old Indian; A54",1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 e7e5 4.g1f3 -A55,"Normal Variation, Old Indian; A55",1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 e7e5 4.g1f3 b8d7 5.e2e4 -A56,"Vulture Defense, Benoni",1.d2d4 c7c5 2.d4d5 g8f6 3.c2c4 f6e4 -A56,Hromadka Defense; Loose Gambit: A56,1.d2d4 g8f6 2.c2c4 c7c5 -A56,"Hromadka System, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 d7d6 -A56,Lundin; Bronstein Counter-Gambit,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 d7d6 4.b1c3 g7g6 5.e2e4 b7b5 -A56,Petrosian System; Czech Benoni Defense,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e5 -A56,"Czech Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e5 4.b1c3 d7d6 5.e2e4 f8e7 -A56,"King's Indian System, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e5 4.b1c3 d7d6 5.e2e4 g7g6 -A56,Vulture Variation; Der Geier,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 f6e4 -A56,"Weenink Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4c5 e7e6 -A57,Benko Gambit; Volga; Opocensky; Vaitonis; A57,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 -A57,"Sosonko Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.a2a4 -A57,"Bishop Attack, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c1g5 -A57,Benko Gambit Accepted,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 -A57,"Pawn Return Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5b6 -A57,"Central Storming Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c8a6 6.b1c3 d7d6 7.f2f4 -A57,"Modern Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.e2e3 -A57,"Dlugy Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.f2f3 -A57,"Nescafe Frappe Attack, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b1c3 a6b5 6.e2e4 b5b4 7.c3b5 -A57,"Zaitsev Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b1c3 a6b5 6.e2e4 b5b4 7.c3b5 d7d6 8.g1f3 g7g6 9.f1c4 -A57,Benko Gambit Declined; Hjoerring Countergambit,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.e2e4 -A57,"Pseudo-Saemisch, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.f2f3 -A57,"Mutkin Countergambit, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.g2g4 -A57,"Quiet Line, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.b1d2 -A57,"Main Line, Benko Gambit Declined",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.g1f3 -A58,"Fully Accepted Variation, Benko Gambit; A58",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 -A58,"Fianchetto Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c8a6 6.b1c3 g7g6 7.g1f3 d7d6 8.g2g3 f8g7 9.f1g2 -A59,A59,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c8a6 6.b1c3 d7d6 7.e2e4 -A59,"King Walk Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c8a6 6.b1c3 d7d6 7.e2e4 a6f1 8.e1f1 g7g6 9.g2g3 f8g7 10.f1g2 e8g8 -A60,"Tal Variation, Modern Variation, Benoni; A60",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 -A60,Modern Benoni,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 -A61,A61,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 -A61,"Snake Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 f8d6 -A61,"Uhlmann Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.c1g5 -A61,"Nimzovich Variation, Knight's Tour Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.f3d2 -A62,A62,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 -A62,"Fianchetto Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 f8g7 8.f1g2 -A62,"Hastings Defense, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 f8g7 8.f1g2 e8g8 9.e1g1 b8d7 -A63,A63,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 f8g7 8.f1g2 e8g8 9.e1g1 a7a6 -A64,A64,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 f8g7 8.f1g2 e8g8 9.e1g1 a7a6 10.a2a4 b8d7 11.f3d2 -A65,"King Pawn lines, Benoni; A65",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 -A66,"Pawn Storm Variation, Benoni; A66",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 -A66,"Mikenas V, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 f8g7 8.e4e5 -A67,"Taimanov Variation, Benoni; A67",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 f8g7 8.f1b5 -A68,A68,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 f8g7 8.g1f3 -A69,A69,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 f8g7 8.g1f3 e8g8 9.f1e2 f8e8 -A70,"Classical Variation, Benoni; A70",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 -A71,A71,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.c1g5 -A72,A72,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 -A73,A73,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 -A74,A74,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 a7a6 -A75,"Argentine Attack, Benoni; A75",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 a7a6 10.a2a4 c8g4 -A76,"Czerniak Defesne, Benoni; A76",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 f8e8 -A77,A77,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 f8e8 10.f3d2 -A78,A78,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 f8e8 10.f3d2 b8a6 -A79,A79,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 f8e8 10.f3d2 b8a6 11.f2f3 -A80,Dutch Defense; A80,1.d2d4 f7f5 -A80,"Seneschaud Gambit, Dutch",1.d2d4 f7f5 2.c1f4 e7e6 3.g2g4 -A80,"Hopton Attack, Dutch",1.d2d4 f7f5 2.c1g5 -A80,"Blackmar's Second Gambit, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.f2f3 -A80,"Lisbon Gambit, Dutch; Krejcik Gambit",1.d2d4 f7f5 2.g2g4 -A80,"Hevendehl Gambit, Dutch",1.d2d4 f7f5 2.g2g4 e7e5 -A80,"Tate Gambit, Dutch",1.d2d4 f7f5 2.g2g4 f5g4 3.e2e4 d7d5 4.b1c3 -A80,"Korchnoi's Variation, Dutch",1.d2d4 f7f5 2.h2h3 -A80,"Janzen-Korchnoi Gambit, Dutch",1.d2d4 f7f5 2.h2h3 g8f6 3.g2g4 -A80,"Raphael Variation, Dutch",1.d2d4 f7f5 2.b1c3 -A80,"Kingfisher Gambit, Dutch",1.d2d4 f7f5 2.b1c3 d7d5 3.e2e4 -A80,"Spielmann Gambit, Dutch",1.d2d4 f7f5 2.b1c3 g8f6 3.g2g4 -A80,"Barcza Variation, Dutch",1.d2d4 f7f5 2.g1f3 g8f6 3.c2c3 -A80,"Anti-Stonewall, Dutch",1.d2d4 f7f5 2.d1d3 d7d5 3.g2g4 -A80,"Anti-Modern, Dutch",1.d2d4 f7f5 2.d1d3 d7d6 3.g2g4 -A80,"Anti-Classical Line, Dutch",1.d2d4 f7f5 2.d1d3 e7e6 3.g2g4 -A80,"Anti-Leningrad Variation, Dutch",1.d2d4 f7f5 2.d1d3 g7g6 3.g2g4 -A80,"Manhattan Gambit, Dutch",1.d2d4 f7f5 2.d1d3 g8f6 3.g2g4 -A80,"Pretzel Gambit, Dutch",1.d2d4 f7f5 2.d1d3 g8f6 3.g2g4 -A81,"Dutch Indian; Leningrad Variation, Dutch; A81",1.d2d4 f7f5 2.g2g3 -A81,"Basman Variation, Dutch",1.d2d4 f7f5 2.g2g3 g7g6 3.f1g2 f8g7 4.g1f3 c7c6 5.e1g1 g8h6 -A81,"Carlsbad Variation, Dutch",1.d2d4 f7f5 2.g2g3 g7g6 3.f1g2 f8g7 4.g1h3 -A81,"Antoshin-Hort Variation, Dutch",1.d2d4 f7f5 2.g2g3 g8f6 3.f1g2 d7d6 -A81,"Ilyin-Genevsky Variation, Dutch",1.d2d4 f7f5 2.g2g3 g8f6 3.f1g2 e7e6 4.g1f3 f8e7 5.e1g1 e8g8 6.c2c4 d7d6 -A81,"Blackburne Variation, Dutch",1.d2d4 f7f5 2.g2g3 g8f6 3.f1g2 e7e6 4.g1h3 -A81,"Semi-Leningrad Variation, Dutch",1.d2d4 f7f5 2.g2g3 g8f6 3.f1g2 g7g6 -A82,"Balogh Defense, Dutch",1.d2d4 f7f5 2.e2e4 d7d6 -A82,"Staunton Gambit Accepted, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 -A82,"Tartakower Variation, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.g2g4 -A82,"American Gambit, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1d2 -A83,"General Variation, Staunton Gambit, Dutch; A83",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.c1g5 -A83,"Nimzovich Variation, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.c1g5 b7b6 -A83,"Chigorin Variation, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.c1g5 c7c6 -A83,"Lasker Variation, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.c1g5 g7g6 5.f2f3 -A84,"Slav Stonewall, Dutch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.e2e3 f7f5 -A84,Bellon Gambit,1.d2d4 e7e6 2.c2c4 f7f5 3.e2e4 -A84,A84,1.d2d4 f7f5 2.c2c4 -A84,"Classical Variation, Dutch",1.d2d4 f7f5 2.c2c4 e7e6 -A84,"Bellon Gambit, Dutch",1.d2d4 f7f5 2.c2c4 e7e6 3.e2e4 -A84,"Rubinstein Variation, Dutch",1.d2d4 f7f5 2.c2c4 e7e6 3.b1c3 -A84,"Queen's Knight Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.b1c3 -A84,"Krause Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.b1c3 d7d6 4.g1f3 b8c6 -A85," ",1.d2d4 f7f5 2.c2c4 g7g6 3.b1c3 -A85,"Bladel Variation, Dutch",1.d2d4 f7f5 2.c2c4 g7g6 3.b1c3 g8h6 -A85,"Normal Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 -A85,"Ozol Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.c1g5 -A86,"Fianchetto Variation, Dutch; A86",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 -A86,"Leningrad Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 -A87,A87,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 -A87,"Fluid Formation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 d7d6 -A88,"Warsaw Variation, Dutch; A88",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 c7c6 -A89,"Matulovic Variation, Dutch; A89",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 b8c6 -A90,A90,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 -A90,"Classical Variation, Dutch�",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 -A90,Nimzo-Dutch Variation,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8b4 -A91,A91,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 -A91,"Botvinnik-Bronstein Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.b1c3 e8g8 6.e2e3 -A92,A92,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 -A92,"Alekhine Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 f6e4 -A93,"Botvinnik Variation, Dutch; A93",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d5 7.b2b3 -A94,A94,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d5 7.b2b3 c7c6 -A95,A95,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d5 7.b1c3 -A96,A96,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d6 -A97,"Ilyin-Zhenevsky Variation, Dutch; A97",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 d8e8 -A98,A98,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 d8e8 8.d1c2 -A99,A99,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 d8e8 8.b2b3 -B00,Ware Defense,1.e2e4 a7a5 -B00,Corn Stalks,1.e2e4 a7a5 -B00,Snagkeouss Defense,1.e2e4 a7a5 2.d2d4 b8c6 -B00,San Jorge Variation,1.e2e4 a7a6 2.d2d4 b7b5 3.g1f3 c8b7 4.f1d3 d7d6 5.e1g1 g7g6 6.c2c3 f8g7 -B00,"Polish Variation, St George Defense",1.e2e4 a7a6 2.d2d4 b7b5 3.g1f3 c8b7 4.f1d3 e7e6 -B00,"Zilbermints Gambit, St George Defense",1.e2e4 a7a6 2.d2d4 e7e5 -B00,San Jorge Variation,1.e2e4 a7a6 2.d2d4 e7e6 -B00,"Three Pawn Attack, St George",1.e2e4 a7a6 2.d2d4 e7e6 3.c2c4 -B00,"Sanky-Georg Gambit, St George",1.e2e4 a7a6 2.d2d4 e7e6 3.c2c4 b7b5 -B00,"Woodchuck Variation, St George",1.e2e4 a7a6 2.d2d4 b8c6 -B00,Owen's Defense; Greek Defense,1.e2e4 b7b6 -B00,Guatemalan Defense,1.e2e4 b7b6 2.d2d4 c8a6 -B00,Matovinsky Gambit,1.e2e4 b7b6 2.d2d4 c8b7 3.f1d3 f7f5 -B00,Matovinsky Gambit,1.e2e4 b7b6 2.d2d4 c8b7 3.f1d3 f7f5 4.e4f5 b7g2 5.d1h5 g7g6 -B00,"Naselwaus Variation, Owen's Defense",1.e2e4 b7b6 2.d2d4 c8b7 3.c1g5 -B00,"Wind Gambit, Owen Defense",1.e2e4 b7b6 2.d2d4 c8b7 3.f2f3 e7e5 -B00,"Smith Gambit, Owen Defense",1.e2e4 b7b6 2.d2d4 c8b7 3.g1f3 -B00,"Hekili-Loa Gambit, Owen Defense",1.e2e4 b7b6 2.d2d4 c7c5 3.d4c5 b8c6 -B00,Mao Tse Tung; Duras,1.e2e4 f7f5 -B00,Fred; From Reversed,1.e2e4 f7f5 -B00,Tiers Counter-Gambit,1.e2e4 f7f5 -B00,Barnes Defense,1.e2e4 f7f6 -B00,Basman Defense; Macho Grob,1.e2e4 g7g5 -B00,Borg Gambit,1.e2e4 g7g5 2.d2d4 f8g7 -B00,"Zilbermints Gambit, Borg",1.e2e4 g7g5 2.d2d4 e7e5 -B00,Borg Defense; Troon Gambit,1.e2e4 g7g5 2.d2d4 h7h6 3.h2h4 g5g4 -B00,Pickering (Goldsmith) Defense,1.e2e4 h7h5 -B00,Picklepuss Defense,1.e2e4 h7h5 2.d2d4 g8f6 -B00,Carr Defense,1.e2e4 h7h6 -B00,"Zilbermints Gambit, Carr Defense",1.e2e4 h7h6 2.d2d4 e7e5 -B00,Lemming Defense,1.e2e4 b8a6 -B00,Nimzovich Defense,1.e2e4 b8c6 -B00,"Wheeler Gambit, Nimzovich Defense",1.e2e4 b8c6 2.b2b4 c6b4 3.c2c3 b4c6 4.d2d4 -B00,Pseudo-Spanish Variation,1.e2e4 b8c6 2.f1b5 -B00,"Scandanavian Variation, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 -B00,"Hornung Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.c1e3 -B00,"Aachen Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.e4d5 c6b4 -B00,"Marshall Gambit, Nimzovich",1.e2e4 b8c6 2.d2d4 d7d5 3.e4d5 d8d5 4.b1c3 -B00,"Bogoljubow Variation, Nizovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 -B00,"Brandics Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 a7a6 -B00,"Richter Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 d5e4 4.d4d5 c6b8 5.f2f3 -B00,"Nimzovich Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 d5e4 4.d4d5 c6e5 -B00,"Alekseev Variation, Nimzovich; Heinola-Deppe Gambit",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 e7e5 -B00,"Erben Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 g7g6 -B00,"Vehre Variation, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 g8f6 -B00,"Mikenas Variation, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d6 -B00,"Kennedy Variation, Nimzovich",1.e2e4 b8c6 2.d2d4 e7e5 -B00,"Linksspringer Variation, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4d5 -B00,"Bileefelder Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 f8c5 -B00,"Burgar Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 d7d6 -B00,"Hammer Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 f7f6 -B00,"Riemann Defense, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 c6e5 4.f2f4 e5c6 -B00,"Keres Attack, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 c6e5 4.b1c3 -B00,"Paulsen Attack, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 c6e5 4.g1f3 -B00,"Herford Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 d8h4 -B00,"French Connection, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e6 -B00,"Neo-Mongoloid Defense, Nimzovich",1.e2e4 b8c6 2.d2d4 f7f6 -B00,"Pirc Connection, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 g7g6 -B00,"Breyer Defense, Nimzovich",1.e2e4 b8c6 2.b1c3 g8f6 -B00,"Williams Variation, Nimzovich",1.e2e4 b8c6 2.g1f3 d7d6 -B00,Franco-Nimzovich Variation,1.e2e4 b8c6 2.g1f3 e7e6 -B00,"Colorado Defense, Nimzovich; Lean Variation",1.e2e4 b8c6 2.g1f3 f7f5 -B00,"Colorado Counter Accepted, Nimzovich Defense",1.e2e4 b8c6 2.g1f3 f7f5 3.e4f5 -B00,"El Columpio Defense, Nimzovich Defense",1.e2e4 b8c6 2.g1f3 g8f6 3.e4e5 f6g4 -B00,Adams Defense,1.e2e4 g8h6 -B00,Wild Bull Defense,1.e2e4 g8h6 -B01,Center Counter; Scandanavian; B01,1.e2e4 d7d5 -B01,"Zilbermints Gambit, Center Counter",1.e2e4 d7d5 2.b2b4 -B01,"Blackbunre-Kloosterboer Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 c7c6 3.d5c6 e7e5 -B01,"Atkinson (Kloosterboer) Variation, Center Counter",1.e2e4 d7d5 2.e4d5 c7c6 3.d5c6 e7e5 -B01,"Blackburne Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 c7c6 3.d5c6 b8c6 -B01,"Boehnke Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 e7e5 -B01,"Boehnke Gambit Accepted, Center Counter",1.e2e4 d7d5 2.e4d5 e7e5 3.d5e6 c8e6 -B01,"Panov Transfer, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.c2c4 c7c6 -B01,"Icelandic-Palme Gambit, CC",1.e2e4 d7d5 2.e4d5 g8f6 3.c2c4 e7e6 -B01,"Portuguese Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 c8g4 -B01,"Portuguese Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 c8g4 4.f2f3 g4f5 5.f1b5 b8d7 -B01,"Kadas Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 c7c6 4.d5c6 e7e5 -B01,"Wing Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 g7g6 4.c2c4 b7b5 -B01,"Marshall Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 -B01,"Kiel Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 4.c2c4 d5b4 -B01,"Tomalty Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 4.c2c4 d5f6 5.b1c3 c7c5 -B01,"Gipslis Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 4.g1f3 c8g4 -B01,"Richter Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 4.g1f3 g7g6 -B01,"Mieses-Kotroc Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 -B01,"Leonhardt (Rosen) Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.b2b4 -B01,"Anderssen Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 e7e5 -B01,"Collijn Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 e7e5 5.g1f3 c8g4 -B01,"Mieses Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 g8f6 -B01,"Gruenfeld Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 g8f6 5.g1f3 c8f5 6.f3e5 c7c6 7.g2g4 -B01,"Lasker Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 g8f6 5.g1f3 c8g4 6.h2h3 -B01,"Gubinsky-Melts Defense, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5d6 -B01,"Schiller-Pytel Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5d6 4.d2d4 c7c6 -B01,"Bronstein Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5d6 4.d2d4 g8f6 5.g1f3 a7a6 -B01,Closed Scandavian,1.e2e4 d7d5 2.b1c3 -B02,"Fried Fox, Alekhine; Krejcik Gambit",1.e2e4 g8f6 2.f1c4 f6e4 3.c4f7 -B02,"Maroczy Variation, Alekhine",1.e2e4 g8f6 2.d2d3 -B02,"Welling Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.b2b3 -B02,"Kmoch Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.f1c4 d5b6 4.c4b3 c7c5 5.d2d3 -B02,"Hunt Gambit, Alekhine; Two Pawn Attack",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 -B02,"Steiner Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 d5b6 4.b2b3 -B02,"Lasker Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 d5b6 4.c4c5 -B02,"Mikenas Gambit, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 d5b6 4.c4c5 b6d5 5.f1c4 e7e6 6.b1c3 d7d6 7.c3d5 e6d5 8.c4d5 -B02,"Matsukevich Gambit, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 d5b6 4.c4c5 b6d5 5.b1c3 d5c3 6.d2c3 d7d6 7.c1g5 -B02,"Buntin Gambit, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.e5e6 -B02,"Buckley Attack, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.b1a3 -B02,"Saemisch Attack, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.b1c3 -B02,Mokele Mbembe; Knight's Tour,1.e2e4 g8f6 2.e4e5 f6e4 -B02,"Retreat; Brooklyn Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6g8 -B02,"Everglades Defense, Alekhine",1.e2e4 g8f6 2.e4e5 f6g8 3.d2d4 f7f5 -B02,"Scandanavian Variation, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 -B02,"Myers Gambit, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 3.d2d3 d5e4 4.c1g5 -B02,"Spielmann Variation, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 3.e4e5 f6d7 4.e5e6 -B02,"Noch Gambit, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 3.e4d5 -B02,"Geschev Gambit, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 3.e4d5 c7c6 -B02,"John Tracy Gambit, Alekhine",1.e2e4 g8f6 2.g1f3 -B03,B03,1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 -B03,"Wall Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 c7c5 -B03,"Balogh Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.f1c4 -B03,"Hunt Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.c2c4 d5b6 5.c4c5 -B03,Four Pawns Attack; Chase V,1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.c2c4 d5b6 5.f2f4 -B03,"Trifunovic Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.c2c4 d5b6 5.f2f4 c8f5 -B03,"Cambridge Gambit, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.c2c4 d5b6 5.f2f4 g7g5 -B04,B04,1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 -B04,"Panov Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 c8g4 5.h2h3 -B04,"Larsen Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 d6e5 -B04,"Alburt Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 g7g6 -B04,"Keres Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 g7g6 5.f1c4 d5b6 6.c4b3 f8g7 7.a2a4 -B04,"Karpov Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 g7g6 5.c2c4 d5b6 6.h2h3 f8g7 7.f1e2 -B04,"Schmid Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 d5b6 -B05,B05,1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 c8g4 -B05,"Flohr Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 c8g4 5.f1e2 c7c6 -B05,"Alekhine Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 c8g4 5.c2c4 -B06,Pirc; Robatsch; Modern; King Pawn Fianchetto; B06,1.e2e4 g7g6 -B06,"Monkey's Bum, Pirc",1.e2e4 g7g6 2.f1c4 f8g7 3.d1f3 e7e6 4.d2d4 -B06,Bishop Attack,1.e2e4 g7g6 2.d2d4 f8g7 3.f1c4 -B06,Buecker Gambit,1.e2e4 g7g6 2.d2d4 f8g7 3.f1c4 b7b5 -B06,Westermann Gambit,1.e2e4 g7g6 2.d2d4 f8g7 3.c1d2 -B06,Wind Gambit,1.e2e4 g7g6 2.d2d4 f8g7 3.f1d3 -B06,Three Pawns Attack,1.e2e4 g7g6 2.d2d4 f8g7 3.f2f4 -B06,"Pterodactyl, Pirc",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 c7c5 -B06,"Gurgenidze Defense, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 c7c6 4.f2f4 d7d5 5.e4e5 h7h5 -B06,"Mittenberger Gambit, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d5 -B06,Anti-Modern,1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d6 4.f1c4 c7c6 5.d1e2 -B06,Pseudo-Austrian Attack,1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d6 4.f2f4 -B06,"Two Knight Variation, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d6 4.g1f3 -B06,"Suttles Variation, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d6 4.g1f3 c7c6 -B06,"Mongredien Defense, Pirc",1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 b7b6 -B06,"Geller's System, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 d7d6 4.c2c3 -B06,"Rossolimo Variation, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 d7d6 4.c2c4 c8g4 -B06,Accelerated Gurgenidze,1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 d7d6 4.b1c3 c7c6 -B06,"Small Center Variation, Pirc",1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 d7d6 4.b1c3 e7e6 -B06,"Fianchetto Gambit, Modern Defense",1.e2e4 g7g6 2.d2d4 f7f5 -B06,Norwegian Defense,1.e2e4 g7g6 2.d2d4 g8f6 -B06,Masur Gambit,1.e2e4 g7g6 2.d2d4 g8h6 3.b1c3 f7f5 4.c1h6 f8h6 5.e4f5 e8g8 -B07,B07,1.e2e4 d7d6 -B07,"Maroczy Defense, Pirc",1.e2e4 d7d6 2.d2d4 e7e5 -B07,"Philidor Gambit, Pirc",1.e2e4 d7d6 2.d2d4 e7e5 3.d4e5 c8d7 -B07,Small Center Defense,1.e2e4 d7d6 2.d2d4 e7e6 -B07,"Balogh Defense, Pirc",1.e2e4 d7d6 2.d2d4 f7f5 -B07,Pirc Defense,1.e2e4 d7d6 2.d2d4 g8f6 -B07,"Lion's Jaw, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.f2f3 -B07,Czech Defense,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 c7c6 -B07,Pirc; Ufimtsev; Antal Defense,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 -B07,"Kholmov System, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f1c4 -B07,"Classical System, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f1e2 -B07,"Chinese Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f1e2 f8g7 5.g2g4 -B07,"Bayonet Attack, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f1e2 f8g7 5.h2h4 -B07,"Sveshnikov-Jansa Attack, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.c1e3 c7c6 5.h2h3 -B07,150 Attack,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.c1e3 c7c6 5.d1d2 -B07,"Panov; Opatijav; Byrne Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.c1g5 -B07,Anti-Philidor,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 b8d7 4.f2f4 -B07,"Roscher Gambit, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.g1f3 -B08,B08,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 -B08,"Quiet System, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.f1e2 -B08,"Parma Defense, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.f1e2 e8g8 6.e1g1 c8g4 -B08,"Czech Defense, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.f1e2 e8g8 6.e1g1 c7c6 -B08,"Chigorin Line, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.f1e2 e8g8 6.e1g1 b8c6 -B08,"Schlechter Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.h2h3 -B09,"Austrian Attack, Pirc; B09",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 -B09,"Ljubojevic Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.f1c4 -B09,"Austrian; Yugoslav Defense, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 -B09,"Dragon Formation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 c7c5 -B09,"Weiss Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 e8g8 6.f1d3 -B09,"Kurajica Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 e8g8 6.c1e3 -B09,"Unzicker Attack, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 e8g8 6.e4e5 -B10,"Hillbilly Attack, Caro-Kann",1.e2e4 c7c6 2.f1c4 -B10,"Modern; English Variation, Accelerated Panov; Caro-Kann",1.e2e4 c7c6 2.c2c4 -B10,"Breyer Variation, Caro-Kann",1.e2e4 c7c6 2.d2d3 -B10,"Stein Attack, Caro-Kann",1.e2e4 c7c6 2.d2d3 d7d5 3.b1d2 g7g6 4.g2g3 f8g7 5.f1g2 e7e5 6.g1f3 g8e7 7.e1g1 e8g8 8.b2b4 -B10,"Massachussets Defense, Caro-Kann",1.e2e4 c7c6 2.d2d4 f7f5 -B10,"Masi Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 g8f6 -B10,"Scorpion-Horus Gambit, Caro-Kann",1.e2e4 c7c6 2.b1c3 d7d5 3.d2d3 d5e4 4.c1g5 -B10,"Goldman Variation, Caro",1.e2e4 c7c6 2.b1c3 d7d5 3.d1f3 -B10,"Two Knights Variation, Caro",1.e2e4 c7c6 2.g1f3 d7d5 3.b1c3 -B11,B11,1.e2e4 c7c6 2.b1c3 -B11,"Two Knights Attack, Caro Kann",1.e2e4 c7c6 2.b1c3 d7d5 3.g1f3 -B11,"Mindeno Variation, Caro-Kann",1.e2e4 c7c6 2.b1c3 d7d5 3.g1f3 c8g4 -B11,"Retreat Line, Mindeno Variation, Caro-Kann",1.e2e4 c7c6 2.b1c3 d7d5 3.g1f3 c8g4 4.h2h3 g4h5 -B12,B12,1.e2e4 c7c6 2.d2d4 -B12,"Landau Gambit, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.f1d3 g8f6 4.e4e5 f6d7 5.e5e6 -B12,"Mieses Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.c1e3 -B12,"Diemer-Duhm Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.c2c4 -B12,"Prins Attack, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.b2b4 -B12,"Bayonet Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.g2g4 -B12,"Tal Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.h2h4 -B12,"Van der Wiel Attack, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.b1c3 -B12,"Dreyev Defense, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.b1c3 d8b6 -B12,"Bronstein Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.g1e2 -B12,"Short Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.g1f3 -B12,"Botvinnik-Carls Defense, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c6c5 -B12,"Maroczy Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.f2f3 -B12,"Fantasy; Lilienfisch Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.f2f3 -B12,"Maroczy Gambit, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.f2f3 d5e4 4.f3e4 e7e5 5.g1f3 e5d4 6.f1c4 -B12,"Modern Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1d2 -B12,New Caro-Kann,1.e2e4 c7c6 2.d2d4 d7d5 3.b1d2 g7g6 -B12,"Edinburgh Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1d2 d8b6 -B12,"Ulysses Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.g1f3 d5e4 4.f3g5 -B12,"De Bruycker Defense, Caro",1.e2e4 c7c6 2.d2d4 b8a6 -B12,"Hector Gambit, Caro",1.e2e4 c7c6 2.b1c3 d7d5 3.g1f3 d5e4 4.f3g5 -B13,"Exchange Variation, Caro; B13",1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 -B13,Panov-Botvinnik; Gunderam Attack,1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 -B14,B14,1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 g8f6 5.b1c3 -B14,"Carlsbad Line, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 -B14,"Czerniak Line, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 g8f6 5.b1c3 b8c6 6.c1g5 d8a5 -B14,"Reifir-Spielmann Line, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 g8f6 5.b1c3 b8c6 6.c1g5 d8b6 -B15,B15,1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 -B15,"Gurgenidze Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 b7b5 -B15,"Von Hennig Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.f1c4 -B15,"Milner-Barry Gambit, Caro; Rasa-Studier Gambit",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.f2f3 -B15,"Knight Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 -B15,"Tarrasch (Alekhine) Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 5.f1d3 -B15,"Tartakower Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 5.e4f6 e7f6 -B15,"Forgacs Variation, Caro Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 5.e4f6 e7f6 6.f1c4 -B15,"Gurgenidze System, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 g7g6 -B15,"Gurgenidze Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 g7g6 4.e4e5 f8g7 5.f2f4 h7h5 -B15,"Campomanes Attack, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 g8f6 -B16,"Finnish Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 h7h6 -B16,"Nimzovich; Bronstein-Larsen, Caro; B16",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 5.e4f6 g7f6 -B17,"Karpov Variation, Caro-Kann; B17",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 -B17,"Smyslov Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.f1c4 g8f6 6.e4g5 e7e6 7.d1e2 d7b6 -B17,"Tiviakov-Fischer Attack, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.f1c4 g8f6 6.e4f6 d7f6 -B17,"Kasparov Attack, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.g1f3 g8f6 6.e4g3 -B17,"Ivanchuk Defense, Caro Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.e4g5 d7f6 -B18,"Classical Variation, Caro; B18",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 c8f5 -B18,"Flohr Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 c8f5 5.e4g3 f5g6 6.g1h3 -B19,B19,1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 c8f5 5.e4g3 f5g6 6.h2h4 h7h6 7.g1f3 -B20,"Mengarini Gambit, Sicilian",1.e2e4 c7c5 2.a2a3 b8c6 3.b2b4 -B20,"Snyder Variation, Sicilian",1.e2e4 c7c5 2.b2b3 -B20,"Queen Fianchetto Variation, Sicilian",1.e2e4 c7c5 2.b2b3 b7b6 -B20,"Wing Gambit, Sicilian",1.e2e4 c7c5 2.b2b4 -B20,"Wing; Carlsbad Variation, Sicilian",1.e2e4 c7c5 2.b2b4 c5b4 3.a2a3 b4a3 -B20,"Marienbad Variation, Sicilian",1.e2e4 c7c5 2.b2b4 c5b4 3.a2a3 d7d5 4.e4d5 d8d5 5.c1b2 -B20,"Abrahams Variation, Sicilian Wing Gambit",1.e2e4 c7c5 2.b2b4 c5b4 3.c1b2 -B20,"Santasiere Wing Gambit, Sicilian",1.e2e4 c7c5 2.b2b4 c5b4 3.c2c4 -B20,"Bowlder Attack, Sicilian",1.e2e4 c7c5 2.f1c4 -B20,Slow Sicilian,1.e2e4 c7c5 2.f1e2 -B20,"Gloria Variation, Sicilian",1.e2e4 c7c5 2.c2c4 d7d6 3.b1c3 b8c6 4.g2g3 h7h5 -B20,"Chameleon Variation, Sicilian",1.e2e4 c7c5 2.d2d3 -B20,"Big Clamp Variation, Sicilian",1.e2e4 c7c5 2.d2d3 b8c6 3.c2c3 d7d6 4.f2f4 -B20,Sicilian Center Game,1.e2e4 c7c5 2.d2d4 c5d4 -B20,"Smith-Morra; Fleissig Gambit, Sic",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 -B20,"Rivadavia Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 -B20,"Push Variation, Smith-Morra Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4d3 -B20,"Dubois Variation, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4d3 4.c3c4 -B20,"Scandanavian Formation, Smith-Morra, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d7d5 -B20,"Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 -B20,"Chicago Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 d7d6 5.f1c4 e7e6 6.g1f3 g8f6 7.e1g1 a7a6 -B20,"Taimanov Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 e7e6 5.f1c4 a7a6 6.g1f3 g8e7 -B20,"Kan Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 e7e6 5.g1f3 a7a6 -B20,"Fianchetto Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 e7e6 5.g1f3 g7g6 -B20,"Classical Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 d7d6 6.f1c4 a7a6 7.e1g1 g8f6 -B20,"Scheveningen Formation, Smith-Morra Accepted",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 d7d6 6.f1c4 e7e6 -B20,"Paulsen Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 a7a6 -B20,"Morphy Defense Deferred, Smith-Morra Accepted",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 a7a6 7.e1g1 b7b5 8.c4b3 f8c5 -B20,"Larsen Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 a7a6 7.e1g1 d8c7 8.d1e2 f8d6 -B20,"Pin Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 f8b4 -B20,"Morphy Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 f8c5 -B20,"Sozin Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 d7d6 7.e1g1 a7a6 8.d1e2 b7b5 -B20,"Center Formation, Smith-Morra Declined, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 e7e5 -B20,"Alapin Formation, Smith-Morra Declined, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 g8f6 -B20,"Wing Formation, Smith-Morra Declined, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d8a5 -B20,"Halasz Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.f2f4 -B20,"Morphy Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.g1f3 -B20,"Andreaschek Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.g1f3 e7e5 4.c2c3 -B20,"Steinitz; Tartakower, Lasker-Dunne Variation, Sicilian",1.e2e4 c7c5 2.g2g3 -B20,"Myers Attack, Sicilian",1.e2e4 c7c5 2.h2h4 -B20,King David's Opening,1.e2e4 c7c5 2.e1e2 -B20,"Keres; Billium Attack, Sicilian; Chameleon",1.e2e4 c7c5 2.g1e2 -B20,"Brick Variation, Sicilian",1.e2e4 c7c5 2.g1h3 -B21,"Larsen-Santasiere (McDonnell Attack) Variation, Sicilian; B21",1.e2e4 c7c5 2.f2f4 -B21,"Tal Gambit, Sicilian",1.e2e4 c7c5 2.f2f4 d7d5 3.e4d5 g8f6 -B22,"Alapin; Sveshnikov Var, Sicilian; B22",1.e2e4 c7c5 2.c2c3 -B22,"Barmen Defense, Sicilian",1.e2e4 c7c5 2.c2c3 d7d5 3.e4d5 d8d5 -B22,"Sherzer Variation, Sicilian",1.e2e4 c7c5 2.c2c3 g8f6 3.e4e5 f6d5 4.d2d4 e7e6 5.g1f3 b8c6 -B22,"Stoltz Attack, Sicilian",1.e2e4 c7c5 2.c2c3 g8f6 3.e4e5 f6d5 4.g1f3 b8c6 5.f1c4 d5b6 6.c4b3 -B23,"Closed; Chigorin Variation, Sicilian; B23",1.e2e4 c7c5 2.b1c3 -B23,"Grand Prix Variation, Sicilian",1.e2e4 c7c5 2.b1c3 d7d6 3.f2f4 -B23,"Marshall Gambit, Sicilian",1.e2e4 c7c5 2.b1c3 e7e6 3.d2d4 d7d5 -B23,"Korchnoi Defense, Sicilian",1.e2e4 c7c5 2.b1c3 e7e6 3.g2g3 d7d5 -B23,Traditional Closed Sicilian,1.e2e4 c7c5 2.b1c3 b8c6 -B23,"Portland Attack, Sicilian",1.e2e4 c7c5 2.b1c3 b8c6 3.d2d3 g7g6 4.g2g4 -B23,"Vinken System, Sicilian; Grand Prix Attack",1.e2e4 c7c5 2.b1c3 b8c6 3.f2f4 -B23,"Schofman Variation, Sicilian",1.e2e4 c7c5 2.b1c3 b8c6 3.f2f4 g7g6 4.g1f3 f8g7 5.f1c4 e7e6 6.f4f5 -B23,Chameleon Sicilian,1.e2e4 c7c5 2.b1c3 b8c6 3.g1e2 -B24,"Fianchetto Variation, Sicilian Closed; B24",1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 -B25,B25,1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 -B25,"Botvinnik Defense, Sicilian Closed",1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.f2f4 e7e5 -B25,"Edge Variation, Sicilian Closed",1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.f2f4 e7e5 7.g1h3 g8e7 -B26,B26,1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.c1e3 -B27,B27,1.e2e4 c7c5 2.g1f3 -B27,"Polish Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 b7b5 -B27,"Katalimov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b7b6 -B27,"Jalalabad Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e5 -B27,"Brussels Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 f7f5 -B27,"Double-Dutch Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 f7f5 3.e4f5 g8h6 -B27,"Hyperaccelerated Dragon, Sicilian",1.e2e4 c7c5 2.g1f3 g7g6 -B27,"Action Extension, Sicilian",1.e2e4 c7c5 2.g1f3 g7g6 3.c2c4 f8h6 -B27,"Hyperaccelerated Pterodactyl, Sic",1.e2e4 c7c5 2.g1f3 g7g6 3.d2d4 f8g7 -B27,"Frederico Variation, Sicilian",1.e2e4 c7c5 2.g1f3 g7g6 3.d2d4 f7f5 -B27,Sicilian Fred,1.e2e4 c7c5 2.g1f3 g7g6 3.d2d4 f7f5 -B27,"Buecker Variation, Sicilian",1.e2e4 c7c5 2.g1f3 h7h6 -B27,"Mongoose Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d8a5 -B27,"Althouse; Stiletto Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d8a5 -B27,"Accelerated Paulsen, Sicilian",1.e2e4 c7c5 2.g1f3 d8c7 -B27,"Quinteros Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d8c7 -B28,"O'Kelly Variation, Sicilian; B28",1.e2e4 c7c5 2.g1f3 a7a6 -B28,"Kieseritzky System, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.b2b3 -B28,"Wing Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.b2b4 -B28,"Aronin System, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.f1e2 -B28,"Venice System, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 -B28,"Ljubojevic Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 b7b5 -B28,"Gambit Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 d7d5 4.e4d5 g8f6 -B28,"Steiner Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 d7d6 -B28,"Barcza Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 g8f6 -B28,"Maroczy Bind, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c4 -B28,"Robatsch Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c4 d7d6 -B28,"Paulsen Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c4 e7e6 -B28,"Geller Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c4 b8c6 4.d2d4 c5d4 5.f3d4 e7e5 -B28,"Quiet System, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d3 -B28,"Normal System, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 -B28,"Cortlever Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.f1c4 -B28,"Smith-Morra Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.c2c3 -B28,"Taimanov Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.f3d4 e7e5 -B28,"Kan Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.f3d4 e7e6 -B28,"Zagorovsky Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.d1d4 -B28,"Reti System, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.g2g3 -B28,"Yerevan System, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.b1c3 -B29,"Nimzovich; Rubinstein Var, Sicilian; B29",1.e2e4 c7c5 2.g1f3 g8f6 -B29,"Advance Variation, Sicilian",1.e2e4 c7c5 2.g1f3 g8f6 3.e4e5 -B30,Old Sicilian,1.e2e4 c7c5 2.g1f3 b8c6 -B30,"Rossolimo (Nezmetdinov) Variation, Sicilian; B30",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 -B31,B31,1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 g7g6 -B31,"Gufeld Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 g7g6 4.e1g1 f8g7 5.c2c3 e7e5 6.d2d4 -B31,"Lutikov Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 g7g6 4.e1g1 f8g7 5.c2c3 g8f6 6.d2d4 -B31,"Gurgenidze Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 g7g6 4.e1g1 f8g7 5.f1e1 e7e5 6.b2b4 -B31,"San Francisco Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 c6a5 4.b2b4 -B32,B32,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 -B32,"Nimzovich Variation, Sicilian; Nimzo-American Variation",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 d7d5 -B32,"Bourdonnais; Lowenthal Var, Sic",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 e7e5 -B32,"Kalashnikov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 e7e5 5.d4b5 d7d6 -B32,"Retreat Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4f3 -B32,"Godiva Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 d8b6 -B32,"Flohr Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 d8c7 -B33,B33,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 -B33,"Four Knights Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 -B33,"Lasker-Pelikan Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 -B33,"Pelikan Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4b5 d7d6 -B33,"Chelyabinsk Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4b5 d7d6 7.c1g5 a7a6 8.b5a3 b7b5 -B33,"Sveshnikov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4b5 d7d6 7.c1g5 a7a6 8.b5a3 b7b5 9.g5f6 g7f6 10.c3d5 f6f5 -B33,"Bird Variation, Siclian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4b5 d7d6 7.c1g5 a7a6 8.b5a3 c8e6 -B34,Accelerated Dragon; Fianchetto Var; B34,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 -B35,B35,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.b1c3 f8g7 6.c1e3 g8f6 7.f1c4 -B36,"Maroczy Bind, Sicilian; B36",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 -B36,"Gurgenidze Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 g8f6 6.b1c3 c6d4 7.d1d4 d7d6 -B37,B37,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 f8g7 -B38,B38,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 f8g7 6.c1e3 -B39,"Breyer Variation, Sicilian; B39",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 f8g7 6.c1e3 g8f6 7.b1c3 f6g4 -B40,"French Variation, Sicilian; B40",1.e2e4 c7c5 2.g1f3 e7e6 -B40,"Wing Gambit Deferred, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.b2b4 -B40,"Kramnik Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.c2c4 -B40,"Gaw-Paw Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 d8b6 -B40,"Kveinis Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 d8b6 -B41,B41,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 -B41,"Accelerated Wimpy Variation, Sic",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 -B41,"Paulsen; Kan Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 -B41,"Reti Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.c2c4 -B41,"Hedgehog Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.c2c4 g7g6 -B41,"Bronstein Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.c2c4 g8f6 6.b1c3 f8b4 7.f1d3 b8c6 -B41,"Anderssen; Counterattack Var, Sic",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 -B41,Pin Variation; Sicilian CounterAttack,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 f8b4 -B41,"Jaffe Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 f8b4 6.f1d3 e6e5 -B41,"Koch Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 f8b4 6.e4e5 -B41,"Marshall Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 d7d5 -B42,B42,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.f1d3 -B42,"Polugaevsky Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.f1d3 f8c5 -B42,"Swiss Cheese Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.f1d3 g7g6 -B43,B43,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.b1c3 -B44,"Taimanov; Bastrikov, Paulsen Variation, Sicilian; B44",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 -B44,"Szen Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.d4b5 -B44,"Gary Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.d4b5 d7d6 6.c2c4 g8f6 7.b1c3 a7a6 8.b5a3 d6d5 -B45,B45,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 -B45,"Paulsen Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 g8f6 6.d4b5 f8b4 -B45,"American Attack, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 g8f6 6.d4b5 f8b4 7.b5d6 -B45,"Four Knights Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 -B45,"Cobra Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.d4b5 f8c5 -B46,B46,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 a7a6 -B46,"Taimanov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 a7a6 6.f1e2 g8e7 -B47,"Bastrikov Variation, Sicilian; B47",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 d8c7 -B47,"Ponomariov Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 d8c7 6.d4b5 c7b8 7.c1e3 a7a6 8.e3b6 -B48,B48,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 d8c7 6.c1e3 -B49,B49,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 d8c7 6.c1e3 a7a6 7.f1e2 -B50,"Modern Variation, Sicilian; B50",1.e2e4 c7c5 2.g1f3 d7d6 -B50,"Kopec System, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.f1d3 -B50,"Delayed Alapin, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.c2c3 -B50,Basman-Palatnik Gambit,1.e2e4 c7c5 2.g1f3 d7d6 3.c2c3 g8f6 4.f1e2 b8c6 5.d2d4 c5d4 6.c3d4 f6e4 -B50,"Kotov Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.g2g3 b7b5 -B51,"Wing Gambit Deferred, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.b2b4 -B51,"Moscow Variation, Sicilian; Canal Attack; B51",1.e2e4 c7c5 2.g1f3 d7d6 3.f1b5 -B51,"Moscow Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.f1b5 b8c6 4.e1g1 c8d7 5.c2c3 a7a6 6.b5c6 d7c6 7.f1e1 g8f6 8.d2d4 c6e4 9.c1g5 -B51,"Dorfman Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.f1b5 b8c6 4.e1g1 c8d7 5.d1e2 g7g6 6.e4e5 -B52,"Bronstein (Haag) Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.f1b5 c8d7 4.b5d7 d8d7 5.e1g1 b8c6 6.c2c3 g8f6 7.d2d4 -B53,B53,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 -B53,"Tartakower Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.c2c3 -B53,"Chekhover Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.d1d4 -B53,"Zaitsev Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.d1d4 b8c6 5.f1b5 d8d7 -B53,"Lazy Knight Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 b8d7 -B53,"Cortlever Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 g8f6 4.d4c5 f6e4 5.c5d6 -B54,B54,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 -B55,B55,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 -B55,"Ginsberg Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.f1c4 -B55,"Moscow (Prins) Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.f2f3 -B55,"Venice Attack, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.f2f3 e7e5 6.f1b5 -B56,B56,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 -B56,"Kupreichik Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 c8d7 -B56,"Venice Attack, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.f1b5 -B56,"Classical Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 -B56,"Yates Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1d3 -B56,"Spielmann Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.d4e2 -B57,"Sozin; Velimirovic Attack, Sicilian; B57",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1c4 -B57,"Anti-Sozin Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1c4 d8b6 -B58,B58,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1e2 -B58,"Boleslavsky Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1e2 e7e5 -B58,"Louma Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1e2 e7e5 7.d4c6 -B58,"Fianchetto Variation, Richter-Rauzer Sicilizn",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.g2g3 -B59,B59,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1e2 e7e5 7.d4b3 -B60,"Richter-Rauzer Variation, Sicilian; B60",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 -B60,"Dragon Variation, Richter-Rauzer Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 g7g6 -B61,B61,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.d1d2 -B62,B62,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 -B62,"Margate (Vitolins) Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.f1b5 -B62,"Podebrady Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d4b3 -B62,"Exchange Variation, Richter-Rauzer Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d4c6 -B63,"Rauzer Variation, Sicilian; B63",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 -B63,"Ivanov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 d8b6 -B64,B64,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 f8e7 8.e1c1 e8g8 9.f2f4 -B65,B65,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 f8e7 8.e1c1 e8g8 9.f2f4 c6d4 10.d2d4 -B66,B66,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 a7a6 -B67,B67,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 a7a6 8.e1c1 c8d7 -B68,B68,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 a7a6 8.e1c1 c8d7 9.f2f4 f8e7 -B69,B69,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 a7a6 8.e1c1 c8d7 9.f2f4 f8e7 10.d4f3 b7b5 11.g5f6 -B70,"Dragon Variation, Sicilian; B70",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 -B70,"Alekhine Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.f1e2 f8g7 7.e1g1 e8g8 8.d4b3 -B70,"Fianchetto Variation, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.g2g3 -B71,"Levenfish Variation, Sicilian; B71",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.f2f4 -B72,B72,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 -B72,"Nottingham Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.d4b3 -B72,"Amsterdam (Battery) Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.d1d2 -B72,"Grigoriev Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.d1d2 e8g8 9.e1c1 -B73,B73,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 -B73,"Zollner Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.f2f4 d8b6 -B74,B74,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.d4b3 -B74,"Alekhine Line, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.d4b3 a7a5 -B74,"Maroczy Line, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.d4b3 c8e6 10.f2f4 c6a5 -B74,"Tartakower Line, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.d4b3 c8e6 10.f2f4 d8c8 -B75,B75,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 -B76,"Yugoslav Attack, Sicilian Dragon; B76",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 -B76,"Panov Variation, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.g2g4 -B77,B77,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.f1c4 -B77,"Sosonko Variation, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.f1c4 f6d7 -B78,B78,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.f1c4 c8d7 10.e1c1 -B79,B79,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.f1c4 c8d7 10.e1c1 d8a5 -B80,"Scheveingen Variation, Sicilian; B80",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 -B80,"Vitolins Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1b5 -B80,"English Attack, Scheveningen Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.c1e3 a7a6 7.f2f3 -B80,"Fianchetto Variation, Scheveningen Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.g2g3 -B81,"Delayed Keres Attack, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.c1e3 a7a6 7.g2g4 -B81,"Perenyi Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.c1e3 a7a6 7.g2g4 e6e5 8.d4f5 g7g6 9.g4g5 -B81,"Keres; Panov Variation, Sicilian; B81",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.g2g4 -B82,"Matanovic Attack, Sicilian; B82",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f2f4 -B82,"Tal Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f2f4 b8c6 7.c1e3 f8e7 8.d1f3 -B84,"Modern Paulsen, Sicilian; B84",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1e2 a7a6 -B85,B85,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1e2 a7a6 7.e1g1 f8e7 -B85,"Paulsen Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1e2 a7a6 7.e1g1 d8c7 8.f2f4 b8c6 -B86,"Fischer Attack, Sozin Attack, Sicilian; B86",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 -B87,"Flank Variation, Sicilian; B87",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 a7a6 7.c4b3 b7b5 -B88,"Leonhardt Variation, Sicilian; B88",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 b8c6 -B89,"Sherbakov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 b8c6 7.c1e3 f8e7 8.c4b3 e8g8 9.e1g1 c6a5 10.f2f4 b7b6 -B89,"Velimirovic Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 b8c6 7.c1e3 f8e7 8.d1e2 -B90,"Najdorf Variation, Sicilian; B90",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 -B90,"Lipnitzky Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.f1c4 -B90,"Byrne Variation, Sicilian; English Attack",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1e3 -B90,"Anti-English, Najdorf Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1e3 f6g4 -B90,"Adams Attack, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.h2h3 -B90,"Freak Attack, Siicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.h1g1 -B91,"Zagreb Variation, Sicilian; B91",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.g2g3 -B92,"Opocensky Variation, Sicilian; B92",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.f1e2 -B92,"Opocensky Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.f1e2 e7e5 -B93,"Amsterdam Variation, Sicilian; B93",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.f2f4 -B94,B94,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 -B95,B95,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 -B96,B96,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 -B96,Polugaevsky; Accelerated Najdorf,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 b7b5 -B96,"Simagin Line, Najdorf Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 b7b5 8.e4e5 d6e5 9.f4e5 d8c7 10.d1e2 -B97,"Poisoned Pawn Variation, Najdorf Sicilian; B97",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 d8b6 -B97,"Poisoned Pawn Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 d8b6 8.d1d2 -B97,"Poisoned Pawn Accepted, Najdorf Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 d8b6 8.d1d2 b6b2 -B98,B98,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 f8e7 -B98,"Argenitne; Goteborg Var, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 f8e7 8.d1f3 h7h6 9.g5h4 g7g5 -B98,"Browne Variation, Najdorf Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 f8e7 8.d1f3 h7h6 9.g5h4 d8c7 -B99,B99,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 f8e7 8.d1f3 d8c7 9.e1c1 b8d7 -C00,French Defense; C00,1.e2e4 e7e6 -C00,"Reti (Horwitz) Variation, French",1.e2e4 e7e6 2.b2b3 -C00,"Papa-Ticulat Gambit, French",1.e2e4 e7e6 2.b2b3 d7d5 3.c1b2 -C00,"Banzai-Leong Gambit, French",1.e2e4 e7e6 2.b2b4 -C00,Pinova Gambit,1.e2e4 e7e6 2.b2b4 f8b4 3.e4e5 -C00,"Bird Invitation, French",1.e2e4 e7e6 2.f1b5 -C00,"Orthoschapp Variation, French",1.e2e4 e7e6 2.c2c4 d7d5 3.c4d5 e6d5 4.d1b3 -C00,"Reversed Philidor, French",1.e2e4 e7e6 2.d2d3 d7d5 3.b1d2 g8f6 4.g1f3 b8c6 5.f1e2 -C00,"Franco-Hiva Gambit, French",1.e2e4 e7e6 2.d2d3 f7f5 -C00,"Alapin; Witaker Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.c1e3 -C00,"Alapin-Diemer Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.c1e3 d5e4 4.f2f3 -C00,"Diemer-Duhm Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.c2c4 -C00,"Steinitz Attack, French",1.e2e4 e7e6 2.e4e5 -C00,"Reuter Gambit, French",1.e2e4 e7e6 2.f2f4 d7d5 3.g1f3 d5e4 4.f3g5 -C00,"Reti-Spielmann Attack, French",1.e2e4 e7e6 2.g2g3 -C00,"Queen's Knight, French",1.e2e4 e7e6 2.b1c3 -C00,"Pelikan Variation, French",1.e2e4 e7e6 2.b1c3 d7d5 3.f2f4 -C00,"Two Knight Variation, French",1.e2e4 e7e6 2.b1c3 d7d5 3.g1f3 -C00,"Knight Variation, French",1.e2e4 e7e6 2.g1f3 -C00,"Wing Gambit, French",1.e2e4 e7e6 2.g1f3 d7d5 3.e4e5 c7c5 4.b2b4 -C00,"Two Knights Variation, French",1.e2e4 e7e6 2.g1f3 d7d5 3.b1c3 -C00,"Chigorin Variation, French",1.e2e4 e7e6 2.d1e2 -C01,C01,1.e2e4 e7e6 2.d2d4 -C01,"Baeuerle Gambit, French",1.e2e4 e7e6 2.d2d4 b7b5 -C01,"Schlechter Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.f1d3 -C01,"Exchange Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4d5 e6d5 -C01,"Monte Carlo Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4d5 e6d5 4.c2c4 -C01,"Svenius Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4d5 e6d5 4.b1c3 g8f6 5.c1g5 -C01,"Canal Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4d5 e6d5 5.f1d3 g8e7 6.d1h5 -C01,"Perseus Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.g1f3 -C01,"Carlson Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.g1f3 d5e4 4.f3e5 -C01,"Morphy Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.g1h3 -C01,Hoffman Gambit,1.e2e4 e7e6 2.d2d4 d7d5 3.d1e2 e6e5 4.f2f4 e5f4 -C01,"Franco-Hiva Gambit I, French",1.e2e4 e7e6 2.d2d4 f7f5 -C01,"Mediterranean Defense, French",1.e2e4 e7e6 2.d2d4 g8f6 -C02,"Advance Variation, French; C02",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 -C02,"Extended Bishop Swap, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c8d7 -C02,"Advance; Nimzovich; Steinitz Var, Fr",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c8d7 -C02,"Frenkel Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.b2b4 -C02,"Paulsen Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 b8c6 5.g1f3 -C02,"Euwe Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 b8c6 5.g1f3 c8d7 -C02,"Lputian Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 b8c6 5.g1f3 d8b6 6.a2a3 g8h6 -C02,"Milner-Barry Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 b8c6 5.g1f3 d8b6 6.f1d3 -C02,"Wade Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 d8b6 5.g1f3 c8d7 -C02,"Nimzovich Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.g1f3 -C02,"Ruisdonk Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.g1f3 c5d4 5.f1d3 -C02,"Nimzovich Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.d1g4 -C03,"Tarrasch Variation, French; C03",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 -C03,"Morozevich Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 f8e7 -C03,"Haberditz Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 f7f5 -C04,C04,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 b8c6 -C05,C05,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 g8f6 -C06,C06,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 g8f6 4.e4e5 f6d7 5.f1d3 -C07,Open System Tarrasch French; C07,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 -C07,"Shaposhnikov Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 4.e4d5 g8f6 -C07,"Chistiakov Defense, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 4.e4d5 d8d5 -C08,C08,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 4.e4d5 e6d5 -C09,C09,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 4.e4d5 e6d5 5.g1f3 b8c6 -C10,"Normal Variation, French; C10",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 -C10,"Marshall Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 c7c5 -C10,"Rubinstein Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 -C10,"Rasa-Studier Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c1e3 -C10,"Ellis Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 e6e5 -C10,"Blackburne Defense, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 -C10,"Capablanca Line, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.g1f3 g8f6 6.e4f6 d7f6 7.f3e5 -C10,"Frere; Becker; Katilimov, Maric Var, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 d8d5 -C10,"Svenonius Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4d5 -C11,"Classical Variation, French; C11",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 -C11,"Swiss Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.f1d3 -C11,"Henneberger Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1e3 -C11,"Burn Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 d5e4 -C11,"Steinitz Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 -C11,"Bradford Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 f6d7 5.f2f4 c7c5 6.d4c5 f8c5 7.d1g4 -C11,"Brodsky-Jones Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 f6d7 5.f2f4 c7c5 6.d4c5 b8c6 7.a2a3 f8c5 8.d1g4 e8g8 9.g1f3 f7f6 -C11,"Boleslavsky Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 f6d7 5.f2f4 c7c5 6.g1f3 b8c6 7.c1e3 -C11,"Gledhill Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 f6d7 5.d1g4 -C12,C12,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 -C12,"McCutcheon Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 -C12,"Olland (Dutch) Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5c1 -C12,"Lasker Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5d2 b4c3 -C12,"Duras Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5d2 b4c3 7.b2c3 f6e4 8.d1g4 e8f8 9.d2c1 -C12,"Tartakower Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5d2 f6d7 -C12,"Janowski Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5e3 -C12,"Bernstein Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5h4 -C12,"Chigorin Variation, French�",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.e5f6 -C12,"Grigoriev Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.e5f6 h6g5 7.f6g7 h8g8 8.h2h4 g5h4 9.d1g4 -C13,"Vistaneckis (Nimzovich) Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6g8 -C13,"Frankfurt Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6g8 6.g5e3 b7b6 -C14,C14,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 -C14,"Anderssen (Richter) Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.g5f6 -C14,"Tartakower Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6e4 -C14,"Classical Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 -C14,"Tarrasch Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.f1d3 -C14,"Steinitz Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.f2f4 -C14,"Alapin Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.c3b5 -C14,"Rubinstein Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.d1d2 -C14,"Pollock Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.d1g4 -C14,"Chatard-Alekhine; Albin Attack, Fr",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 -C14,"Maroczy Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 a7a6 -C14,"Albin-Chatard Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 e7g5 7.h4g5 d8g5 -C14,"Breyer Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 c7c5 -C14,"Teichmann Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 f7f6 -C14,"Spielmann Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 e8g8 -C15,"Winckelmann-Riemer Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.a2a3 -C15,"Fingerslip Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.c1d2 -C15,"Kunin Double Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.c1d2 d5e4 5.d1g4 d8d4 -C15,"Schwarz's Line, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.c1d2 g8e7 5.c3b1 -C15,"Kondratiyev Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.f1d3 c7c5 5.e4d5 d8d5 6.c1d2 -C15,"Delayed Exchange Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4d5 -C15,"Alekhine (Maroczy) Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.g1e2 -C15,"Kan Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.g1e2 d5e4 5.a2a3 b4c3 6.e2c3 b8c6 -C16,C16,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 -C16,"Petrosian Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 d8d7 -C17,C17,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 -C17,"Bogoljubow Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.c1d2 -C17,"Icelandic Defense, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.c1d2 g8e7 6.f2f4 -C17,"Moscow Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.d1g4 -C18,"Swiss (Retreat) Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 b4a5 -C18,"Armenian Line, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 b4a5 6.b2b4 c5d4 -C18,"Maroczy-Willis Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 c5d4 6.a3b4 d4c3 -C19,C19,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 b4c3 6.b2c3 g8e7 -C19,"Poisoned Pawn Variation, French Winawer",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 b4c3 6.b2c3 g8e7 7.d1g4 -C20,King Pawn Game; C20,1.e2e4 e7e5 -C20,Mengarini Opening,1.e2e4 e7e5 2.a2a3 -C20,Portuguese Opening,1.e2e4 e7e5 2.f1b5 -C20,Miguel Gambit,1.e2e4 e7e5 2.f1b5 f8c5 3.b2b4 -C20,Tortoise Opening,1.e2e4 e7e5 2.f1d3 -C20,Macleod Attack,1.e2e4 e7e5 2.c2c3 -C20,Norwalder Gambit,1.e2e4 e7e5 2.c2c3 d7d5 3.d1h5 f8d6 -C20,Lasa Gambit,1.e2e4 e7e5 2.c2c3 f7f5 -C20,Whale Opening,1.e2e4 e7e5 2.c2c4 -C20,Bavarian Gambit,1.e2e4 e7e5 2.c2c4 d7d5 -C20,Clam Variation; Leonardis Variation,1.e2e4 e7e5 2.d2d3 -C20,Indian Opening,1.e2e4 e7e5 2.d2d3 -C20,Weber Gambit,1.e2e4 e7e5 2.d2d3 d7d5 3.e4d5 c7c6 4.d5c6 b8c6 -C20,King's Gambit Reversed�,1.e2e4 e7e5 2.d2d3 f7f5 -C20,Radisch Gambit,1.e2e4 e7e5 2.d2d3 g8f6 3.f2f4 f8c5 -C20,Krejcik Gambit,1.e2e4 e7e5 2.f2f3 g8f6 3.f1c4 f8c5 4.g1e2 b8c6 5.b2b4 -C20,King's Head Opening,1.e2e4 e7e5 2.f2f3 g8f6 3.b1c3 -C20,Alapin Opening,1.e2e4 e7e5 2.g1e2 -C20,Napoleon Attack,1.e2e4 e7e5 2.d1f3 -C20,Wayward Queen; Danvers; Parnham,1.e2e4 e7e5 2.d1h5 -C20,Mellon Gambit,1.e2e4 e7e5 2.d1h5 b8c6 3.f1c4 g8h6 4.d2d3 g7g6 5.h5f3 f7f6 6.g1e2 d7d5 -C20,Kiddie Countergambit,1.e2e4 e7e5 2.d1h5 g8f6 -C21,Beyer Gambit,1.e2e4 e7e5 2.d2d4 d7d5 -C21,Philidor Gambit,1.e2e4 e7e5 2.d2d4 d7d6 3.d4e5 c8d7 -C21,Center Game Accepted,1.e2e4 e7e5 2.d2d4 e5d4 -C21,Von der Lasa Gambit,1.e2e4 e7e5 2.d2d4 e5d4 3.f1c4 -C21,"Ross Gambit, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.f1d3 -C21,Danish Gambit,1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 -C21,"Sorensen Defense, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d7d5 -C21,Danish Gambit Accepted,1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 -C21,"Copenhagen Defense, Danish Gambit",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 f8b4 -C21,"Schlechter Defense, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 d7d5 -C21,"Classical Defense, Danish Gambit",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 g8f6 -C21,"Chigorin Defense, Danish Gambit",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 d8e7 -C21,"Svenonius Defense, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 g8e7 -C21,Halasz-McDonnell Gambit,1.e2e4 e7e5 2.d2d4 e5d4 3.f2f4 -C21,"Crocodile Variation, Center Game",1.e2e4 e7e5 2.d2d4 e5d4 3.f2f4 f8c5 4.g1f3 b8c6 5.c2c3 -C21,"Lanc-Arnold Gambit, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.g1f3 f8c5 4.c2c3 -C21,"Scippler Gambit, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.g1f3 f8c5 4.c2c3 d4c3 5.f1c4 -C22,C22,1.e2e4 e7e5 2.d2d4 e5d4 3.d1d4 -C22,"Hall Variation, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.d1d4 b8c6 4.d4c4 -C22,"Kupreichik Variation, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.d1d4 b8c6 4.d4e3 g8f6 5.b1c3 f8b4 6.c1d2 e8g8 7.e1c1 f8e8 8.f1c4 -C23,Bishop's Opening; C23,1.e2e4 e7e5 2.f1c4 -C23,Anderssen Gambit,1.e2e4 e7e5 2.f1c4 b7b5 3.c4b5 c7c6 -C23,Thorold Gambit,1.e2e4 e7e5 2.f1c4 b7b5 3.c4b5 f7f5 -C23,"MacDonnell Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.b2b4 -C23,"Labourdonnais-Denker Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.b2b4 c5b4 4.c2c3 -C23,"McDonnell Double Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.b2b4 c5b4 4.f2f4 -C23,"Philidor Variation, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.c2c3 -C23,"Lewis Counter-Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.c2c3 d7d5 -C23,"Lewis Countergambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.c2c3 d7d5 4.c4d5 g8f6 -C23,"Walker Variation, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.c2c3 d7d5 4.c4d5 g8f6 5.d2d4 -C23,"Lewis Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.d2d4 -C23,"Stein Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.f2f4 -C23,"Lopez Variation, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.d1e2 -C23,"Lopez Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.d1e2 g8f6 4.f2f4 -C23,"Khan Gambit, Bishop",1.e2e4 e7e5 2.f1c4 d7d5 -C23,"King's Gambit Reversed, Bishop",1.e2e4 e7e5 2.f1c4 f7f5 -C23,Calabrese Counter-Gambit,1.e2e4 e7e5 2.f1c4 f7f5 -C23,"Kreijcik Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.f2f3 f8c5 4.g1e2 b8c6 5.b2b4 -C23,"Greco Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.f2f4 -C23,"Horwitz Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.b1c3 b7b5 -C23,"Blanel Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.b1c3 f6e4 -C23,"Paschmann Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.g1e2 f6e4 4.e2c3 -C23,"Meitner-Mieses Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f1c4 f8c5 4.d1g4 d8f6 5.c3d5 -C23,"Bronstein Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f1c4 g8f6 4.f2f4 f6e4 5.g1f3 -C24,"Spielmann Attack, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d3 f8c5 4.b1c3 -C24,"Kitchner Folly, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d3 f8e7 4.g1f3 e8g8 -C24,"Vienna Hybrid, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d3 b8c6 4.b1c3 -C24,"Hromadka Variation, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d3 b8c6 4.b1c3 f8b4 5.g1e2 -C24,"Warsaw Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d4 e5d4 4.c2c3 -C24,Urusov; Ouroussoff; Keidansky G,1.e2e4 e7e5 2.f1c4 g8f6 3.d2d4 e5d4 4.g1f3 -C24,"Keidansky Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d4 e5d4 4.g1f3 f6e4 5.d1d4 -C25,"Zhuravlev Counter-Gambit, Vienna",1.e2e4 e7e5 2.b1c3 f8b4 3.d1g4 -C25,"Zhuraviev Countergambit, Vienna",1.e2e4 e7e5 2.b1c3 f8b4 3.d1g4 g8f6 -C25,"Anderssen Defense, Vienna",1.e2e4 e7e5 2.b1c3 f8c5 -C25,"Hamppe-Mietner Variation, Vienna",1.e2e4 e7e5 2.b1c3 f8c5 3.c3a4 -C25,"Giraffe Attack, Vienna",1.e2e4 e7e5 2.b1c3 f8c5 3.d1g4 -C25,"Omaha Gambit, Vienna",1.e2e4 e7e5 2.b1c3 d7d6 3.f2f4 -C25,"Fyfe Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.d2d4 -C25,"Philidor Countergambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.d2d4 f7f5 -C25,"Alapin Variation, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 -C25,Vienna Gambit,1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 -C25,"Quelle Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 f8c5 4.f4e5 d7d6 -C25,"Steinitz Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 -C25,"Fraser-Minckwitz Variation, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 d8h4 5.e1e2 b7b6 -C25,"Zukertort Defense, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 d8h4 5.e1e2 d7d5 -C25,"Paulsen Defense, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 d8h4 5.e1e2 d7d6 -C25,"Soerensen Defense, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 d8h4 5.e1e2 g7g5 -C25,"Knight Variation, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 -C25,"Cunningham Defense, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 f8e7 -C25,"Hamppe-Muzio Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 g7g5 5.f1c4 g5g4 6.e1g1 -C25,"Pierce Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 g7g5 5.d2d4 -C25,"Hamppe-Allgaier Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 g7g5 5.h2h4 g5g4 6.f3g5 -C25,Hamppe-Allgaier-Thorold Gambit,1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 g7g5 5.h2h4 g5g4 6.f3g5 h7h6 7.g5f7 e8f7 8.d2d4 -C25,"Paulsen Variation, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.g2g3 -C25,Mariotti Gambit,1.e2e4 e7e5 2.b1c3 b8c6 3.g2g3 f8c5 4.f1g2 h7h5 5.g1f3 h5h4 -C25,"Polluck Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.g2g3 f8c5 4.f1g2 b8c6 5.g1e2 d7d5 6.e4d5 -C25,"Erben Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.g2g3 d7d5 4.e4d5 c7c6 -C26,"Falkbeer Variation, Vienna; C26",1.e2e4 e7e5 2.b1c3 g8f6 -C26,"Mengarini Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.a2a3 -C26,"Oxford Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.d2d3 -C26,"Mieses Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.g2g3 -C27,"Stanley Variation, Vienna; C27",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 -C27,"Reversed Spanish, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f8b4 -C27,"Bishop Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f8c5 -C27,"Eifel Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f8c5 4.g1e2 b7b5 -C27,"Modern Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 -C27,"Boden-Kieseritzky Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.g1f3 -C27,"Monster Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.d1h5 e4d6 5.c4b3 f8e7 -C27,"Alekhine Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.d1h5 e4d6 5.c4b3 f8e7 6.g1f3 b8c6 7.f3e5 -C27,"Adams Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.d1h5 e4d6 5.c4b3 b8c6 6.d2d4 -C27,"Frankenstein-Dracula Var, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.d1h5 e4d6 5.c4b3 b8c6 6.c3b5 g7g6 7.h5f3 f7f5 8.f3d5 d8e7 -C28,"Three Knights Variation, Vienna; C28",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 b8c6 -C29,"Vienna Gambit, Vienna; C29",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 -C29,"Steinitz Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.d2d3 -C29,"Breyer Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.g1f3 f8e7 -C29,"Kaufmann Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.g1f3 c8g4 6.d1e2 -C29,"Paulsen Attack, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.d1f3 -C29,"Bardeleben Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.d1f3 f7f5 -C30,King's Gambit; C30,1.e2e4 e7e5 2.f2f4 -C30,"Heath Variation, KGD; Rotlewi Countergambit",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 d7d6 4.b2b4 -C30,"Marshall (Euwe) Attack, KGD",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 d7d6 4.c2c3 c8g4 5.f4e5 d6e5 6.d1a4 -C30,"Rubinstein Countergambit, KGD",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 d7d6 4.c2c3 f7f5 -C30,"Svenonius Variation, KGD",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 d7d6 4.b1c3 g8f6 5.f1c4 b8c6 6.d2d3 c8g4 -C30,"Senechaud Counter-Gambit, KGD",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 g7g5 -C30,"Mafia Defense, KGD",1.e2e4 e7e5 2.f2f4 c7c5 -C30,"Panteldakis Countergambit, KGD",1.e2e4 e7e5 2.f2f4 f7f5 -C30,"Soller-Zilbermints Gambit, KGD",1.e2e4 e7e5 2.f2f4 f7f6 3.f4e5 b8c6 -C30,Zilbermints Double Countergambit; KGD,1.e2e4 e7e5 2.f2f4 g7g5 -C30,"Queen's Knight Defense, KGD",1.e2e4 e7e5 2.f2f4 b8c6 -C30,"Miles Defense, KGD",1.e2e4 e7e5 2.f2f4 b8c6 3.g1f3 f7f5 -C30,"Zilbermints Double Gambit I, KGD",1.e2e4 e7e5 2.f2f4 b8c6 3.g1f3 g7g5 -C30,"Petrov's Defense, KGD",1.e2e4 e7e5 2.f2f4 g8f6 -C30,"Norwalde (Norwalder) Variation, KGD",1.e2e4 e7e5 2.f2f4 d8f6 -C30,"Schubert Variation, KGD",1.e2e4 e7e5 2.f2f4 d8f6 3.b1c3 f6f4 4.d2d4 -C30,"Keene Defense, KGD",1.e2e4 e7e5 2.f2f4 d8h4 3.g2g3 h4e7 -C31,"Hinrichsen Gambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.d2d4 -C31,"Falkbeer Countergambit Accepted, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 -C31,"Miles Gambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 f8c5 -C31,"Nimzovich-Marshall Variation, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 c7c6 -C31,"Marshall C-G, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 c7c6 -C31,"Pickler Gambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 c7c6 4.d5c6 f8c5 -C31,"Nimzovich Variation, KGD; Anderssen Attack",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 4.f1b5 -C31,"Blackbunre Attack, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.g1f3 -C32,"Staunton Line, KGD; C32",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 -C32,"Morphy Defense, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 4.d2d3 g8f6 5.b1c3 f8b4 6.c1d2 e4e3 -C32,"Keres Variation, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 4.d2d3 g8f6 5.b1d2 -C32,"Old Line, Falkbeer Countergambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 4.d2d3 g8f6 5.d1e2 -C32,"Modern Transfer, Falkbeer Countergambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5f4 -C33,King's Gambit Accepted; C33,1.e2e4 e7e5 2.f2f4 e5f4 -C33,"Orsini Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.b2b3 -C33,"Schurig Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1b5 -C33,"Bishop's Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 -C33,"Kieseritzky Gambit, Bishop's Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 b7b5 -C33,"Lopez Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 c7c6 -C33,"Bledow; Morphy Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d7d5 -C33,"Bledow Countergambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d7d5 4.c4d5 g8f6 -C33,"Gianutio Counter-Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 f7f5 -C33,"Anderssen Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 g7g5 -C33,"Maurian Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 b8c6 -C33,Cozio; Hanneken; Prussian; Lichtenhein,1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 g8f6 -C33,"Bogoljubow Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 g8f6 4.b1c3 -C33,"Bogoljubov; Jaenisch Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 g8f6 4.b1c3 c7c6 -C33,"Bryan; Kieseritzky Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 b7b5 -C33,"Greco Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 f8c5 -C33,"Cozio Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 d7d6 -C33,"Classical Defense, KGA; Lopez Variation",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 -C33,"Grimm Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 5.b1c3 f8g7 6.d2d4 d7d6 7.e4e5 -C33,"MacDonnell Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 5.b1c3 f8g7 6.d2d4 g8e7 7.g2g3 -C33,"Fraser Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 5.b1c3 f8g7 6.g2g3 f4g3 7.d1f3 -C33,"Cozio Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 5.d1f3 -C33,"Boden Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 b8c6 -C33,"Jaenisch Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g8f6 -C33,"Jaenisch Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 h4f6 -C33,Lesser Bishop; Tartakower,1.e2e4 e7e5 2.f2f4 e5f4 3.f1e2 -C33,"Weiss Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1e2 f7f5 4.e4f5 d7d6 -C33,"Central; Polerio; Willemson, Steinitz",1.e2e4 e7e5 2.f2f4 e5f4 3.d2d4 -C33,"Gaga Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g2g3 -C33,"Gama Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g2g3 f4g3 4.g1f3 -C33,"Leonardo (Stamma) Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.h2h4 -C33,"Drunken King, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.e1f2 -C33,"Keres, Mason, Parnu, Requena",1.e2e4 e7e5 2.f2f4 e5f4 3.b1c3 -C33,"Requena Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.b1c3 d8h4 -C33,"Paris Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1e2 -C33,"Eisenberg Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1h3 -C33,"Basman Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1e2 -C33,"Bilguer-Mirage Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1e2 -C33,"Breyer; Hungarian; Carrera, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1f3 -C33,"Dodo Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1g4 -C33,"Carrera Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1h5 -C34,"King's Knight Gambit, KGA; C34",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 -C34,"Fischer Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 d7d6 -C34,"Schulder Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 d7d6 4.b2b4 -C34,"Gianutio Countergambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 f7f5 -C34,"Becker; Anti-Kieseritzky Var, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 h7h6 -C34,"MacLeod Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 b8c6 -C34,"Bonsch-Osmolovsky Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g8e7 -C34,"Schallop Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g8f6 -C34,"Tashkent Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g8f6 4.e4e5 f6h5 5.g2g4 -C35,"Cunningham Gambit, KGA; C35",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 f8e7 -C35,"Bertin; Three Pawns Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 f8e7 4.f1c4 e7h4 5.g2g3 -C35,"Neo-Cunningham Gambit, KGA; McCormick Defense",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 f8e7 4.f1c4 g8f6 -C36,"Scandinavian Variation, KGA; Modern Defense, KGA; C36",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 d7d5 -C36,"Abbazia Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 d7d5 4.e4d5 g8f6 -C37,C37,1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 -C37,"Ghulam Kassim; Koch Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 -C37,"Middleton Counter-Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 d7d6 5.e1g1 c8g4 6.h2h3 h7h5 7.h3g4 -C37,"Greco-Lolli; Wild Muzio Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.c4f7 -C37,"Young Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.c4f7 e8f7 6.e1g1 g4f3 7.d1f3 d8f6 8.d2d4 f6d4 9.c1e3 -C37,"Koch; Ghulam Kassim Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.d2d4 -C37,Kotov Gambit,1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.d2d4 g4f3 6.c1f4 -C37,"Ghulam-Kassim Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.d2d4 g4f3 6.d1f3 -C37,"Australian Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.h2h4 -C37,"MacDonnell Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.b1c3 -C37,"Anderssen Counter-Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.f3e5 d8h4 6.e1f1 g8h6 7.d2d4 d7d6 -C37,"Muzio-Polerio Gambit, KGA; Wild Muzio",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 -C37,"Brentano Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 d7d5 -C37,"Holloway Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 b8c6 -C37,"From Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8e7 -C37,"Sarratt Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 -C37,"Young Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.c4f7 e8f7 8.d2d4 f6d4 9.c1e3 d4f6 -C37,"Double Muzio Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.e4e5 f6e5 8.c4f7 -C37,"Paulsen Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.e4e5 f6e5 8.d2d3 f8h6 9.b1c3 g8e7 10.c1d2 -C37,"Bello Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.b1c3 -C37,"Baldwin Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.b1c3 f6d4 8.g1h1 d4c4 9.c3d5 -C37,"Kling & Horwitz Counter-Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 d8e7 -C37,"Blachy Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 b8c6 -C37,"Rosentreter Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.d2d4 -C37,"Rosentreter-Testa Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.d2d4 g5g4 5.c1f4 -C37,"Quaade; Taylor Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.b1c3 -C38,"Traditional Variation, KGA; C38",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 -C38,"Mayet Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.d2d4 d7d6 6.c2c3 -C38,"Philidor Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.h2h4 -C38,"Greco Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.h2h4 h7h6 6.d2d4 d7d6 -C38,"Schultz Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.h2h4 h7h6 6.d2d4 d7d6 7.d1d3 -C38,"Hanstein Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.e1g1 -C39,C39,1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 -C39,"Kieseritzky Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 -C39,"Paulsen Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 f8g7 -C39,"Campbell; Brentano; Morphy Var, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 d7d5 -C39,"Green; Kolisch Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 d7d6 -C39,"Long Whip Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 h7h5 -C39,"Cotter Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 h7h6 6.e5f7 -C39,"Neumann Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 b8c6 -C39,"Berlin Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 -C39,"Anderssen Defense, Kieseritsky Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8d6 -C39,"Anderssen-Cordel Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8d6 8.d2d4 f6h5 9.c1f4 h5f4 -C39,"Rice Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8d6 8.e1g1 -C39,"Rice Gambit Accepted, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8d6 8.e1g1 d6e5 -C39,"Paulsen Defense Deferred, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8g7 -C39,"Rubinstein Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.d2d4 -C39,"Riviere Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.e5g4 d7d5 -C39,"Rosenthal; Stockwhip Var, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 d8e7 -C39,"Allgaier; Cotter Cambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 -C39,"Walker (Urusov) Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 h7h6 6.g5f7 e8f7 7.f1c4 -C39,"Urusov Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 h7h6 6.g5f7 e8f7 7.f1c4 d7d5 8.c4d5 f7e8 9.d2d4 -C39,"Thorold Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 h7h6 6.g5f7 e8f7 7.d2d4 -C39,"Horny Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 h7h6 6.g5f7 e8f7 7.d1g4 g8f6 8.g4f4 -C40,King's Knight Opening; C40,1.e2e4 e7e5 2.g1f3 -C40,Glatz Gambit; Busch-Gass Gambit,1.e2e4 e7e5 2.g1f3 f8c5 -C40,Chiodini Gambit,1.e2e4 e7e5 2.g1f3 f8c5 3.f3e5 b8c6 -C40,Jalalabad Defense,1.e2e4 e7e5 2.g1f3 c7c5 -C40,Gunderam Gambit,1.e2e4 e7e5 2.g1f3 c7c6 -C40,Queen's Pawn Counter-Gambit; Elephant Gambit,1.e2e4 e7e5 2.g1f3 d7d5 -C40,Maroczy; Elephant Gambit,1.e2e4 e7e5 2.g1f3 d7d5 3.e4d5 f8d6 -C40,Halasz-Jacobsen Gambit,1.e2e4 e7e5 2.g1f3 d7d5 3.e4d5 f8d6 -C40,Maroczy Gambit,1.e2e4 e7e5 2.g1f3 d7d5 3.e4d5 f8d6 -C40,Paulsen Counter-Gambit,1.e2e4 e7e5 2.g1f3 d7d5 3.e4d5 e5e4 -C40,Wasp Variation,1.e2e4 e7e5 2.g1f3 d7d5 3.f3e5 d5e4 4.f1c4 d8g5 -C40,Latvian; Greco Counter-Gambit,1.e2e4 e7e5 2.g1f3 f7f5 -C40,"Senechaud Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.b2b4 -C40,"Strautins Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f1c4 b7b5 -C40,"Poisoned Pawn Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f1c4 f5e4 4.f3e5 d8g5 5.d2d4 g5g2 -C40,"Morgado Defense, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f1c4 g8f6 -C40,"Diepstraten Countergambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.c2c4 -C40,"Clam Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.d2d3 b8c6 4.e4f5 -C40,"Mason Countergambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.d2d4 -C40,Latvian Gambit Accepted,1.e2e4 e7e5 2.g1f3 f7f5 3.e4f5 -C40,"Lobster Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.g2g4 -C40,"Mlotkowski Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.b1c3 -C40,"Fraser Defense, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 b8c6 -C40,"Corkscrew Counter-Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 g8f6 4.f1c4 f5e4 5.e5f7 d8e7 6.f7h8 d7d5 -C40,"Greco Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8e7 -C40,"Mail Line, Latvian Gambit Accepted",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 -C40,"Bilguer Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 d7d6 5.e5c4 -C40,"Bronstein Attack, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 d7d6 5.e5c4 f5e4 6.f1e2 -C40,"Nimzovich Attack, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 d7d6 5.e5c4 f5e4 6.c4e3 -C40,"Bronstein Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 d7d6 5.e5c4 f5e4 6.d1h5 g7g6 7.h5e2 -C40,"Foltys-Leonhardt Variation, Latvian Gambit",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.e5c4 -C40,"Foltys Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.e5c4 f5e4 5.d2d3 -C40,"Leonhardt Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.e5c4 f5e4 5.b1c3 -C40,Damiano Defense,1.e2e4 e7e5 2.g1f3 f7f6 -C40,Damiano Gambit,1.e2e4 e7e5 2.g1f3 f7f6 3.f3e5 f6e5 4.d1h5 g7g6 5.h5e5 d8e7 6.e5h8 -C40,"Chigorin Gambit, Damiano",1.e2e4 e7e5 2.g1f3 f7f6 3.f3e5 d8e7 4.e5f3 d7d5 -C40,Levenstein; Queen's Defense; Brazilian; Gunderam,1.e2e4 e7e5 2.g1f3 d8e7 -C40,Gunderam Gambit,1.e2e4 e7e5 2.g1f3 d8e7 3.f1c4 f7f5 -C40,McConnell Defense,1.e2e4 e7e5 2.g1f3 d8f6 -C40,Greco Defense,1.e2e4 e7e5 2.g1f3 d8f6 -C40,Labourdonnais Gambit,1.e2e4 e7e5 2.g1f3 d8f6 3.f1c4 f6g6 4.e1g1 -C41,Philidor Defense; C41,1.e2e4 e7e5 2.g1f3 d7d6 -C41,"Lopez Counter-Gambit, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.f1c4 f7f5 -C41,Philidor Gambit,1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 c8d7 -C41,"Alapin-Blackburne Gambit, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 c8g4 4.d4e5 b8d7 -C41,"Exchange Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 -C41,"Morphy Gambit, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.f1c4 -C41,"Bird Gambit, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.c2c3 -C41,"Paulsen Attack, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.f3d4 d6d5 5.e4d5 -C41,"Larsen Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.f3d4 g7g6 -C41,"Boden Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.d1d4 c8d7 -C41,Philidor Counter Attack,1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 f7f5 -C41,"Zukertort Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 f7f5 4.b1c3 -C41,"Hanham; Lord Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 -C41,"Delmar Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 c7c6 5.c2c3 -C41,"Schlechter Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 c7c6 5.b1c3 -C41,"Krause Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 c7c6 5.e1g1 -C41,"Steiner Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 c7c6 5.e1g1 f8e7 6.d4e5 -C41,"Sharp Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 d7b6 -C41,"Jaenisch Counter-Attack, Philidor; Nimzovich Variation",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 -C41,"Klein Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.f1c4 -C41,"Sokolsky Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.d4e5 f6e4 5.b1d2 -C41,"Rellstab Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.d4e5 f6e4 5.d1d5 -C41,"Larobok Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.b1c3 b8d7 -C41,"Locock Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.f3g5 h7h6 5.g5f7 -C42,Petroff Defense; Russian Defense; C42,1.e2e4 e7e5 2.g1f3 g8f6 -C42,"Urosov Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f1c4 -C42,"Boden-Kieseritzky Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f1c4 f6e4 4.b1c3 -C42,"Lichtenhein Defense, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f1c4 f6e4 4.b1c3 d7d5 -C42,"Russian Three Knights Var, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.b1c3 -C42,"Paulsen Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5c4 -C42,"Karklins-Martinovsky Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5d3 -C42,"Millenium Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.f1d3 -C42,"Kaufmann Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.c2c4 -C42,"French Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d3 -C42,"Classical Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 -C42,"Marshall Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8d6 -C42,"Tarrasch Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8d6 7.e1g1 e8g8 8.c2c4 c8g4 -C42,"Staunton Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8d6 7.e1g1 e8g8 8.c2c4 c7c6 -C42,"Jaenisch Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 b8c6 8.c2c4 -C42,"Browne Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 b8c6 8.c2c4 c6b4 9.c4d5 -C42,"Chigorin Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 b8c6 8.f1e1 -C42,"Berger Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 b8c6 8.f1e1 c8g4 9.c2c3 f7f5 10.b1d2 -C42,"Mason Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 e8g8 -C42,"Mason-Showalter Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 b8c6 -C42,"Nimzovich Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.b1c3 -C42,"Lasker Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d1e2 -C42,"Cozio (Lasker) Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d1e2 -C42,"Cochrane Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f7 -C42,"Stafford Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 b8c6 -C42,"Damiano Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 f6e4 -C42,"Kholmov Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 f6e4 4.d1e2 d8e7 -C42,"Moody Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d1e2 b8c6 4.d2d4 -C43,"Modern Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 -C43,"Symmetrical Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 d7d5 -C43,"Suchting Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 e5d4 4.f1c4 -C43,"Tal Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 e5d4 4.e4e5 f6e4 5.f1b5 -C43,"Center Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 e5d4 4.e4e5 f6e4 5.d1d4 -C43,"Trifunovic Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 f6e4 4.f1d3 d7d5 5.f3e5 f8d6 6.e1g1 e8g8 7.c2c4 d6e5 -C43,"Murret Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 f6e4 4.f1d3 b8c6 -C43,"Steinitz Variation, Petoff; C43",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.d2d4 -C44,C44,1.e2e4 e7e5 2.g1f3 b8c6 -C44,Paschman Wing Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.b2b4 -C44,Taylor Opening; Inverted Hungarian,1.e2e4 e7e5 2.g1f3 b8c6 3.f1e2 -C44,Inverted Hanham Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.f1e2 g8f6 4.d2d3 d7d5 5.b1d2 -C44,Basman Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f1e2 g8f6 4.d2d4 e5d4 5.e4e5 -C44,"Spanish Variation, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.f1b5 -C44,"Nikitin Gambit, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.f1b5 d5e4 5.f3e5 d8d5 6.d1a4 -C44,"Caro Variation, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.d1a4 c8d7 -C44,"Steinitz Variation, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.d1a4 f7f6 -C44,"Leonhardt Variation, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.d1a4 g8f6 -C44,Ponziani Counter-Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 f7f5 -C44,"Schmidt Attack, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 f7f5 4.d2d4 d7d6 5.d4d5 -C44,"Jaenisch Counterattack, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 g8f6 -C44,"Neumann Gambit, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 g8f6 4.f1c4 -C44,"Breyer Opening, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 g8f6 4.d2d3 f8e7 5.b2b4 -C44,"Vukovic Gambit, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 g8f6 4.d2d4 f6e4 5.d4d5 f8c5 -C44,Dresden Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.c2c4 -C44,Scotch Game,1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 -C44,"MacLopez; Relfsson Gambit, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1b5 -C44,Scotch Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 -C44,"London Defense, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 f8b4 -C44,"Vitzhum Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 f8c5 5.f3g5 g8h6 6.d1h5 -C44,"Paulsen; Anderssen C-A, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 f8c5 5.e1g1 d7d6 6.c2c3 c8g4 -C44,"Benima Defense, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 f8e7 -C44,"Goering Gambit, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.c2c3 -C44,"Goering Gambit Declined, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.c2c3 d7d5 -C44,"Double Pawn Sacrifice, Goering Gambit",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.c2c3 d4c3 5.f1c4 -C44,"Bardeleben Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.c2c3 d4c3 5.b1c3 f8b4 6.f1c4 g8f6 -C44,"Lolli Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 c6d4 -C44,"Napoleon Gambit, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 c6d4 4.f3d4 e5d4 5.f1c4 -C44,Konstantinopolsky Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.g2g3 -C44,Chicago; Irish; Schulze-Muller Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f3e5 c6e5 4.d2d4 -C45,C45,1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 -C45,"Malaniuk Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8b4 -C45,"Classical Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 -C45,"Gunsberg Defense, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 g8e7 7.f1b5 c6d8 -C45,"Fleissig; Meitner Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 g8e7 7.d4c2 -C45,"Blackburne Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 g8e7 7.d1d2 -C45,"Millennium Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 f6g6 -C45,"Blumenfeld Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.d4b5 -C45,"Potter Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.d4b3 -C45,"Romanishin Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.d4b3 c5b4 -C45,"Geller Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.d4b3 c5b6 6.a2a4 a7a6 7.b1c3 g8f6 -C45,"Intermezzo Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.d4c6 d8f6 -C45,"Alekhine Gambit, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 g8f6 5.e4e5 -C45,Schmidt Var; Scotch Four Knights,1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 g8f6 5.b1c3 -C45,"Mieses Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 g8f6 5.d4c6 -C45,"Tartakower Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 g8f6 5.d4c6 b7c6 6.b1d2 -C45,"Steinitz; Pulling Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 -C45,"Braune Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.c1e3 -C45,"Horwitz Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.d4b5 -C45,"Steinitz Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.b1c3 -C45,"Modern Defesne, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.b1c3 f8b4 -C45,"Fraser Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.d4f3 -C45,"Paulsen Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.d4f5 -C45,"Paulsen Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 g8e7 7.f1b5 -C46,Three Knights Opening; C46,1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 -C46,"Schlechter Variation, Three Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 f8b4 4.c3d5 g8f6 -C46,"Winawer Defense, Three Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 f7f5 -C46,"Steinitz Defense, Three Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g7g6 -C46,"Rosenthal Variation, Three Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g7g6 4.d2d4 e5d4 5.c3d5 -C46,"Italian Variation, Four Knights��",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1c4 -C46,"Halloween Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f3e5 -C47,Four Knights Openng; C47,1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 -C47,"Gunsberg Variation, Four Kngiths",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.a2a3 -C47,"Provincial Opening, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.a2a3 d7d6 5.h2h3 -C47,"Noa Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1c4 f6e4 5.c4f7 -C47,"Bogoljubow (Scotch) Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 -C47,"Oxford Gambit, Four Kngihts",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 f8b4 5.d4d5 c6d4 -C47,"Krause Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 f8b4 5.f3e5 -C47,"Leonhardt Defense, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 f8b4 5.f3e5 d8e7 -C47,"Belgrade Gambit, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 e5d4 5.c3d5 -C47,"Schmid Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 e5d4 5.f3d4 f6e4 -C48,Spanish Four Knights Game; C48,1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 -C48,"Ranken Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 a7a6 5.b5c6 -C48,"Classical Variation, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8c5 -C48,"Marshall Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8c5 5.f3e5 c6d4 6.b5a4 e8g8 -C48,"Rubinstein Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 c6d4 -C49,"Double Ruy Lopez Opening, 4 Knights; C49",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 -C49,"Paulsen Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.b5c6 -C49,"Svenonius Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 b4c3 7.b2c3 d7d5 -C49,"Janowski Variation, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 b4c3 7.b2c3 d7d6 8.f1e1 -C49,"Symmetrical Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 -C49,"Bernstein Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 7.c1g5 b4c3 8.b2c3 c6e7 -C49,"Metger Unpin Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 7.c1g5 b4c3 8.b2c3 d8e7 9.f1e1 c6d8 -C49,"Pillsbury Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 7.c1g5 c6e7 -C49,"Maroczy Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 7.c3e2 -C49,"Blackburne Attack, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.c3d5 b4c5 7.d2d4 -C50,Italian Game; C50,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 -C50,Giuoco Piano; Italian Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 -C50,Lucchini Gambit; Italian,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.d2d3 f7f5 -C50,"Canal Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.d2d3 g8f6 5.b1c3 d7d6 6.c1g5 -C50,"Rosentreter Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.d2d4 -C50,"Italian Variation, Four Knights Game",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b1c3 g8f6 -C50,"Deutz Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.e1g1 g8f6 5.d2d4 -C50,Hungarian Defense,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8e7 -C50,Half Giuoco Piano; Semi-Italian Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 d7d6 -C50,Rousseau Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f7f5 -C50,"Shilling (Kostic) Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 c6d4 -C51,Evans Gambit; C51,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 -C51,"Lange Variation, Evans Gambit",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b6 5.b4b5 c6a5 6.f3e5 g8h6 -C51,Evans Gambit Accepted,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 -C51,"Normal Position, Evans Gambit",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 -C51,"Ulvestad Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 9.d4d5 c6a5 10.c1b2 -C51,"Paulsen Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 9.d4d5 c6a5 10.c1b2 g8e7 -C51,"Fraser Attack; Mortimer, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 9.b1c3 c8g4 10.d1a4 -C51,"Goering Attack, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 9.b1c3 c6a5 10.c1g5 -C51,"Stone-Ware Defense, Evans Gambit",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4d6 -C51,"Anderssen Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4e7 -C51,"Cordel Line, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4e7 6.d2d4 c6a5 -C51,"Hein Countergambit, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 d7d5 -C52,"Main Line, Evans Gambit; C52",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 -C52,"Leonhardt Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 b7b5 -C52,"Sokolsky Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 d7d6 7.c1g5 -C52,"Lasker Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 d7d6 7.e1g1 a5b6 -C52,"Tartakower Attack, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 d7d6 7.d1b3 -C52,"Pierce Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 -C52,"Schulen Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 7.e1g1 b7b5 -C52,"Waller Attack, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 7.e1g1 d7d6 8.d1b3 -C52,"Compromised Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 7.e1g1 d4c3 -C52,"Mieses Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 7.e1g1 g8e7 -C52,"Slow Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.e1g1 -C52,"Richardson Attack, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.e1g1 g8f6 7.d2d4 e8g8 8.f3e5 -C53,"Classical Variation, Italian; C53",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 -C53,"Labourdonnais Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 d7d6 5.d2d4 e5d4 6.c3d4 c5b6 -C53,"Alexandre Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 f7f5 -C53,Giuoco Pianissimo,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d3 -C53,"Center Attack, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 -C53,"Grevo Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 -C53,"Albin Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.e1g1 -C53,"Lewis Defense, Italian; Closed Variation",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 d8e7 -C53,"Mestel Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 d8e7 5.d2d4 c5b6 6.c1g5 -C54,C54,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 -C54,"Bird Attack, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.b2b4 -C54,"Cracow Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 c5b4 7.e1f1 -C54,"Moeller (Therkatz) Attack, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 c5b4 7.b1c3 f6e4 8.e1g1 b4c3 9.d4d5 -C54,"Therkatz-Herzog, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 c5b4 7.b1c3 f6e4 8.e1g1 b4c3 9.d4d5 c3f6 10.f1e1 c6e7 -C54,"Greco Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 c5b4 7.b1c3 f6e4 8.e1g1 e4c3 -C54,"Mason Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.e1g1 -C55,Two Knights Defense; C55,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 -C55,De Riviere Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.c2c3 -C55,Modern Bishop's Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d3 -C56,"Open Variation, Two Knights Defense; C56",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 -C56,"Perreux Variation, Two Knights Defense",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.f3g5 -C56,Scotch Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 -C56,Max Lange Attack,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f8c5 6.e4e5 -C56,"Loman Defense, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f8c5 6.e4e5 d7d5 7.e5f6 d5c4 8.f1e1 c8e6 9.f3g5 g7g6 -C56,"Marshall Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f8c5 6.e4e5 d7d5 7.e5f6 d5c4 8.f1e1 c5e7 9.f3g5 d8d5 10.b1c3 d5f5 -C56,"Double Gambit Accepted, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f6e4 -C56,"Nachmanson Gambit, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f6e4 6.b1c3 -C57,"Prussian Game; Knight Attack, Two Knights; C57",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 -C57,"Traxler; Wilkes-Barre Var, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 f8c5 -C57,"Trencianske-Teplice Gambit, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 f8c5 5.c4f7 e8e7 6.d2d4 -C57,"Ulvestad Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 b7b5 -C57,"Kurkin Gambit, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 b7b5 6.c4f1 h7h6 7.g5f7 -C57,"Kloss Gambit, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6b4 -C57,"Fritz Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6d4 -C57,"Berliner Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6d4 6.c2c3 b7b5 7.c4f1 f6d5 8.g5e4 d8h4 -C57,"Lolli Attack, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 f6d5 6.d2d4 -C57,"Fried Liver; Fegatello Attack, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 f6d5 6.g5f7 -C57,"Ponziani-Steintz Gambit, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 f6e4 -C58,"Polerio Defense, Two Knights; C58",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 -C58,"Bogoljubow Variation, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.d1f3 -C58,"Colman Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.d1f3 a8b8 -C58,"Kieseritzky; Morphy Var, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.d2d3 -C58,"Yankovich Variation, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.d2d3 h7h6 7.g5f3 e5e4 8.d1e2 a5c4 9.d3c4 f8c5 10.f3d2 -C59,C59,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.b5e2 -C59,"Suhle Defense, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.b5e2 h7h6 -C59,"Goering Variation, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.b5e2 h7h6 9.g5f3 e5e4 10.f3e5 -C60,Ruy Lopez; Spanish Opening; C60,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 -C60,"Bulgarian Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a5 -C60,"Rotary-Albany Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 b7b6 -C60,"Alapin Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8b4 -C60,"Alapin Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8b4 4.c2c3 b4a5 5.b5c6 d7c6 -C60,"Lucena Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8e7 -C60,"Sawyer's Gambit, Ruy Lopez; Spanish Countergambit",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d5 -C60,"Harding Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d5 4.f3e5 d8g5 5.e5c6 -C60,"Fricke Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d5 4.f3e5 d8g5 5.e1g1 -C60,"Nuremberg Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f6 -C60,"Brentano Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g7g5 -C60,"Barnes; Smyslov; Fianchetto Var, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g7g6 -C60,"Cozio Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8e7 -C60,"Tartakower Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8e7 4.d2d4 e5d4 5.f3d4 g7g6 6.b1c3 f8g7 7.c1e3 e8g8 8.d1d2 d7d5 -C60,"Paulsen Variation, Cozio Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8e7 4.b1c3 g7g6 -C60,"Vinogradov Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d8e7 -C60,"Frankfort; Gunderam Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d8f6 -C61,"Bird Defense, Ruy Lopez; C61",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 c6d4 -C61,"Paulsen Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 c6d4 4.f3d4 e5d4 5.e1g1 g8e7 -C62,"Steinitz Defense, Ruy Lopez; C62",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d6 -C62,"Nimzovich Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d6 4.d2d4 c8d7 5.b1c3 g8f6 6.b5c6 -C62,"Center Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d6 4.d2d4 e5d4 5.e1g1 -C63,"Schliemann; Jaenisch Var, Ruy Lopez; C63",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 -C63,"Exchange Variation, Schliemann Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b5c6 -C63,"Schoenemann Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.d2d4 -C63,"Jaenisch Gambit Accepted, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.e4f5 -C63,"Kostic Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 f5e4 5.c3e4 f8e7 -C63,"Moehring Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 f5e4 5.c3e4 d7d5 6.f3e5 d5e4 7.e5c6 d8d5 -C63,"Tartakower Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 f5e4 5.c3e4 g8f6 -C63,"Soviet Youth Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 c6d4 5.e1g1 -C63,"Kostic Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 g8f6 5.e4f5 f8c5 -C64,"Classical; Cordel Var, Ruy Lopez; C64",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 -C64,"Spanish Wing Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.b2b4 -C64,"Charousek Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 c5b6 -C64,"Konikowski Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 d7d5 -C64,"Cordel Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 f7f5 -C64,"Benelux Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 g8f6 5.d2d4 c5b6 6.e1g1 e8g8 -C64,"Boden Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 d8e7 -C64,"Zaitsev Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.e1g1 c6d4 5.b2b4 -C64,"Zukertort Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.e1g1 g8f6 5.c2c3 -C65,"Berlin Defense, Ruy Lopez; C65",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 -C65,"Kaufmann Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 f8c5 5.c1e3 -C65,"Anderssen Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 d7d6 5.b5c6 -C65,"Duras Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 d7d6 5.c2c4 -C65,"Mortimer Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 c6e7 -C65,"Mortimer Trap, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 c6e7 5.f3e5 c7c6 -C65,"Nyholm Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d4 e5d4 5.e1g1 -C65,"Beverwijk Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f8c5 -C66,"Improved Steinitz Defense, Ruy Lopez; C66",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 -C66,"Hedgehog Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 f8e7 -C66,"Closed Bernstein Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 f8e7 7.c1g5 -C66,"Closed Showalter Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 f8e7 7.b5c6 -C66,"Tarrasch Trap, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 f8e7 7.f1e1 e8g8 -C66,"Closed Wolf Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 e5d4 -C66,"Fishing Pole Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6g4 -C67,"Rio Gambit Accepted, Ruy Lopez; C67",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 -C67,"Rosenthal Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 a7a6 -C67,"Rio de Janeiro Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 -C67,"Minckwitz Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d4e5 -C67,"Trifunovic Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 d7d5 -C67,"Pillsbury Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6b7 9.b2b3 -C67,"Zukertort Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6b7 9.c2c4 -C67,"Berlin; Rio de Janerio Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6b7 9.b1c3 e8g8 10.f1e1 -C67,"Winawer Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6b7 9.f3d4 e8g8 -C67,"Cordel Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6f5 -C67,"L'Hermet Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 e4d6 -C67,"Westerinen Line, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 e4d6 6.b5c6 d7c6 7.d4e5 d6e4 -C68,"Morphy Defense, Ruy Lopez; C68",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 -C68,"Exchange Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 -C68,"Lutikov Variation, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 b7c6 -C68,"Keres Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 b7c6 5.b1c3 -C68,"Romanovsky Variation, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 b7c6 5.b1c3 f7f6 6.d2d3 -C68,"Alekhjne Variation, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.d2d4 e5d4 6.d1d4 d8d4 7.f3d4 f8d6 -C68,"Barendregt-Fischer Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 -C68,"King's Bishop Variation, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 f8d6 -C68,"Alapin Gambit, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 c8g4 6.h2h3 h7h5 -C69,"Gligoric Variation, Ruy Lopez; C69",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 f7f6 -C69,"Bronstein Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 d8d6 -C70,"Morphy Defense, Ruy Lopez; C70",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 -C70,"Caro Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 b7b5 -C70,"Graz Variation, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 b7b5 5.a4b3 f8c5 -C70,"Furman-Taimanov; Wing Var, Ruy; Norwegian Variation",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 b7b5 5.a4b3 c6a5 -C70,"Nightingale Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 b7b5 5.a4b3 c6a5 6.b3f7 -C70,"Alapin's Defense Deferred, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 f8b4 -C70,"Classical Defense Deferred, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 f8c5 -C70,"Schliemann Defense Deferred, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 f7f5 -C70,"Jaenisch Gambit Deferred, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 f7f5 5.e4f5 -C70,"Cozio Defense Deferred, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8e7 -C71,Steinitz Defense Deferred; Ruy Lopez; C71,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 -C71,"Modern Steinitz Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 -C71,"Keres Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c4 -C71,"Noah's Ark Trap, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.d2d4 b7b5 6.a4b3 e5d4 7.f3d4 c6d4 8.d1d4 c7c5 9.d4d5 c8e6 10.d5c6 e6d7 -C72,C72,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.e1g1 -C73,C73,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.a4c6 b7c6 -C73,"Richter Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.a4c6 b7c6 6.d2d4 -C73,"Alapin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.a4c6 b7c6 6.d2d4 f7f6 -C74,C74,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 -C74,"Siesta Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 f7f5 -C74,"Kopaiev Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 f7f5 6.e4f5 c8f5 7.e1g1 -C75,C75,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 c8d7 -C76,C76,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 c8d7 6.d2d4 g7g6 -C77,C77,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 -C77,Treybel; Flohr; Exchange Var Deferred,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.a4c6 -C77,"Bayreuth Variation, ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.a4c6 -C77,"Jaffe Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.c2c3 -C77,"Anderssen Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d2d3 -C77,"Duras Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d2d3 d7d6 6.c2c4 -C77,"Mackenzie Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d2d4 -C77,"Center Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d2d4 e5d4 -C77,"Nimzovich; Tarrasch Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.b1c3 -C77,"Wormald Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d1e2 -C78,"Normal Variation, Ruy Lopez; C78",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 -C78,"Shannon Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 b7b5 6.a4b3 c8b7 7.f3g5 d7d5 -C78,"Wing Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 b7b5 6.a4b3 f8e7 7.a2a4 -C78,"Neo-Steinitz Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 b7b5 6.a4b3 d7d6 -C78,"Moeller Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8c5 -C79,"Central Countergambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 d7d5 -C79,"Russian Defense, Ruy Lopez; C79; Lasker Defense",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 d7d6 -C79,"Brix Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 g7g6 -C80,"Tarrasch; Open Variation, Ruy Lopez; C80",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 -C80,"Schlechter Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.a2a4 c6d4 -C80,"Berger Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.a2a4 c6d4 9.f3d4 e5d4 10.b1c3 -C80,"Harksen Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.c2c4 -C80,"Bernstein Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.b1d2 -C80,"Karpov Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.b1d2 e4c5 10.c2c3 d5d4 -C80,"Zukertort Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c6e7 -C80,"Richter Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.d4d5 -C80,"Friess Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.f3e5 -C80,"Riga Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 e5d4 -C80,"Knoore Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.b1c3 -C80,"Tartakower Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d1e2 -C80,"Skipworth Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.f1e1 d7d5 -C81,Keres; Estonian; Howell; Moscow Var,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 -C81,"Howell Attack, Ruy Lopez; C81",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.d1e2 -C81,"Adam Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.d1e2 f8e7 10.c2c4 -C81,"Ekstrom Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.d1e2 f8e7 10.f1d1 e8g8 11.c2c4 -C82,C82,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 -C82,"Italian Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 -C82,"St Petersburg Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 10.b1d2 -C82,"Dilworth; Kleczynski Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 10.b1d2 e8g8 11.b3c2 -C82,"Motzko Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 10.d1d3 -C82,"Nenarokov Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 10.d1d3 c6e7 -C82,"Berlin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 e4c5 -C83,"Malkin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 -C83,"Breslau Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8e7 10.f1e1 e8g8 11.f3d4 -C84,"Closed Defense, Ruy Lopez; C84",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 -C84,"Center Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d2d4 -C84,"Basque Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d2d4 e5d4 7.e4e5 f6e4 8.c2c3 -C84,"Lopez Four Knights, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.b1c3 -C85,Delayed Exchange Ruy Lopez Deferred; C85,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.a4c6 -C86,"Worrall Attack, Ruy Lopez; C86",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d1e2 -C86,"Schlechter Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d1e2 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 -C86,"English Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d1e2 b7b5 7.a4b3 e8g8 8.c2c3 d7d6 9.d2d4 c8g4 -C87,C87,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 -C87,"Averbakh Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 d7d6 -C87,"Kecskemet; Timbuktu Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 d7d6 7.c2c3 e8g8 8.d2d4 c8d7 9.b1d2 d7e8 -C87,"Romanovsky Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 d7d6 7.c2c3 e8g8 8.d2d4 c8d7 9.b1d2 e5d4 10.c3d4 c6b4 -C88,C88,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 -C88,"Trajkovic Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 c8b7 -C88,"Pseudo-Marshall Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 c8b7 8.c2c3 d7d5 9.e4d5 f6d5 10.f3e5 c6e5 -C88,"Rosen Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.d2d4 -C88,"Anti-Marshall Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.a2a4 -C89,C89,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 -C89,"Marshall Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 -C89,"Steiner Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 9.e4d5 e5e4 -C89,"Kevitz Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 9.e4d5 f6d5 10.f3e5 c6e5 11.e1e5 c7c6 12.b3d5 c6d5 13.d2d4 e7d6 14.e5e3 -C89,"Geller Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 9.e4d5 f6d5 10.f3e5 c6e5 11.e1e5 c7c6 12.d2d4 e7d6 13.e5e1 d8h4 14.g2g3 h4h3 -C89,"Fischer Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 9.e4d5 f6d5 10.f3e5 c6e5 11.e1e5 c7c6 12.g2g3 -C90,C90,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 -C90,"Balla Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 c6a5 9.b3c2 c7c5 10.d2d4 d8c7 -C90,"Suetin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.a2a3 -C90,"Lutikov Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.b3c2 -C90,"Pilnik Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.d2d3 -C90,"Suetin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d6 9.a2a3 -C90,"Leonhardt Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 c6a5 9.b3c2 c7c5 10.d2d4 d8c7 11.h2h3 a5c6 12.d4d5 c6d8 13.b1d2 g7g5 -C91,"Yates Variation, Ruy; C91",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.d2d4 -C91,"Bogoljubow; Counterthrust Var, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.d2d4 c8g4 -C92,C92,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 -C92,"Keres Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 a6a5 -C92,"Flohr; Zaitsev; Lenzerheide Var, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c8b7 -C92,"Kholmov Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c8e6 -C92,"Spanish Benoni, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 d8c7 12.d4d5 -C92,"Keres Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 f6d7 -C92,"Zaitsev System, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 f8e8 -C93,"Smyslov Variation, Ruy Lopez; C93",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 h7h6 -C94,"Breyer; Retreat Variation, Ruy Lopez; C94",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 -C95,C95,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 -C95,"Borisenko Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 b8d7 -C95,"Arseniev Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 b8d7 11.c3c4 -C95,"Romanishin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 b8d7 11.b1d2 c8b7 12.b3c2 f8e8 13.d2f1 e7f8 14.c1g5 -C95,"Simagin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 b8d7 11.f3h4 -C96,C96,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 -C96,"Borisenko Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 a5c6 -C96,"Keres Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 f6d7 -C97,"Classical Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 d8c7 12.b1d2 -C98,"Rauzer Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 d8c7 12.b1d2 a5c6 13.d4e5 d6e5 14.a2a4 -C99,C99,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 d8c7 12.b1d2 c5d4 -D00,Queen Pawn Game; Close Opening; D00,1.d2d4 d7d5 -D00,Sarratt Attack,1.d2d4 d7d5 2.c1f4 -D00,"Steinitz Countergambit, Queen Pawn Game",1.d2d4 d7d5 2.c1f4 c7c5 -D00,Morris Counter-Gambit,1.d2d4 d7d5 2.c1f4 c7c5 3.e2e4 d5e4 -D00,"Bishop Attack; Levitsky Attack, Queen Pawn Game",1.d2d4 d7d5 2.c1g5 -D00,Zot,1.d2d4 d7d5 2.c1g5 -D00,"Welling Variation, Queen Pawn Game",1.d2d4 d7d5 2.c1g5 c8g4 -D00,"Euwe Variation, Queen Pawn Game",1.d2d4 d7d5 2.c1g5 h7h6 3.g5h4 c7c6 4.g1f3 d8b6 -D00,"Stonewall Attack, Queen Pawn Game",1.d2d4 d7d5 2.e2e3 g8f6 3.f1d3 -D00,Stonewall Attack,1.d2d4 d7d5 2.e2e3 g8f6 3.f1d3 c7c5 4.c2c3 -D00,Blackmar-Diemer Gambit,1.d2d4 d7d5 2.e2e4 -D00,"Fritz Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.f1c4 -D00,"Diemer-Rosenberg Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.c1e3 -D00,"Pohlmann Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.f2f3 f7f5 -D00,"Mieses; Nimzovich Var, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.f2f3 b8c6 -D00,"Polish Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 -D00,"Grosshans Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c8d7 -D00,"Zeller Defesne, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c8f5 -D00,"Zeller Defesne, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c8f5 4.f2f3 e4f3 5.d1f3 f5c8 -D00,"Soller Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c8f5 4.f2f3 g8f6 5.f1c4 -D00,"Dries Counter-Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c7c5 -D00,"Lemberger Counter-Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 -D00,"Soller; Lemberger Var, BDG; Diemer Attack",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.c1e3 -D00,"Endgame Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.d4e5 -D00,"Rasmussen Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.g1e2 -D00,Lange Gambit; Alfred Lange Gambit; Simple Variation,1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.c3e4 -D00,"Sneiders Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.d1h5 -D00,"Rasa-Studier Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e6 4.c1e3 -D00,"Giertz-Peters Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e6 4.f2f3 -D00,"Netherlands Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 f7f5 -D00,"Vienna Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 -D00,"Studier-Rasa Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.c1e3 -D00,Von Popiel Gambit,1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.c1g5 -D00,"Zilbermints Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.c1g5 c8f5 5.g5f6 e7f6 6.g2g4 f5g6 7.d1e2 f8b4 8.e2b5 -D00,Blackmar-Diemer Gambit,1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 -D00,Hans Mullers; Vienna V,1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 -D00,"Soller; Vienna Var, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.f1c4 -D00,"Tejler Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.c1f4 -D00,"Sperling Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.d4d5 -D00,"Diemer Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.f3e4 -D00,"Kampars Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.g2g4 f5g6 6.g4g5 f6d5 7.f3e4 -D00,"Gunderam Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.g2g4 f5g6 6.h2h4 -D00,"Brombacher; Daberitz Var, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c7c5 -D00,"Langeheinecke Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4e3 -D00,"Elbert Counter-Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e7e5 -D00,"Weinsbach Declination, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e7e6 -D00,"Pfrang Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e7e6 5.f3e4 f8b4 6.f1d3 b4c3 7.b2c3 f6e4 8.c1e3 -D00,"Gunderam; Tartakower Var, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 c8f5 -D00,"Teichmann Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 c8g4 -D00,"Kaulich Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 c7c5 -D00,"Ziegler; Gunderam's 2nd Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 c7c6 -D00,"Duthilleuk Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 e7e6 6.f1d3 b8c6 7.c1g5 f8e7 8.c3e4 -D00,"Bogoljubow Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 -D00,"Mad Dog Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f1c4 f8g7 7.h2h4 -D00,"Nimzovich Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f1c4 f8g7 7.f3e5 -D00,"Kloss Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f1c4 f8g7 7.e1g1 e8g8 8.g1h1 -D00,"Studier Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f1c4 f8g7 7.e1g1 e8g8 8.d1e1 -D00,"Diemer Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.c1f4 -D00,"Peters Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f3e5 -D00,"Gunderam Defense, BDG; Rook Pawn Defense",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 h7h5 -D00,"Schuttler Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 b8d7 -D00,"Pietrowsky Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 b8c6 -D00,"Ryder Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.d1f3 -D00,"Tautvaisis Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.d1f3 b8c6 -D00,"Tejler Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.d1f3 d8d4 6.c1e3 d4g4 7.f3f2 f6e4 8.c3e4 g4e4 9.e1c1 b8c6 10.f1d3 -D00,"Albrecht; Karlshruhle Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 g7g6 -D00,"Lamb Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 b8c6 -D00,"Mason Attack, Queen Pawn Game",1.d2d4 d7d5 2.f2f4 -D00,Zurich Gambit,1.d2d4 d7d5 2.g2g4 -D00,Chigorin; Ponziani; Veresov,1.d2d4 d7d5 2.b1c3 -D00,"Alburt Defense, QP",1.d2d4 d7d5 2.b1c3 c8f5 -D00,Anti-Veresov,1.d2d4 d7d5 2.b1c3 c8g4 -D00,"Irish Gambit, QP",1.d2d4 d7d5 2.b1c3 c7c5 -D00,"Shaviliuk Gambit, QP",1.d2d4 d7d5 2.b1c3 e7e5 -D00,"Dutch System, QP",1.d2d4 d7d5 2.b1c3 f7f5 -D00,"Fianchetto Defense, QP",1.d2d4 d7d5 2.b1c3 g7g6 3.g1f3 f8g7 -D00,Hubsch Gambit,1.d2d4 d7d5 2.b1c3 g8f6 3.e2e4 f6e4 -D00,Amazon Attack,1.d2d4 d7d5 2.d1d3 -D00,Siberian Attack,1.d2d4 d7d5 2.d1d3 b8c6 3.b1c3 -D01,Betbeder; Veresov; Levitzky; Parisian,1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 f7f5 -D01,Richter-Veresov Opening; D01,1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 -D01,"Veresov Variation, QP",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 c8f5 4.g5f6 -D01,"Richter Variation, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 c8f5 4.f2f3 -D01,"Classical Defense, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 e7e6 4.g1f3 -D01,"Two Knights System, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 b8d7 4.g1f3 -D01,"Grunfeld Defense, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 b8d7 4.g1f3 g7g6 -D01,"Boyce Defense, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 f6e4 -D02,"Zukertort Variation, QP; D02",1.d2d4 d7d5 2.g1f3 -D02,"Anti-Torre, QP",1.d2d4 d7d5 2.g1f3 c8g4 -D02,Anti-Torre,1.d2d4 d7d5 2.g1f3 c8g4 3.f3e5 g4f5 4.g2g4 -D02,Queen's Gambit Reversed; Krause Variation,1.d2d4 d7d5 2.g1f3 c7c5 -D02,"Chandler Gambit, QP",1.d2d4 d7d5 2.g1f3 c7c5 3.g2g3 c5d4 4.f1g2 -D02,"Chigorin Variation, QP",1.d2d4 d7d5 2.g1f3 b8c6 -D02,"Symmetrical Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 -D02,London System; Queen's Bishop Opening,1.d2d4 d7d5 2.g1f3 g8f6 3.c1f4 -D02,"Poisoned Pawn Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c1f4 c7c5 4.e2e3 d8b6 5.b1c3 -D02,"Zilbermints Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c2c4 b7b5 -D02,Pseudo-Catalan,1.d2d4 d7d5 2.g1f3 g8f6 3.g2g3 -D02,Barry Attack,1.d2d4 g8f6 2.g1f3 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.f1e2 -D03,"Torre Attack, QP; D03",1.d2d4 d7d5 2.g1f3 g8f6 3.c1g5 -D03,"Breyer Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c1g5 e7e6 4.e2e3 c7c5 5.c2c3 d8b6 -D03,"Grunfeld Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c1g5 g7g6 -D03,"Gossip Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c1g5 f6e4 -D04,Colle System; D04,1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 -D04,"Bishop Defense, QP; Anti-Colle",1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 c8f5 -D05,"Classical Defense, Colle System; D05",1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 e7e6 -D05,"Zukertort Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 e7e6 4.f1d3 -D05,"Rubinstein Attack, Colle",1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 e7e6 4.f1d3 c7c5 5.b2b3 -D06,Queen's Gambit; Aleppo Gambit; D06,1.d2d4 d7d5 2.c2c4 -D06,"Zilbermints Gambit, QGD",1.d2d4 d7d5 2.c2c4 b7b5 -D06,"Brieger Defense; Sahovic Defense, QGD; Baltic Defense",1.d2d4 d7d5 2.c2c4 c8f5 -D06,"Pseudo-Slav, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.b1c3 e7e6 4.g1f3 c7c6 -D06,"Pseudo-Chigorin, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.b1c3 e7e6 4.g1f3 b8c6 -D06,"Queen Attack, Baltic Defens, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.b1c3 e7e6 4.d1b3 -D06,"Austrian Defense; Summetrical Defense, QGD",1.d2d4 d7d5 2.c2c4 c7c5 -D06,"Gusev Countergambit, QGD",1.d2d4 d7d5 2.c2c4 c7c5 3.c4d5 g8f6 -D06,"Haberditz Variation, QGD",1.d2d4 d7d5 2.c2c4 c7c5 3.c4d5 g8f6 4.e2e4 f6e4 5.d4c5 d8a5 -D06,"Salvio Countergambit, QGD",1.d2d4 d7d5 2.c2c4 c7c5 3.d4c5 d5d4 -D06,"Tartakower Gambit, QGD",1.d2d4 d7d5 2.c2c4 b8c6 3.b1c3 e7e5 -D06,"Modern Gambit, Chigorin Defense",1.d2d4 d7d5 2.c2c4 b8c6 3.b1c3 g8f6 4.g1f3 d5c4 -D06,"Alekhine Variation, Chigorin Defense",1.d2d4 d7d5 2.c2c4 b8c6 3.g1f3 c8g4 4.d1a4 -D06,"Lazard Gambit, Chigorin Defense",1.d2d4 d7d5 2.c2c4 b8c6 3.g1f3 e7e5 -D06,"Cocquio Counter Gambit, QGD; Tan Gambit",1.d2d4 d7d5 2.c2c4 g8f6 3.c4d5 c7c6 -D07,"Chigorin Defense, QGD; D07",1.d2d4 d7d5 2.c2c4 b8c6 -D07,"Exchange Variation, Chigorin Defense",1.d2d4 d7d5 2.c2c4 b8c6 3.c4d5 d8d5 -D07,Costa's Line,1.d2d4 d7d5 2.c2c4 b8c6 3.c4d5 d8d5 4.e2e3 e7e5 5.b1c3 f8b4 6.c1d2 b4c3 7.d2c3 e5d4 8.g1e2 -D07,"Janowski Variation, QGD",1.d2d4 d7d5 2.c2c4 b8c6 3.b1c3 d5c4 4.g1f3 -D08,"Albin Countergambit; Cavalotti Var, QGD; D08",1.d2d4 d7d5 2.c2c4 e7e5 -D08,"Lasker Trap, QGD",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.e2e3 f8b4 5.c1d2 d4e3 -D08,"Normal Line, Albin Countergambit, QGD",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.g1f3 -D08,"Tartakower Defense, QGD",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.g1f3 c7c5 -D08,"Alapin Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.g1f3 b8c6 5.b1d2 -D09,"Fianchetto Variation, Albin Countergambit; D09",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.g1f3 b8c6 5.g2g3 -D10,"Slav Defense; Czech Defense, QGD; D10",1.d2d4 d7d5 2.c2c4 c7c6 -D10,"Exchange Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.c4d5 -D10,Slav Pawn Game,1.d2d4 d7d5 2.c2c4 c7c6 3.e2e3 -D10,"Diemer Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.e2e4 -D10,"Alekhine Attack, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.b1c3 d5c4 4.e2e4 -D10,"Winawer Counter Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.b1c3 e7e5 -D10,"Anti-Winawer Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.b1c3 e7e5 4.e2e4 -D11,"Modern Line, Slav; D11",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 -D11,Slav Bishop's Game,1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 c8f5 -D11,"Bonet Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.c1g5 -D11,"Quiet Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 -D11,"Breyer Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1d2 -D12,"Schallopp Defense, Slav; D12",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 c8f5 -D12,"Amsterdam Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 c8f5 5.c4d5 c6d5 6.b1c3 -D12,"Landau Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 c8f5 5.c4d5 c6d5 6.d1b3 d8c8 7.c1d2 e7e6 8.b1a3 -D12,"Pin Defense, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 c8g4 -D13,"Exchange Variation, Slav; D13",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.c4d5 -D14,"Symmetrical Line, Slav; D14",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.c4d5 c6d5 5.b1c3 b8c6 6.c1f4 c8f5 -D14,"Trifunovic Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.c4d5 c6d5 5.b1c3 b8c6 6.c1f4 c8f5 7.e2e3 e7e6 8.d1b3 f8b4 -D15,"Three Knights Variation, Slav; D15",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 -D15,"Chameleon Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 a7a6 -D15,"Advance System, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 c6c5 -D15,"Two Knights Attack, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 -D15,"Alekhine Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.e2e3 -D15,"Alekhine Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.e2e3 b7b5 6.a2a4 b5b4 -D15,"Geller Variation; Geller-Tolush Var, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.e2e4 -D15,"Schlechter Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 g7g6 -D15,"Suchting Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d8b6 -D16,"Alapin Variation, Slav; D16",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 -D16,"Steiner Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8g4 -D16,"Soultanbeieff Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 e7e6 -D16,"Smyslov Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 b8a6 -D17,Czech Defense; Open Slav Defense; D17,1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 -D17,"Krause Attack, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 -D17,"Wiesbaden Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 e7e6 -D17,"Sharp Line, Wiesbaden Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 e7e6 7.f2f3 f8b4 8.e2e4 -D17,"Fazekas Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 b8a6 7.e2e4 -D17,"Carlsbad Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 b8d7 7.e5c4 d8c7 8.g2g3 e7e5 -D17,"Baarn Variation, Slav; Bled Attack",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3h4 -D18,"Dutch Variation, Slav; D18",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.e2e3 -D18,"Mareschall Variation, Slav; Lasker Variation",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.e2e3 b8a6 -D19,"Main Line, Czech Variation, Slav; D19",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.e2e3 e7e6 7.f1c4 f8b4 8.e1g1 e8g8 9.d1e2 -D20,"Old Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e3 -D20,"Saduleto Variation, QGA; Central Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 -D20,"Greco Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 b7b5 -D20,"Rubinstein Variation, QGA��",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 c7c5 -D20,"Yefimov Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 c7c5 4.d4d5 b7b5 -D20,"Linares Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 c7c5 4.d4d5 g8f6 5.b1c3 b7b5 -D20,"McDonnell Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 e7e5 -D20,"Somov Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 e7e5 4.f1c4 -D20,"Versov; Betbeder; Schwartz Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 f7f5 -D20,"Modern Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 b8c6 -D20,"Alekhine System, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 g8f6 -D21,"Blackburne's Move, QGA; Normal Variation, QGA; D21",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 -D21,"Alekhine Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 -D21,"Slav Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 b7b5 -D21,"Gunsberg Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 c7c5 -D21,"Prianishenmo Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 c7c5 4.d4d5 g8f6 5.b1c3 e7e6 6.e2e4 e6d5 7.e4e5 -D21,"Rosenthal Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 e7e6 -D21,"Godes Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 b8d7 -D22,D22,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 4.e2e3 -D22,"Haberditz Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 4.e2e3 b7b5 -D22,"Alekhine Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 4.e2e3 c8g4 -D22,"Borisenko-Furman Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 4.e2e4 -D23,D23,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 -D23,"Mannheim Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.d1a4 -D24,"Showalter Variation, QGA; D24",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.b1c3 -D24,"Bogoljubow Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.b1c3 a7a6 5.e2e4 -D25,D25,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 -D25,"Flohr; Winawer Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 c8e6 -D25,"Larsen; Janowski; Modern Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 c8g4 -D25,"Smyslov Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 g7g6 -D25,Queen's Gambit Accepted Deferred,1.d2d4 d7d5 2.g1f3 g8f6 3.c2c4 d5c4 -D26,Traditional System QGA; D26,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 -D26,"Classical Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 -D26,"Steinitz Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 c5d4 -D26,"Development Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 b8c6 -D27,"Rubinstein Variation, QGA; D27",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 -D27,"Furman Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d4c5 f8c5 -D27,"Russian Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.e3e4 -D28,"Alekhine System, Classical Defense, QGA; D28",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 -D28,"Accelerated Fianchetto, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b7b5 -D28,"Counter Fianchetto Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b8c6 8.d4c5 -D28,"Four Knights Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b8c6 8.b1c3 -D29,D29,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b7b5 8.c4b3 c8b7 -D29,"Smyslov Variation, Classical Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b7b5 8.c4b3 c8b7 9.f1d1 b8d7 10.b1c3 f8d6 -D30,D30,1.d2d4 d7d5 2.c2c4 e7e6 -D30,"Pseudo-Tarrasch, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 c7c5 -D30,"Bishop Attack, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 c7c5 4.c4d5 e6d5 5.c1g5 -D30,"Anti-Noteboom Gambit, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 c7c6 4.b1c3 d5c4 5.g2g3 -D30,"Traditional Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 -D30,"Vienna Variation, QGD��",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 f8b4 -D30,"Duras Variation, QGD; Capablanca Variation",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 h7h6 -D30,"Hastings Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 h7h6 5.g5f6 d8f6 6.b1c3 c7c6 7.d1b3 -D30,"Capablanca Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.b1d2 -D30,"Pseudo-Meran; Semi-Slav, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.e2e3 c7c6 -D30,"Quiet Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.e2e3 c7c6 5.b1d2 -D30,"Semmering Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.e2e3 c7c6 5.b1d2 b8d7 6.f1d3 c6c5 -D31,"Baltic Defense, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.c4d5 f5b1 4.d1a4 c7c6 5.d5c6 b8c6 -D31,"Argentinian Gambit, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.c4d5 f5b1 4.d1a4 c7c6 5.d5c6 b8c6 6.a1b1 d8d4 -D31,"Queen's Knight Variation, QGD; D31",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 -D31,"Janowski Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 a7a6 -D31,"Alapin Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 b7b6 -D31,"Alatortsev; Petrosian, Charousek Var, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 f8e7 -D31,"Miladinovic Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 f8e7 4.e2e4 d5e4 5.f2f3 -D31,"Portisch Gambit, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.e2e3 f7f5 5.g2g4 -D31,"Gunderam Gambit, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.e2e4 d5e4 5.f2f3 -D31,"Noteboom Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.g1f3 d5c4 -D31,"Abrahams; Noteboom; Klaus Junge Var, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.g1f3 d5c4 5.a2a4 f8b4 6.e2e3 b7b5 7.c1d2 a7a5 -D31,"Anti-Noteboom Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.g1f3 d5c4 5.c1g5 -D31,"Beliavsky Line, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.g1f3 d5c4 5.c1g5 f7f6 -D32,"Tarrasch Defense, QGD; D32",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 -D32,"Schara-Hennig; Duisburg Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 c5d4 -D32,"Von Hennig Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 c5d4 5.d1d4 b8c6 6.d4d1 e6d5 7.d1d5 c8e6 -D32,"Tarrasch Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.d4c5 d5d4 6.c3a4 b7b5 -D32,"Marshall Gambit, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.e2e4 -D32,"Two Knights Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 -D32,"Grunfeld Gambit, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.d4c5 d5d4 7.c3a4 b7b5 -D32,"Symmetrical Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.e2e3 g8f6 5.g1f3 b8c6 -D33,"Lodz; Schlecter; Rubinstein Var, QGD; D33",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 -D33,"Folkestone; Swedish Var, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 c5c4 -D33,"Prague Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 -D33,"Wagner Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 c8g4 -D34,D34,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 -D34,"Rubinstein; Normal Position, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 -D34,"Carlsbad Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 -D34,"Endgame Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 c8e6 -D34,"Bogoljubow Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 c8e6 10.a1c1 c5c4 -D34,"Advance Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 c5c4 -D34,"Spassky Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 c5d4 10.f3d4 -D34,"Reti Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.d4c5 e7c5 10.c3a4 -D34,Classical Tarrasch Gambit,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.d4c5 d5d4 -D35,D35,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 -D35,"Harrwitz; Rubinstein Var, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1f4 -D35,"Exchange Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c4d5 -D35,"Positional Variation, Exchange Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c4d5 e6d5 5.c1g5 -D35,"Saemisch Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c4d5 e6d5 5.g1f3 b8d7 6.c1f4 -D36,"Reshevsky Variation, QGD; D36",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c4d5 e6d5 5.c1g5 c7c6 6.d1c2 -D37,"Three Knights Variation, QGD; D37",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 -D37,"Harrwitz Attack, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 f8e7 5.c1f4 -D38,"Ragozin Variation, QGD; D38",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 f8b4 -D38,"Alekhine Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 f8b4 5.d1a4 -D39,"Vienna Variation, QGD; D39",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 f8b4 5.c1g5 d5c4 -D40,"Semi-Tarrasch Variation, QGD; D40",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c5 -D40,"Pillsbury Variation, Semi-Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c5 5.c1g5 -D41,"San Sebastian Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c5 5.c4d5 f6d5 6.e2e4 d5c3 7.b2c3 c5d4 8.c3d4 f8b4 9.c1d2 b4d2 -D42,D42,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c5 5.c4d5 f6d5 6.e2e3 b8c6 7.f1d3 -D43,D43,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 -D43,"Anti-Meran Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 -D44,Semi-Slav Defense Accepted; D44,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 -D44,"Botvinnik Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 6.e2e4 b7b5 -D44,"Ekstrom Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 6.e2e4 b7b5 7.e4e5 h7h6 8.g5h4 g7g5 9.e5f6 g5h4 10.f3e5 -D44,"Lilienthal Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 6.e2e4 b7b5 7.e4e5 h7h6 8.g5h4 g7g5 9.f3g5 h6g5 10.h4g5 b8d7 -D44,"Alatortsev System, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 6.e2e4 b7b5 7.e4e5 h7h6 8.g5h4 g7g5 9.f3g5 f6d5 -D44,Anti-Moscow Gambit,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 h7h6 6.g5h4 -D44,"Stonewall Defense, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 f6e4 6.f1d3 f7f5 -D44,"Vienna Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 d5c4 -D45,D45,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 -D45,"Acclerated Meran, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 a7a6 -D45,"Normal Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 -D45,Rubinstein; anti-Meran,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f3e5 -D45,"Stoltz Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.d1c2 -D45,"Center Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.d1c2 f8d6 7.e3e4 -D45,"Mikhalchishin Line, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.d1c2 f8d6 7.e3e4 d5e4 8.c3e4 f6e4 9.c2e4 e6e5 10.d4e5 -D45,"Shabalov Attack, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.d1c2 f8d6 7.g2g4 -D46,D46,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 -D46,"Romi Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 f8b4 -D46,"Chigorin Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 f8d6 -D46,"Bogoljubow Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 f8e7 -D47,"Meran Variation, QGD; D47",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 -D47,Lundin; Neo-Meran,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 b5b4 -D47,"Wade Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 c8b7 -D47,"Larsen Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 c8b7 9.e3e4 b5b4 10.c3a4 c6c5 -D48,"Reynolds Variation, QGD; D48",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 -D48,"Pirc Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 b5b4 -D48,"Old Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 c6c5 10.e4e5 -D48,"Old Meran Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e1g1 -D49,"Blumenfeld Variation, QGD; D49",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 c6c5 10.e4e5 c5d4 11.c3b5 -D49,"Sozin Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 c6c5 10.e4e5 c5d4 11.c3b5 d7e5 -D49,"Stahlberg Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 c6c5 10.e4e5 c5d4 11.c3b5 d7e5 12.f3e5 a6b5 -D50,"Modern Variation, QGD; D50",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 -D50,"Uhlmann Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.g1f3 h7h6 6.g5h4 e8g8 7.a1c1 d5c4 -D50,Been & Koomen; Dutch & Peruvian,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 c7c5 -D50,"Canal; Venice Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 c7c5 5.c4d5 d8b6 -D50,"Primitive Pillsbury Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 c7c5 5.g1f3 c5d4 6.d1d4 -D51,"Knight Defense, QGD; D51",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 -D51,"Manhattan; Westphalia Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 f8b4 -D51,"Westphalian Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 f8b4 6.g1f3 c7c5 -D51,"Alekhine Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.g1f3 c7c6 6.e2e4 -D51,"Alekhine Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.g1f3 h7h6 6.g5h4 d5c4 -D52,D52,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.g1f3 -D52,"Cambridge Springs; Pillsbury Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.g1f3 d8a5 -D52,"Bogoljubov Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.g1f3 d8a5 7.f3d2 f8b4 8.d1c2 -D52,"Argentine Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.g1f3 d8a5 7.f3d2 f8b4 8.d1c2 e8g8 9.g5h4 -D53,D53,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 -D53,"Heral Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.g5f6 -D53,"Lasker Defense, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 f6e4 -D54,"Neo-Orthodox Variation, QGD; D54",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.a1c1 -D55,D55,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 -D55,"Pillsbury Attack, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b7b6 7.f1d3 c8b7 8.c4d5 e6d5 9.f3e5 -D55,"Neo Orthodox Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 -D55,"Anti-Tartakower Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5f6 -D55,"Petrosian Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5f6 e7f6 8.a1c1 c7c6 9.f1d3 b8d7 10.e1g1 d5c4 -D56,D56,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 -D56,"Lasker Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 f6e4 8.h4e7 d8e7 -D56,"Teichmann Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 f6e4 8.h4e7 d8e7 9.d1c2 -D57,D57,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 f6e4 8.h4e7 d8e7 9.c4d5 -D57,"Bernstein Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 f6e4 8.h4e7 d8e7 9.c4d5 e4c3 10.b2c3 -D58,"Tartakower Variation, QGD; D58",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 b7b6 -D59,"Exchange Variation, Tartakower Defense, QGD; D59",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 b7b6 8.c4d5 f6d5 -D60,"Orthodox Variation, QGD; D60",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 -D60,"Botvinnik Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.f1d3 -D60,"Rauzer Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.d1b3 -D61,"Rubinstein Variation, Orthodox Defense, QGD; D61",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.d1c2 -D62,D62,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.d1c2 c7c5 8.c4d5 -D63,D63,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 -D63,"Henneberger; Swiss Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 a7a6 -D63,"Capablanca Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 b7b6 8.c4d5 e6d5 9.f1b5 -D63,"Pillsbury Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 b7b6 8.c4d5 e6d5 9.f1d3 -D63,"Rubinstein Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 -D64,"Janowski Variation, Orthodox Defense, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 10.h2h4 -D64,"Rubinstein Attack, Orthodox Defense, QGD;� D64",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.d1c2 -D65,D65,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.d1c2 a7a6 9.c4d5 -D66,D66,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 -D66,"Fianchetto Variation, Orthodox Defense, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 b7b5 -D67,"Capablanca Freeing Maneuver, QGD; D67",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 -D67,"Classical Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 10.g5e7 d8e7 11.e1g1 d5c3 12.c1c3 -D68,D68,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 10.g5e7 d8e7 11.e1g1 d5c3 12.c1c3 e6e5 -D69,D69,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 10.g5e7 d8e7 11.e1g1 d5c3 12.c1c3 e6e5 13.d4e5 -D70,King's Indian Defense; West Indian Defense; D70,1.d2d4 g8f6 2.c2c4 g7g6 -D70,Danube Gambit; Adorjan Gambit,1.d2d4 g8f6 2.c2c4 g7g6 3.d4d5 b7b5 -D70,Danube; Donau Gambit,1.d2d4 g8f6 2.c2c4 g7g6 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c7c6 -D70,Nimzovich Attack; Anti-Grunfeld; Alekhine Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.f2f3 -D70,Goglidze Attack,1.d2d4 g8f6 2.c2c4 g7g6 3.f2f3 d7d5 -D70,Leko Gambit,1.d2d4 g8f6 2.c2c4 g7g6 3.f2f3 e7e5 -D70,Kemeri; Neo-Grunfeld�,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 -D70,"Lutikov Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.f2f3 -D70,"Murey Attack, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.f2f3 c7c5 5.c4d5 f6d5 6.c3a4 -D70,Neo-Grunfeld Defense,1.d2d4 g8f6 2.c2c4 g7g6 3.g1f3 d7d5 -D70,Iago Defense,1.d2d4 g8f6 2.c2c4 b8c6 -D71,Counterthrust Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 -D71,"Exchange Variation, Neo-Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.c4d5 f6d5 -D71,D71,1.d2d4 g8f6 2.c2c4 b8c6 3.g2g3 d7d5 -D72,D72,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.c4d5 f6d5 6.e2e4 d5b6 -D73,D73,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 -D74,"Delayed Exchange Variation, Neo-Grunfeld; D74",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.c4d5 f6d5 7.e1g1 -D75,D75,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.c4d5 f6d5 7.e1g1 c7c5 -D76,D76,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.c4d5 f6d5 7.e1g1 d5b6 -D77,"Classical Variation, Neo-Grunfeld; D77",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 -D78,"Original Defesne, Neo-Grunfeld; D78",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 c7c6 -D78,"Modern Defense, Neo-Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 d5c4 -D78,"Polgar Variation, Neo-Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 b8c6 -D79,D79,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 c7c6 7.c4d5 -D79,"Ultra-delayed Exchange Variation, Neo-Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 c7c6 7.c4d5 c6d5 -D80,Grunfeld Defense; D80,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 -D80,"Stockholm Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1g5 -D80,"Makogonov Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.b2b4 -D80,"Opocensky Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.c1d2 -D80,"Paris Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.f1d3 -D80,"Schlechter Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.f1d3 c7c6 -D80,"Flohr Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.f1d3 c7c6 7.e1g1 c8f5 -D80,"Smyslov Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.f1d3 c7c6 7.e1g1 c8g4 -D80,"Vienna Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.d1b3 -D80,"Pachman Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.d1b3 d5c4 7.f1c4 b8d7 8.f3g5 -D80,"Botvinnik Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.d1b3 e7e6 -D80,"Schlechter Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 c7c6 -D80,"Kemeri Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g2g3 -D80,Gibbon Gambit; Grunfeld Spike,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g2g4 -D80,"Zaitsev Gambit, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.h2h4 -D81,"Accelerated Russian Variation, Grunfeld; D81",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.d1b3 -D83,Grunfeld Gambit; D83,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 -D83,"Capablanca Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.a1c1 -D83,"Botvinnik Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.a1c1 c7c5 7.d4c5 c8e6 -D83,"Reshevsky Gambit, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.a1c1 c7c5 7.d4c5 d8a5 -D84,D84,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.c4d5 f6d5 -D85,"Exchange Variation, Grunfeld; D85",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 -D85,"Exchange Variation, Grunfeld;",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 -D85,"Modern Main Line, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.g1f3 -D85,"Kramnik's Line, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.g1f3 c7c5 8.h2h3 -D85,"Kemeri Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.g2g3 -D85,Nadanian Attack,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.c3a4 -D86,"Classical Main Line, Grunfeld; D86",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 -D86,"Simagin Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 b7b6 9.h2h4 c8a6 -D86,"Simagin Improved Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 b8c6 -D86,"Larsen Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 d8d7 -D86,"Larsen Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 d8d7 9.e1g1 b7b6 -D87,"Spassky Variation, Grunfeld; D87",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 -D87,"Seville Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 9.e1g1 b8c6 10.c1e3 -D88,D88,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 9.e1g1 b8c6 10.c1e3 c5d4 -D89,D89,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 9.e1g1 b8c6 10.c1e3 c5d4 11.c3d4 c8g4 12.f2f3 c6a5 13.c4d3 -D89,"Sokolsky Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 9.e1g1 b8c6 10.c1e3 c5d4 11.c3d4 c8g4 12.f2f3 c6a5 13.c4d3 g4e6 14.d4d5 -D90,"Three Knights Variation, Grunfeld; D90",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 -D90,"Flohr Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1a4 -D91,"Petrosian System, Grunfeld; D91",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.c1g5 -D93,D93,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.c1f4 e8g8 6.e2e3 -D94,"Burille Variation, Grunfeld; D94",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.e2e3 -D94,"Makogonov Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.e2e3 e8g8 6.b2b4 -D94,"Opocensky Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.e2e3 e8g8 6.c1d2 -D95,D95,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.e2e3 e8g8 6.d1b3 -D96,"Russian Variation, Grunfeld; D96",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 -D97,D97,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 -D97,"Hungarian Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 a7a6 -D97,"Levenfish Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 b7b6 -D97,"Szabo (Boleslavsky) Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 c7c6 -D97,"Prins Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 b8a6 -D97,"Simagin (Byrne) Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 b8c6 -D98,"Smyslov Variation, Grunfeld; D98",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 c8g4 -D99,D99,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 c8g4 8.c1e3 f6d7 9.c4b3 -D99,"Yugoslav Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 c8g4 8.c1e3 f6d7 9.c4b3 c7c5 -E00,East Indian Defense; E00,1.d2d4 g8f6 2.c2c4 e7e6 -E00,Seirawan Attack,1.d2d4 g8f6 2.c2c4 e7e6 3.c1g5 -E00,Catalan Opening,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 -E00,"Hungarian Gambit, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 e6e5 -E00,"Devin Gambit, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g4 -E01,E01,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 -E02,E02,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 -E03,E03,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.d1a4 b8d7 6.a4c4 -E03,"Alekhine Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.d1a4 b8d7 6.a4c4 a7a6 7.c4c2 -E04,"Open Defense, Catalan; E04",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.g1f3 -E05,"Classical Line, Catalan; E05",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.g1f3 f8e7 -E05,"Modern Sharp Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.g1f3 b8c6 6.d1a4 f8b4 -E06,"Closed Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 -E06,E06,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 -E06,"Tarrasch Defense, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 c7c5 5.g1f3 b8c6 -E07,E07,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 -E07,"Botvinnik Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 7.b1c3 c7c6 8.d1d3 -E08,E08,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 7.d1c2 -E08,"Zagoriansky Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 7.d1c2 c7c6 8.f1d1 b7b6 9.a2a4 -E09,E09,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 7.d1c2 c7c6 8.b1d2 -E10,Anti-Nimzo-Indian; E10,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 -E10,Dzindzi-Indian Defense,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 a7a6 -E10,Blumenfeld Variation,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 -E10,Blumenfeld Countergambit,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 -E10,Dus-Chotimursky Variation,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 5.c1g5 -E10,"Spielmann Variation, Blumenfeld",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 5.c1g5 e6d5 6.c4d5 h7h6 -E10,Blumenfeld Countergambit Accepted,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 5.d5e6 f7e6 6.c4b5 d7d5 -E10,"Rubinstein Variation, Blumenfeld",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 5.e2e4 -E10,Dory (Doery) Defense,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 f6e4 -E11,Bogoljubow Defense; Bogo-Indian Defense; E11,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 f8b4 -E11,"Nimzovich Variation, Bogo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 f8b4 4.c1d2 d8e7 -E11,"Grunfeld Variation, Bogo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 f8b4 4.b1d2 -E12,Queen's Indian Defense; E12,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 -E12,"Petrosian Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.a2a3 -E12,"Farago Defense, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.a2a3 c8a6 5.d1c2 a6b7 -E12,"Murey Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.a2a3 c8b7 5.b1c3 d7d5 6.c4d5 f6d5 7.d1c2 c7c5 8.e2e4 d5c3 9.b2c3 b8c6 10.c1b2 c5d4 11.c3d4 a8c8 12.a1d1 f8d6 -E12,"Miles Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.c1f4 -E12,"Kasparov Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 -E12,"Kasparov-Petrosian Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.a2a3 -E12,"Polovodin Gambit, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.a2a3 d7d5 6.c4d5 f6d5 7.e2e4 -E12,"Hedgehog Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.a2a3 g7g6 -E12,"Botvinnik Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.c1g5 h7h6 6.g5h4 g7g5 7.h4g3 f6h5 -E13,E13,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.c1g5 h7h6 6.g5h4 f8b4 -E14,"Spassky System, QID; E14",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.e2e3 -E14,"Averbakh Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.e2e3 c8b7 5.f1d3 c7c5 6.e1g1 f8e7 7.b2b3 e8g8 8.c1b2 c5d4 9.f3d4 -E15,"Fianchetto System, QID; E15",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 -E15,"Nimzovich Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8a6 -E15,"Quiet Line, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8a6 5.b2b3 -E15,"Nimzovich Attack, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8a6 5.d1a4 -E15,"Timman's Line, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8a6 5.d1b3 -E15,"Saemisch Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 c7c5 -E16,"Fianchetto Traditional, QID; E16",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 -E16,"Capablanca Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8b4 -E16,"Yates Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8b4 6.c1d2 a7a5 -E16,"Riumin Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8b4 6.c1d2 b4e7 -E16,"Buerger Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 c7c5 6.d4d5 e6d5 7.f3g5 -E16,"Rubinstein Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 c7c5 6.d4d5 e6d5 7.f3h4 -E16,"Fine Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 d8c8 6.e1g1 c7c5 7.d4d5 -E17,"Traditional Variation, QID; E17",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 -E17,Anti-Queen's Indian System,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.b1c3 -E17,"Opocensky Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.b1c3 f6e4 7.c1d2 -E17,"Classical Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 -E17,"Euwe Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.b2b3 -E17,"Taimanov Gambit, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.d4d5 e6d5 8.f3d4 -E17,"Polugaevsky Gambit, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.d4d5 e6d5 8.f3h4 -E17,"Kramnik Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.f1e1 -E18,E18,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.b1c3 -E18,"Tiviakov Defense, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.b1c3 b8a6 -E19,E19,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.b1c3 f6e4 8.d1c2 -E20,E20,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 -E20,Nimzo-Indian Defense,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 -E20,"Kmoch Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.f2f3 -E20,"Steiner Variation, Nimzo-Indian; Romanishin Variation",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g2g3 -E20,"Romanishin Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.g2g3 e8g8 6.f1g2 -E20,"English Hybrid, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.g2g3 e8g8 6.f1g2 c5d4 7.f3d4 d7d5 8.c4d5 f6d5 -E20,"Ragozin Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 d7d5 -E21,"Three Knights Variation, Nimzo-Indian; E21",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 -E21,"Korchnoi Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.d4d5 -E21,"Shocron Gambit, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.d4d5 b7b5 -E21,"Euwe Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.d4d5 f6e4 -E22,"Spielmann Variation, Nimzo-Indian; E22",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 -E23,"Romanovsky Gambit, Nimzo-Indian; E23",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 -E23,"San Remo Variation, Nimzo-Indian; Stahlberg Variation",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 6.g1f3 f6e4 7.c1d2 e4c5 -E23,"Stahlberg Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 6.g1f3 f6e4 7.c1d2 e4c5 8.b3c2 f7f5 9.g2g3 -E23,"Carlsbad Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 6.g1f3 f6e4 7.c1d2 e4d2 -E23,"Stahlberg Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 6.g1f3 f6e4 7.c1d2 e4d2 8.f3d2 e8g8 9.e1c1 -E24,"Saemisch Variation, Nimzo-Indian; E24",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 -E24,"Accelerated Saemisch Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 -E24,"Botvinnik Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.f2f3 d7d5 7.e2e3 e8g8 8.c4d5 f6d5 -E25,E25,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.f2f3 d7d5 7.c4d5 -E25,"Keres Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.f2f3 d7d5 7.c4d5 f6d5 8.d4c5 -E25,"Romanovsky Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.f2f3 d7d5 7.c4d5 f6d5 8.d4c5 f7f5 -E26,"Saemisch Variation, Nimzo-Indian; E26",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.e2e3 -E26,"O'Kelly Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.e2e3 b7b6 -E26,"Capablanca Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.e2e3 b8c6 7.f1d3 e8g8 8.g1e2 b7b6 9.e3e4 f6e8 -E27,E27,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 e8g8 -E28,E28,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 e8g8 6.e2e3 -E29,E29,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 e8g8 6.e2e3 c7c5 7.f1d3 b8c6 -E29,"Capablanca Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 e8g8 6.e2e3 c7c5 7.f1d3 b8c6 8.g1e2 b7b6 9.e3e4 f6e8 -E30,"Leningrad Variation, Nimzo-Indian; E30",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.c1g5 -E30,"Averbakh Gambit, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.c1g5 h7h6 5.g5h4 c7c5 6.d4d5 b7b5 -E31,"Benoni Defense, Nimzo-Indian; E31",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.c1g5 h7h6 5.g5h4 c7c5 6.d4d5 d7d6 -E32,"Classical Variation, Nimzo-Indian; E32",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 -E33,"Milner-Barry, Zurich Variation, Nimzo-Indian; E33",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 b8c6 -E33,"Milner-Barry Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 b8c6 5.g1f3 d7d6 -E33,"Old Zurich Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 b8c6 5.g1f3 d7d6 6.a2a3 -E33,"Vitolinsh-Adorjan Gambit, Nimzo Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 e8g8 5.a2a3 b4c3 6.c2c3 b7b5 -E33,"Keres Defense, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 e8g8 5.a2a3 b4c3 6.c2c3 b7b6 -E34,"Noa Variation, Nimzo-Indian; E34",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 -E35,E35,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.c4d5 e6d5 -E36,E36,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.a2a3 -E36,"Botvinnik Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.a2a3 b4c3 6.c2c3 b8c6 -E37,E37,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.a2a3 b4c3 6.c2c3 f6e4 -E37,"San Remo Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.a2a3 b4c3 6.c2c3 f6e4 7.c3c2 b8c6 8.e2e3 e6e5 -E38,"Berlin Variation, Nimzo-Indian; E38",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 c7c5 -E38,"Steiner Variation, Nimzo-Indian��",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 c7c5 5.d4c5 b4c3 -E39,"Pirc Variation, Nimzo-Indian; E39",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 c7c5 5.d4c5 e8g8 -E40,"Rubinstein Variation, Nimzo-Indian; E40",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 -E40,"Keres Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 d7d5 5.a2a3 b4c3 6.b2c3 c7c5 7.c4d5 e6d5 8.f1d3 e8g8 9.g1e2 b7b6 -E40,"Taimanov Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b8c6 -E40,"Ragozin Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b8c6 5.g1f3 e8g8 6.f1d3 d7d5 7.e1g1 d5c4 -E41,"Huebner Variation, Nimzo-Indian; E41",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 -E41,"Huebner Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 5.f1d3 b8c6 6.g1f3 b4c3 -E41,"Panov Attack, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 5.g1f3 c5d4 6.e3d4 d7d5 -E42,"Rubinstein Variation, Nimzo-Indian; E42",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 5.g1e2 -E42,"Sherbakov Attack, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 5.g1e2 c5d4 6.e3d4 e8g8 7.c4c5 -E43,"St. Petersburg Variation, Nimzo-Indian; E43",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b7b6 -E44,"Fischer Variation, Nimzo-Indian; E44",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b7b6 5.g1e2 -E45,"Bronstein Variation, Nimzo-Indian; E45; Byrne Variation",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b7b6 5.g1e2 c8a6 -E46,"Normal Variation, Nimzo-Indian; E46",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 -E46,"Reshevsky Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1e2 -E46,"Simagin Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1e2 d7d5 6.a2a3 b4d6 -E47,"Bishop Attack, Nimzo-Indian; E47",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 -E48,"Classical Defense, Nimzo-Indian; E48",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 -E48,"Olafsson Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.g1f3 c7c5 7.e1g1 d5c4 8.d3c4 b7b6 9.d1e2 c8b7 10.f1d1 d8c8 -E48,"Bronstein Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.g1f3 c7c5 7.e1g1 d5c4 8.d3c4 c8d7 -E48,"Bronstein Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.g1f3 c7c5 7.e1g1 d5c4 8.d3c4 b8d7 9.c3e2 -E48,"Smyslov Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.g1f3 c7c5 7.e1g1 d5c4 8.d3c4 d8e7 -E49,"Botvinnik System, Nimzo-Indian; E49",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.a2a3 b4c3 7.b2c3 -E50,E50,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 -E50,"Huebner Deferred, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 c7c5 -E51,"Ragozin Variation, Nimzo-Indian; E51",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 -E51,"Saemisch Deferred, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.a2a3 -E52,"Schlechter Defense, Nimzo-Indian; E52",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 b7b6 -E53,Bernstein Defense; Gligoric System; E53,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 -E53,"Keres Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b7b6 -E54,E54,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 d5c4 8.d3c4 -E55,"Bronstein Variation, Nimzo-Indian; E55",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 d5c4 8.d3c4 b8d7 -E55,"Smyslov Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 d5c4 8.d3c4 d8e7 -E56,"Bernstein Variation, Nimzo-Indian; E56",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b8c6 -E57,E57,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b8c6 8.a2a3 d5c4 9.d3c4 c5d4 -E58,E58,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b8c6 8.a2a3 b4c3 9.b2c3 -E59,E59,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b8c6 8.a2a3 b4c3 9.b2c3 d5c4 10.d3c4 -E60,King's Indian Defense; West Indian Defense; E60,1.d2d4 g8f6 2.c2c4 g7g6 -E60,"Fianchetto Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 -E60,Counterthrust Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d5 -E60,Kemeri Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d5 5.c4d5 f6d5 6.g1f3 e8g8 7.e1g1 c7c5 -E60,Yugoslav Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 c7c5 -E60,Bronstein Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 c7c6 7.e1g1 d8a5 -E60,Panno Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 b8c6 7.e1g1 a7a6 8.h2h3 a8b8 -E60,Spassky Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 b8c6 7.e1g1 c8f5 -E60,Simagin Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 b8c6 7.e1g1 c8g4 -E60,Szabo Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 b8c6 7.e1g1 e7e5 -E60,Panno System,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.e1g1 b8c6 7.d4d5 c6a5 -E60,"King's Knight Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.g1f3 -E60,"Santassiere Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.g1f3 f8g7 4.b2b4 -E61,E61,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 -E61,"Smyslov Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.c1g5 -E61,"Smyslov Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.c1g5 -E62,"Delayed Fianchetto, KID; E62",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 -E62,"Larsen Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c6 7.e1g1 c8f5 -E62,"Kavalek Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c6 7.e1g1 d8a5 -E62,"Benjamin Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c6 7.e1g1 d8b6 -E62,"Carlsbad Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 -E62,"Lesser Simagin (Spassky) Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 7.e1g1 c8f5 -E62,"Simagin Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 7.e1g1 c8g4 -E62,"Uhlmann-Szabo System, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 7.e1g1 e7e5 -E63,"Panno Variation, KID; E63",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 7.e1g1 a7a6 -E64,"Yugoslav Variation, KID; E64",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c5 -E65,E65,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c5 7.e1g1 -E66,E66,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c5 7.e1g1 b8c6 8.d4d5 -E68,E68,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8d7 7.e1g1 e7e5 8.e2e4 -E69,E69,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8d7 7.e1g1 e7e5 8.e2e4 c7c6 9.h2h3 -E70,"Normal Variation, KID; E70",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 -E70,"Accelerated Averbakh Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.c1g5 -E71,"Makogonov Variation, KID; E71",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.h2h3 -E72,"Deferred Fianchetto, KID; E72",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g2g3 -E72,"Pomar System, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g2g3 e8g8 6.f1g2 e7e5 7.g1e2 -E73,E73,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 -E73,"Semi-Averbakh System, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1e3 -E73,"Averbakh Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 -E73,"Spanish Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 a7a6 -E73,"Flexible Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 h7h6 -E73,"Burgess Line, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 b8a6 7.d1d2 c7c6 -E73,"Geller Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 b8d7 -E74,"Benoni Defense, KID; E74",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 c7c5 -E76,"Four Pawns Attack, KID; E76",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 -E76,"Six Pawns Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 c7c5 6.d4d5 e8g8 7.f1e2 e7e6 8.d5e6 f7e6 9.g2g4 b8c6 10.h2h4 -E76,"Modern Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 b8a6 -E76,"Dynamic Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.g1f3 c7c5 7.d4d5 -E77,"Six Pawns Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 -E77,E77,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.f1e2 -E77,"Florentine Gambit, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.f1e2 c7c5 7.d4d5 e7e6 8.g1f3 e6d5 9.e4e5 -E78,"Fluid Attack, KID; E78",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.f1e2 c7c5 7.g1f3 -E79,"Exchange Variation, Four Pawns Attack, KID; E79",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.f1e2 c7c5 7.g1f3 c5d4 8.f3d4 b8c6 9.c1e3 -E80,"Saemisch Variation, KID; E80",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 -E80,"Bronstein Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e7e5 6.d4d5 f6h5 7.c1e3 b8a6 8.d1d2 d8h4 9.g2g3 h5g3 10.d2f2 g3f1 11.f2h4 f1e3 12.e1f2 e3c4 -E81,"Normal Defesne, Sameisch Variation, KID; E81",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 -E81,"Byrne Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 c7c6 7.f1d3 a7a6 -E81,"Steiner Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1g5 -E81,"Bobotsov-Korchnoi-Petrosian Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.g1e2 -E82,"Double Fianchetto, KID; E82",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b7b6 -E83,"Yates Defense, KID; E83",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b8c6 -E83,"Panno Formation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b8c6 7.g1e2 a7a6 -E83,"Ruban Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b8c6 7.g1e2 a8b8 -E84,E84,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b8c6 7.g1e2 a7a6 8.d1d2 a8b8 -E85,"Orthodox Variation, KID; E85",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 -E86,E86,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.g1e2 c7c6 -E87,"Closed Variation, KID; E87",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.d4d5 -E87,"Bronstein Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.d4d5 f6h5 8.d1d2 d8h4 9.g2g3 h5g3 10.d2f2 g3f1 -E88,E88,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.d4d5 c7c6 -E89,E89,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.d4d5 c7c6 8.g1e2 -E90,E90,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 -E90,"Larsen Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.c1e3 -E90,"Zinnowitz Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.c1g5 -E91,"Orthodox Variation, KID; E91",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 -E92,E92,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 -E92,"Gligoric-Taimanov Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.c1e3 -E92,"Petrosian Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.d4d5 -E92,"Stein Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.d4d5 a7a5 -E93,E93,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.d4d5 b8d7 -E93,"Keres Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.d4d5 b8d7 8.c1g5 h7h6 9.g5h4 g6g5 10.h4g3 f6h5 11.h2h4 -E94,E94,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 -E94,"Ukranian Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 a7a5 -E94,"Donner Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 c7c6 -E94,"Glek Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8a6 -E95,E95,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8d7 8.f1e1 -E96,E96,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8d7 8.f1e1 c7c6 9.e2f1 a7a5 -E97,"Aronin-Taimanov Variation, KID; E97",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 -E97,"Normal Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 -E97,"Bayonet Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.b2b4 -E97,"Yepishin's Line, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.b2b4 f6h5 10.d1c2 -E97,"Sokolov's Line, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.b2b4 f6h5 10.f1e1 -E97,"Korchnoi Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.c1d2 -E98,E98,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.f3e1 -E98,"Kozul Gambit, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.f3e1 f6d7 10.c1e3 f7f5 -E99,"Benko Attack, KID; E99",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.f3e1 f6d7 10.f2f3 -E99,"Benko Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.f3e1 f6d7 10.f2f3 f7f5 11.g2g4 diff --git a/opening/eco.go b/opening/eco.go index da33a71..55ccc91 100644 --- a/opening/eco.go +++ b/opening/eco.go @@ -11,7 +11,7 @@ import ( "github.com/notnil/chess" ) -// BookECO represents the Encyclopaedia of Chess Openings https://en.wikipedia.org/wiki/Encyclopaedia_of_Chess_Openings +// BookECO represents the Encyclopedia of Chess Openings https://en.wikipedia.org/wiki/Encyclopaedia_of_Chess_Openings // BookECO is safe for concurrent use. type BookECO struct { root *node @@ -34,6 +34,7 @@ func NewBookECO() *BookECO { startingPosition: startingPosition, } r := csv.NewReader(bytes.NewBuffer(ecoData)) + r.Comma = '\t' records, err := r.ReadAll() if err != nil { log.Fatal(err) @@ -42,7 +43,7 @@ func NewBookECO() *BookECO { if i == 0 { continue } - o := &Opening{code: row[0], title: row[1], pgn: row[2]} + o := &Opening{code: row[0], title: row[1], pgn: row[3]} b.insert(o) } return b @@ -140,6 +141,9 @@ func (b *BookECO) draw(w io.Writer) error { if n.opening != nil { title = n.opening.title } + if !strings.Contains(title, "French Defense") { + continue + } s += fmt.Sprintf(`%s [label="%s"];`+"\n", n.label, title) for m, c := range n.children { s += fmt.Sprintf(`%s -> %s [label="%s"];`+"\n", n.label, c.label, m) diff --git a/opening/eco_data.go b/opening/eco_data.go index fad5678..a89b1c0 100644 --- a/opening/eco_data.go +++ b/opening/eco_data.go @@ -1,2577 +1,3400 @@ package opening -var ecoData = []byte(`Code,Name,PGN -A00,Anderssen's Opening,1.a2a3 -A00,"Polish Gambit, Anderssen's Opening",1.a2a3 a7a5 2.b2b4 -A00,Creepy Crawly Formation,1.a2a3 e7e5 2.h2h3 d7d5 -A00,Andersspike,1.a2a3 g7g6 2.g2g4 -A00,Ware; Meadow Hay; Crab,1.a2a4 -A00,"Wing Gambit, Ware Opening",1.a2a4 b7b5 -A00,"Cologne Gambit, Ware Opening",1.a2a4 b7b6 2.d2d4 d7d5 3.b1c3 b8d7 -A00,Ware Gambit,1.a2a4 e7e5 2.a4a5 d7d5 3.e2e3 f7f5 4.a5a6 -A00,Polish; Orangutan; Sokolsky; Hunt,1.b2b4 -A00,"Birmingham Gambit, Polish",1.b2b4 c7c5 -A00,"Schuhler Gambit, Polish",1.b2b4 c7c6 2.c1b2 a7a5 3.b4b5 c6b5 4.e2e4 -A00,"Myers Variation, Polish",1.b2b4 d7d5 2.c1b2 c7c6 3.a2a4 -A00,"Bugayev Attack, Polish",1.b2b4 e7e5 2.a2a3 -A00,"Wolferts Gambit, Polish",1.b2b4 e7e5 2.c1b2 c7c5 -A00,Schiffler-Sokolsky; Tartakower Gambit,1.b2b4 e7e5 2.c1b2 f7f6 3.e2e4 f8b4 -A00,"Brinckmann Variation, Polish",1.b2b4 e7e5 2.c1b2 f7f6 3.e2e4 f8b4 4.f1c4 b8c6 5.f2f4 d8e7 6.f4f5 g7g6 -A00,"Bucker Defense, Polish",1.b2b4 b8a6 -A00,"Grigorian Variation, Polish",1.b2b4 b8c6 -A00,Polish Spike,1.b2b4 g8f6 2.c1b2 g7g6 3.g2g4 -A00,"Karniewski; Tubingen Variation, Polish",1.b2b4 g8h6 -A00,Saragossa; Hempel's Opening,1.c2c3 -A00,Hanham; Hayward,1.c2c3 e7e5 2.d1c2 -A00,Venezolana,1.d2d3 c7c5 2.b1c3 b8c6 3.g2g3 -A00,Reversed Rat,1.d2d3 e7e5 -A00,Spike Deferred; Myers Spike Attack,1.d2d3 g7g6 2.g2g4 -A00,Keoni-Hiva Gambit,1.e2e3 d7d5 2.b1c3 g8f6 3.a2a3 e7e5 4.f2f4 e5f4 5.g1f3 -A00,Van't Kruijs Opening,1.e2e3 e7e5 -A00,Bouncing Bishop Variation,1.e2e3 e7e5 2.f1c4 b7b5 3.c4b3 -A00,Amsterdam Attack,1.e2e3 e7e5 2.c2c4 d7d6 3.b1c3 b8c6 4.b2b3 g8f6 -A00,Ekolu Variation,1.e2e3 e7e5 2.b1c3 d7d5 3.f2f4 e5f4 4.g1f3 -A00,Alua Variation,1.e2e3 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 -A00,Akahi Variation,1.e2e3 e7e5 2.b1c3 g8f6 3.f2f4 e5f4 4.g1f3 -A00,King's Head Opening,1.f2f3 e7e5 2.e2e4 -A00,Hammerschlag; Pork Chop Opening,1.f2f3 e7e5 2.e1f2 -A00,Gambit 59,1.g2g3 d7d5 2.f1g2 e7e5 3.b2b4 -A00,Regan Variation,1.g2g3 d7d5 2.f1g2 e7e5 3.d2d4 -A00,Reversed Alekhine,1.g2g3 e7e5 2.g1f3 -A00,Lasker Simul Special,1.g2g3 h7h5 -A00,Grob; Ahlhausen; Colibri; Fric; Genoa; Spike,1.g2g4 -A00,Grob Gambit,1.g2g4 d7d5 2.f1g2 c8g4 -A00,"Romford Counter-Gambit, Grob",1.g2g4 d7d5 2.f1g2 c8g4 3.c2c4 d5d4 -A00,"Spike, Grob",1.g2g4 d7d5 2.f1g2 c7c6 3.g4g5 -A00,"Short Spike, Grob",1.g2g4 d7d5 2.f1g2 c7c6 3.h2h3 -A00,"Zilbermints Gambit, Grob",1.g2g4 d7d5 2.e2e4 -A00,"Keene Defense, Grob",1.g2g4 d7d5 2.h2h3 e7e5 -A00,"Hurst Attack, Grob",1.g2g4 e7e5 2.f1g2 d7d5 3.c2c4 -A00,"Alessi Gambit, Grob",1.g2g4 f7f5 -A00,Double Grob,1.g2g4 g7g5 -A00,Spike Deferred,1.g2g4 g7g6 2.d2d3 -A00,"Bucker Defense, Grob",1.g2g4 g8h6 -A00,Clemenz Opening,1.h2h3 -A00,Kadas Opening,1.h2h4 -A00,Despres Opening,1.h2h4 -A00,Koola-Koola,1.h2h4 a7a5 -A00,Wulumulu,1.h2h4 e7e5 2.d2d4 -A00,Durkin's Opening; Sodium Attack,1.b1a3 -A00,Dunst; Heinrichsen; Will Bull; Kotrc,1.b1c3 -A00,"St. George Defense, Dunst",1.b1c3 a7a6 -A00,"Novosibirsk Variation, Dunst",1.b1c3 c7c5 2.d2d4 c5d4 3.d1d4 b8c6 4.d4h4 -A00,"Twyble Attack, Dunst",1.b1c3 c7c5 2.a1b1 -A00,Dunst Gambit,1.b1c3 d7d5 2.e2e4 d5e4 3.d2d3 -A00,"Pseudo-Diemer Gambit, Dunst",1.b1c3 d7d5 2.e2e4 d5e4 3.f2f3 e4f3 4.d1f3 -A00,"Amazon, Dunst",1.b1c3 d7d5 2.e2e4 d5e4 3.c3e4 d8d5 -A00,"Battambang, Dunst",1.b1c3 e7e5 2.a2a3 -A00,Irish Attack; Polish Attack,1.b1c3 e7e5 2.f2f4 -A00,"Napoleon Attack, Dunst",1.b1c3 e7e5 2.g1f3 -A00,"Glasscoe Gambit, Dunst",1.b1c3 f7f5 2.g2g4 -A00,"Anti-Pirc Variation, Dunst",1.b1c3 g7g6 2.h2h4 -A00,"Tubingen Gambit, Dunst",1.b1c3 g8f6 2.g2g4 -A00,Amar; Paris Opening,1.g1h3 -A00,Drunken Knight Opening,1.g1h3 -A00,Krazy Kat,1.g1h3 e7e5 2.f2f3 d7d5 3.h3f2 -A01,Larsen; Queen's Fianchetto; Nimzo-Larsen Attack A01,1.b2b3 -A01,"Symmetrical Variation, Larsen",1.b2b3 b7b6 -A01,"English Variation, Larsen",1.b2b3 c7c5 -A01,"Classical Variation, Larsen",1.b2b3 d7d5 -A01,"Modern Variation, Larsen",1.b2b3 e7e5 -A01,"Ringelbach Gambit, Larsen",1.b2b3 e7e5 2.c1b2 f7f5 3.e2e4 -A01,"Paschmann Gambit, Larsen",1.b2b3 e7e5 2.c1b2 b8c6 3.f2f4 -A01,"Dutch Variation, Larsen",1.b2b3 f7f5 -A01,"Spike Variation, Larsen",1.b2b3 g8f6 2.c1b2 g7g6 3.g2g4 -A02,�Bird's Opening; Dutch Attack,1.f2f4 -A02,"From's Gambit, Bird",1.f2f4 e7e5 -A02,Canard Formation; Double Duck,1.f2f4 f7f5 2.d2d4 d7d5 -A02,"Pawn Thrust Attack, Bird",1.f2f4 f7f5 2.d2d4 d7d5 -A02,"Swiss Gambit, Bird",1.f2f4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.g2g4 -A02,"Hobbs Gambit, Bird",1.f2f4 g7g5 -A02,"Batavo Polish Attack, Bird",1.f2f4 g8f6 2.g1f3 g7g6 3.b2b4 -A03,A03,1.f2f4 d7d5 -A03,Sturm; Mujannah�,1.f2f4 d7d5 2.c2c4 -A03,"Prokofiev Gambit, Bird",1.f2f4 d7d5 2.e2e4 d5e4 3.d2d3 -A03,"Williams Gambit, Bird",1.f2f4 d7d5 2.e2e4 d5e4 3.b1c3 -A03,"Horsefly Defense, Bird",1.f2f4 g8h6 -A04,Wade Defense,1.g1f3 d7d6 -A04,Polish G; Dalesio G; Pirc-Lisitsin G,1.g1f3 f7f5 2.e2e4 f5e4 3.f3g5 -A04,"Herrstrom Gambit, Reti",1.g1f3 g7g5 -A04,Oberndorfer Gambit; Reti,1.g1f3 g7g5 -A04,Lessing Defense,1.g1f3 b8c6 -A05,King's Indian Attack; Reti; Zukertort; A05,1.g1f3 g8f6 -A06,A06,1.g1f3 d7d5 -A06,"Nimzovich Opening, Reti",1.g1f3 d7d5 2.b2b3 -A06,"Bloodgood Gambit, Reti",1.g1f3 d7d5 2.b2b3 c7c5 3.e2e4 d5e4 4.f3e5 -A06,"Santasiere's Folly, Reti",1.g1f3 d7d5 2.b2b4 -A06,Old Indian Attack,1.g1f3 d7d5 2.d2d3 -A06,Tennison G; Lemberg G; Abonyi G,1.g1f3 d7d5 2.e2e4 -A06,"Reversed Mexican Defense, Reti",1.g1f3 d7d5 2.b1c3 -A06,"Ampel Variation, Reti",1.g1f3 d7d5 2.h1g1 -A06,"Improved Lisitsin G, Reti",1.g1f3 f7f5 2.d2d3 -A07,"Barcza Opening, Reti; A07",1.g1f3 d7d5 2.g2g3 -A08,A08,1.g1f3 d7d5 2.g2g3 c7c5 -A09,Reti Polonaise,1.g1f3 d7d5 2.c2c4 d5d4 3.b2b4 -A09,"Penguin Variation, Reti",1.g1f3 d7d5 2.c2c4 d5d4 3.h1g1 -A09,Reti Gambit Accepted,1.g1f3 d7d5 2.c2c4 d5c4 -A09,"Neo-Catalan, Reti",1.g1f3 d7d5 2.c2c4 e7e6 3.g2g3 -A10,English Opening; A10,1.c2c4 -A10,"Halibut Gambit, English",1.c2c4 b7b5 -A10,"Anglo Scandanavian Defense, English",1.c2c4 d7d5 -A10,"Loehn Gambit, English",1.c2c4 d7d5 2.c4d5 e7e6 -A10,"Schulz Gambit, English",1.c2c4 d7d5 2.c4d5 g8f6 -A10,"Malvinas Variation, English",1.c2c4 d7d5 2.c4d5 d8d5 3.b1c3 d5a5 -A10,Anglo-Dutch Defense,1.c2c4 f7f5 -A10,Anglo-Polish Dutch,1.c2c4 f7f5 2.b2b4 -A10,"Hickmann Gambit, English",1.c2c4 f7f5 2.e2e4 -A10,"Hickmann Gambit, English",1.c2c4 f7f5 2.e2e4 f5e4 3.d2d3 -A10,"Porcupine Variation, English",1.c2c4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.g2g4 -A10,"Wade Gambit, English",1.c2c4 f7f5 2.g2g4 -A10,English Spike,1.c2c4 f7f5 2.g2g4 -A10,"Chabanon Gambit, English",1.c2c4 f7f5 2.g1f3 d7d6 3.e2e4 -A10,"Myers Defense, English",1.c2c4 g7g5 2.d2d4 f8g7 -A10,"Zilbermints Gambit, English",1.c2c4 g7g5 2.d2d4 e7e5 -A10,"Adorjan System, English",1.c2c4 g7g6 2.e2e4 e7e5 -A10,Beefeater,1.c2c4 g7g6 2.b1c3 f8g7 3.d2d4 c7c5 4.d4d5 g7c3 5.b2c3 f7f5 -A10,"Anglo-Lithuanian Variation, English",1.c2c4 b8c6 -A11,"Anglo-Slav, English; A11",1.c2c4 c7c6 -A12,A12,1.c2c4 c7c6 2.g1f3 d7d5 3.b2b3 -A12,"Bled Variation, English",1.c2c4 c7c6 2.g1f3 d7d5 3.b2b3 g8f6 4.g2g3 g7g6 -A13,"Agincourt; Kurajica Defense, English; A13",1.c2c4 e7e6 -A13,English Defense,1.c2c4 e7e6 2.d2d4 b7b6 -A13,"King's Knight Variation, English",1.c2c4 e7e6 2.g1f3 d7d5 -A13,"Wimpy System, English",1.c2c4 e7e6 2.g1f3 d7d5 3.b2b3 g8f6 4.c1b2 c7c5 5.e2e3 -A13,"Afincourt Variation, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 -A13,"Kurajica Defense, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 c7c6 -A13,"Neo Catalan, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 -A13,"Neo Catalan Accepted, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 4.f1g2 d5c4 -A13,"Romanishin Gambit, English",1.c2c4 e7e6 2.g1f3 g8f6 3.g2g3 a7a6 4.f1g2 b7b5 -A14,A14,1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 4.f1g2 f8e7 -A14,"Neo Catalan Declined, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 4.f1g2 f8e7 5.e1g1 -A14,"Keres Defense, English",1.c2c4 e7e6 2.g1f3 d7d5 3.g2g3 g8f6 4.f1g2 f8e7 5.e1g1 c7c5 6.c4d5 f6d5 7.b1c3 b8c6 -A15,"Anglo System, English; A15",1.c2c4 g8f6 -A15,"Mikenas-Carls Variation, English",1.c2c4 g8f6 -A15,English Orangutan,1.c2c4 g8f6 2.b2b4 -A15,Shirazi Shove,1.c2c4 g8f6 2.g2g3 h7h5 -A15,"King's Knight Variation, English",1.c2c4 g8f6 2.g1f3 -A15,"Romanishin Variation, English",1.c2c4 g8f6 2.g1f3 e7e6 3.g2g3 a7a6 -A16,A16,1.c2c4 g8f6 2.b1c3 -A16,"Golombek Defense, English; Anti English",1.c2c4 g8f6 2.b1c3 d7d5 -A16,"Czech Variation, English",1.c2c4 g8f6 2.b1c3 d7d5 3.c4d5 f6d5 4.g2g3 g7g6 5.f1g2 d5b6 -A16,"Korchnoi's Variation, English",1.c2c4 g8f6 2.b1c3 d7d5 3.c4d5 f6d5 4.g1f3 g7g6 5.g2g3 f8g7 6.f1g2 e7e5 -A16,"Stein Attack, English",1.c2c4 g8f6 2.b1c3 d7d5 3.c4d5 f6d5 4.g1f3 g7g6 5.d1a4 -A16,Anti-anti-grunfeld,1.c2c4 g8f6 2.b1c3 g7g6 3.g1f3 f8g7 4.e2e4 -A17,"Smyslov Defense, English",1.c2c4 g8f6 2.b1c3 d7d5 3.c4d5 f6d5 4.g2g3 g7g6 5.f1g2 d5c3 -A17,"Hegehog System, Anglo-Indian English; A17",1.c2c4 g8f6 2.b1c3 e7e6 -A17,Nimzo-English Opening,1.c2c4 g8f6 2.b1c3 e7e6 3.g1f3 f8b4 -A17,"Zviagintsev-Krasenkov Attack, English",1.c2c4 g8f6 2.b1c3 e7e6 3.g1f3 f8b4 4.g2g4 -A18,"Flohr-Mikenas-Carls Variation, English; A18",1.c2c4 g8f6 2.b1c3 e7e6 3.e2e4 -A18,"Kevitz Defense, English",1.c2c4 g8f6 2.b1c3 e7e6 3.e2e4 b8c6 -A18,"Queen's Indian Formation, English",1.c2c4 g8f6 2.b1c3 e7e6 3.g1f3 b7b6 -A19,"Floh-Mikenas-Carls Variation, English; A19",1.c2c4 g8f6 2.b1c3 e7e6 3.e2e4 c7c5 -A19,"Nei Gambit, English",1.c2c4 g8f6 2.b1c3 e7e6 3.e2e4 c7c5 4.e4e5 f6g8 -A20,"Kahiko-Hula Gambit, English",1.c2c4 e7e5 2.e2e3 g8f6 3.f2f4 e5f4 4.g1f3 -A20,"Double Whammy, English",1.c2c4 e7e5 2.f2f4 -A20,"Drill Variation, English",1.c2c4 e7e5 2.g2g3 h7h5 -A20,"Nimzovich Variation, English",1.c2c4 e7e5 2.g1f3 -A20,"Nimzovich-Flohr Variation, English",1.c2c4 e7e5 2.g1f3 e5e4 -A20,English Queen,1.c2c4 e7e5 2.d1a4 -A21,"Reversed Sicilian, English; A21",1.c2c4 e7e5 2.b1c3 -A21,"Kramnik-Shirov Variation, English",1.c2c4 e7e5 2.b1c3 f8b4 -A21,"Troger Variation, English",1.c2c4 e7e5 2.b1c3 d7d6 3.g2g3 c8e6 4.f1g2 b8c6 -A21,"Keres Defense, English",1.c2c4 e7e5 2.b1c3 d7d6 3.g2g3 c7c6 -A21,"General Variation, King's English",1.c2c4 e7e5 2.b1c3 d7d6 3.g1f3 -A21,"Smyslov Variation, English",1.c2c4 e7e5 2.b1c3 d7d6 3.g1f3 c8g4 -A21,Anglo-Dutch,1.c2c4 e7e5 2.b1c3 f7f5 -A22,"Two Knights Variation, English; A22",1.c2c4 e7e5 2.b1c3 g8f6 -A22,"Mazedonisch Variation, English",1.c2c4 e7e5 2.b1c3 g8f6 3.f2f4 -A22,"Bremen; Carls Variation, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 -A22,"Kapengut; Smyslov; Modern V, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 f8b4 -A22,"Bellon Gambit, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g1f3 e5e4 4.f3g5 b7b5 -A22,"Erbenheimer Gambit, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g1f3 e5e4 4.f3g5 f6g4 -A23,"Keres Variation, English; A23",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 c7c6 -A23,"Reversed Dragon, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 d7d5 -A24,"Fianchetto Lines, Two Knights Variation, English; A24",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 g7g6 -A24,"Prickly Pawn Pass System, English",1.c2c4 e7e5 2.b1c3 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.e2e4 e8g8 7.g1e2 c7c6 8.e1g1 a7a6 -A25,"Reversed Closed Sicilian, English; A25",1.c2c4 e7e5 2.b1c3 b8c6 -A25,"Taimanov Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 -A25,"Hungarian Attack, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.a1b1 -A25,"Closed System, Full Symmetry, King's English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 -A25,"Botvinnik System, King's English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.e2e4 -A25,"Bremen-Hort Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.e2e3 d7d6 6.g1e2 c8e6 -A25,"Botvinnik Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.e2e4 -A26,"Closed System, King's English; A26",1.c2c4 e7e5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 -A27,"Three Knights System, English; A27",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 -A28,"Four Knights Variation, English; A28",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 -A28,"Korchnoi Line, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.a2a3 -A28,"Flexible Line, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.d2d3 -A28,"Bradley Beach Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.d2d4 e5e4 -A28,"Quiet Line, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.e2e3 -A28,"Romanishin Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.e2e3 f8b4 5.d1c2 b4c3 -A28,"Keene; Stean Variation, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.e2e3 f8b4 5.d1c2 e8g8 6.c3d5 f8e8 7.c2f5 -A28,"Botvinnik Line, English",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.e2e4 -A29,"Fianchetto Line, Four Knights English; A29",1.c2c4 e7e5 2.b1c3 b8c6 3.g1f3 g8f6 4.g2g3 -A30,"Wing Variation, English",1.c2c4 c7c5 2.b2b4 -A30,"Napolitano Gambit, Symmetrical English",1.c2c4 c7c5 2.g1f3 g8f6 3.b2b4 -A30,"Hedgehog Variation, Symmetrical English",1.c2c4 c7c5 2.g1f3 g8f6 3.g2g3 b7b6 4.f1g2 c8b7 5.e1g1 e7e6 6.b1c3 f8e7 -A30,"Double Fianchetto Defense, English",1.c2c4 c7c5 2.g1f3 g8f6 3.g2g3 b7b6 4.f1g2 c8b7 5.e1g1 g7g6 -A31,"Anti-Benoni Variation, Symmetrical English; A31",1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 -A31,"Two Knights Variation, English",1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 c5d4 4.f3d4 -A32,"Spielmann Defense, Symmetrical English; A32",1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 c5d4 4.f3d4 e7e6 -A33,A33,1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 c5d4 4.f3d4 e7e6 5.b1c3 b8c6 -A33,"Geller Variation, Symmetrical English",1.c2c4 c7c5 2.g1f3 g8f6 3.d2d4 c5d4 4.f3d4 e7e6 5.b1c3 b8c6 6.g2g3 d8b6 -A34,"Normal Variation, Symmetrical English; A34",1.c2c4 c7c5 2.b1c3 -A34,"Fianchetto Variation, Symmetrical English��",1.c2c4 c7c5 2.b1c3 g8f6 3.g2g3 -A34,"Rubinstein Variation, Symmetrical English",1.c2c4 c7c5 2.b1c3 g8f6 3.g2g3 d7d5 4.c4d5 f6d5 5.f1g2 d5c7 -A34,"Asymmetrical Variation, English",1.c2c4 c7c5 2.b1c3 g8f6 3.g1f3 d7d5 4.c4d5 f6d5 -A34,"Keres-Parma System, English",1.c2c4 c7c5 2.b1c3 g8f6 3.g1f3 e7e6 4.g2g3 b8c6 -A36,"Fianchetto Variation, Symmetrical English; A36",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 -A36,"Symmetrical Variation, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 -A36,"Botvinnik System Reversed, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.e2e3 e7e5 -A36,"Botvinnik Variation, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.e2e4 -A37,"Two Knights Line, Symmetrical English; A37",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 -A38,"Full Symmetry Line, Symmetrical English; A38",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 g8f6 -A38,"Double Fianchetto, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 g8f6 6.e1g1 e8g8 7.b2b3 -A38,"Duchamp Variation, Symmetrical English",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 g8f6 6.e1g1 e8g8 7.d2d3 -A39,"Mecking Variation, Symmetrical English; A39",1.c2c4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 g8f6 6.e1g1 e8g8 7.d2d4 -A40,"Hartlaub Gambit, English",1.c2c4 b7b6 2.d2d4 c8b7 3.b1c3 e7e6 4.e2e4 f7f5 5.e4f5 g8f6 -A40,Queen Pawn Opening; A40,1.d2d4 -A40,St George's Gambit,1.d2d4 a7a6 2.c2c4 b7b5 3.e2e4 e7e6 4.c4b5 a6b5 -A40,"Spassky Gambit, Polish Defense",1.d2d4 b7b5 2.e2e4 c8b7 3.f1b5 -A40,"Queen Fianchetto, Queen Pawn Game",1.d2d4 b7b6 -A40,Charlick Gambit; Englund Gambit,1.d2d4 e7e5 -A40,Englund Gambit Declined,1.d2d4 e7e5 2.d4d5 -A40,Diemer Counterattack,1.d2d4 e7e5 2.d4d5 f8c5 3.e2e4 d8h4 -A40,Thuring Gambit; Hartlaub-Charlick Gambit,1.d2d4 e7e5 2.d4e5 d7d6 -A40,Soller; Purchas Gambit,1.d2d4 e7e5 2.d4e5 f7f6 -A40,Felbecker Gambit,1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 f8c5 -A40,Soller Gambit Deferred,1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 f7f6 -A40,"Zilbermints Gambit II, Englund Gambit",1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 h7h6 -A40,"Zilbermints Gambit, Englund Gambit",1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 g8e7 -A40,Englund Gambit,1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 d8e7 -A40,"Stockhom Variation, Englund Gambit",1.d2d4 e7e5 2.d4e5 b8c6 3.g1f3 d8e7 4.d1d5 -A40,"Mosquito Gambit, Englund",1.d2d4 e7e5 2.d4e5 d8h4 -A40,Horwitz Defense,1.d2d4 e7e6 -A40,Franco-Indian Defense,1.d2d4 e7e6 -A40,"Seneschaud Variation, Dutch",1.d2d4 e7e6 2.c1f4 f7f5 3.g2g4 -A40,English Defense,1.d2d4 e7e6 2.c2c4 b7b6 -A40,Perrin Variation,1.d2d4 e7e6 2.c2c4 b7b6 3.e2e4 c8b7 4.f1d3 b8c6 -A40,Poli Gambit,1.d2d4 e7e6 2.c2c4 b7b6 3.e2e4 c8b7 4.f2f3 f7f5 5.e4f5 g8h6 -A40,Hartlaub Gambit Declined,1.d2d4 e7e6 2.c2c4 b7b6 3.b1c3 c8b7 4.e2e4 f7f5 5.d4d5 -A40,Hartlaub Gambit Accepted,1.d2d4 e7e6 2.c2c4 b7b6 3.b1c3 c8b7 4.e2e4 f7f5 5.e4f5 g8f6 -A40,"Keres Defense, Indian; Kangaroo Defense",1.d2d4 e7e6 2.c2c4 f8b4 -A40,"Transpositional Variation, Keres Defense",1.d2d4 e7e6 2.c2c4 f8b4 3.b1c3 -A40,Zilbermints Gambit,1.d2d4 e7e6 2.c2c4 e6e5 -A40,Borg Gambit,1.d2d4 g7g5 -A40,Queen Pawn Fianchetto,1.d2d4 g7g6 -A40,Kotov-Robatsch Defense,1.d2d4 g7g6 2.c2c4 f8g7 -A40,Pseudo-Saemisch,1.d2d4 g7g6 2.c2c4 f8g7 3.e2e4 d7d6 4.c1e3 g8f6 5.f2f3 -A40,Rossolimo Variation,1.d2d4 g7g6 2.c2c4 f8g7 3.e2e4 d7d6 4.g1f3 c8g4 -A40,Neo-Modern Defense,1.d2d4 g7g6 2.c2c4 f8g7 3.e2e4 e7e5 -A40,Beefeater Variation,1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 c7c5 4.d4d5 g7c3 5.b2c3 f7f5 -A40,Modern Defense,1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 -A40,"Kotov Variation, Modern",1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 4.e2e4 b8c6 -A40,Lizard Defense; Pirc-Diemer Gambit,1.d2d4 g7g6 2.h2h4 g8f6 3.h4h5 -A40,Bogoljubov; Mikenas-Van Geet Defense,1.d2d4 b8c6 -A40,Lundin Defense,1.d2d4 b8c6 -A40,"Lithuanian Variation, Mikenas",1.d2d4 b8c6 2.c2c4 e7e5 3.d4d5 c6e7 -A40,"Cannstatter Variation, Mikenas",1.d2d4 b8c6 2.c2c4 e7e5 3.d4d5 c6d4 -A40,Pozarek Gambit,1.d2d4 b8c6 2.c2c4 e7e5 3.d4e5 c6e5 4.b1c3 e5c4 -A40,Montevideo Defense,1.d2d4 b8c6 2.d4d5 c6b8 -A40,Zaire Defense,1.d2d4 b8c6 2.d4d5 c6b8 3.e2e4 g8f6 4.e4e5 f6g8 -A40,Polish Variation,1.e2e4 g7g6 2.d2d4 f8g7 3.c2c4 c7c5 4.g1f3 d8b6 -A40,"Dunworth Variation, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.c2c4 d7d5 4.e4d5 c7c6 5.d5c6 g7d4 -A41,Anglo-Slav Opening,1.d2d4 c7c6 2.c2c4 d7d6 -A41,Wade Defense,1.d2d4 d7d6 2.g1f3 c8g4 -A41,"Averbakh Variation, Modern",1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 4.e2e4 -A41,"Pterodactyl Variation, Modern",1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 4.e2e4 c7c5 5.g1f3 d8a5 -A42,A42,1.d2d4 d7d6 2.c2c4 -A42,English Rat,1.d2d4 d7d6 2.c2c4 e7e5 -A42,Lisbon Gambit,1.d2d4 d7d6 2.c2c4 e7e5 3.d4e5 b8c6 -A42,Randspringer Variation,1.d2d4 g7g6 2.c2c4 f8g7 3.b1c3 d7d6 4.e2e4 f7f5 -A43,Staunton Defense; Benoni C-G; A43,1.d2d4 c7c5 -A43,"Zilbermints Gambit; Nakamura Gambit, Benoni",1.d2d4 c7c5 2.b2b4 c5b4 -A43,Old Benoni,1.d2d4 c7c5 2.d4d5 d7d6 -A43,"Schmid Variation, Benoni",1.d2d4 c7c5 2.d4d5 d7d6 3.b1c3 g7g6 -A43,Franco-Benoni; Franco-Sicilian,1.d2d4 c7c5 2.d4d5 e7e6 3.e2e4 -A43,"Clarendon Court Variation, Benoni",1.d2d4 c7c5 2.d4d5 f7f5 -A43,Benoni-Staunton Gambit,1.d2d4 c7c5 2.d4d5 f7f5 3.e2e4 -A43,"Snail Variation, Benoni",1.d2d4 c7c5 2.d4d5 b8a6 -A43,Benoni-Indian Defense,1.d2d4 c7c5 2.d4d5 g8f6 -A43,"Woozle Defense, Benoni",1.d2d4 c7c5 2.d4d5 g8f6 3.b1c3 d8a5 -A43,"Kingside move order, Benoni",1.d2d4 c7c5 2.d4d5 g8f6 3.g1f3 -A43,"Habichd; Hawk Variation, Benoni",1.d2d4 c7c5 2.d4d5 g8f6 3.g1f3 c5c4 -A43,Benoni Gambit Accepted,1.d2d4 c7c5 2.d4c5 -A43,"Cormorant Gambit, Benoni",1.d2d4 c7c5 2.d4c5 b7b6 -A43,"Schlenker Defense, Benoni",1.d2d4 c7c5 2.d4c5 b8a6 -A43,Zilbermints-Benoni Gambit,1.d2d4 c7c5 2.g1f3 c5d4 3.b2b4 -A43,"Tamarkin Countergambit, Benoni",1.d2d4 c7c5 2.g1f3 c5d4 3.b2b4 e7e5 -A43,Franco-Sicilian Hybrid,1.d2d4 e7e6 2.c2c4 c7c5 3.d4d5 e6d5 4.c4d5 d7d6 5.b1c3 g7g6 6.e2e4 f8g7 7.g1f3 g8e7 -A44,"Pawn Thrust, Benoni; A44",1.d2d4 c7c5 2.d4d5 e7e5 -A44,Blockade Variation; Semi-Benoni; Russian Variation,1.d2d4 c7c5 2.d4d5 e7e5 3.e2e4 d7d6 -A45,Indian Defense; A45,1.d2d4 g8f6 -A45,Basque Opening,1.d2d4 g8f6 2.b2b3 -A45,Trompowsky; Opocensky; Ruth Opening,1.d2d4 g8f6 2.c1g5 -A45,"Poisoned Pawn Variation, Trompowsky",1.d2d4 g8f6 2.c1g5 c7c5 3.d4d5 d8b6 4.b1c3 -A45,Chepukaitis Gambit,1.d2d4 g8f6 2.c1g5 c7c5 3.d4d5 d8b6 4.b1c3 b6b2 5.g5d2 b2b6 -A45,"Borg Variation, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.g5f4 g7g5 -A45,"Edge Variation, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.g5h4 -A45,"Hergert Gambit #2, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.g5h4 c7c6 4.b1d2 d8a5 5.c2c3 e4d2 6.d1d2 d7d5 7.e2e4 -A45,"Hergert Gambit #1, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.g5h4 d7d5 4.f2f3 e4f6 5.b1c3 c8f5 6.e2e4 -A45,"Raptor Variation, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.h2h4 -A45,"Hergert Gambit, Trompowsky",1.d2d4 g8f6 2.c1g5 f6e4 3.h2h4 e4g5 4.h4g5 e7e5 -A45,Pawn Push Variation,1.d2d4 g8f6 2.d4d5 -A45,Omega Gambit,1.d2d4 g8f6 2.e2e4 -A45,Arafat Gambit,1.d2d4 g8f6 2.e2e4 f6e4 3.f1d3 e4f6 4.c1g5 -A45,Paleface Attack,1.d2d4 g8f6 2.f2f3 -A45,Webster Gambit,1.d2d4 g8f6 2.f2f3 c7c5 3.d4d5 e7e6 4.e2e4 e6d5 5.e4e5 -A45,Kraus-Muhlherr Counter Gambit,1.d2d4 g8f6 2.f2f3 d7d5 3.e2e4 e7e5 4.d4e5 f6e4 -A45,Gedult Attack,1.d2d4 g8f6 2.f2f3 d7d5 3.g2g4 -A45,Gedult-Gunderam System,1.d2d4 g8f6 2.f2f3 d7d5 3.g2g4 -A45,Linder Counter Gambit,1.d2d4 g8f6 2.f2f3 e7e6 3.e2e4 f6e4 -A45,Canard Attack,1.d2d4 g8f6 2.f2f4 -A45,Ueberlinger Gambit,1.d2d4 g8f6 2.g2g3 e7e5 -A45,Bullfrog; Weidenhagen; Krabbe; Ochsenfrosch,1.d2d4 g8f6 2.g2g4 -A45,Bronstein Gambit,1.d2d4 g8f6 2.g2g4 -A45,Oshima Defense,1.d2d4 g8f6 2.g2g4 e7e5 -A45,Gibbins-Wiedehagen Gambit Accepted,1.d2d4 g8f6 2.g2g4 f6g4 -A45,Stummer Gambit,1.d2d4 g8f6 2.g2g4 f6g4 3.e2e4 d7d6 4.f1e2 g4f6 5.b1c3 -A45,Maltese Falcon,1.d2d4 g8f6 2.g2g4 f6g4 3.f2f3 g4f6 4.e2e4 -A45,Reversed Chigorin Defense,1.d2d4 g8f6 2.b1c3 c7c5 -A45,Von Beivorseen,1.d2d4 g8f6 2.b1c3 c7c5 3.d4c5 -A45,Malich Gambit,1.d2d4 g8f6 2.b1c3 d7d5 3.c1g5 c7c5 4.g5f6 g7f6 5.e2e4 d5e4 6.d4d5 -A45,Huebsch Gambit,1.d2d4 g8f6 2.b1c3 d7d5 3.e2e4 f6e4 -A45,Maddigan Gambit,1.d2d4 g8f6 2.b1c3 e7e5 -A45,Lazard Gambit; Maddigan Gambit,1.d2d4 g8f6 2.b1d2 e7e5 -A46,"Knights Variation, Indian Game; A46",1.d2d4 g8f6 2.g1f3 -A46,Polish Defense,1.d2d4 g8f6 2.g1f3 b7b5 -A46,Spielmann-Indian,1.d2d4 g8f6 2.g1f3 c7c5 -A46,Pseudo-Benko Gambit,1.d2d4 g8f6 2.g1f3 c7c5 3.d4d5 b7b5 -A46,Czech-Indian,1.d2d4 g8f6 2.g1f3 c7c6 -A46,London System,1.d2d4 g8f6 2.g1f3 e7e6 3.c1f4 -A46,Torre Attack,1.d2d4 g8f6 2.g1f3 e7e6 3.c1g5 -A46,Petrosian Gambit,1.d2d4 g8f6 2.g1f3 e7e6 3.c1g5 c7c5 4.e2e3 b7b6 5.d4d5 -A46,Swiss; Wagner Gambit,1.d2d4 g8f6 2.g1f3 e7e6 3.c1g5 c7c5 4.e2e4 -A46,"Nimzovich Variation, Torre Attack",1.d2d4 g8f6 2.g1f3 e7e6 3.c1g5 h7h6 -A46,Yusupov-Rubinstein System,1.d2d4 g8f6 2.g1f3 e7e6 3.e2e3 -A46,Dory Defense,1.d2d4 g8f6 2.g1f3 f6e4 -A47,"Capablanca Variation, Indian Game; A47",1.d2d4 g8f6 2.g1f3 b7b6 -A47,Torre Attack,1.d2d4 g8f6 2.g1f3 b7b6 3.c1g5 -A47,Schnepper Gambit,1.d2d4 g8f6 2.g1f3 b7b6 3.c2c3 e7e5 -A47,Marienbad Variation,1.d2d4 g8f6 2.g1f3 b7b6 3.g2g3 c8b7 4.f1g2 c7c5 -A47,Berg Variation,1.d2d4 g8f6 2.g1f3 b7b6 3.g2g3 c8b7 4.f1g2 c7c5 5.c2c4 c5d4 6.d1d4 -A48,Pseudo-King's Indian Variation; A48,1.d2d4 g8f6 2.g1f3 g7g6 -A48,"London System, Torre Attack",1.d2d4 g8f6 2.g1f3 g7g6 3.c1f4 -A48,London Variation,1.d2d4 g8f6 2.g1f3 g7g6 3.c1f4 f8g7 4.b1d2 -A48,"Fianchetto Defense, Torre Attack",1.d2d4 g8f6 2.g1f3 g7g6 3.c1g5 -A48,"Euwe Variation, Torre Attack",1.d2d4 g8f6 2.g1f3 g7g6 3.c1g5 f8g7 4.b1d2 c7c5 -A48,King's Indian Variation,1.d2d4 g8f6 2.g1f3 g7g6 3.e2e3 f8g7 4.f1d3 d7d6 -A49,Przepiorka Variation; A49,1.d2d4 g8f6 2.g1f3 g7g6 3.g2g3 -A50,"Normal Variation, Indian Game; A50",1.d2d4 g8f6 2.c2c4 -A50,Pyrenees Gambit,1.d2d4 g8f6 2.c2c4 b7b5 -A50,Queen's Indian Defense; Saemisch-Indian,1.d2d4 g8f6 2.c2c4 b7b6 -A50,Medusa Gambit,1.d2d4 g8f6 2.c2c4 g7g5 -A50,Van Geet; Kevitz; Trajkovic; Mexican,1.d2d4 g8f6 2.c2c4 b8c6 -A50,Horsefly Gambit,1.d2d4 g8f6 2.c2c4 b8c6 3.d4d5 c6e5 4.f2f4 -A51,Budapest Defense; A51,1.d2d4 g8f6 2.c2c4 e7e5 -A51,"Fajarowicz Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6e4 -A51,"Bonsdorf Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6e4 4.a2a3 b7b6 -A51,"Steiner Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6e4 4.d1c2 -A52,"Normal Variation, Budapest; A52",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 -A52,"Rubinstein Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.c1f4 -A52,"Kornl Richter Gambit, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.c1f4 b8c6 5.g1f3 f8b4 6.b1c3 b4c3 -A52,"Center Play Variation, Budapest; Alekhine Variation",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 -A52,"Balogh; Tartakower C-G, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 d7d6 -A52,"Barmina Gambit, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 g4e5 5.f2f4 f8c5 -A52,"Wikstrom Gambit, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 g4e5 5.f2f4 b8c6 -A52,"Abonyi Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.e2e4 g4e5 5.f2f4 e5c6 -A52,"Adler Variation, Budapest",1.d2d4 g8f6 2.c2c4 e7e5 3.d4e5 f6g4 4.g1f3 -A53,Old Indian Defense; Chigorin Indian Defense; A53,1.d2d4 g8f6 2.c2c4 d7d6 -A53,Aged Gibbon Gambit,1.d2d4 g8f6 2.c2c4 d7d6 3.g2g4 -A53,"Janowski Variation, Old Indian",1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 c8f5 -A53,"Grinberg Gambit, Old Indian",1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 c8f5 4.e2e4 -A53,Ukranian Variation,1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 e7e5 -A53,Duz-Khotimirsky Variation,1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 b8d7 4.e2e3 e7e5 5.f1d3 -A53,Tartakower-Indian,1.d2d4 g8f6 2.c2c4 d7d6 3.g1f3 c8g4 -A54,"Two Knights Variation, Old Indian; A54",1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 e7e5 4.g1f3 -A55,"Normal Variation, Old Indian; A55",1.d2d4 g8f6 2.c2c4 d7d6 3.b1c3 e7e5 4.g1f3 b8d7 5.e2e4 -A56,"Vulture Defense, Benoni",1.d2d4 c7c5 2.d4d5 g8f6 3.c2c4 f6e4 -A56,Hromadka Defense; Loose Gambit: A56,1.d2d4 g8f6 2.c2c4 c7c5 -A56,"Hromadka System, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 d7d6 -A56,Lundin; Bronstein Counter-Gambit,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 d7d6 4.b1c3 g7g6 5.e2e4 b7b5 -A56,Petrosian System; Czech Benoni Defense,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e5 -A56,"Czech Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e5 4.b1c3 d7d6 5.e2e4 f8e7 -A56,"King's Indian System, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e5 4.b1c3 d7d6 5.e2e4 g7g6 -A56,Vulture Variation; Der Geier,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 f6e4 -A56,"Weenink Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4c5 e7e6 -A57,Benko Gambit; Volga; Opocensky; Vaitonis; A57,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 -A57,"Sosonko Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.a2a4 -A57,"Bishop Attack, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c1g5 -A57,Benko Gambit Accepted,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 -A57,"Pawn Return Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5b6 -A57,"Central Storming Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c8a6 6.b1c3 d7d6 7.f2f4 -A57,"Modern Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.e2e3 -A57,"Dlugy Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.f2f3 -A57,"Nescafe Frappe Attack, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b1c3 a6b5 6.e2e4 b5b4 7.c3b5 -A57,"Zaitsev Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b1c3 a6b5 6.e2e4 b5b4 7.c3b5 d7d6 8.g1f3 g7g6 9.f1c4 -A57,Benko Gambit Declined; Hjoerring Countergambit,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.e2e4 -A57,"Pseudo-Saemisch, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.f2f3 -A57,"Mutkin Countergambit, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.g2g4 -A57,"Quiet Line, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.b1d2 -A57,"Main Line, Benko Gambit Declined",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.g1f3 -A58,"Fully Accepted Variation, Benko Gambit; A58",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 -A58,"Fianchetto Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c8a6 6.b1c3 g7g6 7.g1f3 d7d6 8.g2g3 f8g7 9.f1g2 -A59,A59,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c8a6 6.b1c3 d7d6 7.e2e4 -A59,"King Walk Variation, Benko Gambit",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c8a6 6.b1c3 d7d6 7.e2e4 a6f1 8.e1f1 g7g6 9.g2g3 f8g7 10.f1g2 e8g8 -A60,"Tal Variation, Modern Variation, Benoni; A60",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 -A60,Modern Benoni,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 -A61,A61,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 -A61,"Snake Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 f8d6 -A61,"Uhlmann Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.c1g5 -A61,"Nimzovich Variation, Knight's Tour Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.f3d2 -A62,A62,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 -A62,"Fianchetto Variation, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 f8g7 8.f1g2 -A62,"Hastings Defense, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 f8g7 8.f1g2 e8g8 9.e1g1 b8d7 -A63,A63,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 f8g7 8.f1g2 e8g8 9.e1g1 a7a6 -A64,A64,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.g1f3 g7g6 7.g2g3 f8g7 8.f1g2 e8g8 9.e1g1 a7a6 10.a2a4 b8d7 11.f3d2 -A65,"King Pawn lines, Benoni; A65",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 -A66,"Pawn Storm Variation, Benoni; A66",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 -A66,"Mikenas V, Benoni",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 f8g7 8.e4e5 -A67,"Taimanov Variation, Benoni; A67",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 f8g7 8.f1b5 -A68,A68,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 f8g7 8.g1f3 -A69,A69,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.f2f4 f8g7 8.g1f3 e8g8 9.f1e2 f8e8 -A70,"Classical Variation, Benoni; A70",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 -A71,A71,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.c1g5 -A72,A72,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 -A73,A73,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 -A74,A74,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 a7a6 -A75,"Argentine Attack, Benoni; A75",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 a7a6 10.a2a4 c8g4 -A76,"Czerniak Defesne, Benoni; A76",1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 f8e8 -A77,A77,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 f8e8 10.f3d2 -A78,A78,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 f8e8 10.f3d2 b8a6 -A79,A79,1.d2d4 g8f6 2.c2c4 c7c5 3.d4d5 e7e6 4.b1c3 e6d5 5.c4d5 d7d6 6.e2e4 g7g6 7.g1f3 f8g7 8.f1e2 e8g8 9.e1g1 f8e8 10.f3d2 b8a6 11.f2f3 -A80,Dutch Defense; A80,1.d2d4 f7f5 -A80,"Seneschaud Gambit, Dutch",1.d2d4 f7f5 2.c1f4 e7e6 3.g2g4 -A80,"Hopton Attack, Dutch",1.d2d4 f7f5 2.c1g5 -A80,"Blackmar's Second Gambit, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.f2f3 -A80,"Lisbon Gambit, Dutch; Krejcik Gambit",1.d2d4 f7f5 2.g2g4 -A80,"Hevendehl Gambit, Dutch",1.d2d4 f7f5 2.g2g4 e7e5 -A80,"Tate Gambit, Dutch",1.d2d4 f7f5 2.g2g4 f5g4 3.e2e4 d7d5 4.b1c3 -A80,"Korchnoi's Variation, Dutch",1.d2d4 f7f5 2.h2h3 -A80,"Janzen-Korchnoi Gambit, Dutch",1.d2d4 f7f5 2.h2h3 g8f6 3.g2g4 -A80,"Raphael Variation, Dutch",1.d2d4 f7f5 2.b1c3 -A80,"Kingfisher Gambit, Dutch",1.d2d4 f7f5 2.b1c3 d7d5 3.e2e4 -A80,"Spielmann Gambit, Dutch",1.d2d4 f7f5 2.b1c3 g8f6 3.g2g4 -A80,"Barcza Variation, Dutch",1.d2d4 f7f5 2.g1f3 g8f6 3.c2c3 -A80,"Anti-Stonewall, Dutch",1.d2d4 f7f5 2.d1d3 d7d5 3.g2g4 -A80,"Anti-Modern, Dutch",1.d2d4 f7f5 2.d1d3 d7d6 3.g2g4 -A80,"Anti-Classical Line, Dutch",1.d2d4 f7f5 2.d1d3 e7e6 3.g2g4 -A80,"Anti-Leningrad Variation, Dutch",1.d2d4 f7f5 2.d1d3 g7g6 3.g2g4 -A80,"Manhattan Gambit, Dutch",1.d2d4 f7f5 2.d1d3 g8f6 3.g2g4 -A80,"Pretzel Gambit, Dutch",1.d2d4 f7f5 2.d1d3 g8f6 3.g2g4 -A81,"Dutch Indian; Leningrad Variation, Dutch; A81",1.d2d4 f7f5 2.g2g3 -A81,"Basman Variation, Dutch",1.d2d4 f7f5 2.g2g3 g7g6 3.f1g2 f8g7 4.g1f3 c7c6 5.e1g1 g8h6 -A81,"Carlsbad Variation, Dutch",1.d2d4 f7f5 2.g2g3 g7g6 3.f1g2 f8g7 4.g1h3 -A81,"Antoshin-Hort Variation, Dutch",1.d2d4 f7f5 2.g2g3 g8f6 3.f1g2 d7d6 -A81,"Ilyin-Genevsky Variation, Dutch",1.d2d4 f7f5 2.g2g3 g8f6 3.f1g2 e7e6 4.g1f3 f8e7 5.e1g1 e8g8 6.c2c4 d7d6 -A81,"Blackburne Variation, Dutch",1.d2d4 f7f5 2.g2g3 g8f6 3.f1g2 e7e6 4.g1h3 -A81,"Semi-Leningrad Variation, Dutch",1.d2d4 f7f5 2.g2g3 g8f6 3.f1g2 g7g6 -A82,"Balogh Defense, Dutch",1.d2d4 f7f5 2.e2e4 d7d6 -A82,"Staunton Gambit Accepted, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 -A82,"Tartakower Variation, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.g2g4 -A82,"American Gambit, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1d2 -A83,"General Variation, Staunton Gambit, Dutch; A83",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.c1g5 -A83,"Nimzovich Variation, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.c1g5 b7b6 -A83,"Chigorin Variation, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.c1g5 c7c6 -A83,"Lasker Variation, Dutch",1.d2d4 f7f5 2.e2e4 f5e4 3.b1c3 g8f6 4.c1g5 g7g6 5.f2f3 -A84,"Slav Stonewall, Dutch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.e2e3 f7f5 -A84,Bellon Gambit,1.d2d4 e7e6 2.c2c4 f7f5 3.e2e4 -A84,A84,1.d2d4 f7f5 2.c2c4 -A84,"Classical Variation, Dutch",1.d2d4 f7f5 2.c2c4 e7e6 -A84,"Bellon Gambit, Dutch",1.d2d4 f7f5 2.c2c4 e7e6 3.e2e4 -A84,"Rubinstein Variation, Dutch",1.d2d4 f7f5 2.c2c4 e7e6 3.b1c3 -A84,"Queen's Knight Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.b1c3 -A84,"Krause Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.b1c3 d7d6 4.g1f3 b8c6 -A85," ",1.d2d4 f7f5 2.c2c4 g7g6 3.b1c3 -A85,"Bladel Variation, Dutch",1.d2d4 f7f5 2.c2c4 g7g6 3.b1c3 g8h6 -A85,"Normal Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 -A85,"Ozol Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.c1g5 -A86,"Fianchetto Variation, Dutch; A86",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 -A86,"Leningrad Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 -A87,A87,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 -A87,"Fluid Formation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 d7d6 -A88,"Warsaw Variation, Dutch; A88",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 c7c6 -A89,"Matulovic Variation, Dutch; A89",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 g7g6 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 b8c6 -A90,A90,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 -A90,"Classical Variation, Dutch�",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 -A90,Nimzo-Dutch Variation,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8b4 -A91,A91,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 -A91,"Botvinnik-Bronstein Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.b1c3 e8g8 6.e2e3 -A92,A92,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 -A92,"Alekhine Variation, Dutch",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 f6e4 -A93,"Botvinnik Variation, Dutch; A93",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d5 7.b2b3 -A94,A94,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d5 7.b2b3 c7c6 -A95,A95,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d5 7.b1c3 -A96,A96,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d6 -A97,"Ilyin-Zhenevsky Variation, Dutch; A97",1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 d8e8 -A98,A98,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 d8e8 8.d1c2 -A99,A99,1.d2d4 f7f5 2.c2c4 g8f6 3.g2g3 e7e6 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 d7d6 7.b1c3 d8e8 8.b2b3 -B00,Ware Defense,1.e2e4 a7a5 -B00,Corn Stalks,1.e2e4 a7a5 -B00,Snagkeouss Defense,1.e2e4 a7a5 2.d2d4 b8c6 -B00,San Jorge Variation,1.e2e4 a7a6 2.d2d4 b7b5 3.g1f3 c8b7 4.f1d3 d7d6 5.e1g1 g7g6 6.c2c3 f8g7 -B00,"Polish Variation, St George Defense",1.e2e4 a7a6 2.d2d4 b7b5 3.g1f3 c8b7 4.f1d3 e7e6 -B00,"Zilbermints Gambit, St George Defense",1.e2e4 a7a6 2.d2d4 e7e5 -B00,San Jorge Variation,1.e2e4 a7a6 2.d2d4 e7e6 -B00,"Three Pawn Attack, St George",1.e2e4 a7a6 2.d2d4 e7e6 3.c2c4 -B00,"Sanky-Georg Gambit, St George",1.e2e4 a7a6 2.d2d4 e7e6 3.c2c4 b7b5 -B00,"Woodchuck Variation, St George",1.e2e4 a7a6 2.d2d4 b8c6 -B00,Owen's Defense; Greek Defense,1.e2e4 b7b6 -B00,Guatemalan Defense,1.e2e4 b7b6 2.d2d4 c8a6 -B00,Matovinsky Gambit,1.e2e4 b7b6 2.d2d4 c8b7 3.f1d3 f7f5 -B00,Matovinsky Gambit,1.e2e4 b7b6 2.d2d4 c8b7 3.f1d3 f7f5 4.e4f5 b7g2 5.d1h5 g7g6 -B00,"Naselwaus Variation, Owen's Defense",1.e2e4 b7b6 2.d2d4 c8b7 3.c1g5 -B00,"Wind Gambit, Owen Defense",1.e2e4 b7b6 2.d2d4 c8b7 3.f2f3 e7e5 -B00,"Smith Gambit, Owen Defense",1.e2e4 b7b6 2.d2d4 c8b7 3.g1f3 -B00,"Hekili-Loa Gambit, Owen Defense",1.e2e4 b7b6 2.d2d4 c7c5 3.d4c5 b8c6 -B00,Mao Tse Tung; Duras,1.e2e4 f7f5 -B00,Fred; From Reversed,1.e2e4 f7f5 -B00,Tiers Counter-Gambit,1.e2e4 f7f5 -B00,Barnes Defense,1.e2e4 f7f6 -B00,Basman Defense; Macho Grob,1.e2e4 g7g5 -B00,Borg Gambit,1.e2e4 g7g5 2.d2d4 f8g7 -B00,"Zilbermints Gambit, Borg",1.e2e4 g7g5 2.d2d4 e7e5 -B00,Borg Defense; Troon Gambit,1.e2e4 g7g5 2.d2d4 h7h6 3.h2h4 g5g4 -B00,Pickering (Goldsmith) Defense,1.e2e4 h7h5 -B00,Picklepuss Defense,1.e2e4 h7h5 2.d2d4 g8f6 -B00,Carr Defense,1.e2e4 h7h6 -B00,"Zilbermints Gambit, Carr Defense",1.e2e4 h7h6 2.d2d4 e7e5 -B00,Lemming Defense,1.e2e4 b8a6 -B00,Nimzovich Defense,1.e2e4 b8c6 -B00,"Wheeler Gambit, Nimzovich Defense",1.e2e4 b8c6 2.b2b4 c6b4 3.c2c3 b4c6 4.d2d4 -B00,Pseudo-Spanish Variation,1.e2e4 b8c6 2.f1b5 -B00,"Scandanavian Variation, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 -B00,"Hornung Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.c1e3 -B00,"Aachen Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.e4d5 c6b4 -B00,"Marshall Gambit, Nimzovich",1.e2e4 b8c6 2.d2d4 d7d5 3.e4d5 d8d5 4.b1c3 -B00,"Bogoljubow Variation, Nizovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 -B00,"Brandics Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 a7a6 -B00,"Richter Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 d5e4 4.d4d5 c6b8 5.f2f3 -B00,"Nimzovich Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 d5e4 4.d4d5 c6e5 -B00,"Alekseev Variation, Nimzovich; Heinola-Deppe Gambit",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 e7e5 -B00,"Erben Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 g7g6 -B00,"Vehre Variation, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d5 3.b1c3 g8f6 -B00,"Mikenas Variation, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 d7d6 -B00,"Kennedy Variation, Nimzovich",1.e2e4 b8c6 2.d2d4 e7e5 -B00,"Linksspringer Variation, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4d5 -B00,"Bileefelder Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 f8c5 -B00,"Burgar Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 d7d6 -B00,"Hammer Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 f7f6 -B00,"Riemann Defense, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 c6e5 4.f2f4 e5c6 -B00,"Keres Attack, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 c6e5 4.b1c3 -B00,"Paulsen Attack, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 c6e5 4.g1f3 -B00,"Herford Gambit, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e5 3.d4e5 d8h4 -B00,"French Connection, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 e7e6 -B00,"Neo-Mongoloid Defense, Nimzovich",1.e2e4 b8c6 2.d2d4 f7f6 -B00,"Pirc Connection, Nimzovich Defense",1.e2e4 b8c6 2.d2d4 g7g6 -B00,"Breyer Defense, Nimzovich",1.e2e4 b8c6 2.b1c3 g8f6 -B00,"Williams Variation, Nimzovich",1.e2e4 b8c6 2.g1f3 d7d6 -B00,Franco-Nimzovich Variation,1.e2e4 b8c6 2.g1f3 e7e6 -B00,"Colorado Defense, Nimzovich; Lean Variation",1.e2e4 b8c6 2.g1f3 f7f5 -B00,"Colorado Counter Accepted, Nimzovich Defense",1.e2e4 b8c6 2.g1f3 f7f5 3.e4f5 -B00,"El Columpio Defense, Nimzovich Defense",1.e2e4 b8c6 2.g1f3 g8f6 3.e4e5 f6g4 -B00,Adams Defense,1.e2e4 g8h6 -B00,Wild Bull Defense,1.e2e4 g8h6 -B01,Center Counter; Scandanavian; B01,1.e2e4 d7d5 -B01,"Zilbermints Gambit, Center Counter",1.e2e4 d7d5 2.b2b4 -B01,"Blackbunre-Kloosterboer Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 c7c6 3.d5c6 e7e5 -B01,"Atkinson (Kloosterboer) Variation, Center Counter",1.e2e4 d7d5 2.e4d5 c7c6 3.d5c6 e7e5 -B01,"Blackburne Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 c7c6 3.d5c6 b8c6 -B01,"Boehnke Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 e7e5 -B01,"Boehnke Gambit Accepted, Center Counter",1.e2e4 d7d5 2.e4d5 e7e5 3.d5e6 c8e6 -B01,"Panov Transfer, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.c2c4 c7c6 -B01,"Icelandic-Palme Gambit, CC",1.e2e4 d7d5 2.e4d5 g8f6 3.c2c4 e7e6 -B01,"Portuguese Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 c8g4 -B01,"Portuguese Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 c8g4 4.f2f3 g4f5 5.f1b5 b8d7 -B01,"Kadas Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 c7c6 4.d5c6 e7e5 -B01,"Wing Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 g7g6 4.c2c4 b7b5 -B01,"Marshall Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 -B01,"Kiel Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 4.c2c4 d5b4 -B01,"Tomalty Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 4.c2c4 d5f6 5.b1c3 c7c5 -B01,"Gipslis Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 4.g1f3 c8g4 -B01,"Richter Variation, Center Counter",1.e2e4 d7d5 2.e4d5 g8f6 3.d2d4 f6d5 4.g1f3 g7g6 -B01,"Mieses-Kotroc Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 -B01,"Leonhardt (Rosen) Gambit, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.b2b4 -B01,"Anderssen Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 e7e5 -B01,"Collijn Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 e7e5 5.g1f3 c8g4 -B01,"Mieses Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 g8f6 -B01,"Gruenfeld Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 g8f6 5.g1f3 c8f5 6.f3e5 c7c6 7.g2g4 -B01,"Lasker Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5a5 4.d2d4 g8f6 5.g1f3 c8g4 6.h2h3 -B01,"Gubinsky-Melts Defense, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5d6 -B01,"Schiller-Pytel Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5d6 4.d2d4 c7c6 -B01,"Bronstein Variation, Center Counter",1.e2e4 d7d5 2.e4d5 d8d5 3.b1c3 d5d6 4.d2d4 g8f6 5.g1f3 a7a6 -B01,Closed Scandavian,1.e2e4 d7d5 2.b1c3 -B02,"Fried Fox, Alekhine; Krejcik Gambit",1.e2e4 g8f6 2.f1c4 f6e4 3.c4f7 -B02,"Maroczy Variation, Alekhine",1.e2e4 g8f6 2.d2d3 -B02,"Welling Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.b2b3 -B02,"Kmoch Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.f1c4 d5b6 4.c4b3 c7c5 5.d2d3 -B02,"Hunt Gambit, Alekhine; Two Pawn Attack",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 -B02,"Steiner Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 d5b6 4.b2b3 -B02,"Lasker Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 d5b6 4.c4c5 -B02,"Mikenas Gambit, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 d5b6 4.c4c5 b6d5 5.f1c4 e7e6 6.b1c3 d7d6 7.c3d5 e6d5 8.c4d5 -B02,"Matsukevich Gambit, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.c2c4 d5b6 4.c4c5 b6d5 5.b1c3 d5c3 6.d2c3 d7d6 7.c1g5 -B02,"Buntin Gambit, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.e5e6 -B02,"Buckley Attack, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.b1a3 -B02,"Saemisch Attack, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.b1c3 -B02,Mokele Mbembe; Knight's Tour,1.e2e4 g8f6 2.e4e5 f6e4 -B02,"Retreat; Brooklyn Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6g8 -B02,"Everglades Defense, Alekhine",1.e2e4 g8f6 2.e4e5 f6g8 3.d2d4 f7f5 -B02,"Scandanavian Variation, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 -B02,"Myers Gambit, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 3.d2d3 d5e4 4.c1g5 -B02,"Spielmann Variation, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 3.e4e5 f6d7 4.e5e6 -B02,"Noch Gambit, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 3.e4d5 -B02,"Geschev Gambit, Alekhine",1.e2e4 g8f6 2.b1c3 d7d5 3.e4d5 c7c6 -B02,"John Tracy Gambit, Alekhine",1.e2e4 g8f6 2.g1f3 -B03,B03,1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 -B03,"Wall Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 c7c5 -B03,"Balogh Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.f1c4 -B03,"Hunt Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.c2c4 d5b6 5.c4c5 -B03,Four Pawns Attack; Chase V,1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.c2c4 d5b6 5.f2f4 -B03,"Trifunovic Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.c2c4 d5b6 5.f2f4 c8f5 -B03,"Cambridge Gambit, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.c2c4 d5b6 5.f2f4 g7g5 -B04,B04,1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 -B04,"Panov Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 c8g4 5.h2h3 -B04,"Larsen Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 d6e5 -B04,"Alburt Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 g7g6 -B04,"Keres Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 g7g6 5.f1c4 d5b6 6.c4b3 f8g7 7.a2a4 -B04,"Karpov Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 g7g6 5.c2c4 d5b6 6.h2h3 f8g7 7.f1e2 -B04,"Schmid Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 d5b6 -B05,B05,1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 c8g4 -B05,"Flohr Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 c8g4 5.f1e2 c7c6 -B05,"Alekhine Variation, Alekhine",1.e2e4 g8f6 2.e4e5 f6d5 3.d2d4 d7d6 4.g1f3 c8g4 5.c2c4 -B06,Pirc; Robatsch; Modern; King Pawn Fianchetto; B06,1.e2e4 g7g6 -B06,"Monkey's Bum, Pirc",1.e2e4 g7g6 2.f1c4 f8g7 3.d1f3 e7e6 4.d2d4 -B06,Bishop Attack,1.e2e4 g7g6 2.d2d4 f8g7 3.f1c4 -B06,Buecker Gambit,1.e2e4 g7g6 2.d2d4 f8g7 3.f1c4 b7b5 -B06,Westermann Gambit,1.e2e4 g7g6 2.d2d4 f8g7 3.c1d2 -B06,Wind Gambit,1.e2e4 g7g6 2.d2d4 f8g7 3.f1d3 -B06,Three Pawns Attack,1.e2e4 g7g6 2.d2d4 f8g7 3.f2f4 -B06,"Pterodactyl, Pirc",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 c7c5 -B06,"Gurgenidze Defense, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 c7c6 4.f2f4 d7d5 5.e4e5 h7h5 -B06,"Mittenberger Gambit, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d5 -B06,Anti-Modern,1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d6 4.f1c4 c7c6 5.d1e2 -B06,Pseudo-Austrian Attack,1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d6 4.f2f4 -B06,"Two Knight Variation, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d6 4.g1f3 -B06,"Suttles Variation, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.b1c3 d7d6 4.g1f3 c7c6 -B06,"Mongredien Defense, Pirc",1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 b7b6 -B06,"Geller's System, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 d7d6 4.c2c3 -B06,"Rossolimo Variation, Modern Defense",1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 d7d6 4.c2c4 c8g4 -B06,Accelerated Gurgenidze,1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 d7d6 4.b1c3 c7c6 -B06,"Small Center Variation, Pirc",1.e2e4 g7g6 2.d2d4 f8g7 3.g1f3 d7d6 4.b1c3 e7e6 -B06,"Fianchetto Gambit, Modern Defense",1.e2e4 g7g6 2.d2d4 f7f5 -B06,Norwegian Defense,1.e2e4 g7g6 2.d2d4 g8f6 -B06,Masur Gambit,1.e2e4 g7g6 2.d2d4 g8h6 3.b1c3 f7f5 4.c1h6 f8h6 5.e4f5 e8g8 -B07,B07,1.e2e4 d7d6 -B07,"Maroczy Defense, Pirc",1.e2e4 d7d6 2.d2d4 e7e5 -B07,"Philidor Gambit, Pirc",1.e2e4 d7d6 2.d2d4 e7e5 3.d4e5 c8d7 -B07,Small Center Defense,1.e2e4 d7d6 2.d2d4 e7e6 -B07,"Balogh Defense, Pirc",1.e2e4 d7d6 2.d2d4 f7f5 -B07,Pirc Defense,1.e2e4 d7d6 2.d2d4 g8f6 -B07,"Lion's Jaw, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.f2f3 -B07,Czech Defense,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 c7c6 -B07,Pirc; Ufimtsev; Antal Defense,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 -B07,"Kholmov System, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f1c4 -B07,"Classical System, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f1e2 -B07,"Chinese Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f1e2 f8g7 5.g2g4 -B07,"Bayonet Attack, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f1e2 f8g7 5.h2h4 -B07,"Sveshnikov-Jansa Attack, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.c1e3 c7c6 5.h2h3 -B07,150 Attack,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.c1e3 c7c6 5.d1d2 -B07,"Panov; Opatijav; Byrne Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.c1g5 -B07,Anti-Philidor,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 b8d7 4.f2f4 -B07,"Roscher Gambit, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.g1f3 -B08,B08,1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 -B08,"Quiet System, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.f1e2 -B08,"Parma Defense, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.f1e2 e8g8 6.e1g1 c8g4 -B08,"Czech Defense, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.f1e2 e8g8 6.e1g1 c7c6 -B08,"Chigorin Line, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.f1e2 e8g8 6.e1g1 b8c6 -B08,"Schlechter Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.g1f3 f8g7 5.h2h3 -B09,"Austrian Attack, Pirc; B09",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 -B09,"Ljubojevic Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.f1c4 -B09,"Austrian; Yugoslav Defense, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 -B09,"Dragon Formation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 c7c5 -B09,"Weiss Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 e8g8 6.f1d3 -B09,"Kurajica Variation, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 e8g8 6.c1e3 -B09,"Unzicker Attack, Pirc",1.e2e4 d7d6 2.d2d4 g8f6 3.b1c3 g7g6 4.f2f4 f8g7 5.g1f3 e8g8 6.e4e5 -B10,"Hillbilly Attack, Caro-Kann",1.e2e4 c7c6 2.f1c4 -B10,"Modern; English Variation, Accelerated Panov; Caro-Kann",1.e2e4 c7c6 2.c2c4 -B10,"Breyer Variation, Caro-Kann",1.e2e4 c7c6 2.d2d3 -B10,"Stein Attack, Caro-Kann",1.e2e4 c7c6 2.d2d3 d7d5 3.b1d2 g7g6 4.g2g3 f8g7 5.f1g2 e7e5 6.g1f3 g8e7 7.e1g1 e8g8 8.b2b4 -B10,"Massachussets Defense, Caro-Kann",1.e2e4 c7c6 2.d2d4 f7f5 -B10,"Masi Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 g8f6 -B10,"Scorpion-Horus Gambit, Caro-Kann",1.e2e4 c7c6 2.b1c3 d7d5 3.d2d3 d5e4 4.c1g5 -B10,"Goldman Variation, Caro",1.e2e4 c7c6 2.b1c3 d7d5 3.d1f3 -B10,"Two Knights Variation, Caro",1.e2e4 c7c6 2.g1f3 d7d5 3.b1c3 -B11,B11,1.e2e4 c7c6 2.b1c3 -B11,"Two Knights Attack, Caro Kann",1.e2e4 c7c6 2.b1c3 d7d5 3.g1f3 -B11,"Mindeno Variation, Caro-Kann",1.e2e4 c7c6 2.b1c3 d7d5 3.g1f3 c8g4 -B11,"Retreat Line, Mindeno Variation, Caro-Kann",1.e2e4 c7c6 2.b1c3 d7d5 3.g1f3 c8g4 4.h2h3 g4h5 -B12,B12,1.e2e4 c7c6 2.d2d4 -B12,"Landau Gambit, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.f1d3 g8f6 4.e4e5 f6d7 5.e5e6 -B12,"Mieses Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.c1e3 -B12,"Diemer-Duhm Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.c2c4 -B12,"Prins Attack, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.b2b4 -B12,"Bayonet Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.g2g4 -B12,"Tal Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.h2h4 -B12,"Van der Wiel Attack, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.b1c3 -B12,"Dreyev Defense, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.b1c3 d8b6 -B12,"Bronstein Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.g1e2 -B12,"Short Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c8f5 4.g1f3 -B12,"Botvinnik-Carls Defense, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4e5 c6c5 -B12,"Maroczy Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.f2f3 -B12,"Fantasy; Lilienfisch Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.f2f3 -B12,"Maroczy Gambit, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.f2f3 d5e4 4.f3e4 e7e5 5.g1f3 e5d4 6.f1c4 -B12,"Modern Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1d2 -B12,New Caro-Kann,1.e2e4 c7c6 2.d2d4 d7d5 3.b1d2 g7g6 -B12,"Edinburgh Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1d2 d8b6 -B12,"Ulysses Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.g1f3 d5e4 4.f3g5 -B12,"De Bruycker Defense, Caro",1.e2e4 c7c6 2.d2d4 b8a6 -B12,"Hector Gambit, Caro",1.e2e4 c7c6 2.b1c3 d7d5 3.g1f3 d5e4 4.f3g5 -B13,"Exchange Variation, Caro; B13",1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 -B13,Panov-Botvinnik; Gunderam Attack,1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 -B14,B14,1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 g8f6 5.b1c3 -B14,"Carlsbad Line, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 -B14,"Czerniak Line, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 g8f6 5.b1c3 b8c6 6.c1g5 d8a5 -B14,"Reifir-Spielmann Line, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.e4d5 c6d5 4.c2c4 g8f6 5.b1c3 b8c6 6.c1g5 d8b6 -B15,B15,1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 -B15,"Gurgenidze Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 b7b5 -B15,"Von Hennig Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.f1c4 -B15,"Milner-Barry Gambit, Caro; Rasa-Studier Gambit",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.f2f3 -B15,"Knight Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 -B15,"Tarrasch (Alekhine) Gambit, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 5.f1d3 -B15,"Tartakower Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 5.e4f6 e7f6 -B15,"Forgacs Variation, Caro Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 5.e4f6 e7f6 6.f1c4 -B15,"Gurgenidze System, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 g7g6 -B15,"Gurgenidze Variation, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 g7g6 4.e4e5 f8g7 5.f2f4 h7h5 -B15,"Campomanes Attack, Caro",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 g8f6 -B16,"Finnish Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 h7h6 -B16,"Nimzovich; Bronstein-Larsen, Caro; B16",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 g8f6 5.e4f6 g7f6 -B17,"Karpov Variation, Caro-Kann; B17",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 -B17,"Smyslov Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.f1c4 g8f6 6.e4g5 e7e6 7.d1e2 d7b6 -B17,"Tiviakov-Fischer Attack, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.f1c4 g8f6 6.e4f6 d7f6 -B17,"Kasparov Attack, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.g1f3 g8f6 6.e4g3 -B17,"Ivanchuk Defense, Caro Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.e4g5 d7f6 -B18,"Classical Variation, Caro; B18",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 c8f5 -B18,"Flohr Variation, Caro-Kann",1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 c8f5 5.e4g3 f5g6 6.g1h3 -B19,B19,1.e2e4 c7c6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 c8f5 5.e4g3 f5g6 6.h2h4 h7h6 7.g1f3 -B20,"Mengarini Gambit, Sicilian",1.e2e4 c7c5 2.a2a3 b8c6 3.b2b4 -B20,"Snyder Variation, Sicilian",1.e2e4 c7c5 2.b2b3 -B20,"Queen Fianchetto Variation, Sicilian",1.e2e4 c7c5 2.b2b3 b7b6 -B20,"Wing Gambit, Sicilian",1.e2e4 c7c5 2.b2b4 -B20,"Wing; Carlsbad Variation, Sicilian",1.e2e4 c7c5 2.b2b4 c5b4 3.a2a3 b4a3 -B20,"Marienbad Variation, Sicilian",1.e2e4 c7c5 2.b2b4 c5b4 3.a2a3 d7d5 4.e4d5 d8d5 5.c1b2 -B20,"Abrahams Variation, Sicilian Wing Gambit",1.e2e4 c7c5 2.b2b4 c5b4 3.c1b2 -B20,"Santasiere Wing Gambit, Sicilian",1.e2e4 c7c5 2.b2b4 c5b4 3.c2c4 -B20,"Bowlder Attack, Sicilian",1.e2e4 c7c5 2.f1c4 -B20,Slow Sicilian,1.e2e4 c7c5 2.f1e2 -B20,"Gloria Variation, Sicilian",1.e2e4 c7c5 2.c2c4 d7d6 3.b1c3 b8c6 4.g2g3 h7h5 -B20,"Chameleon Variation, Sicilian",1.e2e4 c7c5 2.d2d3 -B20,"Big Clamp Variation, Sicilian",1.e2e4 c7c5 2.d2d3 b8c6 3.c2c3 d7d6 4.f2f4 -B20,Sicilian Center Game,1.e2e4 c7c5 2.d2d4 c5d4 -B20,"Smith-Morra; Fleissig Gambit, Sic",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 -B20,"Rivadavia Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 -B20,"Push Variation, Smith-Morra Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4d3 -B20,"Dubois Variation, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4d3 4.c3c4 -B20,"Scandanavian Formation, Smith-Morra, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d7d5 -B20,"Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 -B20,"Chicago Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 d7d6 5.f1c4 e7e6 6.g1f3 g8f6 7.e1g1 a7a6 -B20,"Taimanov Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 e7e6 5.f1c4 a7a6 6.g1f3 g8e7 -B20,"Kan Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 e7e6 5.g1f3 a7a6 -B20,"Fianchetto Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 e7e6 5.g1f3 g7g6 -B20,"Classical Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 d7d6 6.f1c4 a7a6 7.e1g1 g8f6 -B20,"Scheveningen Formation, Smith-Morra Accepted",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 d7d6 6.f1c4 e7e6 -B20,"Paulsen Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 a7a6 -B20,"Morphy Defense Deferred, Smith-Morra Accepted",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 a7a6 7.e1g1 b7b5 8.c4b3 f8c5 -B20,"Larsen Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 a7a6 7.e1g1 d8c7 8.d1e2 f8d6 -B20,"Pin Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 f8b4 -B20,"Morphy Defense, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 f8c5 -B20,"Sozin Formation, Smith-Morra Accepted, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d4c3 4.b1c3 b8c6 5.g1f3 e7e6 6.f1c4 d7d6 7.e1g1 a7a6 8.d1e2 b7b5 -B20,"Center Formation, Smith-Morra Declined, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 e7e5 -B20,"Alapin Formation, Smith-Morra Declined, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 g8f6 -B20,"Wing Formation, Smith-Morra Declined, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.c2c3 d8a5 -B20,"Halasz Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.f2f4 -B20,"Morphy Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.g1f3 -B20,"Andreaschek Gambit, Sicilian",1.e2e4 c7c5 2.d2d4 c5d4 3.g1f3 e7e5 4.c2c3 -B20,"Steinitz; Tartakower, Lasker-Dunne Variation, Sicilian",1.e2e4 c7c5 2.g2g3 -B20,"Myers Attack, Sicilian",1.e2e4 c7c5 2.h2h4 -B20,King David's Opening,1.e2e4 c7c5 2.e1e2 -B20,"Keres; Billium Attack, Sicilian; Chameleon",1.e2e4 c7c5 2.g1e2 -B20,"Brick Variation, Sicilian",1.e2e4 c7c5 2.g1h3 -B21,"Larsen-Santasiere (McDonnell Attack) Variation, Sicilian; B21",1.e2e4 c7c5 2.f2f4 -B21,"Tal Gambit, Sicilian",1.e2e4 c7c5 2.f2f4 d7d5 3.e4d5 g8f6 -B22,"Alapin; Sveshnikov Var, Sicilian; B22",1.e2e4 c7c5 2.c2c3 -B22,"Barmen Defense, Sicilian",1.e2e4 c7c5 2.c2c3 d7d5 3.e4d5 d8d5 -B22,"Sherzer Variation, Sicilian",1.e2e4 c7c5 2.c2c3 g8f6 3.e4e5 f6d5 4.d2d4 e7e6 5.g1f3 b8c6 -B22,"Stoltz Attack, Sicilian",1.e2e4 c7c5 2.c2c3 g8f6 3.e4e5 f6d5 4.g1f3 b8c6 5.f1c4 d5b6 6.c4b3 -B23,"Closed; Chigorin Variation, Sicilian; B23",1.e2e4 c7c5 2.b1c3 -B23,"Grand Prix Variation, Sicilian",1.e2e4 c7c5 2.b1c3 d7d6 3.f2f4 -B23,"Marshall Gambit, Sicilian",1.e2e4 c7c5 2.b1c3 e7e6 3.d2d4 d7d5 -B23,"Korchnoi Defense, Sicilian",1.e2e4 c7c5 2.b1c3 e7e6 3.g2g3 d7d5 -B23,Traditional Closed Sicilian,1.e2e4 c7c5 2.b1c3 b8c6 -B23,"Portland Attack, Sicilian",1.e2e4 c7c5 2.b1c3 b8c6 3.d2d3 g7g6 4.g2g4 -B23,"Vinken System, Sicilian; Grand Prix Attack",1.e2e4 c7c5 2.b1c3 b8c6 3.f2f4 -B23,"Schofman Variation, Sicilian",1.e2e4 c7c5 2.b1c3 b8c6 3.f2f4 g7g6 4.g1f3 f8g7 5.f1c4 e7e6 6.f4f5 -B23,Chameleon Sicilian,1.e2e4 c7c5 2.b1c3 b8c6 3.g1e2 -B24,"Fianchetto Variation, Sicilian Closed; B24",1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 -B25,B25,1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 -B25,"Botvinnik Defense, Sicilian Closed",1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.f2f4 e7e5 -B25,"Edge Variation, Sicilian Closed",1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.f2f4 e7e5 7.g1h3 g8e7 -B26,B26,1.e2e4 c7c5 2.b1c3 b8c6 3.g2g3 g7g6 4.f1g2 f8g7 5.d2d3 d7d6 6.c1e3 -B27,B27,1.e2e4 c7c5 2.g1f3 -B27,"Polish Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 b7b5 -B27,"Katalimov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b7b6 -B27,"Jalalabad Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e5 -B27,"Brussels Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 f7f5 -B27,"Double-Dutch Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 f7f5 3.e4f5 g8h6 -B27,"Hyperaccelerated Dragon, Sicilian",1.e2e4 c7c5 2.g1f3 g7g6 -B27,"Action Extension, Sicilian",1.e2e4 c7c5 2.g1f3 g7g6 3.c2c4 f8h6 -B27,"Hyperaccelerated Pterodactyl, Sic",1.e2e4 c7c5 2.g1f3 g7g6 3.d2d4 f8g7 -B27,"Frederico Variation, Sicilian",1.e2e4 c7c5 2.g1f3 g7g6 3.d2d4 f7f5 -B27,Sicilian Fred,1.e2e4 c7c5 2.g1f3 g7g6 3.d2d4 f7f5 -B27,"Buecker Variation, Sicilian",1.e2e4 c7c5 2.g1f3 h7h6 -B27,"Mongoose Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d8a5 -B27,"Althouse; Stiletto Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d8a5 -B27,"Accelerated Paulsen, Sicilian",1.e2e4 c7c5 2.g1f3 d8c7 -B27,"Quinteros Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d8c7 -B28,"O'Kelly Variation, Sicilian; B28",1.e2e4 c7c5 2.g1f3 a7a6 -B28,"Kieseritzky System, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.b2b3 -B28,"Wing Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.b2b4 -B28,"Aronin System, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.f1e2 -B28,"Venice System, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 -B28,"Ljubojevic Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 b7b5 -B28,"Gambit Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 d7d5 4.e4d5 g8f6 -B28,"Steiner Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 d7d6 -B28,"Barcza Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c3 g8f6 -B28,"Maroczy Bind, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c4 -B28,"Robatsch Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c4 d7d6 -B28,"Paulsen Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c4 e7e6 -B28,"Geller Line, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.c2c4 b8c6 4.d2d4 c5d4 5.f3d4 e7e5 -B28,"Quiet System, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d3 -B28,"Normal System, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 -B28,"Cortlever Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.f1c4 -B28,"Smith-Morra Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.c2c3 -B28,"Taimanov Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.f3d4 e7e5 -B28,"Kan Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.f3d4 e7e6 -B28,"Zagorovsky Line, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.d2d4 c5d4 4.d1d4 -B28,"Reti System, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.g2g3 -B28,"Yerevan System, O'Kelly Sicilian",1.e2e4 c7c5 2.g1f3 a7a6 3.b1c3 -B29,"Nimzovich; Rubinstein Var, Sicilian; B29",1.e2e4 c7c5 2.g1f3 g8f6 -B29,"Advance Variation, Sicilian",1.e2e4 c7c5 2.g1f3 g8f6 3.e4e5 -B30,Old Sicilian,1.e2e4 c7c5 2.g1f3 b8c6 -B30,"Rossolimo (Nezmetdinov) Variation, Sicilian; B30",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 -B31,B31,1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 g7g6 -B31,"Gufeld Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 g7g6 4.e1g1 f8g7 5.c2c3 e7e5 6.d2d4 -B31,"Lutikov Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 g7g6 4.e1g1 f8g7 5.c2c3 g8f6 6.d2d4 -B31,"Gurgenidze Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 g7g6 4.e1g1 f8g7 5.f1e1 e7e5 6.b2b4 -B31,"San Francisco Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.f1b5 c6a5 4.b2b4 -B32,B32,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 -B32,"Nimzovich Variation, Sicilian; Nimzo-American Variation",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 d7d5 -B32,"Bourdonnais; Lowenthal Var, Sic",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 e7e5 -B32,"Kalashnikov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 e7e5 5.d4b5 d7d6 -B32,"Retreat Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4f3 -B32,"Godiva Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 d8b6 -B32,"Flohr Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 d8c7 -B33,B33,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 -B33,"Four Knights Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 -B33,"Lasker-Pelikan Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 -B33,"Pelikan Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4b5 d7d6 -B33,"Chelyabinsk Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4b5 d7d6 7.c1g5 a7a6 8.b5a3 b7b5 -B33,"Sveshnikov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4b5 d7d6 7.c1g5 a7a6 8.b5a3 b7b5 9.g5f6 g7f6 10.c3d5 f6f5 -B33,"Bird Variation, Siclian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.d4b5 d7d6 7.c1g5 a7a6 8.b5a3 c8e6 -B34,Accelerated Dragon; Fianchetto Var; B34,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 -B35,B35,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.b1c3 f8g7 6.c1e3 g8f6 7.f1c4 -B36,"Maroczy Bind, Sicilian; B36",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 -B36,"Gurgenidze Variation, Sicilian",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 g8f6 6.b1c3 c6d4 7.d1d4 d7d6 -B37,B37,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 f8g7 -B38,B38,1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 f8g7 6.c1e3 -B39,"Breyer Variation, Sicilian; B39",1.e2e4 c7c5 2.g1f3 b8c6 3.d2d4 c5d4 4.f3d4 g7g6 5.c2c4 f8g7 6.c1e3 g8f6 7.b1c3 f6g4 -B40,"French Variation, Sicilian; B40",1.e2e4 c7c5 2.g1f3 e7e6 -B40,"Wing Gambit Deferred, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.b2b4 -B40,"Kramnik Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.c2c4 -B40,"Gaw-Paw Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 d8b6 -B40,"Kveinis Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 d8b6 -B41,B41,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 -B41,"Accelerated Wimpy Variation, Sic",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 -B41,"Paulsen; Kan Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 -B41,"Reti Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.c2c4 -B41,"Hedgehog Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.c2c4 g7g6 -B41,"Bronstein Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.c2c4 g8f6 6.b1c3 f8b4 7.f1d3 b8c6 -B41,"Anderssen; Counterattack Var, Sic",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 -B41,Pin Variation; Sicilian CounterAttack,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 f8b4 -B41,"Jaffe Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 f8b4 6.f1d3 e6e5 -B41,"Koch Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 f8b4 6.e4e5 -B41,"Marshall Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 d7d5 -B42,B42,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.f1d3 -B42,"Polugaevsky Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.f1d3 f8c5 -B42,"Swiss Cheese Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.f1d3 g7g6 -B43,B43,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 a7a6 5.b1c3 -B44,"Taimanov; Bastrikov, Paulsen Variation, Sicilian; B44",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 -B44,"Szen Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.d4b5 -B44,"Gary Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.d4b5 d7d6 6.c2c4 g8f6 7.b1c3 a7a6 8.b5a3 d6d5 -B45,B45,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 -B45,"Paulsen Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 g8f6 6.d4b5 f8b4 -B45,"American Attack, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 g8f6 6.d4b5 f8b4 7.b5d6 -B45,"Four Knights Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 -B45,"Cobra Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.d4b5 f8c5 -B46,B46,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 a7a6 -B46,"Taimanov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 a7a6 6.f1e2 g8e7 -B47,"Bastrikov Variation, Sicilian; B47",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 d8c7 -B47,"Ponomariov Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 d8c7 6.d4b5 c7b8 7.c1e3 a7a6 8.e3b6 -B48,B48,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 d8c7 6.c1e3 -B49,B49,1.e2e4 c7c5 2.g1f3 e7e6 3.d2d4 c5d4 4.f3d4 b8c6 5.b1c3 d8c7 6.c1e3 a7a6 7.f1e2 -B50,"Modern Variation, Sicilian; B50",1.e2e4 c7c5 2.g1f3 d7d6 -B50,"Kopec System, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.f1d3 -B50,"Delayed Alapin, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.c2c3 -B50,Basman-Palatnik Gambit,1.e2e4 c7c5 2.g1f3 d7d6 3.c2c3 g8f6 4.f1e2 b8c6 5.d2d4 c5d4 6.c3d4 f6e4 -B50,"Kotov Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.g2g3 b7b5 -B51,"Wing Gambit Deferred, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.b2b4 -B51,"Moscow Variation, Sicilian; Canal Attack; B51",1.e2e4 c7c5 2.g1f3 d7d6 3.f1b5 -B51,"Moscow Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.f1b5 b8c6 4.e1g1 c8d7 5.c2c3 a7a6 6.b5c6 d7c6 7.f1e1 g8f6 8.d2d4 c6e4 9.c1g5 -B51,"Dorfman Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.f1b5 b8c6 4.e1g1 c8d7 5.d1e2 g7g6 6.e4e5 -B52,"Bronstein (Haag) Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.f1b5 c8d7 4.b5d7 d8d7 5.e1g1 b8c6 6.c2c3 g8f6 7.d2d4 -B53,B53,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 -B53,"Tartakower Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.c2c3 -B53,"Chekhover Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.d1d4 -B53,"Zaitsev Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.d1d4 b8c6 5.f1b5 d8d7 -B53,"Lazy Knight Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 b8d7 -B53,"Cortlever Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 g8f6 4.d4c5 f6e4 5.c5d6 -B54,B54,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 -B55,B55,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 -B55,"Ginsberg Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.f1c4 -B55,"Moscow (Prins) Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.f2f3 -B55,"Venice Attack, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.f2f3 e7e5 6.f1b5 -B56,B56,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 -B56,"Kupreichik Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 c8d7 -B56,"Venice Attack, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e5 6.f1b5 -B56,"Classical Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 -B56,"Yates Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1d3 -B56,"Spielmann Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.d4e2 -B57,"Sozin; Velimirovic Attack, Sicilian; B57",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1c4 -B57,"Anti-Sozin Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1c4 d8b6 -B58,B58,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1e2 -B58,"Boleslavsky Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1e2 e7e5 -B58,"Louma Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1e2 e7e5 7.d4c6 -B58,"Fianchetto Variation, Richter-Rauzer Sicilizn",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.g2g3 -B59,B59,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.f1e2 e7e5 7.d4b3 -B60,"Richter-Rauzer Variation, Sicilian; B60",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 -B60,"Dragon Variation, Richter-Rauzer Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 g7g6 -B61,B61,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.d1d2 -B62,B62,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 -B62,"Margate (Vitolins) Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.f1b5 -B62,"Podebrady Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d4b3 -B62,"Exchange Variation, Richter-Rauzer Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d4c6 -B63,"Rauzer Variation, Sicilian; B63",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 -B63,"Ivanov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 d8b6 -B64,B64,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 f8e7 8.e1c1 e8g8 9.f2f4 -B65,B65,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 f8e7 8.e1c1 e8g8 9.f2f4 c6d4 10.d2d4 -B66,B66,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 a7a6 -B67,B67,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 a7a6 8.e1c1 c8d7 -B68,B68,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 a7a6 8.e1c1 c8d7 9.f2f4 f8e7 -B69,B69,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 b8c6 6.c1g5 e7e6 7.d1d2 a7a6 8.e1c1 c8d7 9.f2f4 f8e7 10.d4f3 b7b5 11.g5f6 -B70,"Dragon Variation, Sicilian; B70",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 -B70,"Alekhine Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.f1e2 f8g7 7.e1g1 e8g8 8.d4b3 -B70,"Fianchetto Variation, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.g2g3 -B71,"Levenfish Variation, Sicilian; B71",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.f2f4 -B72,B72,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 -B72,"Nottingham Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.d4b3 -B72,"Amsterdam (Battery) Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.d1d2 -B72,"Grigoriev Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.d1d2 e8g8 9.e1c1 -B73,B73,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 -B73,"Zollner Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.f2f4 d8b6 -B74,B74,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.d4b3 -B74,"Alekhine Line, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.d4b3 a7a5 -B74,"Maroczy Line, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.d4b3 c8e6 10.f2f4 c6a5 -B74,"Tartakower Line, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f1e2 b8c6 8.e1g1 e8g8 9.d4b3 c8e6 10.f2f4 d8c8 -B75,B75,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 -B76,"Yugoslav Attack, Sicilian Dragon; B76",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 -B76,"Panov Variation, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.g2g4 -B77,B77,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.f1c4 -B77,"Sosonko Variation, Sicilian Dragon",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.f1c4 f6d7 -B78,B78,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.f1c4 c8d7 10.e1c1 -B79,B79,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 g7g6 6.c1e3 f8g7 7.f2f3 e8g8 8.d1d2 b8c6 9.f1c4 c8d7 10.e1c1 d8a5 -B80,"Scheveingen Variation, Sicilian; B80",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 -B80,"Vitolins Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1b5 -B80,"English Attack, Scheveningen Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.c1e3 a7a6 7.f2f3 -B80,"Fianchetto Variation, Scheveningen Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.g2g3 -B81,"Delayed Keres Attack, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.c1e3 a7a6 7.g2g4 -B81,"Perenyi Gambit, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.c1e3 a7a6 7.g2g4 e6e5 8.d4f5 g7g6 9.g4g5 -B81,"Keres; Panov Variation, Sicilian; B81",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.g2g4 -B82,"Matanovic Attack, Sicilian; B82",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f2f4 -B82,"Tal Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f2f4 b8c6 7.c1e3 f8e7 8.d1f3 -B84,"Modern Paulsen, Sicilian; B84",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1e2 a7a6 -B85,B85,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1e2 a7a6 7.e1g1 f8e7 -B85,"Paulsen Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1e2 a7a6 7.e1g1 d8c7 8.f2f4 b8c6 -B86,"Fischer Attack, Sozin Attack, Sicilian; B86",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 -B87,"Flank Variation, Sicilian; B87",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 a7a6 7.c4b3 b7b5 -B88,"Leonhardt Variation, Sicilian; B88",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 b8c6 -B89,"Sherbakov Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 b8c6 7.c1e3 f8e7 8.c4b3 e8g8 9.e1g1 c6a5 10.f2f4 b7b6 -B89,"Velimirovic Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 e7e6 6.f1c4 b8c6 7.c1e3 f8e7 8.d1e2 -B90,"Najdorf Variation, Sicilian; B90",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 -B90,"Lipnitzky Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.f1c4 -B90,"Byrne Variation, Sicilian; English Attack",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1e3 -B90,"Anti-English, Najdorf Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1e3 f6g4 -B90,"Adams Attack, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.h2h3 -B90,"Freak Attack, Siicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.h1g1 -B91,"Zagreb Variation, Sicilian; B91",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.g2g3 -B92,"Opocensky Variation, Sicilian; B92",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.f1e2 -B92,"Opocensky Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.f1e2 e7e5 -B93,"Amsterdam Variation, Sicilian; B93",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.f2f4 -B94,B94,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 -B95,B95,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 -B96,B96,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 -B96,Polugaevsky; Accelerated Najdorf,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 b7b5 -B96,"Simagin Line, Najdorf Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 b7b5 8.e4e5 d6e5 9.f4e5 d8c7 10.d1e2 -B97,"Poisoned Pawn Variation, Najdorf Sicilian; B97",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 d8b6 -B97,"Poisoned Pawn Variation, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 d8b6 8.d1d2 -B97,"Poisoned Pawn Accepted, Najdorf Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 d8b6 8.d1d2 b6b2 -B98,B98,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 f8e7 -B98,"Argenitne; Goteborg Var, Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 f8e7 8.d1f3 h7h6 9.g5h4 g7g5 -B98,"Browne Variation, Najdorf Sicilian",1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 f8e7 8.d1f3 h7h6 9.g5h4 d8c7 -B99,B99,1.e2e4 c7c5 2.g1f3 d7d6 3.d2d4 c5d4 4.f3d4 g8f6 5.b1c3 a7a6 6.c1g5 e7e6 7.f2f4 f8e7 8.d1f3 d8c7 9.e1c1 b8d7 -C00,French Defense; C00,1.e2e4 e7e6 -C00,"Reti (Horwitz) Variation, French",1.e2e4 e7e6 2.b2b3 -C00,"Papa-Ticulat Gambit, French",1.e2e4 e7e6 2.b2b3 d7d5 3.c1b2 -C00,"Banzai-Leong Gambit, French",1.e2e4 e7e6 2.b2b4 -C00,Pinova Gambit,1.e2e4 e7e6 2.b2b4 f8b4 3.e4e5 -C00,"Bird Invitation, French",1.e2e4 e7e6 2.f1b5 -C00,"Orthoschapp Variation, French",1.e2e4 e7e6 2.c2c4 d7d5 3.c4d5 e6d5 4.d1b3 -C00,"Reversed Philidor, French",1.e2e4 e7e6 2.d2d3 d7d5 3.b1d2 g8f6 4.g1f3 b8c6 5.f1e2 -C00,"Franco-Hiva Gambit, French",1.e2e4 e7e6 2.d2d3 f7f5 -C00,"Alapin; Witaker Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.c1e3 -C00,"Alapin-Diemer Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.c1e3 d5e4 4.f2f3 -C00,"Diemer-Duhm Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.c2c4 -C00,"Steinitz Attack, French",1.e2e4 e7e6 2.e4e5 -C00,"Reuter Gambit, French",1.e2e4 e7e6 2.f2f4 d7d5 3.g1f3 d5e4 4.f3g5 -C00,"Reti-Spielmann Attack, French",1.e2e4 e7e6 2.g2g3 -C00,"Queen's Knight, French",1.e2e4 e7e6 2.b1c3 -C00,"Pelikan Variation, French",1.e2e4 e7e6 2.b1c3 d7d5 3.f2f4 -C00,"Two Knight Variation, French",1.e2e4 e7e6 2.b1c3 d7d5 3.g1f3 -C00,"Knight Variation, French",1.e2e4 e7e6 2.g1f3 -C00,"Wing Gambit, French",1.e2e4 e7e6 2.g1f3 d7d5 3.e4e5 c7c5 4.b2b4 -C00,"Two Knights Variation, French",1.e2e4 e7e6 2.g1f3 d7d5 3.b1c3 -C00,"Chigorin Variation, French",1.e2e4 e7e6 2.d1e2 -C01,C01,1.e2e4 e7e6 2.d2d4 -C01,"Baeuerle Gambit, French",1.e2e4 e7e6 2.d2d4 b7b5 -C01,"Schlechter Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.f1d3 -C01,"Exchange Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4d5 e6d5 -C01,"Monte Carlo Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4d5 e6d5 4.c2c4 -C01,"Svenius Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4d5 e6d5 4.b1c3 g8f6 5.c1g5 -C01,"Canal Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4d5 e6d5 5.f1d3 g8e7 6.d1h5 -C01,"Perseus Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.g1f3 -C01,"Carlson Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.g1f3 d5e4 4.f3e5 -C01,"Morphy Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.g1h3 -C01,Hoffman Gambit,1.e2e4 e7e6 2.d2d4 d7d5 3.d1e2 e6e5 4.f2f4 e5f4 -C01,"Franco-Hiva Gambit I, French",1.e2e4 e7e6 2.d2d4 f7f5 -C01,"Mediterranean Defense, French",1.e2e4 e7e6 2.d2d4 g8f6 -C02,"Advance Variation, French; C02",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 -C02,"Extended Bishop Swap, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c8d7 -C02,"Advance; Nimzovich; Steinitz Var, Fr",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c8d7 -C02,"Frenkel Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.b2b4 -C02,"Paulsen Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 b8c6 5.g1f3 -C02,"Euwe Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 b8c6 5.g1f3 c8d7 -C02,"Lputian Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 b8c6 5.g1f3 d8b6 6.a2a3 g8h6 -C02,"Milner-Barry Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 b8c6 5.g1f3 d8b6 6.f1d3 -C02,"Wade Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.c2c3 d8b6 5.g1f3 c8d7 -C02,"Nimzovich Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.g1f3 -C02,"Ruisdonk Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.g1f3 c5d4 5.f1d3 -C02,"Nimzovich Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.e4e5 c7c5 4.d1g4 -C03,"Tarrasch Variation, French; C03",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 -C03,"Morozevich Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 f8e7 -C03,"Haberditz Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 f7f5 -C04,C04,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 b8c6 -C05,C05,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 g8f6 -C06,C06,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 g8f6 4.e4e5 f6d7 5.f1d3 -C07,Open System Tarrasch French; C07,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 -C07,"Shaposhnikov Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 4.e4d5 g8f6 -C07,"Chistiakov Defense, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 4.e4d5 d8d5 -C08,C08,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 4.e4d5 e6d5 -C09,C09,1.e2e4 e7e6 2.d2d4 d7d5 3.b1d2 c7c5 4.e4d5 e6d5 5.g1f3 b8c6 -C10,"Normal Variation, French; C10",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 -C10,"Marshall Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 c7c5 -C10,"Rubinstein Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 -C10,"Rasa-Studier Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c1e3 -C10,"Ellis Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 e6e5 -C10,"Blackburne Defense, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 -C10,"Capablanca Line, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 b8d7 5.g1f3 g8f6 6.e4f6 d7f6 7.f3e5 -C10,"Frere; Becker; Katilimov, Maric Var, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 d5e4 4.c3e4 d8d5 -C10,"Svenonius Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4d5 -C11,"Classical Variation, French; C11",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 -C11,"Swiss Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.f1d3 -C11,"Henneberger Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1e3 -C11,"Burn Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 d5e4 -C11,"Steinitz Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 -C11,"Bradford Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 f6d7 5.f2f4 c7c5 6.d4c5 f8c5 7.d1g4 -C11,"Brodsky-Jones Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 f6d7 5.f2f4 c7c5 6.d4c5 b8c6 7.a2a3 f8c5 8.d1g4 e8g8 9.g1f3 f7f6 -C11,"Boleslavsky Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 f6d7 5.f2f4 c7c5 6.g1f3 b8c6 7.c1e3 -C11,"Gledhill Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.e4e5 f6d7 5.d1g4 -C12,C12,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 -C12,"McCutcheon Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 -C12,"Olland (Dutch) Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5c1 -C12,"Lasker Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5d2 b4c3 -C12,"Duras Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5d2 b4c3 7.b2c3 f6e4 8.d1g4 e8f8 9.d2c1 -C12,"Tartakower Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5d2 f6d7 -C12,"Janowski Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5e3 -C12,"Bernstein Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.g5h4 -C12,"Chigorin Variation, French�",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.e5f6 -C12,"Grigoriev Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8b4 5.e4e5 h7h6 6.e5f6 h6g5 7.f6g7 h8g8 8.h2h4 g5h4 9.d1g4 -C13,"Vistaneckis (Nimzovich) Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6g8 -C13,"Frankfurt Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6g8 6.g5e3 b7b6 -C14,C14,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 -C14,"Anderssen (Richter) Attack, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.g5f6 -C14,"Tartakower Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6e4 -C14,"Classical Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 -C14,"Tarrasch Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.f1d3 -C14,"Steinitz Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.f2f4 -C14,"Alapin Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.c3b5 -C14,"Rubinstein Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.d1d2 -C14,"Pollock Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.g5e7 d8e7 7.d1g4 -C14,"Chatard-Alekhine; Albin Attack, Fr",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 -C14,"Maroczy Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 a7a6 -C14,"Albin-Chatard Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 e7g5 7.h4g5 d8g5 -C14,"Breyer Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 c7c5 -C14,"Teichmann Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 f7f6 -C14,"Spielmann Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 g8f6 4.c1g5 f8e7 5.e4e5 f6d7 6.h2h4 e8g8 -C15,"Winckelmann-Riemer Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.a2a3 -C15,"Fingerslip Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.c1d2 -C15,"Kunin Double Gambit, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.c1d2 d5e4 5.d1g4 d8d4 -C15,"Schwarz's Line, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.c1d2 g8e7 5.c3b1 -C15,"Kondratiyev Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.f1d3 c7c5 5.e4d5 d8d5 6.c1d2 -C15,"Delayed Exchange Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4d5 -C15,"Alekhine (Maroczy) Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.g1e2 -C15,"Kan Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.g1e2 d5e4 5.a2a3 b4c3 6.e2c3 b8c6 -C16,C16,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 -C16,"Petrosian Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 d8d7 -C17,C17,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 -C17,"Bogoljubow Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.c1d2 -C17,"Icelandic Defense, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.c1d2 g8e7 6.f2f4 -C17,"Moscow Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.d1g4 -C18,"Swiss (Retreat) Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 b4a5 -C18,"Armenian Line, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 b4a5 6.b2b4 c5d4 -C18,"Maroczy-Willis Variation, French",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 c5d4 6.a3b4 d4c3 -C19,C19,1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 b4c3 6.b2c3 g8e7 -C19,"Poisoned Pawn Variation, French Winawer",1.e2e4 e7e6 2.d2d4 d7d5 3.b1c3 f8b4 4.e4e5 c7c5 5.a2a3 b4c3 6.b2c3 g8e7 7.d1g4 -C20,King Pawn Game; C20,1.e2e4 e7e5 -C20,Mengarini Opening,1.e2e4 e7e5 2.a2a3 -C20,Portuguese Opening,1.e2e4 e7e5 2.f1b5 -C20,Miguel Gambit,1.e2e4 e7e5 2.f1b5 f8c5 3.b2b4 -C20,Tortoise Opening,1.e2e4 e7e5 2.f1d3 -C20,Macleod Attack,1.e2e4 e7e5 2.c2c3 -C20,Norwalder Gambit,1.e2e4 e7e5 2.c2c3 d7d5 3.d1h5 f8d6 -C20,Lasa Gambit,1.e2e4 e7e5 2.c2c3 f7f5 -C20,Whale Opening,1.e2e4 e7e5 2.c2c4 -C20,Bavarian Gambit,1.e2e4 e7e5 2.c2c4 d7d5 -C20,Clam Variation; Leonardis Variation,1.e2e4 e7e5 2.d2d3 -C20,Indian Opening,1.e2e4 e7e5 2.d2d3 -C20,Weber Gambit,1.e2e4 e7e5 2.d2d3 d7d5 3.e4d5 c7c6 4.d5c6 b8c6 -C20,King's Gambit Reversed�,1.e2e4 e7e5 2.d2d3 f7f5 -C20,Radisch Gambit,1.e2e4 e7e5 2.d2d3 g8f6 3.f2f4 f8c5 -C20,Krejcik Gambit,1.e2e4 e7e5 2.f2f3 g8f6 3.f1c4 f8c5 4.g1e2 b8c6 5.b2b4 -C20,King's Head Opening,1.e2e4 e7e5 2.f2f3 g8f6 3.b1c3 -C20,Alapin Opening,1.e2e4 e7e5 2.g1e2 -C20,Napoleon Attack,1.e2e4 e7e5 2.d1f3 -C20,Wayward Queen; Danvers; Parnham,1.e2e4 e7e5 2.d1h5 -C20,Mellon Gambit,1.e2e4 e7e5 2.d1h5 b8c6 3.f1c4 g8h6 4.d2d3 g7g6 5.h5f3 f7f6 6.g1e2 d7d5 -C20,Kiddie Countergambit,1.e2e4 e7e5 2.d1h5 g8f6 -C21,Beyer Gambit,1.e2e4 e7e5 2.d2d4 d7d5 -C21,Philidor Gambit,1.e2e4 e7e5 2.d2d4 d7d6 3.d4e5 c8d7 -C21,Center Game Accepted,1.e2e4 e7e5 2.d2d4 e5d4 -C21,Von der Lasa Gambit,1.e2e4 e7e5 2.d2d4 e5d4 3.f1c4 -C21,"Ross Gambit, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.f1d3 -C21,Danish Gambit,1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 -C21,"Sorensen Defense, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d7d5 -C21,Danish Gambit Accepted,1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 -C21,"Copenhagen Defense, Danish Gambit",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 f8b4 -C21,"Schlechter Defense, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 d7d5 -C21,"Classical Defense, Danish Gambit",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 g8f6 -C21,"Chigorin Defense, Danish Gambit",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 d4c3 4.f1c4 c3b2 5.c1b2 d8e7 -C21,"Svenonius Defense, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.c2c3 g8e7 -C21,Halasz-McDonnell Gambit,1.e2e4 e7e5 2.d2d4 e5d4 3.f2f4 -C21,"Crocodile Variation, Center Game",1.e2e4 e7e5 2.d2d4 e5d4 3.f2f4 f8c5 4.g1f3 b8c6 5.c2c3 -C21,"Lanc-Arnold Gambit, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.g1f3 f8c5 4.c2c3 -C21,"Scippler Gambit, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.g1f3 f8c5 4.c2c3 d4c3 5.f1c4 -C22,C22,1.e2e4 e7e5 2.d2d4 e5d4 3.d1d4 -C22,"Hall Variation, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.d1d4 b8c6 4.d4c4 -C22,"Kupreichik Variation, Center",1.e2e4 e7e5 2.d2d4 e5d4 3.d1d4 b8c6 4.d4e3 g8f6 5.b1c3 f8b4 6.c1d2 e8g8 7.e1c1 f8e8 8.f1c4 -C23,Bishop's Opening; C23,1.e2e4 e7e5 2.f1c4 -C23,Anderssen Gambit,1.e2e4 e7e5 2.f1c4 b7b5 3.c4b5 c7c6 -C23,Thorold Gambit,1.e2e4 e7e5 2.f1c4 b7b5 3.c4b5 f7f5 -C23,"MacDonnell Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.b2b4 -C23,"Labourdonnais-Denker Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.b2b4 c5b4 4.c2c3 -C23,"McDonnell Double Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.b2b4 c5b4 4.f2f4 -C23,"Philidor Variation, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.c2c3 -C23,"Lewis Counter-Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.c2c3 d7d5 -C23,"Lewis Countergambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.c2c3 d7d5 4.c4d5 g8f6 -C23,"Walker Variation, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.c2c3 d7d5 4.c4d5 g8f6 5.d2d4 -C23,"Lewis Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.d2d4 -C23,"Stein Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.f2f4 -C23,"Lopez Variation, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.d1e2 -C23,"Lopez Gambit, Bishop",1.e2e4 e7e5 2.f1c4 f8c5 3.d1e2 g8f6 4.f2f4 -C23,"Khan Gambit, Bishop",1.e2e4 e7e5 2.f1c4 d7d5 -C23,"King's Gambit Reversed, Bishop",1.e2e4 e7e5 2.f1c4 f7f5 -C23,Calabrese Counter-Gambit,1.e2e4 e7e5 2.f1c4 f7f5 -C23,"Kreijcik Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.f2f3 f8c5 4.g1e2 b8c6 5.b2b4 -C23,"Greco Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.f2f4 -C23,"Horwitz Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.b1c3 b7b5 -C23,"Blanel Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.b1c3 f6e4 -C23,"Paschmann Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.g1e2 f6e4 4.e2c3 -C23,"Meitner-Mieses Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f1c4 f8c5 4.d1g4 d8f6 5.c3d5 -C23,"Bronstein Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f1c4 g8f6 4.f2f4 f6e4 5.g1f3 -C24,"Spielmann Attack, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d3 f8c5 4.b1c3 -C24,"Kitchner Folly, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d3 f8e7 4.g1f3 e8g8 -C24,"Vienna Hybrid, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d3 b8c6 4.b1c3 -C24,"Hromadka Variation, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d3 b8c6 4.b1c3 f8b4 5.g1e2 -C24,"Warsaw Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d4 e5d4 4.c2c3 -C24,Urusov; Ouroussoff; Keidansky G,1.e2e4 e7e5 2.f1c4 g8f6 3.d2d4 e5d4 4.g1f3 -C24,"Keidansky Gambit, Bishop",1.e2e4 e7e5 2.f1c4 g8f6 3.d2d4 e5d4 4.g1f3 f6e4 5.d1d4 -C25,"Zhuravlev Counter-Gambit, Vienna",1.e2e4 e7e5 2.b1c3 f8b4 3.d1g4 -C25,"Zhuraviev Countergambit, Vienna",1.e2e4 e7e5 2.b1c3 f8b4 3.d1g4 g8f6 -C25,"Anderssen Defense, Vienna",1.e2e4 e7e5 2.b1c3 f8c5 -C25,"Hamppe-Mietner Variation, Vienna",1.e2e4 e7e5 2.b1c3 f8c5 3.c3a4 -C25,"Giraffe Attack, Vienna",1.e2e4 e7e5 2.b1c3 f8c5 3.d1g4 -C25,"Omaha Gambit, Vienna",1.e2e4 e7e5 2.b1c3 d7d6 3.f2f4 -C25,"Fyfe Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.d2d4 -C25,"Philidor Countergambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.d2d4 f7f5 -C25,"Alapin Variation, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 -C25,Vienna Gambit,1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 -C25,"Quelle Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 f8c5 4.f4e5 d7d6 -C25,"Steinitz Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 -C25,"Fraser-Minckwitz Variation, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 d8h4 5.e1e2 b7b6 -C25,"Zukertort Defense, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 d8h4 5.e1e2 d7d5 -C25,"Paulsen Defense, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 d8h4 5.e1e2 d7d6 -C25,"Soerensen Defense, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.d2d4 d8h4 5.e1e2 g7g5 -C25,"Knight Variation, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 -C25,"Cunningham Defense, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 f8e7 -C25,"Hamppe-Muzio Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 g7g5 5.f1c4 g5g4 6.e1g1 -C25,"Pierce Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 g7g5 5.d2d4 -C25,"Hamppe-Allgaier Gambit, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 g7g5 5.h2h4 g5g4 6.f3g5 -C25,Hamppe-Allgaier-Thorold Gambit,1.e2e4 e7e5 2.b1c3 b8c6 3.f2f4 e5f4 4.g1f3 g7g5 5.h2h4 g5g4 6.f3g5 h7h6 7.g5f7 e8f7 8.d2d4 -C25,"Paulsen Variation, Vienna",1.e2e4 e7e5 2.b1c3 b8c6 3.g2g3 -C25,Mariotti Gambit,1.e2e4 e7e5 2.b1c3 b8c6 3.g2g3 f8c5 4.f1g2 h7h5 5.g1f3 h5h4 -C25,"Polluck Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.g2g3 f8c5 4.f1g2 b8c6 5.g1e2 d7d5 6.e4d5 -C25,"Erben Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.g2g3 d7d5 4.e4d5 c7c6 -C26,"Falkbeer Variation, Vienna; C26",1.e2e4 e7e5 2.b1c3 g8f6 -C26,"Mengarini Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.a2a3 -C26,"Oxford Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.d2d3 -C26,"Mieses Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.g2g3 -C27,"Stanley Variation, Vienna; C27",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 -C27,"Reversed Spanish, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f8b4 -C27,"Bishop Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f8c5 -C27,"Eifel Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f8c5 4.g1e2 b7b5 -C27,"Modern Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 -C27,"Boden-Kieseritzky Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.g1f3 -C27,"Monster Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.d1h5 e4d6 5.c4b3 f8e7 -C27,"Alekhine Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.d1h5 e4d6 5.c4b3 f8e7 6.g1f3 b8c6 7.f3e5 -C27,"Adams Gambit, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.d1h5 e4d6 5.c4b3 b8c6 6.d2d4 -C27,"Frankenstein-Dracula Var, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 f6e4 4.d1h5 e4d6 5.c4b3 b8c6 6.c3b5 g7g6 7.h5f3 f7f5 8.f3d5 d8e7 -C28,"Three Knights Variation, Vienna; C28",1.e2e4 e7e5 2.b1c3 g8f6 3.f1c4 b8c6 -C29,"Vienna Gambit, Vienna; C29",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 -C29,"Steinitz Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.d2d3 -C29,"Breyer Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.g1f3 f8e7 -C29,"Kaufmann Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.g1f3 c8g4 6.d1e2 -C29,"Paulsen Attack, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.d1f3 -C29,"Bardeleben Variation, Vienna",1.e2e4 e7e5 2.b1c3 g8f6 3.f2f4 d7d5 4.f4e5 f6e4 5.d1f3 f7f5 -C30,King's Gambit; C30,1.e2e4 e7e5 2.f2f4 -C30,"Heath Variation, KGD; Rotlewi Countergambit",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 d7d6 4.b2b4 -C30,"Marshall (Euwe) Attack, KGD",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 d7d6 4.c2c3 c8g4 5.f4e5 d6e5 6.d1a4 -C30,"Rubinstein Countergambit, KGD",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 d7d6 4.c2c3 f7f5 -C30,"Svenonius Variation, KGD",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 d7d6 4.b1c3 g8f6 5.f1c4 b8c6 6.d2d3 c8g4 -C30,"Senechaud Counter-Gambit, KGD",1.e2e4 e7e5 2.f2f4 f8c5 3.g1f3 g7g5 -C30,"Mafia Defense, KGD",1.e2e4 e7e5 2.f2f4 c7c5 -C30,"Panteldakis Countergambit, KGD",1.e2e4 e7e5 2.f2f4 f7f5 -C30,"Soller-Zilbermints Gambit, KGD",1.e2e4 e7e5 2.f2f4 f7f6 3.f4e5 b8c6 -C30,Zilbermints Double Countergambit; KGD,1.e2e4 e7e5 2.f2f4 g7g5 -C30,"Queen's Knight Defense, KGD",1.e2e4 e7e5 2.f2f4 b8c6 -C30,"Miles Defense, KGD",1.e2e4 e7e5 2.f2f4 b8c6 3.g1f3 f7f5 -C30,"Zilbermints Double Gambit I, KGD",1.e2e4 e7e5 2.f2f4 b8c6 3.g1f3 g7g5 -C30,"Petrov's Defense, KGD",1.e2e4 e7e5 2.f2f4 g8f6 -C30,"Norwalde (Norwalder) Variation, KGD",1.e2e4 e7e5 2.f2f4 d8f6 -C30,"Schubert Variation, KGD",1.e2e4 e7e5 2.f2f4 d8f6 3.b1c3 f6f4 4.d2d4 -C30,"Keene Defense, KGD",1.e2e4 e7e5 2.f2f4 d8h4 3.g2g3 h4e7 -C31,"Hinrichsen Gambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.d2d4 -C31,"Falkbeer Countergambit Accepted, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 -C31,"Miles Gambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 f8c5 -C31,"Nimzovich-Marshall Variation, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 c7c6 -C31,"Marshall C-G, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 c7c6 -C31,"Pickler Gambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 c7c6 4.d5c6 f8c5 -C31,"Nimzovich Variation, KGD; Anderssen Attack",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 4.f1b5 -C31,"Blackbunre Attack, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.g1f3 -C32,"Staunton Line, KGD; C32",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 -C32,"Morphy Defense, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 4.d2d3 g8f6 5.b1c3 f8b4 6.c1d2 e4e3 -C32,"Keres Variation, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 4.d2d3 g8f6 5.b1d2 -C32,"Old Line, Falkbeer Countergambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5e4 4.d2d3 g8f6 5.d1e2 -C32,"Modern Transfer, Falkbeer Countergambit, KGD",1.e2e4 e7e5 2.f2f4 d7d5 3.e4d5 e5f4 -C33,King's Gambit Accepted; C33,1.e2e4 e7e5 2.f2f4 e5f4 -C33,"Orsini Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.b2b3 -C33,"Schurig Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1b5 -C33,"Bishop's Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 -C33,"Kieseritzky Gambit, Bishop's Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 b7b5 -C33,"Lopez Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 c7c6 -C33,"Bledow; Morphy Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d7d5 -C33,"Bledow Countergambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d7d5 4.c4d5 g8f6 -C33,"Gianutio Counter-Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 f7f5 -C33,"Anderssen Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 g7g5 -C33,"Maurian Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 b8c6 -C33,Cozio; Hanneken; Prussian; Lichtenhein,1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 g8f6 -C33,"Bogoljubow Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 g8f6 4.b1c3 -C33,"Bogoljubov; Jaenisch Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 g8f6 4.b1c3 c7c6 -C33,"Bryan; Kieseritzky Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 b7b5 -C33,"Greco Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 f8c5 -C33,"Cozio Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 d7d6 -C33,"Classical Defense, KGA; Lopez Variation",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 -C33,"Grimm Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 5.b1c3 f8g7 6.d2d4 d7d6 7.e4e5 -C33,"MacDonnell Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 5.b1c3 f8g7 6.d2d4 g8e7 7.g2g3 -C33,"Fraser Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 5.b1c3 f8g7 6.g2g3 f4g3 7.d1f3 -C33,"Cozio Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g7g5 5.d1f3 -C33,"Boden Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 b8c6 -C33,"Jaenisch Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 g8f6 -C33,"Jaenisch Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1c4 d8h4 4.e1f1 h4f6 -C33,Lesser Bishop; Tartakower,1.e2e4 e7e5 2.f2f4 e5f4 3.f1e2 -C33,"Weiss Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.f1e2 f7f5 4.e4f5 d7d6 -C33,"Central; Polerio; Willemson, Steinitz",1.e2e4 e7e5 2.f2f4 e5f4 3.d2d4 -C33,"Gaga Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g2g3 -C33,"Gama Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g2g3 f4g3 4.g1f3 -C33,"Leonardo (Stamma) Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.h2h4 -C33,"Drunken King, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.e1f2 -C33,"Keres, Mason, Parnu, Requena",1.e2e4 e7e5 2.f2f4 e5f4 3.b1c3 -C33,"Requena Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.b1c3 d8h4 -C33,"Paris Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1e2 -C33,"Eisenberg Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1h3 -C33,"Basman Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1e2 -C33,"Bilguer-Mirage Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1e2 -C33,"Breyer; Hungarian; Carrera, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1f3 -C33,"Dodo Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1g4 -C33,"Carrera Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.d1h5 -C34,"King's Knight Gambit, KGA; C34",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 -C34,"Fischer Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 d7d6 -C34,"Schulder Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 d7d6 4.b2b4 -C34,"Gianutio Countergambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 f7f5 -C34,"Becker; Anti-Kieseritzky Var, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 h7h6 -C34,"MacLeod Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 b8c6 -C34,"Bonsch-Osmolovsky Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g8e7 -C34,"Schallop Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g8f6 -C34,"Tashkent Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g8f6 4.e4e5 f6h5 5.g2g4 -C35,"Cunningham Gambit, KGA; C35",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 f8e7 -C35,"Bertin; Three Pawns Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 f8e7 4.f1c4 e7h4 5.g2g3 -C35,"Neo-Cunningham Gambit, KGA; McCormick Defense",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 f8e7 4.f1c4 g8f6 -C36,"Scandinavian Variation, KGA; Modern Defense, KGA; C36",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 d7d5 -C36,"Abbazia Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 d7d5 4.e4d5 g8f6 -C37,C37,1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 -C37,"Ghulam Kassim; Koch Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 -C37,"Middleton Counter-Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 d7d6 5.e1g1 c8g4 6.h2h3 h7h5 7.h3g4 -C37,"Greco-Lolli; Wild Muzio Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.c4f7 -C37,"Young Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.c4f7 e8f7 6.e1g1 g4f3 7.d1f3 d8f6 8.d2d4 f6d4 9.c1e3 -C37,"Koch; Ghulam Kassim Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.d2d4 -C37,Kotov Gambit,1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.d2d4 g4f3 6.c1f4 -C37,"Ghulam-Kassim Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.d2d4 g4f3 6.d1f3 -C37,"Australian Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.h2h4 -C37,"MacDonnell Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.b1c3 -C37,"Anderssen Counter-Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.f3e5 d8h4 6.e1f1 g8h6 7.d2d4 d7d6 -C37,"Muzio-Polerio Gambit, KGA; Wild Muzio",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 -C37,"Brentano Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 d7d5 -C37,"Holloway Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 b8c6 -C37,"From Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8e7 -C37,"Sarratt Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 -C37,"Young Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.c4f7 e8f7 8.d2d4 f6d4 9.c1e3 d4f6 -C37,"Double Muzio Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.e4e5 f6e5 8.c4f7 -C37,"Paulsen Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.e4e5 f6e5 8.d2d3 f8h6 9.b1c3 g8e7 10.c1d2 -C37,"Bello Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.b1c3 -C37,"Baldwin Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 g4f3 6.d1f3 d8f6 7.b1c3 f6d4 8.g1h1 d4c4 9.c3d5 -C37,"Kling & Horwitz Counter-Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 g5g4 5.e1g1 d8e7 -C37,"Blachy Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 b8c6 -C37,"Rosentreter Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.d2d4 -C37,"Rosentreter-Testa Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.d2d4 g5g4 5.c1f4 -C37,"Quaade; Taylor Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.b1c3 -C38,"Traditional Variation, KGA; C38",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 -C38,"Mayet Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.d2d4 d7d6 6.c2c3 -C38,"Philidor Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.h2h4 -C38,"Greco Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.h2h4 h7h6 6.d2d4 d7d6 -C38,"Schultz Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.h2h4 h7h6 6.d2d4 d7d6 7.d1d3 -C38,"Hanstein Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.f1c4 f8g7 5.e1g1 -C39,C39,1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 -C39,"Kieseritzky Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 -C39,"Paulsen Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 f8g7 -C39,"Campbell; Brentano; Morphy Var, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 d7d5 -C39,"Green; Kolisch Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 d7d6 -C39,"Long Whip Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 h7h5 -C39,"Cotter Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 h7h6 6.e5f7 -C39,"Neumann Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 b8c6 -C39,"Berlin Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 -C39,"Anderssen Defense, Kieseritsky Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8d6 -C39,"Anderssen-Cordel Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8d6 8.d2d4 f6h5 9.c1f4 h5f4 -C39,"Rice Gambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8d6 8.e1g1 -C39,"Rice Gambit Accepted, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8d6 8.e1g1 d6e5 -C39,"Paulsen Defense Deferred, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.f1c4 d7d5 7.e4d5 f8g7 -C39,"Rubinstein Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.d2d4 -C39,"Riviere Variation, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 g8f6 6.e5g4 d7d5 -C39,"Rosenthal; Stockwhip Var, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3e5 d8e7 -C39,"Allgaier; Cotter Cambit, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 -C39,"Walker (Urusov) Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 h7h6 6.g5f7 e8f7 7.f1c4 -C39,"Urusov Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 h7h6 6.g5f7 e8f7 7.f1c4 d7d5 8.c4d5 f7e8 9.d2d4 -C39,"Thorold Attack, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 h7h6 6.g5f7 e8f7 7.d2d4 -C39,"Horny Defense, KGA",1.e2e4 e7e5 2.f2f4 e5f4 3.g1f3 g7g5 4.h2h4 g5g4 5.f3g5 h7h6 6.g5f7 e8f7 7.d1g4 g8f6 8.g4f4 -C40,King's Knight Opening; C40,1.e2e4 e7e5 2.g1f3 -C40,Glatz Gambit; Busch-Gass Gambit,1.e2e4 e7e5 2.g1f3 f8c5 -C40,Chiodini Gambit,1.e2e4 e7e5 2.g1f3 f8c5 3.f3e5 b8c6 -C40,Jalalabad Defense,1.e2e4 e7e5 2.g1f3 c7c5 -C40,Gunderam Gambit,1.e2e4 e7e5 2.g1f3 c7c6 -C40,Queen's Pawn Counter-Gambit; Elephant Gambit,1.e2e4 e7e5 2.g1f3 d7d5 -C40,Maroczy; Elephant Gambit,1.e2e4 e7e5 2.g1f3 d7d5 3.e4d5 f8d6 -C40,Halasz-Jacobsen Gambit,1.e2e4 e7e5 2.g1f3 d7d5 3.e4d5 f8d6 -C40,Maroczy Gambit,1.e2e4 e7e5 2.g1f3 d7d5 3.e4d5 f8d6 -C40,Paulsen Counter-Gambit,1.e2e4 e7e5 2.g1f3 d7d5 3.e4d5 e5e4 -C40,Wasp Variation,1.e2e4 e7e5 2.g1f3 d7d5 3.f3e5 d5e4 4.f1c4 d8g5 -C40,Latvian; Greco Counter-Gambit,1.e2e4 e7e5 2.g1f3 f7f5 -C40,"Senechaud Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.b2b4 -C40,"Strautins Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f1c4 b7b5 -C40,"Poisoned Pawn Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f1c4 f5e4 4.f3e5 d8g5 5.d2d4 g5g2 -C40,"Morgado Defense, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f1c4 g8f6 -C40,"Diepstraten Countergambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.c2c4 -C40,"Clam Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.d2d3 b8c6 4.e4f5 -C40,"Mason Countergambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.d2d4 -C40,Latvian Gambit Accepted,1.e2e4 e7e5 2.g1f3 f7f5 3.e4f5 -C40,"Lobster Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.g2g4 -C40,"Mlotkowski Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.b1c3 -C40,"Fraser Defense, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 b8c6 -C40,"Corkscrew Counter-Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 g8f6 4.f1c4 f5e4 5.e5f7 d8e7 6.f7h8 d7d5 -C40,"Greco Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8e7 -C40,"Mail Line, Latvian Gambit Accepted",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 -C40,"Bilguer Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 d7d6 5.e5c4 -C40,"Bronstein Attack, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 d7d6 5.e5c4 f5e4 6.f1e2 -C40,"Nimzovich Attack, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 d7d6 5.e5c4 f5e4 6.c4e3 -C40,"Bronstein Gambit, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.d2d4 d7d6 5.e5c4 f5e4 6.d1h5 g7g6 7.h5e2 -C40,"Foltys-Leonhardt Variation, Latvian Gambit",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.e5c4 -C40,"Foltys Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.e5c4 f5e4 5.d2d3 -C40,"Leonhardt Variation, Latvian",1.e2e4 e7e5 2.g1f3 f7f5 3.f3e5 d8f6 4.e5c4 f5e4 5.b1c3 -C40,Damiano Defense,1.e2e4 e7e5 2.g1f3 f7f6 -C40,Damiano Gambit,1.e2e4 e7e5 2.g1f3 f7f6 3.f3e5 f6e5 4.d1h5 g7g6 5.h5e5 d8e7 6.e5h8 -C40,"Chigorin Gambit, Damiano",1.e2e4 e7e5 2.g1f3 f7f6 3.f3e5 d8e7 4.e5f3 d7d5 -C40,Levenstein; Queen's Defense; Brazilian; Gunderam,1.e2e4 e7e5 2.g1f3 d8e7 -C40,Gunderam Gambit,1.e2e4 e7e5 2.g1f3 d8e7 3.f1c4 f7f5 -C40,McConnell Defense,1.e2e4 e7e5 2.g1f3 d8f6 -C40,Greco Defense,1.e2e4 e7e5 2.g1f3 d8f6 -C40,Labourdonnais Gambit,1.e2e4 e7e5 2.g1f3 d8f6 3.f1c4 f6g6 4.e1g1 -C41,Philidor Defense; C41,1.e2e4 e7e5 2.g1f3 d7d6 -C41,"Lopez Counter-Gambit, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.f1c4 f7f5 -C41,Philidor Gambit,1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 c8d7 -C41,"Alapin-Blackburne Gambit, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 c8g4 4.d4e5 b8d7 -C41,"Exchange Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 -C41,"Morphy Gambit, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.f1c4 -C41,"Bird Gambit, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.c2c3 -C41,"Paulsen Attack, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.f3d4 d6d5 5.e4d5 -C41,"Larsen Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.f3d4 g7g6 -C41,"Boden Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 e5d4 4.d1d4 c8d7 -C41,Philidor Counter Attack,1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 f7f5 -C41,"Zukertort Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 f7f5 4.b1c3 -C41,"Hanham; Lord Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 -C41,"Delmar Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 c7c6 5.c2c3 -C41,"Schlechter Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 c7c6 5.b1c3 -C41,"Krause Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 c7c6 5.e1g1 -C41,"Steiner Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 c7c6 5.e1g1 f8e7 6.d4e5 -C41,"Sharp Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 b8d7 4.f1c4 d7b6 -C41,"Jaenisch Counter-Attack, Philidor; Nimzovich Variation",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 -C41,"Klein Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.f1c4 -C41,"Sokolsky Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.d4e5 f6e4 5.b1d2 -C41,"Rellstab Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.d4e5 f6e4 5.d1d5 -C41,"Larobok Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.b1c3 b8d7 -C41,"Locock Variation, Philidor",1.e2e4 e7e5 2.g1f3 d7d6 3.d2d4 g8f6 4.f3g5 h7h6 5.g5f7 -C42,Petroff Defense; Russian Defense; C42,1.e2e4 e7e5 2.g1f3 g8f6 -C42,"Urosov Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f1c4 -C42,"Boden-Kieseritzky Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f1c4 f6e4 4.b1c3 -C42,"Lichtenhein Defense, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f1c4 f6e4 4.b1c3 d7d5 -C42,"Russian Three Knights Var, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.b1c3 -C42,"Paulsen Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5c4 -C42,"Karklins-Martinovsky Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5d3 -C42,"Millenium Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.f1d3 -C42,"Kaufmann Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.c2c4 -C42,"French Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d3 -C42,"Classical Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 -C42,"Marshall Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8d6 -C42,"Tarrasch Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8d6 7.e1g1 e8g8 8.c2c4 c8g4 -C42,"Staunton Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8d6 7.e1g1 e8g8 8.c2c4 c7c6 -C42,"Jaenisch Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 b8c6 8.c2c4 -C42,"Browne Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 b8c6 8.c2c4 c6b4 9.c4d5 -C42,"Chigorin Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 b8c6 8.f1e1 -C42,"Berger Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 b8c6 8.f1e1 c8g4 9.c2c3 f7f5 10.b1d2 -C42,"Mason Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 f8e7 7.e1g1 e8g8 -C42,"Mason-Showalter Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d2d4 d6d5 6.f1d3 b8c6 -C42,"Nimzovich Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.b1c3 -C42,"Lasker Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d1e2 -C42,"Cozio (Lasker) Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f3 f6e4 5.d1e2 -C42,"Cochrane Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.e5f7 -C42,"Stafford Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 b8c6 -C42,"Damiano Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 f6e4 -C42,"Kholmov Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 f6e4 4.d1e2 d8e7 -C42,"Moody Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d1e2 b8c6 4.d2d4 -C43,"Modern Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 -C43,"Symmetrical Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 d7d5 -C43,"Suchting Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 e5d4 4.f1c4 -C43,"Tal Gambit, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 e5d4 4.e4e5 f6e4 5.f1b5 -C43,"Center Attack, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 e5d4 4.e4e5 f6e4 5.d1d4 -C43,"Trifunovic Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 f6e4 4.f1d3 d7d5 5.f3e5 f8d6 6.e1g1 e8g8 7.c2c4 d6e5 -C43,"Murret Variation, Petroff",1.e2e4 e7e5 2.g1f3 g8f6 3.d2d4 f6e4 4.f1d3 b8c6 -C43,"Steinitz Variation, Petoff; C43",1.e2e4 e7e5 2.g1f3 g8f6 3.f3e5 d7d6 4.d2d4 -C44,C44,1.e2e4 e7e5 2.g1f3 b8c6 -C44,Paschman Wing Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.b2b4 -C44,Taylor Opening; Inverted Hungarian,1.e2e4 e7e5 2.g1f3 b8c6 3.f1e2 -C44,Inverted Hanham Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.f1e2 g8f6 4.d2d3 d7d5 5.b1d2 -C44,Basman Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f1e2 g8f6 4.d2d4 e5d4 5.e4e5 -C44,"Spanish Variation, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.f1b5 -C44,"Nikitin Gambit, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.f1b5 d5e4 5.f3e5 d8d5 6.d1a4 -C44,"Caro Variation, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.d1a4 c8d7 -C44,"Steinitz Variation, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.d1a4 f7f6 -C44,"Leonhardt Variation, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 d7d5 4.d1a4 g8f6 -C44,Ponziani Counter-Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 f7f5 -C44,"Schmidt Attack, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 f7f5 4.d2d4 d7d6 5.d4d5 -C44,"Jaenisch Counterattack, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 g8f6 -C44,"Neumann Gambit, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 g8f6 4.f1c4 -C44,"Breyer Opening, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 g8f6 4.d2d3 f8e7 5.b2b4 -C44,"Vukovic Gambit, Ponziani",1.e2e4 e7e5 2.g1f3 b8c6 3.c2c3 g8f6 4.d2d4 f6e4 5.d4d5 f8c5 -C44,Dresden Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.c2c4 -C44,Scotch Game,1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 -C44,"MacLopez; Relfsson Gambit, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1b5 -C44,Scotch Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 -C44,"London Defense, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 f8b4 -C44,"Vitzhum Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 f8c5 5.f3g5 g8h6 6.d1h5 -C44,"Paulsen; Anderssen C-A, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 f8c5 5.e1g1 d7d6 6.c2c3 c8g4 -C44,"Benima Defense, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f1c4 f8e7 -C44,"Goering Gambit, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.c2c3 -C44,"Goering Gambit Declined, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.c2c3 d7d5 -C44,"Double Pawn Sacrifice, Goering Gambit",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.c2c3 d4c3 5.f1c4 -C44,"Bardeleben Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.c2c3 d4c3 5.b1c3 f8b4 6.f1c4 g8f6 -C44,"Lolli Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 c6d4 -C44,"Napoleon Gambit, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 c6d4 4.f3d4 e5d4 5.f1c4 -C44,Konstantinopolsky Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.g2g3 -C44,Chicago; Irish; Schulze-Muller Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f3e5 c6e5 4.d2d4 -C45,C45,1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 -C45,"Malaniuk Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8b4 -C45,"Classical Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 -C45,"Gunsberg Defense, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 g8e7 7.f1b5 c6d8 -C45,"Fleissig; Meitner Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 g8e7 7.d4c2 -C45,"Blackburne Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 g8e7 7.d1d2 -C45,"Millennium Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 f6g6 -C45,"Blumenfeld Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.d4b5 -C45,"Potter Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.d4b3 -C45,"Romanishin Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.d4b3 c5b4 -C45,"Geller Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.d4b3 c5b6 6.a2a4 a7a6 7.b1c3 g8f6 -C45,"Intermezzo Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.d4c6 d8f6 -C45,"Alekhine Gambit, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 g8f6 5.e4e5 -C45,Schmidt Var; Scotch Four Knights,1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 g8f6 5.b1c3 -C45,"Mieses Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 g8f6 5.d4c6 -C45,"Tartakower Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 g8f6 5.d4c6 b7c6 6.b1d2 -C45,"Steinitz; Pulling Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 -C45,"Braune Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.c1e3 -C45,"Horwitz Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.d4b5 -C45,"Steinitz Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.b1c3 -C45,"Modern Defesne, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.b1c3 f8b4 -C45,"Fraser Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.d4f3 -C45,"Paulsen Variation, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 d8h4 5.d4f5 -C45,"Paulsen Attack, Scotch",1.e2e4 e7e5 2.g1f3 b8c6 3.d2d4 e5d4 4.f3d4 f8c5 5.c1e3 d8f6 6.c2c3 g8e7 7.f1b5 -C46,Three Knights Opening; C46,1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 -C46,"Schlechter Variation, Three Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 f8b4 4.c3d5 g8f6 -C46,"Winawer Defense, Three Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 f7f5 -C46,"Steinitz Defense, Three Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g7g6 -C46,"Rosenthal Variation, Three Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g7g6 4.d2d4 e5d4 5.c3d5 -C46,"Italian Variation, Four Knights��",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1c4 -C46,"Halloween Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f3e5 -C47,Four Knights Openng; C47,1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 -C47,"Gunsberg Variation, Four Kngiths",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.a2a3 -C47,"Provincial Opening, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.a2a3 d7d6 5.h2h3 -C47,"Noa Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1c4 f6e4 5.c4f7 -C47,"Bogoljubow (Scotch) Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 -C47,"Oxford Gambit, Four Kngihts",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 f8b4 5.d4d5 c6d4 -C47,"Krause Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 f8b4 5.f3e5 -C47,"Leonhardt Defense, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 f8b4 5.f3e5 d8e7 -C47,"Belgrade Gambit, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 e5d4 5.c3d5 -C47,"Schmid Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.d2d4 e5d4 5.f3d4 f6e4 -C48,Spanish Four Knights Game; C48,1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 -C48,"Ranken Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 a7a6 5.b5c6 -C48,"Classical Variation, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8c5 -C48,"Marshall Gambit, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8c5 5.f3e5 c6d4 6.b5a4 e8g8 -C48,"Rubinstein Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 c6d4 -C49,"Double Ruy Lopez Opening, 4 Knights; C49",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 -C49,"Paulsen Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.b5c6 -C49,"Svenonius Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 b4c3 7.b2c3 d7d5 -C49,"Janowski Variation, Four Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 b4c3 7.b2c3 d7d6 8.f1e1 -C49,"Symmetrical Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 -C49,"Bernstein Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 7.c1g5 b4c3 8.b2c3 c6e7 -C49,"Metger Unpin Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 7.c1g5 b4c3 8.b2c3 d8e7 9.f1e1 c6d8 -C49,"Pillsbury Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 7.c1g5 c6e7 -C49,"Maroczy Variation, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.d2d3 d7d6 7.c3e2 -C49,"Blackburne Attack, 4 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.b1c3 g8f6 4.f1b5 f8b4 5.e1g1 e8g8 6.c3d5 b4c5 7.d2d4 -C50,Italian Game; C50,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 -C50,Giuoco Piano; Italian Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 -C50,Lucchini Gambit; Italian,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.d2d3 f7f5 -C50,"Canal Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.d2d3 g8f6 5.b1c3 d7d6 6.c1g5 -C50,"Rosentreter Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.d2d4 -C50,"Italian Variation, Four Knights Game",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b1c3 g8f6 -C50,"Deutz Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.e1g1 g8f6 5.d2d4 -C50,Hungarian Defense,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8e7 -C50,Half Giuoco Piano; Semi-Italian Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 d7d6 -C50,Rousseau Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f7f5 -C50,"Shilling (Kostic) Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 c6d4 -C51,Evans Gambit; C51,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 -C51,"Lange Variation, Evans Gambit",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b6 5.b4b5 c6a5 6.f3e5 g8h6 -C51,Evans Gambit Accepted,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 -C51,"Normal Position, Evans Gambit",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 -C51,"Ulvestad Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 9.d4d5 c6a5 10.c1b2 -C51,"Paulsen Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 9.d4d5 c6a5 10.c1b2 g8e7 -C51,"Fraser Attack; Mortimer, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 9.b1c3 c8g4 10.d1a4 -C51,"Goering Attack, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4c5 6.d2d4 e5d4 7.e1g1 d7d6 8.c3d4 c5b6 9.b1c3 c6a5 10.c1g5 -C51,"Stone-Ware Defense, Evans Gambit",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4d6 -C51,"Anderssen Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4e7 -C51,"Cordel Line, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4e7 6.d2d4 c6a5 -C51,"Hein Countergambit, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 d7d5 -C52,"Main Line, Evans Gambit; C52",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 -C52,"Leonhardt Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 b7b5 -C52,"Sokolsky Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 d7d6 7.c1g5 -C52,"Lasker Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 d7d6 7.e1g1 a5b6 -C52,"Tartakower Attack, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 d7d6 7.d1b3 -C52,"Pierce Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 -C52,"Schulen Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 7.e1g1 b7b5 -C52,"Waller Attack, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 7.e1g1 d7d6 8.d1b3 -C52,"Compromised Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 7.e1g1 d4c3 -C52,"Mieses Defense, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.d2d4 e5d4 7.e1g1 g8e7 -C52,"Slow Variation, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.e1g1 -C52,"Richardson Attack, Evans",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.b2b4 c5b4 5.c2c3 b4a5 6.e1g1 g8f6 7.d2d4 e8g8 8.f3e5 -C53,"Classical Variation, Italian; C53",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 -C53,"Labourdonnais Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 d7d6 5.d2d4 e5d4 6.c3d4 c5b6 -C53,"Alexandre Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 f7f5 -C53,Giuoco Pianissimo,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d3 -C53,"Center Attack, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 -C53,"Grevo Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 -C53,"Albin Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.e1g1 -C53,"Lewis Defense, Italian; Closed Variation",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 d8e7 -C53,"Mestel Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 d8e7 5.d2d4 c5b6 6.c1g5 -C54,C54,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 -C54,"Bird Attack, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.b2b4 -C54,"Cracow Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 c5b4 7.e1f1 -C54,"Moeller (Therkatz) Attack, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 c5b4 7.b1c3 f6e4 8.e1g1 b4c3 9.d4d5 -C54,"Therkatz-Herzog, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 c5b4 7.b1c3 f6e4 8.e1g1 b4c3 9.d4d5 c3f6 10.f1e1 c6e7 -C54,"Greco Variation, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.c3d4 c5b4 7.b1c3 f6e4 8.e1g1 e4c3 -C54,"Mason Gambit, Italian",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 f8c5 4.c2c3 g8f6 5.d2d4 e5d4 6.e1g1 -C55,Two Knights Defense; C55,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 -C55,De Riviere Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.c2c3 -C55,Modern Bishop's Opening,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d3 -C56,"Open Variation, Two Knights Defense; C56",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 -C56,"Perreux Variation, Two Knights Defense",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.f3g5 -C56,Scotch Gambit,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 -C56,Max Lange Attack,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f8c5 6.e4e5 -C56,"Loman Defense, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f8c5 6.e4e5 d7d5 7.e5f6 d5c4 8.f1e1 c8e6 9.f3g5 g7g6 -C56,"Marshall Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f8c5 6.e4e5 d7d5 7.e5f6 d5c4 8.f1e1 c5e7 9.f3g5 d8d5 10.b1c3 d5f5 -C56,"Double Gambit Accepted, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f6e4 -C56,"Nachmanson Gambit, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.d2d4 e5d4 5.e1g1 f6e4 6.b1c3 -C57,"Prussian Game; Knight Attack, Two Knights; C57",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 -C57,"Traxler; Wilkes-Barre Var, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 f8c5 -C57,"Trencianske-Teplice Gambit, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 f8c5 5.c4f7 e8e7 6.d2d4 -C57,"Ulvestad Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 b7b5 -C57,"Kurkin Gambit, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 b7b5 6.c4f1 h7h6 7.g5f7 -C57,"Kloss Gambit, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6b4 -C57,"Fritz Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6d4 -C57,"Berliner Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6d4 6.c2c3 b7b5 7.c4f1 f6d5 8.g5e4 d8h4 -C57,"Lolli Attack, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 f6d5 6.d2d4 -C57,"Fried Liver; Fegatello Attack, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 f6d5 6.g5f7 -C57,"Ponziani-Steintz Gambit, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 f6e4 -C58,"Polerio Defense, Two Knights; C58",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 -C58,"Bogoljubow Variation, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.d1f3 -C58,"Colman Variation, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.d1f3 a8b8 -C58,"Kieseritzky; Morphy Var, 2 Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.d2d3 -C58,"Yankovich Variation, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.d2d3 h7h6 7.g5f3 e5e4 8.d1e2 a5c4 9.d3c4 f8c5 10.f3d2 -C59,C59,1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.b5e2 -C59,"Suhle Defense, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.b5e2 h7h6 -C59,"Goering Variation, Two Knights",1.e2e4 e7e5 2.g1f3 b8c6 3.f1c4 g8f6 4.f3g5 d7d5 5.e4d5 c6a5 6.c4b5 c7c6 7.d5c6 b7c6 8.b5e2 h7h6 9.g5f3 e5e4 10.f3e5 -C60,Ruy Lopez; Spanish Opening; C60,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 -C60,"Bulgarian Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a5 -C60,"Rotary-Albany Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 b7b6 -C60,"Alapin Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8b4 -C60,"Alapin Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8b4 4.c2c3 b4a5 5.b5c6 d7c6 -C60,"Lucena Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8e7 -C60,"Sawyer's Gambit, Ruy Lopez; Spanish Countergambit",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d5 -C60,"Harding Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d5 4.f3e5 d8g5 5.e5c6 -C60,"Fricke Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d5 4.f3e5 d8g5 5.e1g1 -C60,"Nuremberg Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f6 -C60,"Brentano Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g7g5 -C60,"Barnes; Smyslov; Fianchetto Var, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g7g6 -C60,"Cozio Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8e7 -C60,"Tartakower Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8e7 4.d2d4 e5d4 5.f3d4 g7g6 6.b1c3 f8g7 7.c1e3 e8g8 8.d1d2 d7d5 -C60,"Paulsen Variation, Cozio Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8e7 4.b1c3 g7g6 -C60,"Vinogradov Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d8e7 -C60,"Frankfort; Gunderam Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d8f6 -C61,"Bird Defense, Ruy Lopez; C61",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 c6d4 -C61,"Paulsen Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 c6d4 4.f3d4 e5d4 5.e1g1 g8e7 -C62,"Steinitz Defense, Ruy Lopez; C62",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d6 -C62,"Nimzovich Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d6 4.d2d4 c8d7 5.b1c3 g8f6 6.b5c6 -C62,"Center Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 d7d6 4.d2d4 e5d4 5.e1g1 -C63,"Schliemann; Jaenisch Var, Ruy Lopez; C63",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 -C63,"Exchange Variation, Schliemann Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b5c6 -C63,"Schoenemann Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.d2d4 -C63,"Jaenisch Gambit Accepted, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.e4f5 -C63,"Kostic Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 f5e4 5.c3e4 f8e7 -C63,"Moehring Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 f5e4 5.c3e4 d7d5 6.f3e5 d5e4 7.e5c6 d8d5 -C63,"Tartakower Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 f5e4 5.c3e4 g8f6 -C63,"Soviet Youth Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 c6d4 5.e1g1 -C63,"Kostic Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f7f5 4.b1c3 g8f6 5.e4f5 f8c5 -C64,"Classical; Cordel Var, Ruy Lopez; C64",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 -C64,"Spanish Wing Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.b2b4 -C64,"Charousek Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 c5b6 -C64,"Konikowski Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 d7d5 -C64,"Cordel Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 f7f5 -C64,"Benelux Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 g8f6 5.d2d4 c5b6 6.e1g1 e8g8 -C64,"Boden Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.c2c3 d8e7 -C64,"Zaitsev Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.e1g1 c6d4 5.b2b4 -C64,"Zukertort Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 f8c5 4.e1g1 g8f6 5.c2c3 -C65,"Berlin Defense, Ruy Lopez; C65",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 -C65,"Kaufmann Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 f8c5 5.c1e3 -C65,"Anderssen Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 d7d6 5.b5c6 -C65,"Duras Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 d7d6 5.c2c4 -C65,"Mortimer Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 c6e7 -C65,"Mortimer Trap, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d3 c6e7 5.f3e5 c7c6 -C65,"Nyholm Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.d2d4 e5d4 5.e1g1 -C65,"Beverwijk Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f8c5 -C66,"Improved Steinitz Defense, Ruy Lopez; C66",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 -C66,"Hedgehog Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 f8e7 -C66,"Closed Bernstein Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 f8e7 7.c1g5 -C66,"Closed Showalter Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 f8e7 7.b5c6 -C66,"Tarrasch Trap, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 f8e7 7.f1e1 e8g8 -C66,"Closed Wolf Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 d7d6 5.d2d4 c8d7 6.b1c3 e5d4 -C66,"Fishing Pole Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6g4 -C67,"Rio Gambit Accepted, Ruy Lopez; C67",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 -C67,"Rosenthal Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 a7a6 -C67,"Rio de Janeiro Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 -C67,"Minckwitz Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d4e5 -C67,"Trifunovic Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 d7d5 -C67,"Pillsbury Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6b7 9.b2b3 -C67,"Zukertort Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6b7 9.c2c4 -C67,"Berlin; Rio de Janerio Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6b7 9.b1c3 e8g8 10.f1e1 -C67,"Winawer Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6b7 9.f3d4 e8g8 -C67,"Cordel Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 f8e7 6.d1e2 e4d6 7.b5c6 b7c6 8.d4e5 d6f5 -C67,"L'Hermet Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 e4d6 -C67,"Westerinen Line, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 g8f6 4.e1g1 f6e4 5.d2d4 e4d6 6.b5c6 d7c6 7.d4e5 d6e4 -C68,"Morphy Defense, Ruy Lopez; C68",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 -C68,"Exchange Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 -C68,"Lutikov Variation, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 b7c6 -C68,"Keres Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 b7c6 5.b1c3 -C68,"Romanovsky Variation, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 b7c6 5.b1c3 f7f6 6.d2d3 -C68,"Alekhjne Variation, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.d2d4 e5d4 6.d1d4 d8d4 7.f3d4 f8d6 -C68,"Barendregt-Fischer Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 -C68,"King's Bishop Variation, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 f8d6 -C68,"Alapin Gambit, Ruy Lopez Exchange",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 c8g4 6.h2h3 h7h5 -C69,"Gligoric Variation, Ruy Lopez; C69",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 f7f6 -C69,"Bronstein Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5c6 d7c6 5.e1g1 d8d6 -C70,"Morphy Defense, Ruy Lopez; C70",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 -C70,"Caro Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 b7b5 -C70,"Graz Variation, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 b7b5 5.a4b3 f8c5 -C70,"Furman-Taimanov; Wing Var, Ruy; Norwegian Variation",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 b7b5 5.a4b3 c6a5 -C70,"Nightingale Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 b7b5 5.a4b3 c6a5 6.b3f7 -C70,"Alapin's Defense Deferred, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 f8b4 -C70,"Classical Defense Deferred, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 f8c5 -C70,"Schliemann Defense Deferred, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 f7f5 -C70,"Jaenisch Gambit Deferred, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 f7f5 5.e4f5 -C70,"Cozio Defense Deferred, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8e7 -C71,Steinitz Defense Deferred; Ruy Lopez; C71,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 -C71,"Modern Steinitz Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 -C71,"Keres Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c4 -C71,"Noah's Ark Trap, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.d2d4 b7b5 6.a4b3 e5d4 7.f3d4 c6d4 8.d1d4 c7c5 9.d4d5 c8e6 10.d5c6 e6d7 -C72,C72,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.e1g1 -C73,C73,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.a4c6 b7c6 -C73,"Richter Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.a4c6 b7c6 6.d2d4 -C73,"Alapin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.a4c6 b7c6 6.d2d4 f7f6 -C74,C74,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 -C74,"Siesta Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 f7f5 -C74,"Kopaiev Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 f7f5 6.e4f5 c8f5 7.e1g1 -C75,C75,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 c8d7 -C76,C76,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 d7d6 5.c2c3 c8d7 6.d2d4 g7g6 -C77,C77,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 -C77,Treybel; Flohr; Exchange Var Deferred,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.a4c6 -C77,"Bayreuth Variation, ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.a4c6 -C77,"Jaffe Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.c2c3 -C77,"Anderssen Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d2d3 -C77,"Duras Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d2d3 d7d6 6.c2c4 -C77,"Mackenzie Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d2d4 -C77,"Center Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d2d4 e5d4 -C77,"Nimzovich; Tarrasch Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.b1c3 -C77,"Wormald Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.d1e2 -C78,"Normal Variation, Ruy Lopez; C78",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 -C78,"Shannon Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 b7b5 6.a4b3 c8b7 7.f3g5 d7d5 -C78,"Wing Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 b7b5 6.a4b3 f8e7 7.a2a4 -C78,"Neo-Steinitz Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 b7b5 6.a4b3 d7d6 -C78,"Moeller Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8c5 -C79,"Central Countergambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 d7d5 -C79,"Russian Defense, Ruy Lopez; C79; Lasker Defense",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 d7d6 -C79,"Brix Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 g7g6 -C80,"Tarrasch; Open Variation, Ruy Lopez; C80",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 -C80,"Schlechter Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.a2a4 c6d4 -C80,"Berger Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.a2a4 c6d4 9.f3d4 e5d4 10.b1c3 -C80,"Harksen Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.c2c4 -C80,"Bernstein Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.b1d2 -C80,"Karpov Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.b1d2 e4c5 10.c2c3 d5d4 -C80,"Zukertort Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c6e7 -C80,"Richter Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.d4d5 -C80,"Friess Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.f3e5 -C80,"Riga Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 e5d4 -C80,"Knoore Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.b1c3 -C80,"Tartakower Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d1e2 -C80,"Skipworth Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.f1e1 d7d5 -C81,Keres; Estonian; Howell; Moscow Var,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 -C81,"Howell Attack, Ruy Lopez; C81",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.d1e2 -C81,"Adam Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.d1e2 f8e7 10.c2c4 -C81,"Ekstrom Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.d1e2 f8e7 10.f1d1 e8g8 11.c2c4 -C82,C82,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 -C82,"Italian Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 -C82,"St Petersburg Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 10.b1d2 -C82,"Dilworth; Kleczynski Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 10.b1d2 e8g8 11.b3c2 -C82,"Motzko Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 10.d1d3 -C82,"Nenarokov Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8c5 10.d1d3 c6e7 -C82,"Berlin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 e4c5 -C83,"Malkin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 -C83,"Breslau Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f6e4 6.d2d4 b7b5 7.a4b3 d7d5 8.d4e5 c8e6 9.c2c3 f8e7 10.f1e1 e8g8 11.f3d4 -C84,"Closed Defense, Ruy Lopez; C84",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 -C84,"Center Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d2d4 -C84,"Basque Gambit, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d2d4 e5d4 7.e4e5 f6e4 8.c2c3 -C84,"Lopez Four Knights, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.b1c3 -C85,Delayed Exchange Ruy Lopez Deferred; C85,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.a4c6 -C86,"Worrall Attack, Ruy Lopez; C86",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d1e2 -C86,"Schlechter Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d1e2 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 -C86,"English Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.d1e2 b7b5 7.a4b3 e8g8 8.c2c3 d7d6 9.d2d4 c8g4 -C87,C87,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 -C87,"Averbakh Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 d7d6 -C87,"Kecskemet; Timbuktu Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 d7d6 7.c2c3 e8g8 8.d2d4 c8d7 9.b1d2 d7e8 -C87,"Romanovsky Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 d7d6 7.c2c3 e8g8 8.d2d4 c8d7 9.b1d2 e5d4 10.c3d4 c6b4 -C88,C88,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 -C88,"Trajkovic Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 c8b7 -C88,"Pseudo-Marshall Var, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 c8b7 8.c2c3 d7d5 9.e4d5 f6d5 10.f3e5 c6e5 -C88,"Rosen Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.d2d4 -C88,"Anti-Marshall Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.a2a4 -C89,C89,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 -C89,"Marshall Attack, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 -C89,"Steiner Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 9.e4d5 e5e4 -C89,"Kevitz Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 9.e4d5 f6d5 10.f3e5 c6e5 11.e1e5 c7c6 12.b3d5 c6d5 13.d2d4 e7d6 14.e5e3 -C89,"Geller Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 9.e4d5 f6d5 10.f3e5 c6e5 11.e1e5 c7c6 12.d2d4 e7d6 13.e5e1 d8h4 14.g2g3 h4h3 -C89,"Fischer Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d5 9.e4d5 f6d5 10.f3e5 c6e5 11.e1e5 c7c6 12.g2g3 -C90,C90,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 -C90,"Balla Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 c6a5 9.b3c2 c7c5 10.d2d4 d8c7 -C90,"Suetin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.a2a3 -C90,"Lutikov Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.b3c2 -C90,"Pilnik Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.d2d3 -C90,"Suetin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 d7d6 9.a2a3 -C90,"Leonhardt Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 e8g8 8.c2c3 c6a5 9.b3c2 c7c5 10.d2d4 d8c7 11.h2h3 a5c6 12.d4d5 c6d8 13.b1d2 g7g5 -C91,"Yates Variation, Ruy; C91",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.d2d4 -C91,"Bogoljubow; Counterthrust Var, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.d2d4 c8g4 -C92,C92,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 -C92,"Keres Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 a6a5 -C92,"Flohr; Zaitsev; Lenzerheide Var, Ruy",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c8b7 -C92,"Kholmov Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c8e6 -C92,"Spanish Benoni, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 d8c7 12.d4d5 -C92,"Keres Defense, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 f6d7 -C92,"Zaitsev System, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 f8e8 -C93,"Smyslov Variation, Ruy Lopez; C93",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 h7h6 -C94,"Breyer; Retreat Variation, Ruy Lopez; C94",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 -C95,C95,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 -C95,"Borisenko Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 b8d7 -C95,"Arseniev Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 b8d7 11.c3c4 -C95,"Romanishin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 b8d7 11.b1d2 c8b7 12.b3c2 f8e8 13.d2f1 e7f8 14.c1g5 -C95,"Simagin Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6b8 10.d2d4 b8d7 11.f3h4 -C96,C96,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 -C96,"Borisenko Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 a5c6 -C96,"Keres Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 f6d7 -C97,"Classical Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 d8c7 12.b1d2 -C98,"Rauzer Variation, Ruy Lopez",1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 d8c7 12.b1d2 a5c6 13.d4e5 d6e5 14.a2a4 -C99,C99,1.e2e4 e7e5 2.g1f3 b8c6 3.f1b5 a7a6 4.b5a4 g8f6 5.e1g1 f8e7 6.f1e1 b7b5 7.a4b3 d7d6 8.c2c3 e8g8 9.h2h3 c6a5 10.b3c2 c7c5 11.d2d4 d8c7 12.b1d2 c5d4 -D00,Queen Pawn Game; Close Opening; D00,1.d2d4 d7d5 -D00,Sarratt Attack,1.d2d4 d7d5 2.c1f4 -D00,"Steinitz Countergambit, Queen Pawn Game",1.d2d4 d7d5 2.c1f4 c7c5 -D00,Morris Counter-Gambit,1.d2d4 d7d5 2.c1f4 c7c5 3.e2e4 d5e4 -D00,"Bishop Attack; Levitsky Attack, Queen Pawn Game",1.d2d4 d7d5 2.c1g5 -D00,Zot,1.d2d4 d7d5 2.c1g5 -D00,"Welling Variation, Queen Pawn Game",1.d2d4 d7d5 2.c1g5 c8g4 -D00,"Euwe Variation, Queen Pawn Game",1.d2d4 d7d5 2.c1g5 h7h6 3.g5h4 c7c6 4.g1f3 d8b6 -D00,"Stonewall Attack, Queen Pawn Game",1.d2d4 d7d5 2.e2e3 g8f6 3.f1d3 -D00,Stonewall Attack,1.d2d4 d7d5 2.e2e3 g8f6 3.f1d3 c7c5 4.c2c3 -D00,Blackmar-Diemer Gambit,1.d2d4 d7d5 2.e2e4 -D00,"Fritz Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.f1c4 -D00,"Diemer-Rosenberg Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.c1e3 -D00,"Pohlmann Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.f2f3 f7f5 -D00,"Mieses; Nimzovich Var, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.f2f3 b8c6 -D00,"Polish Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 -D00,"Grosshans Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c8d7 -D00,"Zeller Defesne, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c8f5 -D00,"Zeller Defesne, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c8f5 4.f2f3 e4f3 5.d1f3 f5c8 -D00,"Soller Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c8f5 4.f2f3 g8f6 5.f1c4 -D00,"Dries Counter-Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 c7c5 -D00,"Lemberger Counter-Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 -D00,"Soller; Lemberger Var, BDG; Diemer Attack",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.c1e3 -D00,"Endgame Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.d4e5 -D00,"Rasmussen Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.g1e2 -D00,Lange Gambit; Alfred Lange Gambit; Simple Variation,1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.c3e4 -D00,"Sneiders Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e5 4.d1h5 -D00,"Rasa-Studier Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e6 4.c1e3 -D00,"Giertz-Peters Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 e7e6 4.f2f3 -D00,"Netherlands Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 f7f5 -D00,"Vienna Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 -D00,"Studier-Rasa Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.c1e3 -D00,Von Popiel Gambit,1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.c1g5 -D00,"Zilbermints Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.c1g5 c8f5 5.g5f6 e7f6 6.g2g4 f5g6 7.d1e2 f8b4 8.e2b5 -D00,Blackmar-Diemer Gambit,1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 -D00,Hans Mullers; Vienna V,1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 -D00,"Soller; Vienna Var, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.f1c4 -D00,"Tejler Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.c1f4 -D00,"Sperling Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.d4d5 -D00,"Diemer Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.f3e4 -D00,"Kampars Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.g2g4 f5g6 6.g4g5 f6d5 7.f3e4 -D00,"Gunderam Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c8f5 5.g2g4 f5g6 6.h2h4 -D00,"Brombacher; Daberitz Var, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 c7c5 -D00,"Langeheinecke Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4e3 -D00,"Elbert Counter-Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e7e5 -D00,"Weinsbach Declination, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e7e6 -D00,"Pfrang Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e7e6 5.f3e4 f8b4 6.f1d3 b4c3 7.b2c3 f6e4 8.c1e3 -D00,"Gunderam; Tartakower Var, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 c8f5 -D00,"Teichmann Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 c8g4 -D00,"Kaulich Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 c7c5 -D00,"Ziegler; Gunderam's 2nd Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 c7c6 -D00,"Duthilleuk Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 e7e6 6.f1d3 b8c6 7.c1g5 f8e7 8.c3e4 -D00,"Bogoljubow Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 -D00,"Mad Dog Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f1c4 f8g7 7.h2h4 -D00,"Nimzovich Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f1c4 f8g7 7.f3e5 -D00,"Kloss Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f1c4 f8g7 7.e1g1 e8g8 8.g1h1 -D00,"Studier Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f1c4 f8g7 7.e1g1 e8g8 8.d1e1 -D00,"Diemer Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.c1f4 -D00,"Peters Attack, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 g7g6 6.f3e5 -D00,"Gunderam Defense, BDG; Rook Pawn Defense",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 h7h5 -D00,"Schuttler Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 b8d7 -D00,"Pietrowsky Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.g1f3 b8c6 -D00,"Ryder Variation, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.d1f3 -D00,"Tautvaisis Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.d1f3 b8c6 -D00,"Tejler Gambit, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 e4f3 5.d1f3 d8d4 6.c1e3 d4g4 7.f3f2 f6e4 8.c3e4 g4e4 9.e1c1 b8c6 10.f1d3 -D00,"Albrecht; Karlshruhle Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 g7g6 -D00,"Lamb Defense, BDG",1.d2d4 d7d5 2.e2e4 d5e4 3.b1c3 g8f6 4.f2f3 b8c6 -D00,"Mason Attack, Queen Pawn Game",1.d2d4 d7d5 2.f2f4 -D00,Zurich Gambit,1.d2d4 d7d5 2.g2g4 -D00,Chigorin; Ponziani; Veresov,1.d2d4 d7d5 2.b1c3 -D00,"Alburt Defense, QP",1.d2d4 d7d5 2.b1c3 c8f5 -D00,Anti-Veresov,1.d2d4 d7d5 2.b1c3 c8g4 -D00,"Irish Gambit, QP",1.d2d4 d7d5 2.b1c3 c7c5 -D00,"Shaviliuk Gambit, QP",1.d2d4 d7d5 2.b1c3 e7e5 -D00,"Dutch System, QP",1.d2d4 d7d5 2.b1c3 f7f5 -D00,"Fianchetto Defense, QP",1.d2d4 d7d5 2.b1c3 g7g6 3.g1f3 f8g7 -D00,Hubsch Gambit,1.d2d4 d7d5 2.b1c3 g8f6 3.e2e4 f6e4 -D00,Amazon Attack,1.d2d4 d7d5 2.d1d3 -D00,Siberian Attack,1.d2d4 d7d5 2.d1d3 b8c6 3.b1c3 -D01,Betbeder; Veresov; Levitzky; Parisian,1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 f7f5 -D01,Richter-Veresov Opening; D01,1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 -D01,"Veresov Variation, QP",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 c8f5 4.g5f6 -D01,"Richter Variation, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 c8f5 4.f2f3 -D01,"Classical Defense, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 e7e6 4.g1f3 -D01,"Two Knights System, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 b8d7 4.g1f3 -D01,"Grunfeld Defense, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 b8d7 4.g1f3 g7g6 -D01,"Boyce Defense, Veresov",1.d2d4 d7d5 2.b1c3 g8f6 3.c1g5 f6e4 -D02,"Zukertort Variation, QP; D02",1.d2d4 d7d5 2.g1f3 -D02,"Anti-Torre, QP",1.d2d4 d7d5 2.g1f3 c8g4 -D02,Anti-Torre,1.d2d4 d7d5 2.g1f3 c8g4 3.f3e5 g4f5 4.g2g4 -D02,Queen's Gambit Reversed; Krause Variation,1.d2d4 d7d5 2.g1f3 c7c5 -D02,"Chandler Gambit, QP",1.d2d4 d7d5 2.g1f3 c7c5 3.g2g3 c5d4 4.f1g2 -D02,"Chigorin Variation, QP",1.d2d4 d7d5 2.g1f3 b8c6 -D02,"Symmetrical Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 -D02,London System; Queen's Bishop Opening,1.d2d4 d7d5 2.g1f3 g8f6 3.c1f4 -D02,"Poisoned Pawn Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c1f4 c7c5 4.e2e3 d8b6 5.b1c3 -D02,"Zilbermints Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c2c4 b7b5 -D02,Pseudo-Catalan,1.d2d4 d7d5 2.g1f3 g8f6 3.g2g3 -D02,Barry Attack,1.d2d4 g8f6 2.g1f3 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.f1e2 -D03,"Torre Attack, QP; D03",1.d2d4 d7d5 2.g1f3 g8f6 3.c1g5 -D03,"Breyer Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c1g5 e7e6 4.e2e3 c7c5 5.c2c3 d8b6 -D03,"Grunfeld Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c1g5 g7g6 -D03,"Gossip Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.c1g5 f6e4 -D04,Colle System; D04,1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 -D04,"Bishop Defense, QP; Anti-Colle",1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 c8f5 -D05,"Classical Defense, Colle System; D05",1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 e7e6 -D05,"Zukertort Variation, QP",1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 e7e6 4.f1d3 -D05,"Rubinstein Attack, Colle",1.d2d4 d7d5 2.g1f3 g8f6 3.e2e3 e7e6 4.f1d3 c7c5 5.b2b3 -D06,Queen's Gambit; Aleppo Gambit; D06,1.d2d4 d7d5 2.c2c4 -D06,"Zilbermints Gambit, QGD",1.d2d4 d7d5 2.c2c4 b7b5 -D06,"Brieger Defense; Sahovic Defense, QGD; Baltic Defense",1.d2d4 d7d5 2.c2c4 c8f5 -D06,"Pseudo-Slav, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.b1c3 e7e6 4.g1f3 c7c6 -D06,"Pseudo-Chigorin, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.b1c3 e7e6 4.g1f3 b8c6 -D06,"Queen Attack, Baltic Defens, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.b1c3 e7e6 4.d1b3 -D06,"Austrian Defense; Summetrical Defense, QGD",1.d2d4 d7d5 2.c2c4 c7c5 -D06,"Gusev Countergambit, QGD",1.d2d4 d7d5 2.c2c4 c7c5 3.c4d5 g8f6 -D06,"Haberditz Variation, QGD",1.d2d4 d7d5 2.c2c4 c7c5 3.c4d5 g8f6 4.e2e4 f6e4 5.d4c5 d8a5 -D06,"Salvio Countergambit, QGD",1.d2d4 d7d5 2.c2c4 c7c5 3.d4c5 d5d4 -D06,"Tartakower Gambit, QGD",1.d2d4 d7d5 2.c2c4 b8c6 3.b1c3 e7e5 -D06,"Modern Gambit, Chigorin Defense",1.d2d4 d7d5 2.c2c4 b8c6 3.b1c3 g8f6 4.g1f3 d5c4 -D06,"Alekhine Variation, Chigorin Defense",1.d2d4 d7d5 2.c2c4 b8c6 3.g1f3 c8g4 4.d1a4 -D06,"Lazard Gambit, Chigorin Defense",1.d2d4 d7d5 2.c2c4 b8c6 3.g1f3 e7e5 -D06,"Cocquio Counter Gambit, QGD; Tan Gambit",1.d2d4 d7d5 2.c2c4 g8f6 3.c4d5 c7c6 -D07,"Chigorin Defense, QGD; D07",1.d2d4 d7d5 2.c2c4 b8c6 -D07,"Exchange Variation, Chigorin Defense",1.d2d4 d7d5 2.c2c4 b8c6 3.c4d5 d8d5 -D07,Costa's Line,1.d2d4 d7d5 2.c2c4 b8c6 3.c4d5 d8d5 4.e2e3 e7e5 5.b1c3 f8b4 6.c1d2 b4c3 7.d2c3 e5d4 8.g1e2 -D07,"Janowski Variation, QGD",1.d2d4 d7d5 2.c2c4 b8c6 3.b1c3 d5c4 4.g1f3 -D08,"Albin Countergambit; Cavalotti Var, QGD; D08",1.d2d4 d7d5 2.c2c4 e7e5 -D08,"Lasker Trap, QGD",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.e2e3 f8b4 5.c1d2 d4e3 -D08,"Normal Line, Albin Countergambit, QGD",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.g1f3 -D08,"Tartakower Defense, QGD",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.g1f3 c7c5 -D08,"Alapin Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.g1f3 b8c6 5.b1d2 -D09,"Fianchetto Variation, Albin Countergambit; D09",1.d2d4 d7d5 2.c2c4 e7e5 3.d4e5 d5d4 4.g1f3 b8c6 5.g2g3 -D10,"Slav Defense; Czech Defense, QGD; D10",1.d2d4 d7d5 2.c2c4 c7c6 -D10,"Exchange Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.c4d5 -D10,Slav Pawn Game,1.d2d4 d7d5 2.c2c4 c7c6 3.e2e3 -D10,"Diemer Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.e2e4 -D10,"Alekhine Attack, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.b1c3 d5c4 4.e2e4 -D10,"Winawer Counter Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.b1c3 e7e5 -D10,"Anti-Winawer Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.b1c3 e7e5 4.e2e4 -D11,"Modern Line, Slav; D11",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 -D11,Slav Bishop's Game,1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 c8f5 -D11,"Bonet Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.c1g5 -D11,"Quiet Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 -D11,"Breyer Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1d2 -D12,"Schallopp Defense, Slav; D12",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 c8f5 -D12,"Amsterdam Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 c8f5 5.c4d5 c6d5 6.b1c3 -D12,"Landau Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 c8f5 5.c4d5 c6d5 6.d1b3 d8c8 7.c1d2 e7e6 8.b1a3 -D12,"Pin Defense, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.e2e3 c8g4 -D13,"Exchange Variation, Slav; D13",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.c4d5 -D14,"Symmetrical Line, Slav; D14",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.c4d5 c6d5 5.b1c3 b8c6 6.c1f4 c8f5 -D14,"Trifunovic Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.c4d5 c6d5 5.b1c3 b8c6 6.c1f4 c8f5 7.e2e3 e7e6 8.d1b3 f8b4 -D15,"Three Knights Variation, Slav; D15",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 -D15,"Chameleon Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 a7a6 -D15,"Advance System, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 c6c5 -D15,"Two Knights Attack, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 -D15,"Alekhine Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.e2e3 -D15,"Alekhine Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.e2e3 b7b5 6.a2a4 b5b4 -D15,"Geller Variation; Geller-Tolush Var, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.e2e4 -D15,"Schlechter Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 g7g6 -D15,"Suchting Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d8b6 -D16,"Alapin Variation, Slav; D16",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 -D16,"Steiner Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8g4 -D16,"Soultanbeieff Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 e7e6 -D16,"Smyslov Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 b8a6 -D17,Czech Defense; Open Slav Defense; D17,1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 -D17,"Krause Attack, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 -D17,"Wiesbaden Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 e7e6 -D17,"Sharp Line, Wiesbaden Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 e7e6 7.f2f3 f8b4 8.e2e4 -D17,"Fazekas Gambit, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 b8a6 7.e2e4 -D17,"Carlsbad Variation, Slav",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3e5 b8d7 7.e5c4 d8c7 8.g2g3 e7e5 -D17,"Baarn Variation, Slav; Bled Attack",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.f3h4 -D18,"Dutch Variation, Slav; D18",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.e2e3 -D18,"Mareschall Variation, Slav; Lasker Variation",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.e2e3 b8a6 -D19,"Main Line, Czech Variation, Slav; D19",1.d2d4 d7d5 2.c2c4 c7c6 3.g1f3 g8f6 4.b1c3 d5c4 5.a2a4 c8f5 6.e2e3 e7e6 7.f1c4 f8b4 8.e1g1 e8g8 9.d1e2 -D20,"Old Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e3 -D20,"Saduleto Variation, QGA; Central Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 -D20,"Greco Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 b7b5 -D20,"Rubinstein Variation, QGA��",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 c7c5 -D20,"Yefimov Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 c7c5 4.d4d5 b7b5 -D20,"Linares Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 c7c5 4.d4d5 g8f6 5.b1c3 b7b5 -D20,"McDonnell Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 e7e5 -D20,"Somov Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 e7e5 4.f1c4 -D20,"Versov; Betbeder; Schwartz Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 f7f5 -D20,"Modern Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 b8c6 -D20,"Alekhine System, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.e2e4 g8f6 -D21,"Blackburne's Move, QGA; Normal Variation, QGA; D21",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 -D21,"Alekhine Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 -D21,"Slav Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 b7b5 -D21,"Gunsberg Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 c7c5 -D21,"Prianishenmo Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 c7c5 4.d4d5 g8f6 5.b1c3 e7e6 6.e2e4 e6d5 7.e4e5 -D21,"Rosenthal Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 e7e6 -D21,"Godes Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 b8d7 -D22,D22,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 4.e2e3 -D22,"Haberditz Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 4.e2e3 b7b5 -D22,"Alekhine Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 4.e2e3 c8g4 -D22,"Borisenko-Furman Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 a7a6 4.e2e4 -D23,D23,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 -D23,"Mannheim Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.d1a4 -D24,"Showalter Variation, QGA; D24",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.b1c3 -D24,"Bogoljubow Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.b1c3 a7a6 5.e2e4 -D25,D25,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 -D25,"Flohr; Winawer Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 c8e6 -D25,"Larsen; Janowski; Modern Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 c8g4 -D25,"Smyslov Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 g7g6 -D25,Queen's Gambit Accepted Deferred,1.d2d4 d7d5 2.g1f3 g8f6 3.c2c4 d5c4 -D26,Traditional System QGA; D26,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 -D26,"Classical Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 -D26,"Steinitz Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 c5d4 -D26,"Development Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 b8c6 -D27,"Rubinstein Variation, QGA; D27",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 -D27,"Furman Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d4c5 f8c5 -D27,"Russian Gambit, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.e3e4 -D28,"Alekhine System, Classical Defense, QGA; D28",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 -D28,"Accelerated Fianchetto, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b7b5 -D28,"Counter Fianchetto Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b8c6 8.d4c5 -D28,"Four Knights Variation, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b8c6 8.b1c3 -D29,D29,1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b7b5 8.c4b3 c8b7 -D29,"Smyslov Variation, Classical Defense, QGA",1.d2d4 d7d5 2.c2c4 d5c4 3.g1f3 g8f6 4.e2e3 e7e6 5.f1c4 c7c5 6.e1g1 a7a6 7.d1e2 b7b5 8.c4b3 c8b7 9.f1d1 b8d7 10.b1c3 f8d6 -D30,D30,1.d2d4 d7d5 2.c2c4 e7e6 -D30,"Pseudo-Tarrasch, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 c7c5 -D30,"Bishop Attack, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 c7c5 4.c4d5 e6d5 5.c1g5 -D30,"Anti-Noteboom Gambit, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 c7c6 4.b1c3 d5c4 5.g2g3 -D30,"Traditional Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 -D30,"Vienna Variation, QGD��",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 f8b4 -D30,"Duras Variation, QGD; Capablanca Variation",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 h7h6 -D30,"Hastings Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 h7h6 5.g5f6 d8f6 6.b1c3 c7c6 7.d1b3 -D30,"Capablanca Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.b1d2 -D30,"Pseudo-Meran; Semi-Slav, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.e2e3 c7c6 -D30,"Quiet Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.e2e3 c7c6 5.b1d2 -D30,"Semmering Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.g1f3 g8f6 4.e2e3 c7c6 5.b1d2 b8d7 6.f1d3 c6c5 -D31,"Baltic Defense, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.c4d5 f5b1 4.d1a4 c7c6 5.d5c6 b8c6 -D31,"Argentinian Gambit, QGD",1.d2d4 d7d5 2.c2c4 c8f5 3.c4d5 f5b1 4.d1a4 c7c6 5.d5c6 b8c6 6.a1b1 d8d4 -D31,"Queen's Knight Variation, QGD; D31",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 -D31,"Janowski Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 a7a6 -D31,"Alapin Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 b7b6 -D31,"Alatortsev; Petrosian, Charousek Var, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 f8e7 -D31,"Miladinovic Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 f8e7 4.e2e4 d5e4 5.f2f3 -D31,"Portisch Gambit, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.e2e3 f7f5 5.g2g4 -D31,"Gunderam Gambit, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.e2e4 d5e4 5.f2f3 -D31,"Noteboom Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.g1f3 d5c4 -D31,"Abrahams; Noteboom; Klaus Junge Var, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.g1f3 d5c4 5.a2a4 f8b4 6.e2e3 b7b5 7.c1d2 a7a5 -D31,"Anti-Noteboom Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.g1f3 d5c4 5.c1g5 -D31,"Beliavsky Line, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c6 4.g1f3 d5c4 5.c1g5 f7f6 -D32,"Tarrasch Defense, QGD; D32",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 -D32,"Schara-Hennig; Duisburg Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 c5d4 -D32,"Von Hennig Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 c5d4 5.d1d4 b8c6 6.d4d1 e6d5 7.d1d5 c8e6 -D32,"Tarrasch Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.d4c5 d5d4 6.c3a4 b7b5 -D32,"Marshall Gambit, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.e2e4 -D32,"Two Knights Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 -D32,"Grunfeld Gambit, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.d4c5 d5d4 7.c3a4 b7b5 -D32,"Symmetrical Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.e2e3 g8f6 5.g1f3 b8c6 -D33,"Lodz; Schlecter; Rubinstein Var, QGD; D33",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 -D33,"Folkestone; Swedish Var, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 c5c4 -D33,"Prague Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 -D33,"Wagner Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 c8g4 -D34,D34,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 -D34,"Rubinstein; Normal Position, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 -D34,"Carlsbad Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 -D34,"Endgame Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 c8e6 -D34,"Bogoljubow Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 c8e6 10.a1c1 c5c4 -D34,"Advance Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 c5c4 -D34,"Spassky Variation, Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.c1g5 c5d4 10.f3d4 -D34,"Reti Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.d4c5 e7c5 10.c3a4 -D34,Classical Tarrasch Gambit,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 c7c5 4.c4d5 e6d5 5.g1f3 b8c6 6.g2g3 g8f6 7.f1g2 f8e7 8.e1g1 e8g8 9.d4c5 d5d4 -D35,D35,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 -D35,"Harrwitz; Rubinstein Var, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1f4 -D35,"Exchange Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c4d5 -D35,"Positional Variation, Exchange Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c4d5 e6d5 5.c1g5 -D35,"Saemisch Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c4d5 e6d5 5.g1f3 b8d7 6.c1f4 -D36,"Reshevsky Variation, QGD; D36",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c4d5 e6d5 5.c1g5 c7c6 6.d1c2 -D37,"Three Knights Variation, QGD; D37",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 -D37,"Harrwitz Attack, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 f8e7 5.c1f4 -D38,"Ragozin Variation, QGD; D38",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 f8b4 -D38,"Alekhine Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 f8b4 5.d1a4 -D39,"Vienna Variation, QGD; D39",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 f8b4 5.c1g5 d5c4 -D40,"Semi-Tarrasch Variation, QGD; D40",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c5 -D40,"Pillsbury Variation, Semi-Tarrasch",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c5 5.c1g5 -D41,"San Sebastian Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c5 5.c4d5 f6d5 6.e2e4 d5c3 7.b2c3 c5d4 8.c3d4 f8b4 9.c1d2 b4d2 -D42,D42,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c5 5.c4d5 f6d5 6.e2e3 b8c6 7.f1d3 -D43,D43,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 -D43,"Anti-Meran Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 -D44,Semi-Slav Defense Accepted; D44,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 -D44,"Botvinnik Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 6.e2e4 b7b5 -D44,"Ekstrom Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 6.e2e4 b7b5 7.e4e5 h7h6 8.g5h4 g7g5 9.e5f6 g5h4 10.f3e5 -D44,"Lilienthal Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 6.e2e4 b7b5 7.e4e5 h7h6 8.g5h4 g7g5 9.f3g5 h6g5 10.h4g5 b8d7 -D44,"Alatortsev System, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 d5c4 6.e2e4 b7b5 7.e4e5 h7h6 8.g5h4 g7g5 9.f3g5 f6d5 -D44,Anti-Moscow Gambit,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.c1g5 h7h6 6.g5h4 -D44,"Stonewall Defense, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 f6e4 6.f1d3 f7f5 -D44,"Vienna Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 d5c4 -D45,D45,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 -D45,"Acclerated Meran, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 a7a6 -D45,"Normal Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 -D45,Rubinstein; anti-Meran,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f3e5 -D45,"Stoltz Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.d1c2 -D45,"Center Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.d1c2 f8d6 7.e3e4 -D45,"Mikhalchishin Line, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.d1c2 f8d6 7.e3e4 d5e4 8.c3e4 f6e4 9.c2e4 e6e5 10.d4e5 -D45,"Shabalov Attack, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.d1c2 f8d6 7.g2g4 -D46,D46,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 -D46,"Romi Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 f8b4 -D46,"Chigorin Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 f8d6 -D46,"Bogoljubow Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 f8e7 -D47,"Meran Variation, QGD; D47",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 -D47,Lundin; Neo-Meran,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 b5b4 -D47,"Wade Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 c8b7 -D47,"Larsen Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 c8b7 9.e3e4 b5b4 10.c3a4 c6c5 -D48,"Reynolds Variation, QGD; D48",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 -D48,"Pirc Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 b5b4 -D48,"Old Variation, Semi-Slav",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 c6c5 10.e4e5 -D48,"Old Meran Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e1g1 -D49,"Blumenfeld Variation, QGD; D49",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 c6c5 10.e4e5 c5d4 11.c3b5 -D49,"Sozin Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 c6c5 10.e4e5 c5d4 11.c3b5 d7e5 -D49,"Stahlberg Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.g1f3 c7c6 5.e2e3 b8d7 6.f1d3 d5c4 7.d3c4 b7b5 8.c4d3 a7a6 9.e3e4 c6c5 10.e4e5 c5d4 11.c3b5 d7e5 12.f3e5 a6b5 -D50,"Modern Variation, QGD; D50",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 -D50,"Uhlmann Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.g1f3 h7h6 6.g5h4 e8g8 7.a1c1 d5c4 -D50,Been & Koomen; Dutch & Peruvian,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 c7c5 -D50,"Canal; Venice Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 c7c5 5.c4d5 d8b6 -D50,"Primitive Pillsbury Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 c7c5 5.g1f3 c5d4 6.d1d4 -D51,"Knight Defense, QGD; D51",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 -D51,"Manhattan; Westphalia Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 f8b4 -D51,"Westphalian Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 f8b4 6.g1f3 c7c5 -D51,"Alekhine Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.g1f3 c7c6 6.e2e4 -D51,"Alekhine Gambit, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.g1f3 h7h6 6.g5h4 d5c4 -D52,D52,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.g1f3 -D52,"Cambridge Springs; Pillsbury Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.g1f3 d8a5 -D52,"Bogoljubov Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.g1f3 d8a5 7.f3d2 f8b4 8.d1c2 -D52,"Argentine Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 b8d7 5.e2e3 c7c6 6.g1f3 d8a5 7.f3d2 f8b4 8.d1c2 e8g8 9.g5h4 -D53,D53,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 -D53,"Heral Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.g5f6 -D53,"Lasker Defense, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 f6e4 -D54,"Neo-Orthodox Variation, QGD; D54",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.a1c1 -D55,D55,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 -D55,"Pillsbury Attack, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b7b6 7.f1d3 c8b7 8.c4d5 e6d5 9.f3e5 -D55,"Neo Orthodox Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 -D55,"Anti-Tartakower Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5f6 -D55,"Petrosian Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5f6 e7f6 8.a1c1 c7c6 9.f1d3 b8d7 10.e1g1 d5c4 -D56,D56,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 -D56,"Lasker Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 f6e4 8.h4e7 d8e7 -D56,"Teichmann Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 f6e4 8.h4e7 d8e7 9.d1c2 -D57,D57,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 f6e4 8.h4e7 d8e7 9.c4d5 -D57,"Bernstein Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 f6e4 8.h4e7 d8e7 9.c4d5 e4c3 10.b2c3 -D58,"Tartakower Variation, QGD; D58",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 b7b6 -D59,"Exchange Variation, Tartakower Defense, QGD; D59",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 h7h6 7.g5h4 b7b6 8.c4d5 f6d5 -D60,"Orthodox Variation, QGD; D60",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 -D60,"Botvinnik Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.f1d3 -D60,"Rauzer Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.d1b3 -D61,"Rubinstein Variation, Orthodox Defense, QGD; D61",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.d1c2 -D62,D62,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.d1c2 c7c5 8.c4d5 -D63,D63,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 -D63,"Henneberger; Swiss Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 a7a6 -D63,"Capablanca Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 b7b6 8.c4d5 e6d5 9.f1b5 -D63,"Pillsbury Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 b7b6 8.c4d5 e6d5 9.f1d3 -D63,"Rubinstein Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 -D64,"Janowski Variation, Orthodox Defense, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 10.h2h4 -D64,"Rubinstein Attack, Orthodox Defense, QGD;� D64",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.d1c2 -D65,D65,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.d1c2 a7a6 9.c4d5 -D66,D66,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 -D66,"Fianchetto Variation, Orthodox Defense, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 b7b5 -D67,"Capablanca Freeing Maneuver, QGD; D67",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 -D67,"Classical Variation, QGD",1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 10.g5e7 d8e7 11.e1g1 d5c3 12.c1c3 -D68,D68,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 10.g5e7 d8e7 11.e1g1 d5c3 12.c1c3 e6e5 -D69,D69,1.d2d4 d7d5 2.c2c4 e7e6 3.b1c3 g8f6 4.c1g5 f8e7 5.e2e3 e8g8 6.g1f3 b8d7 7.a1c1 c7c6 8.f1d3 d5c4 9.d3c4 f6d5 10.g5e7 d8e7 11.e1g1 d5c3 12.c1c3 e6e5 13.d4e5 -D70,King's Indian Defense; West Indian Defense; D70,1.d2d4 g8f6 2.c2c4 g7g6 -D70,Danube Gambit; Adorjan Gambit,1.d2d4 g8f6 2.c2c4 g7g6 3.d4d5 b7b5 -D70,Danube; Donau Gambit,1.d2d4 g8f6 2.c2c4 g7g6 3.d4d5 b7b5 4.c4b5 a7a6 5.b5a6 c7c6 -D70,Nimzovich Attack; Anti-Grunfeld; Alekhine Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.f2f3 -D70,Goglidze Attack,1.d2d4 g8f6 2.c2c4 g7g6 3.f2f3 d7d5 -D70,Leko Gambit,1.d2d4 g8f6 2.c2c4 g7g6 3.f2f3 e7e5 -D70,Kemeri; Neo-Grunfeld�,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 -D70,"Lutikov Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.f2f3 -D70,"Murey Attack, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.f2f3 c7c5 5.c4d5 f6d5 6.c3a4 -D70,Neo-Grunfeld Defense,1.d2d4 g8f6 2.c2c4 g7g6 3.g1f3 d7d5 -D70,Iago Defense,1.d2d4 g8f6 2.c2c4 b8c6 -D71,Counterthrust Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 -D71,"Exchange Variation, Neo-Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.c4d5 f6d5 -D71,D71,1.d2d4 g8f6 2.c2c4 b8c6 3.g2g3 d7d5 -D72,D72,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.c4d5 f6d5 6.e2e4 d5b6 -D73,D73,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 -D74,"Delayed Exchange Variation, Neo-Grunfeld; D74",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.c4d5 f6d5 7.e1g1 -D75,D75,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.c4d5 f6d5 7.e1g1 c7c5 -D76,D76,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.c4d5 f6d5 7.e1g1 d5b6 -D77,"Classical Variation, Neo-Grunfeld; D77",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 -D78,"Original Defesne, Neo-Grunfeld; D78",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 c7c6 -D78,"Modern Defense, Neo-Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 d5c4 -D78,"Polgar Variation, Neo-Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 b8c6 -D79,D79,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 c7c6 7.c4d5 -D79,"Ultra-delayed Exchange Variation, Neo-Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 d7d5 4.f1g2 f8g7 5.g1f3 e8g8 6.e1g1 c7c6 7.c4d5 c6d5 -D80,Grunfeld Defense; D80,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 -D80,"Stockholm Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1g5 -D80,"Makogonov Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.b2b4 -D80,"Opocensky Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.c1d2 -D80,"Paris Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.f1d3 -D80,"Schlechter Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.f1d3 c7c6 -D80,"Flohr Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.f1d3 c7c6 7.e1g1 c8f5 -D80,"Smyslov Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.f1d3 c7c6 7.e1g1 c8g4 -D80,"Vienna Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.d1b3 -D80,"Pachman Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.d1b3 d5c4 7.f1c4 b8d7 8.f3g5 -D80,"Botvinnik Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 f8g7 5.g1f3 e8g8 6.d1b3 e7e6 -D80,"Schlechter Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.e2e3 c7c6 -D80,"Kemeri Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g2g3 -D80,Gibbon Gambit; Grunfeld Spike,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g2g4 -D80,"Zaitsev Gambit, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.h2h4 -D81,"Accelerated Russian Variation, Grunfeld; D81",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.d1b3 -D83,Grunfeld Gambit; D83,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 -D83,"Capablanca Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.a1c1 -D83,"Botvinnik Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.a1c1 c7c5 7.d4c5 c8e6 -D83,"Reshevsky Gambit, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.a1c1 c7c5 7.d4c5 d8a5 -D84,D84,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c1f4 f8g7 5.e2e3 e8g8 6.c4d5 f6d5 -D85,"Exchange Variation, Grunfeld; D85",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 -D85,"Exchange Variation, Grunfeld;",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 -D85,"Modern Main Line, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.g1f3 -D85,"Kramnik's Line, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.g1f3 c7c5 8.h2h3 -D85,"Kemeri Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.g2g3 -D85,Nadanian Attack,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.c3a4 -D86,"Classical Main Line, Grunfeld; D86",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 -D86,"Simagin Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 b7b6 9.h2h4 c8a6 -D86,"Simagin Improved Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 b8c6 -D86,"Larsen Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 d8d7 -D86,"Larsen Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 d8d7 9.e1g1 b7b6 -D87,"Spassky Variation, Grunfeld; D87",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 -D87,"Seville Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 9.e1g1 b8c6 10.c1e3 -D88,D88,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 9.e1g1 b8c6 10.c1e3 c5d4 -D89,D89,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 9.e1g1 b8c6 10.c1e3 c5d4 11.c3d4 c8g4 12.f2f3 c6a5 13.c4d3 -D89,"Sokolsky Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.c4d5 f6d5 5.e2e4 d5c3 6.b2c3 f8g7 7.f1c4 e8g8 8.g1e2 c7c5 9.e1g1 b8c6 10.c1e3 c5d4 11.c3d4 c8g4 12.f2f3 c6a5 13.c4d3 g4e6 14.d4d5 -D90,"Three Knights Variation, Grunfeld; D90",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 -D90,"Flohr Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1a4 -D91,"Petrosian System, Grunfeld; D91",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.c1g5 -D93,D93,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.c1f4 e8g8 6.e2e3 -D94,"Burille Variation, Grunfeld; D94",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.e2e3 -D94,"Makogonov Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.e2e3 e8g8 6.b2b4 -D94,"Opocensky Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.e2e3 e8g8 6.c1d2 -D95,D95,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.e2e3 e8g8 6.d1b3 -D96,"Russian Variation, Grunfeld; D96",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 -D97,D97,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 -D97,"Hungarian Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 a7a6 -D97,"Levenfish Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 b7b6 -D97,"Szabo (Boleslavsky) Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 c7c6 -D97,"Prins Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 b8a6 -D97,"Simagin (Byrne) Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 b8c6 -D98,"Smyslov Variation, Grunfeld; D98",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 c8g4 -D99,D99,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 c8g4 8.c1e3 f6d7 9.c4b3 -D99,"Yugoslav Variation, Grunfeld",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 d7d5 4.g1f3 f8g7 5.d1b3 d5c4 6.b3c4 e8g8 7.e2e4 c8g4 8.c1e3 f6d7 9.c4b3 c7c5 -E00,East Indian Defense; E00,1.d2d4 g8f6 2.c2c4 e7e6 -E00,Seirawan Attack,1.d2d4 g8f6 2.c2c4 e7e6 3.c1g5 -E00,Catalan Opening,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 -E00,"Hungarian Gambit, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 e6e5 -E00,"Devin Gambit, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g4 -E01,E01,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 -E02,E02,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 -E03,E03,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.d1a4 b8d7 6.a4c4 -E03,"Alekhine Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.d1a4 b8d7 6.a4c4 a7a6 7.c4c2 -E04,"Open Defense, Catalan; E04",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.g1f3 -E05,"Classical Line, Catalan; E05",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.g1f3 f8e7 -E05,"Modern Sharp Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 d5c4 5.g1f3 b8c6 6.d1a4 f8b4 -E06,"Closed Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 -E06,E06,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 -E06,"Tarrasch Defense, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 c7c5 5.g1f3 b8c6 -E07,E07,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 -E07,"Botvinnik Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 7.b1c3 c7c6 8.d1d3 -E08,E08,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 7.d1c2 -E08,"Zagoriansky Variation, Catalan",1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 7.d1c2 c7c6 8.f1d1 b7b6 9.a2a4 -E09,E09,1.d2d4 g8f6 2.c2c4 e7e6 3.g2g3 d7d5 4.f1g2 f8e7 5.g1f3 e8g8 6.e1g1 b8d7 7.d1c2 c7c6 8.b1d2 -E10,Anti-Nimzo-Indian; E10,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 -E10,Dzindzi-Indian Defense,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 a7a6 -E10,Blumenfeld Variation,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 -E10,Blumenfeld Countergambit,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 -E10,Dus-Chotimursky Variation,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 5.c1g5 -E10,"Spielmann Variation, Blumenfeld",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 5.c1g5 e6d5 6.c4d5 h7h6 -E10,Blumenfeld Countergambit Accepted,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 5.d5e6 f7e6 6.c4b5 d7d5 -E10,"Rubinstein Variation, Blumenfeld",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 c7c5 4.d4d5 b7b5 5.e2e4 -E10,Dory (Doery) Defense,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 f6e4 -E11,Bogoljubow Defense; Bogo-Indian Defense; E11,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 f8b4 -E11,"Nimzovich Variation, Bogo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 f8b4 4.c1d2 d8e7 -E11,"Grunfeld Variation, Bogo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 f8b4 4.b1d2 -E12,Queen's Indian Defense; E12,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 -E12,"Petrosian Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.a2a3 -E12,"Farago Defense, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.a2a3 c8a6 5.d1c2 a6b7 -E12,"Murey Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.a2a3 c8b7 5.b1c3 d7d5 6.c4d5 f6d5 7.d1c2 c7c5 8.e2e4 d5c3 9.b2c3 b8c6 10.c1b2 c5d4 11.c3d4 a8c8 12.a1d1 f8d6 -E12,"Miles Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.c1f4 -E12,"Kasparov Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 -E12,"Kasparov-Petrosian Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.a2a3 -E12,"Polovodin Gambit, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.a2a3 d7d5 6.c4d5 f6d5 7.e2e4 -E12,"Hedgehog Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.a2a3 g7g6 -E12,"Botvinnik Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.c1g5 h7h6 6.g5h4 g7g5 7.h4g3 f6h5 -E13,E13,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.b1c3 c8b7 5.c1g5 h7h6 6.g5h4 f8b4 -E14,"Spassky System, QID; E14",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.e2e3 -E14,"Averbakh Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.e2e3 c8b7 5.f1d3 c7c5 6.e1g1 f8e7 7.b2b3 e8g8 8.c1b2 c5d4 9.f3d4 -E15,"Fianchetto System, QID; E15",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 -E15,"Nimzovich Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8a6 -E15,"Quiet Line, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8a6 5.b2b3 -E15,"Nimzovich Attack, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8a6 5.d1a4 -E15,"Timman's Line, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8a6 5.d1b3 -E15,"Saemisch Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 c7c5 -E16,"Fianchetto Traditional, QID; E16",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 -E16,"Capablanca Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8b4 -E16,"Yates Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8b4 6.c1d2 a7a5 -E16,"Riumin Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8b4 6.c1d2 b4e7 -E16,"Buerger Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 c7c5 6.d4d5 e6d5 7.f3g5 -E16,"Rubinstein Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 c7c5 6.d4d5 e6d5 7.f3h4 -E16,"Fine Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 d8c8 6.e1g1 c7c5 7.d4d5 -E17,"Traditional Variation, QID; E17",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 -E17,Anti-Queen's Indian System,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.b1c3 -E17,"Opocensky Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.b1c3 f6e4 7.c1d2 -E17,"Classical Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 -E17,"Euwe Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.b2b3 -E17,"Taimanov Gambit, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.d4d5 e6d5 8.f3d4 -E17,"Polugaevsky Gambit, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.d4d5 e6d5 8.f3h4 -E17,"Kramnik Variation, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.f1e1 -E18,E18,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.b1c3 -E18,"Tiviakov Defense, QID",1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.b1c3 b8a6 -E19,E19,1.d2d4 g8f6 2.c2c4 e7e6 3.g1f3 b7b6 4.g2g3 c8b7 5.f1g2 f8e7 6.e1g1 e8g8 7.b1c3 f6e4 8.d1c2 -E20,E20,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 -E20,Nimzo-Indian Defense,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 -E20,"Kmoch Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.f2f3 -E20,"Steiner Variation, Nimzo-Indian; Romanishin Variation",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g2g3 -E20,"Romanishin Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.g2g3 e8g8 6.f1g2 -E20,"English Hybrid, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.g2g3 e8g8 6.f1g2 c5d4 7.f3d4 d7d5 8.c4d5 f6d5 -E20,"Ragozin Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 d7d5 -E21,"Three Knights Variation, Nimzo-Indian; E21",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 -E21,"Korchnoi Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.d4d5 -E21,"Shocron Gambit, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.d4d5 b7b5 -E21,"Euwe Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.g1f3 c7c5 5.d4d5 f6e4 -E22,"Spielmann Variation, Nimzo-Indian; E22",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 -E23,"Romanovsky Gambit, Nimzo-Indian; E23",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 -E23,"San Remo Variation, Nimzo-Indian; Stahlberg Variation",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 6.g1f3 f6e4 7.c1d2 e4c5 -E23,"Stahlberg Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 6.g1f3 f6e4 7.c1d2 e4c5 8.b3c2 f7f5 9.g2g3 -E23,"Carlsbad Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 6.g1f3 f6e4 7.c1d2 e4d2 -E23,"Stahlberg Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1b3 c7c5 5.d4c5 b8c6 6.g1f3 f6e4 7.c1d2 e4d2 8.f3d2 e8g8 9.e1c1 -E24,"Saemisch Variation, Nimzo-Indian; E24",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 -E24,"Accelerated Saemisch Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 -E24,"Botvinnik Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.f2f3 d7d5 7.e2e3 e8g8 8.c4d5 f6d5 -E25,E25,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.f2f3 d7d5 7.c4d5 -E25,"Keres Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.f2f3 d7d5 7.c4d5 f6d5 8.d4c5 -E25,"Romanovsky Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.f2f3 d7d5 7.c4d5 f6d5 8.d4c5 f7f5 -E26,"Saemisch Variation, Nimzo-Indian; E26",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.e2e3 -E26,"O'Kelly Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.e2e3 b7b6 -E26,"Capablanca Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 c7c5 6.e2e3 b8c6 7.f1d3 e8g8 8.g1e2 b7b6 9.e3e4 f6e8 -E27,E27,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 e8g8 -E28,E28,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 e8g8 6.e2e3 -E29,E29,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 e8g8 6.e2e3 c7c5 7.f1d3 b8c6 -E29,"Capablanca Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.a2a3 b4c3 5.b2c3 e8g8 6.e2e3 c7c5 7.f1d3 b8c6 8.g1e2 b7b6 9.e3e4 f6e8 -E30,"Leningrad Variation, Nimzo-Indian; E30",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.c1g5 -E30,"Averbakh Gambit, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.c1g5 h7h6 5.g5h4 c7c5 6.d4d5 b7b5 -E31,"Benoni Defense, Nimzo-Indian; E31",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.c1g5 h7h6 5.g5h4 c7c5 6.d4d5 d7d6 -E32,"Classical Variation, Nimzo-Indian; E32",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 -E33,"Milner-Barry, Zurich Variation, Nimzo-Indian; E33",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 b8c6 -E33,"Milner-Barry Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 b8c6 5.g1f3 d7d6 -E33,"Old Zurich Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 b8c6 5.g1f3 d7d6 6.a2a3 -E33,"Vitolinsh-Adorjan Gambit, Nimzo Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 e8g8 5.a2a3 b4c3 6.c2c3 b7b5 -E33,"Keres Defense, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 e8g8 5.a2a3 b4c3 6.c2c3 b7b6 -E34,"Noa Variation, Nimzo-Indian; E34",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 -E35,E35,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.c4d5 e6d5 -E36,E36,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.a2a3 -E36,"Botvinnik Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.a2a3 b4c3 6.c2c3 b8c6 -E37,E37,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.a2a3 b4c3 6.c2c3 f6e4 -E37,"San Remo Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 d7d5 5.a2a3 b4c3 6.c2c3 f6e4 7.c3c2 b8c6 8.e2e3 e6e5 -E38,"Berlin Variation, Nimzo-Indian; E38",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 c7c5 -E38,"Steiner Variation, Nimzo-Indian��",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 c7c5 5.d4c5 b4c3 -E39,"Pirc Variation, Nimzo-Indian; E39",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.d1c2 c7c5 5.d4c5 e8g8 -E40,"Rubinstein Variation, Nimzo-Indian; E40",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 -E40,"Keres Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 d7d5 5.a2a3 b4c3 6.b2c3 c7c5 7.c4d5 e6d5 8.f1d3 e8g8 9.g1e2 b7b6 -E40,"Taimanov Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b8c6 -E40,"Ragozin Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b8c6 5.g1f3 e8g8 6.f1d3 d7d5 7.e1g1 d5c4 -E41,"Huebner Variation, Nimzo-Indian; E41",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 -E41,"Huebner Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 5.f1d3 b8c6 6.g1f3 b4c3 -E41,"Panov Attack, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 5.g1f3 c5d4 6.e3d4 d7d5 -E42,"Rubinstein Variation, Nimzo-Indian; E42",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 5.g1e2 -E42,"Sherbakov Attack, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 c7c5 5.g1e2 c5d4 6.e3d4 e8g8 7.c4c5 -E43,"St. Petersburg Variation, Nimzo-Indian; E43",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b7b6 -E44,"Fischer Variation, Nimzo-Indian; E44",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b7b6 5.g1e2 -E45,"Bronstein Variation, Nimzo-Indian; E45; Byrne Variation",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 b7b6 5.g1e2 c8a6 -E46,"Normal Variation, Nimzo-Indian; E46",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 -E46,"Reshevsky Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1e2 -E46,"Simagin Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1e2 d7d5 6.a2a3 b4d6 -E47,"Bishop Attack, Nimzo-Indian; E47",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 -E48,"Classical Defense, Nimzo-Indian; E48",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 -E48,"Olafsson Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.g1f3 c7c5 7.e1g1 d5c4 8.d3c4 b7b6 9.d1e2 c8b7 10.f1d1 d8c8 -E48,"Bronstein Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.g1f3 c7c5 7.e1g1 d5c4 8.d3c4 c8d7 -E48,"Bronstein Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.g1f3 c7c5 7.e1g1 d5c4 8.d3c4 b8d7 9.c3e2 -E48,"Smyslov Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.g1f3 c7c5 7.e1g1 d5c4 8.d3c4 d8e7 -E49,"Botvinnik System, Nimzo-Indian; E49",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.f1d3 d7d5 6.a2a3 b4c3 7.b2c3 -E50,E50,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 -E50,"Huebner Deferred, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 c7c5 -E51,"Ragozin Variation, Nimzo-Indian; E51",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 -E51,"Saemisch Deferred, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.a2a3 -E52,"Schlechter Defense, Nimzo-Indian; E52",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 b7b6 -E53,Bernstein Defense; Gligoric System; E53,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 -E53,"Keres Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b7b6 -E54,E54,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 d5c4 8.d3c4 -E55,"Bronstein Variation, Nimzo-Indian; E55",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 d5c4 8.d3c4 b8d7 -E55,"Smyslov Variation, Nimzo-Indian",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 d5c4 8.d3c4 d8e7 -E56,"Bernstein Variation, Nimzo-Indian; E56",1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b8c6 -E57,E57,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b8c6 8.a2a3 d5c4 9.d3c4 c5d4 -E58,E58,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b8c6 8.a2a3 b4c3 9.b2c3 -E59,E59,1.d2d4 g8f6 2.c2c4 e7e6 3.b1c3 f8b4 4.e2e3 e8g8 5.g1f3 d7d5 6.f1d3 c7c5 7.e1g1 b8c6 8.a2a3 b4c3 9.b2c3 d5c4 10.d3c4 -E60,King's Indian Defense; West Indian Defense; E60,1.d2d4 g8f6 2.c2c4 g7g6 -E60,"Fianchetto Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 -E60,Counterthrust Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d5 -E60,Kemeri Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d5 5.c4d5 f6d5 6.g1f3 e8g8 7.e1g1 c7c5 -E60,Yugoslav Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 c7c5 -E60,Bronstein Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 c7c6 7.e1g1 d8a5 -E60,Panno Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 b8c6 7.e1g1 a7a6 8.h2h3 a8b8 -E60,Spassky Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 b8c6 7.e1g1 c8f5 -E60,Simagin Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 b8c6 7.e1g1 c8g4 -E60,Szabo Variation,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.b1c3 b8c6 7.e1g1 e7e5 -E60,Panno System,1.d2d4 g8f6 2.c2c4 g7g6 3.g2g3 f8g7 4.f1g2 d7d6 5.g1f3 e8g8 6.e1g1 b8c6 7.d4d5 c6a5 -E60,"King's Knight Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.g1f3 -E60,"Santassiere Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.g1f3 f8g7 4.b2b4 -E61,E61,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 -E61,"Smyslov Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.c1g5 -E61,"Smyslov Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.c1g5 -E62,"Delayed Fianchetto, KID; E62",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 -E62,"Larsen Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c6 7.e1g1 c8f5 -E62,"Kavalek Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c6 7.e1g1 d8a5 -E62,"Benjamin Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c6 7.e1g1 d8b6 -E62,"Carlsbad Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 -E62,"Lesser Simagin (Spassky) Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 7.e1g1 c8f5 -E62,"Simagin Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 7.e1g1 c8g4 -E62,"Uhlmann-Szabo System, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 7.e1g1 e7e5 -E63,"Panno Variation, KID; E63",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8c6 7.e1g1 a7a6 -E64,"Yugoslav Variation, KID; E64",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c5 -E65,E65,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c5 7.e1g1 -E66,E66,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 c7c5 7.e1g1 b8c6 8.d4d5 -E68,E68,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8d7 7.e1g1 e7e5 8.e2e4 -E69,E69,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.g1f3 d7d6 5.g2g3 e8g8 6.f1g2 b8d7 7.e1g1 e7e5 8.e2e4 c7c6 9.h2h3 -E70,"Normal Variation, KID; E70",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 -E70,"Accelerated Averbakh Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.c1g5 -E71,"Makogonov Variation, KID; E71",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.h2h3 -E72,"Deferred Fianchetto, KID; E72",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g2g3 -E72,"Pomar System, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g2g3 e8g8 6.f1g2 e7e5 7.g1e2 -E73,E73,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 -E73,"Semi-Averbakh System, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1e3 -E73,"Averbakh Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 -E73,"Spanish Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 a7a6 -E73,"Flexible Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 h7h6 -E73,"Burgess Line, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 b8a6 7.d1d2 c7c6 -E73,"Geller Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 b8d7 -E74,"Benoni Defense, KID; E74",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f1e2 e8g8 6.c1g5 c7c5 -E76,"Four Pawns Attack, KID; E76",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 -E76,"Six Pawns Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 c7c5 6.d4d5 e8g8 7.f1e2 e7e6 8.d5e6 f7e6 9.g2g4 b8c6 10.h2h4 -E76,"Modern Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 b8a6 -E76,"Dynamic Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.g1f3 c7c5 7.d4d5 -E77,"Six Pawns Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 -E77,E77,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.f1e2 -E77,"Florentine Gambit, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.f1e2 c7c5 7.d4d5 e7e6 8.g1f3 e6d5 9.e4e5 -E78,"Fluid Attack, KID; E78",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.f1e2 c7c5 7.g1f3 -E79,"Exchange Variation, Four Pawns Attack, KID; E79",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f4 e8g8 6.f1e2 c7c5 7.g1f3 c5d4 8.f3d4 b8c6 9.c1e3 -E80,"Saemisch Variation, KID; E80",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 -E80,"Bronstein Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e7e5 6.d4d5 f6h5 7.c1e3 b8a6 8.d1d2 d8h4 9.g2g3 h5g3 10.d2f2 g3f1 11.f2h4 f1e3 12.e1f2 e3c4 -E81,"Normal Defesne, Sameisch Variation, KID; E81",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 -E81,"Byrne Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 c7c6 7.f1d3 a7a6 -E81,"Steiner Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1g5 -E81,"Bobotsov-Korchnoi-Petrosian Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.g1e2 -E82,"Double Fianchetto, KID; E82",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b7b6 -E83,"Yates Defense, KID; E83",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b8c6 -E83,"Panno Formation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b8c6 7.g1e2 a7a6 -E83,"Ruban Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b8c6 7.g1e2 a8b8 -E84,E84,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 b8c6 7.g1e2 a7a6 8.d1d2 a8b8 -E85,"Orthodox Variation, KID; E85",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 -E86,E86,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.g1e2 c7c6 -E87,"Closed Variation, KID; E87",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.d4d5 -E87,"Bronstein Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.d4d5 f6h5 8.d1d2 d8h4 9.g2g3 h5g3 10.d2f2 g3f1 -E88,E88,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.d4d5 c7c6 -E89,E89,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.f2f3 e8g8 6.c1e3 e7e5 7.d4d5 c7c6 8.g1e2 -E90,E90,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 -E90,"Larsen Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.c1e3 -E90,"Zinnowitz Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.c1g5 -E91,"Orthodox Variation, KID; E91",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 -E92,E92,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 -E92,"Gligoric-Taimanov Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.c1e3 -E92,"Petrosian Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.d4d5 -E92,"Stein Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.d4d5 a7a5 -E93,E93,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.d4d5 b8d7 -E93,"Keres Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.d4d5 b8d7 8.c1g5 h7h6 9.g5h4 g6g5 10.h4g3 f6h5 11.h2h4 -E94,E94,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 -E94,"Ukranian Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 a7a5 -E94,"Donner Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 c7c6 -E94,"Glek Defense, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8a6 -E95,E95,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8d7 8.f1e1 -E96,E96,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8d7 8.f1e1 c7c6 9.e2f1 a7a5 -E97,"Aronin-Taimanov Variation, KID; E97",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 -E97,"Normal Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 -E97,"Bayonet Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.b2b4 -E97,"Yepishin's Line, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.b2b4 f6h5 10.d1c2 -E97,"Sokolov's Line, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.b2b4 f6h5 10.f1e1 -E97,"Korchnoi Attack, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.c1d2 -E98,E98,1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.f3e1 -E98,"Kozul Gambit, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.f3e1 f6d7 10.c1e3 f7f5 -E99,"Benko Attack, KID; E99",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.f3e1 f6d7 10.f2f3 -E99,"Benko Variation, KID",1.d2d4 g8f6 2.c2c4 g7g6 3.b1c3 f8g7 4.e2e4 d7d6 5.g1f3 e8g8 6.f1e2 e7e5 7.e1g1 b8c6 8.d4d5 c6e7 9.f3e1 f6d7 10.f2f3 f7f5 11.g2g4`) +var ecoData = []byte(`eco name pgn uci epd +A00 Amar Gambit 1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4 rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQK2R w KQkq - +A00 Amar Opening 1. Nh3 g1h3 rnbqkbnr/pppppppp/8/8/8/7N/PPPPPPPP/RNBQKB1R b KQkq - +A00 Amar Opening: Gent Gambit 1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O fxg3 6. hxg3 g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4 e1g1 f4g3 h2g3 rn1qkbnr/ppp2ppp/8/3p4/8/6PB/PPPPP3/RNBQ1RK1 b kq - +A00 Amar Opening: Paris Gambit 1. Nh3 d5 2. g3 e5 3. f4 g1h3 d7d5 g2g3 e7e5 f2f4 rnbqkbnr/ppp2ppp/8/3pp3/5P2/6PN/PPPPP2P/RNBQKB1R b KQkq - +A00 Amsterdam Attack 1. e3 e5 2. c4 d6 3. Nc3 Nc6 4. b3 Nf6 e2e3 e7e5 c2c4 d7d6 b1c3 b8c6 b2b3 g8f6 r1bqkb1r/ppp2ppp/2np1n2/4p3/2P5/1PN1P3/P2P1PPP/R1BQKBNR w KQkq - +A00 Anderssen's Opening 1. a3 a2a3 rnbqkbnr/pppppppp/8/8/8/P7/1PPPPPPP/RNBQKBNR b KQkq - +A00 Anderssen's Opening: Polish Gambit 1. a3 a5 2. b4 a2a3 a7a5 b2b4 rnbqkbnr/1ppppppp/8/p7/1P6/P7/2PPPPPP/RNBQKBNR b KQkq - +A00 Barnes Opening: Fool's Mate 1. f3 e5 2. g4 Qh4# f2f3 e7e5 g2g4 d8h4 rnb1kbnr/pppp1ppp/8/4p3/6Pq/5P2/PPPPP2P/RNBQKBNR w KQkq - +A00 Barnes Opening: Gedult Gambit 1. f3 d5 2. e4 g6 3. d4 dxe4 4. c3 f2f3 d7d5 e2e4 g7g6 d2d4 d5e4 c2c3 rnbqkbnr/ppp1pp1p/6p1/8/3Pp3/2P2P2/PP4PP/RNBQKBNR b KQkq - +A00 Barnes Opening: Gedult Gambit 1. f3 f5 2. e4 fxe4 3. Nc3 f2f3 f7f5 e2e4 f5e4 b1c3 rnbqkbnr/ppppp1pp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq - +A00 Barnes Opening: Hammerschlag 1. f3 e5 2. Kf2 f2f3 e7e5 e1f2 rnbqkbnr/pppp1ppp/8/4p3/8/5P2/PPPPPKPP/RNBQ1BNR b kq - +A00 Clemenz Opening 1. h3 h2h3 rnbqkbnr/pppppppp/8/8/8/7P/PPPPPPP1/RNBQKBNR b KQkq - +A00 Clemenz Opening: Spike Lee Gambit 1. h3 h5 2. g4 h2h3 h7h5 g2g4 rnbqkbnr/ppppppp1/8/7p/6P1/7P/PPPPPP2/RNBQKBNR b KQkq - +A00 Crab Opening 1. a4 e5 2. h4 a2a4 e7e5 h2h4 rnbqkbnr/pppp1ppp/8/4p3/P6P/8/1PPPPPP1/RNBQKBNR b KQkq - +A00 Creepy Crawly Formation: Classical Defense 1. h3 d5 2. a3 e5 h2h3 d7d5 a2a3 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/8/P6P/1PPPPPP1/RNBQKBNR w KQkq - +A00 Englund Gambit Declined: Reversed French 1. e3 e5 2. d4 e2e3 e7e5 d2d4 rnbqkbnr/pppp1ppp/8/4p3/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq - +A00 Formation: Cabbage Attack 1. c3 e5 2. a3 d5 3. b3 Nf6 4. Bb2 Nc6 5. a4 Bd6 6. g3 O-O 7. e3 c2c3 e7e5 a2a3 d7d5 b2b3 g8f6 c1b2 b8c6 a3a4 f8d6 g2g3 e8g8 e2e3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/P7/1PP1P1P1/1B1P1P1P/RN1QKBNR b KQ - +A00 Formation: Hippopotamus Attack 1. a3 e5 2. b3 d5 3. c3 Nf6 4. d3 Nc6 5. e3 Bd6 6. f3 O-O 7. g3 a2a3 e7e5 b2b3 d7d5 c2c3 g8f6 d2d3 b8c6 e2e3 f8d6 f2f3 e8g8 g2g3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/PPPPPPP1/7P/RNBQKBNR b KQ - +A00 Formation: Shy Attack 1. a3 e5 2. g3 d5 3. Bg2 Nf6 4. d3 Nc6 5. Nd2 Bd6 6. e3 O-O 7. h3 a2a3 e7e5 g2g3 d7d5 f1g2 g8f6 d2d3 b8c6 b1d2 f8d6 e2e3 e8g8 h2h3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/P2PP1PP/1PPN1PB1/R1BQK1NR b KQ - +A00 Gedult's Opening 1. f3 f2f3 rnbqkbnr/pppppppp/8/8/8/5P2/PPPPP1PP/RNBQKBNR b KQkq - +A00 Global Opening 1. h3 e5 2. a3 h2h3 e7e5 a2a3 rnbqkbnr/pppp1ppp/8/4p3/8/P6P/1PPPPPP1/RNBQKBNR b KQkq - +A00 Grob Opening 1. g4 g2g4 rnbqkbnr/pppppppp/8/8/6P1/8/PPPPPP1P/RNBQKBNR b KQkq - +A00 Grob Opening: Alessi Gambit 1. g4 f5 g2g4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/6P1/8/PPPPPP1P/RNBQKBNR w KQkq - +A00 Grob Opening: Double Grob 1. g4 g5 g2g4 g7g5 rnbqkbnr/pppppp1p/8/6p1/6P1/8/PPPPPP1P/RNBQKBNR w KQkq - +A00 Grob Opening: Double Grob, Coca-Cola Gambit 1. g4 g5 2. f4 g2g4 g7g5 f2f4 rnbqkbnr/pppppp1p/8/6p1/5PP1/8/PPPPP2P/RNBQKBNR b KQkq - +A00 Grob Opening: Grob Gambit 1. g4 d5 2. Bg2 g2g4 d7d5 f1g2 rnbqkbnr/ppp1pppp/8/3p4/6P1/8/PPPPPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Grob Gambit Declined 1. g4 d5 2. Bg2 c6 g2g4 d7d5 f1g2 c7c6 rnbqkbnr/pp2pppp/2p5/3p4/6P1/8/PPPPPPBP/RNBQK1NR w KQkq - +A00 Grob Opening: Grob Gambit, Basman Gambit 1. g4 d5 2. Bg2 h5 3. gxh5 g2g4 d7d5 f1g2 h7h5 g4h5 rnbqkbnr/ppp1ppp1/8/3p3P/8/8/PPPPPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Grob Gambit, Fritz Gambit 1. g4 d5 2. Bg2 Bxg4 3. c4 g2g4 d7d5 f1g2 c8g4 c2c4 rn1qkbnr/ppp1pppp/8/3p4/2P3b1/8/PP1PPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Grob Gambit, Fritz Gambit, Romford Countergambit 1. g4 d5 2. Bg2 Bxg4 3. c4 d4 4. Bxb7 Nd7 5. Bxa8 Qxa8 g2g4 d7d5 f1g2 c8g4 c2c4 d5d4 g2b7 b8d7 b7a8 d8a8 q3kbnr/p1pnpppp/8/8/2Pp2b1/8/PP1PPP1P/RNBQK1NR w KQk - +A00 Grob Opening: Grob Gambit, Keres Gambit 1. g4 d5 2. Bg2 e5 3. d4 exd4 4. c3 g2g4 d7d5 f1g2 e7e5 d2d4 e5d4 c2c3 rnbqkbnr/ppp2ppp/8/3p4/3p2P1/2P5/PP2PPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Grob Gambit, Richter-Grob Gambit 1. g4 d5 2. Bg2 c6 3. c4 dxc4 4. b3 g2g4 d7d5 f1g2 c7c6 c2c4 d5c4 b2b3 rnbqkbnr/pp2pppp/2p5/8/2p3P1/1P6/P2PPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Keene Defense 1. g4 d5 2. h3 e5 3. Bg2 c6 g2g4 d7d5 h2h3 e7e5 f1g2 c7c6 rnbqkbnr/pp3ppp/2p5/3pp3/6P1/7P/PPPPPPB1/RNBQK1NR w KQkq - +A00 Grob Opening: Keene Defense, Main Line 1. g4 d5 2. h3 e5 3. Bg2 c6 4. d4 e4 5. c4 Bd6 6. Nc3 Ne7 g2g4 d7d5 h2h3 e7e5 f1g2 c7c6 d2d4 e5e4 c2c4 f8d6 b1c3 g8e7 rnbqk2r/pp2nppp/2pb4/3p4/2PPp1P1/2N4P/PP2PPB1/R1BQK1NR w KQkq - +A00 Grob Opening: London Defense 1. g4 e5 2. h3 Nc6 g2g4 e7e5 h2h3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/6P1/7P/PPPPPP2/RNBQKBNR w KQkq - +A00 Grob Opening: Romford Countergambit 1. g4 d5 2. Bg2 Bxg4 3. c4 d4 g2g4 d7d5 f1g2 c8g4 c2c4 d5d4 rn1qkbnr/ppp1pppp/8/8/2Pp2b1/8/PP1PPPBP/RNBQK1NR w KQkq - +A00 Grob Opening: Spike Attack 1. g4 d5 2. Bg2 c6 3. g5 g2g4 d7d5 f1g2 c7c6 g4g5 rnbqkbnr/pp2pppp/2p5/3p2P1/8/8/PPPPPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Spike, Hurst Attack 1. g4 e5 2. Bg2 d5 3. c4 g2g4 e7e5 f1g2 d7d5 c2c4 rnbqkbnr/ppp2ppp/8/3pp3/2P3P1/8/PP1PPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Zilbermints Gambit 1. g4 d5 2. e4 dxe4 3. Nc3 g2g4 d7d5 e2e4 d5e4 b1c3 rnbqkbnr/ppp1pppp/8/8/4p1P1/2N5/PPPP1P1P/R1BQKBNR b KQkq - +A00 Grob Opening: Zilbermints Gambit, Schiller Defense 1. g4 d5 2. e4 dxe4 3. Nc3 h5 g2g4 d7d5 e2e4 d5e4 b1c3 h7h5 rnbqkbnr/ppp1ppp1/8/7p/4p1P1/2N5/PPPP1P1P/R1BQKBNR w KQkq - +A00 Grob Opening: Zilbermints Gambit, Zilbermints-Hartlaub Gambit 1. g4 d5 2. e4 dxe4 3. Nc3 e5 4. d3 g2g4 d7d5 e2e4 d5e4 b1c3 e7e5 d2d3 rnbqkbnr/ppp2ppp/8/4p3/4p1P1/2NP4/PPP2P1P/R1BQKBNR b KQkq - +A00 Hungarian Opening 1. g3 g2g3 rnbqkbnr/pppppppp/8/8/8/6P1/PPPPPP1P/RNBQKBNR b KQkq - +A00 Hungarian Opening: Asten Gambit 1. g3 Nc6 2. Nc3 d5 3. d4 e5 4. dxe5 d4 5. Ne4 f5 g2g3 b8c6 b1c3 d7d5 d2d4 e7e5 d4e5 d5d4 c3e4 f7f5 r1bqkbnr/ppp3pp/2n5/4Pp2/3pN3/6P1/PPP1PP1P/R1BQKBNR w KQkq f6 +A00 Hungarian Opening: Burk Gambit 1. g3 e5 2. a3 d5 3. Nf3 e4 4. Nh4 Be7 5. d3 g2g3 e7e5 a2a3 d7d5 g1f3 e5e4 f3h4 f8e7 d2d3 rnbqk1nr/ppp1bppp/8/3p4/4p2N/P2P2P1/1PP1PP1P/RNBQKB1R b KQkq - +A00 Hungarian Opening: Bücker Gambit 1. g3 d5 2. Bg2 e5 3. b4 g2g3 d7d5 f1g2 e7e5 b2b4 rnbqkbnr/ppp2ppp/8/3pp3/1P6/6P1/P1PPPPBP/RNBQK1NR b KQkq - +A00 Hungarian Opening: Catalan Formation 1. g3 d5 2. Bg2 e6 g2g3 d7d5 f1g2 e7e6 rnbqkbnr/ppp2ppp/4p3/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - +A00 Hungarian Opening: Dutch Defense 1. g3 f5 g2g3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Indian Defense 1. g3 Nf6 g2g3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Myers Defense 1. g3 g5 g2g3 g7g5 rnbqkbnr/pppppp1p/8/6p1/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Pachman Gambit 1. g3 f5 2. e4 fxe4 3. Qh5+ g6 g2g3 f7f5 e2e4 f5e4 d1h5 g7g6 rnbqkbnr/ppppp2p/6p1/7Q/4p3/6P1/PPPP1P1P/RNB1KBNR w KQkq - +A00 Hungarian Opening: Paris Gambit 1. g3 e5 2. Nh3 d5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O g2g3 e7e5 g1h3 d7d5 f2f4 c8h3 f1h3 e5f4 e1g1 rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQ1RK1 b kq - +A00 Hungarian Opening: Reversed Alekhine 1. g3 e5 2. Nf3 g2g3 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq - +A00 Hungarian Opening: Reversed Brooklyn Defense, Brooklyn Benko Gambit 1. g3 e5 2. Nf3 e4 3. Ng1 Nf6 4. b4 g2g3 e7e5 g1f3 e5e4 f3g1 g8f6 b2b4 rnbqkb1r/pppp1ppp/5n2/8/1P2p3/6P1/P1PPPP1P/RNBQKBNR b KQkq - +A00 Hungarian Opening: Reversed Modern Defense 1. g3 d5 2. Bg2 c5 g2g3 d7d5 f1g2 c7c5 rnbqkbnr/pp2pppp/8/2pp4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - +A00 Hungarian Opening: Reversed Norwegian Defense 1. g3 e5 2. Nf3 e4 3. Nh4 g2g3 e7e5 g1f3 e5e4 f3h4 rnbqkbnr/pppp1ppp/8/8/4p2N/6P1/PPPPPP1P/RNBQKB1R b KQkq - +A00 Hungarian Opening: Sicilian Invitation 1. g3 c5 g2g3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Slav Formation 1. g3 d5 2. Bg2 c6 g2g3 d7d5 f1g2 c7c6 rnbqkbnr/pp2pppp/2p5/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - +A00 Hungarian Opening: Symmetrical Variation 1. g3 g6 g2g3 g7g6 rnbqkbnr/pppppp1p/6p1/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Van Kuijk Gambit 1. g3 h5 2. Nf3 h4 g2g3 h7h5 g1f3 h5h4 rnbqkbnr/ppppppp1/8/8/7p/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A00 Hungarian Opening: Winterberg Gambit 1. g3 d5 2. Bg2 e5 3. c4 dxc4 4. b3 g2g3 d7d5 f1g2 e7e5 c2c4 d5c4 b2b3 rnbqkbnr/ppp2ppp/8/4p3/2p5/1P4P1/P2PPPBP/RNBQK1NR b KQkq - +A00 Indian Defense: Colle System, King's Indian Variation 1. e3 d6 2. d4 g6 3. Nf3 Bg7 4. Bd3 Nf6 e2e3 d7d6 d2d4 g7g6 g1f3 f8g7 f1d3 g8f6 rnbqk2r/ppp1ppbp/3p1np1/8/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq - +A00 Kádas Opening 1. h4 h2h4 rnbqkbnr/pppppppp/8/8/7P/8/PPPPPPP1/RNBQKBNR b KQkq - +A00 Kádas Opening: Beginner's Trap 1. h4 d5 2. Rh3 h2h4 d7d5 h1h3 rnbqkbnr/ppp1pppp/8/3p4/7P/7R/PPPPPPP1/RNBQKBN1 b Qkq - +A00 Kádas Opening: Kádas Gambit 1. h4 c5 2. b4 h2h4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P5P/8/P1PPPPP1/RNBQKBNR b KQkq - +A00 Kádas Opening: Kádas Gambit 1. h4 d5 2. d4 c5 3. Nf3 cxd4 4. c3 h2h4 d7d5 d2d4 c7c5 g1f3 c5d4 c2c3 rnbqkbnr/pp2pppp/8/3p4/3p3P/2P2N2/PP2PPP1/RNBQKB1R b KQkq - +A00 Kádas Opening: Kádas Gambit 1. h4 e5 2. d4 exd4 3. c3 h2h4 e7e5 d2d4 e5d4 c2c3 rnbqkbnr/pppp1ppp/8/8/3p3P/2P5/PP2PPP1/RNBQKBNR b KQkq - +A00 Kádas Opening: Myers Variation 1. h4 d5 2. d4 c5 3. e4 h2h4 d7d5 d2d4 c7c5 e2e4 rnbqkbnr/pp2pppp/8/2pp4/3PP2P/8/PPP2PP1/RNBQKBNR b KQkq - +A00 Kádas Opening: Schneider Gambit 1. h4 g5 h2h4 g7g5 rnbqkbnr/pppppp1p/8/6p1/7P/8/PPPPPPP1/RNBQKBNR w KQkq - +A00 Kádas Opening: Steinbok Gambit 1. h4 f5 2. e4 fxe4 3. d3 h2h4 f7f5 e2e4 f5e4 d2d3 rnbqkbnr/ppppp1pp/8/8/4p2P/3P4/PPP2PP1/RNBQKBNR b KQkq - +A00 Lasker Simul Special 1. g3 h5 g2g3 h7h5 rnbqkbnr/ppppppp1/8/7p/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Mieses Opening 1. d3 d2d3 rnbqkbnr/pppppppp/8/8/8/3P4/PPP1PPPP/RNBQKBNR b KQkq - +A00 Mieses Opening: Myers Spike Attack 1. d3 g6 2. g4 d2d3 g7g6 g2g4 rnbqkbnr/pppppp1p/6p1/8/6P1/3P4/PPP1PP1P/RNBQKBNR b KQkq - +A00 Mieses Opening: Reversed Rat 1. d3 e5 d2d3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPP1PPPP/RNBQKBNR w KQkq - +A00 Polish Opening 1. b4 b2b4 rnbqkbnr/pppppppp/8/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq - +A00 Polish Opening: Baltic Defense 1. b4 d5 2. Bb2 Bf5 b2b4 d7d5 c1b2 c8f5 rn1qkbnr/ppp1pppp/8/3p1b2/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Birmingham Gambit 1. b4 c5 b2b4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: Bugayev Advance Variation 1. b4 e5 2. Bb2 f6 3. b5 b2b4 e7e5 c1b2 f7f6 b4b5 rnbqkbnr/pppp2pp/5p2/1P2p3/8/8/PBPPPPPP/RN1QKBNR b KQkq - +A00 Polish Opening: Bugayev Attack 1. b4 e5 2. a3 b2b4 e7e5 a2a3 rnbqkbnr/pppp1ppp/8/4p3/1P6/P7/2PPPPPP/RNBQKBNR b KQkq - +A00 Polish Opening: Czech Defense 1. b4 e5 2. Bb2 d6 b2b4 e7e5 c1b2 d7d6 rnbqkbnr/ppp2ppp/3p4/4p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Dutch Defense 1. b4 f5 b2b4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: German Defense 1. b4 d5 2. Bb2 Qd6 b2b4 d7d5 c1b2 d8d6 rnb1kbnr/ppp1pppp/3q4/3p4/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Grigorian Variation 1. b4 Nc6 b2b4 b8c6 r1bqkbnr/pppppppp/2n5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: Karniewski Variation 1. b4 Nh6 b2b4 g8h6 rnbqkb1r/pppppppp/7n/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: King's Indian Variation 1. b4 Nf6 2. Bb2 g6 b2b4 g8f6 c1b2 g7g6 rnbqkb1r/pppppp1p/5np1/8/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: King's Indian Variation, Schiffler Attack 1. b4 Nf6 2. Bb2 g6 3. e4 b2b4 g8f6 c1b2 g7g6 e2e4 rnbqkb1r/pppppp1p/5np1/8/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Myers Variation 1. b4 d5 2. Bb2 c6 3. a4 b2b4 d7d5 c1b2 c7c6 a2a4 rnbqkbnr/pp2pppp/2p5/3p4/PP6/8/1BPPPPPP/RN1QKBNR b KQkq - +A00 Polish Opening: Orangutan-Diemer Gambit 1. b4 d5 2. Bb2 Qd6 3. a3 e5 4. e4 dxe4 5. f3 b2b4 d7d5 c1b2 d8d6 a2a3 e7e5 e2e4 d5e4 f2f3 rnb1kbnr/ppp2ppp/3q4/4p3/1P2p3/P4P2/1BPP2PP/RN1QKBNR b KQkq - +A00 Polish Opening: Orangutan-Hartlaub Gambit 1. b4 Nf6 2. Bb2 e6 3. a3 c6 4. d3 a5 5. bxa5 d5 6. e4 b2b4 g8f6 c1b2 e7e6 a2a3 c7c6 d2d3 a7a5 b4a5 d7d5 e2e4 rnbqkb1r/1p3ppp/2p1pn2/P2p4/4P3/P2P4/1BP2PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Outflank Variation 1. b4 c6 b2b4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: Queen's Indian Variation 1. b4 e6 2. Bb2 Nf6 3. b5 b6 b2b4 e7e6 c1b2 g8f6 b4b5 b7b6 rnbqkb1r/p1pp1ppp/1p2pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Queenside Defense 1. b4 e6 2. Bb2 Nf6 3. b5 a6 b2b4 e7e6 c1b2 g8f6 b4b5 a7a6 rnbqkb1r/1ppp1ppp/p3pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Rooks Swap Line 1. b4 e6 2. Bb2 Nf6 3. b5 a6 4. a4 axb5 5. axb5 Rxa1 6. Bxa1 b2b4 e7e6 c1b2 g8f6 b4b5 a7a6 a2a4 a6b5 a4b5 a8a1 b2a1 1nbqkb1r/1ppp1ppp/4pn2/1P6/8/8/2PPPPPP/BN1QKBNR b Kk - +A00 Polish Opening: Schiffler-Sokolsky Variation 1. b4 e6 2. Bb2 Nf6 3. b5 d5 4. e3 b2b4 e7e6 c1b2 g8f6 b4b5 d7d5 e2e3 rnbqkb1r/ppp2ppp/4pn2/1P1p4/8/4P3/PBPP1PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Schuehler Gambit 1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e4 b2b4 c7c6 c1b2 a7a5 b4b5 c6b5 e2e4 rnbqkbnr/1p1ppppp/8/pp6/4P3/8/PBPP1PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Symmetrical Variation 1. b4 b5 b2b4 b7b5 rnbqkbnr/p1pppppp/8/1p6/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: Tartakower Gambit 1. b4 e5 2. Bb2 f6 3. e4 b2b4 e7e5 c1b2 f7f6 e2e4 rnbqkbnr/pppp2pp/5p2/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Tartakower Gambit, Brinckmann Variation 1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nc6 5. f4 Qe7 6. f5 g6 b2b4 e7e5 c1b2 f7f6 e2e4 f8b4 f1c4 b8c6 f2f4 d8e7 f4f5 g7g6 r1b1k1nr/ppppq2p/2n2pp1/4pP2/1bB1P3/8/PBPP2PP/RN1QK1NR w KQkq - +A00 Polish Opening: Wolferts Gambit 1. b4 e5 2. Bb2 c5 b2b4 e7e5 c1b2 c7c5 rnbqkbnr/pp1p1ppp/8/2p1p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Saragossa Opening 1. c3 c2c3 rnbqkbnr/pppppppp/8/8/8/2P5/PP1PPPPP/RNBQKBNR b KQkq - +A00 Sodium Attack 1. Na3 b1a3 rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b KQkq - +A00 Sodium Attack: Celadon Variation 1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1 b1a3 e7e5 d2d3 f8a3 b2a3 d7d5 e2e3 c7c5 a1b1 rnbqk1nr/pp3ppp/8/2ppp3/8/P2PP3/P1P2PPP/1RBQKBNR b Kkq - +A00 Sodium Attack: Chenoboskion Variation 1. Na3 g6 2. g4 b1a3 g7g6 g2g4 rnbqkbnr/pppppp1p/6p1/8/6P1/N7/PPPPPP1P/R1BQKBNR b KQkq - +A00 Sodium Attack: Durkin Gambit 1. Na3 e5 2. Nc4 Nc6 3. e4 f5 b1a3 e7e5 a3c4 b8c6 e2e4 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/2N1P3/8/PPPP1PPP/R1BQKBNR w KQkq - +A00 Valencia Opening 1. d3 e5 2. Nd2 d2d3 e7e5 b1d2 rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPPNPPPP/R1BQKBNR b KQkq - +A00 Van Geet Opening 1. Nc3 b1c3 rnbqkbnr/pppppppp/8/8/8/2N5/PPPPPPPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Battambang Variation 1. a3 e5 2. Nc3 a2a3 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/8/P1N5/1PPPPPPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Billockus-Johansen Gambit 1. Nc3 e5 2. Nf3 Bc5 b1c3 e7e5 g1f3 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - +A00 Van Geet Opening: Caro-Kann Variation, St. Patrick's Attack 1. Nc3 d5 2. e4 c6 3. h3 b1c3 d7d5 e2e4 c7c6 h2h3 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N4P/PPPP1PP1/R1BQKBNR b KQkq - +A00 Van Geet Opening: Damhaug Gambit 1. Nc3 d5 2. f4 e5 b1c3 d7d5 f2f4 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Dougherty Gambit 1. Nc3 d5 2. e4 dxe4 3. f3 b1c3 d7d5 e2e4 d5e4 f2f3 rnbqkbnr/ppp1pppp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Dunst-Perrenet Gambit 1. Nc3 d5 2. e4 dxe4 3. d3 b1c3 d7d5 e2e4 d5e4 d2d3 rnbqkbnr/ppp1pppp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Düsseldorf Gambit 1. Nc3 c5 2. b4 b1c3 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P6/2N5/P1PPPPPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Gladbacher Gambit 1. Nc3 e5 2. b3 d5 3. e4 dxe4 4. d3 b1c3 e7e5 b2b3 d7d5 e2e4 d5e4 d2d3 rnbqkbnr/ppp2ppp/8/4p3/4p3/1PNP4/P1P2PPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Hector Gambit 1. Nc3 d5 2. e4 dxe4 3. Bc4 b1c3 d7d5 e2e4 d5e4 f1c4 rnbqkbnr/ppp1pppp/8/8/2B1p3/2N5/PPPP1PPP/R1BQK1NR b KQkq - +A00 Van Geet Opening: Hergert Gambit 1. Nc3 d6 2. f4 e5 3. fxe5 Nc6 b1c3 d7d6 f2f4 e7e5 f4e5 b8c6 r1bqkbnr/ppp2ppp/2np4/4P3/8/2N5/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Hulsemann Gambit 1. Nc3 e5 2. e3 d5 3. Qh5 Be6 b1c3 e7e5 e2e3 d7d5 d1h5 c8e6 rn1qkbnr/ppp2ppp/4b3/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq - +A00 Van Geet Opening: Jendrossek Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 f5 4. Nf2 Nf6 5. Nf3 c5 6. b4 b1c3 d7d5 f2f4 d5d4 c3e4 f7f5 e4f2 g8f6 g1f3 c7c5 b2b4 rnbqkb1r/pp2p1pp/5n2/2p2p2/1P1p1P2/5N2/P1PPPNPP/R1BQKB1R b KQkq - +A00 Van Geet Opening: Kluever Gambit 1. Nc3 f5 2. e4 fxe4 3. d3 b1c3 f7f5 e2e4 f5e4 d2d3 rnbqkbnr/ppppp1pp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Laroche Gambit 1. Nc3 b5 b1c3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/2N5/PPPPPPPP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Liebig Gambit 1. Nc3 e5 2. e3 d5 3. Qh5 Nf6 b1c3 e7e5 e2e3 d7d5 d1h5 g8f6 rnbqkb1r/ppp2ppp/5n2/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq - +A00 Van Geet Opening: Melleby Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 c5 b1c3 d7d5 f2f4 d5d4 c3e4 c7c5 rnbqkbnr/pp2pppp/8/2p5/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Myers Attack 1. Nc3 g6 2. h4 b1c3 g7g6 h2h4 rnbqkbnr/pppppp1p/6p1/8/7P/2N5/PPPPPPP1/R1BQKBNR b KQkq - +A00 Van Geet Opening: Napoleon Attack 1. Nc3 e5 2. Nf3 Nc6 3. d4 b1c3 e7e5 g1f3 b8c6 d2d4 r1bqkbnr/pppp1ppp/2n5/4p3/3P4/2N2N2/PPP1PPPP/R1BQKB1R b KQkq - +A00 Van Geet Opening: Novosibirsk Variation 1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4 b1c3 c7c5 d2d4 c5d4 d1d4 b8c6 d4h4 r1bqkbnr/pp1ppppp/2n5/8/7Q/2N5/PPP1PPPP/R1B1KBNR b KQkq - +A00 Van Geet Opening: Pfeiffer Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 e5 b1c3 d7d5 f2f4 d5d4 c3e4 e7e5 rnbqkbnr/ppp2ppp/8/4p3/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Pfeiffer Gambit, Sleipnir Countergambit 1. Nc3 d5 2. f4 d4 3. Ne4 e5 4. Nf3 b1c3 d7d5 f2f4 d5d4 c3e4 e7e5 g1f3 rnbqkbnr/ppp2ppp/8/4p3/3pNP2/5N2/PPPPP1PP/R1BQKB1R b KQkq - +A00 Van Geet Opening: Reversed Nimzowitsch 1. Nc3 e5 b1c3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Reversed Scandinavian 1. Nc3 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qa4 b1c3 e7e5 d2d4 e5d4 d1d4 b8c6 d4a4 r1bqkbnr/pppp1ppp/2n5/8/Q7/2N5/PPP1PPPP/R1B1KBNR b KQkq - +A00 Van Geet Opening: Sicilian Two Knights 1. Nc3 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 b1c3 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 r1bqkbnr/pp1ppppp/2n5/8/3N4/2N5/PPP1PPPP/R1BQKB1R b KQkq - +A00 Van Geet Opening: Sleipnir Gambit 1. Nc3 d5 2. e3 e5 3. d4 Bb4 b1c3 d7d5 e2e3 e7e5 d2d4 f8b4 rnbqk1nr/ppp2ppp/8/3pp3/1b1P4/2N1P3/PPP2PPP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Twyble Attack 1. Nc3 c5 2. Rb1 b1c3 c7c5 a1b1 rnbqkbnr/pp1ppppp/8/2p5/8/2N5/PPPPPPPP/1RBQKBNR b Kkq - +A00 Van Geet Opening: Tübingen Gambit 1. Nc3 Nf6 2. g4 b1c3 g8f6 g2g4 rnbqkb1r/pppppppp/5n2/8/6P1/2N5/PPPPPP1P/R1BQKBNR b KQkq - +A00 Van Geet Opening: Venezolana Variation 1. Nc3 d5 2. d3 Nf6 3. g3 b1c3 d7d5 d2d3 g8f6 g2g3 rnbqkb1r/ppp1pppp/5n2/3p4/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq - +A00 Van Geet Opening: Warsteiner Gambit 1. Nc3 d5 2. f4 g5 b1c3 d7d5 f2f4 g7g5 rnbqkbnr/ppp1pp1p/8/3p2p1/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van't Kruijs Opening 1. e3 e2e3 rnbqkbnr/pppppppp/8/8/8/4P3/PPPP1PPP/RNBQKBNR b KQkq - +A00 Van't Kruijs Opening: Bouncing Bishop Variation 1. e3 e5 2. Bc4 b5 3. Bb3 e2e3 e7e5 f1c4 b7b5 c4b3 rnbqkbnr/p1pp1ppp/8/1p2p3/8/1B2P3/PPPP1PPP/RNBQK1NR b KQkq - +A00 Van't Kruijs Opening: Keoni-Hiva Gambit Delayed 1. e3 d5 2. Nc3 Nf6 3. a3 e5 4. f4 exf4 5. Nf3 e2e3 d7d5 b1c3 g8f6 a2a3 e7e5 f2f4 e5f4 g1f3 rnbqkb1r/ppp2ppp/5n2/3p4/5p2/P1N1PN2/1PPP2PP/R1BQKB1R b KQkq - +A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Akahi Variation 1. e3 e5 2. Nc3 Nf6 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 g8f6 f2f4 e5f4 g1f3 rnbqkb1r/pppp1ppp/5n2/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - +A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Alua Variation 1. e3 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 r1bqkbnr/pppp1ppp/2n5/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - +A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Ekolu Variation 1. e3 e5 2. Nc3 d5 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 d7d5 f2f4 e5f4 g1f3 rnbqkbnr/ppp2ppp/8/3p4/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - +A00 Venezolana Opening 1. d3 c5 2. Nc3 Nc6 3. g3 d2d3 c7c5 b1c3 b8c6 g2g3 r1bqkbnr/pp1ppppp/2n5/2p5/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq - +A00 Ware Opening 1. a4 a2a4 rnbqkbnr/pppppppp/8/8/P7/8/1PPPPPPP/RNBQKBNR b KQkq - +A00 Ware Opening: Cologne Gambit 1. a4 b6 2. d4 d5 3. Nc3 Nd7 a2a4 b7b6 d2d4 d7d5 b1c3 b8d7 r1bqkbnr/p1pnpppp/1p6/3p4/P2P4/2N5/1PP1PPPP/R1BQKBNR w KQkq - +A00 Ware Opening: Meadow Hay Trap 1. a4 e5 2. Ra3 a2a4 e7e5 a1a3 rnbqkbnr/pppp1ppp/8/4p3/P7/R7/1PPPPPPP/1NBQKBNR b Kkq - +A00 Ware Opening: Ware Gambit 1. a4 e5 2. a5 d5 3. e3 f5 4. a6 a2a4 e7e5 a4a5 d7d5 e2e3 f7f5 a5a6 rnbqkbnr/ppp3pp/P7/3ppp2/8/4P3/1PPP1PPP/RNBQKBNR b KQkq - +A00 Ware Opening: Wing Gambit 1. a4 b5 2. axb5 Bb7 a2a4 b7b5 a4b5 c8b7 rn1qkbnr/pbpppppp/8/1P6/8/8/1PPPPPPP/RNBQKBNR w KQkq - +A00 Zukertort Opening: Reversed Mexican Defense 1. Nc3 d5 2. Nf3 b1c3 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/8/2N2N2/PPPPPPPP/R1BQKB1R b KQkq - +A01 Nimzo-Larsen Attack 1. b3 b2b3 rnbqkbnr/pppppppp/8/8/8/1P6/P1PPPPPP/RNBQKBNR b KQkq - +A01 Nimzo-Larsen Attack: Classical Variation 1. b3 d5 b2b3 d7d5 rnbqkbnr/ppp1pppp/8/3p4/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Dutch Variation 1. b3 f5 b2b3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: English Variation 1. b3 c5 b2b3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Graz Attack 1. b3 d5 2. Ba3 b2b3 d7d5 c1a3 rnbqkbnr/ppp1pppp/8/3p4/8/BP6/P1PPPPPP/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Indian Variation 1. b3 Nf6 b2b3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 b2b3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 2. Bb2 Nc6 b2b3 e7e5 c1b2 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/8/1P6/PBPPPPPP/RN1QKBNR w KQkq - +A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 2. Bb2 Nc6 3. e3 b2b3 e7e5 c1b2 b8c6 e2e3 r1bqkbnr/pppp1ppp/2n5/4p3/8/1P2P3/PBPP1PPP/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Pachman Gambit 1. b3 e5 2. Bb2 Nc6 3. f4 b2b3 e7e5 c1b2 b8c6 f2f4 r1bqkbnr/pppp1ppp/2n5/4p3/5P2/1P6/PBPPP1PP/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Polish Variation 1. b3 b5 b2b3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Ringelbach Gambit 1. b3 f5 2. Bb2 e6 3. e4 b2b3 f7f5 c1b2 e7e6 e2e4 rnbqkbnr/pppp2pp/4p3/5p2/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Spike Variation 1. b3 Nf6 2. Bb2 g6 3. g4 b2b3 g8f6 c1b2 g7g6 g2g4 rnbqkb1r/pppppp1p/5np1/8/6P1/1P6/PBPPPP1P/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Symmetrical Variation 1. b3 b6 b2b3 b7b6 rnbqkbnr/p1pppppp/1p6/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A02 Bird Opening 1. f4 f2f4 rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq - +A02 Bird Opening 1. f4 Nf6 f2f4 g8f6 rnbqkb1r/pppppppp/5n2/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Batavo-Polish Attack 1. f4 Nf6 2. Nf3 g6 3. b4 f2f4 g8f6 g1f3 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/1P3P2/5N2/P1PPP1PP/RNBQKB1R b KQkq - +A02 Bird Opening: From's Gambit 1. f4 e5 f2f4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: From's Gambit, Bahr Gambit 1. f4 e5 2. Nc3 f2f4 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/5P2/2N5/PPPPP1PP/R1BQKBNR b KQkq - +A02 Bird Opening: From's Gambit, Langheld Gambit 1. f4 e5 2. fxe5 d6 3. exd6 Nf6 f2f4 e7e5 f4e5 d7d6 e5d6 g8f6 rnbqkb1r/ppp2ppp/3P1n2/8/8/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: From's Gambit, Lasker Variation 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5 f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g7g5 rnbqk1nr/ppp2p1p/3b4/6p1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq - +A02 Bird Opening: From's Gambit, Lipke Variation 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4 f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g8h6 d2d4 rnbqk2r/ppp2ppp/3b3n/8/3P4/5N2/PPP1P1PP/RNBQKB1R b KQkq - +A02 Bird Opening: Hobbs Gambit 1. f4 g5 f2f4 g7g5 rnbqkbnr/pppppp1p/8/6p1/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Hobbs-Zilbermints Gambit 1. f4 h6 2. Nf3 g5 f2f4 h7h6 g1f3 g7g5 rnbqkbnr/pppppp2/7p/6p1/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq - +A02 Bird Opening: Horsefly Defense 1. f4 Nh6 f2f4 g8h6 rnbqkb1r/pppppppp/7n/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Lasker Gambit 1. f4 e5 2. fxe5 f6 f2f4 e7e5 f4e5 f7f6 rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Mujannah 1. f4 Nf6 2. c4 f2f4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq - +A02 Bird Opening: Myers Defense 1. f4 b5 f2f4 b7b5 rnbqkbnr/p1pppppp/8/1p6/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Platz Gambit 1. f4 e5 2. fxe5 Ne7 f2f4 e7e5 f4e5 g8e7 rnbqkb1r/ppppnppp/8/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Schlechter Gambit 1. f4 e5 2. fxe5 Nc6 f2f4 e7e5 f4e5 b8c6 r1bqkbnr/pppp1ppp/2n5/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Siegener Gambit 1. f4 e5 2. d4 exd4 3. Nf3 c5 4. c3 f2f4 e7e5 d2d4 e5d4 g1f3 c7c5 c2c3 rnbqkbnr/pp1p1ppp/8/2p5/3p1P2/2P2N2/PP2P1PP/RNBQKB1R b KQkq - +A02 Bird Opening: Swiss Gambit 1. f4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 f2f4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/8/4pPP1/2N5/PPPP3P/R1BQKBNR b KQkq - +A02 Bird Opening: Wagner-Zwitersch Gambit 1. f4 f5 2. e4 f2f4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +A02 System: Double Duck Formation 1. f4 f5 2. d4 d5 f2f4 f7f5 d2d4 d7d5 rnbqkbnr/ppp1p1pp/8/3p1p2/3P1P2/8/PPP1P1PP/RNBQKBNR w KQkq - +A03 Bird Opening: Dutch Variation 1. f4 d5 f2f4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A03 Bird Opening: Dutch Variation, Dudweiler Gambit 1. f4 d5 2. g4 f2f4 d7d5 g2g4 rnbqkbnr/ppp1pppp/8/3p4/5PP1/8/PPPPP2P/RNBQKBNR b KQkq - +A03 Bird Opening: Lasker Variation 1. f4 d5 2. Nf3 Nf6 3. e3 c5 f2f4 d7d5 g1f3 g8f6 e2e3 c7c5 rnbqkb1r/pp2pppp/5n2/2pp4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq - +A03 Bird Opening: Sturm Gambit 1. f4 d5 2. c4 f2f4 d7d5 c2c4 rnbqkbnr/ppp1pppp/8/3p4/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq - +A03 Bird Opening: Thomas Gambit 1. f4 d5 2. b3 Nf6 3. Bb2 d4 4. Nf3 c5 5. e3 f2f4 d7d5 b2b3 g8f6 c1b2 d5d4 g1f3 c7c5 e2e3 rnbqkb1r/pp2pppp/5n2/2p5/3p1P2/1P2PN2/PBPP2PP/RN1QKB1R b KQkq - +A03 Bird Opening: Williams Gambit 1. f4 d5 2. e4 f2f4 d7d5 e2e4 rnbqkbnr/ppp1pppp/8/3p4/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +A03 Bird Opening: Williams Gambit 1. f4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Qe2 f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 d1e2 rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPQ1PP/R1B1KBNR b KQkq - +A03 Bird Opening: Williams-Zilbermints Gambit 1. f4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Nge2 f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 g1e2 rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPN1PP/R1BQKB1R b KQkq - +A04 Colle System: Rhamphorhynchus Variation 1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+ g1f3 c7c5 e2e3 g7g6 d2d4 f8g7 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/8/4PN2/PPP2PPP/RNBQKB1R w KQkq - +A04 Modern Defense: Semi-Averbakh Variation, Polish Variation 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qb6 g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8b6 rnb1k1nr/pp1pppbp/1q4p1/2p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq - +A04 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+ g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq - +A04 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted 1. Nf3 g6 2. d4 Bg7 3. e4 d6 4. c4 c5 5. dxc5 Qa5+ g1f3 g7g6 d2d4 f8g7 e2e4 d7d6 c2c4 c7c5 d4c5 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/5N2/PP3PPP/RNBQKB1R w KQkq - +A04 Zukertort Opening 1. Nf3 g1f3 rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq - +A04 Zukertort Opening: Arctic Defense 1. Nf3 f6 g1f3 f7f6 rnbqkbnr/ppppp1pp/5p2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Arctic Defense, Drunken Knight Variation 1. Nf3 f6 2. e4 Nh6 3. d4 Nf7 g1f3 f7f6 e2e4 g8h6 d2d4 h6f7 rnbqkb1r/pppppnpp/5p2/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Basman Defense 1. Nf3 h6 g1f3 h7h6 rnbqkbnr/ppppppp1/7p/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Black Mustang Defense 1. Nf3 Nc6 g1f3 b8c6 r1bqkbnr/pppppppp/2n5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Drunken Cavalry Variation 1. Nf3 Na6 2. e4 Nh6 g1f3 b8a6 e2e4 g8h6 r1bqkb1r/pppppppp/n6n/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Dutch Variation 1. Nf3 f5 g1f3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Herrstrom Gambit 1. Nf3 g5 g1f3 g7g5 rnbqkbnr/pppppp1p/8/6p1/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Kingside Fianchetto 1. Nf3 g6 g1f3 g7g6 rnbqkbnr/pppppp1p/6p1/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Lisitsyn Gambit 1. Nf3 f5 2. e4 g1f3 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +A04 Zukertort Opening: Lisitsyn Gambit Deferred 1. Nf3 f5 2. d3 Nf6 3. e4 g1f3 f7f5 d2d3 g8f6 e2e4 rnbqkb1r/ppppp1pp/5n2/5p2/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq - +A04 Zukertort Opening: Pirc Invitation 1. Nf3 d6 g1f3 d7d6 rnbqkbnr/ppp1pppp/3p4/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Polish Defense 1. Nf3 b5 g1f3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Queen's Gambit Invitation 1. Nf3 e6 g1f3 e7e6 rnbqkbnr/pppp1ppp/4p3/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Queenside Fianchetto Variation 1. Nf3 b6 g1f3 b7b6 rnbqkbnr/p1pppppp/1p6/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Ross Gambit 1. Nf3 e5 g1f3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Shabalov Gambit 1. Nf3 e6 2. c4 a6 3. Nc3 c5 4. g3 b5 g1f3 e7e6 c2c4 a7a6 b1c3 c7c5 g2g3 b7b5 rnbqkbnr/3p1ppp/p3p3/1pp5/2P5/2N2NP1/PP1PPP1P/R1BQKB1R w KQkq - +A04 Zukertort Opening: Sicilian Invitation 1. Nf3 c5 g1f3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Slav Invitation 1. Nf3 c6 g1f3 c7c6 rnbqkbnr/pp1ppppp/2p5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Speelsmet Gambit 1. Nf3 c5 2. d4 cxd4 3. e3 g1f3 c7c5 d2d4 c5d4 e2e3 rnbqkbnr/pp1ppppp/8/8/3p4/4PN2/PPP2PPP/RNBQKB1R b KQkq - +A04 Zukertort Opening: St. George Defense 1. Nf3 a6 g1f3 a7a6 rnbqkbnr/1ppppppp/p7/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: The Walrus 1. Nf3 e5 2. Nxe5 Nc6 3. Nxc6 dxc6 g1f3 e7e5 f3e5 b8c6 e5c6 d7c6 r1bqkbnr/ppp2ppp/2p5/8/8/8/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Vos Gambit 1. Nf3 d6 2. d4 e5 g1f3 d7d6 d2d4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Wade Defense 1. Nf3 d6 2. e4 Bg4 g1f3 d7d6 e2e4 c8g4 rn1qkbnr/ppp1pppp/3p4/8/4P1b1/5N2/PPPP1PPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Ware Defense 1. Nf3 a5 g1f3 a7a5 rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A05 King's Indian Attack 1. Nf3 Nf6 2. g3 d5 g1f3 g8f6 g2g3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A05 King's Indian Attack: Smyslov Variation 1. Nf3 Nf6 2. g3 g6 3. b4 g1f3 g8f6 g2g3 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/1P6/5NP1/P1PPPP1P/RNBQKB1R b KQkq - +A05 King's Indian Attack: Spassky Variation 1. Nf3 Nf6 2. g3 b5 g1f3 g8f6 g2g3 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A05 King's Indian Attack: Symmetrical Defense 1. Nf3 Nf6 2. g3 g6 g1f3 g8f6 g2g3 g7g6 rnbqkb1r/pppppp1p/5np1/8/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A05 King's Indian Attack: Wahls Defense 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d5 g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d3 d7d5 rnbq1rk1/ppp1ppbp/5np1/3p4/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w - - +A05 Polish Opening: Zukertort System 1. Nf3 Nf6 2. b4 g1f3 g8f6 b2b4 rnbqkb1r/pppppppp/5n2/8/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq - +A05 Zukertort Opening 1. Nf3 Nf6 g1f3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A05 Zukertort Opening 1. Nf3 Nf6 2. Nc3 Nc6 g1f3 g8f6 b1c3 b8c6 r1bqkb1r/pppppppp/2n2n2/8/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - +A05 Zukertort Opening: Double Fianchetto Attack 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O g1f3 g8f6 g2g3 g7g6 b2b3 f8g7 c1b2 e8g8 f1g2 d7d6 e1g1 rnbq1rk1/ppp1ppbp/3p1np1/8/8/1P3NP1/PBPPPPBP/RN1Q1RK1 b - - +A05 Zukertort Opening: Lemberger Gambit 1. Nf3 Nf6 2. e4 g1f3 g8f6 e2e4 rnbqkb1r/pppppppp/5n2/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +A05 Zukertort Opening: Myers Polish Attack 1. Nf3 Nf6 2. a4 g6 3. b4 g1f3 g8f6 a2a4 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/PP6/5N2/2PPPPPP/RNBQKB1R b KQkq - +A05 Zukertort Opening: Nimzo-Larsen Variation 1. Nf3 Nf6 2. b3 g1f3 g8f6 b2b3 rnbqkb1r/pppppppp/5n2/8/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq - +A05 Zukertort Opening: Quiet System 1. Nf3 Nf6 2. e3 g1f3 g8f6 e2e3 rnbqkb1r/pppppppp/5n2/8/8/4PN2/PPPP1PPP/RNBQKB1R b KQkq - +A06 Nimzo-Larsen Attack: Classical Variation 1. Nf3 d5 2. b3 g1f3 d7d5 b2b3 rnbqkbnr/ppp1pppp/8/3p4/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq - +A06 Nimzo-Larsen Attack: Norfolk Gambit 1. Nf3 d5 2. b3 c5 3. e4 g1f3 d7d5 b2b3 c7c5 e2e4 rnbqkbnr/pp2pppp/8/2pp4/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq - +A06 Nimzo-Larsen Attack: Norfolk Gambit 1. Nf3 d5 2. b3 Nf6 3. Bb2 c5 4. e4 g1f3 d7d5 b2b3 g8f6 c1b2 c7c5 e2e4 rnbqkb1r/pp2pppp/5n2/2pp4/4P3/1P3N2/PBPP1PPP/RN1QKB1R b KQkq - +A06 Zukertort Opening 1. Nf3 d5 g1f3 d7d5 rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A06 Zukertort Opening: Ampel Variation 1. Nf3 d5 2. Rg1 g1f3 d7d5 h1g1 rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKBR1 b Qkq - +A06 Zukertort Opening: Old Indian Attack 1. Nf3 d5 2. d3 g1f3 d7d5 d2d3 rnbqkbnr/ppp1pppp/8/3p4/8/3P1N2/PPP1PPPP/RNBQKB1R b KQkq - +A06 Zukertort Opening: Pachman Gambit 1. Nf3 d5 2. e3 c5 3. c4 dxc4 4. b3 g1f3 d7d5 e2e3 c7c5 c2c4 d5c4 b2b3 rnbqkbnr/pp2pppp/8/2p5/2p5/1P2PN2/P2P1PPP/RNBQKB1R b KQkq - +A06 Zukertort Opening: Regina-Nu Gambit 1. Nf3 d5 2. b3 c5 3. c4 dxc4 4. Nc3 g1f3 d7d5 b2b3 c7c5 c2c4 d5c4 b1c3 rnbqkbnr/pp2pppp/8/2p5/2p5/1PN2N2/P2PPPPP/R1BQKB1R b KQkq - +A06 Zukertort Opening: Santasiere's Folly 1. b4 d5 2. Nf3 b2b4 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq - +A06 Zukertort Opening: Tennison Gambit 1. e4 d5 2. Nf3 e2e4 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +A06 Zukertort Opening: The Potato 1. Nf3 d5 2. a4 g1f3 d7d5 a2a4 rnbqkbnr/ppp1pppp/8/3p4/P7/5N2/1PPPPPPP/RNBQKB1R b KQkq - +A07 English Opening: Anglo-Indian Defense, Grünfeld Formation 1. g3 d5 2. Nf3 g6 3. c4 Nf6 g2g3 d7d5 g1f3 g7g6 c2c4 g8f6 rnbqkb1r/ppp1pp1p/5np1/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A07 Hungarian Opening: Wiedenhagen-Beta Gambit 1. g3 d5 2. Nf3 g5 g2g3 d7d5 g1f3 g7g5 rnbqkbnr/ppp1pp1p/8/3p2p1/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack 1. Nf3 d5 2. g3 g1f3 d7d5 g2g3 rnbqkbnr/ppp1pppp/8/3p4/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq - +A07 King's Indian Attack: Double Fianchetto 1. Nf3 d5 2. g3 g6 g1f3 d7d5 g2g3 g7g6 rnbqkbnr/ppp1pp1p/6p1/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack: Keres Variation 1. Nf3 d5 2. g3 Bg4 g1f3 d7d5 g2g3 c8g4 rn1qkbnr/ppp1pppp/8/3p4/6b1/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack: Keres Variation 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 g1f3 d7d5 g2g3 c8g4 f1g2 b8d7 r2qkbnr/pppnpppp/8/3p4/6b1/5NP1/PPPPPPBP/RNBQK2R w KQkq - +A07 King's Indian Attack: Omega-Delta Gambit 1. Nf3 d5 2. g3 e5 g1f3 d7d5 g2g3 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack: Pachman System 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 g1f3 d7d5 g2g3 g7g6 f1g2 f8g7 e1g1 e7e5 d2d3 g8e7 rnbqk2r/ppp1npbp/6p1/3pp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq - +A07 King's Indian Attack: Sicilian Variation 1. Nf3 d5 2. g3 c5 g1f3 d7d5 g2g3 c7c5 rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack: Yugoslav Variation 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bg4 g1f3 g8f6 g2g3 d7d5 f1g2 c7c6 e1g1 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/6b1/5NP1/PPPPPPBP/RNBQ1RK1 w kq - +A08 King's Indian Attack: French Variation 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 r1bqkbnr/pp2pppp/2n5/2pp4/8/5NP1/PPPPPPBP/RNBQK2R w KQkq - +A08 King's Indian Attack: Sicilian Variation 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. Re1 e2e4 e7e6 d2d3 d7d5 b1d2 g8f6 g1f3 c7c5 g2g3 b8c6 f1g2 f8e7 e1g1 e8g8 f1e1 r1bq1rk1/pp2bppp/2n1pn2/2pp4/4P3/3P1NP1/PPPN1PBP/R1BQR1K1 b - - +A08 King's Indian Attack: Sicilian Variation 1. Nf3 d5 2. g3 c5 3. Bg2 g1f3 d7d5 g2g3 c7c5 f1g2 rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPPBP/RNBQK2R b KQkq - +A08 Zukertort Opening: Grünfeld Reversed 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. O-O g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 d2d4 e7e6 e1g1 r1bqkbnr/pp3ppp/2n1p3/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 b kq - +A09 Réti Opening 1. Nf3 d5 2. c4 g1f3 d7d5 c2c4 rnbqkbnr/ppp1pppp/8/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A09 Réti Opening: Advance Variation 1. Nf3 d5 2. c4 d4 g1f3 d7d5 c2c4 d5d4 rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A09 Réti Opening: Advance Variation, Michel Gambit 1. Nf3 d5 2. c4 d4 3. b4 c5 g1f3 d7d5 c2c4 d5d4 b2b4 c7c5 rnbqkbnr/pp2pppp/8/2p5/1PPp4/5N2/P2PPPPP/RNBQKB1R w KQkq - +A09 Réti Opening: Penguin Variation 1. Nf3 d5 2. c4 d4 3. Rg1 g1f3 d7d5 c2c4 d5d4 h1g1 rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKBR1 b Qkq - +A09 Réti Opening: Reversed Blumenfeld Gambit 1. Nf3 d5 2. c4 d4 3. e3 c5 4. b4 g1f3 d7d5 c2c4 d5d4 e2e3 c7c5 b2b4 rnbqkbnr/pp2pppp/8/2p5/1PPp4/4PN2/P2P1PPP/RNBQKB1R b KQkq - +A09 Réti Opening: Réti Accepted 1. Nf3 d5 2. c4 dxc4 g1f3 d7d5 c2c4 d5c4 rnbqkbnr/ppp1pppp/8/8/2p5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A09 Réti Opening: Réti Gambit, Keres Variation 1. Nf3 d5 2. c4 dxc4 3. e3 Be6 g1f3 d7d5 c2c4 d5c4 e2e3 c8e6 rn1qkbnr/ppp1pppp/4b3/8/2p5/4PN2/PP1P1PPP/RNBQKB1R w KQkq - +A09 Réti Opening: Zilbermints Gambit 1. Nf3 d5 2. c4 b5 g1f3 d7d5 c2c4 b7b5 rnbqkbnr/p1p1pppp/8/1p1p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A10 Dutch Defense: Krause Variation 1. c4 f5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 d6 c2c4 f7f5 b1c3 g8f6 g1f3 b8c6 d2d4 d7d6 r1bqkb1r/ppp1p1pp/2np1n2/5p2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +A10 English Opening 1. c4 c2c4 rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq - +A10 English Opening: Adorjan Defense 1. c4 g6 2. e4 e5 c2c4 g7g6 e2e4 e7e5 rnbqkbnr/pppp1p1p/6p1/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Dutch Defense 1. c4 f5 c2c4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Dutch Defense, Hickmann Gambit 1. c4 f5 2. e4 c2c4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +A10 English Opening: Anglo-Dutch Variation, Chabanon Gambit 1. c4 f5 2. Nf3 d6 3. e4 c2c4 f7f5 g1f3 d7d6 e2e4 rnbqkbnr/ppp1p1pp/3p4/5p2/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +A10 English Opening: Anglo-Dutch Variation, Ferenc Gambit 1. c4 f5 2. Nc3 Nf6 3. e4 c2c4 f7f5 b1c3 g8f6 e2e4 rnbqkb1r/ppppp1pp/5n2/5p2/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq - +A10 English Opening: Anglo-Lithuanian Variation 1. c4 Nc6 c2c4 b8c6 r1bqkbnr/pppppppp/2n5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Scandinavian Defense 1. c4 d5 c2c4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Scandinavian Defense, Löhn Gambit 1. c4 d5 2. cxd5 e6 c2c4 d7d5 c4d5 e7e6 rnbqkbnr/ppp2ppp/4p3/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Scandinavian Defense, Malvinas Variation 1. c4 d5 2. cxd5 Qxd5 3. Nc3 Qa5 c2c4 d7d5 c4d5 d8d5 b1c3 d5a5 rnb1kbnr/ppp1pppp/8/q7/8/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A10 English Opening: Anglo-Scandinavian Defense, Schulz Gambit 1. c4 d5 2. cxd5 Nf6 c2c4 d7d5 c4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Great Snake Variation 1. c4 g6 c2c4 g7g6 rnbqkbnr/pppppp1p/6p1/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Jaenisch Gambit 1. c4 b5 c2c4 b7b5 rnbqkbnr/p1pppppp/8/1p6/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: King's English Variation, Botvinnik System, Prickly Pawn Pass System 1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. e4 d6 6. Nge2 e5 7. O-O c6 8. d3 a6 c2c4 g7g6 b1c3 f8g7 g2g3 g8f6 f1g2 e8g8 e2e4 d7d6 g1e2 e7e5 e1g1 c7c6 d2d3 a7a6 rnbq1rk1/1p3pbp/p1pp1np1/4p3/2P1P3/2NP2P1/PP2NPBP/R1BQ1RK1 w - - +A10 English Opening: Myers Variation 1. c4 g5 2. d4 Bg7 c2c4 g7g5 d2d4 f8g7 rnbqk1nr/ppppppbp/8/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A10 English Opening: Porcupine Variation 1. c4 f5 2. Nc3 Nf6 3. e4 fxe4 4. g4 c2c4 f7f5 b1c3 g8f6 e2e4 f5e4 g2g4 rnbqkb1r/ppppp1pp/5n2/8/2P1p1P1/2N5/PP1P1P1P/R1BQKBNR b KQkq - +A10 English Opening: Wade Gambit 1. c4 f5 2. g4 c2c4 f7f5 g2g4 rnbqkbnr/ppppp1pp/8/5p2/2P3P1/8/PP1PPP1P/RNBQKBNR b KQkq - +A10 English Opening: Zilbermints Gambit 1. c4 g5 2. d4 e5 c2c4 g7g5 d2d4 e7e5 rnbqkbnr/pppp1p1p/8/4p1p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A10 King's Indian Defense: Semi-Classical Variation, Exchange Variation 1. c4 g6 2. Nc3 Bg7 3. e3 Nf6 4. d4 O-O 5. Nf3 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 c2c4 g7g6 b1c3 f8g7 e2e3 g8f6 d2d4 e8g8 g1f3 d7d6 f1e2 b8d7 e1g1 e7e5 d4e5 d6e5 r1bq1rk1/pppn1pbp/5np1/4p3/2P5/2N1PN2/PP2BPPP/R1BQ1RK1 w - - +A10 Modern Defense: Averbakh Variation, Pseudo-Sämisch 1. c4 g6 2. e4 Bg7 3. d4 d6 4. Be3 Nf6 5. f3 c2c4 g7g6 e2e4 f8g7 d2d4 d7d6 c1e3 g8f6 f2f3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/4BP2/PP4PP/RN1QKBNR b KQkq - +A10 Modern Defense: Neo-Modern Defense 1. c4 g6 2. e4 Bg7 3. d4 e5 c2c4 g7g6 e2e4 f8g7 d2d4 e7e5 rnbqk1nr/pppp1pbp/6p1/4p3/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - +A11 English Opening: Caro-Kann Defensive System 1. c4 c6 c2c4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A12 Réti Opening: Anglo-Slav Variation, Bled Variation 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. c4 c6 g1f3 d7d5 b2b3 g8f6 c1b2 g7g6 c2c4 c7c6 rnbqkb1r/pp2pp1p/2p2np1/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 d5 2. c4 c6 3. b3 g1f3 d7d5 c2c4 c7c6 b2b3 rnbqkbnr/pp2pppp/2p5/3p4/2P5/1P3N2/P2PPPPP/RNBQKB1R b KQkq - +A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 d5 2. c4 c6 3. b3 Bg4 g1f3 d7d5 c2c4 c7c6 b2b3 c8g4 rn1qkbnr/pp2pppp/2p5/3p4/2P3b1/1P3N2/P2PPPPP/RNBQKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2 rnbqkb1r/pp2pppp/2p2n2/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R b KQkq - +A12 Réti Opening: Anglo-Slav Variation, Capablanca Variation 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bg4 c2c4 g8f6 g1f3 c7c6 b2b3 d7d5 c1b2 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, London Defensive System 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8f5 rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3NP1/P2PPP1P/RNBQKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, New York System 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2 c8f5 rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, Torre System 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bg4 c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3NP1/P2PPP1P/RNBQKB1R w KQkq - +A13 English Opening: Agincourt Defense 1. c4 e6 c2c4 e7e6 rnbqkbnr/pppp1ppp/4p3/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A13 English Opening: Agincourt Defense 1. c4 e6 2. Nf3 c2c4 e7e6 g1f3 rnbqkbnr/pppp1ppp/4p3/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A13 English Opening: Agincourt Defense 1. c4 e6 2. Nf3 d5 c2c4 e7e6 g1f3 d7d5 rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A13 English Opening: Agincourt Defense, Bogoljubov Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bd6 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8d6 rnbqk2r/ppp2ppp/3bpn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 English Opening: Agincourt Defense, Catalan Defense 1. Nf3 d5 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O g1f3 d7d5 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 rn1qkbnr/pbp2ppp/1p2p3/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq - +A13 English Opening: Agincourt Defense, Catalan Defense 1. Nf3 d5 2. c4 e6 3. g3 c5 g1f3 d7d5 c2c4 e7e6 g2g3 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A13 English Opening: Agincourt Defense, Catalan Defense Accepted 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 rnbqkb1r/ppp2ppp/4pn2/8/2p5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 c7c6 rnbqkb1r/pp3ppp/2p1pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 English Opening: Agincourt Defense, Kurajica Defense 1. Nf3 d5 2. c4 e6 3. g3 c6 g1f3 d7d5 c2c4 e7e6 g2g3 c7c6 rnbqkbnr/pp3ppp/2p1p3/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A13 English Opening: Agincourt Defense, Tarrasch Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. b3 c5 5. Bg2 Nc6 6. O-O Be7 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 b2b3 c7c5 f1g2 b8c6 e1g1 f8e7 r1bqk2r/pp2bppp/2n1pn2/2pp4/2P5/1P3NP1/P2PPPBP/RNBQ1RK1 w kq - +A13 English Opening: Agincourt Defense, Wimpy System 1. Nf3 Nf6 2. c4 e6 3. b3 d5 4. Bb2 c5 5. e3 g1f3 g8f6 c2c4 e7e6 b2b3 d7d5 c1b2 c7c5 e2e3 rnbqkb1r/pp3ppp/4pn2/2pp4/2P5/1P2PN2/PB1P1PPP/RN1QKB1R b KQkq - +A13 English Opening: Neo-Catalan 1. Nf3 Nf6 2. c4 e6 3. g3 d5 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 rnbqkb1r/ppp2ppp/4pn2/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A13 English Opening: Neo-Catalan Declined 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 English Opening: Romanishin Gambit 1. Nf3 Nf6 2. c4 e6 3. g3 a6 4. Bg2 b5 g1f3 g8f6 c2c4 e7e6 g2g3 a7a6 f1g2 b7b5 rnbqkb1r/2pp1ppp/p3pn2/1p6/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 Horwitz Defense: Zilbermints Gambit 1. c4 e6 2. d4 e5 c2c4 e7e6 d2d4 e6e5 rnbqkbnr/pppp1ppp/8/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A14 English Opening: Agincourt Defense, Keres Defense 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nc6 7. O-O Be7 c2c4 c7c5 g1f3 g8f6 b1c3 e7e6 g2g3 d7d5 c4d5 f6d5 f1g2 b8c6 e1g1 f8e7 r1bqk2r/pp2bppp/2n1p3/2pn4/8/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq - +A14 English Opening: Agincourt Defense, Neo-Catalan Declined 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 e1g1 rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq - +A14 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation, Stonewall Line 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c6 7. Bb2 g1f3 d7d5 c2c4 e7e6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 b2b3 c7c6 c1b2 rnbq1rk1/pp2bppp/2p1pn2/3p4/2P5/1P3NP1/PB1PPPBP/RN1Q1RK1 b - - +A15 English Opening: Anglo-Indian Defense 1. c4 Nf6 c2c4 g8f6 rnbqkb1r/pppppppp/5n2/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A15 English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 rnbqk2r/ppppppbp/5np1/8/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq - +A15 English Opening: Anglo-Indian Defense, King's Indian Formation 1. Nf3 Nf6 2. c4 g6 g1f3 g8f6 c2c4 g7g6 rnbqkb1r/pppppp1p/5np1/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 g1f3 g8f6 c2c4 b7b6 g2g3 c8b7 f1g2 g7g6 rn1qkb1r/pbpppp1p/1p3np1/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A15 English Opening: Anglo-Indian Defense, King's Knight Variation 1. Nf3 Nf6 2. c4 g1f3 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A15 English Opening: Anglo-Indian Defense, Old Indian Formation 1. Nf3 Nf6 2. c4 d6 g1f3 g8f6 c2c4 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. Nf3 Nf6 2. c4 b6 g1f3 g8f6 c2c4 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 g1f3 g8f6 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 rn1qkb1r/pbpp1ppp/1p2pn2/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A15 English Opening: Anglo-Indian Defense, Romanishin Variation 1. Nf3 Nf6 2. c4 e6 3. g3 a6 g1f3 g8f6 c2c4 e7e6 g2g3 a7a6 rnbqkb1r/1ppp1ppp/p3pn2/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Scandinavian Defense 1. Nf3 Nf6 2. c4 d5 g1f3 g8f6 c2c4 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Scandinavian Defense, Exchange Variation 1. Nf3 Nf6 2. c4 d5 3. cxd5 Nxd5 g1f3 g8f6 c2c4 d7d5 c4d5 f6d5 rnbqkb1r/ppp1pppp/8/3n4/8/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Slav Formation 1. Nf3 Nf6 2. c4 g6 3. g3 c6 g1f3 g8f6 c2c4 g7g6 g2g3 c7c6 rnbqkb1r/pp1ppp1p/2p2np1/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A15 English Orangutan 1. c4 Nf6 2. b4 c2c4 g8f6 b2b4 rnbqkb1r/pppppppp/5n2/8/1PP5/8/P2PPPPP/RNBQKBNR b KQkq - +A15 Polish Opening: King's Indian Variation, Sokolsky Attack 1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 O-O 5. e3 d6 6. d4 g1f3 g8f6 c2c4 g7g6 b2b4 f8g7 c1b2 e8g8 e2e3 d7d6 d2d4 rnbq1rk1/ppp1ppbp/3p1np1/8/1PPP4/4PN2/PB3PPP/RN1QKB1R b KQ - +A16 English Opening: Anglo-Grünfeld Defense 1. c4 Nf6 2. Nc3 d5 c2c4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A16 English Opening: Anglo-Grünfeld Defense, Korchnoi Variation 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Bg7 6. Bg2 e5 g1f3 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 g2g3 f8g7 f1g2 e7e5 rnbqk2r/ppp2pbp/6p1/3np3/8/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - +A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g1f3 rnbqkb1r/ppp1pppp/8/3n4/8/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - +A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5b6 rnbqkb1r/ppp1pp1p/1n4p1/8/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5c3 rnbqkb1r/ppp1pp1p/6p1/8/8/2n3P1/PP1PPPBP/R1BQK1NR w KQkq - +A16 English Opening: Anglo-Indian Defense, Queen's Knight Variation 1. c4 Nf6 2. Nc3 c2c4 g8f6 b1c3 rnbqkb1r/pppppppp/5n2/8/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - +A17 English Opening: Anglo-Indian Defense, Hedgehog System 1. c4 Nf6 2. Nc3 e6 c2c4 g8f6 b1c3 e7e6 rnbqkb1r/pppp1ppp/4pn2/8/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A17 English Opening: Anglo-Indian Defense, Nimzo-English 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 g1f3 g8f6 c2c4 e7e6 b1c3 f8b4 rnbqk2r/pppp1ppp/4pn2/8/1bP5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A17 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 rnbqkb1r/p1pp1ppp/1p2pn2/8/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A17 English Opening: Anglo-Indian Defense, Queen's Indian Variation 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. e4 Bb7 5. Bd3 c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 e2e4 c8b7 f1d3 rn1qkb1r/pbpp1ppp/1p2pn2/8/2P1P3/2NB1N2/PP1P1PPP/R1BQK2R b KQkq - +A17 English Opening: Anglo-Indian Defense, Zvjaginsev-Krasenkow Attack 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. g4 c2c4 g8f6 b1c3 e7e6 g1f3 f8b4 g2g4 rnbqk2r/pppp1ppp/4pn2/8/1bP3P1/2N2N2/PP1PPP1P/R1BQKB1R b KQkq - +A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 c2c4 g8f6 b1c3 e7e6 e2e4 rnbqkb1r/pppp1ppp/4pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq - +A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 Nc6 c2c4 g8f6 b1c3 e7e6 e2e4 b8c6 r1bqkb1r/pppp1ppp/2n1pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq - +A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 c2c4 g8f6 b1c3 e7e6 e2e4 d7d5 e4e5 rnbqkb1r/ppp2ppp/4pn2/3pP3/2P5/2N5/PP1P1PPP/R1BQKBNR b KQkq - +A19 English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit 1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. e5 Ng8 c2c4 g8f6 b1c3 e7e6 e2e4 c7c5 e4e5 f6g8 rnbqkbnr/pp1p1ppp/4p3/2p1P3/2P5/2N5/PP1P1PPP/R1BQKBNR w KQkq - +A19 English Opening: Mikenas-Carls, Sicilian 1. c4 Nf6 2. Nc3 e6 3. e4 c5 c2c4 g8f6 b1c3 e7e6 e2e4 c7c5 rnbqkb1r/pp1p1ppp/4pn2/2p5/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq - +A20 English Opening: Drill Variation 1. c4 e5 2. g3 h5 c2c4 e7e5 g2g3 h7h5 rnbqkbnr/pppp1pp1/8/4p2p/2P5/6P1/PP1PPP1P/RNBQKBNR w KQkq - +A20 English Opening: King's English Variation 1. c4 e5 c2c4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A20 English Opening: King's English Variation, Kahiko-Hula Gambit 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3 c2c4 e7e5 e2e3 g8f6 f2f4 e5f4 g1f3 rnbqkb1r/pppp1ppp/5n2/8/2P2p2/4PN2/PP1P2PP/RNBQKB1R b KQkq - +A20 English Opening: King's English Variation, Nimzowitsch Variation 1. c4 e5 2. Nf3 c2c4 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A20 English Opening: King's English Variation, Nimzowitsch-Flohr Variation 1. c4 e5 2. Nf3 e4 c2c4 e7e5 g1f3 e5e4 rnbqkbnr/pppp1ppp/8/8/2P1p3/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A21 English Opening: King's English Variation 1. c4 e5 2. Nc3 d6 3. Nf3 c2c4 e7e5 b1c3 d7d6 g1f3 rnbqkbnr/ppp2ppp/3p4/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - +A21 English Opening: King's English Variation, Keres Defense 1. c4 e5 2. Nc3 d6 3. g3 c6 c2c4 e7e5 b1c3 d7d6 g2g3 c7c6 rnbqkbnr/pp3ppp/2pp4/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A21 English Opening: King's English Variation, Kramnik-Shirov Counterattack 1. c4 e5 2. Nc3 Bb4 c2c4 e7e5 b1c3 f8b4 rnbqk1nr/pppp1ppp/8/4p3/1bP5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A21 English Opening: King's English Variation, Reversed Sicilian 1. c4 e5 2. Nc3 c2c4 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - +A21 English Opening: King's English Variation, Smyslov Defense 1. c4 e5 2. Nc3 d6 3. Nf3 Bg4 c2c4 e7e5 b1c3 d7d6 g1f3 c8g4 rn1qkbnr/ppp2ppp/3p4/4p3/2P3b1/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A21 English Opening: King's English Variation, Troger Defense 1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6 c2c4 e7e5 b1c3 b8c6 g2g3 d7d6 f1g2 c8e6 r2qkbnr/ppp2ppp/2npb3/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A22 English Opening: Carls-Bremen System 1. c4 e5 2. Nc3 Nf6 3. g3 c2c4 e7e5 b1c3 g8f6 g2g3 rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - +A22 English Opening: King's English Variation, Bellon Gambit 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 b5 c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 b7b5 rnbqkb1r/p1pp1ppp/5n2/1p4N1/2P1p3/2N5/PP1PPPPP/R1BQKB1R w KQkq - +A22 English Opening: King's English Variation, Two Knights Variation 1. c4 e5 2. Nc3 Nf6 c2c4 e7e5 b1c3 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A22 English Opening: King's English Variation, Two Knights Variation, Reversed Dragon 1. c4 e5 2. Nc3 Nf6 3. g3 d5 c2c4 e7e5 b1c3 g8f6 g2g3 d7d5 rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A22 English Opening: King's English Variation, Two Knights Variation, Smyslov System 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 c2c4 e7e5 b1c3 g8f6 g2g3 f8b4 rnbqk2r/pppp1ppp/5n2/4p3/1bP5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A22 English Opening: King's English, Erbenheimer Gambit 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 Ng4 c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 f6g4 rnbqkb1r/pppp1ppp/8/6N1/2P1p1n1/2N5/PP1PPPPP/R1BQKB1R w KQkq - +A22 English Opening: King's English, Mazedonisch 1. c4 e5 2. Nc3 Nf6 3. f4 c2c4 e7e5 b1c3 g8f6 f2f4 rnbqkb1r/pppp1ppp/5n2/4p3/2P2P2/2N5/PP1PP1PP/R1BQKBNR b KQkq - +A23 English Opening: King's English Variation, Two Knights Variation, Keres Variation 1. c4 e5 2. Nc3 Nf6 3. g3 c6 c2c4 e7e5 b1c3 g8f6 g2g3 c7c6 rnbqkb1r/pp1p1ppp/2p2n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A24 English Opening: King's English Variation, Two Knights Variation, Fianchetto Line 1. c4 e5 2. Nc3 Nf6 3. g3 g6 c2c4 e7e5 b1c3 g8f6 g2g3 g7g6 rnbqkb1r/pppp1p1p/5np1/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A25 English Opening: Closed, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Rb1 Nh6 5. Bg2 Bg7 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 a1b1 g8h6 f1g2 f8g7 r1bqk2r/pppp1pbp/2n3pn/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR w Kkq - +A25 English Opening: Closed, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Nh6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 g8h6 r1bqk2r/ppp2pbp/2np2pn/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq - +A25 English Opening: King's English Variation, Bremen-Hort Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Be6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 c8e6 r2qk1nr/ppp2pbp/2npb1p1/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq - +A25 English Opening: King's English Variation, Closed System 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR b KQkq - +A25 English Opening: King's English Variation, Hungarian Attack 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 a1b1 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR b Kkq - +A25 English Opening: King's English Variation, Reversed Closed Sicilian 1. c4 e5 2. Nc3 Nc6 c2c4 e7e5 b1c3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A25 English Opening: King's English Variation, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A26 English Opening: King's English Variation, Botvinnik System 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 e2e4 r1bqk1nr/ppp2pbp/2np2p1/4p3/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq - +A26 English Opening: King's English Variation, Closed System, Full Symmetry 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 r1bqk1nr/ppp2pbp/2np2p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQkq - +A27 English Opening: King's English Variation, Three Knights System 1. c4 e5 2. Nc3 Nc6 3. Nf3 c2c4 e7e5 b1c3 b8c6 g1f3 r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - +A28 English Opening: Four Knights System, Nimzowitsch Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e4 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq - +A28 English Opening: King's English Variation, Four Knights Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A28 English Opening: King's English Variation, Four Knights Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5d4 f3d4 f8b4 c1g5 h7h6 g5h4 b4c3 b2c3 c6e5 r1bqk2r/pppp1pp1/5n1p/4n3/2PN3B/2P5/P3PPPP/R2QKB1R w KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Bradley Beach Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 e4 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5e4 r1bqkb1r/pppp1ppp/2n2n2/8/2PPp3/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Flexible Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2NP1N2/PP2PPPP/R1BQKB1R b KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Korchnoi Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. a3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 a2a3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/P1N2N2/1P1PPPPP/R1BQKB1R b KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N1PN2/PP1P1PPP/R1BQKB1R b KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 b4c3 r1bqk2r/pppp1ppp/2n2n2/4p3/2P5/2b1PN2/PPQP1PPP/R1B1KB1R w KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Qf5 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 e8g8 c3d5 f8e8 c2f5 r1bqr1k1/pppp1ppp/2n2n2/3NpQ2/1bP5/4PN2/PP1P1PPP/R1B1KB1R b KQ - +A29 English Opening: King's English Variation, Four Knights Variation, Fianchetto Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 g2g3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2NP1/PP1PPP1P/R1BQKB1R b KQkq - +A30 English Opening: Symmetrical Variation 1. c4 c5 c2c4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A30 English Opening: Symmetrical Variation 1. c4 c5 2. Nf3 c2c4 c7c5 g1f3 rnbqkbnr/pp1ppppp/8/2p5/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A30 English Opening: Symmetrical Variation, Hedgehog Defense 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 g1f3 g8f6 c2c4 c7c5 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 rn1qk2r/pb1pbppp/1p2pn2/2p5/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq - +A30 English Opening: Symmetrical Variation, Napolitano Gambit 1. c4 c5 2. Nf3 Nf6 3. b4 c2c4 c7c5 g1f3 g8f6 b2b4 rnbqkb1r/pp1ppppp/5n2/2p5/1PP5/5N2/P2PPPPP/RNBQKB1R b KQkq - +A30 English Opening: Symmetrical, Hedgehog, Flexible Formation 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7 g1f3 c7c5 c2c4 g8f6 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 d2d4 c5d4 d1d4 d7d6 f1d1 a7a6 b2b3 b8d7 r2qk2r/1b1nbppp/pp1ppn2/8/2PQ4/1PN2NP1/P3PPBP/R1BR2K1 w kq - +A30 English Opening: Wing Gambit 1. c4 c5 2. b4 c2c4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1PP5/8/P2PPPPP/RNBQKBNR b KQkq - +A31 English Opening: Symmetrical Variation, Anti-Benoni Variation 1. d4 Nf6 2. c4 c5 3. Nf3 d2d4 g8f6 c2c4 c7c5 g1f3 rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +A32 English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e6 d2d4 g8f6 c2c4 c7c5 g1f3 c5d4 f3d4 e7e6 rnbqkb1r/pp1p1ppp/4pn2/8/2PN4/8/PP2PPPP/RNBQKB1R w KQkq - +A33 English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 Qb6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6 g2g3 d8b6 r1b1kb1r/pp1p1ppp/1qn1pn2/8/2PN4/2N3P1/PP2PP1P/R1BQKB1R w KQkq - +A33 English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6 r1bqkb1r/pp1p1ppp/2n1pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R w KQkq - +A34 English Opening: Symmetrical Variation, Fianchetto Variation 1. c4 Nf6 2. Nc3 c5 3. g3 c2c4 g8f6 b1c3 c7c5 g2g3 rnbqkb1r/pp1ppppp/5n2/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - +A34 English Opening: Symmetrical Variation, Normal Variation 1. c4 c5 2. Nc3 c2c4 c7c5 b1c3 rnbqkbnr/pp1ppppp/8/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - +A34 English Opening: Symmetrical Variation, Rubinstein Variation 1. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 c2c4 g8f6 b1c3 c7c5 g2g3 d7d5 c4d5 f6d5 f1g2 d5c7 rnbqkb1r/ppn1pppp/8/2p5/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A34 English Opening: Symmetrical Variation, Three Knights Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 g1f3 g8f6 c2c4 c7c5 b1c3 d7d5 c4d5 f6d5 rnbqkb1r/pp2pppp/8/2pn4/8/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A35 English Opening: Symmetrical Variation, Four Knights Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 r1bqkb1r/pp1ppppp/2n2n2/2p5/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A35 English Opening: Symmetrical Variation, Two Knights Variation 1. c4 c5 2. Nc3 Nc6 c2c4 c7c5 b1c3 b8c6 r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A36 English Opening: Symmetrical Variation, Botvinnik System 1. e4 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e2e4 c7c5 c2c4 b8c6 b1c3 g7g6 g2g3 f8g7 f1g2 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq - +A36 English Opening: Symmetrical Variation, Botvinnik System Reversed 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. e3 e5 c2c4 c7c5 b1c3 g7g6 g2g3 f8g7 f1g2 b8c6 e2e3 e7e5 r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N1P1P1/PP1P1PBP/R1BQK1NR w KQkq - +A36 English Opening: Symmetrical Variation, Fianchetto Variation 1. c4 c5 2. Nc3 Nc6 3. g3 c2c4 c7c5 b1c3 b8c6 g2g3 r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - +A36 English Opening: Symmetrical Variation, Symmetrical Variation 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 c2c4 c7c5 g2g3 g7g6 f1g2 f8g7 b1c3 b8c6 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A37 English Opening: Symmetrical Variation, Botvinnik System Reversed 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. g3 g6 5. Bg2 Bg7 g1f3 c7c5 c2c4 b8c6 b1c3 e7e5 g2g3 g7g6 f1g2 f8g7 r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - +A37 English Opening: Symmetrical Variation, Two Knights Line 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R b KQkq - +A38 English Opening: Symmetrical Variation, Double Fianchetto 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6 e1g1 e8g8 b2b3 r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/1PN2NP1/P2PPPBP/R1BQ1RK1 b - - +A38 English Opening: Symmetrical Variation, Duchamp Variation 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. Nc3 Nc6 7. d3 g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 c2c4 c7c5 b1c3 b8c6 d2d3 r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/2NP1NP1/PP2PPBP/R1BQ1RK1 b - - +A38 English Opening: Symmetrical Variation, Full Symmetry Line 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - +A39 English Opening: Symmetrical Variation, Mecking Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d4 r1bq1rk1/pp1pppbp/2n2np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +A40 Australian Defense 1. d4 Na6 d2d4 b8a6 r1bqkbnr/pppppppp/n7/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Benoni Defense: Franco-Sicilian Hybrid 1. d4 e6 2. c4 c5 3. d5 exd5 4. cxd5 d6 5. Nc3 g6 6. e4 Bg7 7. Nf3 Ne7 d2d4 e7e6 c2c4 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 g1f3 g8e7 rnbqk2r/pp2npbp/3p2p1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +A40 Borg Defense: Borg Gambit 1. d4 g5 d2d4 g7g5 rnbqkbnr/pppppp1p/8/6p1/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Colle System: Pterodactyl Variation 1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 Qa5+ d2d4 g7g6 g1f3 f8g7 e2e3 c7c5 f1d3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq - +A40 Colle System: Siroccopteryx Variation 1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 cxd4 5. Nxd4 Qa5+ d2d4 g7g6 g1f3 f8g7 e2e3 c7c5 f1d3 c5d4 f3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/3N4/3BP3/PPP2PPP/RNBQK2R w KQkq - +A40 Dutch Defense: Senechaud Gambit 1. d4 e6 2. Bf4 f5 3. g4 d2d4 e7e6 c1f4 f7f5 g2g4 rnbqkbnr/pppp2pp/4p3/5p2/3P1BP1/8/PPP1PP1P/RN1QKBNR b KQkq - +A40 Dutch Defense: Stonewall Variation, Modern Variation 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 d5 5. O-O Bd6 6. c4 c6 d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 d7d5 e1g1 f8d6 c2c4 c7c6 rnbqk2r/pp4pp/2pbpn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w kq - +A40 English Defense 1. d4 b6 d2d4 b7b6 rnbqkbnr/p1pppppp/1p6/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 English Defense 1. d4 e6 2. c4 b6 d2d4 e7e6 c2c4 b7b6 rnbqkbnr/p1pp1ppp/1p2p3/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A40 English Defense: Blumenfeld-Hiva Gambit 1. d4 b6 2. c4 c5 3. d5 e6 4. e4 b5 5. cxb5 f5 d2d4 b7b6 c2c4 c7c5 d4d5 e7e6 e2e4 b6b5 c4b5 f7f5 rnbqkbnr/p2p2pp/4p3/1PpP1p2/4P3/8/PP3PPP/RNBQKBNR w KQkq - +A40 English Defense: Eastbourne Gambit 1. d4 b6 2. c4 Bb7 3. Nc3 e5 d2d4 b7b6 c2c4 c8b7 b1c3 e7e5 rn1qkbnr/pbpp1ppp/1p6/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A40 English Defense: Hartlaub Gambit Accepted 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6 c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 e4f5 g8f6 rn1qkb1r/pbpp2pp/1p2pn2/5P2/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - +A40 English Defense: Hartlaub Gambit Declined 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. d5 c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 d4d5 rn1qkbnr/pbpp2pp/1p2p3/3P1p2/2P1P3/2N5/PP3PPP/R1BQKBNR b KQkq - +A40 English Defense: Perrin Variation 1. d4 e6 2. c4 b6 3. e4 Bb7 4. Bd3 Nc6 d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f1d3 b8c6 r2qkbnr/pbpp1ppp/1pn1p3/8/2PPP3/3B4/PP3PPP/RNBQK1NR w KQkq - +A40 English Defense: Poli Gambit 1. d4 e6 2. c4 b6 3. e4 Bb7 4. f3 f5 5. exf5 Nh6 d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f2f3 f7f5 e4f5 g8h6 rn1qkb1r/pbpp2pp/1p2p2n/5P2/2PP4/5P2/PP4PP/RNBQKBNR w KQkq - +A40 Englund Gambit 1. d4 e5 d2d4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex Declined 1. d4 e5 2. d5 d2d4 e7e5 d4d5 rnbqkbnr/pppp1ppp/8/3Pp3/8/8/PPP1PPPP/RNBQKBNR b KQkq - +A40 Englund Gambit Complex Declined: Diemer Counterattack 1. d4 e5 2. d5 Bc5 3. e4 Qh4 d2d4 e7e5 d4d5 f8c5 e2e4 d8h4 rnb1k1nr/pppp1ppp/8/2bPp3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex: Englund Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 r1b1kbnr/ppppqppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Complex: Felbecker Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Bc5 d2d4 e7e5 d4e5 b8c6 g1f3 f8c5 r1bqk1nr/pppp1ppp/2n5/2b1P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Complex: Hartlaub-Charlick Gambit 1. d4 e5 2. dxe5 d6 d2d4 e7e5 d4e5 d7d6 rnbqkbnr/ppp2ppp/3p4/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex: Mosquito Gambit 1. d4 e5 2. dxe5 Qh4 d2d4 e7e5 d4e5 d8h4 rnb1kbnr/pppp1ppp/8/4P3/7q/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex: Soller Gambit 1. d4 e5 2. dxe5 f6 d2d4 e7e5 d4e5 f7f6 rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex: Soller Gambit Deferred 1. d4 e5 2. dxe5 Nc6 3. Nf3 f6 d2d4 e7e5 d4e5 b8c6 g1f3 f7f6 r1bqkbnr/pppp2pp/2n2p2/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Complex: Stockholm Variation 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 r1b1kbnr/ppppqppp/2n5/3QP3/8/5N2/PPP1PPPP/RNB1KB1R b KQkq - +A40 Englund Gambit Complex: Zilbermints Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Nge7 d2d4 e7e5 d4e5 b8c6 g1f3 g8e7 r1bqkb1r/ppppnppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Complex: Zilbermints Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 h6 d2d4 e7e5 d4e5 b8c6 g1f3 h7h6 r1bqkbnr/pppp1pp1/2n4p/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Declined: Reversed Alekhine 1. d4 e5 2. Nf3 d2d4 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - +A40 Englund Gambit Declined: Reversed Brooklyn 1. d4 e5 2. Nf3 e4 3. Ng1 d2d4 e7e5 g1f3 e5e4 f3g1 rnbqkbnr/pppp1ppp/8/8/3Pp3/8/PPP1PPPP/RNBQKBNR b KQkq - +A40 Englund Gambit Declined: Reversed Krebs 1. d4 e5 2. Nf3 e4 d2d4 e7e5 g1f3 e5e4 rnbqkbnr/pppp1ppp/8/8/3Pp3/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Declined: Reversed Mokele Mbembe 1. d4 e5 2. Nf3 e4 3. Ne5 d2d4 e7e5 g1f3 e5e4 f3e5 rnbqkbnr/pppp1ppp/8/4N3/3Pp3/8/PPP1PPPP/RNBQKB1R b KQkq - +A40 Horwitz Defense 1. d4 e6 d2d4 e7e6 rnbqkbnr/pppp1ppp/4p3/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Kangaroo Defense 1. d4 e6 2. c4 Bb4+ d2d4 e7e6 c2c4 f8b4 rnbqk1nr/pppp1ppp/4p3/8/1bPP4/8/PP2PPPP/RNBQKBNR w KQkq - +A40 Kangaroo Defense: Keres Defense, Transpositional Variation 1. d4 e6 2. c4 Bb4+ 3. Nc3 d2d4 e7e6 c2c4 f8b4 b1c3 rnbqk1nr/pppp1ppp/4p3/8/1bPP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +A40 Mikenas Defense 1. d4 Nc6 d2d4 b8c6 r1bqkbnr/pppppppp/2n5/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Mikenas Defense: Cannstatter Variation 1. d4 Nc6 2. c4 e5 3. d5 Nd4 d2d4 b8c6 c2c4 e7e5 d4d5 c6d4 r1bqkbnr/pppp1ppp/8/3Pp3/2Pn4/8/PP2PPPP/RNBQKBNR w KQkq - +A40 Mikenas Defense: Lithuanian Variation 1. d4 Nc6 2. c4 e5 3. d5 Nce7 d2d4 b8c6 c2c4 e7e5 d4d5 c6e7 r1bqkbnr/ppppnppp/8/3Pp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A40 Mikenas Defense: Pozarek Gambit 1. d4 Nc6 2. c4 e5 3. dxe5 Nxe5 4. Nc3 Nxc4 d2d4 b8c6 c2c4 e7e5 d4e5 c6e5 b1c3 e5c4 r1bqkbnr/pppp1ppp/8/8/2n5/2N5/PP2PPPP/R1BQKBNR w KQkq - +A40 Modern Defense 1. d4 g6 d2d4 g7g6 rnbqkbnr/pppppp1p/6p1/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Modern Defense: Beefeater Variation 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 f5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 f7f5 rnbqk1nr/pp1pp2p/6p1/2pP1p2/2P5/2P5/P3PPPP/R1BQKBNR w KQkq - +A40 Modern Defense: Lizard Defense, Pirc-Diemer Gambit 1. d4 g6 2. h4 Nf6 3. h5 d2d4 g7g6 h2h4 g8f6 h4h5 rnbqkb1r/pppppp1p/5np1/7P/3P4/8/PPP1PPP1/RNBQKBNR b KQkq - +A40 Montevideo Defense 1. d4 Nc6 2. d5 Nb8 d2d4 b8c6 d4d5 c6b8 rnbqkbnr/pppppppp/8/3P4/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Polish Defense 1. d4 b5 d2d4 b7b5 rnbqkbnr/p1pppppp/8/1p6/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Polish Defense: Spassky Gambit Accepted 1. d4 b5 2. e4 Bb7 3. Bxb5 d2d4 b7b5 e2e4 c8b7 f1b5 rn1qkbnr/pbpppppp/8/1B6/3PP3/8/PPP2PPP/RNBQK1NR b KQkq - +A40 Pterodactyl Defense: Central, Benoni Beefeater Pterodactyl 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 Bxc3+ 6. bxc3 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d7d6 e2e4 g7c3 b2c3 d8a5 rnb1k1nr/pp2pp1p/3p2p1/q1pP4/2P1P3/2P5/P4PPP/R1BQKBNR w KQkq - +A40 Pterodactyl Defense: Central, Benoni Pterodactyl 1. d4 g6 2. c4 Bg7 3. e4 c5 4. d5 Qa5+ d2d4 g7g6 c2c4 f8g7 e2e4 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/2P1P3/8/PP3PPP/RNBQKBNR w KQkq - +A40 Pterodactyl Defense: Fianchetto, Queen Benoni Pterodactyl 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/2P5/2N5/PP2PPPP/R1BQKBNR w KQkq - +A40 Pterodactyl Defense: Fianchetto, Queen Pteranodon 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1pP4/2P5/2P5/P3PPPP/R1BQKBNR w KQkq - +A40 Pterodactyl Defense: Fianchetto, Queen Pterodactyl 1. d4 g6 2. Nf3 Bg7 3. g3 c5 4. Bg2 Qa5+ d2d4 g7g6 g1f3 f8g7 g2g3 c7c5 f1g2 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq - +A40 Pterodactyl Defense: Queen Pterodactyl, Quiet Line 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. e3 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 e2e3 rnbqk1nr/pp1pppbp/6p1/2p5/2PP4/2N1P3/PP3PPP/R1BQKBNR b KQkq - +A40 Queen's Pawn Game 1. d4 d2d4 rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq - +A40 Queen's Pawn Game: Anglo-Slav Opening 1. d4 c6 2. c4 d6 d2d4 c7c6 c2c4 d7d6 rnbqkbnr/pp2pppp/2pp4/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A40 Queen's Pawn Game: Englund Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5 f6 5. exf6 Nxf6 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 f7f6 e5f6 g8f6 r1b1kb1r/ppppq1pp/2n2n2/3Q4/8/5N2/PPP1PPPP/RNB1KB1R w KQkq - +A40 Queen's Pawn Game: London System, Pterodactyl Variation 1. d4 g6 2. Nf3 Bg7 3. Bf4 c5 4. c3 cxd4 5. cxd4 Qa5+ d2d4 g7g6 g1f3 f8g7 c1f4 c7c5 c2c3 c5d4 c3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/3P1B2/5N2/PP2PPPP/RN1QKB1R w KQkq - +A40 Slav Indian: Kudischewitsch Gambit 1. d4 c6 2. Nf3 Nf6 3. c4 b5 d2d4 c7c6 g1f3 g8f6 c2c4 b7b5 rnbqkb1r/p2ppppp/2p2n2/1p6/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +A40 St. George Defense: Polish Variation 1. d4 b5 2. e4 a6 3. Nf3 Bb7 4. Bd3 e6 d2d4 b7b5 e2e4 a7a6 g1f3 c8b7 f1d3 e7e6 rn1qkbnr/1bpp1ppp/p3p3/1p6/3PP3/3B1N2/PPP2PPP/RNBQK2R w KQkq - +A40 Zaire Defense 1. d4 Nc6 2. d5 Nb8 3. e4 Nf6 4. e5 Ng8 d2d4 b8c6 d4d5 c6b8 e2e4 g8f6 e4e5 f6g8 rnbqkbnr/pppppppp/8/3PP3/8/8/PPP2PPP/RNBQKBNR w KQkq - +A40 Zukertort Defense: Kingside Variation 1. d4 g6 2. Nf3 Nh6 d2d4 g7g6 g1f3 g8h6 rnbqkb1r/pppppp1p/6pn/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A41 English Rat: Pounds Gambit 1. d4 d6 2. c4 e5 3. dxe5 Be6 d2d4 d7d6 c2c4 e7e5 d4e5 c8e6 rn1qkbnr/ppp2ppp/3pb3/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A41 King's Pawn Game: Maróczy Defense 1. d4 d6 2. e4 e5 d2d4 d7d6 e2e4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +A41 Modern Defense 1. d4 g6 2. c4 Bg7 3. Nc3 d6 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 rnbqk1nr/ppp1ppbp/3p2p1/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A41 Old Indian Defense 1. d4 d6 2. c4 d2d4 d7d6 c2c4 rnbqkbnr/ppp1pppp/3p4/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - +A41 Queen's Pawn Game 1. d4 d6 d2d4 d7d6 rnbqkbnr/ppp1pppp/3p4/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A41 Rat Defense: English Rat 1. d4 d6 2. c4 e5 d2d4 d7d6 c2c4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A41 Rat Defense: English Rat, Lisbon Gambit 1. d4 d6 2. c4 e5 3. dxe5 Nc6 d2d4 d7d6 c2c4 e7e5 d4e5 b8c6 r1bqkbnr/ppp2ppp/2np4/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A41 Robatsch Defense 1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. e4 Bg4 d2d4 d7d6 g1f3 g7g6 c2c4 f8g7 e2e4 c8g4 rn1qk1nr/ppp1ppbp/3p2p1/8/2PPP1b1/5N2/PP3PPP/RNBQKB1R w KQkq - +A41 Wade Defense 1. d4 d6 2. Nf3 Bg4 d2d4 d7d6 g1f3 c8g4 rn1qkbnr/ppp1pppp/3p4/8/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A41 Zukertort Opening: Wade Defense, Chigorin Plan 1. d4 d6 2. Nf3 Bg4 3. c4 Nd7 4. Qb3 Rb8 d2d4 d7d6 g1f3 c8g4 c2c4 b8d7 d1b3 a8b8 1r1qkbnr/pppnpppp/3p4/8/2PP2b1/1Q3N2/PP2PPPP/RNB1KB1R w KQk - +A42 Modern Defense: Averbakh System 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 rnbqk1nr/ppp1ppbp/3p2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +A42 Modern Defense: Kotov Variation 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 b8c6 r1bqk1nr/ppp1ppbp/2np2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq - +A42 Modern Defense: Randspringer Variation 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 f5 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 f7f5 rnbqk1nr/ppp1p1bp/3p2p1/5p2/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq - +A42 Pterodactyl Defense 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+ 5. Nc3 d6 g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5 b1c3 d7d6 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +A42 Pterodactyl Defense: Central, Bogolubovia 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c5 5. Nge2 Qa5 d2d4 g7g6 c2c4 f8g7 e2e4 d7d6 b1c3 c7c5 g1e2 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N5/PP2NPPP/R1BQKB1R w KQkq - +A43 Benoni Defense: Benoni Gambit Accepted 1. d4 c5 2. dxc5 d2d4 c7c5 d4c5 rnbqkbnr/pp1ppppp/8/2P5/8/8/PPP1PPPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Benoni Gambit, Schlenker Defense 1. d4 c5 2. dxc5 Na6 d2d4 c7c5 d4c5 b8a6 r1bqkbnr/pp1ppppp/n7/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Benoni-Indian Defense 1. d4 c5 2. d5 Nf6 d2d4 c7c5 d4d5 g8f6 rnbqkb1r/pp1ppppp/5n2/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Benoni-Indian Defense, Kingside Move Order 1. d4 Nf6 2. Nf3 c5 3. d5 d2d4 g8f6 g1f3 c7c5 d4d5 rnbqkb1r/pp1ppppp/5n2/2pP4/8/5N2/PPP1PPPP/RNBQKB1R b KQkq - +A43 Benoni Defense: Benoni-Staunton Gambit 1. d4 c5 2. d5 f5 3. e4 d2d4 c7c5 d4d5 f7f5 e2e4 rnbqkbnr/pp1pp1pp/8/2pP1p2/4P3/8/PPP2PPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Cormorant Gambit 1. d4 c5 2. dxc5 b6 d2d4 c7c5 d4c5 b7b6 rnbqkbnr/p2ppppp/1p6/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: French Benoni 1. e4 e6 2. d4 c5 3. d5 e2e4 e7e6 d2d4 c7c5 d4d5 rnbqkbnr/pp1p1ppp/4p3/2pP4/4P3/8/PPP2PPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Hawk Variation 1. d4 Nf6 2. Nf3 c5 3. d5 c4 d2d4 g8f6 g1f3 c7c5 d4d5 c5c4 rnbqkb1r/pp1ppppp/5n2/3P4/2p5/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A43 Benoni Defense: Old Benoni 1. d4 c5 d2d4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Old Benoni 1. d4 c5 2. d5 d2d4 c7c5 d4d5 rnbqkbnr/pp1ppppp/8/2pP4/8/8/PPP1PPPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Old Benoni 1. d4 c5 2. d5 d6 d2d4 c7c5 d4d5 d7d6 rnbqkbnr/pp2pppp/3p4/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Old Benoni, Mujannah Formation 1. d4 c5 2. d5 f5 d2d4 c7c5 d4d5 f7f5 rnbqkbnr/pp1pp1pp/8/2pP1p2/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Old Benoni, Schmid Variation 1. d4 c5 2. d5 d6 3. Nc3 g6 d2d4 c7c5 d4d5 d7d6 b1c3 g7g6 rnbqkbnr/pp2pp1p/3p2p1/2pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A43 Benoni Defense: Snail Variation 1. d4 c5 2. d5 Na6 d2d4 c7c5 d4d5 b8a6 r1bqkbnr/pp1ppppp/n7/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Woozle 1. d4 c5 2. d5 Nf6 3. Nc3 Qa5 d2d4 c7c5 d4d5 g8f6 b1c3 d8a5 rnb1kb1r/pp1ppppp/5n2/q1pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A43 Benoni Defense: Zilbermints-Benoni Gambit 1. d4 c5 2. b4 d2d4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P1P4/8/P1P1PPPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Zilbermints-Benoni Gambit 1. d4 c5 2. Nf3 cxd4 3. b4 d2d4 c7c5 g1f3 c5d4 b2b4 rnbqkbnr/pp1ppppp/8/8/1P1p4/5N2/P1P1PPPP/RNBQKB1R b KQkq - +A43 Benoni Defense: Zilbermints-Benoni Gambit, Tamarkin Countergambit 1. d4 c5 2. Nf3 cxd4 3. b4 e5 d2d4 c7c5 g1f3 c5d4 b2b4 e7e5 rnbqkbnr/pp1p1ppp/8/4p3/1P1p4/5N2/P1P1PPPP/RNBQKB1R w KQkq - +A43 Indian Defense: Pseudo-Benko 1. d4 Nf6 2. Nf3 c5 3. d5 b5 d2d4 g8f6 g1f3 c7c5 d4d5 b7b5 rnbqkb1r/p2ppppp/5n2/1ppP4/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A43 Queen's Pawn Game: Liedmann Gambit 1. d4 c5 2. c4 cxd4 3. e3 d2d4 c7c5 c2c4 c5d4 e2e3 rnbqkbnr/pp1ppppp/8/8/2Pp4/4P3/PP3PPP/RNBQKBNR b KQkq - +A44 Benoni Defense: Old Benoni 1. d4 c5 2. d5 e5 d2d4 c7c5 d4d5 e7e5 rnbqkbnr/pp1p1ppp/8/2pPp3/8/8/PPP1PPPP/RNBQKBNR w KQkq e6 +A44 Benoni Defense: Semi-Benoni 1. d4 c5 2. d5 e5 3. e4 d6 d2d4 c7c5 d4d5 e7e5 e2e4 d7d6 rnbqkbnr/pp3ppp/3p4/2pPp3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +A45 Amazon Attack: Siberian Attack 1. d4 Nf6 2. Nc3 d5 3. Qd3 d2d4 g8f6 b1c3 d7d5 d1d3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2NQ4/PPP1PPPP/R1B1KBNR b KQkq - +A45 Blackmar-Diemer Gambit Declined: O'Kelly Defense 1. d4 Nf6 2. f3 d5 3. e4 dxe4 4. Nc3 c6 d2d4 g8f6 f2f3 d7d5 e2e4 d5e4 b1c3 c7c6 rnbqkb1r/pp2pppp/2p2n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +A45 Blackmar-Diemer Gambit Declined: Weinsbach Declination 1. d4 Nf6 2. Nc3 d5 3. f3 e6 4. e4 dxe4 d2d4 g8f6 b1c3 d7d5 f2f3 e7e6 e2e4 d5e4 rnbqkb1r/ppp2ppp/4pn2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +A45 Bronstein Gambit 1. d4 Nf6 2. g4 d2d4 g8f6 g2g4 rnbqkb1r/pppppppp/5n2/8/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq - +A45 Canard Opening 1. d4 Nf6 2. f4 d2d4 g8f6 f2f4 rnbqkb1r/pppppppp/5n2/8/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq - +A45 Indian Defense 1. d4 Nf6 d2d4 g8f6 rnbqkb1r/pppppppp/5n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A45 Indian Defense: Gedult Attack, Gedult Attack 1. d4 Nf6 2. f3 d5 3. g4 d2d4 g8f6 f2f3 d7d5 g2g4 rnbqkb1r/ppp1pppp/5n2/3p4/3P2P1/5P2/PPP1P2P/RNBQKBNR b KQkq - +A45 Indian Defense: Gibbins-Wiedenhagen Gambit Accepted 1. d4 Nf6 2. g4 Nxg4 d2d4 g8f6 g2g4 f6g4 rnbqkb1r/pppppppp/8/8/3P2n1/8/PPP1PP1P/RNBQKBNR w KQkq - +A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Maltese Falcon 1. d4 Nf6 2. g4 Nxg4 3. f3 Nf6 4. e4 d2d4 g8f6 g2g4 f6g4 f2f3 g4f6 e2e4 rnbqkb1r/pppppppp/5n2/8/3PP3/5P2/PPP4P/RNBQKBNR b KQkq - +A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Oshima Defense 1. d4 Nf6 2. g4 e5 d2d4 g8f6 g2g4 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq - +A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Stummer Gambit 1. d4 Nf6 2. g4 Nxg4 3. e4 d6 4. Be2 Nf6 5. Nc3 d2d4 g8f6 g2g4 f6g4 e2e4 d7d6 f1e2 g4f6 b1c3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP1BP1P/R1BQK1NR b KQkq - +A45 Indian Defense: Lazard Gambit 1. d4 Nf6 2. Nd2 e5 d2d4 g8f6 b1d2 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P4/8/PPPNPPPP/R1BQKBNR w KQkq - +A45 Indian Defense: Maddigan Gambit 1. d4 Nf6 2. Nc3 e5 d2d4 g8f6 b1c3 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A45 Indian Defense: Omega Gambit 1. d4 Nf6 2. e4 d2d4 g8f6 e2e4 rnbqkb1r/pppppppp/5n2/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +A45 Indian Defense: Omega Gambit, Arafat Gambit 1. d4 Nf6 2. e4 Nxe4 3. Bd3 Nf6 4. Bg5 d2d4 g8f6 e2e4 f6e4 f1d3 e4f6 c1g5 rnbqkb1r/pppppppp/5n2/6B1/3P4/3B4/PPP2PPP/RN1QK1NR b KQkq - +A45 Indian Defense: Paleface Attack, Blackmar-Diemer Gambit Deferred 1. d4 Nf6 2. f3 d5 3. e4 d2d4 g8f6 f2f3 d7d5 e2e4 rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - +A45 Indian Defense: Pawn Push Variation 1. d4 Nf6 2. d5 d2d4 g8f6 d4d5 rnbqkb1r/pppppppp/5n2/3P4/8/8/PPP1PPPP/RNBQKBNR b KQkq - +A45 Indian Defense: Reversed Chigorin Defense 1. d4 Nf6 2. Nc3 c5 d2d4 g8f6 b1c3 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A45 Indian Defense: Tartakower Attack 1. d4 Nf6 2. g3 d2d4 g8f6 g2g3 rnbqkb1r/pppppppp/5n2/8/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq - +A45 Paleface Attack 1. d4 Nf6 2. f3 d2d4 g8f6 f2f3 rnbqkb1r/pppppppp/5n2/8/3P4/5P2/PPP1P1PP/RNBQKBNR b KQkq - +A45 Queen's Pawn Game: Chigorin Variation 1. d4 Nf6 2. Nc3 d5 d2d4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A45 Queen's Pawn Game: Veresov, Richter Attack 1. d4 Nf6 2. f3 d5 3. Nc3 d2d4 g8f6 f2f3 d7d5 b1c3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N2P2/PPP1P1PP/R1BQKBNR b KQkq - +A45 Trompowsky Attack 1. d4 Nf6 2. Bg5 d2d4 g8f6 c1g5 rnbqkb1r/pppppppp/5n2/6B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq - +A45 Trompowsky Attack: Borg Variation 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 g5 d2d4 g8f6 c1g5 f6e4 g5f4 g7g5 rnbqkb1r/pppppp1p/8/6p1/3PnB2/8/PPP1PPPP/RN1QKBNR w KQkq - +A45 Trompowsky Attack: Classical Defense 1. d4 Nf6 2. Bg5 e6 d2d4 g8f6 c1g5 e7e6 rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/8/PPP1PPPP/RN1QKBNR w KQkq - +A45 Trompowsky Attack: Classical Defense, Big Center Variation 1. d4 Nf6 2. Bg5 e6 3. e4 d2d4 g8f6 c1g5 e7e6 e2e4 rnbqkb1r/pppp1ppp/4pn2/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq - +A45 Trompowsky Attack: Edge Variation 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d2d4 g8f6 c1g5 f6e4 g5h4 rnbqkb1r/pppppppp/8/8/3Pn2B/8/PPP1PPPP/RN1QKBNR b KQkq - +A45 Trompowsky Attack: Edge Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 c6 4. Nd2 Qa5 5. c3 Nxd2 6. Qxd2 d5 7. e4 d2d4 g8f6 c1g5 f6e4 g5h4 c7c6 b1d2 d8a5 c2c3 e4d2 d1d2 d7d5 e2e4 rnb1kb1r/pp2pppp/2p5/q2p4/3PP2B/2P5/PP1Q1PPP/R3KBNR b KQkq - +A45 Trompowsky Attack: Edge Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d5 4. f3 Nf6 5. Nc3 Bf5 6. e4 d2d4 g8f6 c1g5 f6e4 g5h4 d7d5 f2f3 e4f6 b1c3 c8f5 e2e4 rn1qkb1r/ppp1pppp/5n2/3p1b2/3PP2B/2N2P2/PPP3PP/R2QKBNR b KQkq - +A45 Trompowsky Attack: Poisoned Pawn Variation 1. d4 Nf6 2. Bg5 c5 3. d5 Qb6 4. Nc3 d2d4 g8f6 c1g5 c7c5 d4d5 d8b6 b1c3 rnb1kb1r/pp1ppppp/1q3n2/2pP2B1/8/2N5/PPP1PPPP/R2QKBNR b KQkq - +A45 Trompowsky Attack: Raptor Variation 1. d4 Nf6 2. Bg5 Ne4 3. h4 d2d4 g8f6 c1g5 f6e4 h2h4 rnbqkb1r/pppppppp/8/6B1/3Pn2P/8/PPP1PPP1/RN1QKBNR b KQkq - +A45 Trompowsky Attack: Raptor Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. h4 Nxg5 4. hxg5 e5 d2d4 g8f6 c1g5 f6e4 h2h4 e4g5 h4g5 e7e5 rnbqkb1r/pppp1ppp/8/4p1P1/3P4/8/PPP1PPP1/RN1QKBNR w KQkq - +A46 Döry Defense 1. d4 Nf6 2. Nf3 Ne4 d2d4 g8f6 g1f3 f6e4 rnbqkb1r/pppppppp/8/8/3Pn3/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: Czech-Indian 1. d4 Nf6 2. Nf3 c6 d2d4 g8f6 g1f3 c7c6 rnbqkb1r/pp1ppppp/2p2n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: Knights Variation 1. d4 Nf6 2. Nf3 d2d4 g8f6 g1f3 rnbqkb1r/pppppppp/5n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - +A46 Indian Defense: Knights Variation, Alburt-Miles Variation 1. d4 Nf6 2. Nf3 a6 d2d4 g8f6 g1f3 a7a6 rnbqkb1r/1ppppppp/p4n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: London System 1. d4 Nf6 2. Nf3 e6 3. Bf4 d2d4 g8f6 g1f3 e7e6 c1f4 rnbqkb1r/pppp1ppp/4pn2/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - +A46 Indian Defense: Polish Variation 1. d4 Nf6 2. Nf3 b5 d2d4 g8f6 g1f3 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: Spielmann-Indian 1. d4 Nf6 2. Nf3 c5 d2d4 g8f6 g1f3 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: Wade-Tartakower Defense 1. d4 Nf6 2. Nf3 d6 d2d4 g8f6 g1f3 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Old Indian Defense: Czech Variation 1. d4 Nf6 2. Nf3 c6 3. c4 d6 d2d4 g8f6 g1f3 c7c6 c2c4 d7d6 rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +A46 Old Indian Defense: Tartakower-Indian 1. d4 Nf6 2. Nf3 d6 3. c4 Bg4 d2d4 g8f6 g1f3 d7d6 c2c4 c8g4 rn1qkb1r/ppp1pppp/3p1n2/8/2PP2b1/5N2/PP2PPPP/RNBQKB1R w KQkq - +A46 Queen's Pawn Game: Torre Attack, Breyer Variation 1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 c5 5. c3 Qb6 d2d4 g8f6 g1f3 e7e6 c1g5 d7d5 e2e3 c7c5 c2c3 d8b6 rnb1kb1r/pp3ppp/1q2pn2/2pp2B1/3P4/2P1PN2/PP3PPP/RN1QKB1R w KQkq - +A46 Queen's Pawn Game: Veresov Attack, Classical Defense 1. d4 Nf6 2. Nf3 e6 3. Nc3 d5 4. Bg5 d2d4 g8f6 g1f3 e7e6 b1c3 d7d5 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/3P4/2N2N2/PPP1PPPP/R2QKB1R b KQkq - +A46 Torre Attack 1. d4 Nf6 2. Nf3 e6 3. Bg5 d2d4 g8f6 g1f3 e7e6 c1g5 rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - +A46 Torre Attack: Classical Defense, Nimzowitsch Variation 1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 d2d4 g8f6 g1f3 e7e6 c1g5 h7h6 rnbqkb1r/pppp1pp1/4pn1p/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R w KQkq - +A46 Torre Attack: Classical Defense, Petrosian Gambit 1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 b6 5. d5 d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e3 b7b6 d4d5 rnbqkb1r/p2p1ppp/1p2pn2/2pP2B1/8/4PN2/PPP2PPP/RN1QKB1R b KQkq - +A46 Torre Attack: Wagner Gambit 1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e4 d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e4 rnbqkb1r/pp1p1ppp/4pn2/2p3B1/3PP3/5N2/PPP2PPP/RN1QKB1R b KQkq - +A46 Yusupov-Rubinstein System 1. d4 Nf6 2. Nf3 e6 3. e3 d2d4 g8f6 g1f3 e7e6 e2e3 rnbqkb1r/pppp1ppp/4pn2/8/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq - +A47 Indian Defense: Schnepper Gambit 1. d4 Nf6 2. Nf3 b6 3. c3 e5 d2d4 g8f6 g1f3 b7b6 c2c3 e7e5 rnbqkb1r/p1pp1ppp/1p3n2/4p3/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq - +A47 Marienbad System 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq - +A47 Queen's Indian Defense 1. d4 Nf6 2. Nf3 b6 d2d4 g8f6 g1f3 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A47 Queen's Indian Defense: Marienbad System, Berg Variation 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c4 cxd4 6. Qxd4 d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 c2c4 c5d4 d1d4 rn1qkb1r/pb1ppppp/1p3n2/8/2PQ4/5NP1/PP2PPBP/RNB1K2R b KQkq - +A48 East Indian Defense 1. d4 Nf6 2. Nf3 g6 d2d4 g8f6 g1f3 g7g6 rnbqkb1r/pppppp1p/5np1/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A48 London System 1. d4 Nf6 2. Nf3 g6 3. Bf4 d2d4 g8f6 g1f3 g7g6 c1f4 rnbqkb1r/pppppp1p/5np1/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - +A48 Queen's Pawn Game: Barry Attack, Grünfeld Variation 1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Be2 d2d4 g8f6 g1f3 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 f1e2 rnbq1rk1/ppp1ppbp/5np1/3p4/3P1B2/2N1PN2/PPP1BPPP/R2QK2R b KQ - +A48 Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 O-O d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 d7d5 e2e3 e8g8 rnbq1rk1/ppp1ppbp/5np1/3p2B1/3P4/4PN2/PPPN1PPP/R2QKB1R w KQ - +A48 Torre Attack 1. d4 Nf6 2. Nf3 g6 3. Bg5 d2d4 g8f6 g1f3 g7g6 c1g5 rnbqkb1r/pppppp1p/5np1/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - +A48 Torre Attack: Fianchetto Defense, Euwe Variation 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 c5 d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 c7c5 rnbqk2r/pp1pppbp/5np1/2p3B1/3P4/5N2/PPPNPPPP/R2QKB1R w KQkq - +A49 Indian Defense: Przepiorka Variation 1. d4 Nf6 2. Nf3 g6 3. g3 d2d4 g8f6 g1f3 g7g6 g2g3 rnbqkb1r/pppppp1p/5np1/8/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq - +A49 King's Indian Defense: Fianchetto Variation, Benjamin Defense 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 c6 7. Nc3 Qb6 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d6 c2c4 c7c6 b1c3 d8b6 rnb2rk1/pp2ppbp/1qpp1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A50 Indian Defense: Medusa Gambit 1. d4 Nf6 2. c4 g5 d2d4 g8f6 c2c4 g7g5 rnbqkb1r/pppppp1p/5n2/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A50 Indian Defense: Normal Variation 1. d4 Nf6 2. c4 d2d4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - +A50 Indian Defense: Pyrenees Gambit 1. d4 Nf6 2. c4 b5 d2d4 g8f6 c2c4 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A50 Mexican Defense 1. d4 Nf6 2. c4 Nc6 d2d4 g8f6 c2c4 b8c6 r1bqkb1r/pppppppp/2n2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A50 Mexican Defense: Horsefly Gambit 1. d4 Nf6 2. c4 Nc6 3. d5 Ne5 4. f4 d2d4 g8f6 c2c4 b8c6 d4d5 c6e5 f2f4 r1bqkb1r/pppppppp/5n2/3Pn3/2P2P2/8/PP2P1PP/RNBQKBNR b KQkq - +A50 Queen's Indian Accelerated 1. d4 Nf6 2. c4 b6 d2d4 g8f6 c2c4 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A50 Slav Indian 1. d4 Nf6 2. c4 c6 d2d4 g8f6 c2c4 c7c6 rnbqkb1r/pp1ppppp/2p2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A51 Indian Defense: Budapest Defense 1. d4 Nf6 2. c4 e5 d2d4 g8f6 c2c4 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A51 Indian Defense: Budapest Defense, Fajarowicz Defense, Bonsdorf Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. a3 b6 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 a2a3 b7b6 rnbqkb1r/p1pp1ppp/1p6/4P3/2P1n3/P7/1P2PPPP/RNBQKBNR w KQkq - +A51 Indian Defense: Budapest Defense, Fajarowicz Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq - +A51 Indian Defense: Budapest Defense, Fajarowicz-Steiner Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. Qc2 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 d1c2 rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PPQ1PPPP/RNB1KBNR b KQkq - +A52 Indian Defense: Budapest Defense 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 rnbqkb1r/pppp1ppp/8/4P3/2P3n1/8/PP2PPPP/RNBQKBNR w KQkq - +A52 Indian Defense: Budapest Defense, Adler Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 g1f3 rnbqkb1r/pppp1ppp/8/4P3/2P3n1/5N2/PP2PPPP/RNBQKB1R b KQkq - +A52 Indian Defense: Budapest Defense, Alekhine Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 rnbqkb1r/pppp1ppp/8/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR b KQkq - +A52 Indian Defense: Budapest Defense, Alekhine Variation, Abonyi Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 g4e5 f2f4 e5c6 rnbqkb1r/pppp1ppp/2n5/8/2P1PP2/8/PP4PP/RNBQKBNR w KQkq - +A52 Indian Defense: Budapest Defense, Alekhine Variation, Tartakower Defense 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d6 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 d7d6 rnbqkb1r/ppp2ppp/3p4/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR w KQkq - +A52 Indian Defense: Budapest Defense, Rubinstein Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 c1f4 rnbqkb1r/pppp1ppp/8/4P3/2P2Bn1/8/PP2PPPP/RN1QKBNR b KQkq - +A53 Old Indian Defense 1. d4 Nf6 2. c4 d6 d2d4 g8f6 c2c4 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A53 Old Indian Defense: Aged Gibbon Gambit 1. d4 Nf6 2. c4 d6 3. g4 d2d4 g8f6 c2c4 d7d6 g2g4 rnbqkb1r/ppp1pppp/3p1n2/8/2PP2P1/8/PP2PP1P/RNBQKBNR b KQkq - +A53 Old Indian Defense: Czech Variation 1. d4 Nf6 2. c4 d6 3. Nc3 c6 d2d4 g8f6 c2c4 d7d6 b1c3 c7c6 rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A53 Old Indian Defense: Janowski Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A53 Old Indian Defense: Janowski Variation, Fianchetto Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g1f3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +A53 Old Indian Defense: Janowski Variation, Fianchetto Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. g3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g2g3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq - +A53 Old Indian Defense: Janowski Variation, Grinberg Gambit 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. e4 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 e2e4 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +A53 Old Indian Defense: Janowski Variation, Main Line 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. f3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 f2f3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq - +A54 Old Indian Defense: Dus-Khotimirsky Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. e3 Nbd7 5. Bd3 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 e2e3 b8d7 f1d3 r1bqkb1r/pppn1ppp/3p1n2/4p3/2PP4/2NBP3/PP3PPP/R1BQK1NR b KQkq - +A54 Old Indian Defense: Two Knights Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 g1f3 rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +A54 Old Indian Defense: Ukrainian Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A55 Old Indian Defense: Normal Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 b8d7 e2e4 e7e5 g1f3 r1bqkb1r/pppn1ppp/3p1n2/4p3/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +A56 Benoni Defense 1. d4 Nf6 2. c4 c5 d2d4 g8f6 c2c4 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A56 Benoni Defense: Czech Benoni Defense 1. d4 Nf6 2. c4 c5 3. d5 e5 d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 rnbqkb1r/pp1p1ppp/5n2/2pPp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq e6 +A56 Benoni Defense: Hromádka System 1. d4 Nf6 2. c4 c5 3. d5 d6 d2d4 g8f6 c2c4 c7c5 d4d5 d7d6 rnbqkb1r/pp2pppp/3p1n2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A56 Benoni Defense: King's Indian System 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 g6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 b1c3 d7d6 e2e4 g7g6 rnbqkb1r/pp3p1p/3p1np1/2pPp3/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - +A56 Benoni Defense: Weenink Variation 1. d4 Nf6 2. c4 c5 3. dxc5 e6 d2d4 g8f6 c2c4 c7c5 d4c5 e7e6 rnbqkb1r/pp1p1ppp/4pn2/2P5/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A56 Grünfeld Defense: Three Knights Variation, Burille Variation, Reversed Tarrasch 1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nc3 Bg7 5. Nf3 O-O 6. Be2 cxd4 7. exd4 d5 8. O-O Nc6 d2d4 g8f6 c2c4 c7c5 e2e3 g7g6 b1c3 f8g7 g1f3 e8g8 f1e2 c5d4 e3d4 d7d5 e1g1 b8c6 r1bq1rk1/pp2ppbp/2n2np1/3p4/2PP4/2N2N2/PP2BPPP/R1BQ1RK1 w - - +A56 Vulture Defense 1. d4 Nf6 2. c4 c5 3. d5 Ne4 d2d4 g8f6 c2c4 c7c5 d4d5 f6e4 rnbqkb1r/pp1ppppp/8/2pP4/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq - +A57 Benko Gambit 1. d4 Nf6 2. c4 c5 3. d5 b5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A57 Benko Gambit Accepted 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 rnbqkb1r/3ppppp/p4n2/1PpP4/8/8/PP2PPPP/RNBQKBNR w KQkq - +A57 Benko Gambit Accepted: Dlugy Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. f3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 f2f3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/5P2/PP2P1PP/RNBQKBNR b KQkq - +A57 Benko Gambit Accepted: Modern Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 e2e3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/4P3/PP3PPP/RNBQKBNR b KQkq - +A57 Benko Gambit Accepted: Pawn Return Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5b6 rnbqkb1r/3ppppp/pP3n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq - +A57 Benko Gambit Declined: Bishop Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Bg5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c1g5 rnbqkb1r/p2ppppp/5n2/1ppP2B1/2P5/8/PP2PPPP/RN1QKBNR b KQkq - +A57 Benko Gambit Declined: Hjørring Countergambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. e4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 e2e4 rnbqkb1r/p2ppppp/5n2/1ppP4/2P1P3/8/PP3PPP/RNBQKBNR b KQkq - +A57 Benko Gambit Declined: Main Line 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g1f3 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R b KQkq - +A57 Benko Gambit Declined: Pseudo-Sämisch 1. d4 Nf6 2. c4 c5 3. d5 b5 4. f3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 f2f3 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5P2/PP2P1PP/RNBQKBNR b KQkq - +A57 Benko Gambit Declined: Quiet Line 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 b1d2 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP1NPPPP/R1BQKBNR b KQkq - +A57 Benko Gambit Declined: Sosonko Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 a2a4 rnbqkb1r/p2ppppp/5n2/1ppP4/P1P5/8/1P2PPPP/RNBQKBNR b KQkq - +A57 Benko Gambit: Mutkin Countergambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. g4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g2g4 rnbqkb1r/p2ppppp/5n2/1ppP4/2P3P1/8/PP2PP1P/RNBQKBNR b KQkq - +A57 Benko Gambit: Nescafe Frappe Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Bc4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 d7d6 f1c4 rnbqkb1r/4pppp/3p1n2/1NpP4/1pB1P3/8/PP3PPP/R1BQK1NR b KQkq - +A57 Benko Gambit: Zaitsev System 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/2N5/PP2PPPP/R1BQKBNR b KQkq - +A57 Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 rnbqkb1r/3ppppp/5n2/1NpP4/1p2P3/8/PP3PPP/R1BQKBNR b KQkq - +A58 Benko Gambit Accepted: Central Storming Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. f4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 f2f4 rn1qkb1r/3ppp1p/b4np1/2pP4/5P2/2N5/PP2P1PP/R1BQKBNR b KQkq - +A58 Benko Gambit Accepted: Fianchetto Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. g3 d6 8. Bg2 Bg7 9. Nf3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g2g3 d7d6 f1g2 f8g7 g1f3 rn1qk2r/4ppbp/b2p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R b KQkq - +A58 Benko Gambit Accepted: Fully Accepted Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 rnbqkb1r/3ppppp/P4n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq - +A58 Benko Gambit: Fianchetto Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 g2g3 rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +A58 Benko Gambit: Nd2 Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 f3d2 rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq - +A59 Benko Gambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. g3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g2g3 rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N3P1/PP3P1P/R1BQ1KNR b kq - +A59 Benko Gambit Accepted: King Walk Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 d6 8. e4 Bxf1 9. Kxf1 Bg7 10. g3 O-O 11. Kg2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g1f3 d7d6 e2e4 a6f1 e1f1 f8g7 g2g3 e8g8 f1g2 rn1q1rk1/4ppbp/3p1np1/2pP4/4P3/2N2NP1/PP3PKP/R1BQ3R b - - +A59 Benko Gambit Accepted: Yugoslav 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4 rn1qkb1r/4pppp/b2p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq - +A59 Benko Gambit Accepted: Yugoslav 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. Nge2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g1e2 rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N5/PP2NPPP/R1BQ1K1R b kq - +A60 Benoni Defense: Modern Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 rnbqkb1r/pp1p1ppp/4pn2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A60 Benoni Defense: Modern Variation, Snake Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 Bd6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 f8d6 rnbqk2r/pp1p1ppp/3b1n2/2pP4/8/2N5/PP2PPPP/R1BQKBNR w KQkq - +A61 Benoni Defense 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +A61 Benoni Defense: Fianchetto Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 g2g3 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +A61 Benoni Defense: Knight's Tour Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f3d2 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq - +A61 Benoni Defense: Uhlmann Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 c1g5 rnbqkb1r/pp3p1p/3p1np1/2pP2B1/8/2N2N2/PP2PPPP/R2QKB1R b KQkq - +A62 Benoni Defense: Fianchetto Variation 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R w KQ - +A63 Benoni Defense: Fianchetto Variation, Hastings Defense 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Nbd7 d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 b8d7 r1bq1rk1/pp1n1pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A64 Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Nbd7 11. Nd2 Re8 d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 a7a6 a2a4 b8d7 f3d2 f8e8 r1bqr1k1/1p1n1pbp/p2p1np1/2pP4/P7/2N3P1/1P1NPPBP/R1BQ1RK1 w - - +A65 Benoni Defense: King's Pawn Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 rnbqkb1r/pp3ppp/3p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq - +A66 Benoni Defense: Mikenas Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. e5 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 e4e5 rnbqk2r/pp3pbp/3p1np1/2pPP3/5P2/2N5/PP4PP/R1BQKBNR b KQkq - +A66 Benoni Defense: Pawn Storm Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 rnbqkb1r/pp3p1p/3p1np1/2pP4/4PP2/2N5/PP4PP/R1BQKBNR b KQkq - +A67 Benoni Defense: Taimanov Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 f1b5 rnbqk2r/pp3pbp/3p1np1/1BpP4/4PP2/2N5/PP4PP/R1BQK1NR b KQkq - +A68 Benoni Defense: Four Pawns Attack 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 g1f3 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP4PP/R1BQKB1R w KQ - +A69 Benoni Defense: Four Pawns Attack, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. cxd5 Re8 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 e6d5 c4d5 f8e8 rnbqr1k1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP2B1PP/R1BQK2R w KQ - +A70 Benoni Defense: Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 rnbqkb1r/pp3p1p/3p1np1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +A70 Benoni Defense: Classical Variation, New York Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. h3 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 h2h3 rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N1P/PP3PP1/R1BQKB1R b KQkq - +A70 Benoni Defense: Classical Variation, Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R b KQkq - +A71 Benoni Defense: Classical Variation, Averbakh-Grivas Attack 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 c1g5 rnbqk2r/pp3pbp/3p1np1/2pP2B1/4P3/2N2N2/PP3PPP/R2QKB1R b KQkq - +A72 Benoni Defense: Classical 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R w KQ - +A73 Benoni Defense: Classical Variation, Main Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 b - - +A74 Benoni Defense: Classical Variation, Full Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O a6 10. a4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 rnbq1rk1/1p3pbp/p2p1np1/2pP4/P3P3/2N2N2/1P2BPPP/R1BQ1RK1 b - - +A75 Benoni Defense: Classical Variation, Argentine Counterattack 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O a6 10. a4 Bg4 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 c8g4 rn1q1rk1/1p3pbp/p2p1np1/2pP4/P3P1b1/2N2N2/1P2BPPP/R1BQ1RK1 w - - +A76 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +A77 Benoni Defense: Classical Variation, Czerniak Defense, Tal Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 b - - +A78 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 w - - +A79 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 11. f3 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 f2f3 r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N2P2/PP1NB1PP/R1BQ1RK1 b - - +A80 Blackmar-Diemer Gambit: Netherlands Variation 1. d4 f5 2. Nc3 d5 3. e4 dxe4 d2d4 f7f5 b1c3 d7d5 e2e4 d5e4 rnbqkbnr/ppp1p1pp/8/5p2/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - +A80 Dutch Defense 1. d4 f5 d2d4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A80 Dutch Defense: Alapin Variation 1. d4 f5 2. Qd3 d2d4 f7f5 d1d3 rnbqkbnr/ppppp1pp/8/5p2/3P4/3Q4/PPP1PPPP/RNB1KBNR b KQkq - +A80 Dutch Defense: Hevendehl Gambit 1. d4 f5 2. g4 e5 d2d4 f7f5 g2g4 e7e5 rnbqkbnr/pppp2pp/8/4pp2/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq - +A80 Dutch Defense: Hopton Attack 1. d4 f5 2. Bg5 d2d4 f7f5 c1g5 rnbqkbnr/ppppp1pp/8/5pB1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq - +A80 Dutch Defense: Janzen-Korchnoi Gambit 1. d4 f5 2. h3 Nf6 3. g4 d2d4 f7f5 h2h3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/7P/PPP1PP2/RNBQKBNR b KQkq - +A80 Dutch Defense: Kingfisher Gambit 1. d4 f5 2. Nc3 d5 3. e4 d2d4 f7f5 b1c3 d7d5 e2e4 rnbqkbnr/ppp1p1pp/8/3p1p2/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +A80 Dutch Defense: Korchnoi Attack 1. d4 f5 2. h3 d2d4 f7f5 h2h3 rnbqkbnr/ppppp1pp/8/5p2/3P4/7P/PPP1PPP1/RNBQKBNR b KQkq - +A80 Dutch Defense: Krejcik Gambit 1. d4 f5 2. g4 d2d4 f7f5 g2g4 rnbqkbnr/ppppp1pp/8/5p2/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq - +A80 Dutch Defense: Krejcik Gambit, Tate Gambit 1. d4 f5 2. g4 fxg4 3. e4 d5 4. Nc3 d2d4 f7f5 g2g4 f5g4 e2e4 d7d5 b1c3 rnbqkbnr/ppp1p1pp/8/3p4/3PP1p1/2N5/PPP2P1P/R1BQKBNR b KQkq - +A80 Dutch Defense: Manhattan Gambit, Anti-Classical Line 1. d4 f5 2. Qd3 e6 3. g4 d2d4 f7f5 d1d3 e7e6 g2g4 rnbqkbnr/pppp2pp/4p3/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - +A80 Dutch Defense: Manhattan Gambit, Anti-Leningrad 1. d4 f5 2. Qd3 g6 3. g4 d2d4 f7f5 d1d3 g7g6 g2g4 rnbqkbnr/ppppp2p/6p1/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - +A80 Dutch Defense: Manhattan Gambit, Anti-Modern 1. d4 f5 2. Qd3 d6 3. g4 d2d4 f7f5 d1d3 d7d6 g2g4 rnbqkbnr/ppp1p1pp/3p4/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - +A80 Dutch Defense: Manhattan Gambit, Anti-Stonewall 1. d4 f5 2. Qd3 d5 3. g4 d2d4 f7f5 d1d3 d7d5 g2g4 rnbqkbnr/ppp1p1pp/8/3p1p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - +A80 Dutch Defense: Omega-Isis Gambit 1. d4 f5 2. Nf3 e5 d2d4 f7f5 g1f3 e7e5 rnbqkbnr/pppp2pp/8/4pp2/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A80 Dutch Defense: Raphael Variation 1. d4 f5 2. Nc3 d2d4 f7f5 b1c3 rnbqkbnr/ppppp1pp/8/5p2/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq - +A80 Dutch Defense: Spielmann Gambit 1. d4 f5 2. Nc3 Nf6 3. g4 d2d4 f7f5 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/2N5/PPP1PP1P/R1BQKBNR b KQkq - +A80 Queen's Pawn Game: Veresov Attack, Dutch System 1. d4 f5 2. Nc3 d5 d2d4 f7f5 b1c3 d7d5 rnbqkbnr/ppp1p1pp/8/3p1p2/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A81 Dutch Defense: Blackburne Variation 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 d2d4 f7f5 g2g3 g8f6 f1g2 e7e6 g1h3 rnbqkb1r/pppp2pp/4pn2/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq - +A81 Dutch Defense: Fianchetto Attack 1. d4 f5 2. g3 d2d4 f7f5 g2g3 rnbqkbnr/ppppp1pp/8/5p2/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq - +A81 Dutch Defense: Leningrad Variation, Karlsbad Variation 1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nh3 d2d4 f7f5 g2g3 g7g6 f1g2 f8g7 g1h3 rnbqk1nr/ppppp1bp/6p1/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq - +A81 Dutch Defense: Leningrad, Basman System 1. d4 f5 2. g3 c6 3. Bg2 g6 4. Nf3 Bg7 5. O-O Nh6 d2d4 f7f5 g2g3 c7c6 f1g2 g7g6 g1f3 f8g7 e1g1 g8h6 rnbqk2r/pp1pp1bp/2p3pn/5p2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq - +A81 Dutch Defense: Semi-Leningrad Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 rnbqkb1r/ppppp2p/5np1/5p2/3P4/6P1/PPP1PPBP/RNBQK1NR w KQkq - +A82 Dutch Defense: Blackmar's Second Gambit 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. f3 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 f2f3 rnbqkb1r/ppppp1pp/5n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR b KQkq - +A82 Dutch Defense: Staunton Gambit 1. d4 f5 2. e4 d2d4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +A82 Dutch Defense: Staunton Gambit Accepted 1. d4 f5 2. e4 fxe4 d2d4 f7f5 e2e4 f5e4 rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq - +A82 Dutch Defense: Staunton Gambit, American Attack 1. d4 f5 2. e4 fxe4 3. Nd2 d2d4 f7f5 e2e4 f5e4 b1d2 rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPPN1PPP/R1BQKBNR b KQkq - +A82 Dutch Defense: Staunton Gambit, Tartakower Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/8/3Pp1P1/2N5/PPP2P1P/R1BQKBNR b KQkq - +A82 French Defense: Franco-Hiva Gambit 1. d4 f5 2. e4 e6 d2d4 f7f5 e2e4 e7e6 rnbqkbnr/pppp2pp/4p3/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +A82 Rat Defense: Balogh Defense 1. e4 d6 2. d4 f5 e2e4 d7d6 d2d4 f7f5 rnbqkbnr/ppp1p1pp/3p4/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +A83 Dutch Defense: Staunton Gambit 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 rnbqkb1r/ppppp1pp/5n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR b KQkq - +A83 Dutch Defense: Staunton Gambit, Alekhine Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. h4 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 h2h4 rnbqkb1r/ppppp2p/5np1/6B1/3Pp2P/2N5/PPP2PP1/R2QKBNR b KQkq - +A83 Dutch Defense: Staunton Gambit, Chigorin Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 c6 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 c7c6 rnbqkb1r/pp1pp1pp/2p2n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - +A83 Dutch Defense: Staunton Gambit, Lasker Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. f3 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 f2f3 rnbqkb1r/ppppp2p/5np1/6B1/3Pp3/2N2P2/PPP3PP/R2QKBNR b KQkq - +A83 Dutch Defense: Staunton Gambit, Nimzowitsch Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 b6 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 b7b6 rnbqkb1r/p1ppp1pp/1p3n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - +A84 Dutch Defense 1. d4 f5 2. c4 d2d4 f7f5 c2c4 rnbqkbnr/ppppp1pp/8/5p2/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - +A84 Dutch Defense: Bladel Variation 1. d4 f5 2. c4 g6 3. Nc3 Nh6 d2d4 f7f5 c2c4 g7g6 b1c3 g8h6 rnbqkb1r/ppppp2p/6pn/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A84 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 d2d4 e7e6 c2c4 f7f5 rnbqkbnr/pppp2pp/4p3/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A84 Dutch Defense: Normal Variation 1. d4 f5 2. c4 Nf6 d2d4 f7f5 c2c4 g8f6 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A84 Dutch Defense: Rubinstein Variation 1. d4 e6 2. c4 f5 3. Nc3 d2d4 e7e6 c2c4 f7f5 b1c3 rnbqkbnr/pppp2pp/4p3/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +A84 Horwitz Defense: Dutch Defense, Bellon Gambit 1. d4 e6 2. c4 f5 3. e4 d2d4 e7e6 c2c4 f7f5 e2e4 rnbqkbnr/pppp2pp/4p3/5p2/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - +A85 Dutch Defense: Queen's Knight Variation 1. d4 f5 2. c4 Nf6 3. Nc3 d2d4 f7f5 c2c4 g8f6 b1c3 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +A86 Dutch Defense: Fianchetto Variation 1. d4 f5 2. c4 Nf6 3. g3 d2d4 f7f5 c2c4 g8f6 g2g3 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq - +A86 Dutch Defense: Hort-Antoshin System 1. c4 f5 2. g3 Nf6 3. Bg2 d6 4. Nc3 c6 5. d4 Qc7 c2c4 f7f5 g2g3 g8f6 f1g2 d7d6 b1c3 c7c6 d2d4 d8c7 rnb1kb1r/ppq1p1pp/2pp1n2/5p2/2PP4/2N3P1/PP2PPBP/R1BQK1NR w KQkq - +A86 Dutch Defense: Leningrad Variation 1. d4 f5 2. c4 Nf6 3. g3 g6 d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 rnbqkb1r/ppppp2p/5np1/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - +A87 Dutch Defense: Leningrad Variation 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 f1g2 f8g7 g1f3 rnbqk2r/ppppp1bp/5np1/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq - +A88 Dutch Defense: Leningrad Variation, Warsaw Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 c6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 c7c6 rnbq1rk1/pp2p1bp/2pp1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A89 Dutch Defense: Leningrad Variation, Matulovic Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 b8c6 r1bq1rk1/ppp1p1bp/2np1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A90 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 rnbqkb1r/pppp2pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq - +A90 Dutch Defense: Nimzo-Dutch Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4 rnbqk2r/pppp2pp/4pn2/5p2/1bPP4/6P1/PP2PPBP/RNBQK1NR w KQkq - +A90 Dutch Defense: Nimzo-Dutch Variation, Alekhine Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ 5. Bd2 Be7 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4 c1d2 b4e7 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP1BPPBP/RN1QK1NR w KQkq - +A91 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq - +A91 Dutch Defense: Classical Variation, Blackburne Attack 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nh3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1h3 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6PN/PP2PPBP/RNBQK2R b KQkq - +A92 Dutch Defense: Alekhine Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O Ne4 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 f6e4 rnbq1rk1/ppppb1pp/4p3/5p2/2PPn3/5NP1/PP2PPBP/RNBQ1RK1 w - - +A92 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 rnbq1rk1/ppppb1pp/4pn2/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R w KQ - +A92 Dutch Defense: Stonewall 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. c4 d5 7. Nc3 d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d5 b1c3 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +A92 Dutch Defense: Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +A93 Dutch Defense: Classical Variation, Stonewall Variation, Botvinnik Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. b3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b - - +A94 Dutch Defense: Classical Variation, Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. b3 c6 8. Ba3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3 c7c6 c1a3 rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/BP3NP1/P3PPBP/RN1Q1RK1 b - - +A95 Dutch Defense: Classical Variation, Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 Be7 6. O-O O-O 7. Nc3 c6 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 d7d5 g1f3 f8e7 e1g1 e8g8 b1c3 c7c6 rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A95 Dutch Defense: Stonewall, Chekhover Variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 c6 8. Qc2 Qe8 9. Bg5 d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b1c3 c7c6 d1c2 d8e8 c1g5 rnb1qrk1/pp2b1pp/2p1pn2/3p1pB1/2PP4/2N2NP1/PPQ1PPBP/R4RK1 b - - +A96 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 rnbq1rk1/ppp1b1pp/3ppn2/5p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +A96 Dutch Defense: Classical Variation, Buenos Aires Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 a5 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 a7a5 rnbq1rk1/1pp1b1pp/3ppn2/p4p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A96 Dutch Defense: Classical Variation, Huisl Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Ne4 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 f6e4 rnbq1rk1/ppp1b1pp/3pp3/5p2/2PPn3/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A97 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A97 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Winter Variation 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. Re1 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 f1e1 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQR1K1 b - - +A98 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev-Lisitsyn Line 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. Qc2 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 d1c2 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PPQ1PPBP/R1B2RK1 b - - +A99 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Modern Main Line 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. b3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8 b2b3 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/1PN2NP1/P3PPBP/R1BQ1RK1 b - - +B00 Barnes Defense 1. e4 f6 e2e4 f7f6 rnbqkbnr/ppppp1pp/5p2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Borg Defense 1. e4 g5 e2e4 g7g5 rnbqkbnr/pppppp1p/8/6p1/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Borg Defense: Borg Gambit 1. e4 g5 2. d4 Bg7 e2e4 g7g5 d2d4 f8g7 rnbqk1nr/ppppppbp/8/6p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Borg Defense: Langhorst Gambit 1. e4 g5 2. d4 e6 3. c3 c5 4. dxc5 b6 e2e4 g7g5 d2d4 e7e6 c2c3 c7c5 d4c5 b7b6 rnbqkbnr/p2p1p1p/1p2p3/2P3p1/4P3/2P5/PP3PPP/RNBQKBNR w KQkq - +B00 Borg Defense: Troon Gambit 1. e4 g5 2. d4 h6 3. h4 g4 e2e4 g7g5 d2d4 h7h6 h2h4 g5g4 rnbqkbnr/pppppp2/7p/8/3PP1pP/8/PPP2PP1/RNBQKBNR w KQkq - +B00 Borg Opening: Zilbermints Gambit 1. e4 g5 2. d4 e5 e2e4 g7g5 d2d4 e7e5 rnbqkbnr/pppp1p1p/8/4p1p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Carr Defense 1. e4 h6 e2e4 h7h6 rnbqkbnr/ppppppp1/7p/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Carr Defense: Zilbermints Gambit 1. e4 h6 2. d4 e5 e2e4 h7h6 d2d4 e7e5 rnbqkbnr/pppp1pp1/7p/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Duras Gambit 1. e4 f5 e2e4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Fried Fox Defense 1. e4 f6 2. d4 Kf7 e2e4 f7f6 d2d4 e8f7 rnbq1bnr/pppppkpp/5p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQ - +B00 Goldsmith Defense 1. e4 h5 e2e4 h7h5 rnbqkbnr/ppppppp1/8/7p/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Goldsmith Defense: Picklepuss Defense 1. e4 h5 2. d4 Nf6 e2e4 h7h5 d2d4 g8f6 rnbqkb1r/ppppppp1/5n2/7p/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Guatemala Defense 1. e4 b6 2. d4 Ba6 e2e4 b7b6 d2d4 c8a6 rn1qkbnr/p1pppppp/bp6/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Hippopotamus Defense 1. e4 Nh6 e2e4 g8h6 rnbqkb1r/pppppppp/7n/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Hippopotamus Defense 1. e4 Nh6 2. d4 g6 3. c4 f6 e2e4 g8h6 d2d4 g7g6 c2c4 f7f6 rnbqkb1r/ppppp2p/5ppn/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - +B00 King's Pawn 1. e4 e2e4 rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - +B00 King's Pawn Game: Nimzowitsch Defense 1. e4 Nc6 2. d4 e2e4 b8c6 d2d4 r1bqkbnr/pppppppp/2n5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +B00 King's Pawn Game: Nimzowitsch Defense, Wheeler Gambit 1. e4 Nc6 2. b4 Nxb4 3. c3 Nc6 4. d4 e2e4 b8c6 b2b4 c6b4 c2c3 b4c6 d2d4 r1bqkbnr/pppppppp/2n5/8/3PP3/2P5/P4PPP/RNBQKBNR b KQkq - +B00 Lemming Defense 1. e4 Na6 e2e4 b8a6 r1bqkbnr/pppppppp/n7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Lion Defense: Lion's Jaw 1. e4 d6 2. d4 Nf6 3. f3 e2e4 d7d6 d2d4 g8f6 f2f3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - +B00 Nimzowitsch Defense 1. e4 Nc6 e2e4 b8c6 r1bqkbnr/pppppppp/2n5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Breyer Variation 1. e4 Nc6 2. Nc3 Nf6 3. d4 e5 e2e4 b8c6 b1c3 g8f6 d2d4 e7e5 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Declined Variation 1. e4 Nc6 2. Nf3 e2e4 b8c6 g1f3 r1bqkbnr/pppppppp/2n5/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: El Columpio Defense 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 r1bqkb1r/pppppppp/2n5/4P3/6n1/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: El Columpio Defense, El Columpio Gambit 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. e6 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5e6 r1bqkb1r/ppp1pppp/2npP2n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: El Columpio Defense, Exchange Variation 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. exd6 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5d6 r1bqkb1r/ppp1pppp/2nP3n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: El Columpio Defense, Pin Variation 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. Bb5 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 f1b5 r1bqkb1r/ppp1pppp/2np3n/1B2P3/3P4/5N1P/PPP2PP1/RNBQK2R b KQkq - +B00 Nimzowitsch Defense: Franco-Hiva Gambit 1. e4 Nc6 2. d4 e6 3. Nc3 f5 4. exf5 Nf6 e2e4 b8c6 d2d4 e7e6 b1c3 f7f5 e4f5 g8f6 r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Franco-Hiva Gambit 1. e4 Nc6 2. d4 e6 3. Nf3 f5 4. exf5 Nf6 e2e4 b8c6 d2d4 e7e6 g1f3 f7f5 e4f5 g8f6 r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: Franco-Nimzowitsch Variation 1. e4 Nc6 2. Nf3 e6 e2e4 b8c6 g1f3 e7e6 r1bqkbnr/pppp1ppp/2n1p3/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: French Connection 1. e4 Nc6 2. Nc3 e6 e2e4 b8c6 b1c3 e7e6 r1bqkbnr/pppp1ppp/2n1p3/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Hornung Gambit 1. e4 Nc6 2. d4 d5 3. Be3 e2e4 b8c6 d2d4 d7d5 c1e3 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq - +B00 Nimzowitsch Defense: Kennedy Variation 1. e4 Nc6 2. d4 e5 e2e4 b8c6 d2d4 e7e5 r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Bielefelder Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 Bc5 e2e4 b8c6 d2d4 e7e5 d4e5 f8c5 r1bqk1nr/pppp1ppp/2n5/2b1P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Hammer Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 f6 e2e4 b8c6 d2d4 e7e5 d4e5 f7f6 r1bqkbnr/pppp2pp/2n2p2/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Herford Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 Qh4 e2e4 b8c6 d2d4 e7e5 d4e5 d8h4 r1b1kbnr/pppp1ppp/2n5/4P3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Keres Attack 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nc3 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 b1c3 r1bqkbnr/pppp1ppp/8/4n3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation 1. e4 Nc6 2. d4 e5 3. d5 e2e4 b8c6 d2d4 e7e5 d4d5 r1bqkbnr/pppp1ppp/2n5/3Pp3/4P3/8/PPP2PPP/RNBQKBNR b KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Main Line 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Ng6 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5g6 r1bqkbnr/pppp1ppp/6n1/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Paulsen Attack 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nf3 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 g1f3 r1bqkbnr/pppp1ppp/8/4n3/4P3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Riemann Defense 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Nc6 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5c6 r1bqkbnr/pppp1ppp/2n5/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, de Smet Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 d6 e2e4 b8c6 d2d4 e7e5 d4e5 d7d6 r1bqkbnr/ppp2ppp/2np4/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Lean Variation 1. e4 Nc6 2. Nf3 f5 e2e4 b8c6 g1f3 f7f5 r1bqkbnr/ppppp1pp/2n5/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: Lean Variation, Colorado Counter Accepted 1. e4 Nc6 2. Nf3 f5 3. exf5 e2e4 b8c6 g1f3 f7f5 e4f5 r1bqkbnr/ppppp1pp/2n5/5P2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: Mikenas Variation 1. e4 Nc6 2. d4 d6 e2e4 b8c6 d2d4 d7d6 r1bqkbnr/ppp1pppp/2np4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Neo-Mongoloid Defense 1. e4 Nc6 2. d4 f6 e2e4 b8c6 d2d4 f7f6 r1bqkbnr/ppppp1pp/2n2p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Pirc Connection 1. e4 Nc6 2. Nc3 g6 e2e4 b8c6 b1c3 g7g6 r1bqkbnr/pppppp1p/2n3p1/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Pseudo-Spanish Variation 1. e4 Nc6 2. Bb5 e2e4 b8c6 f1b5 r1bqkbnr/pppppppp/2n5/1B6/4P3/8/PPPP1PPP/RNBQK1NR b KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation 1. e4 Nc6 2. d4 d5 e2e4 b8c6 d2d4 d7d5 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Aachen Gambit 1. e4 Nc6 2. d4 d5 3. exd5 Nb4 e2e4 b8c6 d2d4 d7d5 e4d5 c6b4 r1bqkbnr/ppp1pppp/8/3P4/1n1P4/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Advance Variation 1. e4 Nc6 2. d4 d5 3. e5 e2e4 b8c6 d2d4 d7d5 e4e5 r1bqkbnr/ppp1pppp/2n5/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation 1. e4 Nc6 2. d4 d5 3. Nc3 e2e4 b8c6 d2d4 d7d5 b1c3 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Brandics Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 a6 e2e4 b8c6 d2d4 d7d5 b1c3 a7a6 r1bqkbnr/1pp1pppp/p1n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Erben Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 g6 e2e4 b8c6 d2d4 d7d5 b1c3 g7g6 r1bqkbnr/ppp1pp1p/2n3p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Heinola-Deppe Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 e5 e2e4 b8c6 d2d4 d7d5 b1c3 e7e5 r1bqkbnr/ppp2ppp/2n5/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Nimzowitsch Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Ne5 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6e5 r1bqkbnr/ppp1pppp/8/3Pn3/4p3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Richter Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Nb8 5. f3 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6b8 f2f3 rnbqkbnr/ppp1pppp/8/3P4/4p3/2N2P2/PPP3PP/R1BQKBNR b KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Vehre Variation 1. e4 Nc6 2. d4 d5 3. Nc3 Nf6 e2e4 b8c6 d2d4 d7d5 b1c3 g8f6 r1bqkb1r/ppp1pppp/2n2n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Exchange Variation 1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 r1b1kbnr/ppp1pppp/2n5/3q4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Exchange Variation, Marshall Gambit 1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nc3 e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 b1c3 r1b1kbnr/ppp1pppp/2n5/3q4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +B00 Nimzowitsch Defense: Wheeler Gambit 1. e4 Nc6 2. b4 e2e4 b8c6 b2b4 r1bqkbnr/pppppppp/2n5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B00 Nimzowitsch Defense: Williams Variation 1. e4 Nc6 2. Nf3 d6 e2e4 b8c6 g1f3 d7d6 r1bqkbnr/ppp1pppp/2np4/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: Woodchuck Variation 1. e4 Nc6 2. d4 a6 e2e4 b8c6 d2d4 a7a6 r1bqkbnr/1ppppppp/p1n5/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Owen Defense 1. e4 b6 e2e4 b7b6 rnbqkbnr/p1pppppp/1p6/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Owen Defense: Hekili-Loa Gambit 1. e4 b6 2. d4 c5 3. dxc5 Nc6 e2e4 b7b6 d2d4 c7c5 d4c5 b8c6 r1bqkbnr/p2ppppp/1pn5/2P5/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Owen Defense: Matovinsky Gambit 1. e4 b6 2. d4 Bb7 3. Bd3 f5 4. exf5 Bxg2 5. Qh5+ g6 e2e4 b7b6 d2d4 c8b7 f1d3 f7f5 e4f5 b7g2 d1h5 g7g6 rn1qkbnr/p1ppp2p/1p4p1/5P1Q/3P4/3B4/PPP2PbP/RNB1K1NR w KQkq - +B00 Owen Defense: Naselwaus Gambit 1. e4 b6 2. d4 Bb7 3. Bg5 e2e4 b7b6 d2d4 c8b7 c1g5 rn1qkbnr/pbpppppp/1p6/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq - +B00 Owen Defense: Smith Gambit 1. e4 b6 2. d4 Bb7 3. Nf3 e2e4 b7b6 d2d4 c8b7 g1f3 rn1qkbnr/pbpppppp/1p6/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B00 Owen Defense: Unicorn Variation 1. e4 f6 2. d4 b6 3. c4 Bb7 e2e4 f7f6 d2d4 b7b6 c2c4 c8b7 rn1qkbnr/pbppp1pp/1p3p2/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - +B00 Owen Defense: Wind Gambit 1. e4 b6 2. d4 Bb7 3. f3 e5 e2e4 b7b6 d2d4 c8b7 f2f3 e7e5 rn1qkbnr/pbpp1ppp/1p6/4p3/3PP3/5P2/PPP3PP/RNBQKBNR w KQkq - +B00 Pirc Defense 1. e4 d6 e2e4 d7d6 rnbqkbnr/ppp1pppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Pirc Defense 1. e4 d6 2. d4 e2e4 d7d6 d2d4 rnbqkbnr/ppp1pppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +B00 Pirc Defense 1. e4 d6 2. d4 Nf6 e2e4 d7d6 d2d4 g8f6 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Pirc Defense: Roscher Gambit 1. e4 d6 2. d4 Nf6 3. Nf3 e2e4 d7d6 d2d4 g8f6 g1f3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B00 Rat Defense: Antal Defense 1. e4 d6 2. d4 Nd7 e2e4 d7d6 d2d4 b8d7 r1bqkbnr/pppnpppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Rat Defense: Fuller Gambit 1. e4 d6 2. f4 d5 3. exd5 Nf6 e2e4 d7d6 f2f4 d6d5 e4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +B00 Rat Defense: Harmonist 1. e4 d6 2. f4 e2e4 d7d6 f2f4 rnbqkbnr/ppp1pppp/3p4/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +B00 Rat Defense: Petruccioli Attack 1. e4 d6 2. h4 e2e4 d7d6 h2h4 rnbqkbnr/ppp1pppp/3p4/8/4P2P/8/PPPP1PP1/RNBQKBNR b KQkq - +B00 Rat Defense: Spike Attack 1. e4 d6 2. g4 e2e4 d7d6 g2g4 rnbqkbnr/ppp1pppp/3p4/8/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq - +B00 St. George Defense 1. e4 a6 e2e4 a7a6 rnbqkbnr/1ppppppp/p7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 St. George Defense: San Jorge Variation 1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 d6 5. O-O g6 6. c3 Bg7 e2e4 a7a6 d2d4 b7b5 g1f3 c8b7 f1d3 d7d6 e1g1 g7g6 c2c3 f8g7 rn1qk1nr/1bp1ppbp/p2p2p1/1p6/3PP3/2PB1N2/PP3PPP/RNBQ1RK1 w kq - +B00 St. George Defense: Zilbermints Gambit 1. e4 a6 2. d4 e5 e2e4 a7a6 d2d4 e7e5 rnbqkbnr/1ppp1ppp/p7/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Van Geet Opening: Berlin Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 r1bqkbnr/ppp1pppp/2n5/3P4/4p3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B00 Ware Defense 1. e4 a5 e2e4 a7a5 rnbqkbnr/1ppppppp/8/p7/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Ware Defense: Snagglepuss Defense 1. e4 a5 2. d4 Nc6 e2e4 a7a5 d2d4 b8c6 r1bqkbnr/1ppppppp/2n5/p7/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Zukertort Defense: Sicilian Knight Variation 1. e4 Na6 2. Nf3 c5 e2e4 b8a6 g1f3 c7c5 r1bqkbnr/pp1ppppp/n7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B01 Scandinavian Defense 1. e4 d5 e2e4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense 1. e4 d5 2. b3 e2e4 d7d5 b2b3 rnbqkbnr/ppp1pppp/8/3p4/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +B01 Scandinavian Defense: Anderssen Counterattack 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Anderssen Counterattack, Collijn Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 Bg4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 c8g4 rn2kbnr/ppp2ppp/8/q3p3/3P2b1/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B01 Scandinavian Defense: Anderssen Counterattack, Goteborg System 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B01 Scandinavian Defense: Anderssen Counterattack, Orthodox Attack 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Nc6 6. Nf3 Bb4 7. Bd2 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 d4e5 b8c6 g1f3 f8b4 c1d2 r1b1k1nr/ppp2ppp/2n5/q3P3/1b6/2N2N2/PPPB1PPP/R2QKB1R b KQkq - +B01 Scandinavian Defense: Blackburne Gambit 1. e4 d5 2. exd5 c6 3. dxc6 Nxc6 e2e4 d7d5 e4d5 c7c6 d5c6 b8c6 r1bqkbnr/pp2pppp/2n5/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Blackburne-Kloosterboer Gambit 1. e4 d5 2. exd5 c6 e2e4 d7d5 e4d5 c7c6 rnbqkbnr/pp2pppp/2p5/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Boehnke Gambit 1. e4 d5 2. exd5 e5 3. dxe6 Bxe6 e2e4 d7d5 e4d5 e7e5 d5e6 c8e6 rn1qkbnr/ppp2ppp/4b3/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Bronstein Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 g1f3 a7a6 rnb1kb1r/1pp1pppp/p2q1n2/8/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B01 Scandinavian Defense: Classical Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 rn2kb1r/ppp1pppp/5n2/q4b2/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B01 Scandinavian Defense: Grünfeld Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Ne5 c6 7. g4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 f3e5 c7c6 g2g4 rn2kb1r/pp2pppp/2p2n2/q3Nb2/3P2P1/2N5/PPP2P1P/R1BQKB1R b KQkq - +B01 Scandinavian Defense: Gubinsky-Melts Defense 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 rnb1kbnr/ppp1pppp/3q4/8/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Icelandic-Palme Gambit 1. e4 d5 2. exd5 Nf6 3. c4 e6 e2e4 d7d5 e4d5 g8f6 c2c4 e7e6 rnbqkb1r/ppp2ppp/4pn2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Kiel Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 c2c4 d5b4 rnbqkb1r/ppp1pppp/8/8/1nPP4/8/PP3PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Kloosterboer Gambit 1. e4 d5 2. exd5 c6 3. dxc6 e5 e2e4 d7d5 e4d5 c7c6 d5c6 e7e5 rnbqkbnr/pp3ppp/2P5/4p3/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Kádas Gambit 1. e4 d5 2. exd5 Nf6 3. d4 c6 4. dxc6 e5 e2e4 d7d5 e4d5 g8f6 d2d4 c7c6 d5c6 e7e5 rnbqkb1r/pp3ppp/2P2n2/4p3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Lasker Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8g4 h2h3 rn2kb1r/ppp1pppp/5n2/q7/3P2b1/2N2N1P/PPP2PP1/R1BQKB1R b KQkq - +B01 Scandinavian Defense: Main Line 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 rnb1kbnr/ppp1pppp/8/q7/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Main Line, Leonhardt Gambit 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 b2b4 rnb1kbnr/ppp1pppp/8/q7/1P6/2N5/P1PP1PPP/R1BQKBNR b KQkq - +B01 Scandinavian Defense: Main Line, Mieses Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 rnb1kb1r/ppp1pppp/5n2/q7/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Marshall Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 rnbqkb1r/ppp1pppp/8/3n4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Mieses-Kotroc Variation 1. e4 d5 2. exd5 Qxd5 e2e4 d7d5 e4d5 d8d5 rnb1kbnr/ppp1pppp/8/3q4/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Modern Variation 1. e4 d5 2. exd5 Nf6 e2e4 d7d5 e4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Modern Variation 1. e4 d5 2. exd5 Nf6 3. d4 e2e4 d7d5 e4d5 g8f6 d2d4 rnbqkb1r/ppp1pppp/5n2/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B01 Scandinavian Defense: Modern Variation, Gipslis Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 c8g4 rn1qkb1r/ppp1pppp/8/3n4/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq - +B01 Scandinavian Defense: Modern Variation, Wing Gambit 1. e4 d5 2. exd5 Nf6 3. d4 g6 4. c4 b5 e2e4 d7d5 e4d5 g8f6 d2d4 g7g6 c2c4 b7b5 rnbqkb1r/p1p1pp1p/5np1/1p1P4/2PP4/8/PP3PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Panov Transfer 1. e4 d5 2. exd5 Nf6 3. c4 c6 e2e4 d7d5 e4d5 g8f6 c2c4 c7c6 rnbqkb1r/pp2pppp/2p2n2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Portuguese Variation 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 e2e4 d7d5 e4d5 g8f6 d2d4 c8g4 rn1qkb1r/ppp1pppp/5n2/3P4/3P2b1/8/PPP2PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Portuguese Variation, Portuguese Gambit 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Bb5+ Nbd7 5. f3 Bf5 e2e4 d7d5 e4d5 g8f6 d2d4 c8g4 f1b5 b8d7 f2f3 g4f5 r2qkb1r/pppnpppp/5n2/1B1P1b2/3P4/5P2/PPP3PP/RNBQK1NR w KQkq - +B01 Scandinavian Defense: Richter Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 g6 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 g7g6 rnbqkb1r/ppp1pp1p/6p1/3n4/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B01 Scandinavian Defense: Richter Variation 1. e4 d5 2. exd5 Nf6 3. d4 g6 e2e4 d7d5 e4d5 g8f6 d2d4 g7g6 rnbqkb1r/ppp1pp1p/5np1/3P4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Schiller-Pytel Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 c6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 c7c6 rnb1kbnr/pp2pppp/2pq4/8/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Schiller-Pytel Variation, Modern Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 c6 6. Nge2 Bf5 7. Bf4 Qb4 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 f1c4 c7c6 g1e2 c8f5 c1f4 d6b4 rn2kb1r/pp2pppp/2p2n2/5b2/1qBP1B2/2N5/PPP1NPPP/R2QK2R w KQkq - +B01 Scandinavian Defense: Zilbermints Gambit 1. e4 d5 2. b4 e2e4 d7d5 b2b4 rnbqkbnr/ppp1pppp/8/3p4/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B01 Van Geet Opening: Grünfeld Defense 1. e4 d5 2. Nc3 dxe4 3. Nxe4 e5 e2e4 d7d5 b1c3 d5e4 c3e4 e7e5 rnbqkbnr/ppp2ppp/8/4p3/4N3/8/PPPP1PPP/R1BQKBNR w KQkq - +B02 Alekhine Defense 1. e4 Nf6 e2e4 g8f6 rnbqkb1r/pppppppp/5n2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Brooklyn Variation 1. e4 Nf6 2. e5 Ng8 e2e4 g8f6 e4e5 f6g8 rnbqkbnr/pppppppp/8/4P3/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Brooklyn Variation, Everglades Variation 1. e4 Nf6 2. e5 Ng8 3. d4 f5 e2e4 g8f6 e4e5 f6g8 d2d4 f7f5 rnbqkbnr/ppppp1pp/8/4Pp2/3P4/8/PPP2PPP/RNBQKBNR w KQkq f6 +B02 Alekhine Defense: Buckley Attack 1. e4 Nf6 2. e5 Nd5 3. Na3 e2e4 g8f6 e4e5 f6d5 b1a3 rnbqkb1r/pppppppp/8/3nP3/8/N7/PPPP1PPP/R1BQKBNR b KQkq - +B02 Alekhine Defense: Hunt Variation, Lasker Simul Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 rnbqkb1r/pppp1ppp/4p3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR b KQkq - +B02 Alekhine Defense: Hunt Variation, Matsukevich Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 d6 7. Bg5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 b1c3 d5c3 d2c3 d7d6 c1g5 rnbqkb1r/ppp1pppp/3p4/2P1P1B1/8/2P5/PP3PPP/R2QKBNR b KQkq - +B02 Alekhine Defense: Hunt Variation, Mikenas Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 7. Nxd5 exd5 8. Bxd5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6 c3d5 e6d5 c4d5 rnbqkb1r/ppp2ppp/3p4/2PBP3/8/8/PP1P1PPP/R1BQK1NR b KQkq - +B02 Alekhine Defense: Kmoch Variation 1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3 e2e4 g8f6 e4e5 f6d5 f1c4 d5b6 c4b3 c7c5 d2d3 rnbqkb1r/pp1ppppp/1n6/2p1P3/8/1B1P4/PPP2PPP/RNBQK1NR b KQkq - +B02 Alekhine Defense: Krejcik Variation 1. e4 Nf6 2. Bc4 e2e4 g8f6 f1c4 rnbqkb1r/pppppppp/5n2/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - +B02 Alekhine Defense: Krejcik Variation, Krejcik Gambit 1. e4 Nf6 2. Bc4 Nxe4 3. Bxf7+ e2e4 g8f6 f1c4 f6e4 c4f7 rnbqkb1r/pppppBpp/8/8/4n3/8/PPPP1PPP/RNBQK1NR b KQkq - +B02 Alekhine Defense: Maróczy Variation 1. e4 Nf6 2. d3 e2e4 g8f6 d2d3 rnbqkb1r/pppppppp/5n2/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - +B02 Alekhine Defense: Mokele Mbembe 1. e4 Nf6 2. e5 Ne4 e2e4 g8f6 e4e5 f6e4 rnbqkb1r/pppppppp/8/4P3/4n3/8/PPPP1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Mokele Mbembe, Modern Line 1. e4 Nf6 2. e5 Ne4 3. d4 f6 e2e4 g8f6 e4e5 f6e4 d2d4 f7f6 rnbqkb1r/ppppp1pp/5p2/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Mokele Mbembe, Vavra Defense 1. e4 Nf6 2. e5 Ne4 3. d4 e6 e2e4 g8f6 e4e5 f6e4 d2d4 e7e6 rnbqkb1r/pppp1ppp/4p3/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Normal Variation 1. e4 Nf6 2. e5 Nd5 e2e4 g8f6 e4e5 f6d5 rnbqkb1r/pppppppp/8/3nP3/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Scandinavian Variation 1. e4 Nf6 2. Nc3 d5 e2e4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B02 Alekhine Defense: Scandinavian Variation, Geschev Gambit 1. e4 Nf6 2. Nc3 d5 3. exd5 c6 e2e4 g8f6 b1c3 d7d5 e4d5 c7c6 rnbqkb1r/pp2pppp/2p2n2/3P4/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B02 Alekhine Defense: Scandinavian Variation, Myers Gambit 1. e4 Nf6 2. Nc3 d5 3. d3 dxe4 4. Bg5 e2e4 g8f6 b1c3 d7d5 d2d3 d5e4 c1g5 rnbqkb1r/ppp1pppp/5n2/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq - +B02 Alekhine Defense: Spielmann Gambit 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. e6 e2e4 g8f6 b1c3 d7d5 e4e5 f6d7 e5e6 rnbqkb1r/pppnpppp/4P3/3p4/8/2N5/PPPP1PPP/R1BQKBNR b KQkq - +B02 Alekhine Defense: Steiner Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 b2b3 rnbqkb1r/pppppppp/1n6/4P3/2P5/1P6/P2P1PPP/RNBQKBNR b KQkq - +B02 Alekhine Defense: Sämisch Attack 1. e4 Nf6 2. e5 Nd5 3. Nc3 e2e4 g8f6 e4e5 f6d5 b1c3 rnbqkb1r/pppppppp/8/3nP3/8/2N5/PPPP1PPP/R1BQKBNR b KQkq - +B02 Alekhine Defense: The Squirrel 1. e4 Nf6 2. e5 Nd5 3. c4 Nf4 e2e4 g8f6 e4e5 f6d5 c2c4 d5f4 rnbqkb1r/pppppppp/8/4P3/2P2n2/8/PP1P1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Two Pawn Attack 1. e4 Nf6 2. e5 Nd5 3. c4 e2e4 g8f6 e4e5 f6d5 c2c4 rnbqkb1r/pppppppp/8/3nP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq - +B02 Alekhine Defense: Two Pawn Attack, Lasker Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 rnbqkb1r/pppppppp/1n6/2P1P3/8/8/PP1P1PPP/RNBQKBNR b KQkq - +B02 Alekhine Defense: Two Pawns Attack, Mikenas Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6 rnbqkb1r/ppp2ppp/3pp3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR w KQkq - +B02 Alekhine Defense: Welling Variation 1. e4 Nf6 2. e5 Nd5 3. b3 e2e4 g8f6 e4e5 f6d5 b2b3 rnbqkb1r/pppppppp/8/3nP3/8/1P6/P1PP1PPP/RNBQKBNR b KQkq - +B02 English Opening: Achilles-Omega Gambit 1. e4 Nf6 2. c4 e2e4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +B02 King's Pawn Game: Clam Variation, Radisch Gambit 1. e4 Nf6 2. d3 e5 3. f4 Bc5 e2e4 g8f6 d2d3 e7e5 f2f4 f8c5 rnbqk2r/pppp1ppp/5n2/2b1p3/4PP2/3P4/PPP3PP/RNBQKBNR w KQkq - +B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 e2e4 g8f6 e4e5 f6d5 d2d4 rnbqkb1r/pppppppp/8/3nP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 d6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 rnbqkb1r/ppp1pppp/3p4/3nP3/2PP4/8/PP3PPP/RNBQKBNR b KQkq - +B03 Alekhine Defense: Balogh Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 f1c4 rnbqkb1r/ppp1pppp/3p4/3nP3/2BP4/8/PPP2PPP/RNBQK1NR b KQkq - +B03 Alekhine Defense: Exchange Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 rnbqkb1r/ppp1pppp/1n1P4/8/2PP4/8/PP3PPP/RNBQKBNR b KQkq - +B03 Alekhine Defense: Exchange Variation, Karpov Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. h3 Bg7 8. Nf3 O-O 9. Be2 Nc6 10. O-O Bf5 11. Bf4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 c7d6 b1c3 g7g6 h2h3 f8g7 g1f3 e8g8 f1e2 b8c6 e1g1 c8f5 c1f4 r2q1rk1/pp2ppbp/1nnp2p1/5b2/2PP1B2/2N2N1P/PP2BPP1/R2Q1RK1 b - - +B03 Alekhine Defense: Four Pawns Attack 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 rnbqkb1r/ppp1pppp/1n1p4/4P3/2PP1P2/8/PP4PP/RNBQKBNR b KQkq - +B03 Alekhine Defense: Four Pawns Attack, Cambridge Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g5 rnbqkb1r/ppp1pp1p/1n1p4/4P1p1/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - +B03 Alekhine Defense: Four Pawns Attack, Fianchetto Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g6 rnbqkb1r/ppp1pp1p/1n1p2p1/4P3/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - +B03 Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Nf3 Bg4 8. e6 fxe6 9. c5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 g1f3 c8g4 e5e6 f7e6 c4c5 r2qkb1r/ppp1p1pp/1nn1p3/2P5/3P2b1/5N2/PP4PP/RNBQKB1R b KQkq - +B03 Alekhine Defense: Four Pawns Attack, Korchnoi Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 e6 8. Nf3 Be7 9. Be2 O-O 10. O-O f6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 c8f5 b1c3 e7e6 g1f3 f8e7 f1e2 e8g8 e1g1 f7f6 rn1q1rk1/ppp1b1pp/1n2pp2/4Pb2/2PP4/2N2N2/PP2B1PP/R1BQ1RK1 w - - +B03 Alekhine Defense: Four Pawns Attack, Main Line 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 r1bqkb1r/ppp1pppp/1nn5/4P3/2PP4/4B3/PP4PP/RN1QKBNR b KQkq - +B03 Alekhine Defense: Four Pawns Attack, Tartakower Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Qd7 10. Be2 O-O-O 11. O-O Be7 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 c8f5 b1c3 e7e6 g1f3 d8d7 f1e2 e8c8 e1g1 f8e7 2kr3r/pppqbppp/1nn1p3/4Pb2/2PP4/2N1BN2/PP2B1PP/R2Q1RK1 w - - +B03 Alekhine Defense: Four Pawns Attack, Trifunovic Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 c8f5 rn1qkb1r/ppp1pppp/1n1p4/4Pb2/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - +B03 Alekhine Defense: Hunt Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. c5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 c4c5 rnbqkb1r/ppp1pppp/1n1p4/2P1P3/3P4/8/PP3PPP/RNBQKBNR b KQkq - +B03 Alekhine Defense: Modern Variation, Alekhine Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nf3 Bg4 6. Be2 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 g1f3 c8g4 f1e2 rn1qkb1r/ppp1pppp/1n1p4/4P3/2PP2b1/5N2/PP2BPPP/RNBQK2R b KQkq - +B03 Alekhine Defense: O'Sullivan Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 b5 e2e4 g8f6 e4e5 f6d5 d2d4 b7b5 rnbqkb1r/p1pppppp/8/1p1nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B04 Alekhine Defense: Modern Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq - +B04 Alekhine Defense: Modern Variation, Alburt Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 rnbqkb1r/ppp1pp1p/3p2p1/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B04 Alekhine Defense: Modern Variation, Keres Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 f1c4 d5b6 c4b3 f8g7 a2a4 rnbqk2r/ppp1ppbp/1n1p2p1/4P3/P2P4/1B3N2/1PP2PPP/RNBQK2R b KQkq - +B04 Alekhine Defense: Modern Variation, Larsen Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d6e5 rnbqkb1r/ppp1pppp/8/3np3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B04 Alekhine Defense: Modern Variation, Larsen-Haakert Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nc6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 b8c6 r1bqkb1r/ppp1pppp/2np4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B04 Alekhine Defense: Modern Variation, Schmid Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d5b6 rnbqkb1r/ppp1pppp/1n1p4/4P3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B05 Alekhine Defense: Modern Variation, Alekhine Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 rn1qkb1r/ppp1pppp/3p4/3nP3/2PP2b1/5N2/PP3PPP/RNBQKB1R b KQkq - +B05 Alekhine Defense: Modern Variation, Flohr Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 c6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 f1e2 c7c6 rn1qkb1r/pp2pppp/2pp4/3nP3/3P2b1/5N2/PPP1BPPP/RNBQK2R w KQkq - +B05 Alekhine Defense: Modern Variation, Main Line 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq - +B05 Alekhine Defense: Modern Variation, Panov Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 h2h3 rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N1P/PPP2PP1/RNBQKB1R b KQkq - +B05 Alekhine Defense: Modern Variation, Vitolins Attack 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 Nb6 6. d5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 d5b6 d4d5 rn1qkb1r/ppp1pppp/1n1p4/3PP3/2P3b1/5N2/PP3PPP/RNBQKB1R b KQkq - +B06 Modern Defense 1. e4 g6 e2e4 g7g6 rnbqkbnr/pppppp1p/6p1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B06 Modern Defense 1. e4 g6 2. d4 Bg7 e2e4 g7g6 d2d4 f8g7 rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B06 Modern Defense: Anti-Modern 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d6 5. Qe2 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f1c4 d7d6 d1e2 rnbqk1nr/pp2ppbp/2pp2p1/8/2BPP3/2N5/PPP1QPPP/R1B1K1NR b KQkq - +B06 Modern Defense: Bishop Attack 1. e4 g6 2. d4 Bg7 3. Bc4 e2e4 g7g6 d2d4 f8g7 f1c4 rnbqk1nr/ppppppbp/6p1/8/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq - +B06 Modern Defense: Bishop Attack, Bücker Gambit 1. e4 g6 2. d4 Bg7 3. Bc4 b5 e2e4 g7g6 d2d4 f8g7 f1c4 b7b5 rnbqk1nr/p1ppppbp/6p1/1p6/2BPP3/8/PPP2PPP/RNBQK1NR w KQkq - +B06 Modern Defense: Bishop Attack, Monkey's Bum 1. e4 g6 2. Bc4 Bg7 3. Qf3 e6 4. d4 Bxd4 e2e4 g7g6 f1c4 f8g7 d1f3 e7e6 d2d4 g7d4 rnbqk1nr/pppp1p1p/4p1p1/8/2BbP3/5Q2/PPP2PPP/RNB1K1NR w KQkq - +B06 Modern Defense: Dunworthy Variation 1. e4 g6 2. d4 Bg7 3. c4 d5 4. exd5 c6 5. dxc6 Bxd4 e2e4 g7g6 d2d4 f8g7 c2c4 d7d5 e4d5 c7c6 d5c6 g7d4 rnbqk1nr/pp2pp1p/2P3p1/8/2Pb4/8/PP3PPP/RNBQKBNR w KQkq - +B06 Modern Defense: Fianchetto Gambit 1. e4 g6 2. d4 f5 e2e4 g7g6 d2d4 f7f5 rnbqkbnr/ppppp2p/6p1/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B06 Modern Defense: Gurgenidze Defense 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f2f4 d7d5 e4e5 h7h5 rnbqk1nr/pp2ppb1/2p3p1/3pP2p/3P1P2/2N5/PPP3PP/R1BQKBNR w KQkq - +B06 Modern Defense: Lizard Defense, Mittenberger Gambit 1. e4 g6 2. d4 Bg7 3. Nc3 d5 e2e4 g7g6 d2d4 f8g7 b1c3 d7d5 rnbqk1nr/ppp1ppbp/6p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Modern Defense: Masur Gambit 1. e4 g6 2. d4 Nh6 3. Nc3 f5 4. Bxh6 Bxh6 5. exf5 O-O e2e4 g7g6 d2d4 g8h6 b1c3 f7f5 c1h6 f8h6 e4f5 e8g8 rnbq1rk1/ppppp2p/6pb/5P2/3P4/2N5/PPP2PPP/R2QKBNR w KQ - +B06 Modern Defense: Modern Pterodactyl 1. e4 g6 2. d4 Bg7 3. Nc3 c5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Modern Defense: Mongredien Defense 1. e4 g6 2. d4 Bg7 3. Nc3 b6 e2e4 g7g6 d2d4 f8g7 b1c3 b7b6 rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Modern Defense: Mongredien Defense 1. e4 g6 2. d4 Bg7 3. Nf3 b6 e2e4 g7g6 d2d4 f8g7 g1f3 b7b6 rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B06 Modern Defense: Norwegian Defense 1. e4 g6 2. d4 Nf6 e2e4 g7g6 d2d4 g8f6 rnbqkb1r/pppppp1p/5np1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B06 Modern Defense: Norwegian Defense, Norwegian Gambit 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. Be2 d6 e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 f1e2 d7d6 rnbqkb1r/ppp1pp1p/3p2p1/4P2n/3P4/8/PPP1BPPP/RNBQK1NR w KQkq - +B06 Modern Defense: Pseudo-Austrian Attack 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 f2f4 rnbqk1nr/ppp1ppbp/3p2p1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - +B06 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nf3 d6 5. Be2 Qa5+ e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 g1f3 d7d6 f1e2 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/5N2/PP2BPPP/RNBQK2R w KQkq - +B06 Modern Defense: Standard Defense 1. e4 g6 2. d4 Bg7 3. Nc3 d6 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Modern Defense: Standard Line 1. e4 g6 2. d4 Bg7 3. Nc3 e2e4 g7g6 d2d4 f8g7 b1c3 rnbqk1nr/ppppppbp/6p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B06 Modern Defense: Three Pawns Attack 1. e4 g6 2. d4 Bg7 3. f4 e2e4 g7g6 d2d4 f8g7 f2f4 rnbqk1nr/ppppppbp/6p1/8/3PPP2/8/PPP3PP/RNBQKBNR b KQkq - +B06 Modern Defense: Two Knights Variation 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B06 Modern Defense: Two Knights Variation, Suttles Variation 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 g1f3 d7d6 rnbqk1nr/pp2ppbp/2pp2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B06 Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6 5. Bg5 Qb6 6. Qd2 Qxb2 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 c7c6 c1g5 d8b6 d1d2 b6b2 rnb1k1nr/pp2ppbp/2pp2p1/6B1/3PP3/2N2N2/PqPQ1PPP/R3KB1R w KQkq - +B06 Modern Defense: Westermann Gambit 1. e4 g6 2. d4 Bg7 3. Bd2 e2e4 g7g6 d2d4 f8g7 c1d2 rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPPB1PPP/RN1QKBNR b KQkq - +B06 Modern Defense: Wind Gambit 1. e4 g6 2. d4 Bg7 3. Bd3 e2e4 g7g6 d2d4 f8g7 f1d3 rnbqk1nr/ppppppbp/6p1/8/3PP3/3B4/PPP2PPP/RNBQK1NR b KQkq - +B06 Norwegian Defense 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. g4 Ng7 e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 g2g4 h5g7 rnbqkb1r/ppppppnp/6p1/4P3/3P2P1/8/PPP2P1P/RNBQKBNR w KQkq - +B06 Pterodactyl Defense: Austrian, Austriadactylus Western 1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+ e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/5N2/PPP3PP/RNBQKB1R w KQkq - +B06 Pterodactyl Defense: Austrian, Grand Prix Pterodactyl 1. e4 g6 2. Nc3 Bg7 3. f4 c5 4. Nf3 Qa5 e2e4 g7g6 b1c3 f8g7 f2f4 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/4PP2/2N2N2/PPPP2PP/R1BQKB1R w KQkq - +B06 Pterodactyl Defense: Austrian, Pteranodon 1. e4 g6 2. d4 Bg7 3. f4 c5 4. c3 Qa5 e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 c2c3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/2P5/PP4PP/RNBQKBNR w KQkq - +B06 Pterodactyl Defense: Central, Anhanguera 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. Be3 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 c1e3 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N1B3/PP3PPP/R2QKBNR w KQkq - +B06 Pterodactyl Defense: Central, Benoni Quetzalcoatlus 1. e4 g6 2. d4 Bg7 3. c4 c5 4. d5 d6 5. Nc3 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 d4d5 d7d6 b1c3 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1pP4/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Central, Quetzalcoatlus Gambit 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 d4c5 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Anhanguera 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Be3 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 c1e3 rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq - +B06 Pterodactyl Defense: Eastern, Benoni 1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. d5 d2d4 g7g6 e2e4 f8g7 b1c3 c7c5 d4d5 rnbqk1nr/pp1pppbp/6p1/2pP4/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B06 Pterodactyl Defense: Eastern, Benoni Pteranodon 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1pP4/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Benoni Pterodactyl 1. d4 g6 2. Nc3 Bg7 3. e4 c5 4. d5 Qa5 d2d4 g7g6 b1c3 f8g7 e2e4 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Pteranodon 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Bxc3+ 5. bxc3 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1P5/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Pterodactyl 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Rhamphorhynchus 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 rnbqk1nr/pp1pppbp/6p1/2P5/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B06 Pterodactyl Defense: Fianchetto, King Pterodactyl 1. e4 g6 2. d4 Bg7 3. g3 c5 4. Nf3 Qa5+ e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/5NP1/PPP2P1P/RNBQKB1R w KQkq - +B06 Pterodactyl Defense: Fianchetto, Rhamphorhynchus 1. e4 g6 2. d4 Bg7 3. g3 c5 4. dxc5 Qa5+ e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/6P1/PPP2P1P/RNBQKBNR w KQkq - +B06 Pterodactyl Defense: Sicilian, Quetzalcoatlus 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Be2 d6 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1e2 d7d6 rnb1k1nr/pp2ppbp/3p2p1/q1p5/3PP3/2N2N2/PPP1BPPP/R1BQK2R w KQkq - +B06 Pterodactyl Defense: Sicilian, Siroccopteryx 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Bc4 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1c4 rnb1k1nr/pp1pppbp/6p1/q1p5/2BPP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +B06 Pterodactyl Defense: Western, Anhanguera 1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. Be3 Qa5+ e2e4 g7g6 d2d4 f8g7 g1f3 c7c5 c1e3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/4BN2/PPP2PPP/RN1QKB1R w KQkq - +B06 Pterodactyl Defense: Western, Siroccopteryx 1. e4 g6 2. Nf3 Bg7 3. d4 c5 4. Bc4 cxd4 5. Nxd4 Qa5+ e2e4 g7g6 g1f3 f8g7 d2d4 c7c5 f1c4 c5d4 f3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/2BNP3/8/PPP2PPP/RNBQK2R w KQkq - +B06 Rat Defense: Accelerated Gurgenidze 1. e4 g6 2. d4 d6 3. Nc3 c6 e2e4 g7g6 d2d4 d7d6 b1c3 c7c6 rnbqkbnr/pp2pp1p/2pp2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B07 Czech Defense 1. e4 d6 2. d4 Nf6 3. Nc3 c6 e2e4 d7d6 d2d4 g8f6 b1c3 c7c6 rnbqkb1r/pp2pppp/2pp1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B07 Lion Defense: Anti-Philidor 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 r1bqkb1r/pppnpppp/3p1n2/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - +B07 Lion Defense: Anti-Philidor, Lion's Cave 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5 r1bqkb1r/pppn1ppp/3p1n2/4p3/3PPP2/2N5/PPP3PP/R1BQKBNR w KQkq - +B07 Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Qxd4 c6 7. Bc4 d5 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5 g1f3 e5d4 d1d4 c7c6 f1c4 d6d5 r1bqkb1r/pp1n1ppp/2p2n2/3p4/2BQPP2/2N2N2/PPP3PP/R1B1K2R w KQkq - +B07 Lion Defense: Bayonet Attack 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. g4 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 g2g4 r1bqkb1r/pppnpppp/3p1n2/8/3PP1P1/2N5/PPP2P1P/R1BQKBNR b KQkq - +B07 Modern Defense: Geller's System 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 e2e4 g7g6 d2d4 f8g7 g1f3 d7d6 c2c3 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B07 Philidor Defense: Lion Variation, Lion's Claw 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Be2 Nbd7 5. Nf3 e5 6. O-O Be7 e2e4 d7d6 d2d4 g8f6 b1c3 c7c6 f1e2 b8d7 g1f3 e7e5 e1g1 f8e7 r1bqk2r/pp1nbppp/2pp1n2/4p3/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w kq - +B07 Pirc Defense 1. e4 d6 2. d4 Nf6 3. Nc3 e2e4 d7d6 d2d4 g8f6 b1c3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B07 Pirc Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B07 Pirc Defense: 150 Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2 rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B3/PPPQ1PPP/R3KBNR b KQkq - +B07 Pirc Defense: 150 Attack, Inner Doll Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 Bg4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2 c8g4 rn1qkb1r/pp2pp1p/2pp1np1/8/3PP1b1/2N1B3/PPPQ1PPP/R3KBNR w KQkq - +B07 Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. h3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 h2h3 rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B2P/PPP2PP1/R2QKBNR b KQkq - +B07 Pirc Defense: Bayonet Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 h2h4 rnbqk2r/ppp1ppbp/3p1np1/8/3PP2P/2N5/PPP1BPP1/R1BQK1NR b KQkq - +B07 Pirc Defense: Byrne Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1g5 rnbqkb1r/ppp1pp1p/3p1np1/6B1/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq - +B07 Pirc Defense: Chinese Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 g2g4 rnbqk2r/ppp1ppbp/3p1np1/8/3PP1P1/2N5/PPP1BP1P/R1BQK1NR b KQkq - +B07 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP1BPPP/R1BQK1NR b KQkq - +B07 Pirc Defense: Kholmov System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1c4 rnbqkb1r/ppp1pp1p/3p1np1/8/2BPP3/2N5/PPP2PPP/R1BQK1NR b KQkq - +B07 Pirc Defense: Sveshnikov System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g2g3 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N3P1/PPP2P1P/R1BQKBNR b KQkq - +B08 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B08 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B08 Pirc Defense: Classical Variation, Quiet System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQK2R b KQkq - +B08 Pirc Defense: Classical Variation, Quiet System, Chigorin Line 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Nc6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w - - +B08 Pirc Defense: Classical Variation, Quiet System, Czech Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c7c6 rnbq1rk1/pp2ppbp/2pp1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w - - +B08 Pirc Defense: Classical Variation, Quiet System, Parma Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Bg4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c8g4 rn1q1rk1/ppp1ppbp/3p1np1/8/3PP1b1/2N2N2/PPP1BPPP/R1BQ1RK1 w - - +B08 Pirc Defense: Classical Variation, Schlechter Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 h2h3 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N1P/PPP2PP1/R1BQKB1R b KQkq - +B09 Pirc Defense: Austrian Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 rnbqkb1r/ppp1pp1p/3p1np1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - +B09 Pirc Defense: Austrian Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQ - +B09 Pirc Defense: Austrian Attack, Dragon Formation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 c7c5 rnbqk2r/pp2ppbp/3p1np1/2p5/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQkq - +B09 Pirc Defense: Austrian Attack, Kurajica Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 c1e3 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N1BN2/PPP3PP/R2QKB1R b KQ - +B09 Pirc Defense: Austrian Attack, Ljubojevic Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bc4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 f1c4 rnbqk2r/ppp1ppbp/3p1np1/8/2BPPP2/2N5/PPP3PP/R1BQK1NR b KQkq - +B09 Pirc Defense: Austrian Attack, Unzicker Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5 rnbq1rk1/ppp1ppbp/3p1np1/4P3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQ - +B09 Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 Nfd7 7. h4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5 f6d7 h2h4 rnbq1rk1/pppnppbp/3p2p1/4P3/3P1P1P/2N2N2/PPP3P1/R1BQKB1R b KQ - +B09 Pirc Defense: Austrian Attack, Weiss Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 f1d3 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2NB1N2/PPP3PP/R1BQK2R b KQ - +B10 Caro-Kann Defense 1. e4 c6 e2e4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense 1. e4 c6 2. Nc3 e2e4 c7c6 b1c3 rnbqkbnr/pp1ppppp/2p5/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - +B10 Caro-Kann Defense 1. e4 c6 2. Nc3 d5 e2e4 c7c6 b1c3 d7d5 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack 1. e4 c6 2. c4 e2e4 c7c6 c2c4 rnbqkbnr/pp1ppppp/2p5/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack 1. e4 c6 2. c4 d5 e2e4 c7c6 c2c4 d7d5 rnbqkbnr/pp2pppp/2p5/3p4/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack, Modern Variation 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 e2e4 c7c6 c2c4 d7d5 e4d5 c6d5 c4d5 g8f6 rnbqkb1r/pp2pppp/5n2/3P4/8/8/PP1P1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack, Open Variation 1. e4 c6 2. c4 e5 e2e4 c7c6 c2c4 e7e5 rnbqkbnr/pp1p1ppp/2p5/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack, Pseudo-Scandinavian 1. e4 c6 2. c4 d5 3. exd5 Qxd5 e2e4 c7c6 c2c4 d7d5 e4d5 d8d5 rnb1kbnr/pp2pppp/2p5/3q4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack 1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. Qb3 e2e4 c7c6 c2c4 d7d5 c4d5 c6d5 d1b3 rnbqkbnr/pp2pppp/8/3p4/4P3/1Q6/PP1P1PPP/RNB1KBNR b KQkq - +B10 Caro-Kann Defense: Breyer Variation 1. e4 c6 2. d3 e2e4 c7c6 d2d3 rnbqkbnr/pp1ppppp/2p5/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Breyer Variation, Stein Attack 1. e4 c6 2. d3 d5 3. Nd2 g6 4. Ngf3 Bg7 5. g3 e5 6. Bg2 Ne7 7. O-O O-O 8. b4 e2e4 c7c6 d2d3 d7d5 b1d2 g7g6 g1f3 f8g7 g2g3 e7e5 f1g2 g8e7 e1g1 e8g8 b2b4 rnbq1rk1/pp2npbp/2p3p1/3pp3/1P2P3/3P1NP1/P1PN1PBP/R1BQ1RK1 b - - +B10 Caro-Kann Defense: Euwe Attack 1. e4 c6 2. b3 e2e4 c7c6 b2b3 rnbqkbnr/pp1ppppp/2p5/8/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Goldman Variation 1. e4 c6 2. Nc3 d5 3. Qf3 e2e4 c7c6 b1c3 d7d5 d1f3 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2Q2/PPPP1PPP/R1B1KBNR b KQkq - +B10 Caro-Kann Defense: Hector Gambit 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Ng5 e2e4 c7c6 b1c3 d7d5 g1f3 d5e4 f3g5 rnbqkbnr/pp2pppp/2p5/6N1/4p3/2N5/PPPP1PPP/R1BQKB1R b KQkq - +B10 Caro-Kann Defense: Hillbilly Attack 1. e4 c6 2. Bc4 e2e4 c7c6 f1c4 rnbqkbnr/pp1ppppp/2p5/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - +B10 Caro-Kann Defense: Hillbilly Attack, Schaeffer Gambit 1. e4 c6 2. Bc4 d5 3. Bb3 dxe4 4. Qh5 e2e4 c7c6 f1c4 d7d5 c4b3 d5e4 d1h5 rnbqkbnr/pp2pppp/2p5/7Q/4p3/1B6/PPPP1PPP/RNB1K1NR b KQkq - +B10 Caro-Kann Defense: Labahn Attack 1. e4 c6 2. b4 e2e4 c7c6 b2b4 rnbqkbnr/pp1ppppp/2p5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Labahn Attack, Double Gambit 1. e4 c6 2. b4 d5 3. b5 e2e4 c7c6 b2b4 d7d5 b4b5 rnbqkbnr/pp2pppp/2p5/1P1p4/4P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Labahn Attack, Polish Variation 1. e4 c6 2. b4 e5 3. Bb2 e2e4 c7c6 b2b4 e7e5 c1b2 rnbqkbnr/pp1p1ppp/2p5/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - +B10 Caro-Kann Defense: Scorpion-Horus Gambit 1. e4 c6 2. Nc3 d5 3. d3 dxe4 4. Bg5 e2e4 c7c6 b1c3 d7d5 d2d3 d5e4 c1g5 rnbqkbnr/pp2pppp/2p5/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq - +B10 Caro-Kann Defense: Spike Variation 1. e4 c6 2. g4 e2e4 c7c6 g2g4 rnbqkbnr/pp1ppppp/2p5/8/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Spike Variation, Scorpion-Grob Gambit 1. e4 c6 2. g4 d5 3. Nc3 dxe4 4. d3 e2e4 c7c6 g2g4 d7d5 b1c3 d5e4 d2d3 rnbqkbnr/pp2pppp/2p5/8/4p1P1/2NP4/PPP2P1P/R1BQKBNR b KQkq - +B10 Caro-Kann Defense: Toikkanen Gambit 1. e4 c6 2. c4 d5 3. e5 e2e4 c7c6 c2c4 d7d5 e4e5 rnbqkbnr/pp2pppp/2p5/3pP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Two Knights Attack 1. e4 c6 2. Nc3 d5 3. Nf3 e2e4 c7c6 b1c3 d7d5 g1f3 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +B11 Caro-Kann Defense: Two Knights Attack, Mindeno Variation 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 e2e4 c7c6 b1c3 d7d5 g1f3 c8g4 rn1qkbnr/pp2pppp/2p5/3p4/4P1b1/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +B11 Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 e2e4 c7c6 b1c3 d7d5 g1f3 c8g4 h2h3 g4f3 rn1qkbnr/pp2pppp/2p5/3p4/4P3/2N2b1P/PPPP1PP1/R1BQKB1R w KQkq - +B11 Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bh5 e2e4 c7c6 b1c3 d7d5 g1f3 c8g4 h2h3 g4h5 rn1qkbnr/pp2pppp/2p5/3p3b/4P3/2N2N1P/PPPP1PP1/R1BQKB1R w KQkq - +B12 Caro-Kann Defense 1. e4 c6 2. d4 e2e4 c7c6 d2d4 rnbqkbnr/pp1ppppp/2p5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +B12 Caro-Kann Defense 1. e4 c6 2. d4 d5 e2e4 c7c6 d2d4 d7d5 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: Advance Variation 1. e4 c6 2. d4 d5 3. e5 e2e4 c7c6 d2d4 d7d5 e4e5 rnbqkbnr/pp2pppp/2p5/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Bayonet Attack 1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 g2g4 rn1qkbnr/pp2pppp/2p5/3pPb2/3P2P1/8/PPP2P1P/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense 1. e4 c6 2. d4 d5 3. e5 c5 e2e4 c7c6 d2d4 d7d5 e4e5 c6c5 rnbqkbnr/pp2pppp/8/2ppP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: Advance Variation, Bronstein Variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 g1e2 rn1qkbnr/pp2pppp/2p5/3pPb2/3P4/8/PPP1NPPP/RNBQKB1R b KQkq - +B12 Caro-Kann Defense: Advance Variation, Prins Attack 1. e4 c6 2. d4 d5 3. e5 Bf5 4. b4 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 b2b4 rn1qkbnr/pp2pppp/2p5/3pPb2/1P1P4/8/P1P2PPP/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Short Variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 g1f3 rn1qkbnr/pp2pppp/2p5/3pPb2/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq - +B12 Caro-Kann Defense: Advance Variation, Tal Variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 h2h4 rn1qkbnr/pp2pppp/2p5/3pPb2/3P3P/8/PPP2PP1/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Van der Wiel Attack 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 b1c3 rn1qkbnr/pp2pppp/2p5/3pPb2/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Van der Wiel Attack 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 b1c3 e7e6 g2g4 f5g6 g1e2 c6c5 h2h4 rn1qkbnr/pp3ppp/4p1b1/2ppP3/3P2PP/2N5/PPP1NP2/R1BQKB1R b KQkq - +B12 Caro-Kann Defense: Advance Variation, Van der Wiel Attack, Dreyev Defense 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 Qb6 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 b1c3 d8b6 rn2kbnr/pp2pppp/1qp5/3pPb2/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B12 Caro-Kann Defense: Advance, Short Variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. c3 e6 5. Be2 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 c2c3 e7e6 f1e2 rn1qkbnr/pp3ppp/2p1p3/3pPb2/3P4/2P5/PP2BPPP/RNBQK1NR b KQkq - +B12 Caro-Kann Defense: De Bruycker Defense 1. e4 c6 2. d4 Na6 e2e4 c7c6 d2d4 b8a6 r1bqkbnr/pp1ppppp/n1p5/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: De Bruycker Defense 1. e4 c6 2. d4 Na6 3. Nc3 Nc7 e2e4 c7c6 d2d4 b8a6 b1c3 a6c7 r1bqkbnr/ppnppppp/2p5/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B12 Caro-Kann Defense: Edinburgh Variation 1. e4 c6 2. d4 d5 3. Nd2 Qb6 e2e4 c7c6 d2d4 d7d5 b1d2 d8b6 rnb1kbnr/pp2pppp/1qp5/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +B12 Caro-Kann Defense: Maróczy Variation 1. e4 c6 2. d4 d5 3. f3 e2e4 c7c6 d2d4 d7d5 f2f3 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Maróczy Variation, Maróczy Gambit 1. e4 c6 2. d4 d5 3. f3 dxe4 4. fxe4 e5 5. Nf3 exd4 6. Bc4 e2e4 c7c6 d2d4 d7d5 f2f3 d5e4 f3e4 e7e5 g1f3 e5d4 f1c4 rnbqkbnr/pp3ppp/2p5/8/2BpP3/5N2/PPP3PP/RNBQK2R b KQkq - +B12 Caro-Kann Defense: Masi Variation 1. e4 c6 2. d4 Nf6 e2e4 c7c6 d2d4 g8f6 rnbqkb1r/pp1ppppp/2p2n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: Massachusetts Defense 1. e4 c6 2. d4 f5 e2e4 c7c6 d2d4 f7f5 rnbqkbnr/pp1pp1pp/2p5/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: Mieses Attack, Landau Gambit 1. e4 c6 2. d4 d5 3. Bd3 Nf6 4. e5 Nfd7 5. e6 e2e4 c7c6 d2d4 d7d5 f1d3 g8f6 e4e5 f6d7 e5e6 rnbqkb1r/pp1npppp/2p1P3/3p4/3P4/3B4/PPP2PPP/RNBQK1NR b KQkq - +B12 Caro-Kann Defense: Mieses Gambit 1. e4 c6 2. d4 d5 3. Be3 e2e4 c7c6 d2d4 d7d5 c1e3 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq - +B12 Caro-Kann Defense: Modern Variation 1. e4 c6 2. d4 d5 3. Nd2 e2e4 c7c6 d2d4 d7d5 b1d2 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/8/PPPN1PPP/R1BQKBNR b KQkq - +B12 Caro-Kann Defense: Ulysses Gambit 1. e4 c6 2. d4 d5 3. Nf3 dxe4 4. Ng5 e2e4 c7c6 d2d4 d7d5 g1f3 d5e4 f3g5 rnbqkbnr/pp2pppp/2p5/6N1/3Pp3/8/PPP2PPP/RNBQKB1R b KQkq - +B13 Caro-Kann Defense: Exchange Variation 1. e4 c6 2. d4 d5 3. exd5 e2e4 c7c6 d2d4 d7d5 e4d5 rnbqkbnr/pp2pppp/2p5/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B13 Caro-Kann Defense: Exchange Variation, Bulla Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. g4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 g2g4 rnbqkbnr/pp2pppp/8/3p4/3P2P1/8/PPP2P1P/RNBQKBNR b KQkq - +B13 Caro-Kann Defense: Exchange Variation, Rubinstein Variation 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 f1d3 b8c6 c2c3 g8f6 c1f4 r1bqkb1r/pp2pppp/2n2n2/3p4/3P1B2/2PB4/PP3PPP/RN1QK1NR b KQkq - +B13 Caro-Kann Defense: Panov Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 rnbqkbnr/pp2pppp/8/3p4/2PP4/8/PP3PPP/RNBQKBNR b KQkq - +B13 Caro-Kann Defense: Panov Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 rnbqkb1r/pp2pppp/5n2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR b KQkq - +B13 Caro-Kann Defense: Panov Attack, Gunderam Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. c5 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 c4c5 rnbqkb1r/pp2pppp/5n2/2Pp4/3P4/8/PP3PPP/RNBQKBNR b KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 r1bqkb1r/pp2pppp/2n2n2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense, Carlsbad Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 e6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 e7e6 r1bqkb1r/pp3ppp/2n1pn2/3p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense, Czerniak Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Qa5 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d8a5 r1b1kb1r/pp2pppp/2n2n2/q2p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense, Mieses Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 g1f3 c8g4 r2qkb1r/pp2pppp/2n2n2/3p4/2PP2b1/2N2N2/PP3PPP/R1BQKB1R w KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense, Reifir-Spielmann Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Qb6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d8b6 r1b1kb1r/pp2pppp/1qn2n2/3p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq - +B13 Caro-Kann Defense: Panov-Botvinnik, Herzog Defense 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 dxc4 7. d5 Na5 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d5c4 d4d5 c6a5 r1bqkb1r/pp2pppp/5n2/n2P2B1/2p5/2N5/PP3PPP/R2QKBNR w KQkq - +B14 Caro-Kann Defense: Panov Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 e7e6 rnbqkb1r/pp3ppp/4pn2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - +B14 Caro-Kann Defense: Panov Attack, Fianchetto Defense 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 g7g6 rnbqkb1r/pp2pp1p/5np1/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - +B14 Caro-Kann Defense: Panov Attack, Fianchetto Defense, Fianchetto Gambit 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Bg7 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 g7g6 c4d5 f8g7 rnbqk2r/pp2ppbp/5np1/3P4/3P4/2N5/PP3PPP/R1BQKBNR w KQkq - +B14 Caro-Kann Defense: Panov Attack, Main Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 e7e6 g1f3 f8b4 rnbqk2r/pp3ppp/4pn2/3p4/1bPP4/2N2N2/PP3PPP/R1BQKB1R w KQkq - +B15 Caro-Kann Defense 1. e4 c6 2. d4 d5 3. Nc3 e2e4 c7c6 d2d4 d7d5 b1c3 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B15 Caro-Kann Defense: Alekhine Gambit 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Bd3 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 f1d3 rnbqkb1r/pp2pppp/2p2n2/8/3PN3/3B4/PPP2PPP/R1BQK1NR b KQkq - +B15 Caro-Kann Defense: Finnish Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 h6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 h7h6 rnbqkbnr/pp2ppp1/2p4p/8/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +B15 Caro-Kann Defense: Forgacs Variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 e7f6 f1c4 rnbqkb1r/pp3ppp/2p2p2/8/2BP4/8/PPP2PPP/R1BQK1NR b KQkq - +B15 Caro-Kann Defense: Gurgenidze Counterattack 1. e4 c6 2. d4 d5 3. Nc3 b5 e2e4 c7c6 d2d4 d7d5 b1c3 b7b5 rnbqkbnr/p3pppp/2p5/1p1p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B15 Caro-Kann Defense: Gurgenidze System 1. e4 c6 2. d4 d5 3. Nc3 g6 e2e4 c7c6 d2d4 d7d5 b1c3 g7g6 rnbqkbnr/pp2pp1p/2p3p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B15 Caro-Kann Defense: Main Line 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 rnbqkbnr/pp2pppp/2p5/8/3PN3/8/PPP2PPP/R1BQKBNR b KQkq - +B15 Caro-Kann Defense: Rasa-Studier Gambit 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. f3 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 f2f3 rnbqkbnr/pp2pppp/2p5/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR b KQkq - +B15 Caro-Kann Defense: Tartakower Variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 e7f6 rnbqkb1r/pp3ppp/2p2p2/8/3P4/8/PPP2PPP/R1BQKBNR w KQkq - +B15 Caro-Kann Defense: von Hennig Gambit 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Bc4 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 f1c4 rnbqkbnr/pp2pppp/2p5/8/2BPp3/2N5/PPP2PPP/R1BQK1NR b KQkq - +B16 Caro-Kann Defense: Bronstein-Larsen Variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 g7f6 rnbqkb1r/pp2pp1p/2p2p2/8/3P4/8/PPP2PPP/R1BQKBNR w KQkq - +B17 Caro-Kann Defense: Karpov Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 r1bqkbnr/pp1npppp/2p5/8/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +B17 Caro-Kann Defense: Karpov Variation, Modern Main Line 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 Ngf6 6. Bd3 e6 7. N1f3 Bd6 8. Qe2 h6 9. Ne4 Nxe4 10. Qxe4 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 e4g5 g8f6 f1d3 e7e6 g1f3 f8d6 d1e2 h7h6 g5e4 f6e4 e2e4 r1bqk2r/pp1n1pp1/2pbp2p/8/3PQ3/3B1N2/PPP2PPP/R1B1K2R b KQkq - +B17 Caro-Kann Defense: Karpov Variation, Modern Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 e4g5 r1bqkbnr/pp1npppp/2p5/6N1/3P4/8/PPP2PPP/R1BQKBNR b KQkq - +B17 Caro-Kann Defense: Karpov Variation, Modern Variation, Ivanchuk Defense 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 Ndf6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 e4g5 d7f6 r1bqkbnr/pp2pppp/2p2n2/6N1/3P4/8/PPP2PPP/R1BQKBNR w KQkq - +B17 Caro-Kann Defense: Karpov Variation, Modern Variation, Kasparov Attack 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7 g1f3 g8f6 e4g3 r1bqkb1r/pp1npppp/2p2n2/8/3P4/5NN1/PPP2PPP/R1BQKB1R b KQkq - +B17 Caro-Kann Defense: Karpov Variation, Smyslov Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 f1c4 g8f6 e4g5 e7e6 d1e2 d7b6 r1bqkb1r/pp3ppp/1np1pn2/6N1/2BP4/8/PPP1QPPP/R1B1K1NR w KQkq - +B17 Caro-Kann Defense: Karpov Variation, Smyslov Variation, Main Line 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bb3 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 f1c4 g8f6 e4g5 e7e6 d1e2 d7b6 c4b3 r1bqkb1r/pp3ppp/1np1pn2/6N1/3P4/1B6/PPP1QPPP/R1B1K1NR b KQkq - +B17 Caro-Kann Defense: Karpov Variation, Tiviakov-Fischer Attack 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Nxf6+ Nxf6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 f1c4 g8f6 e4f6 d7f6 r1bqkb1r/pp2pppp/2p2n2/8/2BP4/8/PPP2PPP/R1BQK1NR w KQkq - +B18 Caro-Kann Defense: Classical Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 rn1qkbnr/pp2pppp/2p5/5b2/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +B18 Caro-Kann Defense: Classical Variation, Flohr Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 g1h3 rn1qkbnr/pp2pppp/2p3b1/8/3P4/6NN/PPP2PPP/R1BQKB1R b KQkq - +B18 Caro-Kann Defense: Classical Variation, Main Line 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 rn1qkbnr/pp2pppp/2p3b1/8/3P3P/6N1/PPP2PP1/R1BQKBNR b KQkq - +B18 Caro-Kann Defense: Classical Variation, Maróczy Attack 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. f4 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 f2f4 rn1qkbnr/pp2pppp/2p3b1/8/3P1P2/6N1/PPP3PP/R1BQKBNR b KQkq - +B19 Caro-Kann Defense: Classical Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 r2qkbnr/pp1nppp1/2p3bp/8/3P3P/5NN1/PPP2PP1/R1BQKB1R w KQkq - +B19 Caro-Kann Defense: Classical Variation, Lobron System 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Be7 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 h4h5 g6h7 f1d3 h7d3 d1d3 e7e6 c1d2 g8f6 e1c1 f8e7 r2qk2r/pp1nbpp1/2p1pn1p/7P/3P4/3Q1NN1/PPPB1PP1/2KR3R w kq - +B19 Caro-Kann Defense: Classical Variation, Seirawan Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. O-O-O Bd6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 h4h5 g6h7 f1d3 h7d3 d1d3 g8f6 c1d2 e7e6 e1c1 f8d6 r2qk2r/pp1n1pp1/2pbpn1p/7P/3P4/3Q1NN1/PPPB1PP1/2KR3R w kq - +B19 Caro-Kann Defense: Classical Variation, Spassky Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 h4h5 r2qkbnr/pp1nppp1/2p3bp/7P/3P4/5NN1/PPP2PP1/R1BQKB1R b KQkq - +B20 Caro-Kann Defense: Euwe Attack, Prins Gambit 1. e4 c5 2. b3 d5 3. Bb2 e2e4 c7c5 b2b3 d7d5 c1b2 rnbqkbnr/pp2pppp/8/2pp4/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq - +B20 Sicilian Defense 1. e4 c5 e2e4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B20 Sicilian Defense: Amazon Attack 1. e4 c5 2. Qg4 e2e4 c7c5 d1g4 rnbqkbnr/pp1ppppp/8/2p5/4P1Q1/8/PPPP1PPP/RNB1KBNR b KQkq - +B20 Sicilian Defense: Big Clamp Formation 1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4 e2e4 c7c5 d2d3 b8c6 c2c3 d7d6 f2f4 r1bqkbnr/pp2pppp/2np4/2p5/4PP2/2PP4/PP4PP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Bowdler Attack 1. e4 c5 2. Bc4 e2e4 c7c5 f1c4 rnbqkbnr/pp1ppppp/8/2p5/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - +B20 Sicilian Defense: Brick Variation 1. e4 c5 2. Nh3 e2e4 c7c5 g1h3 rnbqkbnr/pp1ppppp/8/2p5/4P3/7N/PPPP1PPP/RNBQKB1R b KQkq - +B20 Sicilian Defense: Gloria Variation 1. e4 c5 2. c4 d6 3. Nc3 Nc6 4. g3 h5 e2e4 c7c5 c2c4 d7d6 b1c3 b8c6 g2g3 h7h5 r1bqkbnr/pp2ppp1/2np4/2p4p/2P1P3/2N3P1/PP1P1P1P/R1BQKBNR w KQkq - +B20 Sicilian Defense: Grob Variation 1. e4 c5 2. g4 e2e4 c7c5 g2g4 rnbqkbnr/pp1ppppp/8/2p5/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq - +B20 Sicilian Defense: Keres Variation 1. e4 c5 2. Ne2 e2e4 c7c5 g1e2 rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPPNPPP/RNBQKB1R b KQkq - +B20 Sicilian Defense: King David's Opening 1. e4 c5 2. Ke2 e2e4 c7c5 e1e2 rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPPKPPP/RNBQ1BNR b kq - +B20 Sicilian Defense: Kronberger Variation 1. e4 c5 2. Na3 e2e4 c7c5 b1a3 rnbqkbnr/pp1ppppp/8/2p5/4P3/N7/PPPP1PPP/R1BQKBNR b KQkq - +B20 Sicilian Defense: Kronberger Variation, Nemeth Gambit 1. e4 c5 2. Na3 Nc6 3. d4 cxd4 4. Bc4 e2e4 c7c5 b1a3 b8c6 d2d4 c5d4 f1c4 r1bqkbnr/pp1ppppp/2n5/8/2BpP3/N7/PPP2PPP/R1BQK1NR b KQkq - +B20 Sicilian Defense: Lasker-Dunne Attack 1. e4 c5 2. g3 e2e4 c7c5 g2g3 rnbqkbnr/pp1ppppp/8/2p5/4P3/6P1/PPPP1P1P/RNBQKBNR b KQkq - +B20 Sicilian Defense: Mengarini Variation 1. e4 c5 2. a3 e2e4 c7c5 a2a3 rnbqkbnr/pp1ppppp/8/2p5/4P3/P7/1PPP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Myers Attack 1. e4 c5 2. a4 e2e4 c7c5 a2a4 rnbqkbnr/pp1ppppp/8/2p5/P3P3/8/1PPP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Myers Attack 1. e4 c5 2. h4 e2e4 c7c5 h2h4 rnbqkbnr/pp1ppppp/8/2p5/4P2P/8/PPPP1PP1/RNBQKBNR b KQkq - +B20 Sicilian Defense: Snyder Variation 1. e4 c5 2. b3 e2e4 c7c5 b2b3 rnbqkbnr/pp1ppppp/8/2p5/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Snyder Variation, Queen Fianchetto Variation 1. e4 c5 2. b3 b6 e2e4 c7c5 b2b3 b7b6 rnbqkbnr/p2ppppp/1p6/2p5/4P3/1P6/P1PP1PPP/RNBQKBNR w KQkq - +B20 Sicilian Defense: Staunton-Cochrane Variation 1. e4 c5 2. c4 e2e4 c7c5 c2c4 rnbqkbnr/pp1ppppp/8/2p5/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit 1. e4 c5 2. b4 e2e4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit, Abrahams Variation 1. e4 c5 2. b4 cxb4 3. Bb2 e2e4 c7c5 b2b4 c5b4 c1b2 rnbqkbnr/pp1ppppp/8/8/1p2P3/8/PBPP1PPP/RN1QKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit, Carlsbad Variation 1. e4 c5 2. b4 cxb4 3. a3 bxa3 e2e4 c7c5 b2b4 c5b4 a2a3 b4a3 rnbqkbnr/pp1ppppp/8/8/4P3/p7/2PP1PPP/RNBQKBNR w KQkq - +B20 Sicilian Defense: Wing Gambit, Marienbad Variation 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2 e2e4 c7c5 b2b4 c5b4 a2a3 d7d5 e4d5 d8d5 c1b2 rnb1kbnr/pp2pppp/8/3q4/1p6/P7/1BPP1PPP/RN1QKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit, Marshall Variation 1. e4 c5 2. b4 cxb4 3. a3 e2e4 c7c5 b2b4 c5b4 a2a3 rnbqkbnr/pp1ppppp/8/8/1p2P3/P7/2PP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit, Nanu Gambit 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3 e2e4 c7c5 b2b4 c5b4 a2a3 d7d5 e4d5 d8d5 g1f3 e7e5 c2c4 d5e6 f1d3 rnb1kbnr/pp3ppp/4q3/4p3/1pP5/P2B1N2/3P1PPP/RNBQK2R b KQkq - +B20 Sicilian Defense: Wing Gambit, Romanian Defense 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. Bb2 Nc6 7. c4 Qe6 e2e4 c7c5 b2b4 c5b4 a2a3 d7d5 e4d5 d8d5 g1f3 e7e5 c1b2 b8c6 c2c4 d5e6 r1b1kbnr/pp3ppp/2n1q3/4p3/1pP5/P4N2/1B1P1PPP/RN1QKB1R w KQkq - +B20 Sicilian Defense: Wing Gambit, Santasiere Variation 1. e4 c5 2. b4 cxb4 3. c4 e2e4 c7c5 b2b4 c5b4 c2c4 rnbqkbnr/pp1ppppp/8/8/1pP1P3/8/P2P1PPP/RNBQKBNR b KQkq c3 +B21 Bird Opening: Dutch Variation, Batavo Gambit 1. e4 c5 2. f4 d5 3. Nf3 dxe4 e2e4 c7c5 f2f4 d7d5 g1f3 d5e4 rnbqkbnr/pp2pppp/8/2p5/4pP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +B21 Sicilian Defense: Coles Sicilian Gambit 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Bc4 e2e4 c7c5 d2d4 c5d4 d1d4 b8c6 d4d1 g8f6 f1c4 r1bqkb1r/pp1ppppp/2n2n2/8/2B1P3/8/PPP2PPP/RNBQK1NR b KQkq - +B21 Sicilian Defense: Halasz Gambit 1. e4 c5 2. d4 cxd4 3. f4 e2e4 c7c5 d2d4 c5d4 f2f4 rnbqkbnr/pp1ppppp/8/8/3pPP2/8/PPP3PP/RNBQKBNR b KQkq - +B21 Sicilian Defense: McDonnell Attack 1. e4 c5 2. f4 e2e4 c7c5 f2f4 rnbqkbnr/pp1ppppp/8/2p5/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +B21 Sicilian Defense: McDonnell Attack, Tal Gambit 1. e4 c5 2. f4 d5 3. exd5 Nf6 e2e4 c7c5 f2f4 d7d5 e4d5 g8f6 rnbqkb1r/pp2pppp/5n2/2pP4/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Morphy Gambit 1. d4 c5 2. e4 cxd4 3. Nf3 d2d4 c7c5 e2e4 c5d4 g1f3 rnbqkbnr/pp1ppppp/8/8/3pP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B21 Sicilian Defense: Morphy Gambit, Andreaschek Gambit 1. d4 c5 2. e4 cxd4 3. Nf3 e5 4. c3 d2d4 c7c5 e2e4 c5d4 g1f3 e7e5 c2c3 rnbqkbnr/pp1p1ppp/8/4p3/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B21 Sicilian Defense: Smith-Morra Gambit 1. e4 c5 2. d4 e2e4 c7c5 d2d4 rnbqkbnr/pp1ppppp/8/2p5/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +B21 Sicilian Defense: Smith-Morra Gambit 1. e4 c5 2. d4 cxd4 3. c3 e2e4 c7c5 d2d4 c5d4 c2c3 rnbqkbnr/pp1ppppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR b KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Chicago Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Nf3 e6 6. Bc4 Nf6 7. O-O a6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 d7d6 g1f3 e7e6 f1c4 g8f6 e1g1 a7a6 rnbqkb1r/1p3ppp/p2ppn2/8/2B1P3/2N2N2/PP3PPP/R1BQ1RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Classical Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 a6 7. O-O Nf6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 d7d6 f1c4 a7a6 e1g1 g8f6 r1bqkb1r/1p2pppp/p1np1n2/8/2B1P3/2N2N2/PP3PPP/R1BQ1RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Fianchetto Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 g7g6 r1bqkbnr/pp1ppp1p/2n3p1/8/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Kan Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 a6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 e7e6 g1f3 a7a6 rnbqkbnr/1p1p1ppp/p3p3/8/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Larsen Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Qc7 7. Qe2 a6 8. O-O Bd6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 d8c7 d1e2 a7a6 e1g1 f8d6 r1b1k1nr/1pqp1ppp/p1nbp3/8/2B1P3/2N2N2/PP2QPPP/R1B2RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bc5 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 f8c5 r1bqk1nr/pp1p1ppp/2n1p3/2b5/2B1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense Deferred 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 7. O-O b5 8. Bb3 Bc5 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 a7a6 e1g1 b7b5 c4b3 f8c5 r1bqk1nr/3p1ppp/p1n1p3/1pb5/4P3/1BN2N2/PP3PPP/R1BQ1RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 a7a6 r1bqkbnr/1p1p1ppp/p1n1p3/8/2B1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Pin Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bb4 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 f8b4 r1bqk1nr/pp1p1ppp/2n1p3/8/1bB1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Scheveningen Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 d7d6 f1c4 e7e6 r1bqkbnr/pp3ppp/2npp3/8/2B1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Sozin Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 e6 6. Nf3 d6 7. O-O a6 8. Qe2 b5 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 f1c4 e7e6 g1f3 d7d6 e1g1 a7a6 d1e2 b7b5 r1bqkbnr/5ppp/p1npp3/1p6/2B1P3/2N2N2/PP2QPPP/R1B2RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Taimanov Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 a6 6. Nf3 Ne7 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 e7e6 f1c4 a7a6 g1f3 g8e7 rnbqkb1r/1p1pnppp/p3p3/8/2B1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Alapin Formation 1. e4 c5 2. d4 cxd4 3. c3 Nf6 e2e4 c7c5 d2d4 c5d4 c2c3 g8f6 rnbqkb1r/pp1ppppp/5n2/8/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Dubois Variation 1. e4 c5 2. d4 cxd4 3. c3 d3 4. c4 e2e4 c7c5 d2d4 c5d4 c2c3 d4d3 c3c4 rnbqkbnr/pp1ppppp/8/8/2P1P3/3p4/PP3PPP/RNBQKBNR b KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Push Variation 1. e4 c5 2. d4 cxd4 3. c3 d3 e2e4 c7c5 d2d4 c5d4 c2c3 d4d3 rnbqkbnr/pp1ppppp/8/8/4P3/2Pp4/PP3PPP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Scandinavian Formation 1. e4 c5 2. d4 cxd4 3. c3 d5 e2e4 c7c5 d2d4 c5d4 c2c3 d7d5 rnbqkbnr/pp2pppp/8/3p4/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation 1. e4 c5 2. d4 cxd4 3. c3 Qa5 e2e4 c7c5 d2d4 c5d4 c2c3 d8a5 rnb1kbnr/pp1ppppp/8/q7/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit, Chicago Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 e6 6. Nf3 d6 7. O-O a6 8. Qe2 b5 9. Bb3 Ra7 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 f1c4 e7e6 g1f3 d7d6 e1g1 a7a6 d1e2 b7b5 c4b3 a8a7 2bqkbnr/r4ppp/p1npp3/1p6/4P3/1BN2N2/PP2QPPP/R1B2RK1 w k - +B21 Sicilian Defense: Smith-Morra Gambit, Danish Variation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nf3 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 g1f3 rnbqkbnr/pp1ppppp/8/8/4P3/2p2N2/PP3PPP/RNBQKB1R b KQkq - +B22 Sicilian Defense: Alapin Variation 1. e4 c5 2. c3 e2e4 c7c5 c2c3 rnbqkbnr/pp1ppppp/8/2p5/4P3/2P5/PP1P1PPP/RNBQKBNR b KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense 1. e4 c5 2. c3 d5 3. exd5 Qxd5 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 rnb1kbnr/pp2pppp/8/2pq4/8/2P5/PP1P1PPP/RNBQKBNR w KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 d2d4 c5d4 c3d4 b8c6 g1f3 c8g4 r3kbnr/pp2pppp/2n5/3q4/3P2b1/5N2/PP3PPP/RNBQKB1R w KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense, Endgame Variation 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Nc3 Bxf3 8. gxf3 Qxd4 9. Qxd4 Nxd4 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 d2d4 c5d4 c3d4 b8c6 g1f3 c8g4 b1c3 g4f3 g2f3 d5d4 d1d4 c6d4 r3kbnr/pp2pppp/8/8/3n4/2N2P2/PP3P1P/R1B1KB1R w KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense, Milner-Barry Attack 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 cxd4 6. cxd4 e5 7. Nc3 Bb4 8. Be2 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 d2d4 b8c6 g1f3 c5d4 c3d4 e7e5 b1c3 f8b4 f1e2 r1b1k1nr/pp3ppp/2n5/3qp3/1b1P4/2N2N2/PP2BPPP/R1BQK2R b KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 d2d4 g8f6 g1f3 c8g4 rn2kb1r/pp2pppp/5n2/2pq4/3P2b1/2P2N2/PP3PPP/RNBQKB1R w KQkq - +B22 Sicilian Defense: Alapin Variation, Smith-Morra Declined 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 d2d4 c5d4 rnbqkb1r/pp1ppppp/8/3nP3/3p4/2P5/PP3PPP/RNBQKBNR w KQkq - +B22 Sicilian Defense: Alapin Variation, Stoltz Attack 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3 e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 g1f3 b8c6 f1c4 d5b6 c4b3 r1bqkb1r/pp1ppppp/1nn5/2p1P3/8/1BP2N2/PP1P1PPP/RNBQK2R b KQkq - +B22 Sicilian Defense: Alapin Variation, Stoltz Attack, Ivanchuk Line 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3 c4 7. Bc2 Qc7 8. Qe2 g5 e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 g1f3 b8c6 f1c4 d5b6 c4b3 c5c4 b3c2 d8c7 d1e2 g7g5 r1b1kb1r/ppqppp1p/1nn5/4P1p1/2p5/2P2N2/PPBPQPPP/RNB1K2R w KQkq - +B22 Sicilian Defense: Heidenfeld Variation 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3 e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 g1f3 b8c6 b1a3 r1bqkb1r/pp1ppppp/2n5/2pnP3/8/N1P2N2/PP1P1PPP/R1BQKB1R b KQkq - +B22 Sicilian Defense: Smith-Morra Gambit Declined, Center Formation 1. e4 c5 2. c3 e5 3. d4 cxd4 e2e4 c7c5 c2c3 e7e5 d2d4 c5d4 rnbqkbnr/pp1p1ppp/8/4p3/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +B23 Sicilian Defense: Closed 1. e4 c5 2. Nc3 e2e4 c7c5 b1c3 rnbqkbnr/pp1ppppp/8/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - +B23 Sicilian Defense: Closed 1. e4 c5 2. Nc3 e6 e2e4 c7c5 b1c3 e7e6 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B23 Sicilian Defense: Closed 1. e4 c5 2. Nc3 e6 3. g3 e2e4 c7c5 b1c3 e7e6 g2g3 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq - +B23 Sicilian Defense: Closed, Chameleon Variation 1. e4 c5 2. Nc3 Nc6 3. Nge2 e2e4 c7c5 b1c3 b8c6 g1e2 r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPPNPPP/R1BQKB1R b KQkq - +B23 Sicilian Defense: Closed, Grob Attack 1. e4 c5 2. Nc3 Nc6 3. g4 e2e4 c7c5 b1c3 b8c6 g2g4 r1bqkbnr/pp1ppppp/2n5/2p5/4P1P1/2N5/PPPP1P1P/R1BQKBNR b KQkq - +B23 Sicilian Defense: Closed, Korchnoi Defense 1. e4 c5 2. Nc3 e6 3. g3 d5 e2e4 c7c5 b1c3 e7e6 g2g3 d7d5 rnbqkbnr/pp3ppp/4p3/2pp4/4P3/2N3P1/PPPP1P1P/R1BQKBNR w KQkq - +B23 Sicilian Defense: Closed, Traditional 1. e4 c5 2. Nc3 Nc6 e2e4 c7c5 b1c3 b8c6 r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B23 Sicilian Defense: Grand Prix Attack 1. e4 c5 2. Nc3 Nc6 3. f4 e2e4 c7c5 b1c3 b8c6 f2f4 r1bqkbnr/pp1ppppp/2n5/2p5/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +B23 Sicilian Defense: Grand Prix Attack, Schofman Variation 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. f5 e2e4 c7c5 b1c3 b8c6 f2f4 g7g6 g1f3 f8g7 f1c4 e7e6 f4f5 r1bqk1nr/pp1p1pbp/2n1p1p1/2p2P2/2B1P3/2N2N2/PPPP2PP/R1BQK2R b KQkq - +B24 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 r1bqkbnr/pp1ppp1p/2n3p1/2p5/4P3/2N3P1/PPPP1P1P/R1BQKBNR w KQkq - +B24 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 r1bqk1nr/pp1pppbp/2n3p1/2p5/4P3/2N3P1/PPPP1PBP/R1BQK1NR w KQkq - +B24 Sicilian Defense: Closed, Fianchetto Variation 1. e4 c5 2. Nc3 Nc6 3. g3 e2e4 c7c5 b1c3 b8c6 g2g3 r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq - +B24 Sicilian Defense: Closed, Smyslov Variation 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 e7e6 c1e3 c6d4 c3e2 r1bqk1nr/pp1p1pbp/4p1p1/2p5/3nP3/3PB1P1/PPP1NPBP/R2QK1NR b KQkq - +B25 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 r1bqk1nr/pp2ppbp/2np2p1/2p5/4P3/2NP2P1/PPP2PBP/R1BQK1NR w KQkq - +B25 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4 r1bqk1nr/pp2ppbp/2np2p1/2p5/4PP2/2NP2P1/PPP3BP/R1BQK1NR b KQkq - +B25 Sicilian Defense: Closed, Botvinnik Defense 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4 e7e5 r1bqk1nr/pp3pbp/2np2p1/2p1p3/4PP2/2NP2P1/PPP3BP/R1BQK1NR w KQkq - +B25 Sicilian Defense: Closed, Botvinnik Defense 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 g1e2 e7e5 r1bqk1nr/pp3pbp/2np2p1/2p1p3/4P3/2NP2P1/PPP1NPBP/R1BQK2R w KQkq - +B25 Sicilian Defense: Closed, Botvinnik Defense, Edge Variation 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 7. Nh3 Nge7 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4 e7e5 g1h3 g8e7 r1bqk2r/pp2npbp/2np2p1/2p1p3/4PP2/2NP2PN/PPP3BP/R1BQK2R w KQkq - +B26 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 c1e3 r1bqk1nr/pp2ppbp/2np2p1/2p5/4P3/2NPB1P1/PPP2PBP/R2QK1NR b KQkq - +B27 Modern Defense: Pterodactyl Variation 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B27 Pterodactyl Defense: Sicilian, Anhanguera 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Be3 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 c1e3 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N1BN2/PPP2PPP/R2QKB1R b KQkq - +B27 Pterodactyl Defense: Sicilian, Benoni Gambit 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. d5 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 d4d5 rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B27 Pterodactyl Defense: Sicilian, Pteranodon 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 b1c3 g7c3 b2c3 rnb1k1nr/pp1ppp1p/6p1/q1P5/4P3/2P2N2/P1P2PPP/R1BQKB1R b KQkq - +B27 Pterodactyl Defense: Sicilian, Rhamphorhynchus 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 b1c3 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B27 Pterodactyl Defense: Sicilian, Unpin 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Bd2 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 c1d2 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N2N2/PPPB1PPP/R2QKB1R b KQkq - +B27 Pterodactyl Defense: Western, Pterodactyl 1. e4 c5 2. Nf3 g6 3. c3 Bg7 4. d4 Qa5 e2e4 c7c5 g1f3 g7g6 c2c3 f8g7 d2d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2P2N2/PP3PPP/RNBQKB1R w KQkq - +B27 Pterodactyl Defense: Western, Rhamphorhynchus 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense 1. e4 c5 2. Nf3 e2e4 c7c5 g1f3 rnbqkbnr/pp1ppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +B27 Sicilian Defense: Acton Extension 1. e4 c5 2. Nf3 g6 3. c4 Bh6 e2e4 c7c5 g1f3 g7g6 c2c4 f8h6 rnbqk1nr/pp1ppp1p/6pb/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Brussels Gambit 1. e4 c5 2. Nf3 f5 e2e4 c7c5 g1f3 f7f5 rnbqkbnr/pp1pp1pp/8/2p2p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Bücker Variation 1. e4 c5 2. Nf3 h6 e2e4 c7c5 g1f3 h7h6 rnbqkbnr/pp1pppp1/7p/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Double-Dutch Gambit 1. e4 c5 2. Nf3 f5 3. exf5 Nh6 e2e4 c7c5 g1f3 f7f5 e4f5 g8h6 rnbqkb1r/pp1pp1pp/7n/2p2P2/8/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Frederico Variation 1. e4 c5 2. Nf3 g6 3. d4 f5 e2e4 c7c5 g1f3 g7g6 d2d4 f7f5 rnbqkbnr/pp1pp2p/6p1/2p2p2/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Hyperaccelerated Dragon 1. e4 c5 2. Nf3 g6 e2e4 c7c5 g1f3 g7g6 rnbqkbnr/pp1ppp1p/6p1/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Hyperaccelerated Fianchetto 1. e4 c5 2. Nf3 g6 3. d4 e2e4 c7c5 g1f3 g7g6 d2d4 rnbqkbnr/pp1ppp1p/6p1/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B27 Sicilian Defense: Hyperaccelerated Pterodactyl 1. e4 c5 2. Nf3 g6 3. d4 Bg7 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 Qxc3+ e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 b1c3 g7c3 b2c3 a5c3 rnb1k1nr/pp1ppp1p/6p1/2P5/4P3/2q2N2/P1P2PPP/R1BQKB1R w KQkq - +B27 Sicilian Defense: Jalalabad Variation 1. e4 c5 2. Nf3 e5 e2e4 c7c5 g1f3 e7e5 rnbqkbnr/pp1p1ppp/8/2p1p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Katalimov Variation 1. e4 c5 2. Nf3 b6 e2e4 c7c5 g1f3 b7b6 rnbqkbnr/p2ppppp/1p6/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Mongoose Variation 1. e4 c5 2. Nf3 Qa5 e2e4 c7c5 g1f3 d8a5 rnb1kbnr/pp1ppppp/8/q1p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Polish Gambit 1. e4 c5 2. Nf3 b5 e2e4 c7c5 g1f3 b7b5 rnbqkbnr/p2ppppp/8/1pp5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Quinteros Variation 1. e4 c5 2. Nf3 Qc7 e2e4 c7c5 g1f3 d8c7 rnb1kbnr/ppqppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation 1. e4 c5 2. Nf3 a6 e2e4 c7c5 g1f3 a7a6 rnbqkbnr/1p1ppppp/p7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Aronin System 1. e4 c5 2. Nf3 a6 3. Be2 e2e4 c7c5 g1f3 a7a6 f1e2 rnbqkbnr/1p1ppppp/p7/2p5/4P3/5N2/PPPPBPPP/RNBQK2R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Kieseritzky System 1. e4 c5 2. Nf3 a6 3. b3 e2e4 c7c5 g1f3 a7a6 b2b3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Maróczy Bind 1. e4 c5 2. Nf3 a6 3. c4 e2e4 c7c5 g1f3 a7a6 c2c4 rnbqkbnr/1p1ppppp/p7/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line 1. e4 c5 2. Nf3 a6 3. c4 e6 e2e4 c7c5 g1f3 a7a6 c2c4 e7e6 rnbqkbnr/1p1p1ppp/p3p3/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Maróczy Bind, Robatsch Line 1. e4 c5 2. Nf3 a6 3. c4 d6 e2e4 c7c5 g1f3 a7a6 c2c4 d7d6 rnbqkbnr/1p2pppp/p2p4/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System 1. e4 c5 2. Nf3 a6 3. d4 e2e4 c7c5 g1f3 a7a6 d2d4 rnbqkbnr/1p1ppppp/p7/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System, Cortlever Gambit 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Bc4 e2e4 c7c5 g1f3 a7a6 d2d4 c5d4 f1c4 rnbqkbnr/1p1ppppp/p7/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System, Smith-Morra Line 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. c3 e2e4 c7c5 g1f3 a7a6 d2d4 c5d4 c2c3 rnbqkbnr/1p1ppppp/p7/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System, Taimanov Line 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5 e2e4 c7c5 g1f3 a7a6 d2d4 c5d4 f3d4 e7e5 rnbqkbnr/1p1p1ppp/p7/4p3/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System, Zagorovsky Line 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Qxd4 e2e4 c7c5 g1f3 a7a6 d2d4 c5d4 d1d4 rnbqkbnr/1p1ppppp/p7/8/3QP3/5N2/PPP2PPP/RNB1KB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Quiet System 1. e4 c5 2. Nf3 a6 3. d3 e2e4 c7c5 g1f3 a7a6 d2d3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Réti System 1. e4 c5 2. Nf3 a6 3. g3 e2e4 c7c5 g1f3 a7a6 g2g3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/5NP1/PPPP1P1P/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System 1. e4 c5 2. Nf3 a6 3. c3 e2e4 c7c5 g1f3 a7a6 c2c3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line 1. e4 c5 2. Nf3 a6 3. c3 Nf6 e2e4 c7c5 g1f3 a7a6 c2c3 g8f6 rnbqkb1r/1p1ppppp/p4n2/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System, Gambit Line 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6 e2e4 c7c5 g1f3 a7a6 c2c3 d7d5 e4d5 g8f6 rnbqkb1r/1p2pppp/p4n2/2pP4/8/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System, Ljubojevic Line 1. e4 c5 2. Nf3 a6 3. c3 b5 e2e4 c7c5 g1f3 a7a6 c2c3 b7b5 rnbqkbnr/3ppppp/p7/1pp5/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line 1. e4 c5 2. Nf3 a6 3. c3 d6 e2e4 c7c5 g1f3 a7a6 c2c3 d7d6 rnbqkbnr/1p2pppp/p2p4/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Wing Gambit 1. e4 c5 2. Nf3 a6 3. b4 e2e4 c7c5 g1f3 a7a6 b2b4 rnbqkbnr/1p1ppppp/p7/2p5/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Yerevan System 1. e4 c5 2. Nf3 a6 3. Nc3 e2e4 c7c5 g1f3 a7a6 b1c3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +B29 Sicilian Defense: Nimzowitsch Variation 1. e4 c5 2. Nf3 Nf6 e2e4 c7c5 g1f3 g8f6 rnbqkb1r/pp1ppppp/5n2/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B29 Sicilian Defense: Nimzowitsch Variation, Advance Variation 1. e4 c5 2. Nf3 Nf6 3. e5 e2e4 c7c5 g1f3 g8f6 e4e5 rnbqkb1r/pp1ppppp/5n2/2p1P3/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - +B29 Sicilian Defense: Nimzowitsch Variation, Closed Variation 1. e4 c5 2. Nf3 Nf6 3. Nc3 e2e4 c7c5 g1f3 g8f6 b1c3 rnbqkb1r/pp1ppppp/5n2/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +B29 Sicilian Defense: Nimzowitsch Variation, Exchange Variation 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 Nxc3 e2e4 c7c5 g1f3 g8f6 e4e5 f6d5 b1c3 d5c3 rnbqkb1r/pp1ppppp/8/2p1P3/8/2n2N2/PPPP1PPP/R1BQKB1R w KQkq - +B29 Sicilian Defense: Nimzowitsch Variation, Main Line 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Nxd5 exd5 6. d4 Nc6 e2e4 c7c5 g1f3 g8f6 e4e5 f6d5 b1c3 e7e6 c3d5 e6d5 d2d4 b8c6 r1bqkb1r/pp1p1ppp/2n5/2ppP3/3P4/5N2/PPP2PPP/R1BQKB1R w KQkq - +B30 Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line 1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6 6. Nd2 Bg5 e2e4 c7c5 g1f3 b8c6 b1c3 e7e5 f1c4 f8e7 d2d3 d7d6 f3d2 e7g5 r1bqk1nr/pp3ppp/2np4/2p1p1b1/2B1P3/2NP4/PPPN1PPP/R1BQK2R w KQkq - +B30 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack 1. e4 c5 2. Nf3 Nc6 3. Bb5 e2e4 c7c5 g1f3 b8c6 f1b5 r1bqkbnr/pp1ppppp/2n5/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +B30 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit 1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4 e2e4 c7c5 g1f3 b8c6 f1b5 c6a5 b2b4 r1bqkbnr/pp1ppppp/8/nBp5/1P2P3/5N2/P1PP1PPP/RNBQK2R b KQkq - +B30 Sicilian Defense: Old Sicilian 1. e4 c5 2. Nf3 Nc6 e2e4 c7c5 g1f3 b8c6 r1bqkbnr/pp1ppppp/2n5/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B30 Sicilian Defense: Rossolimo Variation, Brooklyn Retreat Defense 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nb8 e2e4 c7c5 g1f3 b8c6 f1b5 c6b8 rnbqkbnr/pp1ppppp/8/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 r1bqkbnr/pp1ppp1p/2n3p1/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 e5 6. d4 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 c2c3 e7e5 d2d4 r1bqk1nr/pp1p1pbp/2n3p1/1Bp1p3/3PP3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Lutikov Gambit 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. d4 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 c2c3 g8f6 d2d4 r1bqk2r/pp1pppbp/2n2np1/1Bp5/3PP3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Qa4 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 c2c3 g8f6 d1a4 r1bqk2r/pp1pppbp/2n2np1/1Bp5/Q3P3/2P2N2/PP1P1PPP/RNB2RK1 b kq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Gurgenidze Variation 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. b4 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 f1e1 e7e5 b2b4 r1bqk1nr/pp1p1pbp/2n3p1/1Bp1p3/1P2P3/5N2/P1PP1PPP/RNBQR1K1 b kq - +B32 Sicilian Defense: Accelerated Dragon 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 r1bqkbnr/pp1ppp1p/2n3p1/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Flohr Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 d8c7 r1b1kbnr/ppqppppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Franco-Sicilian Variation 1. e4 c5 2. Nf3 Nc6 3. d4 e6 e2e4 c7c5 g1f3 b8c6 d2d4 e7e6 r1bqkbnr/pp1p1ppp/2n1p3/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Godiva Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 d8b6 r1b1kbnr/pp1ppppp/1qn5/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Kalashnikov Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 e7e5 d4b5 d7d6 r1bqkbnr/pp3ppp/2np4/1N2p3/4P3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Löwenthal Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 e7e5 r1bqkbnr/pp1p1ppp/2n5/4p3/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Nimzo-American Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 d7d5 r1bqkbnr/pp2pppp/2n5/3p4/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 a6 5. c4 e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 a7a6 c2c4 e7e5 r1bqkbnr/1p1p1ppp/p1n5/4p3/2PNP3/8/PP3PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Open 1. e4 c5 2. Nf3 Nc6 3. d4 e2e4 c7c5 g1f3 b8c6 d2d4 r1bqkbnr/pp1ppppp/2n5/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B32 Sicilian Defense: Open 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 r1bqkbnr/pp1ppppp/2n5/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Open 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 r1bqkbnr/pp1ppppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - +B33 Sicilian Defense: Four Knights Variation, Cobra Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bc5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 d4b5 f8c5 r1bqk2r/pp1p1ppp/2n1pn2/1Nb5/4P3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 r1bqkb1r/pp1p1ppp/2n2n2/4p3/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Bird Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 c8e6 r2qkb1r/1p3ppp/p1npbn2/4p1B1/4P3/N1N5/PPP2PPP/R2QKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Exchange Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4c6 r1bqkb1r/pp1p1ppp/2N2n2/4p3/4P3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Retreat Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4f3 r1bqkb1r/pp1p1ppp/2n2n2/4p3/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b3 r1bqkb1r/pp1p1ppp/2n2n2/4p3/4P3/1NN5/PPP2PPP/R1BQKB1R b KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 r1bqkb1r/5ppp/p1np1n2/1p2p1B1/4P3/N1N5/PPP2PPP/R2QKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 g5f6 g7f6 c3d5 f6f5 r1bqkb1r/5p1p/p1np4/1p1Npp2/4P3/N7/PPP2PPP/R2QKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 c3d5 r1bqkb1r/5ppp/p1np1n2/1p1Np1B1/4P3/N7/PPP2PPP/R2QKB1R b KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 Bg7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 g5f6 g7f6 c3d5 f8g7 r1bqk2r/5pbp/p1np1p2/1p1Np3/4P3/N7/PPP2PPP/R2QKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Peresypkin's Sacrifice 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bxb5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 g5f6 g7f6 c3d5 f6f5 f1b5 r1bqkb1r/5p1p/p1np4/1B1Npp2/4P3/N7/PPP2PPP/R2QK2R b KQkq - +B33 Sicilian Defense: Open 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 r1bqkb1r/pp1ppppp/2n2n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B34 Sicilian Defense: Accelerated Dragon, Exchange Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 d4c6 r1bqkbnr/pp1ppp1p/2N3p1/8/4P3/8/PPP2PPP/RNBQKB1R b KQkq - +B34 Sicilian Defense: Accelerated Dragon, Modern Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 r1bqkbnr/pp1ppp1p/2n3p1/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B35 Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1c4 r1bqk2r/pp1pppbp/2n2np1/8/2BNP3/2N1B3/PPP2PPP/R2QK2R b KQkq - +B35 Sicilian Defense: Dragon Variation, Modern Bc4 Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 d6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1c4 d7d6 r1bqk2r/pp2ppbp/2np1np1/8/2BNP3/2N1B3/PPP2PPP/R2QK2R w KQkq - +B36 Sicilian Defense: Accelerated Dragon, Maróczy Bind 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 r1bqkbnr/pp1ppp1p/2n3p1/8/2PNP3/8/PP3PPP/RNBQKB1R b KQkq - +B36 Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 g8f6 b1c3 c6d4 d1d4 d7d6 r1bqkb1r/pp2pp1p/3p1np1/8/2PQP3/2N5/PP3PPP/R1B1KB1R w KQkq - +B37 Sicilian Defense: Accelerated Fianchetto, Maróczy Bind 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 r1bqk1nr/pp1pppbp/2n3p1/8/2PNP3/8/PP3PPP/RNBQKB1R w KQkq - +B37 Sicilian Defense: Accelerated Fianchetto, Simagin Variation 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc2 Bg7 6. e4 d6 7. Be2 Nh6 g1f3 c7c5 c2c4 g7g6 d2d4 c5d4 f3d4 b8c6 d4c2 f8g7 e2e4 d7d6 f1e2 g8h6 r1bqk2r/pp2ppbp/2np2pn/8/2P1P3/8/PPN1BPPP/RNBQK2R w KQkq - +B38 Sicilian Defense: Accelerated Dragon, Maróczy Bind 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 c1e3 r1bqk1nr/pp1pppbp/2n3p1/8/2PNP3/4B3/PP3PPP/RN1QKB1R b KQkq - +B39 Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 c1e3 g8f6 b1c3 f6g4 r1bqk2r/pp1pppbp/2n3p1/8/2PNP1n1/2N1B3/PP3PPP/R2QKB1R w KQkq - +B40 Sicilian Defense: Alapin Variation, Sherzer Variation 1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 Nc6 e2e4 c7c5 g1f3 e7e6 c2c3 g8f6 e4e5 f6d5 d2d4 b8c6 r1bqkb1r/pp1p1ppp/2n1p3/2pnP3/3P4/2P2N2/PP3PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: Delayed Alapin Variation 1. e4 c5 2. Nf3 e6 3. c3 e2e4 c7c5 g1f3 e7e6 c2c3 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - +B40 Sicilian Defense: Four Knights Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 r1bqkb1r/pp1p1ppp/2n1pn2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B40 Sicilian Defense: Four Knights Variation, Exchange Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 d4c6 r1bqkb1r/pp1p1ppp/2N1pn2/8/4P3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B40 Sicilian Defense: French Variation 1. e4 c5 2. Nf3 e6 e2e4 c7c5 g1f3 e7e6 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: French Variation, Normal 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 rnbqkb1r/pp1p1ppp/4pn2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: French Variation, Open 1. e4 c5 2. Nf3 e6 3. d4 cxd4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 rnbqkbnr/pp1p1ppp/4p3/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: French Variation, Westerinen Attack 1. e4 c5 2. Nf3 e6 3. b3 e2e4 c7c5 g1f3 e7e6 b2b3 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq - +B40 Sicilian Defense: Gaw-Paw Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d8b6 rnb1kb1r/pp1p1ppp/1q2pn2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B40 Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 b5 5. d4 cxd4 6. Nxd4 e2e4 c7c5 g1f3 e7e6 b1c3 a7a6 g2g3 b7b5 d2d4 c5d4 f3d4 rnbqkbnr/3p1ppp/p3p3/1p6/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B40 Sicilian Defense: Kramnik Variation 1. e4 c5 2. Nf3 e6 3. c4 e2e4 c7c5 g1f3 e7e6 c2c4 rnbqkbnr/pp1p1ppp/4p3/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +B40 Sicilian Defense: Kveinis Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 d8b6 rnb1kbnr/pp1p1ppp/1q2p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: Marshall Counterattack 1. e4 c5 2. Nf3 e6 3. d4 d5 e2e4 c7c5 g1f3 e7e6 d2d4 d7d5 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: Paulsen-Basman Defense 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 f8c5 rnbqk1nr/pp1p1ppp/4p3/2b5/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: Pin Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4 rnbqk2r/pp1p1ppp/4pn2/8/1b1NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B40 Sicilian Defense: Pin Variation, Jaffe Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 e5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4 f1d3 e6e5 rnbqk2r/pp1p1ppp/5n2/4p3/1b1NP3/2NB4/PPP2PPP/R1BQK2R w KQkq - +B40 Sicilian Defense: Pin Variation, Koch Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4 e4e5 rnbqk2r/pp1p1ppp/4pn2/4P3/1b1N4/2N5/PPP2PPP/R1BQKB1R b KQkq - +B40 Sicilian Defense: Smith-Morra Gambit Deferred 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 c2c3 rnbqkbnr/pp1p1ppp/4p3/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B40 Sicilian Defense: Wing Gambit Deferred 1. e4 c5 2. Nf3 e6 3. b4 e2e4 c7c5 g1f3 e7e6 b2b4 rnbqkbnr/pp1p1ppp/4p3/2p5/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +B41 Sicilian Defense: Kan Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B41 Sicilian Defense: Kan Variation, Maróczy Bind, Bronstein Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 g8f6 b1c3 f8b4 f1d3 b8c6 r1bqk2r/1p1p1ppp/p1n1pn2/8/1bPNP3/2NB4/PP3PPP/R1BQK2R w KQkq - +B41 Sicilian Defense: Kan Variation, Maróczy Bind, Bronstein Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Bc2 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 g8f6 b1c3 f8b4 f1d3 b8c6 d3c2 r1bqk2r/1p1p1ppp/p1n1pn2/8/1bPNP3/2N5/PPB2PPP/R1BQK2R b KQkq - +B41 Sicilian Defense: Kan Variation, Maróczy Bind, Hedgehog Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 g6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 g7g6 rnbqkbnr/1p1p1p1p/p3p1p1/8/2PNP3/8/PP3PPP/RNBQKB1R w KQkq - +B41 Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 rnbqkbnr/1p1p1ppp/p3p3/8/2PNP3/8/PP3PPP/RNBQKB1R b KQkq - +B42 Sicilian Defense: Kan Variation, Gipslis Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O d6 7. c4 g6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 g8f6 e1g1 d7d6 c2c4 g7g6 rnbqkb1r/1p3p1p/p2ppnp1/8/2PNP3/3B4/PP3PPP/RNBQ1RK1 w kq - +B42 Sicilian Defense: Kan Variation, Modern Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/3B4/PPP2PPP/RNBQK2R b KQkq - +B42 Sicilian Defense: Kan Variation, Polugaevsky Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 f8c5 rnbqk1nr/1p1p1ppp/p3p3/2b5/3NP3/3B4/PPP2PPP/RNBQK2R w KQkq - +B42 Sicilian Defense: Kan Variation, Swiss Cheese Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 g6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 g7g6 rnbqkbnr/1p1p1p1p/p3p1p1/8/3NP3/3B4/PPP2PPP/RNBQK2R w KQkq - +B43 Sicilian Defense: Kan Variation, Knight Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3 rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B43 Sicilian Defense: Kan Variation, Wing Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3 b7b5 rnbqkbnr/3p1ppp/p3p3/1p6/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B43 Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Qg4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3 b7b5 f1d3 d8b6 c1e3 f8c5 d1g4 rnb1k1nr/3p1ppp/pq2p3/1pb5/3NP1Q1/2NBB3/PPP2PPP/R3K2R b KQkq - +B43 Sicilian Defense: Kan Variation, Wing Attack, Spraggett Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nf3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3 b7b5 f1d3 d8b6 d4f3 rnb1kbnr/3p1ppp/pq2p3/1p6/4P3/2NB1N2/PPP2PPP/R1BQK2R b KQkq - +B44 Sicilian Defense: Taimanov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 r1bqkbnr/pp1p1ppp/2n1p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B44 Sicilian Defense: Taimanov Variation, Gary Gambit 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 d5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5 d7d6 c2c4 g8f6 b1c3 a7a6 b5a3 d6d5 r1bqkb1r/1p3ppp/p1n1pn2/3p4/2P1P3/N1N5/PP3PPP/R1BQKB1R w KQkq - +B44 Sicilian Defense: Taimanov Variation, Modern Line 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 O-O 10. O-O b6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5 d7d6 c2c4 g8f6 b1c3 a7a6 b5a3 f8e7 f1e2 e8g8 e1g1 b7b6 r1bq1rk1/4bppp/ppnppn2/8/2P1P3/N1N5/PP2BPPP/R1BQ1RK1 w - - +B44 Sicilian Defense: Taimanov Variation, Szén Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5 r1bqkbnr/pp1p1ppp/2n1p3/1N6/4P3/8/PPP2PPP/RNBQKB1R b KQkq - +B45 Sicilian Defense: Taimanov Variation, American Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+ e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 g8f6 d4b5 f8b4 b5d6 r1bqk2r/pp1p1ppp/2nNpn2/8/1b2P3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B45 Sicilian Defense: Taimanov Variation, Normal Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 r1bqkbnr/pp1p1ppp/2n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B46 Sicilian Defense: Taimanov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 a7a6 r1bqkbnr/1p1p1ppp/p1n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B47 Sicilian Defense: Taimanov Variation, Bastrikov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 r1b1kbnr/ppqp1ppp/2n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B47 Sicilian Defense: Taimanov Variation, Bastrikov Variation, Ponomariov Gambit 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Ndb5 Qb8 7. Be3 a6 8. Bb6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 d4b5 c7b8 c1e3 a7a6 e3b6 rqb1kbnr/1p1p1ppp/pBn1p3/1N6/4P3/2N5/PPP2PPP/R2QKB1R b KQkq - +B48 Sicilian Defense: Taimanov Variation, Bastrikov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 r1b1kbnr/ppqp1ppp/2n1p3/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq - +B48 Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. f3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 a7a6 f2f3 r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1BP2/PPP3PP/R2QKB1R b KQkq - +B48 Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 a7a6 d1d2 r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1B3/PPPQ1PPP/R3KB1R b KQkq - +B49 Sicilian Defense: Taimanov Variation, Bastrikov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 a7a6 f1e2 r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1B3/PPP1BPPP/R2QK2R b KQkq - +B50 Sicilian Defense 1. e4 c5 2. Nf3 d6 3. d4 e2e4 c7c5 g1f3 d7d6 d2d4 rnbqkbnr/pp2pppp/3p4/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B50 Sicilian Defense 1. e4 c5 2. Nf3 d6 3. d4 cxd4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 rnbqkbnr/pp2pppp/3p4/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B50 Sicilian Defense: Delayed Alapin 1. e4 c5 2. Nf3 d6 3. c3 e2e4 c7c5 g1f3 d7d6 c2c3 rnbqkbnr/pp2pppp/3p4/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - +B50 Sicilian Defense: Delayed Alapin, Basman-Palatnik Double Gambit 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 Nxe4 7. d5 Qa5+ 8. Nc3 Nxc3 9. bxc3 e2e4 c7c5 g1f3 d7d6 c2c3 g8f6 f1e2 b8c6 d2d4 c5d4 c3d4 f6e4 d4d5 d8a5 b1c3 e4c3 b2c3 r1b1kb1r/pp2pppp/2np4/q2P4/8/2P2N2/P3BPPP/R1BQK2R b KQkq - +B50 Sicilian Defense: Delayed Alapin, Basman-Palatnik Gambit 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 Nxe4 e2e4 c7c5 g1f3 d7d6 c2c3 g8f6 f1e2 b8c6 d2d4 c5d4 c3d4 f6e4 r1bqkb1r/pp2pppp/2np4/8/3Pn3/5N2/PP2BPPP/RNBQK2R w KQkq - +B50 Sicilian Defense: Kotov Gambit 1. e4 c5 2. Nf3 d6 3. g3 b5 e2e4 c7c5 g1f3 d7d6 g2g3 b7b5 rnbqkbnr/p3pppp/3p4/1pp5/4P3/5NP1/PPPP1P1P/RNBQKB1R w KQkq - +B50 Sicilian Defense: Modern Variations 1. e4 c5 2. Nf3 d6 e2e4 c7c5 g1f3 d7d6 rnbqkbnr/pp2pppp/3p4/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B50 Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order 1. e4 c5 2. Nf3 d6 3. d4 Nf6 e2e4 c7c5 g1f3 d7d6 d2d4 g8f6 rnbqkb1r/pp2pppp/3p1n2/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B50 Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order Accepted 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. dxc5 Nxe4 e2e4 c7c5 g1f3 d7d6 d2d4 g8f6 d4c5 f6e4 rnbqkb1r/pp2pppp/3p4/2P5/4n3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B50 Sicilian Defense: Modern Variations, Tartakower 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. c3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 c2c3 rnbqkbnr/pp2pppp/3p4/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B50 Sicilian Defense: Wing Gambit, Deferred Variation 1. e4 c5 2. Nf3 d6 3. b4 e2e4 c7c5 g1f3 d7d6 b2b4 rnbqkbnr/pp2pppp/3p4/2p5/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +B51 Sicilian Defense: Canal Attack, Dorfman Gambit 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Qe2 g6 6. e5 e2e4 c7c5 g1f3 d7d6 f1b5 b8c6 e1g1 c8d7 d1e2 g7g6 e4e5 r2qkbnr/pp1bpp1p/2np2p1/1Bp1P3/8/5N2/PPPPQPPP/RNB2RK1 b kq - +B51 Sicilian Defense: Canal Attack, Moscow Gambit 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Bxc6 Bxc6 8. d4 Bxe4 9. Bg5 e2e4 c7c5 g1f3 d7d6 f1b5 b8c6 e1g1 c8d7 c2c3 g8f6 f1e1 a7a6 b5c6 d7c6 d2d4 c6e4 c1g5 r2qkb1r/1p2pppp/p2p1n2/2p3B1/3Pb3/2P2N2/PP3PPP/RN1QR1K1 b kq - +B51 Sicilian Defense: Moscow Variation 1. e4 c5 2. Nf3 d6 3. Bb5+ e2e4 c7c5 g1f3 d7d6 f1b5 rnbqkbnr/pp2pppp/3p4/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +B52 Sicilian Defense: Canal Attack, Haag Gambit 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. c3 Nf6 7. d4 e2e4 c7c5 g1f3 d7d6 f1b5 c8d7 b5d7 d8d7 e1g1 b8c6 c2c3 g8f6 d2d4 r3kb1r/pp1qpppp/2np1n2/2p5/3PP3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +B52 Sicilian Defense: Canal Attack, Main Line 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 e2e4 c7c5 g1f3 d7d6 f1b5 c8d7 rn1qkbnr/pp1bpppp/3p4/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +B52 Sicilian Defense: Moscow Variation, Sokolsky Variation 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 e2e4 c7c5 g1f3 d7d6 f1b5 c8d7 b5d7 d8d7 c2c4 rn2kbnr/pp1qpppp/3p4/2p5/2P1P3/5N2/PP1P1PPP/RNBQK2R b KQkq - +B53 Sicilian Defense: Chekhover Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 d1d4 rnbqkbnr/pp2pppp/3p4/8/3QP3/5N2/PPP2PPP/RNB1KB1R b KQkq - +B53 Sicilian Defense: Chekhover Variation, Zaitsev Defense 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 d1d4 b8c6 f1b5 d8d7 r1b1kbnr/pp1qpppp/2np4/1B6/3QP3/5N2/PPP2PPP/RNB1K2R w KQkq - +B54 Sicilian Defense: Accelerated Dragon 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g7g6 rnbqkbnr/pp2pp1p/3p2p1/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B54 Sicilian Defense: Modern Variations, Ginsberg Gambit 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bc4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 f1c4 rnbqkb1r/pp2pppp/3p1n2/8/2BNP3/8/PPP2PPP/RNBQK2R b KQkq - +B54 Sicilian Defense: Modern Variations, Main Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 rnbqkb1r/pp2pppp/3p1n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B54 Sicilian Defense: Prins Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 f2f3 rnbqkb1r/pp2pppp/3p1n2/8/3NP3/5P2/PPP3PP/RNBQKB1R b KQkq - +B55 Sicilian Defense: Prins Variation, Venice Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+ e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 f2f3 e7e5 f1b5 rnbqkb1r/pp3ppp/3p1n2/1B2p3/3NP3/5P2/PPP3PP/RNBQK2R b KQkq - +B56 Sicilian Defense: Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B56 Sicilian Defense: Classical Variation, Fianchetto Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 g2g3 r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B56 Sicilian Defense: Kupreichik Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 c8d7 rn1qkb1r/pp1bpppp/3p1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B56 Sicilian Defense: Spielmann Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Nde2 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 d4e2 r1bqkb1r/pp2pppp/2np1n2/8/4P3/2N5/PPP1NPPP/R1BQKB1R b KQkq - +B56 Sicilian Defense: Venice Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Bb5+ e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 f1b5 rnbqkb1r/pp3ppp/3p1n2/1B2p3/3NP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B56 Sicilian Defense: Yates Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bd3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1d3 r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2NB4/PPP2PPP/R1BQK2R b KQkq - +B57 Sicilian Defense: Classical Variation, Anti-Sozin Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 d8b6 r1b1kb1r/pp2pppp/1qnp1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R w KQkq - +B57 Sicilian Defense: Magnus Smith Trap 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 g6 7. Nxc6 bxc6 8. e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 g7g6 d4c6 b7c6 e4e5 r1bqkb1r/p3pp1p/2pp1np1/4P3/2B5/2N5/PPP2PPP/R1BQK2R b KQkq - +B57 Sicilian Defense: Sozin, not Scheveningen 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 r1bqkb1r/pp2pppp/2np1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B58 Sicilian Defense: Boleslavsky Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1e2 e7e5 r1bqkb1r/pp3ppp/2np1n2/4p3/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq - +B58 Sicilian Defense: Boleslavsky Variation, Louma Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nxc6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 e7e5 d4c6 r1bqkb1r/pp3ppp/2Np1n2/4p3/4P3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B58 Sicilian Defense: Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1e2 r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B58 Sicilian Defense: Classical Variation, Dragon Transfer 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 Nxd4 7. Qxd4 g6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1e2 c6d4 d1d4 g7g6 r1bqkb1r/pp2pp1p/3p1np1/8/3QP3/2N5/PPP1BPPP/R1B1K2R w KQkq - +B59 Sicilian Defense: Boleslavsky Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 e7e5 d4b3 r1bqkb1r/pp3ppp/2np1n2/4p3/4P3/1NN5/PPP1BPPP/R1BQK2R b KQkq - +B60 Sicilian Defense: Richter-Rauzer Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 r1bqkb1r/pp2pppp/2np1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R b KQkq - +B60 Sicilian Defense: Richter-Rauzer Variation, Dragon Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 g6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 g7g6 r1bqkb1r/pp2pp1p/2np1np1/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq - +B60 Sicilian Defense: Richter-Rauzer Variation, Modern Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 c8d7 r2qkb1r/pp1bpppp/2np1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq - +B61 Sicilian Defense: Richter-Rauzer Variation, Modern Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Bd7 7. Qd2 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 c8d7 d1d2 r2qkb1r/pp1bpppp/2np1n2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R b KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d3 r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2NQ4/PPP2PPP/R3KB1R b KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation, Exchange Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Nxc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d4c6 r1bqkb1r/pp3ppp/2Nppn2/6B1/4P3/2N5/PPP2PPP/R2QKB1R b KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation, Podebrady Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Nb3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d4b3 r1bqkb1r/pp3ppp/2nppn2/6B1/4P3/1NN5/PPP2PPP/R2QKB1R b KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation, Vitolins Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 f1b5 r1bqkb1r/pp3ppp/2nppn2/1B4B1/3NP3/2N5/PPP2PPP/R2QK2R b KQkq - +B63 Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 r1bqk2r/pp2bppp/2nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq - +B63 Sicilian Defense: Richter-Rauzer Variation, Classical Variation, Kantscher Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O Nxd4 9. Qxd4 a6 10. f4 b5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 c6d4 d2d4 a7a6 f2f4 b7b5 r1bqk2r/4bppp/p2ppn2/1p4B1/3QPP2/2N5/PPP3PP/2KR1B1R w kq - +B63 Sicilian Defense: Richter-Rauzer Variation, Ivanov Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Qb6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 d8b6 r1b1kb1r/pp3ppp/1qnppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq - +B63 Sicilian Defense: Richter-Rauzer Variation, Traditional Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R b KQkq - +B64 Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 e6e5 r1bq1rk1/pp2bppp/2np1n2/4p1B1/3NPP2/2N5/PPPQ2PP/2KR1B1R w - - +B64 Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 r1bq1rk1/pp2bppp/2nppn2/6B1/3NPP2/2N5/PPPQ2PP/2KR1B1R b - - +B65 Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 10. Qxd4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 c6d4 d2d4 r1bq1rk1/pp2bppp/3ppn2/6B1/3QPP2/2N5/PPP3PP/2KR1B1R b - - +B65 Sicilian Defense: Richter-Rauzer Variation, Rauzer Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 c6d4 r1bq1rk1/pp2bppp/3ppn2/6B1/3nPP2/2N5/PPPQ2PP/2KR1B1R w - - +B66 Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 a7a6 r1bqkb1r/1p3ppp/p1nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq - +B67 Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7 r2qkb1r/1p1b1ppp/p1nppn2/6B1/3NP3/2N5/PPPQ1PPP/2KR1B1R w kq - +B68 Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7 f2f4 f8e7 r2qk2r/1p1bbppp/p1nppn2/6B1/3NPP2/2N5/PPPQ2PP/2KR1B1R w kq - +B69 Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7 f2f4 f8e7 d4f3 b7b5 g5f6 r2qk2r/3bbppp/p1nppB2/1p6/4PP2/2N2N2/PPPQ2PP/2KR1B1R b kq - +B70 Sicilian Defense: Dragon Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B70 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B70 Sicilian Defense: Dragon Variation, Fianchetto Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 g2g3 rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B71 Sicilian Defense: Dragon Variation, Levenfish Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f2f4 rnbqkb1r/pp2pp1p/3p1np1/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq - +B71 Sicilian Defense: Dragon Variation, Levenfish Variation, Main Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f2f4 b8d7 r1bqkb1r/pp1npp1p/3p1np1/8/3NPP2/2N5/PPP3PP/R1BQKB1R w KQkq - +B72 Sicilian Defense: Dragon Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 rnbqk2r/pp2ppbp/3p1np1/8/3NP3/2N1B3/PPP1BPPP/R2QK2R b KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPP1BPPP/R2QK2R w KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Nb3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 d4b3 r1bqk2r/pp2ppbp/2np1np1/8/4P3/1NN1B3/PPP1BPPP/R2QK2R b KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation, Amsterdam Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Qd2 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 g7g6 c1e3 f8g7 d1d2 r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/R3K2R b KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation, Grigoriev Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Qd2 O-O 9. O-O-O e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 g7g6 c1e3 f8g7 d1d2 e8g8 e1c1 r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/2KR3R b - - +B73 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 b8c6 c1e3 r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPP1BPPP/R2Q1RK1 b kq - +B73 Sicilian Defense: Dragon Variation, Classical Variation, Battery Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Qd2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d1d2 r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/R4RK1 b - - +B73 Sicilian Defense: Dragon Variation, Classical Variation, Zollner Gambit 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Be2 Nf6 7. Nc3 O-O 8. O-O d6 9. f4 Qb6 10. e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c1e3 f8g7 f1e2 g8f6 b1c3 e8g8 e1g1 d7d6 f2f4 d8b6 e4e5 r1b2rk1/pp2ppbp/1qnp1np1/4P3/3N1P2/2N1B3/PPP1B1PP/R2Q1RK1 b - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Alekhine Line 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d6 9. Nb3 a5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1e2 e8g8 e1g1 d7d6 d4b3 a7a5 r1bq1rk1/1p2ppbp/2np1np1/p7/4P3/1NN1B3/PPP1BPPP/R2Q1RK1 w - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Bernard Defense 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Bd3 Bxd3 13. cxd3 d5 e2e4 c7c5 g1f3 g7g6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d4b3 c8e6 f2f4 c6a5 f4f5 e6c4 e2d3 c4d3 c2d3 d6d5 r2q1rk1/pp2ppbp/5np1/n2p1P2/4P3/1NNPB3/PP4PP/R2Q1RK1 w - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Maróczy Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 Be6 10. f4 Na5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d4b3 c8e6 f2f4 c6a5 r2q1rk1/pp2ppbp/3pbnp1/n7/4PP2/1NN1B3/PPP1B1PP/R2Q1RK1 w - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Normal Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d4b3 r1bq1rk1/pp2ppbp/2np1np1/8/4P3/1NN1B3/PPP1BPPP/R2Q1RK1 b - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Spielmann Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. Nb3 d6 9. O-O Be6 10. f4 Na5 11. f5 Bc4 12. Bd3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1e2 e8g8 d4b3 d7d6 e1g1 c8e6 f2f4 c6a5 f4f5 e6c4 e2d3 r2q1rk1/pp2ppbp/3p1np1/n4P2/2b1P3/1NNBB3/PPP3PP/R2Q1RK1 b - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Stockholm Attack 1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Be3 Nf6 8. Be2 O-O 9. Nb3 Be6 10. O-O Na5 11. f5 Bc4 12. Nxa5 Bxe2 13. Qxe2 Qxa5 14. g4 e2e4 c7c5 b1c3 d7d6 f2f4 b8c6 g1f3 g7g6 d2d4 c5d4 f3d4 f8g7 c1e3 g8f6 f1e2 e8g8 d4b3 c8e6 e1g1 c6a5 f4f5 e6c4 b3a5 c4e2 d1e2 d8a5 g2g4 r4rk1/pp2ppbp/3p1np1/q4P2/4P1P1/2N1B3/PPP1Q2P/R4RK1 b - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Tartakower Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 Be6 10. f4 Qc8 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d4b3 c8e6 f2f4 d8c8 r1q2rk1/pp2ppbp/2npbnp1/8/4PP2/1NN1B3/PPP1B1PP/R2Q1RK1 w - - +B75 Sicilian Defense: Dragon Variation, Yugoslav Attack, Belezky Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 b8c6 r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1BP2/PPP3PP/R2QKB1R w KQkq - +B75 Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 rnbqk2r/pp2ppbp/3p1np1/8/3NP3/2N1BP2/PPP3PP/R2QKB1R b KQkq - +B76 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 rnbq1rk1/pp2ppbp/3p1np1/8/3NP3/2N1BP2/PPP3PP/R2QKB1R w KQ - +B76 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1BP2/PPPQ2PP/R3KB1R w KQ - +B76 Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. O-O-O e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 b8c6 d1d2 e8g8 e1c1 r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1BP2/PPPQ2PP/2KR1B1R b - - +B76 Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. g4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 g2g4 r1bq1rk1/pp2ppbp/2np1np1/8/3NP1P1/2N1BP2/PPPQ3P/R3KB1R b KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 r2q1rk1/pp1bppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack, Byrne Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 a5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 a7a5 r1bq1rk1/1p2ppbp/2np1np1/p7/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack, Czerniak Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Nxd4 10. Bxd4 Be6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 b8c6 d1d2 e8g8 f1c4 c6d4 e3d4 c8e6 r2q1rk1/pp2ppbp/3pbnp1/8/2BBP3/2N2P2/PPPQ2PP/R3K2R w KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 r1bq1rk1/pp2ppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R b KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack, Sosonko Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Nd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 b8c6 d1d2 e8g8 f1c4 f6d7 r1bq1rk1/pp1nppbp/2np2p1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ - +B78 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 e1c1 r2q1rk1/pp1bppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/2KR3R b - - +B78 Sicilian Defense: Dragon Variation, Yugoslav Attack, Old Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Rc8 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 e1c1 a8c8 2rq1rk1/pp1bppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/2KR3R w - - +B79 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. h4 Qa5 11. O-O-O Rfc8 12. Bb3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 h2h4 d8a5 e1c1 f8c8 c4b3 r1r3k1/pp1bppbp/2np1np1/q7/3NP2P/1BN1BP2/PPPQ2P1/2KR3R b - - +B79 Sicilian Defense: Dragon Variation, Yugoslav Attack, Soltis Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Qa5 11. h4 Rfc8 12. Bb3 h5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 e1c1 d8a5 h2h4 f8c8 c4b3 h7h5 r1r3k1/pp1bppb1/2np1np1/q6p/3NP2P/1BN1BP2/PPPQ2P1/2KR3R w - - +B80 Sicilian Defense: Scheveningen Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B80 Sicilian Defense: Scheveningen Variation, English Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Qd2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 e7e6 d1d2 rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N1B3/PPPQ1PPP/R3KB1R b KQkq - +B80 Sicilian Defense: Scheveningen Variation, Fianchetto Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 g2g3 rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B80 Sicilian Defense: Scheveningen Variation, Vitolins Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5+ e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1b5 rnbqkb1r/pp3ppp/3ppn2/1B6/3NP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B81 Sicilian Defense: Scheveningen Variation, Keres Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 g2g4 rnbqkb1r/pp3ppp/3ppn2/8/3NP1P1/2N5/PPP2P1P/R1BQKB1R b KQkq - +B82 Sicilian Defense: Scheveningen Variation, Matanovic Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f2f4 rnbqkb1r/pp3ppp/3ppn2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq - +B82 Sicilian Defense: Scheveningen Variation, Tal Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 Nc6 7. Be3 Be7 8. Qf3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f2f4 b8c6 c1e3 f8e7 d1f3 r1bqk2r/pp2bppp/2nppn2/8/3NPP2/2N1BQ2/PPP3PP/R3KB1R b KQkq - +B83 Sicilian Defense: Scheveningen Variation, Classical Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B83 Sicilian Defense: Scheveningen Variation, Modern Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d7d6 f1e2 g8f6 r1bqkb1r/pp3ppp/2nppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq - +B83 Sicilian Defense: Scheveningen Variation, Modern Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O O-O 8. f4 Nc6 9. Be3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 f8e7 e1g1 e8g8 f2f4 b8c6 c1e3 r1bq1rk1/pp2bppp/2nppn2/8/3NPP2/2N1B3/PPP1B1PP/R2Q1RK1 b - - +B83 Sicilian Defense: Scheveningen Variation, Modern Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O O-O 8. f4 Nc6 9. Be3 Bd7 10. Nb3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 f8e7 e1g1 e8g8 f2f4 b8c6 c1e3 c8d7 d4b3 r2q1rk1/pp1bbppp/2nppn2/8/4PP2/1NN1B3/PPP1B1PP/R2Q1RK1 b - - +B84 Sicilian Defense: Najdorf Variation, Scheveningen Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Nbd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e6 e1g1 b8d7 r1bqkb1r/1p1n1ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQ1RK1 w kq - +B84 Sicilian Defense: Scheveningen Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e6 rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq - +B84 Sicilian Defense: Scheveningen Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Qc7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e6 e1g1 d8c7 rnb1kb1r/1pq2ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQ1RK1 w kq - +B85 Sicilian Defense: Scheveningen Variation, Classical Main Line 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Be7 9. f4 d6 10. Qe1 O-O e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 f1e2 a7a6 e1g1 g8f6 c1e3 f8e7 f2f4 d7d6 d1e1 e8g8 r1b2rk1/1pq1bppp/p1nppn2/8/3NPP2/2N1B3/PPP1B1PP/R3QRK1 w - - +B85 Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Be2 Qc7 8. O-O Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f2f4 e7e6 f1e2 d8c7 e1g1 b8c6 r1b1kb1r/1pq2ppp/p1nppn2/8/3NPP2/2N5/PPP1B1PP/R1BQ1RK1 w kq - +B85 Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 d6 9. f4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 f1e2 a7a6 e1g1 g8f6 c1e3 d7d6 f2f4 r1b1kb1r/1pq2ppp/p1nppn2/8/3NPP2/2N1B3/PPP1B1PP/R2Q1RK1 b kq - +B85 Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Kh1 Be7 9. f4 d6 10. a4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 f1e2 a7a6 e1g1 g8f6 g1h1 f8e7 f2f4 d7d6 a2a4 r1b1k2r/1pq1bppp/p1nppn2/8/P2NPP2/2N5/1PP1B1PP/R1BQ1R1K b kq - +B86 Sicilian Defense: Sozin Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 rnbqkb1r/pp3ppp/3ppn2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B87 Sicilian Defense: Sozin Attack, Flank Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1c4 e7e6 c4b3 b7b5 rnbqkb1r/5ppp/p2ppn2/1p6/3NP3/1BN5/PPP2PPP/R1BQK2R w KQkq - +B88 Sicilian Defense: Sozin Attack, Fischer Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7 8. Be3 O-O 9. f4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 e7e6 c4b3 f8e7 c1e3 e8g8 f2f4 r1bq1rk1/pp2bppp/2nppn2/8/3NPP2/1BN1B3/PPP3PP/R2QK2R b KQ - +B88 Sicilian Defense: Sozin Attack, Leonhardt Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 e7e6 r1bqkb1r/pp3ppp/2nppn2/8/2BNP3/2N5/PPP2PPP/R1BQK2R w KQkq - +B89 Sicilian Defense: Sozin Attack, Main Line 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 e7e6 c1e3 r1bqkb1r/pp3ppp/2nppn2/8/2BNP3/2N1B3/PPP2PPP/R2QK2R b KQkq - +B89 Sicilian Defense: Sozin Attack, Main Line, Sherbakov Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 Be7 8. Bb3 O-O 9. O-O Na5 10. f4 b6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1c4 e7e6 c1e3 f8e7 c4b3 e8g8 e1g1 c6a5 f2f4 b7b6 r1bq1rk1/p3bppp/1p1ppn2/n7/3NPP2/1BN1B3/PPP3PP/R2Q1RK1 w - - +B89 Sicilian Defense: Velimirovic Attack 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8. Qe2 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 e7e6 c1e3 f8e7 d1e2 r1bqk2r/pp2bppp/2nppn2/8/2BNP3/2N1B3/PPP1QPPP/R3K2R b KQkq - +B90 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B90 Sicilian Defense: Najdorf Variation, Adams Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 h2h3 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N4P/PPP2PP1/R1BQKB1R b KQkq - +B90 Sicilian Defense: Najdorf Variation, Dekker Gambit 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 g2g4 rnbqkb1r/1p2pppp/p2p1n2/8/3NP1P1/2N5/PPP2P1P/R1BQKB1R b KQkq - +B90 Sicilian Defense: Najdorf Variation, English Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq - +B90 Sicilian Defense: Najdorf Variation, English Attack, Anti-English 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 f6g4 rnbqkb1r/1p2pppp/p2p4/8/3NP1n1/2N1B3/PPP2PPP/R2QKB1R w KQkq - +B90 Sicilian Defense: Najdorf Variation, Freak Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Rg1 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 h1g1 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP2PPP/R1BQKBR1 b Qkq - +B90 Sicilian Defense: Najdorf Variation, Lipnitsky Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1c4 rnbqkb1r/1p2pppp/p2p1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B90 Sicilian Defense: Scheveningen Variation, Delayed Keres Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 e7e6 g2g4 rnbqkb1r/1p3ppp/p2ppn2/8/3NP1P1/2N1B3/PPP2P1P/R2QKB1R b KQkq - +B90 Sicilian Defense: Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e5 8. Nf5 g6 9. g5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 e7e6 g2g4 e6e5 d4f5 g7g6 g4g5 rnbqkb1r/1p3p1p/p2p1np1/4pNP1/4P3/2N1B3/PPP2P1P/R2QKB1R b KQkq - +B90 Sicilian Defense: Scheveningen Variation, English Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 e7e6 f2f3 rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N1BP2/PPP3PP/R2QKB1R b KQkq - +B91 Sicilian Defense: Najdorf Variation, Zagreb Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 g2g3 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B92 Sicilian Defense: Najdorf Variation, Opocensky Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B92 Sicilian Defense: Najdorf Variation, Opocensky Variation, Modern Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O Be6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e5 d4b3 f8e7 e1g1 c8e6 rn1qk2r/1p2bppp/p2pbn2/4p3/4P3/1NN5/PPP1BPPP/R1BQ1RK1 w kq - +B92 Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e5 d4b3 f8e7 e1g1 e8g8 rnbq1rk1/1p2bppp/p2p1n2/4p3/4P3/1NN5/PPP1BPPP/R1BQ1RK1 w - - +B93 Sicilian Defense: Najdorf Variation, Amsterdam Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f2f4 rnbqkb1r/1p2pppp/p2p1n2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq - +B94 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 rnbqkb1r/1p2pppp/p2p1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R b KQkq - +B94 Sicilian Defense: Najdorf Variation, Ivkov Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qa5 8. Qd2 e6 9. O-O-O b5 10. Bb3 Bb7 11. Rhe1 Nc5 12. e5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 b8d7 f1c4 d8a5 d1d2 e7e6 e1c1 b7b5 c4b3 c8b7 h1e1 d7c5 e4e5 r3kb1r/1b3ppp/p2ppn2/qpn1P1B1/3N4/1BN5/PPPQ1PPP/2KRR3 b kq - +B95 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 rnbqkb1r/1p3ppp/p2ppn2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq - +B96 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 rnbqkb1r/1p3ppp/p2ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R b KQkq - +B96 Sicilian Defense: Najdorf Variation, Neo-Classical Defense 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 b8c6 r1bqkb1r/1p3ppp/p1nppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - +B96 Sicilian Defense: Najdorf Variation, Polugaevsky Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 b7b5 rnbqkb1r/5ppp/p2ppn2/1p4B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - +B96 Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5 dxe5 9. fxe5 Qc7 10. Qe2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 b7b5 e4e5 d6e5 f4e5 d8c7 d1e2 rnb1kb1r/2q2ppp/p3pn2/1p2P1B1/3N4/2N5/PPP1Q1PP/R3KB1R b KQkq - +B97 Sicilian Defense: Najdorf Variation, Poisoned Pawn Accepted 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 d8b6 d1d2 b6b2 a1b1 b2a3 rnb1kb1r/1p3ppp/p2ppn2/6B1/3NPP2/q1N5/P1PQ2PP/1R2KB1R w Kkq - +B97 Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 d8b6 rnb1kb1r/1p3ppp/pq1ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - +B98 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 rnbqk2r/1p2bppp/p2ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - +B98 Sicilian Defense: Najdorf Variation, Browne Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 Qc7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 h7h6 g5h4 d8c7 rnb1k2r/1pq1bpp1/p2ppn1p/8/3NPP1B/2N2Q2/PPP3PP/R3KB1R w KQkq - +B98 Sicilian Defense: Najdorf Variation, Goteborg Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 g5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 h7h6 g5h4 g7g5 rnbqk2r/1p2bp2/p2ppn1p/6p1/3NPP1B/2N2Q2/PPP3PP/R3KB1R w KQkq - +B98 Sicilian Defense: Najdorf Variation, Traditional Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 d8c7 rnb1k2r/1pq1bppp/p2ppn2/6B1/3NPP2/2N2Q2/PPP3PP/R3KB1R w KQkq - +B99 Sicilian Defense: Najdorf Variation, Main Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 d8c7 e1c1 b8d7 r1b1k2r/1pqnbppp/p2ppn2/6B1/3NPP2/2N2Q2/PPP3PP/2KR1B1R w kq - +C00 French Defense 1. e4 e6 e2e4 e7e6 rnbqkbnr/pppp1ppp/4p3/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +C00 French Defense 1. e4 e6 2. d4 d5 e2e4 e7e6 d2d4 d7d5 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Alapin Gambit 1. e4 e6 2. d4 d5 3. Be3 e2e4 e7e6 d2d4 d7d5 c1e3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq - +C00 French Defense: Baeuerle Gambit 1. e4 e6 2. d4 b5 e2e4 e7e6 d2d4 b7b5 rnbqkbnr/p1pp1ppp/4p3/1p6/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Banzai-Leong Gambit 1. e4 e6 2. b4 e2e4 e7e6 b2b4 rnbqkbnr/pppp1ppp/4p3/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +C00 French Defense: Banzai-Leong Gambit, Pinova Gambit 1. e4 e6 2. b4 Bxb4 3. e5 e2e4 e7e6 b2b4 f8b4 e4e5 rnbqk1nr/pppp1ppp/4p3/4P3/1b6/8/P1PP1PPP/RNBQKBNR b KQkq - +C00 French Defense: Bird Invitation 1. e4 e6 2. Bb5 e2e4 e7e6 f1b5 rnbqkbnr/pppp1ppp/4p3/1B6/4P3/8/PPPP1PPP/RNBQK1NR b KQkq - +C00 French Defense: Carlson Gambit 1. e4 e6 2. d4 d5 3. Nf3 dxe4 4. Ne5 e2e4 e7e6 d2d4 d7d5 g1f3 d5e4 f3e5 rnbqkbnr/ppp2ppp/4p3/4N3/3Pp3/8/PPP2PPP/RNBQKB1R b KQkq - +C00 French Defense: Chigorin Variation 1. e4 e6 2. Qe2 e2e4 e7e6 d1e2 rnbqkbnr/pppp1ppp/4p3/8/4P3/8/PPPPQPPP/RNB1KBNR b KQkq - +C00 French Defense: Franco-Hiva Gambit 1. e4 e6 2. d3 f5 e2e4 e7e6 d2d3 f7f5 rnbqkbnr/pppp2pp/4p3/5p2/4P3/3P4/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Franco-Hiva Gambit 1. e4 e6 2. Nf3 f5 e2e4 e7e6 g1f3 f7f5 rnbqkbnr/pppp2pp/4p3/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C00 French Defense: Franco-Hiva Gambit Accepted 1. e4 e6 2. d4 f5 3. exf5 Nf6 e2e4 e7e6 d2d4 f7f5 e4f5 g8f6 rnbqkb1r/pppp2pp/4pn2/5P2/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Hoffmann Gambit 1. e4 e6 2. d4 d5 3. Qe2 e5 4. f4 exf4 e2e4 e7e6 d2d4 d7d5 d1e2 e6e5 f2f4 e5f4 rnbqkbnr/ppp2ppp/8/3p4/3PPp2/8/PPP1Q1PP/RNB1KBNR w KQkq - +C00 French Defense: Horwitz Attack 1. e4 e6 2. b3 e2e4 e7e6 b2b3 rnbqkbnr/pppp1ppp/4p3/8/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +C00 French Defense: Horwitz Attack, Papa-Ticulat Gambit 1. e4 e6 2. b3 d5 3. Bb2 e2e4 e7e6 b2b3 d7d5 c1b2 rnbqkbnr/ppp2ppp/4p3/3p4/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq - +C00 French Defense: King's Indian Attack 1. e4 e6 2. d3 e2e4 e7e6 d2d3 rnbqkbnr/pppp1ppp/4p3/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - +C00 French Defense: Knight Variation 1. e4 e6 2. Nf3 e2e4 e7e6 g1f3 rnbqkbnr/pppp1ppp/4p3/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +C00 French Defense: La Bourdonnais Variation 1. e4 e6 2. f4 e2e4 e7e6 f2f4 rnbqkbnr/pppp1ppp/4p3/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +C00 French Defense: La Bourdonnais Variation, Reuter Gambit 1. e4 e6 2. f4 d5 3. Nf3 dxe4 e2e4 e7e6 f2f4 d7d5 g1f3 d5e4 rnbqkbnr/ppp2ppp/4p3/8/4pP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C00 French Defense: Mediterranean Defense 1. e4 e6 2. d4 Nf6 e2e4 e7e6 d2d4 g8f6 rnbqkb1r/pppp1ppp/4pn2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Morphy Gambit 1. e4 e6 2. d4 d5 3. Nh3 e2e4 e7e6 d2d4 d7d5 g1h3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/7N/PPP2PPP/RNBQKB1R b KQkq - +C00 French Defense: Normal Variation 1. e4 e6 2. d4 e2e4 e7e6 d2d4 rnbqkbnr/pppp1ppp/4p3/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +C00 French Defense: Orthoschnapp Gambit 1. e4 e6 2. c4 d5 3. cxd5 exd5 4. Qb3 e2e4 e7e6 c2c4 d7d5 c4d5 e6d5 d1b3 rnbqkbnr/ppp2ppp/8/3p4/4P3/1Q6/PP1P1PPP/RNB1KBNR b KQkq - +C00 French Defense: Pelikan Variation 1. e4 e6 2. Nc3 d5 3. f4 e2e4 e7e6 b1c3 d7d5 f2f4 rnbqkbnr/ppp2ppp/4p3/3p4/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C00 French Defense: Perseus Gambit 1. e4 e6 2. d4 d5 3. Nf3 e2e4 e7e6 d2d4 d7d5 g1f3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C00 French Defense: Queen's Knight 1. e4 e6 2. Nc3 e2e4 e7e6 b1c3 rnbqkbnr/pppp1ppp/4p3/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - +C00 French Defense: Reversed Philidor Formation 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 Nc6 5. Be2 e2e4 e7e6 d2d3 d7d5 b1d2 g8f6 g1f3 b8c6 f1e2 r1bqkb1r/ppp2ppp/2n1pn2/3p4/4P3/3P1N2/PPPNBPPP/R1BQK2R b KQkq - +C00 French Defense: Réti-Spielmann Attack 1. e4 e6 2. g3 e2e4 e7e6 g2g3 rnbqkbnr/pppp1ppp/4p3/8/4P3/6P1/PPPP1P1P/RNBQKBNR b KQkq - +C00 French Defense: Schlechter Variation 1. e4 e6 2. d4 d5 3. Bd3 e2e4 e7e6 d2d4 d7d5 f1d3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/3B4/PPP2PPP/RNBQK1NR b KQkq - +C00 French Defense: Steiner Variation 1. e4 e6 2. c4 e2e4 e7e6 c2c4 rnbqkbnr/pppp1ppp/4p3/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +C00 French Defense: Steinitz Attack 1. e4 e6 2. e5 e2e4 e7e6 e4e5 rnbqkbnr/pppp1ppp/4p3/4P3/8/8/PPPP1PPP/RNBQKBNR b KQkq - +C00 French Defense: Two Knights Variation 1. e4 e6 2. Nf3 d5 3. Nc3 e2e4 e7e6 g1f3 d7d5 b1c3 rnbqkbnr/ppp2ppp/4p3/3p4/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C00 French Defense: Wing Gambit 1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4 e2e4 e7e6 g1f3 d7d5 e4e5 c7c5 b2b4 rnbqkbnr/pp3ppp/4p3/2ppP3/1P6/5N2/P1PP1PPP/RNBQKB1R b KQkq - +C00 Queen's Pawn Game: Franco-Sicilian Defense 1. e4 e6 2. d4 c5 e2e4 e7e6 d2d4 c7c5 rnbqkbnr/pp1p1ppp/4p3/2p5/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 Rat Defense: Small Center Defense 1. d4 e6 2. e4 d6 d2d4 e7e6 e2e4 d7d6 rnbqkbnr/ppp2ppp/3pp3/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 Sicilian Defense: Drazic Variation 1. e4 e6 2. d4 c5 3. Nf3 a6 e2e4 e7e6 d2d4 c7c5 g1f3 a7a6 rnbqkbnr/1p1p1ppp/p3p3/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C00 St. George Defense 1. e4 e6 2. d4 a6 e2e4 e7e6 d2d4 a7a6 rnbqkbnr/1ppp1ppp/p3p3/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 St. George Defense: New St. George, Sanky-George Gambit 1. e4 e6 2. d4 a6 3. c4 b5 e2e4 e7e6 d2d4 a7a6 c2c4 b7b5 rnbqkbnr/2pp1ppp/p3p3/1p6/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - +C00 St. George Defense: New St. George, Three Pawn Attack 1. e4 e6 2. d4 a6 3. c4 e2e4 e7e6 d2d4 a7a6 c2c4 rnbqkbnr/1ppp1ppp/p3p3/8/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - +C00 St. George Defense: New St. George, Traditional Line 1. e4 e6 2. d4 a6 3. Nf3 b5 4. Bd3 c5 5. c3 Bb7 6. O-O Nf6 e2e4 e7e6 d2d4 a7a6 g1f3 b7b5 f1d3 c7c5 c2c3 c8b7 e1g1 g8f6 rn1qkb1r/1b1p1ppp/p3pn2/1pp5/3PP3/2PB1N2/PP3PPP/RNBQ1RK1 w kq - +C00 St. George Defense: St. George Gambit 1. e4 e6 2. d4 a6 3. c4 b5 4. cxb5 axb5 e2e4 e7e6 d2d4 a7a6 c2c4 b7b5 c4b5 a6b5 rnbqkbnr/2pp1ppp/4p3/1p6/3PP3/8/PP3PPP/RNBQKBNR w KQkq - +C01 French Defense: Exchange Variation 1. e4 e6 2. d4 d5 3. exd5 e2e4 e7e6 d2d4 d7d5 e4d5 rnbqkbnr/ppp2ppp/4p3/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +C01 French Defense: Exchange Variation, Bogoljubov Variation 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5 Nc6 e2e4 e7e6 d2d4 d7d5 e4d5 e6d5 b1c3 g8f6 c1g5 b8c6 r1bqkb1r/ppp2ppp/2n2n2/3p2B1/3P4/2N5/PPP2PPP/R2QKBNR w KQkq - +C01 French Defense: Exchange Variation, Monte Carlo Variation 1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4 e2e4 e7e6 d2d4 d7d5 e4d5 e6d5 c2c4 rnbqkbnr/ppp2ppp/8/3p4/2PP4/8/PP3PPP/RNBQKBNR b KQkq - +C01 French Defense: Exchange Variation, Svenonius Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. exd5 exd5 5. Bg5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4d5 e6d5 c1g5 rnbqkb1r/ppp2ppp/5n2/3p2B1/3P4/2N5/PPP2PPP/R2QKBNR b KQkq - +C02 French Defense: Advance Variation 1. e4 e6 2. d4 d5 3. e5 e2e4 e7e6 d2d4 d7d5 e4e5 rnbqkbnr/ppp2ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +C02 French Defense: Advance Variation 1. e4 e6 2. d4 d5 3. e5 c5 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 rnbqkbnr/pp3ppp/4p3/2ppP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +C02 French Defense: Advance Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 rnbqkbnr/pp3ppp/4p3/2ppP3/3P4/2P5/PP3PPP/RNBQKBNR b KQkq - +C02 French Defense: Advance Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 r1bqkbnr/pp3ppp/2n1p3/2ppP3/3P4/2P5/PP3PPP/RNBQKBNR w KQkq - +C02 French Defense: Advance Variation, Euwe Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 c8d7 r2qkbnr/pp1b1ppp/2n1p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R w KQkq - +C02 French Defense: Advance Variation, Extended Bishop Swap 1. e4 e6 2. d4 d5 3. e5 Bd7 e2e4 e7e6 d2d4 d7d5 e4e5 c8d7 rn1qkbnr/pppb1ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +C02 French Defense: Advance Variation, Frenkel Gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. b4 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 b2b4 rnbqkbnr/pp3ppp/4p3/2ppP3/1P1P4/8/P1P2PPP/RNBQKBNR b KQkq - +C02 French Defense: Advance Variation, Lputian Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Nh6 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 d8b6 a2a3 g8h6 r1b1kb1r/pp3ppp/1qn1p2n/2ppP3/3P4/P1P2N2/1P3PPP/RNBQKB1R w KQkq - +C02 French Defense: Advance Variation, Main Line 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 d8b6 a2a3 r1b1kbnr/pp3ppp/1qn1p3/2ppP3/3P4/P1P2N2/1P3PPP/RNBQKB1R b KQkq - +C02 French Defense: Advance Variation, Milner-Barry Gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 d8b6 f1d3 r1b1kbnr/pp3ppp/1qn1p3/2ppP3/3P4/2PB1N2/PP3PPP/RNBQK2R b KQkq - +C02 French Defense: Advance Variation, Nimzowitsch Attack 1. e4 e6 2. d4 d5 3. e5 c5 4. Qg4 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 d1g4 rnbqkbnr/pp3ppp/4p3/2ppP3/3P2Q1/8/PPP2PPP/RNB1KBNR b KQkq - +C02 French Defense: Advance Variation, Nimzowitsch Gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. Qg4 cxd4 5. Nf3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 d1g4 c5d4 g1f3 rnbqkbnr/pp3ppp/4p3/3pP3/3p2Q1/5N2/PPP2PPP/RNB1KB1R b KQkq - +C02 French Defense: Advance Variation, Nimzowitsch System 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 g1f3 rnbqkbnr/pp3ppp/4p3/2ppP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq - +C02 French Defense: Advance Variation, Paulsen Attack 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 r1bqkbnr/pp3ppp/2n1p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C02 French Defense: Advance Variation, Ruisdonk Gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Bd3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 g1f3 c5d4 f1d3 rnbqkbnr/pp3ppp/4p3/3pP3/3p4/3B1N2/PPP2PPP/RNBQK2R b KQkq - +C02 French Defense: Advance Variation, Steinitz Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. dxc5 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 d4c5 rnbqkbnr/pp3ppp/4p3/2PpP3/8/8/PPP2PPP/RNBQKBNR b KQkq - +C02 French Defense: Advance Variation, Wade Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 d8b6 g1f3 c8d7 rn2kbnr/pp1b1ppp/1q2p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R w KQkq - +C03 French Defense: Guimard Variation, Thunderbunny Variation 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. c3 dxe4 5. Nxe4 e5 e2e4 e7e6 d2d4 d7d5 b1d2 b8c6 c2c3 d5e4 d2e4 e6e5 r1bqkbnr/ppp2ppp/2n5/4p3/3PN3/2P5/PP3PPP/R1BQKBNR w KQkq - +C03 French Defense: Tarrasch Variation 1. e4 e6 2. d4 d5 3. Nd2 e2e4 e7e6 d2d4 d7d5 b1d2 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR b KQkq - +C03 French Defense: Tarrasch Variation, Guimard Defense 1. e4 e6 2. d4 d5 3. Nd2 Nc6 e2e4 e7e6 d2d4 d7d5 b1d2 b8c6 r1bqkbnr/ppp2ppp/2n1p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C03 French Defense: Tarrasch Variation, Haberditz Variation 1. e4 e6 2. d4 d5 3. Nd2 f5 e2e4 e7e6 d2d4 d7d5 b1d2 f7f5 rnbqkbnr/ppp3pp/4p3/3p1p2/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C03 French Defense: Tarrasch Variation, Modern System 1. e4 e6 2. d4 d5 3. Nd2 a6 e2e4 e7e6 d2d4 d7d5 b1d2 a7a6 rnbqkbnr/1pp2ppp/p3p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C03 French Defense: Tarrasch Variation, Morozevich Variation 1. e4 e6 2. d4 d5 3. Nd2 Be7 e2e4 e7e6 d2d4 d7d5 b1d2 f8e7 rnbqk1nr/ppp1bppp/4p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C04 French Defense: Tarrasch Variation, Guimard Defense, Main Line 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 e2e4 e7e6 d2d4 d7d5 b1d2 b8c6 g1f3 g8f6 r1bqkb1r/ppp2ppp/2n1pn2/3p4/3PP3/5N2/PPPN1PPP/R1BQKB1R w KQkq - +C05 French Defense: Tarrasch Variation, Botvinnik Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 b6 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b7b6 rnbqkb1r/p2n1ppp/1p2p3/2ppP3/3P4/2PB4/PP1N1PPP/R1BQK1NR w KQkq - +C05 French Defense: Tarrasch Variation, Closed Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C05 French Defense: Tarrasch Variation, Closed Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6 r1bqkb1r/pp1n1ppp/2n1p3/2ppP3/3P4/2PB4/PP1N1PPP/R1BQK1NR w KQkq - +C05 French Defense: Tarrasch Variation, Pawn Center Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f2f4 rnbqkb1r/pppn1ppp/4p3/3pP3/3P1P2/8/PPPN2PP/R1BQKBNR b KQkq - +C06 French Defense: Tarrasch Variation, Closed Variation, Main Line 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6 g1e2 c5d4 c3d4 r1bqkb1r/pp1n1ppp/2n1p3/3pP3/3P4/3B4/PP1NNPPP/R1BQK2R b KQkq - +C06 French Defense: Tarrasch Variation, Leningrad Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 Nb6 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6 g1e2 c5d4 c3d4 d7b6 r1bqkb1r/pp3ppp/1nn1p3/3pP3/3P4/3B4/PP1NNPPP/R1BQK2R w KQkq - +C07 French Defense: Tarrasch Variation, Chistyakov Defense 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 d8d5 rnb1kbnr/pp3ppp/4p3/2pq4/3P4/8/PPPN1PPP/R1BQKBNR w KQkq - +C07 French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 d8d5 g1f3 c5d4 f1c4 d5d6 e1g1 g8f6 d2b3 b8c6 b3d4 c6d4 f3d4 a7a6 r1b1kb1r/1p3ppp/p2qpn2/8/2BN4/8/PPP2PPP/R1BQ1RK1 w kq - +C07 French Defense: Tarrasch Variation, Eliskases Variation 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 d8d5 g1f3 c5d4 f1c4 d5d8 rnbqkbnr/pp3ppp/4p3/8/2Bp4/5N2/PPPN1PPP/R1BQK2R w KQkq - +C07 French Defense: Tarrasch Variation, Open System 1. e4 e6 2. d4 d5 3. Nd2 c5 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C07 French Defense: Tarrasch Variation, Open System, Euwe-Keres Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 g1f3 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/5N2/PPPN1PPP/R1BQKB1R b KQkq - +C07 French Defense: Tarrasch Variation, Open System, Shaposhnikov Gambit 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Nf6 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 g8f6 rnbqkb1r/pp3ppp/4pn2/2pP4/3P4/8/PPPN1PPP/R1BQKBNR w KQkq - +C07 French Defense: Tarrasch Variation, Open System, Süchting Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 c2c3 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/2P5/PP1N1PPP/R1BQKBNR b KQkq - +C08 French Defense: Tarrasch Variation, Open System 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 e6d5 rnbqkbnr/pp3ppp/8/2pp4/3P4/8/PPPN1PPP/R1BQKBNR w KQkq - +C08 French Defense: Tarrasch Variation, Open System, Advance Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 c4 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 e6d5 g1f3 c5c4 rnbqkbnr/pp3ppp/8/3p4/2pP4/5N2/PPPN1PPP/R1BQKB1R w KQkq - +C09 French Defense: Tarrasch Variation, Open System, Main Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 e6d5 g1f3 b8c6 r1bqkbnr/pp3ppp/2n5/2pp4/3P4/5N2/PPPN1PPP/R1BQKB1R w KQkq - +C10 French Defense: Classical Variation, Svenonius Variation 1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. exd5 e2e4 e7e6 d2d4 d7d5 b1c3 b8c6 e4d5 r1bqkbnr/ppp2ppp/2n1p3/3P4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C10 French Defense: Paulsen Variation 1. e4 e6 2. d4 d5 3. Nc3 e2e4 e7e6 d2d4 d7d5 b1c3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +C10 French Defense: Rubinstein Variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 rnbqkbnr/ppp2ppp/4p3/8/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C10 French Defense: Rubinstein Variation, Blackburne Defense 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7 r1bqkbnr/pppn1ppp/4p3/8/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +C10 French Defense: Rubinstein Variation, Capablanca Line 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7 g1f3 g8f6 e4f6 d7f6 f3e5 r1bqkb1r/ppp2ppp/4pn2/4N3/3P4/8/PPP2PPP/R1BQKB1R b KQkq - +C10 French Defense: Rubinstein Variation, Ellis Gambit 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 e5 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 e6e5 rnbqkbnr/ppp2ppp/8/4p3/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +C10 French Defense: Rubinstein Variation, Fort Knox Variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 c8d7 g1f3 d7c6 rn1qkbnr/ppp2ppp/2b1p3/8/3PN3/5N2/PPP2PPP/R1BQKB1R w KQkq - +C10 French Defense: Rubinstein Variation, Kasparov Attack 1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. c3 e2e4 e7e6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 g1f3 g8f6 e4f6 d7f6 c2c3 r1bqkb1r/ppp2ppp/4pn2/8/3P4/2P2N2/PP3PPP/R1BQKB1R b KQkq - +C10 French Defense: Rubinstein Variation, Maric Variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Qd5 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 d8d5 rnb1kbnr/ppp2ppp/4p3/3q4/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +C10 Sicilian Defense: Marshall Gambit 1. e4 c5 2. Nc3 e6 3. d4 d5 e2e4 c7c5 b1c3 e7e6 d2d4 d7d5 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C11 French Defense: Burn Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq - +C11 French Defense: Classical Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C11 French Defense: Classical Variation, Burn Variation, Main Line 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 O-O e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 d5e4 c3e4 f8e7 g5f6 e7f6 g1f3 e8g8 rnbq1rk1/ppp2ppp/4pb2/8/3PN3/5N2/PPP2PPP/R2QKB1R w KQ - +C11 French Defense: Classical Variation, Burn Variation, Morozevich Line 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 d5e4 c3e4 f8e7 g5f6 g7f6 rnbqk2r/ppp1bp1p/4pp2/8/3PN3/8/PPP2PPP/R2QKBNR w KQkq - +C11 French Defense: Classical Variation, Delayed Exchange Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. exd5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4d5 rnbqkb1r/ppp2ppp/4pn2/3P4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C11 French Defense: Classical Variation, Steinitz Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 rnbqkb1r/ppp2ppp/4pn2/3pP3/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C11 French Defense: Classical Variation, Swiss Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bd3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 f1d3 rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2NB4/PPP2PPP/R1BQK1NR b KQkq - +C11 French Defense: Henneberger Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Be3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1e3 rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq - +C11 French Defense: Steinitz Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 b8c6 r1bqkb1r/pp1n1ppp/2n1p3/2PpP3/5P2/2N5/PPP3PP/R1BQKBNR w KQkq - +C11 French Defense: Steinitz Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 g1f3 rnbqkb1r/pp1n1ppp/4p3/2ppP3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQkq - +C11 French Defense: Steinitz Variation, Boleslavsky Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 g1f3 b8c6 c1e3 r1bqkb1r/pp1n1ppp/2n1p3/2ppP3/3P1P2/2N1BN2/PPP3PP/R2QKB1R b KQkq - +C11 French Defense: Steinitz Variation, Bradford Attack Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Bxc5 7. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 f8c5 d1g4 rnbqk2r/pp1n1ppp/4p3/2bpP3/5PQ1/2N5/PPP3PP/R1B1KBNR b KQkq - +C11 French Defense: Steinitz Variation, Brodsky-Jones Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6 7. a3 Bxc5 8. Qg4 O-O 9. Nf3 f6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 b8c6 a2a3 f8c5 d1g4 e8g8 g1f3 f7f6 r1bq1rk1/pp1n2pp/2n1pp2/2bpP3/5PQ1/P1N2N2/1PP3PP/R1B1KB1R w KQ - +C11 French Defense: Steinitz Variation, Gledhill Attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 d1g4 rnbqkb1r/pppn1ppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R1B1KBNR b KQkq - +C12 French Defense: MacCutcheon Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 rnbqk2r/ppp2ppp/4pn2/3p2B1/1b1PP3/2N5/PPP2PPP/R2QKBNR w KQkq - +C12 French Defense: MacCutcheon Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 rnbqk2r/ppp2ppp/4pn2/3pP1B1/1b1P4/2N5/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Bernstein Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bh4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5h4 rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P3B/2N5/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Bogoljubov Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. exd5 Qxd5 6. Bxf6 gxf6 7. Qd2 Qa5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4d5 d8d5 g5f6 g7f6 d1d2 d5a5 rnb1k2r/ppp2p1p/4pp2/q7/1b1P4/2N5/PPPQ1PPP/R3KBNR w KQkq - +C12 French Defense: MacCutcheon Variation, Chigorin Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. exf6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 e5f6 rnbqk2r/ppp2pp1/4pP1p/3p2B1/1b1P4/2N5/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Dr. Olland Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bc1 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5c1 rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Duras Variation 1. e4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 Kf8 9. Bc1 e2e4 e7e6 b1c3 d7d5 d2d4 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3 b2c3 f6e4 d1g4 e8f8 d2c1 rnbq1k1r/ppp2pp1/4p2p/3pP3/3Pn1Q1/2P5/P1P2PPP/R1B1KBNR b KQ - +C12 French Defense: MacCutcheon Variation, Exchange Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. exd5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4d5 rnbqk2r/ppp2ppp/4pn2/3P2B1/1b1P4/2N5/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Grigoriev Variation 1. d4 d5 2. Nc3 Nf6 3. Bg5 e6 4. e4 Bb4 5. e5 h6 6. exf6 hxg5 7. fxg7 Rg8 8. h4 gxh4 9. Qg4 d2d4 d7d5 b1c3 g8f6 c1g5 e7e6 e2e4 f8b4 e4e5 h7h6 e5f6 h6g5 f6g7 h8g8 h2h4 g5h4 d1g4 rnbqk1r1/ppp2pP1/4p3/3p4/1b1P2Qp/2N5/PPP2PP1/R3KBNR b KQq - +C12 French Defense: MacCutcheon Variation, Janowski Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Be3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5e3 rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P4/2N1B3/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Lasker Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3 rnbqk2r/ppp2pp1/4pn1p/3pP3/3P4/2b5/PPPB1PPP/R2QKBNR w KQkq - +C12 French Defense: MacCutcheon Variation, Lasker Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 g6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3 b2c3 f6e4 d1g4 g7g6 rnbqk2r/ppp2p2/4p1pp/3pP3/3Pn1Q1/2P5/P1PB1PPP/R3KBNR w KQkq - +C12 French Defense: MacCutcheon Variation, Tartakower Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Nfd7 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 f6d7 rnbqk2r/pppn1pp1/4p2p/3pP3/1b1P4/2N5/PPPB1PPP/R2QKBNR w KQkq - +C13 French Defense: Alekhine-Chatard Attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 rnbqk2r/pppnbppp/4p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR b KQkq - +C13 French Defense: Alekhine-Chatard Attack, Albin-Chatard Gambit 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 Bxg5 7. hxg5 Qxg5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 e7g5 h4g5 d8g5 rnb1k2r/pppn1ppp/4p3/3pP1q1/3P4/2N5/PPP2PP1/R2QKBNR w KQkq - +C13 French Defense: Alekhine-Chatard Attack, Breyer Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 c7c5 rnbqk2r/pp1nbppp/4p3/2ppP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq - +C13 French Defense: Alekhine-Chatard Attack, Maróczy Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 a6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 a7a6 rnbqk2r/1ppnbppp/p3p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq - +C13 French Defense: Alekhine-Chatard Attack, Spielmann Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 O-O e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 e8g8 rnbq1rk1/pppnbppp/4p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQ - +C13 French Defense: Alekhine-Chatard Attack, Teichmann Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 f6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 f7f6 rnbqk2r/pppnb1pp/4pp2/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq - +C13 French Defense: Classical Variation, Frankfurt Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ng8 6. Be3 b6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6g8 g5e3 b7b6 rnbqk1nr/p1p1bppp/1p2p3/3pP3/3P4/2N1B3/PPP2PPP/R2QKBNR w KQkq - +C13 French Defense: Classical Variation, Normal Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 rnbqk2r/ppp1bppp/4pn2/3p2B1/3PP3/2N5/PPP2PPP/R2QKBNR w KQkq - +C13 French Defense: Classical Variation, Richter Attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 g5f6 rnbqk2r/ppp1bppp/4pB2/3p4/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq - +C13 French Defense: Classical Variation, Richter Attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. e5 Be7 7. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 g5f6 e7f6 e4e5 f6e7 d1g4 rnbqk2r/ppp1bppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R3KBNR b KQkq - +C13 French Defense: Classical Variation, Tartakower Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ne4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6e4 rnbqk2r/ppp1bppp/4p3/3pP1B1/3Pn3/2N5/PPP2PPP/R2QKBNR w KQkq - +C13 French Defense: Classical Variation, Vistaneckis Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ng8 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6g8 rnbqk1nr/ppp1bppp/4p3/3pP1B1/3P4/2N5/PPP2PPP/R2QKBNR w KQkq - +C14 French Defense: Classical Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 rnb1k2r/pppnqppp/4p3/3pP3/3P4/2N5/PPP2PPP/R2QKBNR w KQkq - +C14 French Defense: Classical Variation, Alapin Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Nb5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 c3b5 rnb1k2r/pppnqppp/4p3/1N1pP3/3P4/8/PPP2PPP/R2QKBNR b KQkq - +C14 French Defense: Classical Variation, Pollock Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 d1g4 rnb1k2r/pppnqppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R3KBNR b KQkq - +C14 French Defense: Classical Variation, Rubinstein Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qd2 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 d1d2 rnb1k2r/pppnqppp/4p3/3pP3/3P4/2N5/PPPQ1PPP/R3KBNR b KQkq - +C14 French Defense: Classical Variation, Stahlberg Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 O-O 8. Nf3 c5 9. Qd2 Nc6 10. O-O-O c4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f2f4 e8g8 g1f3 c7c5 d1d2 b8c6 e1c1 c5c4 r1b2rk1/pp1nqppp/2n1p3/3pP3/2pP1P2/2N2N2/PPPQ2PP/2KR1B1R w - - +C14 French Defense: Classical Variation, Steinitz Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f2f4 rnb1k2r/pppnqppp/4p3/3pP3/3P1P2/2N5/PPP3PP/R2QKBNR b KQkq - +C14 French Defense: Classical Variation, Tarrasch Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Bd3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f1d3 rnb1k2r/pppnqppp/4p3/3pP3/3P4/2NB4/PPP2PPP/R2QK1NR b KQkq - +C15 French Defense: MacCutcheon Variation, Wolf Gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 Nf6 5. Bg5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 g8f6 c1g5 rnbqk2r/ppp2ppp/4pn2/3p2B1/1b1PP3/2N5/PPP1NPPP/R2QKB1R b KQkq - +C15 French Defense: Winawer Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C15 French Defense: Winawer Variation, Alekhine Gambit Accepted 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Bxc3+ e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4c3 rnbqk1nr/ppp2ppp/4p3/8/3Pp3/P1b5/1PP1NPPP/R1BQKB1R w KQkq - +C15 French Defense: Winawer Variation, Alekhine Gambit, Alatortsev Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. N2g3 O-O 8. Be2 Nc6 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4e7 c3e4 g8f6 e2g3 e8g8 f1e2 b8c6 r1bq1rk1/ppp1bppp/2n1pn2/8/3PN3/P5N1/1PP1BPPP/R1BQK2R w KQ - +C15 French Defense: Winawer Variation, Alekhine Gambit, Kan Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Bxc3+ 6. Nxc3 Nc6 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4c3 e2c3 b8c6 r1bqk1nr/ppp2ppp/2n1p3/8/3Pp3/P1N5/1PP2PPP/R1BQKB1R w KQkq - +C15 French Defense: Winawer Variation, Alekhine-Maróczy Gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPP1NPPP/R1BQKB1R b KQkq - +C15 French Defense: Winawer Variation, Delayed Exchange Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4d5 rnbqk1nr/ppp2ppp/4p3/3P4/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C15 French Defense: Winawer Variation, Exchange Variation, Canal Attack 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Ne7 6. Qh5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4d5 e6d5 f1d3 g8e7 d1h5 rnbqk2r/ppp1nppp/8/3p3Q/1b1P4/2NB4/PPP2PPP/R1B1K1NR b KQkq - +C15 French Defense: Winawer Variation, Fingerslip Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2 rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPPB1PPP/R2QKBNR b KQkq - +C15 French Defense: Winawer Variation, Fingerslip Variation, Kunin Double Gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 dxe4 5. Qg4 Qxd4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2 d5e4 d1g4 d8d4 rnb1k1nr/ppp2ppp/4p3/8/1b1qp1Q1/2N5/PPPB1PPP/R3KBNR w KQkq - +C15 French Defense: Winawer Variation, Fingerslip Variation, Main Line 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 dxe4 5. Qg4 Nf6 6. Qxg7 Rg8 7. Qh6 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2 d5e4 d1g4 g8f6 g4g7 h8g8 g7h6 rnbqk1r1/ppp2p1p/4pn1Q/8/1b1Pp3/2N5/PPPB1PPP/R3KBNR b KQq - +C15 French Defense: Winawer Variation, Fingerslip Variation, Schwarz's Line 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 Ne7 5. Nb1 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2 g8e7 c3b1 rnbqk2r/ppp1nppp/4p3/3p4/1b1PP3/8/PPPB1PPP/RN1QKBNR b KQkq - +C15 French Defense: Winawer Variation, Kondratiyev Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd3 c5 5. exd5 Qxd5 6. Bd2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 f1d3 c7c5 e4d5 d8d5 c1d2 rnb1k1nr/pp3ppp/4p3/2pq4/1b1P4/2NB4/PPPB1PPP/R2QK1NR b KQkq - +C15 French Defense: Winawer Variation, Winckelmann-Riemer Gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 a2a3 rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/P1N5/1PP2PPP/R1BQKBNR b KQkq - +C16 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 rnbqk1nr/ppp2ppp/4p3/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C16 French Defense: Winawer Variation, Petrosian Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 d8d7 rnb1k1nr/pppq1ppp/4p3/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +C17 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +C17 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/P1N5/1PP2PPP/R1BQKBNR b KQkq - +C17 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 7. Nf3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 c5d4 a3b4 d4c3 g1f3 rnbqk1nr/pp3ppp/4p3/3pP3/1P6/2p2N2/1PP2PPP/R1BQKB1R b KQkq - +C17 French Defense: Winawer Variation, Advance Variation, Moscow Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 d1g4 rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P2Q1/2N5/PPP2PPP/R1B1KBNR b KQkq - +C17 French Defense: Winawer Variation, Bogoljubov Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 c1d2 rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/2N5/PPPB1PPP/R2QKBNR b KQkq - +C17 French Defense: Winawer Variation, Bogoljubov Variation, Icelandic Defense 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. f4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 c1d2 g8e7 f2f4 rnbqk2r/pp2nppp/4p3/2ppP3/1b1P1P2/2N5/PPPB2PP/R2QKBNR b KQkq - +C17 French Defense: Winawer Variation, Maróczy-Wallis Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 c5d4 a3b4 d4c3 rnbqk1nr/pp3ppp/4p3/3pP3/1P6/2p5/1PP2PPP/R1BQKBNR w KQkq - +C17 French Defense: Winawer Variation, Retreat Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4a5 rnbqk1nr/pp3ppp/4p3/b1ppP3/3P4/P1N5/1PP2PPP/R1BQKBNR w KQkq - +C17 French Defense: Winawer Variation, Retreat Variation, Armenian Line 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4a5 b2b4 c5d4 rnbqk1nr/pp3ppp/4p3/b2pP3/1P1p4/P1N5/2P2PPP/R1BQKBNR w KQkq - +C18 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 rnbqk1nr/pp3ppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR b KQkq - +C18 French Defense: Winawer Variation, Classical Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 d8c7 rnb1k1nr/ppq2ppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR w KQkq - +C19 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 rnbqk2r/pp2nppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR w KQkq - +C19 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. a4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 a3a4 rnbqk2r/pp2nppp/4p3/2ppP3/P2P4/2P5/2P2PPP/R1BQKBNR b KQkq - +C19 French Defense: Winawer Variation, Poisoned Pawn Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4 rnbqk2r/pp2nppp/4p3/2ppP3/3P2Q1/P1P5/2P2PPP/R1B1KBNR b KQkq - +C19 French Defense: Winawer Variation, Poisoned Pawn Variation, Main Line 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4 d8c7 g4g7 h8g8 g7h7 c5d4 g1e2 rnb1k1r1/ppq1np1Q/4p3/3pP3/3p4/P1P5/2P1NPPP/R1B1KB1R b KQq - +C19 French Defense: Winawer Variation, Poisoned Pawn Variation, Paoli Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Kd1 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4 d8c7 g4g7 h8g8 g7h7 c5d4 e1d1 rnb1k1r1/ppq1np1Q/4p3/3pP3/3p4/P1P5/2P2PPP/R1BK1BNR b q - +C19 French Defense: Winawer Variation, Positional Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 g1f3 rnbqk2r/pp2nppp/4p3/2ppP3/3P4/P1P2N2/2P2PPP/R1BQKB1R b KQkq - +C20 Barnes Opening: Walkerling 1. f3 e5 2. e4 Nf6 3. Bc4 f2f3 e7e5 e2e4 g8f6 f1c4 rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/5P2/PPPP2PP/RNBQK1NR b KQkq - +C20 Bongcloud Attack 1. e4 e5 2. Ke2 e2e4 e7e5 e1e2 rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPPKPPP/RNBQ1BNR b kq - +C20 Center Game 1. e4 e5 2. d4 e2e4 e7e5 d2d4 rnbqkbnr/pppp1ppp/8/4p3/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +C20 English Opening: The Whale 1. e4 e5 2. c4 e2e4 e7e5 c2c4 rnbqkbnr/pppp1ppp/8/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +C20 King's Pawn Game 1. e4 e5 e2e4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Alapin Opening 1. e4 e5 2. Ne2 e2e4 e7e5 g1e2 rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPPNPPP/RNBQKB1R b KQkq - +C20 King's Pawn Game: Bavarian Gambit 1. e4 e5 2. c4 d5 e2e4 e7e5 c2c4 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Beyer Gambit 1. e4 e5 2. d4 d5 e2e4 e7e5 d2d4 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Clam Variation, King's Gambit Reversed 1. e4 e5 2. d3 f5 e2e4 e7e5 d2d3 f7f5 rnbqkbnr/pppp2pp/8/4pp2/4P3/3P4/PPP2PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: King's Head Opening 1. e4 e5 2. f3 e2e4 e7e5 f2f3 rnbqkbnr/pppp1ppp/8/4p3/4P3/5P2/PPPP2PP/RNBQKBNR b KQkq - +C20 King's Pawn Game: King's Head Opening 1. e4 e5 2. f3 Nf6 3. Nc3 e2e4 e7e5 f2f3 g8f6 b1c3 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N2P2/PPPP2PP/R1BQKBNR b KQkq - +C20 King's Pawn Game: Leonardis Variation 1. e4 e5 2. d3 e2e4 e7e5 d2d3 rnbqkbnr/pppp1ppp/8/4p3/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - +C20 King's Pawn Game: Macleod Attack 1. e4 e5 2. c3 e2e4 e7e5 c2c3 rnbqkbnr/pppp1ppp/8/4p3/4P3/2P5/PP1P1PPP/RNBQKBNR b KQkq - +C20 King's Pawn Game: Macleod Attack, Lasa Gambit 1. e4 e5 2. c3 f5 e2e4 e7e5 c2c3 f7f5 rnbqkbnr/pppp2pp/8/4pp2/4P3/2P5/PP1P1PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Macleod Attack, Norwalde Gambit 1. e4 e5 2. c3 d5 3. Qh5 Bd6 e2e4 e7e5 c2c3 d7d5 d1h5 f8d6 rnbqk1nr/ppp2ppp/3b4/3pp2Q/4P3/2P5/PP1P1PPP/RNB1KBNR w KQkq - +C20 King's Pawn Game: Mengarini's Opening 1. e4 e5 2. a3 e2e4 e7e5 a2a3 rnbqkbnr/pppp1ppp/8/4p3/4P3/P7/1PPP1PPP/RNBQKBNR b KQkq - +C20 King's Pawn Game: Napoleon Attack 1. e4 e5 2. Qf3 e2e4 e7e5 d1f3 rnbqkbnr/pppp1ppp/8/4p3/4P3/5Q2/PPPP1PPP/RNB1KBNR b KQkq - +C20 King's Pawn Game: Philidor Gambit 1. e4 e5 2. d4 d6 3. dxe5 Bd7 e2e4 e7e5 d2d4 d7d6 d4e5 c8d7 rn1qkbnr/pppb1ppp/3p4/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Tortoise Opening 1. e4 e5 2. Bd3 e2e4 e7e5 f1d3 rnbqkbnr/pppp1ppp/8/4p3/4P3/3B4/PPPP1PPP/RNBQK1NR b KQkq - +C20 King's Pawn Game: Wayward Queen Attack 1. e4 e5 2. Qh5 e2e4 e7e5 d1h5 rnbqkbnr/pppp1ppp/8/4p2Q/4P3/8/PPPP1PPP/RNB1KBNR b KQkq - +C20 King's Pawn Game: Wayward Queen Attack, Kiddie Countergambit 1. e4 e5 2. Qh5 Nf6 e2e4 e7e5 d1h5 g8f6 rnbqkb1r/pppp1ppp/5n2/4p2Q/4P3/8/PPPP1PPP/RNB1KBNR w KQkq - +C20 King's Pawn Game: Wayward Queen Attack, Mellon Gambit 1. e4 e5 2. Qh5 Nc6 3. Bc4 Nh6 4. d3 g6 5. Qf3 f6 6. Ne2 d5 e2e4 e7e5 d1h5 b8c6 f1c4 g8h6 d2d3 g7g6 h5f3 f7f6 g1e2 d7d5 r1bqkb1r/ppp4p/2n2ppn/3pp3/2B1P3/3P1Q2/PPP1NPPP/RNB1K2R w KQkq - +C20 King's Pawn Game: Weber Gambit 1. e4 e5 2. d3 d5 3. exd5 c6 4. dxc6 Nxc6 e2e4 e7e5 d2d3 d7d5 e4d5 c7c6 d5c6 b8c6 r1bqkbnr/pp3ppp/2n5/4p3/8/3P4/PPP2PPP/RNBQKBNR w KQkq - +C20 King's Pawn Opening 1. e4 e5 2. b3 e2e4 e7e5 b2b3 rnbqkbnr/pppp1ppp/8/4p3/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +C20 King's Pawn Opening: Speers 1. e4 e5 2. Qg4 Nf6 3. Qf5 e2e4 e7e5 d1g4 g8f6 g4f5 rnbqkb1r/pppp1ppp/5n2/4pQ2/4P3/8/PPPP1PPP/RNB1KBNR b KQkq - +C20 King's Pawn Opening: Van Hooydoon Gambit 1. e4 e5 2. Qe2 Nc6 3. c3 Nf6 4. Nf3 Bc5 5. d4 exd4 6. cxd4 Nxd4 e2e4 e7e5 d1e2 b8c6 c2c3 g8f6 g1f3 f8c5 d2d4 e5d4 c3d4 c6d4 r1bqk2r/pppp1ppp/5n2/2b5/3nP3/5N2/PP2QPPP/RNB1KB1R w KQkq - +C20 Portuguese Opening 1. e4 e5 2. Bb5 e2e4 e7e5 f1b5 rnbqkbnr/pppp1ppp/8/1B2p3/4P3/8/PPPP1PPP/RNBQK1NR b KQkq - +C20 Portuguese Opening: Miguel Gambit 1. e4 e5 2. Bb5 Bc5 3. b4 e2e4 e7e5 f1b5 f8c5 b2b4 rnbqk1nr/pppp1ppp/8/1Bb1p3/1P2P3/8/P1PP1PPP/RNBQK1NR b KQkq - +C20 Portuguese Opening: Portuguese Gambit 1. e4 e5 2. Bb5 Nf6 3. d4 e2e4 e7e5 f1b5 g8f6 d2d4 rnbqkb1r/pppp1ppp/5n2/1B2p3/3PP3/8/PPP2PPP/RNBQK1NR b KQkq - +C21 Center Game 1. e4 e5 2. d4 exd4 3. Qxd4 e2e4 e7e5 d2d4 e5d4 d1d4 rnbqkbnr/pppp1ppp/8/8/3QP3/8/PPP2PPP/RNB1KBNR b KQkq - +C21 Center Game Accepted 1. e4 e5 2. d4 exd4 e2e4 e7e5 d2d4 e5d4 rnbqkbnr/pppp1ppp/8/8/3pP3/8/PPP2PPP/RNBQKBNR w KQkq - +C21 Center Game: Halasz-McDonnell Gambit 1. e4 e5 2. d4 exd4 3. f4 e2e4 e7e5 d2d4 e5d4 f2f4 rnbqkbnr/pppp1ppp/8/8/3pPP2/8/PPP3PP/RNBQKBNR b KQkq - +C21 Center Game: Halasz-McDonnell Gambit, Crocodile Variation 1. e4 e5 2. d4 exd4 3. f4 Bc5 4. Nf3 Nc6 5. c3 e2e4 e7e5 d2d4 e5d4 f2f4 f8c5 g1f3 b8c6 c2c3 r1bqk1nr/pppp1ppp/2n5/2b5/3pPP2/2P2N2/PP4PP/RNBQKB1R b KQkq - +C21 Center Game: Kieseritzky Variation 1. e4 e5 2. d4 exd4 3. Nf3 e2e4 e7e5 d2d4 e5d4 g1f3 rnbqkbnr/pppp1ppp/8/8/3pP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C21 Center Game: Kieseritzky Variation 1. e4 e5 2. d4 exd4 3. Nf3 c5 e2e4 e7e5 d2d4 e5d4 g1f3 c7c5 rnbqkbnr/pp1p1ppp/8/2p5/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C21 Center Game: Kieseritzky Variation 1. e4 e5 2. d4 exd4 3. Nf3 c5 4. Bc4 e2e4 e7e5 d2d4 e5d4 g1f3 c7c5 f1c4 rnbqkbnr/pp1p1ppp/8/2p5/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C21 Center Game: Kieseritzky Variation 1. e4 e5 2. d4 exd4 3. Nf3 c5 4. Bc4 b5 e2e4 e7e5 d2d4 e5d4 g1f3 c7c5 f1c4 b7b5 rnbqkbnr/p2p1ppp/8/1pp5/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C21 Center Game: Lanc-Arnold Gambit 1. e4 e5 2. d4 exd4 3. Nf3 Bc5 4. c3 e2e4 e7e5 d2d4 e5d4 g1f3 f8c5 c2c3 rnbqk1nr/pppp1ppp/8/2b5/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C21 Center Game: Lanc-Arnold Gambit, Schippler Gambit 1. e4 e5 2. d4 exd4 3. Nf3 Bc5 4. c3 dxc3 5. Bc4 e2e4 e7e5 d2d4 e5d4 g1f3 f8c5 c2c3 d4c3 f1c4 rnbqk1nr/pppp1ppp/8/2b5/2B1P3/2p2N2/PP3PPP/RNBQK2R b KQkq - +C21 Center Game: Ross Gambit 1. e4 e5 2. d4 exd4 3. Bd3 e2e4 e7e5 d2d4 e5d4 f1d3 rnbqkbnr/pppp1ppp/8/8/3pP3/3B4/PPP2PPP/RNBQK1NR b KQkq - +C21 Center Game: von der Lasa Gambit 1. e4 e5 2. d4 exd4 3. Bc4 e2e4 e7e5 d2d4 e5d4 f1c4 rnbqkbnr/pppp1ppp/8/8/2BpP3/8/PPP2PPP/RNBQK1NR b KQkq - +C21 Danish Gambit 1. e4 e5 2. d4 exd4 3. c3 e2e4 e7e5 d2d4 e5d4 c2c3 rnbqkbnr/pppp1ppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR b KQkq - +C21 Danish Gambit Accepted 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 rnbqkbnr/pppp1ppp/8/8/2B1P3/8/PB3PPP/RN1QK1NR b KQkq - +C21 Danish Gambit Accepted: Chigorin Defense 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Qe7 e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 d8e7 rnb1kbnr/ppppqppp/8/8/2B1P3/8/PB3PPP/RN1QK1NR w KQkq - +C21 Danish Gambit Accepted: Classical Defense 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Nf6 e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 g8f6 rnbqkb1r/pppp1ppp/5n2/8/2B1P3/8/PB3PPP/RN1QK1NR w KQkq - +C21 Danish Gambit Accepted: Copenhagen Defense 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Bb4+ e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 f8b4 rnbqk1nr/pppp1ppp/8/8/1bB1P3/8/PB3PPP/RN1QK1NR w KQkq - +C21 Danish Gambit Accepted: Schlechter Defense 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 d5 e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 d7d5 rnbqkbnr/ppp2ppp/8/3p4/2B1P3/8/PB3PPP/RN1QK1NR w KQkq - +C21 Danish Gambit Accepted: Svenonius Defense 1. e4 e5 2. d4 exd4 3. c3 Ne7 e2e4 e7e5 d2d4 e5d4 c2c3 g8e7 rnbqkb1r/ppppnppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +C21 Danish Gambit Declined: Sorensen Defense 1. e4 e5 2. d4 exd4 3. c3 d5 e2e4 e7e5 d2d4 e5d4 c2c3 d7d5 rnbqkbnr/ppp2ppp/8/3p4/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +C22 Center Game: Berger Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 g8f6 r1bqkb1r/pppp1ppp/2n2n2/8/4P3/4Q3/PPP2PPP/RNB1KBNR w KQkq - +C22 Center Game: Charousek Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Bb4+ 5. c3 Be7 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 f8b4 c2c3 b4e7 r1bqk1nr/ppppbppp/2n5/8/4P3/2P1Q3/PP3PPP/RNB1KBNR w KQkq - +C22 Center Game: Hall Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qc4 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4c4 r1bqkbnr/pppp1ppp/2n5/8/2Q1P3/8/PPP2PPP/RNB1KBNR b KQkq - +C22 Center Game: Kupreichik Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 5. Nc3 Bb4 6. Bd2 O-O 7. O-O-O Re8 8. Bc4 d6 9. Nh3 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 g8f6 b1c3 f8b4 c1d2 e8g8 e1c1 f8e8 f1c4 d7d6 g1h3 r1bqr1k1/ppp2ppp/2np1n2/8/1bB1P3/2N1Q2N/PPPB1PPP/2KR3R b - - +C22 Center Game: Normal Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 r1bqkbnr/pppp1ppp/2n5/8/3QP3/8/PPP2PPP/RNB1KBNR w KQkq - +C22 Center Game: Paulsen Attack Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 r1bqkbnr/pppp1ppp/2n5/8/4P3/4Q3/PPP2PPP/RNB1KBNR b KQkq - +C22 Center Game: l'Hermet Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 f5 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 f7f5 r1bqkbnr/pppp2pp/2n5/5p2/4P3/4Q3/PPP2PPP/RNB1KBNR w KQkq - +C23 Bishop's Opening 1. e4 e5 2. Bc4 e2e4 e7e5 f1c4 rnbqkbnr/pppp1ppp/8/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Anderssen Gambit 1. e4 e5 2. Bc4 b5 3. Bxb5 c6 e2e4 e7e5 f1c4 b7b5 c4b5 c7c6 rnbqkbnr/p2p1ppp/2p5/1B2p3/4P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Boi Variation 1. e4 e5 2. Bc4 Bc5 e2e4 e7e5 f1c4 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Calabrese Countergambit 1. e4 e5 2. Bc4 f5 e2e4 e7e5 f1c4 f7f5 rnbqkbnr/pppp2pp/8/4pp2/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Calabrese Countergambit, Jaenisch Variation 1. e4 e5 2. Bc4 f5 3. d3 e2e4 e7e5 f1c4 f7f5 d2d3 rnbqkbnr/pppp2pp/8/4pp2/2B1P3/3P4/PPP2PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Four Pawns Gambit 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 exf4 5. Nf3 Be7 6. d4 Bh4+ 7. g3 fxg3 8. O-O gxh2+ 9. Kh1 e2e4 e7e5 f1c4 f8c5 b2b4 c5b4 f2f4 e5f4 g1f3 b4e7 d2d4 e7h4 g2g3 f4g3 e1g1 g3h2 g1h1 rnbqk1nr/pppp1ppp/8/8/2BPP2b/5N2/P1P4p/RNBQ1R1K b kq - +C23 Bishop's Opening: Khan Gambit 1. e4 e5 2. Bc4 d5 e2e4 e7e5 f1c4 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Lewis Countergambit 1. e4 e5 2. Bc4 Bc5 3. c3 d5 e2e4 e7e5 f1c4 f8c5 c2c3 d7d5 rnbqk1nr/ppp2ppp/8/2bpp3/2B1P3/2P5/PP1P1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Lewis Countergambit 1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 e2e4 e7e5 f1c4 f8c5 c2c3 d7d5 c4d5 g8f6 rnbqk2r/ppp2ppp/5n2/2bBp3/4P3/2P5/PP1P1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Lewis Countergambit, Walker Variation 1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 5. d4 e2e4 e7e5 f1c4 f8c5 c2c3 d7d5 c4d5 g8f6 d2d4 rnbqk2r/ppp2ppp/5n2/2bBp3/3PP3/2P5/PP3PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Lewis Gambit 1. e4 e5 2. Bc4 Bc5 3. d4 e2e4 e7e5 f1c4 f8c5 d2d4 rnbqk1nr/pppp1ppp/8/2b1p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Lisitsyn Variation 1. e4 e5 2. Bc4 c6 3. d4 d5 4. exd5 cxd5 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. dxe5 Nxe5 8. Ne2 e2e4 e7e5 f1c4 c7c6 d2d4 d7d5 e4d5 c6d5 c4b5 c8d7 b5d7 b8d7 d4e5 d7e5 g1e2 r2qkbnr/pp3ppp/8/3pn3/8/8/PPP1NPPP/RNBQK2R b KQkq - +C23 Bishop's Opening: Lopez Gambit 1. e4 e5 2. Bc4 Bc5 3. Qe2 Nc6 4. c3 Nf6 5. f4 e2e4 e7e5 f1c4 f8c5 d1e2 b8c6 c2c3 g8f6 f2f4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1PP2/2P5/PP1PQ1PP/RNB1K1NR b KQkq - +C23 Bishop's Opening: Lopez Variation 1. e4 e5 2. Bc4 Bc5 3. Qe2 e2e4 e7e5 f1c4 f8c5 d1e2 rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/8/PPPPQPPP/RNB1K1NR b KQkq - +C23 Bishop's Opening: Lopez Variation, Lopez Gambit 1. e4 e5 2. Bc4 Bc5 3. Qe2 Nf6 4. f4 e2e4 e7e5 f1c4 f8c5 d1e2 g8f6 f2f4 rnbqk2r/pppp1ppp/5n2/2b1p3/2B1PP2/8/PPPPQ1PP/RNB1K1NR b KQkq - +C23 Bishop's Opening: McDonnell Gambit 1. e4 e5 2. Bc4 Bc5 3. b4 e2e4 e7e5 f1c4 f8c5 b2b4 rnbqk1nr/pppp1ppp/8/2b1p3/1PB1P3/8/P1PP1PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: McDonnell Gambit, La Bourdonnais-Denker Gambit 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. c3 e2e4 e7e5 f1c4 f8c5 b2b4 c5b4 c2c3 rnbqk1nr/pppp1ppp/8/4p3/1bB1P3/2P5/P2P1PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: McDonnell Gambit, McDonnell Double Gambit 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 e2e4 e7e5 f1c4 f8c5 b2b4 c5b4 f2f4 rnbqk1nr/pppp1ppp/8/4p3/1bB1PP2/8/P1PP2PP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Philidor Counterattack 1. e4 e5 2. Bc4 c6 e2e4 e7e5 f1c4 c7c6 rnbqkbnr/pp1p1ppp/2p5/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Philidor Variation 1. e4 e5 2. Bc4 Bc5 3. c3 e2e4 e7e5 f1c4 f8c5 c2c3 rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/2P5/PP1P1PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Pratt Variation 1. e4 e5 2. Bc4 Bc5 3. c3 Nf6 4. d4 exd4 5. e5 d5 6. exf6 dxc4 7. Qh5 O-O e2e4 e7e5 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5 e5f6 d5c4 d1h5 e8g8 rnbq1rk1/ppp2ppp/5P2/2b4Q/2pp4/2P5/PP3PPP/RNB1K1NR w KQ - +C23 Bishop's Opening: Stein Gambit 1. e4 e5 2. Bc4 Bc5 3. f4 e2e4 e7e5 f1c4 f8c5 f2f4 rnbqk1nr/pppp1ppp/8/2b1p3/2B1PP2/8/PPPP2PP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Thorold Gambit 1. e4 e5 2. Bc4 b5 3. Bxb5 f5 e2e4 e7e5 f1c4 b7b5 c4b5 f7f5 rnbqkbnr/p1pp2pp/8/1B2pp2/4P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: del Rio Variation 1. e4 e5 2. Bc4 Bc5 3. c3 Qg5 e2e4 e7e5 f1c4 f8c5 c2c3 d8g5 rnb1k1nr/pppp1ppp/8/2b1p1q1/2B1P3/2P5/PP1P1PPP/RNBQK1NR w KQkq - +C24 Bishop's Opening: Berlin Defense 1. e4 e5 2. Bc4 Nf6 e2e4 e7e5 f1c4 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C24 Bishop's Opening: Berlin Defense, Greco Gambit 1. e4 e5 2. Bc4 Nf6 3. f4 e2e4 e7e5 f1c4 g8f6 f2f4 rnbqkb1r/pppp1ppp/5n2/4p3/2B1PP2/8/PPPP2PP/RNBQK1NR b KQkq - +C24 Bishop's Opening: Kitchener Folly 1. e4 e5 2. Bc4 Nf6 3. d3 Be7 4. Nf3 O-O e2e4 e7e5 f1c4 g8f6 d2d3 f8e7 g1f3 e8g8 rnbq1rk1/ppppbppp/5n2/4p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQ - +C24 Bishop's Opening: Krejcik Gambit 1. e4 e5 2. Bc4 Nf6 3. f3 Bc5 4. Ne2 Nc6 5. b4 e2e4 e7e5 f1c4 g8f6 f2f3 f8c5 g1e2 b8c6 b2b4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/1PB1P3/5P2/P1PPN1PP/RNBQK2R b KQkq - +C24 Bishop's Opening: Pachman Gambit 1. e4 e5 2. Bc4 Nf6 3. Ne2 Nxe4 4. Nec3 e2e4 e7e5 f1c4 g8f6 g1e2 f6e4 e2c3 rnbqkb1r/pppp1ppp/8/4p3/2B1n3/2N5/PPPP1PPP/RNBQK2R b KQkq - +C24 Bishop's Opening: Ponziani Gambit 1. e4 e5 2. Bc4 Nf6 3. d4 e2e4 e7e5 f1c4 g8f6 d2d4 rnbqkb1r/pppp1ppp/5n2/4p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq - +C24 Bishop's Opening: Urusov Gambit, Panov Variation 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 d5 5. exd5 Bb4+ 6. c3 Qe7+ e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 g1f3 d7d5 e4d5 f8b4 c2c3 d8e7 rnb1k2r/ppp1qppp/5n2/3P4/1bBp4/2P2N2/PP3PPP/RNBQK2R w KQkq - +C24 Bishop's Opening: Vienna Hybrid 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nc3 e2e4 e7e5 f1c4 g8f6 d2d3 b8c6 b1c3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2NP4/PPP2PPP/R1BQK1NR b KQkq - +C24 Bishop's Opening: Warsaw Gambit 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. c3 e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 c2c3 rnbqkb1r/pppp1ppp/5n2/8/2BpP3/2P5/PP3PPP/RNBQK1NR b KQkq - +C25 Vienna Game 1. e4 e5 2. Nc3 e2e4 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - +C25 Vienna Game: Anderssen Defense 1. e4 e5 2. Nc3 Bc5 e2e4 e7e5 b1c3 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +C25 Vienna Game: Fyfe Gambit 1. e4 e5 2. Nc3 Nc6 3. d4 e2e4 e7e5 b1c3 b8c6 d2d4 r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +C25 Vienna Game: Giraffe Attack 1. e4 e5 2. Nc3 Bc5 3. Qg4 e2e4 e7e5 b1c3 f8c5 d1g4 rnbqk1nr/pppp1ppp/8/2b1p3/4P1Q1/2N5/PPPP1PPP/R1B1KBNR b KQkq - +C25 Vienna Game: Hamppe-Meitner Variation 1. e4 e5 2. Nc3 Bc5 3. Na4 e2e4 e7e5 b1c3 f8c5 c3a4 rnbqk1nr/pppp1ppp/8/2b1p3/N3P3/8/PPPP1PPP/R1BQKBNR b KQkq - +C25 Vienna Game: Hamppe-Muzio Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 r1bqkbnr/pppp1p1p/2n5/8/2B1Ppp1/2N2N2/PPPP2PP/R1BQ1RK1 b kq - +C25 Vienna Game: Hamppe-Muzio, Dubois Variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3 7. Qxf3 Ne5 8. Qxf4 Qf6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 c6e5 f3f4 d8f6 r1b1kbnr/pppp1p1p/5q2/4n3/2B1PQ2/2N5/PPPP2PP/R1B2RK1 w kq - +C25 Vienna Game: Max Lange Defense 1. e4 e5 2. Nc3 Nc6 e2e4 e7e5 b1c3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +C25 Vienna Game: Omaha Gambit 1. e4 e5 2. Nc3 d6 3. f4 e2e4 e7e5 b1c3 d7d6 f2f4 rnbqkbnr/ppp2ppp/3p4/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C25 Vienna Game: Paulsen Variation 1. e4 e5 2. Nc3 Nc6 3. g3 e2e4 e7e5 b1c3 b8c6 g2g3 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq - +C25 Vienna Game: Paulsen Variation 1. e4 e5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 Bc5 5. Nge2 d5 e2e4 e7e5 b1c3 b8c6 g2g3 g8f6 f1g2 f8c5 g1e2 d7d5 r1bqk2r/ppp2ppp/2n2n2/2bpp3/4P3/2N3P1/PPPPNPBP/R1BQK2R w KQkq - +C25 Vienna Game: Paulsen Variation, Mariotti Gambit 1. e4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 h5 5. Nf3 h4 e2e4 e7e5 b1c3 b8c6 g2g3 f8c5 f1g2 h7h5 g1f3 h5h4 r1bqk1nr/pppp1pp1/2n5/2b1p3/4P2p/2N2NP1/PPPP1PBP/R1BQK2R w KQkq - +C25 Vienna Game: Philidor Countergambit 1. e4 e5 2. Nc3 Nc6 3. d4 f5 e2e4 e7e5 b1c3 b8c6 d2d4 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C25 Vienna Game: Pierce Gambit, Rushmere Attack 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 g4 6. Bc4 gxf3 7. O-O d5 8. exd5 Bg4 9. dxc6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 f1c4 g4f3 e1g1 d7d5 e4d5 c8g4 d5c6 r2qkbnr/ppp2p1p/2P5/8/2BP1pb1/2N2p2/PPP3PP/R1BQ1RK1 b kq - +C25 Vienna Game: Stanley Variation, Meitner-Mieses Gambit 1. e4 e5 2. Nc3 Nc6 3. Bc4 Bc5 4. Qg4 Qf6 5. Nd5 e2e4 e7e5 b1c3 b8c6 f1c4 f8c5 d1g4 d8f6 c3d5 r1b1k1nr/pppp1ppp/2n2q2/2bNp3/2B1P1Q1/8/PPPP1PPP/R1B1K1NR b KQkq - +C25 Vienna Game: Vienna Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 e2e4 e7e5 b1c3 b8c6 f2f4 r1bqkbnr/pppp1ppp/2n5/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C25 Vienna Game: Vienna Gambit, Cunningham Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 Be7 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 f8e7 r1bqk1nr/ppppbppp/2n5/8/4Pp2/2N2N2/PPPP2PP/R1BQKB1R w KQkq - +C25 Vienna Game: Vienna Gambit, Hamppe-Allgaier Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 r1bqkbnr/pppp1p1p/2n5/6N1/4PppP/2N5/PPPP2P1/R1BQKB1R b KQkq - +C25 Vienna Game: Vienna Gambit, Hamppe-Allgaier Gambit, Alapin Variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 d7d6 r1bqkbnr/ppp2p1p/2np4/6N1/4PppP/2N5/PPPP2P1/R1BQKB1R w KQkq - +C25 Vienna Game: Vienna Gambit, Hamppe-Allgaier Gambit, Thorold Variation 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Nc3 g5 5. h4 g4 6. Ng5 h6 7. Nxf7 Kxf7 8. d4 e2e4 e7e5 f2f4 e5f4 g1f3 b8c6 b1c3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d2d4 r1bq1bnr/pppp1k2/2n4p/8/3PPppP/2N5/PPP3P1/R1BQKB1R b KQ - +C25 Vienna Game: Vienna Gambit, Hamppe-Muzio Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 r1bqkbnr/pppp1p1p/2n5/8/2B1Pp2/2N2p2/PPPP2PP/R1BQ1RK1 w kq - +C25 Vienna Game: Vienna Gambit, Pierce Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 d2d4 r1bqkbnr/pppp1p1p/2n5/6p1/3PPp2/2N2N2/PPP3PP/R1BQKB1R b KQkq - +C25 Vienna Game: Vienna Gambit, Quelle Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 Bc5 4. fxe5 d6 e2e4 e7e5 b1c3 b8c6 f2f4 f8c5 f4e5 d7d6 r1bqk1nr/ppp2ppp/2np4/2b1P3/4P3/2N5/PPPP2PP/R1BQKBNR w KQkq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 r1bqkbnr/pppp1ppp/2n5/8/3PPp2/2N5/PPP3PP/R1BQKBNR b KQkq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Fraser-Minckwitz Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 b6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 b7b6 r1b1kbnr/p1pp1ppp/1pn5/8/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Knight Variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 r1bqkbnr/pppp1ppp/2n5/8/4Pp2/2N2N2/PPPP2PP/R1BQKB1R b KQkq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Main Line 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 r1b1kbnr/pppp1ppp/2n5/8/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR b kq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Paulsen Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 d7d6 r1b1kbnr/ppp2ppp/2np4/8/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Sörensen Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 g5 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 g7g5 r1b1kbnr/pppp1p1p/2n5/6p1/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Zukertort Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d5 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 d7d5 r1b1kbnr/ppp2ppp/2n5/3p4/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq - +C25 Vienna Game: Zhuravlev Countergambit 1. e4 e5 2. Nc3 Bb4 3. Qg4 Nf6 e2e4 e7e5 b1c3 f8b4 d1g4 g8f6 rnbqk2r/pppp1ppp/5n2/4p3/1b2P1Q1/2N5/PPPP1PPP/R1B1KBNR w KQkq - +C26 Bishop's Opening: Horwitz Gambit 1. e4 e5 2. Bc4 Nf6 3. Nc3 b5 e2e4 e7e5 f1c4 g8f6 b1c3 b7b5 rnbqkb1r/p1pp1ppp/5n2/1p2p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq - +C26 Bishop's Opening: Vienna Hybrid, Spielmann Attack 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 e2e4 e7e5 b1c3 g8f6 f1c4 f8c5 d2d3 rnbqk2r/pppp1ppp/5n2/2b1p3/2B1P3/2NP4/PPP2PPP/R1BQK1NR b KQkq - +C26 Vienna Game: Falkbeer Variation 1. e4 e5 2. Nc3 Nf6 e2e4 e7e5 b1c3 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +C26 Vienna Game: Mengarini Variation 1. e4 e5 2. Nc3 Nf6 3. a3 e2e4 e7e5 b1c3 g8f6 a2a3 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/P1N5/1PPP1PPP/R1BQKBNR b KQkq - +C26 Vienna Game: Mieses Variation 1. e4 e5 2. Nc3 Nf6 3. g3 e2e4 e7e5 b1c3 g8f6 g2g3 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq - +C26 Vienna Game: Mieses Variation, Erben Gambit 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 c6 e2e4 e7e5 b1c3 g8f6 g2g3 d7d5 e4d5 c7c6 rnbqkb1r/pp3ppp/2p2n2/3Pp3/8/2N3P1/PPPP1P1P/R1BQKBNR w KQkq - +C26 Vienna Game: Paulsen Variation, Pollock Gambit 1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 Nc6 5. Nge2 d5 6. exd5 e2e4 e7e5 b1c3 g8f6 g2g3 f8c5 f1g2 b8c6 g1e2 d7d5 e4d5 r1bqk2r/ppp2ppp/2n2n2/2bPp3/8/2N3P1/PPPPNPBP/R1BQK2R b KQkq - +C26 Vienna Game: Stanley Variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 e2e4 e7e5 b1c3 g8f6 f1c4 rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR b KQkq - +C26 Vienna Game: Stanley Variation, Eifel Gambit 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. Nge2 b5 e2e4 e7e5 b1c3 g8f6 f1c4 f8c5 g1e2 b7b5 rnbqk2r/p1pp1ppp/5n2/1pb1p3/2B1P3/2N5/PPPPNPPP/R1BQK2R w KQkq - +C26 Vienna Game: Stanley Variation, Reversed Spanish 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bb4 e2e4 e7e5 b1c3 g8f6 f1c4 f8b4 rnbqk2r/pppp1ppp/5n2/4p3/1bB1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq - +C26 Vienna Game: Vienna Gambit 1. e4 e5 2. Nc3 Nf6 3. f4 e2e4 e7e5 b1c3 g8f6 f2f4 rnbqkb1r/pppp1ppp/5n2/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C27 Bishop's Opening: Boden-Kieseritzky Gambit 1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. Nc3 e2e4 e7e5 g1f3 g8f6 f1c4 f6e4 b1c3 rnbqkb1r/pppp1ppp/8/4p3/2B1n3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C27 Bishop's Opening: Boden-Kieseritzky Gambit, Lichtenhein Defense 1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. Nc3 d5 e2e4 e7e5 g1f3 g8f6 f1c4 f6e4 b1c3 d7d5 rnbqkb1r/ppp2ppp/8/3pp3/2B1n3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C27 Vienna Game: Adams' Gambit 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. d4 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 b8c6 d2d4 r1bqkb1r/pppp1ppp/2nn4/4p2Q/3P4/1BN5/PPP2PPP/R1B1K1NR b KQkq - +C27 Vienna Game: Frankenstein-Dracula Variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 rnbqkb1r/pppp1ppp/8/4p3/2B1n3/2N5/PPPP1PPP/R1BQK1NR w KQkq - +C27 Vienna Game: Stanley Variation, Alekhine Variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 6. Nf3 Nc6 7. Nxe5 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 f8e7 g1f3 b8c6 f3e5 r1bqk2r/ppppbppp/2nn4/4N2Q/8/1BN5/PPPP1PPP/R1B1K2R b KQkq - +C27 Vienna Game: Stanley Variation, Frankenstein-Dracula Variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qe7 9. Nxc7+ Kd8 10. Nxa8 b6 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 b8c6 c3b5 g7g6 h5f3 f7f5 f3d5 d8e7 b5c7 e8d8 c7a8 b7b6 N1bk1b1r/p2pq2p/1pnn2p1/3Qpp2/8/1B6/PPPP1PPP/R1B1K1NR w KQ - +C27 Vienna Game: Stanley Variation, Monster Declined 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 f8e7 rnbqk2r/ppppbppp/3n4/4p2Q/8/1BN5/PPPP1PPP/R1B1K1NR w KQkq - +C28 Bishop's Opening: Vienna Hybrid, Hromádka Variation 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. d3 Bb4 5. Ne2 e2e4 e7e5 b1c3 b8c6 f1c4 g8f6 d2d3 f8b4 g1e2 r1bqk2r/pppp1ppp/2n2n2/4p3/1bB1P3/2NP4/PPP1NPPP/R1BQK2R b KQkq - +C28 Vienna Game: Stanley Variation, Bronstein Gambit 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. f4 Nxe4 5. Nf3 e2e4 e7e5 b1c3 b8c6 f1c4 g8f6 f2f4 f6e4 g1f3 r1bqkb1r/pppp1ppp/2n5/4p3/2B1nP2/2N2N2/PPPP2PP/R1BQK2R b KQkq - +C28 Vienna Game: Stanley Variation, Three Knights Variation 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 e2e4 e7e5 b1c3 b8c6 f1c4 g8f6 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq - +C29 Vienna Game: Heyde Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5 6. d4 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3 f7f5 d2d4 rnbqkb1r/ppp3pp/8/3pPp2/3Pn3/2N2Q2/PPP3PP/R1B1KBNR b KQkq - +C29 Vienna Game: Vienna Gambit, Bardeleben Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3 f7f5 rnbqkb1r/ppp3pp/8/3pPp2/4n3/2N2Q2/PPPP2PP/R1B1KBNR w KQkq f6 +C29 Vienna Game: Vienna Gambit, Breyer Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 g1f3 f8e7 rnbqk2r/ppp1bppp/8/3pP3/4n3/2N2N2/PPPP2PP/R1BQKB1R w KQkq - +C29 Vienna Game: Vienna Gambit, Kaufmann Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Bg4 6. Qe2 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 g1f3 c8g4 d1e2 rn1qkb1r/ppp2ppp/8/3pP3/4n1b1/2N2N2/PPPPQ1PP/R1B1KB1R b KQkq - +C29 Vienna Game: Vienna Gambit, Main Line 1. e4 e5 2. Nc3 Nf6 3. f4 d5 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 rnbqkb1r/ppp2ppp/5n2/3pp3/4PP2/2N5/PPPP2PP/R1BQKBNR w KQkq - +C29 Vienna Game: Vienna Gambit, Modern Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d2d3 rnbqkb1r/ppp2ppp/8/3pP3/4n3/2NP4/PPP3PP/R1BQKBNR b KQkq - +C29 Vienna Game: Vienna Gambit, Paulsen Attack 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3 rnbqkb1r/ppp2ppp/8/3pP3/4n3/2N2Q2/PPPP2PP/R1B1KBNR b KQkq - +C29 Vienna Game: Vienna Gambit, Steinitz Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. d3 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 d2d3 rnbqkb1r/ppp2ppp/5n2/3pp3/4PP2/2NP4/PPP3PP/R1BQKBNR b KQkq - +C29 Vienna Game: Vienna Gambit, Wurzburger Trap 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Qh4+ 6. g3 Nxg3 7. Nf3 Qh5 8. Nxd5 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d2d3 d8h4 g2g3 e4g3 g1f3 h4h5 c3d5 rnb1kb1r/ppp2ppp/8/3NP2q/8/3P1Nn1/PPP4P/R1BQKB1R b KQkq - +C30 King's Gambit 1. e4 e5 2. f4 e2e4 e7e5 f2f4 rnbqkbnr/pppp1ppp/8/4p3/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +C30 King's Gambit Declined: Classical Variation 1. e4 e5 2. f4 Bc5 e2e4 e7e5 f2f4 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Classical Variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 rnbqk1nr/ppp2ppp/3p4/2b1p3/4PP2/2P2N2/PP1P2PP/RNBQKB1R b KQkq - +C30 King's Gambit Declined: Classical Variation, Euwe Attack 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Bg4 5. fxe5 dxe5 6. Qa4+ e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 c8g4 f4e5 d6e5 d1a4 rn1qk1nr/ppp2ppp/8/2b1p3/Q3P1b1/2P2N2/PP1P2PP/RNB1KB1R b KQkq - +C30 King's Gambit Declined: Classical Variation, Rotlewi Countergambit 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. b4 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 b2b4 rnbqk1nr/ppp2ppp/3p4/2b1p3/1P2PP2/5N2/P1PP2PP/RNBQKB1R b KQkq - +C30 King's Gambit Declined: Classical Variation, Rubinstein Countergambit 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 f7f5 rnbqk1nr/ppp3pp/3p4/2b1pp2/4PP2/2P2N2/PP1P2PP/RNBQKB1R w KQkq - +C30 King's Gambit Declined: Classical, Hanham Variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nd7 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 b1c3 b8d7 r1bqk1nr/pppn1ppp/3p4/2b1p3/4PP2/2N2N2/PPPP2PP/R1BQKB1R w KQkq - +C30 King's Gambit Declined: Classical, Réti Variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5 5. fxe5 dxe5 6. d4 exd4 7. Bc4 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 f7f5 f4e5 d6e5 d2d4 e5d4 f1c4 rnbqk1nr/ppp3pp/8/2b2p2/2BpP3/2P2N2/PP4PP/RNBQK2R b KQkq - +C30 King's Gambit Declined: Classical, Soldatenkov Variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. fxe5 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 f4e5 rnbqk1nr/ppp2ppp/3p4/2b1P3/4P3/5N2/PPPP2PP/RNBQKB1R b KQkq - +C30 King's Gambit Declined: Classical, Svenonius Variation 1. e4 e5 2. Bc4 Nc6 3. Nc3 Nf6 4. d3 Bc5 5. f4 d6 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 exf4 e2e4 e7e5 f1c4 b8c6 b1c3 g8f6 d2d3 f8c5 f2f4 d7d6 g1f3 c8g4 h2h3 g4f3 d1f3 e5f4 r2qk2r/ppp2ppp/2np1n2/2b5/2B1Pp2/2NP1Q1P/PPP3P1/R1B1K2R w KQkq - +C30 King's Gambit Declined: Hobbs-Zilbermints Gambit 1. e4 e5 2. f4 Nc6 3. Nf3 g5 4. fxg5 h6 e2e4 e7e5 f2f4 b8c6 g1f3 g7g5 f4g5 h7h6 r1bqkbnr/pppp1p2/2n4p/4p1P1/4P3/5N2/PPPP2PP/RNBQKB1R w KQkq - +C30 King's Gambit Declined: Keene Defense 1. e4 e5 2. f4 Qh4+ 3. g3 Qe7 e2e4 e7e5 f2f4 d8h4 g2g3 h4e7 rnb1kbnr/ppppqppp/8/4p3/4PP2/6P1/PPPP3P/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Keene's Defense 1. e4 e5 2. f4 Qh4+ e2e4 e7e5 f2f4 d8h4 rnb1kbnr/pppp1ppp/8/4p3/4PP1q/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Keene's Defense 1. e4 e5 2. f4 Qh4+ 3. g3 e2e4 e7e5 f2f4 d8h4 g2g3 rnb1kbnr/pppp1ppp/8/4p3/4PP1q/6P1/PPPP3P/RNBQKBNR b KQkq - +C30 King's Gambit Declined: Mafia Defense 1. e4 c5 2. f4 e5 e2e4 c7c5 f2f4 e7e5 rnbqkbnr/pp1p1ppp/8/2p1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Miles Defense 1. e4 e5 2. f4 Nc6 3. Nf3 f5 e2e4 e7e5 f2f4 b8c6 g1f3 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/4PP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C30 King's Gambit Declined: Norwalde Variation 1. e4 e5 2. f4 Qf6 e2e4 e7e5 f2f4 d8f6 rnb1kbnr/pppp1ppp/5q2/4p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Norwalde Variation, Bücker Gambit 1. e4 e5 2. f4 Qf6 3. Nc3 Qxf4 4. Nf3 Bb4 5. Bc4 e2e4 e7e5 f2f4 d8f6 b1c3 f6f4 g1f3 f8b4 f1c4 rnb1k1nr/pppp1ppp/8/4p3/1bB1Pq2/2N2N2/PPPP2PP/R1BQK2R b KQkq - +C30 King's Gambit Declined: Norwalde Variation, Schubert Variation 1. e4 e5 2. f4 Qf6 3. Nc3 Qxf4 4. d4 e2e4 e7e5 f2f4 d8f6 b1c3 f6f4 d2d4 rnb1kbnr/pppp1ppp/8/4p3/3PPq2/2N5/PPP3PP/R1BQKBNR b KQkq - +C30 King's Gambit Declined: Panteldakis Countergambit 1. e4 e5 2. f4 f5 e2e4 e7e5 f2f4 f7f5 rnbqkbnr/pppp2pp/8/4pp2/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Panteldakis Countergambit, Greco Variation 1. e4 e5 2. f4 f5 3. exf5 Qh4+ e2e4 e7e5 f2f4 f7f5 e4f5 d8h4 rnb1kbnr/pppp2pp/8/4pP2/5P1q/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Panteldakis Countergambit, Pawn Sacrifice Line 1. e4 e5 2. f4 f5 3. exf5 exf4 4. Qh5+ g6 5. fxg6 Qe7+ 6. Kd1 e2e4 e7e5 f2f4 f7f5 e4f5 e5f4 d1h5 g7g6 f5g6 d8e7 e1d1 rnb1kbnr/ppppq2p/6P1/7Q/5p2/8/PPPP2PP/RNBK1BNR b kq - +C30 King's Gambit Declined: Panteldakis Countergambit, Schiller's Defense 1. e4 e5 2. f4 f5 3. exf5 Bc5 e2e4 e7e5 f2f4 f7f5 e4f5 f8c5 rnbqk1nr/pppp2pp/8/2b1pP2/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Panteldakis Countergambit, Shirazi Line 1. e4 e5 2. f4 f5 3. exf5 exf4 4. Qh5+ Ke7 e2e4 e7e5 f2f4 f7f5 e4f5 e5f4 d1h5 e8e7 rnbq1bnr/ppppk1pp/8/5P1Q/5p2/8/PPPP2PP/RNB1KBNR w KQ - +C30 King's Gambit Declined: Panteldakis Countergambit, Symmetrical Variation 1. e4 e5 2. f4 f5 3. exf5 exf4 4. Nf3 d5 5. d4 Bd6 6. Bd3 e2e4 e7e5 f2f4 f7f5 e4f5 e5f4 g1f3 d7d5 d2d4 f8d6 f1d3 rnbqk1nr/ppp3pp/3b4/3p1P2/3P1p2/3B1N2/PPP3PP/RNBQK2R b KQkq - +C30 King's Gambit Declined: Petrov's Defense 1. e4 e5 2. f4 Nf6 e2e4 e7e5 f2f4 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Queen's Knight Defense 1. e4 e5 2. f4 Nc6 e2e4 e7e5 f2f4 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Senechaud Countergambit 1. e4 e5 2. f4 Bc5 3. Nf3 g5 e2e4 e7e5 f2f4 f8c5 g1f3 g7g5 rnbqk1nr/pppp1p1p/8/2b1p1p1/4PP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C30 King's Gambit Declined: Soller-Zilbermints Gambit 1. e4 e5 2. f4 f6 3. fxe5 Nc6 e2e4 e7e5 f2f4 f7f6 f4e5 b8c6 r1bqkbnr/pppp2pp/2n2p2/4P3/4P3/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Zilbermints Double Gambit 1. e4 e5 2. f4 Nc6 3. Nf3 g5 e2e4 e7e5 f2f4 b8c6 g1f3 g7g5 r1bqkbnr/pppp1p1p/2n5/4p1p1/4PP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C30 King's Gambit: Zilbermints Double Countergambit 1. e4 e5 2. f4 g5 e2e4 e7e5 f2f4 g7g5 rnbqkbnr/pppp1p1p/8/4p1p1/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit 1. e4 e5 2. f4 d5 e2e4 e7e5 f2f4 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit Accepted 1. e4 e5 2. f4 d5 3. exd5 e2e4 e7e5 f2f4 d7d5 e4d5 rnbqkbnr/ppp2ppp/8/3Pp3/5P2/8/PPPP2PP/RNBQKBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Anderssen Attack 1. e4 e5 2. f4 d5 3. exd5 e4 4. Bb5+ e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 f1b5 rnbqkbnr/ppp2ppp/8/1B1P4/4pP2/8/PPPP2PP/RNBQK1NR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Blackburne Attack 1. e4 e5 2. f4 d5 3. Nf3 e2e4 e7e5 f2f4 d7d5 g1f3 rnbqkbnr/ppp2ppp/8/3pp3/4PP2/5N2/PPPP2PP/RNBQKB1R b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 rnbqkbnr/ppp2ppp/8/3P4/4pP2/3P4/PPP3PP/RNBQKBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Morphy Defense 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. exd5 e4 5. d3 Bb4 6. Bd2 e3 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 e4d5 e5e4 d2d3 f8b4 c1d2 e4e3 rnbqk2r/ppp2ppp/5n2/3P4/1b3P2/2NPp3/PPPB2PP/R2QKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Hinrichsen Gambit 1. e4 e5 2. f4 d5 3. d4 e2e4 e7e5 f2f4 d7d5 d2d4 rnbqkbnr/ppp2ppp/8/3pp3/3PPP2/8/PPP3PP/RNBQKBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Miles Gambit 1. e4 e5 2. f4 d5 3. exd5 Bc5 e2e4 e7e5 f2f4 d7d5 e4d5 f8c5 rnbqk1nr/ppp2ppp/8/2bPp3/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Milner-Barry Variation 1. e4 e5 2. f4 d5 3. Nc3 e2e4 e7e5 f2f4 d7d5 b1c3 rnbqkbnr/ppp2ppp/8/3pp3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Modern Transfer 1. e4 e5 2. f4 d5 3. exd5 exf4 e2e4 e7e5 f2f4 d7d5 e4d5 e5f4 rnbqkbnr/ppp2ppp/8/3P4/5p2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Nimzowitsch-Marshall Countergambit 1. e4 e5 2. f4 d5 3. exd5 c6 e2e4 e7e5 f2f4 d7d5 e4d5 c7c6 rnbqkbnr/pp3ppp/2p5/3Pp3/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Pickler Gambit 1. e4 e5 2. f4 d5 3. exd5 c6 4. dxc6 Bc5 e2e4 e7e5 f2f4 d7d5 e4d5 c7c6 d5c6 f8c5 rnbqk1nr/pp3ppp/2P5/2b1p3/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Rubinstein Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. Qe2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 b1c3 g8f6 d1e2 rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/2N5/PPPPQ1PP/R1B1KBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Staunton Line 1. e4 e5 2. f4 d5 3. exd5 e4 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 rnbqkbnr/ppp2ppp/8/3P4/4pP2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 Van Geet Opening: Grünfeld Defense, Steiner Gambit 1. e4 e5 2. f4 d5 3. Nc3 dxe4 4. Nxe4 e2e4 e7e5 f2f4 d7d5 b1c3 d5e4 c3e4 rnbqkbnr/ppp2ppp/8/4p3/4NP2/8/PPPP2PP/R1BQKBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Alapin Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf2+ 8. Kd1 Qxd5+ 9. Nfd2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c5f2 e1d1 d8d5 f3d2 rnb1k2r/ppp2ppp/8/3q4/4nP2/8/PPPNQbPP/RNBK1B1R b kq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Qe2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 d1e2 rnbqkb1r/ppp2ppp/8/3P4/4nP2/8/PPP1Q1PP/RNB1KBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit Accepted 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 rnbqkb1r/ppp2ppp/5n2/3P4/4PP2/8/PPP3PP/RNBQKBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Keres Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nd2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 b1d2 rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/3P4/PPPN2PP/R1BQKBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Main Line 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c8f5 rn1qk2r/ppp2ppp/8/2bP1b2/4nP2/5N2/PPP1Q1PP/RNB1KB1R w KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Old Line 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Qe2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d1e2 rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/3P4/PPP1Q1PP/RNB1KBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Qe2 Qxd5 7. Nd2 f5 8. g4 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 d1e2 d8d5 b1d2 f7f5 g2g4 rnb1kb1r/ppp3pp/8/3q1p2/4nPP1/8/PPPNQ2P/R1B1KBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Tarrasch Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5 8. g4 O-O e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c8f5 g2g4 e8g8 rn1q1rk1/ppp2ppp/8/2bP1b2/4nPP1/5N2/PPP1Q2P/RNB1KB1R w KQ - +C33 King's Gambit Accepted 1. e4 e5 2. f4 exf4 e2e4 e7e5 f2f4 e5f4 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPP2PP/RNBQKBNR w KQkq - +C33 King's Gambit Accepted: Basman Gambit 1. e4 e5 2. f4 exf4 3. Qe2 e2e4 e7e5 f2f4 e5f4 d1e2 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPPQ1PP/RNB1KBNR b KQkq - +C33 King's Gambit Accepted: Bishop's Gambit 1. e4 e5 2. f4 exf4 3. Bc4 e2e4 e7e5 f2f4 e5f4 f1c4 rnbqkbnr/pppp1ppp/8/8/2B1Pp2/8/PPPP2PP/RNBQK1NR b KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Anderssen Defense 1. e4 e5 2. f4 exf4 3. Bc4 g5 e2e4 e7e5 f2f4 e5f4 f1c4 g7g5 rnbqkbnr/pppp1p1p/8/6p1/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Anderssen Variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 c6 e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 c7c6 rnbqkbnr/pp3ppp/2p5/3B4/4Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Bledow Countergambit 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Nf6 e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 g8f6 rnbqkb1r/ppp2ppp/5n2/3B4/4Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Bledow Variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 rnbqkbnr/ppp2ppp/8/3p4/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Boden Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Nc6 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 b8c6 r1b1kbnr/pppp1ppp/2n5/8/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Bogoljubov Defense 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 c6 e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3 c7c6 rnbqkb1r/pp1p1ppp/2p2n2/8/2B1Pp2/2N5/PPPP2PP/R1BQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Bogoljubov Variation 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3 rnbqkb1r/pppp1ppp/5n2/8/2B1Pp2/2N5/PPPP2PP/R1BQK1NR b KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Boren-Svenonius Variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Qh4+ 5. Kf1 Bd6 e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 d8h4 e1f1 f8d6 rnb1k1nr/ppp2ppp/3b4/3B4/4Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Bryan Countergambit 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 b5 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 b7b5 rnb1kbnr/p1pp1ppp/8/1p6/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Chigorin's Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 d5 5. Bxd5 g5 6. g3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 d7d5 c4d5 g7g5 g2g3 rnb1kbnr/ppp2p1p/8/3B2p1/4Pp1q/6P1/PPPP3P/RNBQ1KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Classical Defense 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Ne7 5. Nc3 g5 6. d4 Bg7 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g8e7 b1c3 g7g5 d2d4 f8g7 rnb1k2r/ppppnpbp/8/6p1/2BPPp1q/2N5/PPP3PP/R1BQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Classical Defense, Cozio Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Qf3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 d1f3 rnb1kbnr/pppp1p1p/8/6p1/2B1Pp1q/5Q2/PPPP2PP/RNB2KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Cozio Defense 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 rnbqkb1r/pppp1ppp/5n2/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Cozio Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 d6 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 d7d6 rnb1kbnr/ppp2ppp/3p4/8/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, First Jaenisch Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Nf6 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g8f6 rnb1kb1r/pppp1ppp/5n2/8/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Fraser Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. g3 fxg3 7. Qf3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 g2g3 f4g3 d1f3 rnb1k1nr/pppp1pbp/8/6p1/2B1P2q/2N2Qp1/PPPP3P/R1B2KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Gianutio Gambit 1. e4 e5 2. f4 exf4 3. Bc4 f5 e2e4 e7e5 f2f4 e5f4 f1c4 f7f5 rnbqkbnr/pppp2pp/8/5p2/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Greco Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Bc5 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 f8c5 rnb1k1nr/pppp1ppp/8/2b5/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Grimm Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 d6 7. e5 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 d2d4 d7d6 e4e5 rnb1k1nr/ppp2pbp/3p4/4P1p1/2BP1p1q/2N5/PPP3PP/R1BQ1KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Kieseritzky Gambit 1. e4 e5 2. f4 exf4 3. Bc4 b5 e2e4 e7e5 f2f4 e5f4 f1c4 b7b5 rnbqkbnr/p1pp1ppp/8/1p6/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Lopez Defense 1. e4 e5 2. f4 exf4 3. Bc4 c6 e2e4 e7e5 f2f4 e5f4 f1c4 c7c6 rnbqkbnr/pp1p1ppp/2p5/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Lopez Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 rnb1kbnr/pppp1p1p/8/6p1/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Maurian Defense 1. e4 e5 2. f4 exf4 3. Bc4 Nc6 e2e4 e7e5 f2f4 e5f4 f1c4 b8c6 r1bqkbnr/pppp1ppp/2n5/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, McDonnell Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 Ne7 7. g3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 d2d4 g8e7 g2g3 rnb1k2r/ppppnpbp/8/6p1/2BPPp1q/2N3P1/PPP4P/R1BQ1KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, McDonnell Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. g3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 g2g3 rnb1k1nr/pppp1pbp/8/6p1/2B1Pp1q/2N3P1/PPPP3P/R1BQ1KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Paulsen Attack 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 Bb4 5. e5 e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3 f8b4 e4e5 rnbqk2r/pppp1ppp/5n2/4P3/1bB2p2/2N5/PPPP2PP/R1BQK1NR b KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Steinitz Defense 1. e4 e5 2. f4 exf4 3. Bc4 Ne7 e2e4 e7e5 f2f4 e5f4 f1c4 g8e7 rnbqkb1r/ppppnppp/8/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Breyer Gambit 1. e4 e5 2. f4 exf4 3. Qf3 e2e4 e7e5 f2f4 e5f4 d1f3 rnbqkbnr/pppp1ppp/8/8/4Pp2/5Q2/PPPP2PP/RNB1KBNR b KQkq - +C33 King's Gambit Accepted: Carrera Gambit 1. e4 e5 2. f4 exf4 3. Qh5 e2e4 e7e5 f2f4 e5f4 d1h5 rnbqkbnr/pppp1ppp/8/7Q/4Pp2/8/PPPP2PP/RNB1KBNR b KQkq - +C33 King's Gambit Accepted: Dodo Variation 1. e4 e5 2. f4 exf4 3. Qg4 e2e4 e7e5 f2f4 e5f4 d1g4 rnbqkbnr/pppp1ppp/8/8/4PpQ1/8/PPPP2PP/RNB1KBNR b KQkq - +C33 King's Gambit Accepted: Eisenberg Variation 1. e4 e5 2. f4 exf4 3. Nh3 e2e4 e7e5 f2f4 e5f4 g1h3 rnbqkbnr/pppp1ppp/8/8/4Pp2/7N/PPPP2PP/RNBQKB1R b KQkq - +C33 King's Gambit Accepted: Gaga Gambit 1. e4 e5 2. f4 exf4 3. g3 e2e4 e7e5 f2f4 e5f4 g2g3 rnbqkbnr/pppp1ppp/8/8/4Pp2/6P1/PPPP3P/RNBQKBNR b KQkq - +C33 King's Gambit Accepted: Lopez-Gianutio Countergambit, Hein Variation 1. e4 e5 2. f4 exf4 3. Bc4 f5 4. Qe2 Qh4+ 5. Kd1 fxe4 6. Nc3 Kd8 e2e4 e7e5 f2f4 e5f4 f1c4 f7f5 d1e2 d8h4 e1d1 f5e4 b1c3 e8d8 rnbk1bnr/pppp2pp/8/8/2B1pp1q/2N5/PPPPQ1PP/R1BK2NR w - - +C33 King's Gambit Accepted: Orsini Gambit 1. e4 e5 2. f4 exf4 3. b3 e2e4 e7e5 f2f4 e5f4 b2b3 rnbqkbnr/pppp1ppp/8/8/4Pp2/1P6/P1PP2PP/RNBQKBNR b KQkq - +C33 King's Gambit Accepted: Paris Gambit 1. e4 e5 2. f4 exf4 3. Ne2 e2e4 e7e5 f2f4 e5f4 g1e2 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPPN1PP/RNBQKB1R b KQkq - +C33 King's Gambit Accepted: Polerio Gambit 1. e4 e5 2. f4 exf4 3. d4 e2e4 e7e5 f2f4 e5f4 d2d4 rnbqkbnr/pppp1ppp/8/8/3PPp2/8/PPP3PP/RNBQKBNR b KQkq - +C33 King's Gambit Accepted: Schurig Gambit 1. e4 e5 2. f4 exf4 3. Bb5 e2e4 e7e5 f2f4 e5f4 f1b5 rnbqkbnr/pppp1ppp/8/1B6/4Pp2/8/PPPP2PP/RNBQK1NR b KQkq - +C33 King's Gambit Accepted: Schurig Gambit 1. e4 e5 2. f4 exf4 3. Bd3 e2e4 e7e5 f2f4 e5f4 f1d3 rnbqkbnr/pppp1ppp/8/8/4Pp2/3B4/PPPP2PP/RNBQK1NR b KQkq - +C33 King's Gambit Accepted: Stamma Gambit 1. e4 e5 2. f4 exf4 3. h4 e2e4 e7e5 f2f4 e5f4 h2h4 rnbqkbnr/pppp1ppp/8/8/4Pp1P/8/PPPP2P1/RNBQKBNR b KQkq - +C33 King's Gambit Accepted: Tartakower Gambit 1. e4 e5 2. f4 exf4 3. Be2 e2e4 e7e5 f2f4 e5f4 f1e2 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPPB1PP/RNBQK1NR b KQkq - +C33 King's Gambit Accepted: Tartakower Gambit, Weiss Defense 1. e4 e5 2. f4 exf4 3. Be2 f5 4. exf5 d6 e2e4 e7e5 f2f4 e5f4 f1e2 f7f5 e4f5 d7d6 rnbqkbnr/ppp3pp/3p4/5P2/5p2/8/PPPPB1PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Tumbleweed 1. e4 e5 2. f4 exf4 3. Kf2 e2e4 e7e5 f2f4 e5f4 e1f2 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPP1KPP/RNBQ1BNR b kq - +C33 Van Geet Opening: Nowokunski Gambit 1. e4 e5 2. f4 exf4 3. Nc3 e2e4 e7e5 f2f4 e5f4 b1c3 rnbqkbnr/pppp1ppp/8/8/4Pp2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C34 King's Gambit Accepted: Becker Defense 1. e4 e5 2. f4 exf4 3. Nf3 h6 e2e4 e7e5 f2f4 e5f4 g1f3 h7h6 rnbqkbnr/pppp1pp1/7p/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Bonsch-Osmolovsky Variation 1. e4 e5 2. f4 exf4 3. Nf3 Ne7 e2e4 e7e5 f2f4 e5f4 g1f3 g8e7 rnbqkb1r/ppppnppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Fischer Defense 1. e4 e5 2. f4 exf4 3. Nf3 d6 e2e4 e7e5 f2f4 e5f4 g1f3 d7d6 rnbqkbnr/ppp2ppp/3p4/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Fischer Defense, Schulder Gambit 1. e4 e5 2. f4 exf4 3. Nf3 d6 4. b4 e2e4 e7e5 f2f4 e5f4 g1f3 d7d6 b2b4 rnbqkbnr/ppp2ppp/3p4/8/1P2Pp2/5N2/P1PP2PP/RNBQKB1R b KQkq - +C34 King's Gambit Accepted: Fischer Defense, Spanish Variation 1. e4 e5 2. f4 exf4 3. Nf3 d6 4. d4 Nf6 5. Bd3 e2e4 e7e5 f2f4 e5f4 g1f3 d7d6 d2d4 g8f6 f1d3 rnbqkb1r/ppp2ppp/3p1n2/8/3PPp2/3B1N2/PPP3PP/RNBQK2R b KQkq - +C34 King's Gambit Accepted: Gianutio Countergambit 1. e4 e5 2. f4 exf4 3. Nf3 f5 e2e4 e7e5 f2f4 e5f4 g1f3 f7f5 rnbqkbnr/pppp2pp/8/5p2/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Greco Gambit 1. e4 e5 2. f4 exf4 3. Nf3 d6 4. Bc4 h6 5. d4 g5 6. h4 Bg7 e2e4 e7e5 f2f4 e5f4 g1f3 d7d6 f1c4 h7h6 d2d4 g7g5 h2h4 f8g7 rnbqk1nr/ppp2pb1/3p3p/6p1/2BPPp1P/5N2/PPP3P1/RNBQK2R w KQkq - +C34 King's Gambit Accepted: King Knight's Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 rnbqkbnr/pppp1p1p/8/6p1/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: King's Knight Gambit 1. e4 e5 2. f4 exf4 3. Nf3 e2e4 e7e5 f2f4 e5f4 g1f3 rnbqkbnr/pppp1ppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R b KQkq - +C34 King's Gambit Accepted: MacLeod Defense 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 e2e4 e7e5 f2f4 e5f4 g1f3 b8c6 r1bqkbnr/pppp1ppp/2n5/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Schallopp Defense 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 g8f6 rnbqkb1r/pppp1ppp/5n2/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Schallopp Defense, Tashkent Attack 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. g4 e2e4 e7e5 f2f4 e5f4 g1f3 g8f6 e4e5 f6h5 g2g4 rnbqkb1r/pppp1ppp/8/4P2n/5pP1/5N2/PPPP3P/RNBQKB1R b KQkq g3 +C35 King's Gambit Accepted: Cunningham Defense 1. e4 e5 2. f4 exf4 3. Nf3 Be7 e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 rnbqk1nr/ppppbppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C35 King's Gambit Accepted: Cunningham Defense, Bertin Gambit 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 e7h4 g2g3 rnbqk1nr/pppp1ppp/8/8/2B1Pp1b/5NP1/PPPP3P/RNBQK2R b KQkq - +C35 King's Gambit Accepted: Cunningham Defense, Bertin Gambit 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 fxg3 6. O-O gxh2+ 7. Kh1 e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 e7h4 g2g3 f4g3 e1g1 g3h2 g1h1 rnbqk1nr/pppp1ppp/8/8/2B1P2b/5N2/PPPP3p/RNBQ1R1K b kq - +C35 King's Gambit Accepted: Cunningham Defense, McCormick Defense 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 g8f6 rnbqk2r/ppppbppp/5n2/8/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq - +C36 King's Gambit Accepted: Abbazia Defense 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 e4d5 g8f6 rnbqkb1r/ppp2ppp/5n2/3P4/5p2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C36 King's Gambit Accepted: Abbazia Defense, Main Line 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bb5+ c6 6. dxc6 bxc6 7. Bc4 Nd5 e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 e4d5 g8f6 f1b5 c7c6 d5c6 b7c6 b5c4 f6d5 rnbqkb1r/p4ppp/2p5/3n4/2B2p2/5N2/PPPP2PP/RNBQK2R w KQkq - +C36 King's Gambit Accepted: Modern Defense 1. e4 e5 2. f4 exf4 3. Nf3 d5 e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 rnbqkbnr/ppp2ppp/8/3p4/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C36 King's Gambit Accepted: Modern Defense 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 e4d5 rnbqkbnr/ppp2ppp/8/3P4/5p2/5N2/PPPP2PP/RNBQKB1R b KQkq - +C37 King's Gambit Accepted: Australian Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. h4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 h2h4 rnbqkbnr/pppp1p1p/8/8/2B1PppP/5N2/PPPP2P1/RNBQK2R b KQkq h3 +C37 King's Gambit Accepted: Blachly Gambit 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Bc4 g5 e2e4 e7e5 f2f4 e5f4 g1f3 b8c6 f1c4 g7g5 r1bqkbnr/pppp1p1p/2n5/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq - +C37 King's Gambit Accepted: Double Muzio Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. Bxf7+ e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 e4e5 f6e5 c4f7 rnb1kbnr/pppp1B1p/8/4q3/5p2/5Q2/PPPP2PP/RNB2RK1 b kq - +C37 King's Gambit Accepted: Double Muzio Gambit, Baldwin Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. Nc3 Qd4+ 8. Kh1 Qxc4 9. Nd5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 b1c3 f6d4 g1h1 d4c4 c3d5 rnb1kbnr/pppp1p1p/8/3N4/2q1Pp2/5Q2/PPPP2PP/R1B2R1K b kq - +C37 King's Gambit Accepted: Double Muzio Gambit, Bello Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 b1c3 rnb1kbnr/pppp1p1p/5q2/8/2B1Pp2/2N2Q2/PPPP2PP/R1B2RK1 b kq - +C37 King's Gambit Accepted: Double Muzio Gambit, Paulsen Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. d3 Bh6 9. Nc3 Ne7 10. Bd2 Nbc6 11. Rae1 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 e4e5 f6e5 d2d3 f8h6 b1c3 g8e7 c1d2 b8c6 a1e1 r1b1k2r/ppppnp1p/2n4b/4q3/2B2p2/2NP1Q2/PPPB2PP/4RRK1 b kq - +C37 King's Gambit Accepted: Double Muzio Gambit, Young Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. Bxf7+ Kxf7 8. d4 Qxd4+ 9. Be3 Qf6 10. Nc3 fxe3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 c4f7 e8f7 d2d4 f6d4 c1e3 d4f6 b1c3 f4e3 rnb2bnr/pppp1k1p/5q2/8/4P3/2N1pQ2/PPP3PP/R4RK1 w - - +C37 King's Gambit Accepted: Ghulam-Kassim Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 d2d4 rnbqkbnr/pppp1p1p/8/8/2BPPpp1/5N2/PPP3PP/RNBQK2R b KQkq - +C37 King's Gambit Accepted: Ghulam-Kassim Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4 gxf3 6. Qxf3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 d2d4 g4f3 d1f3 rnbqkbnr/pppp1p1p/8/8/2BPPp2/5Q2/PPP3PP/RNB1K2R b KQkq - +C37 King's Gambit Accepted: King's Knight Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 rnbqkbnr/pppp1p1p/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R b KQkq - +C37 King's Gambit Accepted: Kotov Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4 gxf3 6. Bxf4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 d2d4 g4f3 c1f4 rnbqkbnr/pppp1p1p/8/8/2BPPB2/5p2/PPP3PP/RN1QK2R b KQkq - +C37 King's Gambit Accepted: Lolli Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+ e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 c4f7 rnbqkbnr/pppp1B1p/8/8/4Ppp1/5N2/PPPP2PP/RNBQK2R b KQkq - +C37 King's Gambit Accepted: Lolli Gambit, Young Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+ Kxf7 6. O-O gxf3 7. Qxf3 Qf6 8. d4 Qxd4+ 9. Be3 Qf6 10. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 c4f7 e8f7 e1g1 g4f3 d1f3 d8f6 d2d4 f6d4 c1e3 d4f6 b1c3 rnb2bnr/pppp1k1p/5q2/8/4Pp2/2N1BQ2/PPP3PP/R4RK1 b - - +C37 King's Gambit Accepted: McDonnell Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 b1c3 rnbqkbnr/pppp1p1p/8/8/2B1Ppp1/2N2N2/PPPP2PP/R1BQK2R b KQkq - +C37 King's Gambit Accepted: Middleton Countergambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 d6 5. O-O Bg4 6. h3 h5 7. hxg4 hxg4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 d7d6 e1g1 c8g4 h2h3 h7h5 h3g4 h5g4 rn1qkbnr/ppp2p2/3p4/6p1/2B1Ppp1/5N2/PPPP2P1/RNBQ1RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit Accepted, From's Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qe7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8e7 rnb1kbnr/ppppqp1p/8/8/2B1Pp2/5Q2/PPPP2PP/RNB2RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Brentano Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O d5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 d7d5 rnbqkbnr/ppp2p1p/8/3p4/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Holloway Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Nc6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 b8c6 r1bqkbnr/pppp1p1p/2n5/8/2B1Pp2/5Q2/PPPP2PP/RNB2RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Kling and Horwitz Counterattack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O Qe7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 d8e7 rnb1kbnr/ppppqp1p/8/8/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Sarratt Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 rnb1kbnr/pppp1p1p/5q2/8/2B1Pp2/5Q2/PPPP2PP/RNB2RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Wild Muzio Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 rnbqkbnr/pppp1p1p/8/8/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 b kq - +C37 King's Gambit Accepted: Quade Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 b1c3 rnbqkbnr/pppp1p1p/8/6p1/4Pp2/2N2N2/PPPP2PP/R1BQKB1R b KQkq - +C37 King's Gambit Accepted: Rosentreter Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 rnbqkbnr/pppp1p1p/8/6p1/3PPp2/5N2/PPP3PP/RNBQKB1R b KQkq - +C37 King's Gambit Accepted: Rosentreter Gambit, Bird Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5 Qh4+ 6. g3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 f3e5 d8h4 g2g3 rnb1kbnr/pppp1p1p/8/4N3/3PPppq/6P1/PPP4P/RNBQKB1R b KQkq - +C37 King's Gambit Accepted: Rosentreter Gambit, Sörensen Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 b1c3 rnbqkbnr/pppp1p1p/8/8/3PPpp1/2N2N2/PPP3PP/R1BQKB1R b KQkq - +C37 King's Gambit Accepted: Rosentreter Gambit, Testa Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Bxf4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 c1f4 rnbqkbnr/pppp1p1p/8/8/3PPBp1/5N2/PPP3PP/RN1QKB1R b KQkq - +C37 King's Gambit Accepted: Salvio Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 rnbqkbnr/pppp1p1p/8/4N3/2B1Ppp1/8/PPPP2PP/RNBQK2R b KQkq - +C37 King's Gambit Accepted: Salvio Gambit, Anderssen Counterattack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 d6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8h6 d2d4 d7d6 rnb1kb1r/ppp2p1p/3p3n/4N3/2BPPppq/8/PPP3PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Salvio Gambit, Cochrane Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 f3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 f4f3 rnb1kbnr/pppp1p1p/8/4N3/2B1P1pq/5p2/PPPP2PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Salvio Gambit, Santa Maria Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8f6 rnb1kb1r/pppp1p1p/5n2/4N3/2B1Pppq/8/PPPP2PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Salvio Gambit, Silberschmidt Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8h6 rnb1kb1r/pppp1p1p/7n/4N3/2B1Pppq/8/PPPP2PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Salvio Gambit, Viennese Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nc6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 b8c6 r1b1kbnr/pppp1p1p/2n5/4N3/2B1Pppq/8/PPPP2PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Silberschmidt Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 f3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8h6 d2d4 f4f3 rnb1kb1r/pppp1p1p/7n/4N3/2BPP1pq/5p2/PPP3PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Sörensen Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 f3e5 rnbqkbnr/pppp1p1p/8/4N3/3PPpp1/8/PPP3PP/RNBQKB1R b KQkq - +C38 King's Gambit Accepted: Greco Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 h6 6. d4 d6 7. Nc3 c6 8. hxg5 hxg5 9. Rxh8 Bxh8 10. Ne5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 h2h4 h7h6 d2d4 d7d6 b1c3 c7c6 h4g5 h6g5 h1h8 g7h8 f3e5 rnbqk1nb/pp3p2/2pp4/4N1p1/2BPPp2/2N5/PPP3P1/R1BQK3 b Qq - +C38 King's Gambit Accepted: Hanstein Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. O-O e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 e1g1 rnbqk1nr/pppp1pbp/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQ1RK1 b kq - +C38 King's Gambit Accepted: Mayet Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. d4 d6 6. c3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 d2d4 d7d6 c2c3 rnbqk1nr/ppp2pbp/3p4/6p1/2BPPp2/2P2N2/PP4PP/RNBQK2R b KQkq - +C38 King's Gambit Accepted: Philidor Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 h2h4 rnbqk1nr/pppp1pbp/8/6p1/2B1Pp1P/5N2/PPPP2P1/RNBQK2R b KQkq - +C38 King's Gambit Accepted: Philidor Gambit, Schultz Variation 1. e4 e5 2. f4 exf4 3. Nf3 h6 4. Bc4 d6 5. d4 g5 6. h4 Bg7 7. Qd3 e2e4 e7e5 f2f4 e5f4 g1f3 h7h6 f1c4 d7d6 d2d4 g7g5 h2h4 f8g7 d1d3 rnbqk1nr/ppp2pb1/3p3p/6p1/2BPPp1P/3Q1N2/PPP3P1/RNB1K2R b KQkq - +C38 King's Gambit Accepted: Traditional Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 rnbqk1nr/pppp1pbp/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq - +C39 King's Gambit Accepted: Allgaier Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 rnbqkbnr/pppp1p1p/8/6N1/4PppP/8/PPPP2P1/RNBQKB1R b KQkq - +C39 King's Gambit Accepted: Allgaier Gambit, Thorold Attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d2d4 rnbq1bnr/pppp1k2/7p/8/3PPppP/8/PPP3P1/RNBQKB1R b KQ - +C39 King's Gambit Accepted: Allgaier Gambit, Urusov Attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+ e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 f1c4 rnbq1bnr/pppp1k2/7p/8/2B1PppP/8/PPPP2P1/RNBQK2R b KQ - +C39 King's Gambit Accepted: Allgaier, Blackburne Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 b1c3 rnbq1bnr/pppp1k2/7p/8/4PppP/2N5/PPPP2P1/R1BQKB1R b KQ - +C39 King's Gambit Accepted: Allgaier, Cook Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4 d5 8. Bxf4 dxe4 9. Bc4+ Kg7 10. Be5+ e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d2d4 d7d5 c1f4 d5e4 f1c4 f7g7 f4e5 rnbq1bnr/ppp3k1/7p/4B3/2BPp1pP/8/PPP3P1/RN1QK2R b KQ - +C39 King's Gambit Accepted: Allgaier, Horny Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Qxg4 Nf6 8. Qxf4 Bd6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d1g4 g8f6 g4f4 f8d6 rnbq3r/pppp1k2/3b1n1p/8/4PQ1P/8/PPPP2P1/RNB1KB1R w KQ - +C39 King's Gambit Accepted: Allgaier, Schlechter Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 g8f6 rnbqkb1r/pppp1p1p/5n2/6N1/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Allgaier, Urusov Attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+ d5 8. Bxd5+ Kg7 9. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 f1c4 d7d5 c4d5 f7g7 d2d4 rnbq1bnr/ppp3k1/7p/3B4/3PPppP/8/PPP3P1/RNBQK2R b KQ - +C39 King's Gambit Accepted: Kieseritzky Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 rnbqkbnr/pppp1p1p/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Anderssen Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 rnbqk2r/ppp2p1p/3b1n2/3PN3/2B2ppP/8/PPPP2P1/RNBQK2R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Anderssen-Cordel Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. d4 Nh5 9. Bxf4 Nxf4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 d2d4 f6h5 c1f4 h5f4 rnbqk2r/ppp2p1p/3b4/3PN3/2BP1npP/8/PPP3P1/RN1QK2R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Berlin Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 rnbqkb1r/pppp1p1p/5n2/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Berlin Defense, Rubinstein Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 d2d4 rnbqkb1r/pppp1p1p/5n2/4N3/3PPppP/8/PPP3P1/RNBQKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Berlin Defense, de Riviere Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Nxg4 d5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 e5g4 d7d5 rnbqkb1r/ppp2p1p/5n2/3p4/4PpNP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 rnbqkbnr/ppp2p1p/8/3pN3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 c1f4 rnbqkb1r/ppp2p1p/5n2/3pN3/3PPBpP/8/PPP3P1/RN1QKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense, Caro Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4 Nxe4 8. Nd2 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 c1f4 f6e4 b1d2 rnbqkb1r/ppp2p1p/8/3pN3/3PnBpP/8/PPPN2P1/R2QKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense, Kaplanek Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. exd5 Qxd5 8. Nc3 Bb4 9. Kf2 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 e4d5 d8d5 b1c3 f8b4 e1f2 rnb1k2r/ppp2p1p/5n2/3qN3/1b1P1ppP/2N5/PPP2KP1/R1BQ1B1R b kq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Cotter Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 rnbqkbnr/pppp1N2/7p/8/4PppP/8/PPPP2P1/RNBQKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Kolisch Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d6 rnbqkbnr/ppp2p1p/3p4/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Long Whip 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 h7h5 rnbqkbnr/pppp1p2/8/4N2p/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nc6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 b8c6 r1bqkbnr/pppp1p1p/2n5/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Paulsen Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Bg7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 f8g7 rnbqk1nr/pppp1pbp/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Paulsen Defense Deferred 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bg7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8g7 rnbqk2r/ppp2pbp/5n2/3PN3/2B2ppP/8/PPPP2P1/RNBQK2R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Rice Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. O-O Bxe5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 e1g1 d6e5 rnbqk2r/ppp2p1p/5n2/3Pb3/2B2ppP/8/PPPP2P1/RNBQ1RK1 w kq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d8e7 rnb1kbnr/ppppqp1p/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky, Long Whip Defense, Jaenisch Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Rh7 7. d4 Bh6 8. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 h7h5 f1c4 h8h7 d2d4 f8h6 b1c3 rnbqk1n1/pppp1p1r/7b/4N2p/2BPPppP/2N5/PPP3P1/R1BQK2R b KQq - +C39 King's Gambit Accepted: Kieseritzky, Polerio Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Be7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 f8e7 rnbqk1nr/ppppbp1p/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky, Rice Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. O-O e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 e1g1 rnbqk2r/ppp2p1p/3b1n2/3PN3/2B2ppP/8/PPPP2P1/RNBQ1RK1 b kq - +C39 King's Gambit Accepted: Kieseritzky, Salvio Defense, Cozio Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7 6. d4 f5 7. Bc4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d8e7 d2d4 f7f5 f1c4 rnb1kbnr/ppppq2p/8/4Np2/2BPPppP/8/PPP3P1/RNBQK2R b KQkq - +C39 King's Gambit Accepted: King Knight's Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 rnbqkbnr/pppp1p1p/8/6p1/4Pp1P/5N2/PPPP2P1/RNBQKB1R b KQkq - +C40 Elephant Gambit 1. e4 e5 2. Nf3 d5 e2e4 e7e5 g1f3 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Elephant Gambit: Maróczy Gambit 1. e4 e5 2. Nf3 d5 3. exd5 Bd6 e2e4 e7e5 g1f3 d7d5 e4d5 f8d6 rnbqk1nr/ppp2ppp/3b4/3Pp3/8/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Elephant Gambit: Paulsen Countergambit 1. e4 e5 2. Nf3 d5 3. exd5 e4 e2e4 e7e5 g1f3 d7d5 e4d5 e5e4 rnbqkbnr/ppp2ppp/8/3P4/4p3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Elephant Gambit: Wasp Variation 1. e4 e5 2. Nf3 d5 3. Nxe5 dxe4 4. Bc4 Qg5 e2e4 e7e5 g1f3 d7d5 f3e5 d5e4 f1c4 d8g5 rnb1kbnr/ppp2ppp/8/4N1q1/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - +C40 Gunderam Defense 1. e4 e5 2. Nf3 Qe7 e2e4 e7e5 g1f3 d8e7 rnb1kbnr/ppppqppp/8/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Knight Opening 1. e4 e5 2. Nf3 e2e4 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +C40 King's Pawn Game: Busch-Gass Gambit 1. e4 e5 2. Nf3 Bc5 e2e4 e7e5 g1f3 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: Busch-Gass Gambit, Chiodini Gambit 1. e4 e5 2. Nf3 Bc5 3. Nxe5 Nc6 e2e4 e7e5 g1f3 f8c5 f3e5 b8c6 r1bqk1nr/pppp1ppp/2n5/2b1N3/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: Damiano Defense 1. e4 e5 2. Nf3 f6 e2e4 e7e5 g1f3 f7f6 rnbqkbnr/pppp2pp/5p2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: Damiano Defense, Damiano Gambit 1. e4 e5 2. Nf3 f6 3. Nxe5 fxe5 4. Qh5+ g6 5. Qxe5+ Qe7 6. Qxh8 e2e4 e7e5 g1f3 f7f6 f3e5 f6e5 d1h5 g7g6 h5e5 d8e7 e5h8 rnb1kbnQ/ppppq2p/6p1/8/4P3/8/PPPP1PPP/RNB1KB1R b KQq - +C40 King's Pawn Game: Damiano Defense, Damiano Gambit, Chigorin Gambit 1. e4 e5 2. Nf3 f6 3. Nxe5 Qe7 4. Nf3 d5 e2e4 e7e5 g1f3 f7f6 f3e5 d8e7 e5f3 d7d5 rnb1kbnr/ppp1q1pp/5p2/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: Gunderam Defense, Gunderam Gambit 1. e4 e5 2. Nf3 Qe7 3. Bc4 f5 e2e4 e7e5 g1f3 d8e7 f1c4 f7f5 rnb1kbnr/ppppq1pp/8/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C40 King's Pawn Game: Gunderam Gambit 1. e4 e5 2. Nf3 c6 e2e4 e7e5 g1f3 c7c6 rnbqkbnr/pp1p1ppp/2p5/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: La Bourdonnais Gambit 1. e4 e5 2. Nf3 Qf6 3. Bc4 Qg6 4. O-O e2e4 e7e5 g1f3 d8f6 f1c4 f6g6 e1g1 rnb1kbnr/pppp1ppp/6q1/4p3/2B1P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C40 King's Pawn Game: McConnell Defense 1. e4 e5 2. Nf3 Qf6 e2e4 e7e5 g1f3 d8f6 rnb1kbnr/pppp1ppp/5q2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Latvian Gambit 1. e4 e5 2. Nf3 f5 e2e4 e7e5 g1f3 f7f5 rnbqkbnr/pppp2pp/8/4pp2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Latvian Gambit Accepted 1. e4 e5 2. Nf3 f5 3. exf5 e2e4 e7e5 g1f3 f7f5 e4f5 rnbqkbnr/pppp2pp/8/4pP2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Bilguer Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 rnb1kbnr/ppp3pp/3p1q2/5p2/2NPP3/8/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Bronstein Attack 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Be2 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 f5e4 f1e2 rnb1kbnr/ppp3pp/3p1q2/8/2NPp3/8/PPP1BPPP/RNBQK2R b KQkq - +C40 Latvian Gambit Accepted: Bronstein Gambit 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Qh5+ g6 7. Qe2 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 f5e4 d1h5 g7g6 h5e2 rnb1kbnr/ppp4p/3p1qp1/8/2NPp3/8/PPP1QPPP/RNB1KB1R b KQkq - +C40 Latvian Gambit Accepted: Foltys Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 fxe4 5. d3 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 e5c4 f5e4 d2d3 rnb1kbnr/pppp2pp/5q2/8/2N1p3/3P4/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Foltys-Leonhardt Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 e5c4 rnb1kbnr/pppp2pp/5q2/5p2/2N1P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Leonhardt Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 fxe4 5. Nc3 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 e5c4 f5e4 b1c3 rnb1kbnr/pppp2pp/5q2/8/2N1p3/2N5/PPPP1PPP/R1BQKB1R b KQkq - +C40 Latvian Gambit Accepted: Main Line 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 rnb1kbnr/pppp2pp/5q2/4Np2/3PP3/8/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Nimzowitsch Attack 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Ne3 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 f5e4 c4e3 rnb1kbnr/ppp3pp/3p1q2/8/3Pp3/4N3/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit: Behting Variation 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. Nf7 Qxg2 6. Rf1 d5 7. Nxh8 Nf6 e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 d8g5 e5f7 g5g2 h1f1 d7d5 f7h8 g8f6 rnb1kb1N/ppp3pp/5n2/3p4/2B1p3/8/PPPP1PqP/RNBQKR2 w Qq - +C40 Latvian Gambit: Corkscrew Countergambit 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Nf6 e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 g8f6 rnbqkb1r/pppp2pp/5n2/4N3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - +C40 Latvian Gambit: Corkscrew Gambit 1. e4 e5 2. Nf3 f5 3. Nxe5 Nf6 4. Bc4 fxe4 5. Nf7 Qe7 6. Nxh8 d5 e2e4 e7e5 g1f3 f7f5 f3e5 g8f6 f1c4 f5e4 e5f7 d8e7 f7h8 d7d5 rnb1kb1N/ppp1q1pp/5n2/3p4/2B1p3/8/PPPP1PPP/RNBQK2R w KQq - +C40 Latvian Gambit: Diepstraten Countergambit 1. e4 e5 2. Nf3 f5 3. c4 e2e4 e7e5 g1f3 f7f5 c2c4 rnbqkbnr/pppp2pp/8/4pp2/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit: Fraser Defense 1. e4 e5 2. Nf3 f5 3. Nxe5 Nc6 e2e4 e7e5 g1f3 f7f5 f3e5 b8c6 r1bqkbnr/pppp2pp/2n5/4Np2/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C40 Latvian Gambit: Greco Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qe7 e2e4 e7e5 g1f3 f7f5 f3e5 d8e7 rnb1kbnr/ppppq1pp/8/4Np2/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C40 Latvian Gambit: Lobster Gambit 1. e4 e5 2. Nf3 f5 3. g4 e2e4 e7e5 g1f3 f7f5 g2g4 rnbqkbnr/pppp2pp/8/4pp2/4P1P1/5N2/PPPP1P1P/RNBQKB1R b KQkq - +C40 Latvian Gambit: Mason Countergambit 1. e4 e5 2. Nf3 f5 3. d4 e2e4 e7e5 g1f3 f7f5 d2d4 rnbqkbnr/pppp2pp/8/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit: Mayet Attack 1. e4 e5 2. Nf3 f5 3. Bc4 e2e4 e7e5 g1f3 f7f5 f1c4 rnbqkbnr/pppp2pp/8/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C40 Latvian Gambit: Mayet Attack, Morgado Defense 1. e4 e5 2. Nf3 f5 3. Bc4 Nf6 e2e4 e7e5 g1f3 f7f5 f1c4 g8f6 rnbqkb1r/pppp2pp/5n2/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C40 Latvian Gambit: Mayet Attack, Poisoned Pawn Variation 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. d4 Qxg2 e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 d8g5 d2d4 g5g2 rnb1kbnr/pppp2pp/8/4N3/2BPp3/8/PPP2PqP/RNBQK2R w KQkq - +C40 Latvian Gambit: Mayet Attack, Polerio-Svedenborg Variation 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 d5 e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 d7d5 rnbqkbnr/ppp3pp/8/3pN3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - +C40 Latvian Gambit: Mayet Attack, Strautins Gambit 1. e4 e5 2. Nf3 f5 3. Bc4 b5 e2e4 e7e5 g1f3 f7f5 f1c4 b7b5 rnbqkbnr/p1pp2pp/8/1p2pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C40 Latvian Gambit: Mlotkowski Variation 1. e4 e5 2. Nf3 f5 3. Nc3 e2e4 e7e5 g1f3 f7f5 b1c3 rnbqkbnr/pppp2pp/8/4pp2/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C40 Latvian Gambit: Senechaud Gambit 1. e4 e5 2. Nf3 f5 3. b4 e2e4 e7e5 g1f3 f7f5 b2b4 rnbqkbnr/pppp2pp/8/4pp2/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +C41 Philidor Defense 1. e4 e5 2. Nf3 d6 e2e4 e7e5 g1f3 d7d6 rnbqkbnr/ppp2ppp/3p4/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C41 Philidor Defense 1. e4 e5 2. Nf3 d6 3. d4 e2e4 e7e5 g1f3 d7d6 d2d4 rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense 1. e4 e5 2. Nf3 d6 3. Bc4 e2e4 e7e5 g1f3 d7d6 f1c4 rnbqkbnr/ppp2ppp/3p4/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C41 Philidor Defense 1. e4 e5 2. Nf3 d6 3. Bc4 Be7 e2e4 e7e5 g1f3 d7d6 f1c4 f8e7 rnbqk1nr/ppp1bppp/3p4/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C41 Philidor Defense: Albin-Blackburne Gambit 1. e4 e5 2. Nf3 d6 3. d4 Bg4 4. dxe5 Nd7 e2e4 e7e5 g1f3 d7d6 d2d4 c8g4 d4e5 b8d7 r2qkbnr/pppn1ppp/3p4/4P3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Berger Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 O-O 7. O-O c5 8. Nf3 Nc6 9. Bg5 Be6 10. Re1 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g8f6 b1c3 f8e7 f1e2 e8g8 e1g1 c7c5 d4f3 b8c6 c1g5 c8e6 f1e1 r2q1rk1/pp2bppp/2npbn2/2p3B1/4P3/2N2N2/PPP1BPPP/R2QR1K1 b - - +C41 Philidor Defense: Bird Gambit 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. c3 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 c2c3 rnbqkbnr/ppp2ppp/3p4/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Boden Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Bd7 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 d1d4 c8d7 rn1qkbnr/pppb1ppp/3p4/8/3QP3/5N2/PPP2PPP/RNB1KB1R w KQkq - +C41 Philidor Defense: Exchange Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 rnbqkbnr/ppp2ppp/3p4/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Exchange Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 rnbqkbnr/ppp2ppp/3p4/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Exchange Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g8f6 rnbqkb1r/ppp2ppp/3p1n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Hanham Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 r1bqkbnr/pppn1ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Hanham Variation, Delmar Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. c3 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 c2c3 r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/2P2N2/PP3PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Hanham Variation, Krause Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 e1g1 r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C41 Philidor Defense: Hanham Variation, Schlechter Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Nc3 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 b1c3 r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +C41 Philidor Defense: Hanham Variation, Sharp Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 Nb6 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 d7b6 r1bqkbnr/ppp2ppp/1n1p4/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C41 Philidor Defense: Hanham Variation, Steiner Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O Be7 6. dxe5 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 e1g1 f8e7 d4e5 r1bqk1nr/pp1nbppp/2pp4/4P3/2B1P3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C41 Philidor Defense: Hanham, Berger Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5 Nh6 6. f4 Be7 7. O-O O-O 8. c3 d5 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 f3g5 g8h6 f2f4 f8e7 e1g1 e8g8 c2c3 d6d5 r1bq1rk1/pp1nbppp/2p4n/3pp1N1/2BPPP2/2P5/PP4PP/RNBQ1RK1 w - - +C41 Philidor Defense: Hanham, Kmoch Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 f3g5 r1bqkbnr/pp1n1ppp/2pp4/4p1N1/2BPP3/8/PPP2PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Larsen Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 g6 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g7g6 rnbqkbnr/ppp2p1p/3p2p1/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Lion Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 r1bqkb1r/pppn1ppp/3p1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +C41 Philidor Defense: Lion Variation, Bishop Sacrifice 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Bxf7+ e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 f8e7 c4f7 r1bqk2r/pppnbBpp/3p1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +C41 Philidor Defense: Lion Variation, Delayed Bishop Sacrifice 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. dxe5 dxe5 7. Bxf7+ e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 g1f3 e7e5 f1c4 f8e7 d4e5 d6e5 c4f7 r1bqk2r/pppnbBpp/5n2/4p3/4P3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +C41 Philidor Defense: Lion Variation, Forcing Line 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+ Rxf7 8. Ne6 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 f8e7 f3g5 e8g8 c4f7 f8f7 g5e6 r1bq2k1/pppnbrpp/3pNn2/4p3/3PP3/2N5/PPP2PPP/R1BQK2R b KQ - +C41 Philidor Defense: Lion Variation, Lion's Claw 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 h6 6. O-O Be7 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 h7h6 e1g1 f8e7 r1bqk2r/pppnbpp1/3p1n1p/4p3/2BPP3/2N2N2/PPP2PPP/R1BQ1RK1 w kq - +C41 Philidor Defense: Lion Variation, Shirov Gambit 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Nc3 Ngf6 5. g4 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 b1c3 g8f6 g2g4 r1bqkb1r/pppn1ppp/3p1n2/4p3/3PP1P1/2N2N2/PPP2P1P/R1BQKB1R b KQkq - +C41 Philidor Defense: Lion Variation, Sozin Variation 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Qe2 c6 8. a4 exd4 e2e4 d7d6 d2d4 g8f6 b1c3 e7e5 g1f3 b8d7 f1c4 f8e7 e1g1 e8g8 d1e2 c7c6 a2a4 e5d4 r1bq1rk1/pp1nbppp/2pp1n2/8/P1BpP3/2N2N2/1PP1QPPP/R1B2RK1 w - - +C41 Philidor Defense: Lopez Countergambit 1. e4 e5 2. Nf3 d6 3. Bc4 f5 e2e4 e7e5 g1f3 d7d6 f1c4 f7f5 rnbqkbnr/ppp3pp/3p4/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C41 Philidor Defense: Lopez Countergambit, Jaenisch Variation 1. e4 e5 2. Nf3 d6 3. d4 f5 4. Bc4 exd4 5. Ng5 Nh6 6. Nxh7 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 f1c4 e5d4 f3g5 g8h6 g5h7 rnbqkb1r/ppp3pN/3p3n/5p2/2BpP3/8/PPP2PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Morphy Gambit 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Bc4 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f1c4 rnbqkbnr/ppp2ppp/3p4/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Nimzowitsch Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 rnbqkb1r/ppp2ppp/3p1n2/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Nimzowitsch Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5 rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Nimzowitsch Variation, Klein Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Bc4 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 f1c4 rnbqkb1r/ppp2ppp/3p1n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Nimzowitsch Variation, Rellstab Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Qd5 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5 f6e4 d1d5 rnbqkb1r/ppp2ppp/3p4/3QP3/4n3/5N2/PPP2PPP/RNB1KB1R b KQkq - +C41 Philidor Defense: Nimzowitsch Variation, Sokolsky Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Nbd2 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5 f6e4 b1d2 rnbqkb1r/ppp2ppp/3p4/4P3/4n3/5N2/PPPN1PPP/R1BQKB1R b KQkq - +C41 Philidor Defense: Nimzowitsch, Larobok Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+ e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 f8e7 f3g5 e8g8 c4f7 r1bq1rk1/pppnbBpp/3p1n2/4p1N1/3PP3/2N5/PPP2PPP/R1BQK2R b KQ - +C41 Philidor Defense: Nimzowitsch, Locock Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Ng5 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 f3g5 rnbqkb1r/ppp2ppp/3p1n2/4p1N1/3PP3/8/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Paulsen Attack 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 d5 5. exd5 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 d6d5 e4d5 rnbqkbnr/ppp2ppp/8/3P4/3N4/8/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Philidor Countergambit 1. e4 e5 2. Nf3 d6 3. d4 f5 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 rnbqkbnr/ppp3pp/3p4/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Philidor Countergambit, Berger Variation 1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6 Bc5 7. Nc3 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 d4e5 f5e4 f3g5 d6d5 e5e6 f8c5 b1c3 rnbqk1nr/ppp3pp/4P3/2bp2N1/4p3/2N5/PPP2PPP/R1BQKB1R b KQkq - +C41 Philidor Defense: Philidor Countergambit, Zukertort Variation 1. e4 e5 2. Nf3 d6 3. d4 f5 4. Nc3 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 b1c3 rnbqkbnr/ppp3pp/3p4/4pp2/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +C41 Philidor Defense: Philidor Countergambit, del Rio Attack 1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 d4e5 f5e4 f3g5 d6d5 e5e6 rnbqkbnr/ppp3pp/4P3/3p2N1/4p3/8/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Philidor Gambit 1. e4 e5 2. Nf3 d6 3. d4 Bd7 e2e4 e7e5 g1f3 d7d6 d2d4 c8d7 rn1qkbnr/pppb1ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Steinitz Variation 1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. c3 e2e4 e7e5 g1f3 d7d6 f1c4 f8e7 c2c3 rnbqk1nr/ppp1bppp/3p4/4p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 e2e4 e7e5 g1f3 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 3. Nxe5 e2e4 e7e5 g1f3 g8f6 f3e5 rnbqkb1r/pppp1ppp/5n2/4N3/4P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 rnbqkb1r/ppp2ppp/3p1n2/4N3/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 rnbqkb1r/ppp2ppp/3p1n2/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 rnbqkb1r/ppp2ppp/3p4/8/4n3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game: Classical Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 rnbqkb1r/ppp2ppp/3p4/8/3Pn3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C42 Russian Game: Classical Attack, Berger Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. Nbd2 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 c8g4 c2c3 f7f5 b1d2 r2qk2r/ppp1b1pp/2n5/3p1p2/3Pn1b1/2PB1N2/PP1N1PPP/R1BQR1K1 b kq - +C42 Russian Game: Classical Attack, Chigorin Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 r1bqk2r/ppp1bppp/2n5/3p4/3Pn3/3B1N2/PPP2PPP/RNBQR1K1 b kq - +C42 Russian Game: Classical Attack, Chigorin Variation, Browne Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nb4 9. cxd5 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 e1g1 f8e7 c2c4 c6b4 c4d5 r1bqk2r/ppp1bppp/8/3P4/1n1Pn3/3B1N2/PP3PPP/RNBQ1RK1 b kq - +C42 Russian Game: Classical Attack, Chigorin Variation, Main Line 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nb4 9. Be2 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 e1g1 f8e7 c2c4 c6b4 d3e2 r1bqk2r/ppp1bppp/8/3p4/1nPPn3/5N2/PP2BPPP/RNBQ1RK1 b kq - +C42 Russian Game: Classical Attack, Closed Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Nf6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 e4f6 rnbqkb1r/ppp2ppp/3p1n2/8/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +C42 Russian Game: Classical Attack, Jaenisch Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 e1g1 f8e7 c2c4 r1bqk2r/ppp1bppp/2n5/3p4/2PPn3/3B1N2/PP3PPP/RNBQ1RK1 b kq - +C42 Russian Game: Classical Attack, Krause Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Re1 Bg4 9. c3 f5 10. c4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 e1g1 f8e7 f1e1 c8g4 c2c3 f7f5 c3c4 r2qk2r/ppp1b1pp/2n5/3p1p2/2PPn1b1/3B1N2/PP3PPP/RNBQR1K1 b kq - +C42 Russian Game: Classical Attack, Marshall Trap 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4 9. cxd5 f5 10. Re1 Bxh2+ e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c8g4 c4d5 f7f5 f1e1 d6h2 rn1q1rk1/ppp3pp/8/3P1p2/3Pn1b1/3B1N2/PP3PPb/RNBQR1K1 w - - +C42 Russian Game: Classical Attack, Marshall Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 rnbqk2r/ppp2ppp/3b4/3p4/3Pn3/3B1N2/PPP2PPP/RNBQK2R w KQkq - +C42 Russian Game: Classical Attack, Marshall Variation, Chinese Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Re1 Bg4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c7c6 f1e1 c8g4 rn1q1rk1/pp3ppp/2pb4/3p4/2PPn1b1/3B1N2/PP3PPP/RNBQR1K1 w - - +C42 Russian Game: Classical Attack, Maróczy Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4 Bh4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 c8g4 c2c3 f7f5 c3c4 e7h4 r2qk2r/ppp3pp/2n5/3p1p2/2PPn1bb/3B1N2/PP3PPP/RNBQR1K1 w kq - +C42 Russian Game: Classical Attack, Mason Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 e8g8 rnbq1rk1/ppp1bppp/8/3p4/3Pn3/3B1N2/PPP2PPP/RNBQ1RK1 w - - +C42 Russian Game: Classical Attack, Mason-Showalter Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 r1bqkb1r/ppp2ppp/2n5/3p4/3Pn3/3B1N2/PPP2PPP/RNBQK2R w KQkq - +C42 Russian Game: Classical Attack, Staunton Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c7c6 rnbq1rk1/pp3ppp/2pb4/3p4/2PPn3/3B1N2/PP3PPP/RNBQ1RK1 w - - +C42 Russian Game: Classical Attack, Tarrasch Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c8g4 rn1q1rk1/ppp2ppp/3b4/3p4/2PPn1b1/3B1N2/PP3PPP/RNBQ1RK1 w - - +C42 Russian Game: Cochrane Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f7 rnbqkb1r/ppp2Npp/3p1n2/8/4P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game: Cochrane Gambit, Bishop Check Line 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. Bc4+ e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f7 e8f7 f1c4 rnbq1b1r/ppp2kpp/3p1n2/8/2B1P3/8/PPPP1PPP/RNBQK2R b KQ - +C42 Russian Game: Cochrane Gambit, Center Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. d4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f7 e8f7 d2d4 rnbq1b1r/ppp2kpp/3p1n2/8/3PP3/8/PPP2PPP/RNBQKB1R b KQ - +C42 Russian Game: Cozio Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d1e2 rnbqkb1r/ppp2ppp/3p4/8/4n3/5N2/PPPPQPPP/RNB1KB1R b KQkq - +C42 Russian Game: Damiano Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 e2e4 e7e5 g1f3 g8f6 f3e5 f6e4 rnbqkb1r/pppp1ppp/8/4N3/4n3/8/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game: Damiano Variation, Kholmov Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 4. Qe2 Qe7 e2e4 e7e5 g1f3 g8f6 f3e5 f6e4 d1e2 d8e7 rnb1kb1r/ppppqppp/8/4N3/4n3/8/PPPPQPPP/RNB1KB1R w KQkq - +C42 Russian Game: French Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d3 rnbqkb1r/ppp2ppp/3p4/8/4n3/3P1N2/PPP2PPP/RNBQKB1R b KQkq - +C42 Russian Game: Italian Variation 1. e4 e5 2. Nf3 Nf6 3. Bc4 e2e4 e7e5 g1f3 g8f6 f1c4 rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C42 Russian Game: Karklins-Martinovsky Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nd3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5d3 rnbqkb1r/ppp2ppp/3p1n2/8/4P3/3N4/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game: Kaufmann Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 c2c4 rnbqkb1r/ppp2ppp/3p4/8/2P1n3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +C42 Russian Game: Millennium Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 f1d3 rnbqkb1r/ppp2ppp/3p4/8/4n3/3B1N2/PPPP1PPP/RNBQK2R b KQkq - +C42 Russian Game: Moody Gambit 1. e4 e5 2. Nf3 Nf6 3. Qe2 Nc6 4. d4 e2e4 e7e5 g1f3 g8f6 d1e2 b8c6 d2d4 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/5N2/PPP1QPPP/RNB1KB1R b KQkq - +C42 Russian Game: Nimzowitsch Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 b1c3 rnbqkb1r/ppp2ppp/3p4/8/4n3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C42 Russian Game: Paulsen Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5c4 rnbqkb1r/ppp2ppp/3p1n2/8/2N1P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game: Stafford Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 e2e4 e7e5 g1f3 g8f6 f3e5 b8c6 r1bqkb1r/pppp1ppp/2n2n2/4N3/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game: Stafford Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 e2e4 e7e5 g1f3 g8f6 f3e5 b8c6 e5c6 d7c6 r1bqkb1r/ppp2ppp/2p2n2/8/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game: Three Knights Game 1. e4 e5 2. Nf3 Nf6 3. Nc3 e2e4 e7e5 g1f3 g8f6 b1c3 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C43 Bishop's Opening: Urusov Gambit 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 g1f3 rnbqkb1r/pppp1ppp/5n2/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C43 Bishop's Opening: Urusov Gambit, Keidansky Gambit 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 Nxe4 5. Qxd4 e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 g1f3 f6e4 d1d4 rnbqkb1r/pppp1ppp/8/8/2BQn3/5N2/PPP2PPP/RNB1K2R b KQkq - +C43 Russian Game: Modern Attack 1. e4 e5 2. Nf3 Nf6 3. d4 e2e4 e7e5 g1f3 g8f6 d2d4 rnbqkb1r/pppp1ppp/5n2/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C43 Russian Game: Modern Attack 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 rnbqkb1r/pppp1ppp/5n2/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C43 Russian Game: Modern Attack, Bardeleben Variation 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qe2 Nc5 6. Nxd4 Nc6 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1e2 e4c5 f3d4 b8c6 r1bqkb1r/pppp1ppp/2n5/2n1P3/3N4/8/PPP1QPPP/RNB1KB1R w KQkq - +C43 Russian Game: Modern Attack, Center Attack 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qxd4 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1d4 rnbqkb1r/pppp1ppp/8/4P3/3Qn3/5N2/PPP2PPP/RNB1KB1R b KQkq - +C43 Russian Game: Modern Attack, Center Variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 f1d3 rnbqkb1r/pppp1ppp/8/4p3/3Pn3/3B1N2/PPP2PPP/RNBQK2R b KQkq - +C43 Russian Game: Modern Attack, Murrey Variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 Nc6 e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 f1d3 b8c6 r1bqkb1r/pppp1ppp/2n5/4p3/3Pn3/3B1N2/PPP2PPP/RNBQK2R w KQkq - +C43 Russian Game: Modern Attack, Steinitz Variation 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qe2 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1e2 rnbqkb1r/pppp1ppp/8/4P3/3pn3/5N2/PPP1QPPP/RNB1KB1R b KQkq - +C43 Russian Game: Modern Attack, Symmetrical Variation 1. e4 e5 2. Nf3 Nf6 3. d4 d5 e2e4 e7e5 g1f3 g8f6 d2d4 d7d5 rnbqkb1r/ppp2ppp/5n2/3pp3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C43 Russian Game: Modern Attack, Symmetrical Variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 rnbqkb1r/pppp1ppp/8/4p3/3Pn3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C43 Russian Game: Modern Attack, Tal Gambit 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Bb5 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 f1b5 rnbqkb1r/pppp1ppp/8/1B2P3/3pn3/5N2/PPP2PPP/RNBQK2R b KQkq - +C43 Russian Game: Modern Attack, Trifunovic Variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. O-O O-O 7. c4 Bxe5 e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 f1d3 d7d5 f3e5 f8d6 e1g1 e8g8 c2c4 d6e5 rnbq1rk1/ppp2ppp/8/3pb3/2PPn3/3B4/PP3PPP/RNBQ1RK1 w - - +C44 Dresden Opening: The Goblin 1. e4 e5 2. Nf3 Nc6 3. c4 Nf6 4. Nxe5 e2e4 e7e5 g1f3 b8c6 c2c4 g8f6 f3e5 r1bqkb1r/pppp1ppp/2n2n2/4N3/2P1P3/8/PP1P1PPP/RNBQKB1R b KQkq - +C44 Irish Gambit 1. e4 e5 2. Nf3 Nc6 3. Nxe5 e2e4 e7e5 g1f3 b8c6 f3e5 r1bqkbnr/pppp1ppp/2n5/4N3/4P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C44 King's Knight Opening: Konstantinopolsky 1. e4 e5 2. Nf3 Nc6 3. g3 e2e4 e7e5 g1f3 b8c6 g2g3 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5NP1/PPPP1P1P/RNBQKB1R b KQkq - +C44 King's Knight Opening: Normal Variation 1. e4 e5 2. Nf3 Nc6 e2e4 e7e5 g1f3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C44 King's Pawn Game: Dresden Opening 1. e4 e5 2. Nf3 Nc6 3. c4 e2e4 e7e5 g1f3 b8c6 c2c4 r1bqkbnr/pppp1ppp/2n5/4p3/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +C44 King's Pawn Game: Pachman Wing Gambit 1. e4 e5 2. Nf3 Nc6 3. b4 e2e4 e7e5 g1f3 b8c6 b2b4 r1bqkbnr/pppp1ppp/2n5/4p3/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +C44 King's Pawn Game: Schulze-Müller Gambit 1. e4 e5 2. Nf3 Nc6 3. Nxe5 Nxe5 4. d4 e2e4 e7e5 g1f3 b8c6 f3e5 c6e5 d2d4 r1bqkbnr/pppp1ppp/8/4n3/3PP3/8/PPP2PPP/RNBQKB1R b KQkq - +C44 King's Pawn Game: Tayler Opening 1. e4 e5 2. Nf3 Nc6 3. Be2 e2e4 e7e5 g1f3 b8c6 f1e2 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5N2/PPPPBPPP/RNBQK2R b KQkq - +C44 King's Pawn Game: Tayler Opening, Basman Gambit 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d4 exd4 5. e5 e2e4 e7e5 g1f3 b8c6 f1e2 g8f6 d2d4 e5d4 e4e5 r1bqkb1r/pppp1ppp/2n2n2/4P3/3p4/5N2/PPP1BPPP/RNBQK2R b KQkq - +C44 King's Pawn Game: Tayler Opening, Inverted Hanham 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d3 d5 5. Nbd2 e2e4 e7e5 g1f3 b8c6 f1e2 g8f6 d2d3 d7d5 b1d2 r1bqkb1r/ppp2ppp/2n2n2/3pp3/4P3/3P1N2/PPPNBPPP/R1BQK2R b KQkq - +C44 Latvian Gambit: Clam Gambit 1. e4 e5 2. Nf3 Nc6 3. d3 f5 4. exf5 e2e4 e7e5 g1f3 b8c6 d2d3 f7f5 e4f5 r1bqkbnr/pppp2pp/2n5/4pP2/8/3P1N2/PPP2PPP/RNBQKB1R b KQkq - +C44 Ponziani Opening 1. e4 e5 2. Nf3 Nc6 3. c3 e2e4 e7e5 g1f3 b8c6 c2c3 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - +C44 Ponziani Opening: Caro Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Bd7 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 c8d7 r2qkbnr/pppb1ppp/2n5/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq - +C44 Ponziani Opening: Jaenisch Counterattack 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 e2e4 e7e5 g1f3 b8c6 c2c3 g8f6 r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +C44 Ponziani Opening: Leonhardt Variation 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Nf6 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 g8f6 r1bqkb1r/ppp2ppp/2n2n2/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq - +C44 Ponziani Opening: Neumann Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. Bc4 e2e4 e7e5 g1f3 b8c6 c2c3 g8f6 f1c4 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C44 Ponziani Opening: Ponziani Countergambit 1. e4 e5 2. Nf3 Nc6 3. c3 f5 e2e4 e7e5 g1f3 b8c6 c2c3 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +C44 Ponziani Opening: Ponziani Countergambit, Cordel Variation 1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5 fxe4 6. Ng5 Nb8 7. Nxe4 Nf6 8. Bd3 Be7 e2e4 e7e5 g1f3 b8c6 c2c3 f7f5 d2d4 d7d6 d4d5 f5e4 f3g5 c6b8 g5e4 g8f6 f1d3 f8e7 rnbqk2r/ppp1b1pp/3p1n2/3Pp3/4N3/2PB4/PP3PPP/RNBQK2R w KQkq - +C44 Ponziani Opening: Ponziani Countergambit, Schmidt Attack 1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5 e2e4 e7e5 g1f3 b8c6 c2c3 f7f5 d2d4 d7d6 d4d5 r1bqkbnr/ppp3pp/2np4/3Ppp2/4P3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C44 Ponziani Opening: Romanishin Variation 1. e4 e5 2. Nf3 Nc6 3. c3 Be7 e2e4 e7e5 g1f3 b8c6 c2c3 f8e7 r1bqk1nr/ppppbppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +C44 Ponziani Opening: Réti Variation 1. e4 e5 2. Nf3 Nc6 3. c3 Nge7 e2e4 e7e5 g1f3 b8c6 c2c3 g8e7 r1bqkb1r/ppppnppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +C44 Ponziani Opening: Spanish Variation 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Bb5 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 f1b5 r1bqkbnr/ppp2ppp/2n5/1B1pp3/4P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C44 Ponziani Opening: Spanish Variation, Harrwitz Attack, Nikitin Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Bb5 dxe4 5. Nxe5 Qd5 6. Qa4 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 f1b5 d5e4 f3e5 d8d5 d1a4 r1b1kbnr/ppp2ppp/2n5/1B1qN3/Q3p3/2P5/PP1P1PPP/RNB1K2R b KQkq - +C44 Ponziani Opening: Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 f6 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 f7f6 r1bqkbnr/ppp3pp/2n2p2/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq - +C44 Ponziani Opening: Vukovic Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 Nxe4 5. d5 Bc5 e2e4 e7e5 g1f3 b8c6 c2c3 g8f6 d2d4 f6e4 d4d5 f8c5 r1bqk2r/pppp1ppp/2n5/2bPp3/4n3/2P2N2/PP3PPP/RNBQKB1R w KQkq - +C44 Scotch Game 1. e4 e5 2. Nf3 Nc6 3. d4 e2e4 e7e5 g1f3 b8c6 d2d4 r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C44 Scotch Game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 r1bqkbnr/pppp1ppp/2n5/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C44 Scotch Game: Benima Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1c4 f8e7 d2d4 e5d4 r1bqk1nr/ppppbppp/2n5/8/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Cochrane Variation 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 4. Nxe5 Ne6 5. Bc4 c6 6. O-O Nf6 7. Nxf7 e2e4 e7e5 g1f3 b8c6 d2d4 c6d4 f3e5 d4e6 f1c4 c7c6 e1g1 g8f6 e5f7 r1bqkb1r/pp1p1Npp/2p1nn2/8/2B1P3/8/PPP2PPP/RNBQ1RK1 b kq - +C44 Scotch Game: Cochrane Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. bxc3 Ba5 7. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 c2c3 d4c3 b2c3 b4a5 e4e5 r1bqk1nr/pppp1ppp/2n5/b3P3/2B5/2P2N2/P4PPP/RNBQK2R b KQkq - +C44 Scotch Game: Cochrane-Shumov Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Nxf7 Nxf7 7. Bxf7+ Kxf7 8. Qh5+ g6 9. Qxc5 d5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5 g8h6 g5f7 h6f7 c4f7 e8f7 d1h5 g7g6 h5c5 d7d5 r1bq3r/ppp2k1p/2n3p1/2Qp4/3pP3/8/PPP2PPP/RNB1K2R w KQ - +C44 Scotch Game: Göring Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 r1bqkbnr/pppp1ppp/2n5/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C44 Scotch Game: Göring Gambit, Bardeleben Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Bc4 Nf6 6. Nxc3 Bb4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 f1c4 g8f6 b1c3 f8b4 r1bqk2r/pppp1ppp/2n2n2/8/1bB1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +C44 Scotch Game: Göring Gambit, Double Pawn Sacrifice 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Bc4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 f1c4 r1bqkbnr/pppp1ppp/2n5/8/2B1P3/2p2N2/PP3PPP/RNBQK2R b KQkq - +C44 Scotch Game: Göring Gambit, Main Line 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 b1c3 f8b4 r1bqk1nr/pppp1ppp/2n5/8/1b2P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +C44 Scotch Game: Hanneken Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. O-O cxb2 7. Bxb2 Nf6 8. Ng5 O-O 9. e5 Nxe5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 c2c3 d4c3 e1g1 c3b2 c1b2 g8f6 f3g5 e8g8 e4e5 c6e5 r1bq1rk1/pppp1ppp/5n2/4n1N1/1bB5/8/PB3PPP/RN1Q1RK1 w - - +C44 Scotch Game: Haxo Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 r1bqk1nr/pppp1ppp/2n5/2b5/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Lolli Variation 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 e2e4 e7e5 g1f3 b8c6 d2d4 c6d4 r1bqkbnr/pppp1ppp/8/4p3/3nP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C44 Scotch Game: Napoleon Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 4. Nxd4 exd4 5. Bc4 e2e4 e7e5 g1f3 b8c6 d2d4 c6d4 f3d4 e5d4 f1c4 r1bqkbnr/pppp1ppp/8/8/2BpP3/8/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Relfsson Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1b5 r1bqkbnr/pppp1ppp/2n5/1B6/3pP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Scotch Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 r1bqkbnr/pppp1ppp/2n5/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Scotch Gambit, Advance Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e4e5 r1bqkb1r/pppp1ppp/2n2n2/4P3/2Bp4/5N2/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Scotch Gambit, Cochrane-Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O d6 6. c3 Bg4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 e1g1 d7d6 c2c3 c8g4 r2qk1nr/ppp2ppp/2np4/2b5/2BpP1b1/2P2N2/PP3PPP/RNBQ1RK1 w kq - +C44 Scotch Game: Scotch Gambit, Dubois Réti Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 r1bqkb1r/pppp1ppp/2n2n2/8/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Scotch Gambit, Göring Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 d5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d7d5 r1bqkbnr/ppp2ppp/2n5/3p4/3pP3/2P2N2/PP3PPP/RNBQKB1R w KQkq - +C44 Scotch Game: Scotch Gambit, Kingside Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 Ng4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e4e5 f6g4 r1bqkb1r/pppp1ppp/2n5/4P3/2Bp2n1/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Scotch Gambit, London Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 r1bqk1nr/pppp1ppp/2n5/8/1bBpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Scotch Gambit, Sarratt Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5 r1bqk1nr/pppp1ppp/2n5/2b3N1/2BpP3/8/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Sea-cadet Mate 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 d6 6. Bc4 Bg4 7. O-O Ne5 8. Nxe5 Bxd1 9. Bxf7+ Ke7 10. Nd5# e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 b1c3 d7d6 f1c4 c8g4 e1g1 c6e5 f3e5 g4d1 c4f7 e8e7 c3d5 r2q1bnr/ppp1kBpp/3p4/3NN3/4P3/8/PP3PPP/R1Bb1RK1 b - - +C44 Scotch Game: Vitzthum Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Qh5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5 g8h6 d1h5 r1bqk2r/pppp1ppp/2n4n/2b3NQ/2BpP3/8/PPP2PPP/RNB1K2R b KQkq - +C44 Tayler Opening 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d4 e2e4 e7e5 g1f3 b8c6 f1e2 g8f6 d2d4 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/5N2/PPP1BPPP/RNBQK2R b KQkq - +C45 Scotch Game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 r1bqkbnr/pppp1ppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 r1b1k1nr/pppp1ppp/2n5/1N6/1b2P2q/8/PPPB1PPP/RN1QKB1R b KQkq - +C45 Scotch Game: Alekhine Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 e4e5 r1bqkb1r/pppp1ppp/2n2n2/4P3/3N4/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Berger Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Nd2 Qxe4+ 7. Be2 Qxg2 8. Bf3 Qh3 9. Nxc7+ Kd8 10. Nxa8 Nf6 11. a3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 b1d2 h4e4 f1e2 e4g2 e2f3 g2h3 b5c7 e8d8 c7a8 g8f6 a2a3 N1bk3r/pp1p1ppp/2n2n2/8/1b6/P4B1q/1PPN1P1P/R1BQK2R b KQ - +C45 Scotch Game: Blumenfeld Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. Nb5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 d4b5 r1b1k1nr/pppp1ppp/2n2q2/1Nb5/4P3/4B3/PPP2PPP/RN1QKB1R b KQkq - +C45 Scotch Game: Braune Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Be3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 c1e3 r1b1kbnr/pppp1ppp/2n5/8/3NP2q/4B3/PPP2PPP/RN1QKB1R b KQkq - +C45 Scotch Game: Classical Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 r1bqk1nr/pppp1ppp/2n5/2b5/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Classical Variation, Blackburne Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Qd2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d1d2 r1b1k2r/ppppnppp/2n2q2/2b5/3NP3/2P1B3/PP1Q1PPP/RN2KB1R b KQkq - +C45 Scotch Game: Classical Variation, Intermezzo Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 d4c6 d8f6 r1b1k1nr/pppp1ppp/2N2q2/2b5/4P3/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Classical Variation, Millennium Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Qg6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 f6g6 r1b1k1nr/pppp1ppp/2n3q1/2b5/3NP3/2P1B3/PP3PPP/RN1QKB1R w KQkq - +C45 Scotch Game: Fraser Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nf3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4f3 r1b1kbnr/pppp1ppp/2n5/8/4P2q/5N2/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Ghulam-Kassim Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. Bd3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 c6d4 d1d4 d7d6 f1d3 r1bqkbnr/ppp2ppp/3p4/8/3QP3/3B4/PPP2PPP/RNB1K2R b KQkq - +C45 Scotch Game: Gottschall Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Qd2 d5 8. Nb5 Bxe3 9. Qxe3 O-O 10. Nxc7 Rb8 11. Nxd5 Nxd5 12. exd5 Nb4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d1d2 d7d5 d4b5 c5e3 d2e3 e8g8 b5c7 a8b8 c7d5 e7d5 e4d5 c6b4 1rb2rk1/pp3ppp/5q2/3P4/1n6/2P1Q3/PP3PPP/RN2KB1R w KQ - +C45 Scotch Game: Horwitz Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 r1b1kbnr/pppp1ppp/2n5/1N6/4P2q/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Horwitz Attack, Blackburne Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Qxd2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 d1d2 r1bk2nr/pppp1ppp/2n5/1N6/4q3/8/PPPQBPPP/RN3RK1 b - - +C45 Scotch Game: Horwitz Attack, McDonnell Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Nxd2 Qf4 10. a4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 b1d2 e4f4 a2a4 r1bk2nr/pppp1ppp/2n5/1N6/P4q2/8/1PPNBPPP/R2Q1RK1 b - - +C45 Scotch Game: Horwitz Attack, Vienna Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Nxd2 Qf4 10. c4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 b1d2 e4f4 c2c4 r1bk2nr/pppp1ppp/2n5/1N6/2P2q2/8/PP1NBPPP/R2Q1RK1 b - - +C45 Scotch Game: Malaniuk Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4+ e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8b4 r1bqk1nr/pppp1ppp/2n5/8/1b1NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Meitner Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Nc2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d4c2 r1b1k2r/ppppnppp/2n2q2/2b5/4P3/2P1B3/PPN2PPP/RN1QKB1R b KQkq - +C45 Scotch Game: Mieses Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 d4c6 b7c6 e4e5 r1bqkb1r/p1pp1ppp/2p2n2/4P3/8/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Modern Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nc3 Bb4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 b1c3 f8b4 r1b1k1nr/pppp1ppp/2n5/8/1b1NP2q/2N5/PPP2PPP/R1BQKB1R w KQkq - +C45 Scotch Game: Paulsen Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 f1b5 r1b1k2r/ppppnppp/2n2q2/1Bb5/3NP3/2P1B3/PP3PPP/RN1QK2R b KQkq - +C45 Scotch Game: Paulsen Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nf5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4f5 r1b1kbnr/pppp1ppp/2n5/5N2/4P2q/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Paulsen, Gunsberg Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 Nd8 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 f1b5 c6d8 r1bnk2r/ppppnppp/5q2/1Bb5/3NP3/2P1B3/PP3PPP/RN1QK2R w KQkq - +C45 Scotch Game: Potter Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 d4b3 r1bqk1nr/pppp1ppp/2n5/2b5/4P3/1N6/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Romanishin Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 d4b3 c5b4 r1bqk1nr/pppp1ppp/2n5/8/1b2P3/1N6/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Rosenthal Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Nxd2 Qg6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 b1d2 e4g6 r1bk2nr/pppp1ppp/2n3q1/1N6/8/8/PPPNBPPP/R2Q1RK1 w - - +C45 Scotch Game: Schmidt Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 r1bqkb1r/pppp1ppp/2n2n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 r1b1kbnr/pppp1ppp/2n5/8/3NP2q/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nc3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 b1c3 r1b1kbnr/pppp1ppp/2n5/8/3NP2q/2N5/PPP2PPP/R1BQKB1R b KQkq - +C45 Scotch Game: Tartakower Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nd2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 d4c6 b7c6 b1d2 r1bqkb1r/p1pp1ppp/2p2n2/8/4P3/8/PPPN1PPP/R1BQKB1R b KQkq - +C46 Three Knights Opening 1. e4 e5 2. Nf3 Nc6 3. Nc3 e2e4 e7e5 g1f3 b8c6 b1c3 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C46 Three Knights Opening 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 e2e4 e7e5 g1f3 b8c6 b1c3 f8b4 r1bqk1nr/pppp1ppp/2n5/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +C46 Three Knights Opening: Schlechter Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Nd5 Nf6 e2e4 e7e5 g1f3 b8c6 b1c3 f8b4 c3d5 g8f6 r1bqk2r/pppp1ppp/2n2n2/3Np3/1b2P3/5N2/PPPP1PPP/R1BQKB1R w KQkq - +C46 Three Knights Opening: Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 e2e4 e7e5 g1f3 b8c6 b1c3 g7g6 r1bqkbnr/pppp1p1p/2n3p1/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +C46 Three Knights Opening: Steinitz-Rosenthal Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. d4 exd4 5. Nd5 e2e4 e7e5 g1f3 b8c6 b1c3 g7g6 d2d4 e5d4 c3d5 r1bqkbnr/pppp1p1p/2n3p1/3N4/3pP3/5N2/PPP2PPP/R1BQKB1R b KQkq - +C46 Three Knights Opening: Winawer Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 f5 e2e4 e7e5 g1f3 b8c6 b1c3 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +C47 Four Knights Game 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +C47 Four Knights Game: Gunsberg Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 a2a3 r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/P1N2N2/1PPP1PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Halloween Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f3e5 r1bqkb1r/pppp1ppp/2n2n2/4N3/4P3/2N5/PPPP1PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Halloween Gambit, Oldtimer Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Ng6 6. e5 Ng8 7. Bc4 Bb4 8. Qf3 f5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f3e5 c6e5 d2d4 e5g6 e4e5 f6g8 f1c4 f8b4 d1f3 f7f5 r1bqk1nr/pppp2pp/6n1/4Pp2/1bBP4/2N2Q2/PPP2PPP/R1B1K2R w KQkq f6 +C47 Four Knights Game: Halloween Gambit, Plasma Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Nc6 6. d5 Ne5 7. f4 Ng6 8. e5 Ng8 9. d6 cxd6 10. exd6 Qf6 11. Nb5 Rb8 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f3e5 c6e5 d2d4 e5c6 d4d5 c6e5 f2f4 e5g6 e4e5 f6g8 d5d6 c7d6 e5d6 d8f6 c3b5 a8b8 1rb1kbnr/pp1p1ppp/3P1qn1/1N6/5P2/8/PPP3PP/R1BQKB1R w KQk - +C47 Four Knights Game: Italian Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 b1c3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C47 Four Knights Game: Italian Variation, Noa Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Bxf7+ e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 b1c3 f6e4 c4f7 r1bqkb1r/pppp1Bpp/2n5/4p3/4n3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C47 Four Knights Game: Scotch Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Scotch Variation Accepted 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 r1bqkb1r/pppp1ppp/2n2n2/8/3pP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +C47 Four Knights Game: Scotch Variation, Belgrade Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 c3d5 r1bqkb1r/pppp1ppp/2n2n2/3N4/3pP3/5N2/PPP2PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Scotch Variation, Belgrade Gambit, Modern Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 Nxe4 6. Qe2 f5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 c3d5 f6e4 d1e2 f7f5 r1bqkb1r/pppp2pp/2n5/3N1p2/3pn3/5N2/PPP1QPPP/R1B1KB1R w KQkq - +C47 Four Knights Game: Scotch Variation, Krause Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 f8b4 f3e5 r1bqk2r/pppp1ppp/2n2n2/4N3/1b1PP3/2N5/PPP2PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Scotch Variation, Krause Gambit, Leonhardt Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 f8b4 f3e5 d8e7 r1b1k2r/ppppqppp/2n2n2/4N3/1b1PP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +C47 Four Knights Game: Scotch Variation, Oxford Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. d5 Nd4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 f8b4 d4d5 c6d4 r1bqk2r/pppp1ppp/5n2/3Pp3/1b1nP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +C47 Four Knights Game: Scotch Variation, Schmid Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Nxe4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 f3d4 f6e4 r1bqkb1r/pppp1ppp/2n5/8/3Nn3/2N5/PPP2PPP/R1BQKB1R w KQkq - +C48 Four Knights Game: Bardeleben Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Nc6 9. e5 Bb4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8c5 e1g1 e8g8 f3e5 c6e5 d2d4 c5d6 f2f4 e5c6 e4e5 d6b4 r1bq1rk1/pppp1ppp/2n2n2/1B2P3/1b1P1P2/2N5/PPP3PP/R1BQ1RK1 w - - +C48 Four Knights Game: Marshall Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxe5 Bc5 6. O-O O-O e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 f3e5 f8c5 e1g1 e8g8 r1bq1rk1/pppp1ppp/5n2/1Bb1N3/3nP3/2N5/PPPP1PPP/R1BQ1RK1 w - - +C48 Four Knights Game: Ranken Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 a7a6 b5c6 r1bqkb1r/1ppp1ppp/p1B2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C48 Four Knights Game: Rubinstein Countergambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 b5e2 r1bqkb1r/pppp1ppp/5n2/4p3/3nP3/2N2N2/PPPPBPPP/R1BQK2R b KQkq - +C48 Four Knights Game: Rubinstein Countergambit, Henneberger Variation 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. O-O e2e4 e7e5 g1f3 g8f6 b1c3 b8c6 f1b5 c6d4 e1g1 r1bqkb1r/pppp1ppp/5n2/1B2p3/3nP3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq - +C48 Four Knights Game: Rubinstein Countergambit, Maróczy Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2 Nxf3+ 6. Bxf3 Bc5 7. O-O O-O 8. d3 d6 9. Na4 Bb6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 b5e2 d4f3 e2f3 f8c5 e1g1 e8g8 d2d3 d7d6 c3a4 c5b6 r1bq1rk1/ppp2ppp/1b1p1n2/4p3/N3P3/3P1B2/PPP2PPP/R1BQ1RK1 w - - +C48 Four Knights Game: Spanish Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C48 Four Knights Game: Spanish Variation, Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8c5 r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C48 Four Knights Game: Spanish Variation, Classical Variation, Marshall Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. Nxe5 O-O e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 b5a4 f8c5 f3e5 e8g8 r1bq1rk1/pppp1ppp/5n2/2b1N3/B2nP3/2N5/PPPP1PPP/R1BQK2R w KQ - +C48 Four Knights Game: Spanish Variation, Rubinstein Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 r1bqkb1r/pppp1ppp/5n2/1B2p3/3nP3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C48 Four Knights Game: Spanish Variation, Rubinstein Variation 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. Nxe5 Qe7 6. f4 e2e4 e7e5 g1f3 g8f6 b1c3 b8c6 f1b5 c6d4 f3e5 d8e7 f2f4 r1b1kb1r/ppppqppp/5n2/1B2N3/3nPP2/2N5/PPPP2PP/R1BQK2R b KQkq - +C48 Four Knights Game: Spanish Variation, Rubinstein Variation Accepted 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxd4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 f3d4 r1bqkb1r/pppp1ppp/5n2/1B2p3/3NP3/2N5/PPPP1PPP/R1BQK2R b KQkq - +C48 Four Knights Game: Spielmann Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 dxc6 6. Nxe5 Nxe4 7. Nxe4 Qd4 8. O-O Qxe5 9. Re1 Be6 10. d4 Qd5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 a7a6 b5c6 d7c6 f3e5 f6e4 c3e4 d8d4 e1g1 d4e5 f1e1 c8e6 d2d4 e5d5 r3kb1r/1pp2ppp/p1p1b3/3q4/3PN3/8/PPP2PPP/R1BQR1K1 w kq - +C49 Four Knights Game: Alatortsev Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Qe7 7. Ne2 d5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d8e7 c3e2 d7d5 r1b2rk1/ppp1qppp/2n2n2/1B1pp3/1b2P3/3P1N2/PPP1NPPP/R1BQ1RK1 w - - +C49 Four Knights Game: Double Spanish 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 r1bqk2r/pppp1ppp/2n2n2/1B2p3/1b2P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C49 Four Knights Game: Double Spanish 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 r1bq1rk1/pppp1ppp/2n2n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 b - - +C49 Four Knights Game: Gunsberg Counterattack 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. Nd5 Nxd5 7. exd5 e4 e2e4 e7e5 g1f3 g8f6 b1c3 b8c6 f1b5 f8b4 e1g1 e8g8 c3d5 f6d5 e4d5 e5e4 r1bq1rk1/pppp1ppp/2n5/1B1P4/1b2p3/5N2/PPPP1PPP/R1BQ1RK1 w - - +C49 Four Knights Game: Janowski Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3 b2c3 d7d6 f1e1 r1bq1rk1/ppp2ppp/2np1n2/1B2p3/4P3/2PP1N2/P1P2PPP/R1BQR1K1 b - - +C49 Four Knights Game: Nimzowitsch Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Bxc6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 b5c6 r1bq1rk1/pppp1ppp/2B2n2/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQ1RK1 b - - +C49 Four Knights Game: Spanish Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3 r1bq1rk1/pppp1ppp/2n2n2/1B2p3/4P3/2bP1N2/PPP2PPP/R1BQ1RK1 w - - +C49 Four Knights Game: Spanish Variation, Symmetrical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 w - - +C49 Four Knights Game: Spanish Variation, Symmetrical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 b4c3 b2c3 d8e7 f1e1 c6d8 d3d4 c8g4 r2n1rk1/ppp1qppp/3p1n2/1B2p1B1/3PP1b1/2P2N2/P1P2PPP/R2QR1K1 w - - +C49 Four Knights Game: Spanish Variation, Symmetrical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c6e7 r1bq1rk1/ppp1nppp/3p1n2/1B2p1B1/1b2P3/2NP1N2/PPP2PPP/R2Q1RK1 w - - +C49 Four Knights Game: Spanish Variation, Symmetrical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Ne2 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c3e2 r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/3P1N2/PPP1NPPP/R1BQ1RK1 b - - +C49 Four Knights Game: Svenonius Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3 b2c3 d7d5 r1bq1rk1/ppp2ppp/2n2n2/1B1pp3/4P3/2PP1N2/P1P2PPP/R1BQ1RK1 w - - +C49 Four Knights Game: Symmetrical, Blake Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7 8. Nh4 c6 9. Bc4 d5 10. Bb3 Qd6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c6e7 f3h4 c7c6 b5c4 d6d5 c4b3 d8d6 r1b2rk1/pp2nppp/2pq1n2/3pp1B1/1b2P2N/1BNP4/PPP2PPP/R2Q1RK1 w - - +C49 Four Knights Game: Symmetrical, Metger Unpin 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 b4c3 b2c3 d8e7 r1b2rk1/ppp1qppp/2np1n2/1B2p1B1/4P3/2PP1N2/P1P2PPP/R2Q1RK1 w - - +C49 Four Knights Game: Symmetrical, Tarrasch Variation 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Be6 e2e4 e7e5 g1f3 g8f6 b1c3 b8c6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c8e6 r2q1rk1/ppp2ppp/2npbn2/1B2p1B1/1b2P3/2NP1N2/PPP2PPP/R2Q1RK1 w - - +C50 Blackburne Shilling Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 4. Nxe5 Qg5 5. Nxf7 Qxg2 6. Rf1 Qxe4+ 7. Be2 Nf3# e2e4 e7e5 g1f3 b8c6 f1c4 c6d4 f3e5 d8g5 e5f7 g5g2 h1f1 g2e4 c4e2 d4f3 r1b1kbnr/pppp1Npp/8/8/4q3/5n2/PPPPBP1P/RNBQKR2 w Qkq - +C50 Four Knights Game: Italian Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b1c3 g8f6 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C50 Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C50 Italian Game 1. e4 e5 2. Nf3 Nc6 3. Bc4 e2e4 e7e5 g1f3 b8c6 f1c4 r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C50 Italian Game: Anti-Fried Liver Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 e2e4 e7e5 g1f3 b8c6 f1c4 h7h6 r1bqkbnr/pppp1pp1/2n4p/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C50 Italian Game: Classical Variation, Albin Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. c3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 e1g1 g8f6 c2c3 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQ1RK1 b kq - +C50 Italian Game: Deutz Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 e1g1 g8f6 d2d4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2BPP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C50 Italian Game: Giuoco Pianissimo 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - +C50 Italian Game: Giuoco Pianissimo, Canal Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 d6 6. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6 b1c3 d7d6 c1g5 r1bqk2r/ppp2ppp/2np1n2/2b1p1B1/2B1P3/2NP1N2/PPP2PPP/R2QK2R b KQkq - +C50 Italian Game: Giuoco Pianissimo, Dubois Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 f5 5. Ng5 f4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 f7f5 f3g5 f5f4 r1bqk1nr/pppp2pp/2n5/2b1p1N1/2B1Pp2/3P4/PPP2PPP/RNBQK2R w KQkq - +C50 Italian Game: Giuoco Pianissimo, Italian Four Knights Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6 b1c3 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2NP1N2/PPP2PPP/R1BQK2R b KQkq - +C50 Italian Game: Giuoco Pianissimo, Lucchini Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 f5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 f7f5 r1bqk1nr/pppp2pp/2n5/2b1pp2/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQkq - +C50 Italian Game: Giuoco Pianissimo, Normal 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d3 f8c5 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQkq - +C50 Italian Game: Hungarian Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 e2e4 e7e5 g1f3 b8c6 f1c4 f8e7 r1bqk1nr/ppppbppp/2n5/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C50 Italian Game: Hungarian Defense, Tartakower Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 Nf6 6. e5 Ne4 e2e4 e7e5 g1f3 b8c6 f1c4 f8e7 d2d4 e5d4 c2c3 g8f6 e4e5 f6e4 r1bqk2r/ppppbppp/2n5/4P3/2Bpn3/2P2N2/PP3PPP/RNBQK2R w KQkq - +C50 Italian Game: Jerome Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+ e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c4f7 r1bqk1nr/pppp1Bpp/2n5/2b1p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C50 Italian Game: Rosentreter Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d4 r1bqk1nr/pppp1ppp/2n5/2b1p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C50 Italian Game: Rousseau Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 e2e4 e7e5 g1f3 b8c6 f1c4 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C50 Italian Game: Schilling-Kostic Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 e2e4 e7e5 g1f3 b8c6 f1c4 c6d4 r1bqkbnr/pppp1ppp/8/4p3/2BnP3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 r1bqk1nr/pppp1ppp/2n5/2b1p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R b KQkq - +C51 Italian Game: Evans Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 r2qk1nr/ppp2ppp/1bnp4/8/2BPP1b1/2N2N2/P4PPP/R1BQ1RK1 w kq - +C51 Italian Game: Evans Gambit Accepted 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 r1bqk1nr/pppp1ppp/2n5/4p3/1bB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 r1bqk1nr/pppp1ppp/1bn5/4p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 a2a4 r1bqk1nr/pppp1ppp/1bn5/4p3/PPB1P3/5N2/2PP1PPP/RNBQK2R b KQkq - +C51 Italian Game: Evans Gambit Declined, Cordel Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. Bb2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 c1b2 r1bqk1nr/pppp1ppp/1bn5/4p3/1PB1P3/5N2/PBPP1PPP/RN1QK2R b KQkq - +C51 Italian Game: Evans Gambit Declined, Hicken Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5 7. Qf3 Qxe5 8. Qxf7+ Kd8 9. Bb2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 d1f3 g5e5 f3f7 e8d8 c1b2 r1bk2nr/pppp1Qpp/1b6/nP2q3/2B1P3/8/PBPP1PPP/RN2K2R b KQ - +C51 Italian Game: Evans Gambit Declined, Hirschbach Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 r1b1k1nr/pppp1ppp/1b6/nP2N1q1/2B1P3/8/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit Declined, Lange Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Nh6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 g8h6 r1bqk2r/pppp1ppp/1b5n/nP2N3/2B1P3/8/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit Declined, Pavlov Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Nh6 7. d4 d6 8. Bxh6 dxe5 9. Bxg7 Rg8 10. Bxf7+ Kxf7 11. Bxe5 Qg5 12. Nd2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 g8h6 d2d4 d7d6 c1h6 d6e5 h6g7 h8g8 c4f7 e8f7 g7e5 d8g5 b1d2 r1b3r1/ppp2k1p/1b6/nP2B1q1/3PP3/8/P1PN1PPP/R2QK2R b KQ - +C51 Italian Game: Evans Gambit Declined, Showalter Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 a6 6. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 a2a4 a7a6 b1c3 r1bqk1nr/1ppp1ppp/pbn5/4p3/PPB1P3/2N2N2/2PP1PPP/R1BQK2R b KQkq - +C51 Italian Game: Evans Gambit Declined, Vasquez Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5 7. Bxf7+ Ke7 8. Qh5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 c4f7 e8e7 d1h5 r1b3nr/ppppkBpp/1b6/nP2N1qQ/4P3/8/P1PP1PPP/RNB1K2R b KQ - +C51 Italian Game: Evans Gambit, Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4e7 r1bqk1nr/ppppbppp/2n5/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Anderssen Variation, Cordel Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 Na5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4e7 d2d4 c6a5 r1bqk1nr/ppppbppp/8/n3p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Fontaine Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 b5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 b7b5 r1bqk1nr/p1pp1ppp/2n5/1pb1p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Fraser Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4 r2qk1nr/ppp2ppp/1bnp4/8/Q1BPP1b1/2N2N2/P4PPP/R1B2RK1 b kq - +C51 Italian Game: Evans Gambit, Fraser-Mortimer Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4 Bd7 11. Qb3 Na5 12. Bxf7+ Kf8 13. Qc2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4 g4d7 a4b3 c6a5 c4f7 e8f8 b3c2 r2q1knr/pppb1Bpp/1b1p4/n7/3PP3/2N2N2/P1Q2PPP/R1B2RK1 b - - +C51 Italian Game: Evans Gambit, Göring Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Na5 10. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c6a5 c1g5 r1bqk1nr/ppp2ppp/1b1p4/n5B1/2BPP3/2N2N2/P4PPP/R2Q1RK1 b kq - +C51 Italian Game: Evans Gambit, Harding Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. cxd4 Bb4+ 8. Bd2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 c3d4 c5b4 c1d2 r1bqk1nr/pppp1ppp/2n5/8/1bBPP3/5N2/P2B1PPP/RN1QK2R b KQkq - +C51 Italian Game: Evans Gambit, Hein Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 d5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 d7d5 r1bqk1nr/ppp2ppp/2n5/2bpp3/1PB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Mayet Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bf8 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4f8 r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, McDonnell Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, McDonnell Defense, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/P4PPP/RNBQ1RK1 w kq - +C51 Italian Game: Evans Gambit, Morphy Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d7d6 c3d4 a5b6 b1c3 r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/2N2N2/P4PPP/R1BQ1RK1 b kq - +C51 Italian Game: Evans Gambit, Mortimer-Evans Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4 Bd7 11. Qb3 Na5 12. Bxf7+ Kf8 13. Qc2 Kxf7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4 g4d7 a4b3 c6a5 c4f7 e8f8 b3c2 f8f7 r2q2nr/pppb1kpp/1b1p4/n7/3PP3/2N2N2/P1Q2PPP/R1B2RK1 w - - +C51 Italian Game: Evans Gambit, Paulsen Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. d5 Na5 10. Bb2 Ne7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 d4d5 c6a5 c1b2 g8e7 r1bqk2r/ppp1nppp/1b1p4/n2P4/2B1P3/5N2/PB3PPP/RN1Q1RK1 w kq - +C51 Italian Game: Evans Gambit, Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Na5 10. Bg5 f6 11. Be3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c6a5 c1g5 f7f6 g5e3 r1bqk1nr/ppp3pp/1b1p1p2/n7/2BPP3/2N1BN2/P4PPP/R2Q1RK1 b kq - +C51 Italian Game: Evans Gambit, Stone-Ware Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bd6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4d6 r1bqk1nr/pppp1ppp/2nb4/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Ulvestad Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. d5 Na5 10. Bb2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 d4d5 c6a5 c1b2 r1bqk1nr/ppp2ppp/1b1p4/n2P4/2B1P3/5N2/PB3PPP/RN1Q1RK1 b kq - +C52 Italian Game: Evans Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 r1bqk1nr/ppp2ppp/2np4/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Alapin-Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bg4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 c8g4 r2qk1nr/ppp2ppp/2np4/b3p3/2BPP1b1/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Anderssen Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O Nf6 7. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 g8f6 d2d4 e5d4 r1bqk2r/pppp1ppp/2n2n2/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Bronstein Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 r1bqk1nr/ppp2ppp/2np4/b3p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Compromised Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3 r1bqk1nr/pppp1ppp/2n5/b7/2B1P3/2p2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Compromised Defense, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 8. Qb3 Qf6 9. e5 Qg6 10. Nxc3 Nge7 11. Ba3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3 d1b3 d8f6 e4e5 f6g6 b1c3 g8e7 c1a3 r1b1k2r/ppppnppp/2n3q1/b3P3/2B5/BQN2N2/P4PPP/R4RK1 b kq - +C52 Italian Game: Evans Gambit, Compromised Defense, Potter Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 8. Qb3 Qf6 9. e5 Qg6 10. Nxc3 Nge7 11. Rd1 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3 d1b3 d8f6 e4e5 f6g6 b1c3 g8e7 f1d1 r1b1k2r/ppppnppp/2n3q1/b3P3/2B5/1QN2N2/P4PPP/R1BR2K1 b kq - +C52 Italian Game: Evans Gambit, Dufresne Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O d3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4d3 r1bqk1nr/pppp1ppp/2n5/b7/2B1P3/2Pp1N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Johner Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O b5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 b7b5 r1bqk1nr/p1pp1ppp/2n5/bp6/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Laroche Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 Nf6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 g8f6 r1bqk2r/pppp1ppp/2n2n2/b3p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Lasker Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 a5b6 r1bqk1nr/ppp2ppp/1bnp4/4p3/2BPP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Leonhardt Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 b5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 b7b5 r1bqk1nr/p1pp1ppp/2n5/bp2p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Levenfish Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 Qd7 8. dxe5 dxe5 9. O-O Bb6 10. Ba3 Na5 11. Nxe5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 d1b3 d8d7 d4e5 d6e5 e1g1 a5b6 c1a3 c6a5 f3e5 r1b1k1nr/pppq1ppp/1b6/n3N3/2B1P3/BQP5/P4PPP/RN3RK1 b kq - +C52 Italian Game: Evans Gambit, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 r1bqk1nr/pppp1ppp/2n5/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Mieses Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O Nge7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 g8e7 r1bqk2r/ppppnppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Pierce Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 r1bqk1nr/pppp1ppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Richardson Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O Nf6 7. d4 O-O 8. Nxe5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 g8f6 d2d4 e8g8 f3e5 r1bq1rk1/pppp1ppp/2n2n2/b3N3/2BPP3/2P5/P4PPP/RNBQ1RK1 b - - +C52 Italian Game: Evans Gambit, Sanders-Alapin Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bd7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 c8d7 r2qk1nr/pppb1ppp/2np4/b3p3/2BPP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Slow Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 r1bqk1nr/pppp1ppp/2n5/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQ1RK1 b kq - +C52 Italian Game: Evans Gambit, Sokolsky Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 c1g5 r1bqk1nr/ppp2ppp/2np4/b3p1B1/2BPP3/2P2N2/P4PPP/RN1QK2R b KQkq - +C52 Italian Game: Evans Gambit, Tartakower Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 d1b3 r1bqk1nr/ppp2ppp/2np4/b3p3/2BPP3/1QP2N2/P4PPP/RNB1K2R b KQkq - +C52 Italian Game: Evans Gambit, Waller Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O d6 8. Qb3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d7d6 d1b3 r1bqk1nr/ppp2ppp/2np4/b7/2BpP3/1QP2N2/P4PPP/RNB2RK1 b kq - +C53 Italian Game: Bird's Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. b4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 b2b4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/1PB1P3/2P2N2/P2P1PPP/RNBQK2R b KQkq - +C53 Italian Game: Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C53 Italian Game: Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Alexandre Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 f5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 f7f5 r1bqk1nr/pppp2pp/2n5/2b1pp2/2B1P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Center Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2BPP3/2P2N2/PP3PPP/RNBQK2R b KQkq - +C53 Italian Game: Classical Variation, Center Holding Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 r1b1k1nr/ppppqppp/1bn5/4p3/2BPP3/2P2N2/PP3PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Closed Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 r1b1k1nr/ppppqppp/2n5/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Giuoco Pianissimo 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d3 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2PP1N2/PP3PPP/RNBQK2R b KQkq - +C53 Italian Game: Classical Variation, Giuoco Pianissimo, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O O-O 7. Re1 a6 8. Bb3 Ba7 9. h3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d3 d7d6 e1g1 e8g8 f1e1 a7a6 c4b3 c5a7 h2h3 r1bq1rk1/bpp2ppp/p1np1n2/4p3/4P3/1BPP1N1P/PP3PP1/RNBQR1K1 b - - +C53 Italian Game: Classical Variation, Greco Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 Nf6 6. e5 d5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 c2c3 g8f6 e4e5 d7d5 r1bqk2r/ppp2ppp/2n2n2/2bpP3/2Bp4/2P2N2/PP3PPP/RNBQK2R w KQkq d6 +C53 Italian Game: Classical Variation, Greco Gambit, Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb4+ e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5 c4b5 f6e4 c3d4 c5b4 r1bqk2r/ppp2ppp/2n5/1B1pP3/1b1Pn3/5N2/PP3PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, La Bourdonnais Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 exd4 6. cxd4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d7d6 d2d4 e5d4 c3d4 c5b6 r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/PP3PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Tarrasch Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. O-O d6 7. a4 a6 8. h3 Nf6 9. Re1 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 e1g1 d7d6 a2a4 a7a6 h2h3 g8f6 f1e1 r1b1k2r/1pp1qppp/pbnp1n2/4p3/P1BPP3/2P2N1P/1P3PP1/RNBQR1K1 b kq - +C53 Italian Game: Giuoco Piano, Eisinger Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. d5 Nb8 7. d6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 d4d5 c6b8 d5d6 rnb1k1nr/ppppqppp/1b1P4/4p3/2B1P3/2P2N2/PP3PPP/RNBQK2R b KQkq - +C53 Italian Game: Giuoco Piano, Ghulam-Kassim Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. Bd5 Nxf2 8. Kxf2 dxc3+ 9. Kg3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 f6e4 c4d5 e4f2 e1f2 d4c3 f2g3 r1bqk2r/pppp1ppp/2n5/2bBP3/8/2p2NK1/PP4PP/RNBQ3R b kq - +C53 Italian Game: Giuoco Piano, Mestel Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 c1g5 r1b1k1nr/ppppqppp/1bn5/4p1B1/2BPP3/2P2N2/PP3PPP/RN1QK2R b KQkq - +C53 Italian Game: Scotch Gambit, Walbrodt-Baird Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. O-O e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e1g1 r1bqk2r/pppp1ppp/2n2n2/2b5/2BpP3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +C54 Italian Game: Classical Variation, Greco Gambit, Greco Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3 r1bqk2r/pppp1ppp/2n5/8/1bBP4/2n2N2/PP3PPP/R1BQ1RK1 w kq - +C54 Italian Game: Classical Variation, Greco Gambit, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 r1bqk2r/pppp1ppp/2n5/8/2BPn3/2b2N2/PP3PPP/R1BQ1RK1 w kq - +C54 Italian Game: Classical Variation, Greco Gambit, Moeller-Bayonet Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. g4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5 c3f6 f1e1 c6e7 e1e4 d7d6 g2g4 r1bqk2r/ppp1nppp/3p1b2/3P4/2B1R1P1/5N2/PP3P1P/R1BQ2K1 b kq - +C54 Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5 r1bqk2r/pppp1ppp/2n5/3P4/2B1n3/2b2N2/PP3PPP/R1BQ1RK1 b kq - +C54 Italian Game: Classical Variation, Greco Gambit, Traditional Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 r1bqk2r/pppp1ppp/2n2n2/2b5/2BPP3/5N2/PP3PPP/RNBQK2R b KQkq - +C54 Italian Game: Giuoco Piano, Aitken Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3 9. bxc3 Bxc3 10. Ba3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3 b2c3 b4c3 c1a3 r1bqk2r/pppp1ppp/2n5/8/2BP4/B1b2N2/P4PPP/R2Q1RK1 b kq - +C54 Italian Game: Giuoco Piano, Bernstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3 9. bxc3 Bxc3 10. Qb3 d5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3 b2c3 b4c3 d1b3 d7d5 r1bqk2r/ppp2ppp/2n5/3p4/2BP4/1Qb2N2/P4PPP/R1B2RK1 w kq - +C54 Italian Game: Giuoco Piano, Cracow Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Kf1 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 e1f1 r1bqk2r/pppp1ppp/2n2n2/8/1bBPP3/5N2/PP3PPP/RNBQ1K1R b kq - +C54 Italian Game: Giuoco Piano, Greco's Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 r1bqk2r/pppp1ppp/2n2n2/8/1bBPP3/2N2N2/PP3PPP/R1BQK2R b KQkq - +C54 Italian Game: Giuoco Piano, Krause Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ d5 11. Ne5+ Kf6 12. f3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 c1d2 f6e4 d2b4 c6b4 c4f7 e8f7 d1b3 d7d5 f3e5 f7f6 f2f3 r1bq3r/ppp3pp/5k2/3pN3/1n1Pn3/1Q3P2/PP4PP/RN2K2R b KQ - +C54 Italian Game: Giuoco Piano, Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. bxc3 d5 10. Ba3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 b2c3 d7d5 c1a3 r1bqk2r/ppp2ppp/2n5/3p4/2BPn3/B1P2N2/P4PPP/R2Q1RK1 b kq - +C54 Italian Game: Giuoco Piano, Therkatz-Herzog Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. Bg5 Bxg5 13. Nxg5 O-O 14. Nxh7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5 c3f6 f1e1 c6e7 e1e4 d7d6 c1g5 f6g5 f3g5 e8g8 g5h7 r1bq1rk1/ppp1nppN/3p4/3P4/2B1R3/8/PP3PPP/R2Q2K1 b - - +C55 Italian Game: Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 d6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 d7d6 r1bqk2r/ppp2ppp/3p1n2/4p1B1/2BnP3/8/PPP2PPP/RN1Q1RK1 w kq - +C55 Italian Game: Giuoco Piano, Holzhausen Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 d6 8. f4 Qe7 9. fxe5 dxe5 10. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 d7d6 f2f4 d8e7 f4e5 d6e5 b1c3 r1b1k2r/ppp1qppp/5n2/4p1B1/2BnP3/2N5/PPP3PP/R2Q1RK1 b kq - +C55 Italian Game: Giuoco Piano, Rosentreter Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 h6 8. Bh4 g5 9. f4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 h7h6 g5h4 g7g5 f2f4 r1bqk2r/pppp1p2/5n1p/4p1p1/2BnPP1B/8/PPP3PP/RN1Q1RK1 b kq - +C55 Italian Game: Scotch Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 r1bqkb1r/pppp1ppp/2n2n2/8/2BpP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C55 Italian Game: Scotch Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 d6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 d7d6 r1bqkb1r/ppp2ppp/2np1n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C55 Italian Game: Scotch Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 Bd6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 f8d6 r1bqk2r/pppp1ppp/2nb1n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C55 Italian Game: Scotch Gambit, Janowski Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O d6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 d7d6 r1bqkb1r/ppp2ppp/2np1n2/8/2BpP3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C55 Italian Game: Scotch Gambit, Max Lange Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Bc5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8c5 r1bqk2r/pppp1ppp/2n2n2/2b5/2BpP3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C55 Italian Game: Scotch Gambit, Max Lange Attack Accepted 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d4 exd4 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. fxg7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 e1g1 g8f6 d2d4 e5d4 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f6g7 r2qk2r/ppp2pPp/2n1b3/2b5/2pp4/5N2/PPP2PPP/RNBQR1K1 b kq - +C55 Italian Game: Scotch Gambit, Max Lange Attack, Long Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. Nce4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 c3e4 r3k2r/ppp2ppp/2n1bP2/2b2qN1/2ppN3/8/PPP2PPP/R1BQR1K1 b kq - +C55 Italian Game: Scotch Gambit, Max Lange Attack, Spielmann Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Bc5 6. e5 Ng4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8c5 e4e5 f6g4 r1bqk2r/pppp1ppp/2n5/2b1P3/2Bp2n1/5N2/PPP2PPP/RNBQ1RK1 w kq - +C55 Italian Game: Scotch Gambit, de Riviere Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Be7 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8e7 r1bqk2r/ppppbppp/2n2n2/8/2BpP3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C55 Italian Game: Two Knights Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C55 Italian Game: Two Knights Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 Nxe4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 f6e4 r1bqkb1r/pppp1ppp/2n5/4p3/2BPn3/5N2/PPP2PPP/RNBQK2R w KQkq - +C55 Italian Game: Two Knights Defense, Keidansky Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bc5 8. Nxc6 Bxf2+ 9. Kf1 Qh4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e4e5 d7d5 c4b5 f6e4 f3d4 f8c5 d4c6 c5f2 e1f1 d8h4 r1b1k2r/ppp2ppp/2N5/1B1pP3/4n2q/8/PPP2bPP/RNBQ1K1R w kq - +C55 Italian Game: Two Knights Defense, Max Lange Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Bc5 6. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8c5 e4e5 r1bqk2r/pppp1ppp/2n2n2/2b1P3/2Bp4/5N2/PPP2PPP/RNBQ1RK1 b kq - +C55 Italian Game: Two Knights Defense, Max Lange Attack, Berger Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. g4 Qg6 12. Nce4 Bb6 13. f4 O-O-O e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 g2g4 f5g6 c3e4 c5b6 f2f4 e8c8 2kr3r/ppp2ppp/1bn1bPq1/6N1/2ppNPP1/8/PPP4P/R1BQR1K1 w - - +C55 Italian Game: Two Knights Defense, Max Lange Attack, Krause Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 Ng4 7. c3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 f6g4 c2c3 r1bqk2r/pppp1ppp/2n5/2b1P3/2Bp2n1/2P2N2/PP3PPP/RNBQ1RK1 b kq - +C55 Italian Game: Two Knights Defense, Max Lange Attack, Loman Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O Nf6 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 g6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 e1g1 g8f6 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 g7g6 r2qk2r/ppp2p1p/2n1bPp1/2b3N1/2pp4/8/PPP2PPP/RNBQR1K1 w kq - +C55 Italian Game: Two Knights Defense, Max Lange Attack, Rubinstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. Nce4 Bf8 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 c3e4 c5f8 r3kb1r/ppp2ppp/2n1bP2/5qN1/2ppN3/8/PPP2PPP/R1BQR1K1 w kq - +C55 Italian Game: Two Knights Defense, Modern Bishop's Opening 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - +C55 Italian Game: Two Knights Defense, Open Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 r1bqkb1r/pppp1ppp/2n2n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C55 Italian Game: Two Knights Defense, Perreux Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. Ng5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 f3g5 r1bqkb1r/pppp1ppp/2n2n2/6N1/2BpP3/8/PPP2PPP/RNBQK2R b KQkq - +C56 Italian Game: Scotch Gambit, Anderssen Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 f1e1 d7d5 c4d5 d8d5 b1c3 r1b1kb1r/ppp2ppp/2n5/3q4/3pn3/2N2N2/PPP2PPP/R1BQR1K1 b kq - +C56 Italian Game: Scotch Gambit, Anderssen Attack, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Qd5 11. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 f1e1 d7d5 c4d5 d8d5 b1c3 d5a5 c3e4 c8e6 c1d2 a5d5 d2g5 r3kb1r/ppp2ppp/2n1b3/3q2B1/3pN3/5N2/PPP2PPP/R2QR1K1 b kq - +C56 Italian Game: Scotch Gambit, Canal Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Nxe4 6. Re1 d5 7. Nc3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f6e4 f1e1 d7d5 b1c3 r1bqkb1r/ppp2ppp/2n5/3p4/2Bpn3/2N2N2/PPP2PPP/R1BQR1K1 b kq - +C56 Italian Game: Scotch Gambit, Double Gambit Accepted 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 r1bqkb1r/pppp1ppp/2n5/8/2Bpn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C56 Italian Game: Scotch Gambit, Nakhmanson Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 b1c3 r1bqkb1r/pppp1ppp/2n5/8/2Bpn3/2N2N2/PPP2PPP/R1BQ1RK1 b kq - +C56 Italian Game: Two Knights Defense, Yurdansky Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bg5 h6 11. Bh4 g5 12. Nf6+ Ke7 13. b4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f6e4 f1e1 d7d5 c4d5 d8d5 b1c3 d5a5 c3e4 c8e6 c1g5 h7h6 g5h4 g7g5 e4f6 e8e7 b2b4 r4b1r/ppp1kp2/2n1bN1p/q5p1/1P1p3B/5N2/P1P2PPP/R2QR1K1 b - - +C57 Italian Game: Two Knights Defense, Fegatello Attack, Leonhardt Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Nb4 9. Qe4 c6 10. a3 Na6 11. d4 Nc7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7 e8f7 d1f3 f7e6 b1c3 c6b4 f3e4 c7c6 a2a3 b4a6 d2d4 a6c7 r1bq1b1r/ppn3pp/2p1k3/3np3/2BPQ3/P1N5/1PP2PPP/R1B1K2R w KQ - +C57 Italian Game: Two Knights Defense, Fried Liver Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7 r1bqkb1r/ppp2Npp/2n5/3np3/2B5/8/PPPP1PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Fritz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6d4 r1bqkb1r/ppp2ppp/5n2/3Pp1N1/2Bn4/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Fritz, Gruber Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. Ne4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6d4 c2c3 b7b5 c4f1 f6d5 g5e4 r1bqkb1r/p1p2ppp/8/1p1np3/3nN3/2P5/PP1P1PPP/RNBQKB1R b KQkq - +C57 Italian Game: Two Knights Defense, Kloss Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nb4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6b4 r1bqkb1r/ppp2ppp/5n2/3Pp1N1/1nB5/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Knight Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 r1bqkb1r/pppp1ppp/2n2n2/4p1N1/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Knight Attack, Normal Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 r1bqkb1r/ppp2ppp/2n2n2/3pp1N1/2B1P3/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Lolli Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 d2d4 r1bqkb1r/ppp2ppp/2n5/3np1N1/2BP4/8/PPP2PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Pincus Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4 Bb4+ e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 d2d4 f8b4 r1bqk2r/ppp2ppp/2n5/3np1N1/1bBP4/8/PPP2PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Ponziani-Steinitz Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Nxe4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f6e4 r1bqkb1r/pppp1ppp/2n5/4p1N1/2B1n3/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Traxler Counterattack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 r1bqk2r/pppp1ppp/2n2n2/2b1p1N1/2B1P3/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Traxler Counterattack, Bishop Sacrifice Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Bxf7+ e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 c4f7 r1bqk2r/pppp1Bpp/2n2n2/2b1p1N1/4P3/8/PPPP1PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Traxler Counterattack, King March Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 Bxf2+ 6. Kxf2 Nxe4+ 7. Ke3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 g5f7 c5f2 e1f2 f6e4 f2e3 r1bqk2r/pppp1Npp/2n5/4p3/2B1n3/4K3/PPPP2PP/RNBQ3R b kq - +C57 Italian Game: Two Knights Defense, Traxler Counterattack, Knight Sacrifice Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 g5f7 r1bqk2r/pppp1Npp/2n2n2/2b1p3/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Traxler Variation, Trencianske-Teplice Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Bxf7+ Ke7 6. d4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 c4f7 e8e7 d2d4 r1bq3r/ppppkBpp/2n2n2/2b1p1N1/3PP3/8/PPP2PPP/RNBQK2R b KQ - +C57 Italian Game: Two Knights Defense, Ulvestad Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 b7b5 r1bqkb1r/p1p2ppp/2n2n2/1p1Pp1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Ulvestad Variation, Kurkin Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 6. Bf1 h6 7. Nxf7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 b7b5 c4f1 h7h6 g5f7 r1bqkb1r/p1p2Np1/2n2n1p/1p1Pp3/8/8/PPPP1PPP/RNBQKB1R b KQkq - +C58 Italian Game: Two Knights Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 r1bqkb1r/p4ppp/2p2n2/n3p1N1/8/8/PPPPBPPP/RNBQK2R b KQkq - +C58 Italian Game: Two Knights Defense, Blackburne Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 cxb5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 c6b5 r1bqkb1r/p4ppp/5n2/np2p1N1/8/5Q2/PPPP1PPP/RNB1K2R w KQkq - +C58 Italian Game: Two Knights Defense, Colman Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Rb8 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 a8b8 1rbqkb1r/p4ppp/2p2n2/nB2p1N1/8/5Q2/PPPP1PPP/RNB1K2R w KQk - +C58 Italian Game: Two Knights Defense, Maróczy Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. Qe2 Nxc4 9. dxc4 Be7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 h7h6 g5f3 e5e4 d1e2 a5c4 d3c4 f8e7 r1bqk2r/ppp1bpp1/5n1p/3P4/2P1p3/5N2/PPP1QPPP/RNB1K2R w KQkq - +C58 Italian Game: Two Knights Defense, Paoli Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Qc7 9. Bd3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 d8c7 b5d3 r1b1kb1r/p1q2ppp/2p2n2/n3p1N1/8/3B1Q2/PPPP1PPP/RNB1K2R b KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 r1bqkb1r/ppp2ppp/5n2/n2Pp1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 r1bqkb1r/ppp2ppp/5n2/nB1Pp1N1/8/8/PPPP1PPP/RNBQK2R b KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense, Bogoljubov Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 r1bqkb1r/p4ppp/2p2n2/nB2p1N1/8/5Q2/PPPP1PPP/RNB1K2R b KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense, Kieseritzky Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 r1bqkb1r/ppp2ppp/5n2/n2Pp1N1/2B5/3P4/PPP2PPP/RNBQK2R b KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense, Yankovich Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. Qe2 Nxc4 9. dxc4 Bc5 10. Nfd2 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 h7h6 g5f3 e5e4 d1e2 a5c4 d3c4 f8c5 f3d2 r1bqk2r/ppp2pp1/5n1p/2bP4/2P1p3/8/PPPNQPPP/RNB1K2R b KQkq - +C59 Italian Game: Two Knights Defense, Knorre Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Bd6 11. d4 Qc7 12. Bd2 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5f3 e5e4 f3e5 f8d6 d2d4 d8c7 c1d2 r1b1k2r/p1q2pp1/2pb1n1p/n3N3/3Pp3/8/PPPBBPPP/RN1QK2R b KQkq - +C59 Italian Game: Two Knights Defense, Polerio Defense, Göring Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Qc7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5f3 e5e4 f3e5 d8c7 r1b1kb1r/p1q2pp1/2p2n1p/n3N3/4p3/8/PPPPBPPP/RNBQK2R w KQkq - +C59 Italian Game: Two Knights Defense, Polerio Defense, Suhle Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 r1bqkb1r/p4pp1/2p2n1p/n3p1N1/8/8/PPPPBPPP/RNBQK2R w KQkq - +C59 Italian Game: Two Knights Defense, Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nh3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5h3 r1bqkb1r/p4pp1/2p2n1p/n3p3/8/7N/PPPPBPPP/RNBQK2R b KQkq - +C60 Ruy Lopez 1. e4 e5 2. Nf3 Nc6 3. Bb5 e2e4 e7e5 g1f3 b8c6 f1b5 r1bqkbnr/pppp1ppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C60 Ruy Lopez: Alapin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bb4 e2e4 e7e5 g1f3 b8c6 f1b5 f8b4 r1bqk1nr/pppp1ppp/2n5/1B2p3/1b2P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Alapin Defense, Alapin Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bb4 4. c3 Ba5 5. Bxc6 dxc6 e2e4 e7e5 g1f3 b8c6 f1b5 f8b4 c2c3 b4a5 b5c6 d7c6 r1bqk1nr/ppp2ppp/2p5/b3p3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Brentano Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 g5 e2e4 e7e5 g1f3 b8c6 f1b5 g7g5 r1bqkbnr/pppp1p1p/2n5/1B2p1p1/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Bulgarian Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a5 r1bqkbnr/1ppp1ppp/2n5/pB2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Cozio Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 e2e4 e7e5 g1f3 b8c6 f1b5 g8e7 r1bqkb1r/ppppnppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Cozio Defense, Paulsen Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. Nc3 g6 e2e4 e7e5 g1f3 b8c6 f1b5 g8e7 b1c3 g7g6 r1bqkb1r/ppppnp1p/2n3p1/1B2p3/4P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C60 Ruy Lopez: Cozio Defense, Tartakower Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. d4 exd4 5. Nxd4 Bg7 6. Be3 Nge7 7. Nc3 O-O 8. Qd2 d5 e2e4 e7e5 g1f3 b8c6 f1b5 g7g6 d2d4 e5d4 f3d4 f8g7 c1e3 g8e7 b1c3 e8g8 d1d2 d7d5 r1bq1rk1/ppp1npbp/2n3p1/1B1p4/3NP3/2N1B3/PPPQ1PPP/R3K2R w KQ - +C60 Ruy Lopez: Fianchetto Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 e2e4 e7e5 g1f3 b8c6 f1b5 g7g6 r1bqkbnr/pppp1p1p/2n3p1/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Fianchetto Defense, Kevitz Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. c3 f5 e2e4 e7e5 g1f3 b8c6 f1b5 g7g6 c2c3 f7f5 r1bqkbnr/pppp3p/2n3p1/1B2pp2/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Lucena Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 f8e7 r1bqk1nr/ppppbppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Nürnberg Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f6 e2e4 e7e5 g1f3 b8c6 f1b5 f7f6 r1bqkbnr/pppp2pp/2n2p2/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Pollock Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Na5 e2e4 e7e5 g1f3 b8c6 f1b5 c6a5 r1bqkbnr/pppp1ppp/8/nB2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Retreat Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nb8 e2e4 e7e5 g1f3 b8c6 f1b5 c6b8 rnbqkbnr/pppp1ppp/8/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Rotary-Albany Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 b6 e2e4 e7e5 g1f3 b8c6 f1b5 b7b6 r1bqkbnr/p1pp1ppp/1pn5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Spanish Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 d5 e2e4 e7e5 g1f3 b8c6 f1b5 d7d5 r1bqkbnr/ppp2ppp/2n5/1B1pp3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Spanish Countergambit, Harding Countergambit, Fricke Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 d5 4. Nxe5 Qg5 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 d7d5 f3e5 d8g5 e1g1 r1b1kbnr/ppp2ppp/2n5/1B1pN1q1/4P3/8/PPPP1PPP/RNBQ1RK1 b kq - +C60 Ruy Lopez: Spanish Countergambit, Harding Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 d5 4. Nxe5 Qg5 5. Nxc6 e2e4 e7e5 g1f3 b8c6 f1b5 d7d5 f3e5 d8g5 e5c6 r1b1kbnr/ppp2ppp/2N5/1B1p2q1/4P3/8/PPPP1PPP/RNBQK2R b KQkq - +C60 Ruy Lopez: Vinogradov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Qe7 e2e4 e7e5 g1f3 b8c6 f1b5 d8e7 r1b1kbnr/ppppqppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C61 Ruy Lopez: Bird Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 e2e4 e7e5 g1f3 b8c6 f1b5 c6d4 r1bqkbnr/pppp1ppp/8/1B2p3/3nP3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C61 Ruy Lopez: Bird Variation, Paulsen Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. O-O Ne7 e2e4 e7e5 g1f3 b8c6 f1b5 c6d4 f3d4 e5d4 e1g1 g8e7 r1bqkb1r/ppppnppp/8/1B6/3pP3/8/PPPP1PPP/RNBQ1RK1 w kq - +C62 Ruy Lopez: Old Steinitz Defense, Semi-Duras Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. c4 e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 c8d7 c2c4 r2qkbnr/pppb1ppp/2np4/1B2p3/2PPP3/5N2/PP3PPP/RNBQK2R b KQkq - +C62 Ruy Lopez: Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 r1bqkbnr/ppp2ppp/2np4/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C62 Ruy Lopez: Steinitz Defense, Center Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 e5d4 e1g1 r1bqkbnr/ppp2ppp/2np4/1B6/3pP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C62 Ruy Lopez: Steinitz Defense, Nimzowitsch Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nf6 6. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 c8d7 b1c3 g8f6 b5c6 r2qkb1r/pppb1ppp/2Bp1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 r1bqkbnr/pppp2pp/2n5/1B2pp2/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C63 Ruy Lopez: Schliemann Defense, Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qg5 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 f5e4 c3e4 d7d5 f3e5 d5e4 e5c6 d8g5 r1b1kbnr/ppp3pp/2N5/1B4q1/4p3/8/PPPP1PPP/R1BQK2R w KQkq - +C63 Ruy Lopez: Schliemann Defense, Dyckhoff Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 r1bqkbnr/pppp2pp/2n5/1B2pp2/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense, Exchange Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b5c6 r1bqkbnr/pppp2pp/2B5/4pp2/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense, Jaenisch Gambit Accepted 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. exf5 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 e4f5 r1bqkbnr/pppp2pp/2n5/1B2pP2/8/5N2/PPPP1PPP/RNBQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense, Kostic Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 f5e4 c3e4 f8e7 r1bqk1nr/ppppb1pp/2n5/1B2p3/4N3/5N2/PPPP1PPP/R1BQK2R w KQkq - +C63 Ruy Lopez: Schliemann Defense, Möhring Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qd5 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 f5e4 c3e4 d7d5 f3e5 d5e4 e5c6 d8d5 r1b1kbnr/ppp3pp/2N5/1B1q4/4p3/8/PPPP1PPP/R1BQK2R w KQkq - +C63 Ruy Lopez: Schliemann Defense, Schönemann Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d4 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 d2d4 r1bqkbnr/pppp2pp/2n5/1B2pp2/3PP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense, Tartakower Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 Nf6 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 f5e4 c3e4 g8f6 r1bqkb1r/pppp2pp/2n2n2/1B2p3/4N3/5N2/PPPP1PPP/R1BQK2R w KQkq - +C64 Ruy Lopez: Classical Defense, Benelux Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3 O-O 6. d4 Bb6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5 c2c3 e8g8 d2d4 c5b6 r1bq1rk1/pppp1ppp/1bn2n2/1B2p3/3PP3/2P2N2/PP3PPP/RNBQ1RK1 w - - +C64 Ruy Lopez: Classical Defense, Boden Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Qe7 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 d8e7 r1b1k1nr/ppppqppp/2n5/1Bb1p3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Defense, Zaitsev Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. b4 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 e1g1 c6d4 b2b4 r1bqk1nr/pppp1ppp/8/1Bb1p3/1P1nP3/5N2/P1PP1PPP/RNBQ1RK1 b kq - +C64 Ruy Lopez: Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 r1bqk1nr/pppp1ppp/2n5/1Bb1p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Variation, Central Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 r1bqk1nr/pppp1ppp/2n5/1Bb1p3/4P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C64 Ruy Lopez: Classical Variation, Charousek Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Bb6 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 c5b6 r1bqk1nr/pppp1ppp/1bn5/1B2p3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Variation, Cordel Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 f5 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 f7f5 r1bqk1nr/pppp2pp/2n5/1Bb1pp2/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Variation, Konikowski Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 d5 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 d7d5 r1bqk1nr/ppp2ppp/2n5/1Bbpp3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Variation, Modern Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3 O-O 6. d4 Bb6 7. Bg5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5 c2c3 e8g8 d2d4 c5b6 c1g5 r1bq1rk1/pppp1ppp/1bn2n2/1B2p1B1/3PP3/2P2N2/PP3PPP/RN1Q1RK1 b - - +C64 Ruy Lopez: Classical Variation, Spanish Wing Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. b4 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 b2b4 r1bqk1nr/pppp1ppp/2n5/1Bb1p3/1P2P3/5N2/P1PP1PPP/RNBQK2R b KQkq - +C65 Ruy Lopez: Berlin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C65 Ruy Lopez: Berlin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C65 Ruy Lopez: Berlin Defense, Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. Bxc6+ e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 d7d6 b5c6 r1bqkb1r/ppp2ppp/2Bp1n2/4p3/4P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - +C65 Ruy Lopez: Berlin Defense, Beverwijk Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5 r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C65 Ruy Lopez: Berlin Defense, Duras Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 d7d6 c2c4 r1bqkb1r/ppp2ppp/2np1n2/1B2p3/2P1P3/3P1N2/PP3PPP/RNBQK2R b KQkq - +C65 Ruy Lopez: Berlin Defense, Fishing Pole Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Ng4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6g4 r1bqkb1r/pppp1ppp/2n5/1B2p3/4P1n1/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C65 Ruy Lopez: Berlin Defense, Kaufmann Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Be3 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 f8c5 c1e3 r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/3PBN2/PPP2PPP/RN1QK2R b KQkq - +C65 Ruy Lopez: Berlin Defense, Mortimer Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 5. Nxe5 c6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 c6e7 f3e5 c7c6 r1bqkb1r/pp1pnppp/2p2n2/1B2N3/4P3/3P4/PPP2PPP/RNBQK2R w KQkq - +C65 Ruy Lopez: Berlin Defense, Mortimer Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 c6e7 r1bqkb1r/ppppnppp/5n2/1B2p3/4P3/3P1N2/PPP2PPP/RNBQK2R w KQkq - +C65 Ruy Lopez: Berlin Defense, Nyholm Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d4 exd4 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d4 e5d4 e1g1 r1bqkb1r/pppp1ppp/2n2n2/1B6/3pP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C65 Ruy Lopez: Classical Variation, Zukertort Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5 c2c3 r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/2P2N2/PP1P1PPP/RNBQ1RK1 b kq - +C65 Ruy Lopez: Halloween Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nxe5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 f3e5 r1bqkb1r/pppp1ppp/2n2n2/1B2N3/4P3/8/PPPP1PPP/RNBQK2R b KQkq - +C66 Ruy Lopez: Berlin Defense, Closed Bernstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bg5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 c1g5 r2qk2r/pppbbppp/2np1n2/1B2p1B1/3PP3/2N2N2/PPP2PPP/R2Q1RK1 b kq - +C66 Ruy Lopez: Berlin Defense, Closed Showalter Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 b5c6 r2qk2r/pppbbppp/2Bp1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQ1RK1 b kq - +C66 Ruy Lopez: Berlin Defense, Closed Wolf Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 exd4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 e5d4 r2qkb1r/pppb1ppp/2np1n2/1B6/3pP3/2N2N2/PPP2PPP/R1BQ1RK1 w kq - +C66 Ruy Lopez: Berlin Defense, Hedgehog Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 r2qk2r/pppbbppp/2np1n2/1B2p3/3PP3/2N2N2/PPP2PPP/R1BQ1RK1 w kq - +C66 Ruy Lopez: Berlin Defense, Improved Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 r1bqkb1r/ppp2ppp/2np1n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C66 Ruy Lopez: Berlin Defense, Tarrasch Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nf6 6. O-O Be7 7. Re1 O-O e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 c8d7 b1c3 g8f6 e1g1 f8e7 f1e1 e8g8 r2q1rk1/pppbbppp/2np1n2/1B2p3/3PP3/2N2N2/PPP2PPP/R1BQR1K1 w - - +C66 Ruy Lopez: Closed Berlin Defense, Chigorin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Nd7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 f6d7 r1bqkb1r/pppn1ppp/2np4/1B2p3/3PP3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Berlin Wall 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 Bd7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5c6 d7c6 d4e5 d6f5 d1d8 e8d8 b1c3 c8d7 r2k1b1r/pppb1ppp/2p5/4Pn2/8/2N2N2/PPP2PPP/R1B2RK1 w - - +C67 Ruy Lopez: Berlin Defense, Cordel Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nf5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6f5 r1bqk2r/p1ppbppp/2p5/4Pn2/8/5N2/PPP1QPPP/RNB2RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Minckwitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. dxe5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d4e5 r1bqk2r/ppppbppp/2n5/1B2P3/4n3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C67 Ruy Lopez: Berlin Defense, Pillsbury Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. b3 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 b2b3 r1bqk2r/pnppbppp/2p5/4P3/8/1P3N2/P1P1QPPP/RNB2RK1 b kq - +C67 Ruy Lopez: Berlin Defense, Rio Gambit Accepted 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 r1bqkb1r/pppp1ppp/2n5/1B2p3/4n3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Rio de Janeiro Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 r1bqk2r/ppppbppp/2n5/1B2p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Rio de Janeiro Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nc3 O-O 10. Re1 Nc5 11. Nd4 Ne6 12. Be3 Nxd4 13. Bxd4 c5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 b1c3 e8g8 f1e1 b7c5 f3d4 c5e6 c1e3 e6d4 e3d4 c6c5 r1bq1rk1/p1ppbppp/8/2p1P3/3B4/2N5/PPP1QPPP/R3R1K1 w - - +C67 Ruy Lopez: Berlin Defense, Rosenthal Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 a6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 a7a6 r1bqkb1r/1ppp1ppp/p1n5/1B2p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Trifunovic Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 d5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 d7d5 r1bqk2r/ppp1bppp/2n5/1B1pp3/3Pn3/5N2/PPP1QPPP/RNB2RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Winawer Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nd4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 f3d4 r1bqk2r/pnppbppp/2p5/4P3/3N4/8/PPP1QPPP/RNB2RK1 b kq - +C67 Ruy Lopez: Berlin Defense, Zukertort Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. c4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 c2c4 r1bqk2r/pnppbppp/2p5/4P3/2P5/5N2/PP2QPPP/RNB2RK1 b kq - +C67 Ruy Lopez: Berlin Defense, l'Hermet Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 r1bqkb1r/pppp1ppp/2nn4/1B2p3/3P4/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, l'Hermet Variation, Berlin Wall Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5c6 d7c6 d4e5 d6f5 d1d8 e8d8 r1bk1b1r/ppp2ppp/2p5/4Pn2/8/5N2/PPP2PPP/RNB2RK1 w - - +C67 Ruy Lopez: Berlin Defense, l'Hermet Variation, Westerinen Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Ne4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5c6 d7c6 d4e5 d6e4 r1bqkb1r/ppp2ppp/2p5/4P3/4n3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Open Berlin Defense, Showalter Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Ba4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5a4 r1bqkb1r/pppp1ppp/2nn4/4p3/B2P4/5N2/PPP2PPP/RNBQ1RK1 b kq - +C67 Ruy Lopez: Open Berlin Defense, l'Hermet Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. dxe5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 d4e5 r1bqkb1r/pppp1ppp/2nn4/1B2P3/8/5N2/PPP2PPP/RNBQ1RK1 b kq - +C68 Ruy Lopez: Exchange Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 r1bqkbnr/1ppp1ppp/p1B5/4p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C68 Ruy Lopez: Exchange Variation, Alekhine Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 d2d4 e5d4 d1d4 d8d4 f3d4 f8d6 r1b1k1nr/1pp2ppp/p1pb4/8/3NP3/8/PPP2PPP/RNB1K2R w KQkq - +C68 Ruy Lopez: Exchange Variation, Keres Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 b1c3 r1bqkbnr/1pp2ppp/p1p5/4p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C68 Ruy Lopez: Exchange Variation, Lutikov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 b7c6 r1bqkbnr/2pp1ppp/p1p5/4p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C68 Ruy Lopez: Exchange Variation, Romanovsky Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 b1c3 f7f6 d2d3 r1bqkbnr/1pp3pp/p1p2p2/4p3/4P3/2NP1N2/PPP2PPP/R1BQK2R b KQkq - +C68 Ruy Lopez: Exchange, Alekhine Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 d2d4 e5d4 d1d4 d8d4 f3d4 c8d7 r3kbnr/1ppb1ppp/p1p5/8/3NP3/8/PPP2PPP/RNB1K2R w KQkq - +C69 Ruy Lopez: Exchange Variation, Alapin Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 h5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 c8g4 h2h3 h7h5 r2qkbnr/1pp2pp1/p1p5/4p2p/4P1b1/5N1P/PPPP1PP1/RNBQ1RK1 w kq - +C69 Ruy Lopez: Exchange Variation, Bronstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Qd6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 d8d6 r1b1kbnr/1pp2ppp/p1pq4/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C69 Ruy Lopez: Exchange Variation, Gligoric Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 f7f6 r1bqkbnr/1pp3pp/p1p2p2/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C69 Ruy Lopez: Exchange Variation, King's Bishop Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 f8d6 r1bqk1nr/1pp2ppp/p1pb4/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C69 Ruy Lopez: Exchange Variation, Normal Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 r1bqkbnr/1pp2ppp/p1p5/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C70 Ruy Lopez: Bird's Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nd4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 c6d4 r1bqkbnr/1ppp1ppp/p7/4p3/B2nP3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 r1bqkbnr/1ppp1ppp/p1n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Alapin's Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f8b4 r1bqk1nr/1ppp1ppp/p1n5/4p3/Bb2P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Caro Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 r1bqkbnr/2pp1ppp/p1n5/1p2p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Classical Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f8c5 r1bqk1nr/1ppp1ppp/p1n5/2b1p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Cozio Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8e7 r1bqkb1r/1pppnppp/p1n5/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g7g6 r1bqkbnr/1ppp1p1p/p1n3p1/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Graz Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 f8c5 r1bqk1nr/2pp1ppp/p1n5/1pb1p3/4P3/1B3N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Norwegian Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Na5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 c6a5 r1bqkbnr/2pp1ppp/p7/np2p3/4P3/1B3N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Norwegian Variation, Nightingale Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Na5 6. Bxf7+ e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 c6a5 b3f7 r1bqkbnr/2pp1Bpp/p7/np2p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C70 Ruy Lopez: Morphy Defense, Schliemann Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f7f5 r1bqkbnr/1ppp2pp/p1n5/4pp2/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Schliemann Defense Deferred, Jaenisch Gambit Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5 5. exf5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f7f5 e4f5 r1bqkbnr/1ppp2pp/p1n5/4pP2/B7/5N2/PPPP1PPP/RNBQK2R b KQkq - +C71 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C71 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 b1c3 r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C71 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c4 r1bqkbnr/1pp2ppp/p1np4/4p3/B1P1P3/5N2/PP1P1PPP/RNBQK2R b KQkq - +C71 Ruy Lopez: Noah's Ark Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 d6 6. d4 Nxd4 7. Nxd4 exd4 8. Qxd4 c5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 d7d6 d2d4 c6d4 f3d4 e5d4 d1d4 c7c5 r1bqkbnr/5ppp/p2p4/1pp5/3QP3/1B6/PPP2PPP/RNB1K2R w KQkq - +C72 Ruy Lopez: Closed, Kecskemet Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. c3 Nf6 7. d4 Be7 8. Nbd2 O-O 9. Re1 Be8 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 e1g1 c8d7 c2c3 g8f6 d2d4 f8e7 b1d2 e8g8 f1e1 d7e8 r2qbrk1/1pp1bppp/p1np1n2/4p3/B2PP3/2P2N2/PP1N1PPP/R1BQR1K1 w - - +C72 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 e1g1 r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C73 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 a4c6 b7c6 d2d4 r1bqkbnr/2p2ppp/p1pp4/4p3/3PP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C73 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 a4c6 b7c6 d2d4 f7f6 r1bqkbnr/2p3pp/p1pp1p2/4p3/3PP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C74 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C74 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 f7f5 e4f5 c8f5 e1g1 r2qkbnr/1pp3pp/p1np4/4pb2/B7/2P2N2/PP1P1PPP/RNBQ1RK1 b kq - +C74 Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 f7f5 r1bqkbnr/1pp3pp/p1np4/4pp2/B3P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C75 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 c8d7 r2qkbnr/1ppb1ppp/p1np4/4p3/B3P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C75 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 c8d7 d2d4 g8e7 r2qkb1r/1ppbnppp/p1np4/4p3/B2PP3/2P2N2/PP3PPP/RNBQK2R w KQkq - +C76 Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Fianchetto Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. c3 a6 5. Ba4 d6 6. d4 Bd7 e2e4 e7e5 g1f3 b8c6 f1b5 g7g6 c2c3 a7a6 b5a4 d7d6 d2d4 c8d7 r2qkbnr/1ppb1p1p/p1np2p1/4p3/B2PP3/2P2N2/PP3PPP/RNBQK2R w KQkq - +C77 Ruy Lopez: Morphy Defense, Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d2d3 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Bayreuth Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 a4c6 r1bqkb1r/1ppp1ppp/p1B2n2/4p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Duras Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d2d3 d7d6 c2c4 r1bqkb1r/1pp2ppp/p1np1n2/4p3/B1P1P3/3P1N2/PP3PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Jaffe Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 c2c3 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Mackenzie Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d2d4 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B2PP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Tarrasch Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 b1c3 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Wormald Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d1e2 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/5N2/PPPPQPPP/RNB1K2R b KQkq - +C77 Ruy Lopez: Wormald Attack, Grünfeld Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. d4 d6 8. c3 Bg4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d1e2 b7b5 a4b3 f8e7 d2d4 d7d6 c2c3 c8g4 r2qk2r/2p1bppp/p1np1n2/1p2p3/3PP1b1/1BP2N2/PP2QPPP/RNB1K2R w KQkq - +C78 Ruy Lopez: Brix Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O g6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 g7g6 r1bqkb1r/1ppp1p1p/p1n2np1/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Central Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d5 r1bqkb1r/1pp2ppp/p1n2n2/3pp3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Morphy Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C78 Ruy Lopez: Morphy Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 d7d6 r1bqkb1r/2p2ppp/p1np1n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Morphy Defense, Arkhangelsk Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bb7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 c8b7 r2qkb1r/1bpp1ppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8c5 r1bqk2r/1ppp1ppp/p1n2n2/2b1p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Morphy Defense, Wing Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. a4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 f8e7 a2a4 r1bqk2r/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQ1RK1 b kq - +C78 Ruy Lopez: Rabinovich Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 7. Ng5 d5 8. exd5 Nd4 9. Re1 Bc5 10. Rxe5+ Kf8 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 d7d6 f3g5 d6d5 e4d5 c6d4 f1e1 f8c5 e1e5 e8f8 r1bq1k1r/2p2ppp/p4n2/1pbPR1N1/3n4/1B6/PPPP1PPP/RNBQ2K1 w - - +C79 Ruy Lopez: Morphy Defense, Steinitz Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 r1bqkb1r/1pp2ppp/p1np1n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C79 Ruy Lopez: Morphy Defense, Steinitz Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Nxe4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 f6e4 r1bqkb1r/2p2ppp/p1pp4/4p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C79 Ruy Lopez: Steinitz Defense Deferred, Boleslavsky Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Nxe4 8. Re1 f5 9. dxe5 d5 10. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 f6e4 f1e1 f7f5 d4e5 d6d5 b1c3 r1bqkb1r/2p3pp/p1p5/3pPp2/4n3/2N2N2/PPP2PPP/R1BQR1K1 b kq - +C79 Ruy Lopez: Steinitz Defense Deferred, Lipnitsky Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Bg4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 c8g4 r2qkb1r/2p2ppp/p1pp1n2/4p3/3PP1b1/5N2/PPP2PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Morphy Defense, Tartakower Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d1e2 r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/5N2/PPPPQPPP/RNB2RK1 b kq - +C80 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 r1bqkb1r/1ppp1ppp/p1n5/4p3/B2Pn3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 r1bqkb1r/2pp1ppp/p1n5/1p2p3/3Pn3/1B3N2/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 r1bqkb1r/2p2ppp/p1n5/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open, Berger Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. a4 Nxd4 9. Nxd4 exd4 10. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 a2a4 c6d4 f3d4 e5d4 b1c3 r1bqkb1r/2p2ppp/p7/1p1p4/P2pn3/1BN5/1PP2PPP/R1BQ1RK1 b kq - +C80 Ruy Lopez: Open, Bernstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 b1d2 r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPPN1PPP/R1BQ1RK1 b kq - +C80 Ruy Lopez: Open, Bernstein Variation, Luther Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Bc5 10. Qe1 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 b1d2 f8c5 d1e1 r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1B3N2/PPPN1PPP/R1B1QRK1 b kq - +C80 Ruy Lopez: Open, Friess Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Nxe5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 f3e5 r1bqkb1r/2pp1ppp/p1n5/1p2N3/B2Pn3/8/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open, Harksen Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. c4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 c2c4 r1bqkb1r/2p2ppp/p1n5/1p1pp3/2PPn3/1B3N2/PP3PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open, Karpov Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 10. c3 d4 11. Ng5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 b1d2 e4c5 c2c3 d5d4 f3g5 r2qkb1r/2p2ppp/p1n1b3/1pn1P1N1/3p4/1BP5/PP1N1PPP/R1BQ1RK1 b kq - +C80 Ruy Lopez: Open, Knorre Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 b1c3 r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq - +C80 Ruy Lopez: Open, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Open, Richter Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. d5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 d4d5 r1bqkb1r/2pp1ppp/p1n5/1p1Pp3/B3n3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open, Riga Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 e5d4 r1bqkb1r/1ppp1ppp/p1n5/8/B2pn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Open, Schlechter Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. a4 Nxd4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 a2a4 c6d4 r1bqkb1r/2p2ppp/p7/1p1pp3/P2nn3/1B3N2/1PP2PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Open, Skipworth Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Re1 d5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 f1e1 d7d5 r1bqkb1r/1pp2ppp/p1n5/3pp3/B3n3/5N2/PPPP1PPP/RNBQR1K1 w kq - +C80 Ruy Lopez: Open, Zukertort Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Ne7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c6e7 r1bqkb1r/2p1nppp/p7/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 w kq - +C81 Ruy Lopez: Open, Howell Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2 r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPP1QPPP/RNB2RK1 b kq - +C81 Ruy Lopez: Open, Howell Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. c4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2 f8e7 c2c4 r2qk2r/2p1bppp/p1n1b3/1p1pP3/2P1n3/1B3N2/PP2QPPP/RNB2RK1 b kq - +C81 Ruy Lopez: Open, Howell Attack, Ekstrom Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 O-O 11. c4 bxc4 12. Bxc4 Qd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2 f8e7 f1d1 e8g8 c2c4 b5c4 b3c4 d8d7 r4rk1/2pqbppp/p1n1b3/3pP3/2B1n3/5N2/PP2QPPP/RNBR2K1 w - - +C82 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 b kq - +C82 Ruy Lopez: Open, Berlin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Nc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 e4c5 r2qkb1r/2p2ppp/p1n1b3/1pnpP3/8/1BP2N2/PP3PPP/RNBQ1RK1 w kq - +C82 Ruy Lopez: Open, Dilworth Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O 11. Bc2 Nxf2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 b1d2 e8g8 b3c2 e4f2 r2q1rk1/2p2ppp/p1n1b3/1pbpP3/8/2P2N2/PPBN1nPP/R1BQ1RK1 w - - +C82 Ruy Lopez: Open, Italian Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 w kq - +C82 Ruy Lopez: Open, Motzko Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qd3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 d1d3 r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BPQ1N2/PP3PPP/RNB2RK1 b kq - +C82 Ruy Lopez: Open, Motzko Attack, Nenarokov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qd3 Ne7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 d1d3 c6e7 r2qk2r/2p1nppp/p3b3/1pbpP3/4n3/1BPQ1N2/PP3PPP/RNB2RK1 w kq - +C82 Ruy Lopez: Open, St. Petersburg Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 b1d2 r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BP2N2/PP1N1PPP/R1BQ1RK1 b kq - +C83 Ruy Lopez: Open, Breslau Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Re1 O-O 11. Nd4 Nxe5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 f1e1 e8g8 f3d4 c6e5 r2q1rk1/2p1bppp/p3b3/1p1pn3/3Nn3/1BP5/PP3PPP/RNBQR1K1 w - - +C83 Ruy Lopez: Open, Classical Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 r2qk2r/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 w kq - +C83 Ruy Lopez: Open, Classical Defense, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 Be7 7. Re1 b5 8. Bb3 d5 9. dxe5 Be6 10. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 f8e7 f1e1 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 r2qk2r/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQR1K1 b kq - +C83 Ruy Lopez: Open, Malkin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 O-O 11. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 b1d2 e8g8 d1e2 r2q1rk1/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP1NQPPP/R1B2RK1 b - - +C83 Ruy Lopez: Open, Tarrasch Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Re1 O-O 11. Nd4 Qd7 12. Nxe6 fxe6 13. Rxe4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 f1e1 e8g8 f3d4 d8d7 d4e6 f7e6 e1e4 r4rk1/2pqb1pp/p1n1p3/1p1pP3/4R3/1BP5/PP3PPP/RNBQ2K1 b - - +C84 Ruy Lopez: Closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C84 Ruy Lopez: Closed, Basque Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 exd4 7. e5 Ne4 8. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d4 e5d4 e4e5 f6e4 c2c3 r1bqk2r/1pppbppp/p1n5/4P3/B2pn3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +C84 Ruy Lopez: Closed, Center Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d4 r1bqk2r/1pppbppp/p1n2n2/4p3/B2PP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C84 Ruy Lopez: Closed, Center Attack, Basque Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 exd4 7. e5 Ne4 8. c3 dxc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d4 e5d4 e4e5 f6e4 c2c3 d4c3 r1bqk2r/1pppbppp/p1n5/4P3/B3n3/2p2N2/PP3PPP/RNBQ1RK1 w kq - +C84 Ruy Lopez: Closed, Martinez Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d3 r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/3P1N2/PPP2PPP/RNBQ1RK1 b kq - +C84 Ruy Lopez: Closed, Morphy Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 b1c3 r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq - +C85 Ruy Lopez: Closed, Delayed Exchange 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 a4c6 r1bqk2r/1pppbppp/p1B2n2/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C86 Ruy Lopez: Closed, Worrall Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2 r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/5N2/PPPPQPPP/RNB2RK1 b kq - +C86 Ruy Lopez: Closed, Worrall Attack, Castling Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2 b7b5 a4b3 e8g8 r1bq1rk1/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPPQPPP/RNB2RK1 w - - +C86 Ruy Lopez: Closed, Worrall Attack, Delayed Castling Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2 b7b5 a4b3 d7d6 r1bqk2r/2p1bppp/p1np1n2/1p2p3/4P3/1B3N2/PPPPQPPP/RNB2RK1 w kq - +C87 Ruy Lopez: Closed, Averbakh Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 d7d6 r1bqk2r/1pp1bppp/p1np1n2/4p3/B3P3/5N2/PPPP1PPP/RNBQR1K1 w kq - +C88 Ruy Lopez: Closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 r1bqk2r/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 b kq - +C88 Ruy Lopez: Closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 r1bq1rk1/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 w - - +C88 Ruy Lopez: Closed, Alekhine Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. Nbd2 O-O 12. Nf1 Bg4 13. Ne3 Bxf3 14. Qxf3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 e8g8 d2f1 c8g4 f1e3 g4f3 d1f3 r4rk1/2q1bppp/p2p1n2/npp1p3/3PP3/2P1NQ2/PPB2PPP/R1B1R1K1 b - - +C88 Ruy Lopez: Closed, Anti-Marshall 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 a2a4 r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - - +C88 Ruy Lopez: Closed, Balla Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. a4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 c6a5 b3c2 c7c5 d2d4 d8c7 a2a4 r1b1k2r/2q1bppp/p2p1n2/npp1p3/P2PP3/2P2N2/1PB2PPP/RNBQR1K1 b kq - +C88 Ruy Lopez: Closed, Leonhardt Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. h3 Nc6 12. d5 Nb8 13. Nbd2 g5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 c6a5 b3c2 c7c5 d2d4 d8c7 h2h3 a5c6 d4d5 c6b8 b1d2 g7g5 rnb1k2r/2q1bp1p/p2p1n2/1ppPp1p1/4P3/2P2N1P/PPBN1PP1/R1BQR1K1 w kq - +C88 Ruy Lopez: Closed, Rosen Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 d2d4 r1bqk2r/2p1bppp/p1np1n2/1p2p3/3PP3/1B3N2/PPP2PPP/RNBQR1K1 b kq - +C88 Ruy Lopez: Closed, Trajkovic Counterattack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 Bb7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 c8b7 r2qk2r/1bppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 w kq - +C88 Ruy Lopez: Noah's Ark Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. d4 Nxd4 9. Nxd4 exd4 10. Qxd4 c5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 d2d4 c6d4 f3d4 e5d4 d1d4 c7c5 r1bqk2r/4bppp/p2p1n2/1pp5/3QP3/1B6/PPP2PPP/RNB1R1K1 w kq - +C89 Ruy Lopez: Marshall Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 r1bq1rk1/2p1bppp/p1n2n2/1p1pp3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 w - - +C89 Ruy Lopez: Marshall Attack, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4 r1bq1rk1/4bppp/p1p5/1p1nR3/3P4/1BP5/PP3PPP/RNBQ2K1 b - - +C89 Ruy Lopez: Marshall Attack, Main Line, Spassky Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Be3 Bg4 16. Qd3 Rae8 17. Nd2 Re6 18. a4 Qh5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4 e7d6 e5e1 d8h4 g2g3 h4h3 c1e3 c8g4 d1d3 a8e8 b1d2 e8e6 a2a4 h3h5 5rk1/5ppp/p1pbr3/1p1n3q/P2P2b1/1BPQB1P1/1P1N1P1P/R3R1K1 w - - +C89 Ruy Lopez: Marshall Attack, Modern Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4 e7d6 e5e1 d8h4 g2g3 h4h3 r1b2rk1/5ppp/p1pb4/1p1n4/3P4/1BP3Pq/PP3P1P/RNBQR1K1 w - - +C89 Ruy Lopez: Marshall Attack, Modern Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 r1bq1rk1/4bppp/p1p5/1p1nR3/8/1BP5/PP1P1PPP/RNBQ2K1 w - - +C89 Ruy Lopez: Marshall Attack, Original Marshall Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 Nf6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 d5f6 r1bq1rk1/2p1bppp/p4n2/1p2R3/8/1BP5/PP1P1PPP/RNBQ2K1 w - - +C89 Ruy Lopez: Marshall Attack, Re3 Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. Bxd5 cxd5 13. d4 Bd6 14. Re3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 b3d5 c6d5 d2d4 e7d6 e5e3 r1bq1rk1/5ppp/p2b4/1p1p4/3P4/2P1R3/PP3PPP/RNBQ2K1 b - - +C89 Ruy Lopez: Marshall Attack, Steiner Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 e4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 e5e4 r1bq1rk1/2p1bppp/p1n2n2/1p1P4/4p3/1BP2N2/PP1P1PPP/RNBQR1K1 w - - +C90 Ruy Lopez: Closed, Closed Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 w - - +C90 Ruy Lopez: Closed, Lutikov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. Bc2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 b3c2 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/2P2N2/PPBP1PPP/RNBQR1K1 b - - +C90 Ruy Lopez: Closed, Pilnik Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 d2d3 d7d6 c2c3 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BPP1N2/PP3PPP/RNBQR1K1 b - - +C90 Ruy Lopez: Closed, Suetin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. a3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 a2a3 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/PBP2N2/1P1P1PPP/RNBQR1K1 b - - +C91 Ruy Lopez: Closed, Bogoljubov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 d2d4 c8g4 r2q1rk1/2p1bppp/p1np1n2/1p2p3/3PP1b1/1BP2N2/PP3PPP/RNBQR1K1 w - - +C91 Ruy Lopez: Closed, Yates Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 d2d4 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/3PP3/1BP2N2/PP3PPP/RNBQR1K1 b - - +C91 Ruy Lopez: Closed, Yates Variation, Short Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 10. a4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 d2d4 c8g4 a2a4 r2q1rk1/2p1bppp/p1np1n2/1p2p3/P2PP1b1/1BP2N2/1P3PPP/RNBQR1K1 b - - +C92 Ruy Lopez: Closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 b - - +C92 Ruy Lopez: Closed, Flohr System 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c8b7 r2q1rk1/1bp1bppp/p1np1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C92 Ruy Lopez: Closed, Keres Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 f6d7 r1bq1rk1/2pnbppp/p1np4/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C92 Ruy Lopez: Closed, Keres Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 a5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 a6a5 r1bq1rk1/2p1bppp/2np1n2/pp2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C92 Ruy Lopez: Closed, Kholmov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Be6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c8e6 r2q1rk1/2p1bppp/p1npbn2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C92 Ruy Lopez: Closed, Smyslov-Breyer-Zaitsev Hybrid 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. a3 h6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c8b7 d2d4 f8e8 b1d2 e7f8 a2a3 h7h6 r2qrbk1/1bp2pp1/p1np1n1p/1p2p3/3PP3/PBP2N1P/1P1N1PP1/R1BQR1K1 w - - +C92 Ruy Lopez: Closed, Zaitsev System 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Re8 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 f8e8 r1bqr1k1/2p1bppp/p1np1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C93 Ruy Lopez: Closed, Smyslov Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 h7h6 r1bq1rk1/2p1bpp1/p1np1n1p/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C94 Ruy Lopez: Morphy Defense, Breyer Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 rnbq1rk1/2p1bppp/p2p1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C94 Ruy Lopez: Morphy Defense, Breyer Defense, Quiet Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d3 rnbq1rk1/2p1bppp/p2p1n2/1p2p3/4P3/1BPP1N1P/PP3PP1/RNBQR1K1 b - - +C95 Ruy Lopez: Closed, Breyer 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d4 rnbq1rk1/2p1bppp/p2p1n2/1p2p3/3PP3/1BP2N1P/PP3PP1/RNBQR1K1 b - - +C95 Ruy Lopez: Closed, Breyer Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 c5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d4 b8d7 b1d2 c8b7 b3c2 c7c5 r2q1rk1/1b1nbppp/p2p1n2/1pp1p3/3PP3/2P2N1P/PPBN1PP1/R1BQR1K1 w - - +C95 Ruy Lopez: Closed, Breyer Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. Nh4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d4 b8d7 f3h4 r1bq1rk1/2pnbppp/p2p1n2/1p2p3/3PP2N/1BP4P/PP3PP1/RNBQR1K1 b - - +C95 Ruy Lopez: Morphy Defense, Breyer Defense, Zaitsev Hybrid 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d4 b8d7 r1bq1rk1/2pnbppp/p2p1n2/1p2p3/3PP3/1BP2N1P/PP3PP1/RNBQR1K1 w - - +C96 Ruy Lopez: Closed, Borisenko Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 a5c6 r1bq1rk1/4bppp/p1np1n2/1pp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - - +C96 Ruy Lopez: Closed, Closed Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 r1bq1rk1/2p1bppp/p2p1n2/np2p3/4P3/2P2N1P/PPBP1PP1/RNBQR1K1 b - - +C96 Ruy Lopez: Closed, Closed Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 r1bq1rk1/4bppp/p2p1n2/npp1p3/4P3/2P2N1P/PPBP1PP1/RNBQR1K1 w - - +C96 Ruy Lopez: Closed, Keres Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 f6d7 r1bq1rk1/3nbppp/p2p4/npp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - - +C96 Ruy Lopez: Closed, Rossolimo Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c6 11. d4 Qc7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c6 d2d4 d8c7 r1b2rk1/2q1bppp/p1pp1n2/np2p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - - +C97 Ruy Lopez: Closed, Chigorin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 r1b2rk1/2q1bppp/p2p1n2/npp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - - +C97 Ruy Lopez: Closed, Chigorin, Yugoslav System 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Bd7 13. Nf1 Rfe8 14. Ne3 g6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 c8d7 d2f1 f8e8 f1e3 g7g6 r3r1k1/2qbbp1p/p2p1np1/npp1p3/3PP3/2P1NN1P/PPB2PP1/R1BQR1K1 w - - +C98 Ruy Lopez: Closed, Chigorin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 a5c6 r1b2rk1/2q1bppp/p1np1n2/1pp1p3/3PP3/2P2N1P/PPBN1PP1/R1BQR1K1 w - - +C98 Ruy Lopez: Closed, Chigorin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. dxc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 a5c6 d4c5 r1b2rk1/2q1bppp/p1np1n2/1pP1p3/4P3/2P2N1P/PPBN1PP1/R1BQR1K1 b - - +C99 Ruy Lopez: Morphy Defense, Chigorin Defense, Panov System 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 c5d4 c3d4 r1b2rk1/2q1bppp/p2p1n2/np2p3/3PP3/5N1P/PPBN1PP1/R1BQR1K1 b - - +D00 Amazon Attack 1. d4 d5 2. Qd3 d2d4 d7d5 d1d3 rnbqkbnr/ppp1pppp/8/3p4/3P4/3Q4/PPP1PPPP/RNB1KBNR b KQkq - +D00 Blackmar Gambit 1. d4 d5 2. e4 d2d4 d7d5 e2e4 rnbqkbnr/ppp1pppp/8/3p4/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +D00 Blackmar-Diemer Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 d2d4 d7d5 e2e4 d5e4 b1c3 rnbqkbnr/ppp1pppp/8/8/3Pp3/2N5/PPP2PPP/R1BQKBNR b KQkq - +D00 Blackmar-Diemer Gambit 1. d4 Nf6 2. Nc3 d5 3. e4 d2d4 g8f6 b1c3 d7d5 e2e4 rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +D00 Blackmar-Diemer Gambit Declined: Brombacher Countergambit 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 c5 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 c7c5 rnbqkb1r/pp2pppp/5n2/2p5/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit Declined: Elbert Countergambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e7e5 rnbqkb1r/ppp2ppp/5n2/4p3/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit Declined: Grosshans Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Bd7 d2d4 d7d5 e2e4 d5e4 b1c3 c8d7 rn1qkbnr/pppbpppp/8/8/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit Declined: Lamb Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Nc6 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 b8c6 r1bqkb1r/ppp1pppp/2n2n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit Declined: Langeheinecke Defense 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 e3 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 e4e3 rnbqkb1r/ppp1pppp/5n2/8/3P4/2N1pP2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit: Bogoljubov Defense, Mad Dog Attack 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. h4 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 g7g6 f1c4 f8g7 h2h4 rnbqk2r/ppp1ppbp/5np1/8/2BP3P/2N2N2/PPP3P1/R1BQK2R b KQkq - +D00 Blackmar-Diemer Gambit: Bogoljubov Variation 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 exf3 5. Nxf3 g6 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 e4f3 g1f3 g7g6 rnbqkb1r/ppp1pp1p/5np1/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Bogoljubov Variation, Kloss Attack 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Kh1 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 g7g6 f1c4 f8g7 e1g1 e8g8 g1h1 rnbq1rk1/ppp1ppbp/5np1/8/2BP4/2N2N2/PPP3PP/R1BQ1R1K b - - +D00 Blackmar-Diemer Gambit: Bogoljubov Variation, Nimzowitsch Attack 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. Ne5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 g7g6 f1c4 f8g7 f3e5 rnbqk2r/ppp1ppbp/5np1/4N3/2BP4/2N5/PPP3PP/R1BQK2R b KQkq - +D00 Blackmar-Diemer Gambit: Bogoljubov Variation, Studier Attack 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Qe1 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 e4f3 g1f3 g7g6 f1c4 f8g7 e1g1 e8g8 d1e1 rnbq1rk1/ppp1ppbp/5np1/8/2BP4/2N2N2/PPP3PP/R1B1QRK1 b - - +D00 Blackmar-Diemer Gambit: Diemer-Rosenberg Attack 1. d4 d5 2. e4 dxe4 3. Be3 d2d4 d7d5 e2e4 d5e4 c1e3 rnbqkbnr/ppp1pppp/8/8/3Pp3/4B3/PPP2PPP/RN1QKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Euwe Defense 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 exf3 5. Nxf3 e6 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 e4f3 g1f3 e7e6 rnbqkb1r/ppp2ppp/4pn2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Euwe Defense, Zilbermints Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 e7e6 c1g5 f8e7 f1d3 b8c6 e1g1 c6d4 g1h1 r1bqk2r/ppp1bppp/4pn2/6B1/3n4/2NB1N2/PPP3PP/R2Q1R1K b kq - +D00 Blackmar-Diemer Gambit: Fritz Attack 1. d4 d5 2. e4 dxe4 3. Bc4 d2d4 d7d5 e2e4 d5e4 f1c4 rnbqkbnr/ppp1pppp/8/8/2BPp3/8/PPP2PPP/RNBQK1NR b KQkq - +D00 Blackmar-Diemer Gambit: Gedult Gambit 1. d4 d5 2. e4 dxe4 3. f3 d2d4 d7d5 e2e4 d5e4 f2f3 rnbqkbnr/ppp1pppp/8/8/3Pp3/5P2/PPP3PP/RNBQKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Kaulich Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 c7c5 rnbqkb1r/pp2pppp/5n2/2p5/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Diemer Attack 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Be3 d2d4 d7d5 e2e4 d5e4 b1c3 e7e5 c1e3 rnbqkbnr/ppp2ppp/8/4p3/3Pp3/2N1B3/PPP2PPP/R2QKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. dxe5 d2d4 d7d5 e2e4 d5e4 b1c3 e7e5 d4e5 rnbqkbnr/ppp2ppp/8/4P3/4p3/2N5/PPP2PPP/R1BQKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Rassmussen Attack 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Nge2 d2d4 d7d5 e2e4 d5e4 b1c3 e7e5 g1e2 rnbqkbnr/ppp2ppp/8/4p3/3Pp3/2N5/PPP1NPPP/R1BQKB1R b KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Simple Variation 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Nxe4 d2d4 d7d5 e2e4 d5e4 b1c3 e7e5 c3e4 rnbqkbnr/ppp2ppp/8/4p3/3PN3/8/PPP2PPP/R1BQKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Sneider Attack 1. e4 d5 2. d4 dxe4 3. Nc3 e5 4. Qh5 e2e4 d7d5 d2d4 d5e4 b1c3 e7e5 d1h5 rnbqkbnr/ppp2ppp/8/4p2Q/3Pp3/2N5/PPP2PPP/R1B1KBNR b KQkq - +D00 Blackmar-Diemer Gambit: Pietrowsky Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nc6 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 b8c6 r1bqkb1r/ppp1pppp/2n2n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Rasa-Studier Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Be3 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 c1e3 rnbqkb1r/ppp1pppp/5n2/8/3Pp3/2N1B3/PPP2PPP/R2QKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Ritter Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 b6 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 b7b6 rnbqkb1r/p1p1pppp/1p3n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Rook Pawn Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 h5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 h7h5 rnbqkb1r/ppp1ppp1/5n2/7p/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Ryder Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Qxf3 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 d1f3 rnbqkb1r/ppp1pppp/5n2/8/3P4/2N2Q2/PPP3PP/R1B1KBNR b KQkq - +D00 Blackmar-Diemer Gambit: Schlutter Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nbd7 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 b8d7 r1bqkb1r/pppnpppp/5n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Tartakower Variation 1. e4 d5 2. d4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5 e2e4 d7d5 d2d4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 c8f5 rn1qkb1r/ppp1pppp/5n2/5b2/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Teichmann Variation 1. e4 d5 2. d4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4 e2e4 d7d5 d2d4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 c8g4 rn1qkb1r/ppp1pppp/5n2/8/3P2b1/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Vienna Variation 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 Bf5 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 c8f5 rn1qkb1r/ppp1pppp/5n2/5b2/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit: Zeller Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Bf5 d2d4 d7d5 e2e4 d5e4 b1c3 c8f5 rn1qkbnr/ppp1pppp/8/5b2/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit: Zeller Defense, Soller Attack 1. d4 d5 2. e4 dxe4 3. Nc3 Bf5 4. f3 Nf6 5. Bc4 d2d4 d7d5 e2e4 d5e4 b1c3 c8f5 f2f3 g8f6 f1c4 rn1qkb1r/ppp1pppp/5n2/5b2/2BPp3/2N2P2/PPP3PP/R1BQK1NR b KQkq - +D00 Blackmar-Diemer Gambit: Ziegler Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c6 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 c7c6 rnbqkb1r/pp2pppp/2p2n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: von Popiel Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 c1g5 rnbqkb1r/ppp1pppp/5n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR b KQkq - +D00 Blackmar-Diemer Gambit: von Popiel Gambit, Zilbermints Variation 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg5 Bf5 5. Bxf6 exf6 6. g4 Bg6 7. Qe2 Bb4 8. Qb5+ d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 c1g5 c8f5 g5f6 e7f6 g2g4 f5g6 d1e2 f8b4 e2b5 rn1qk2r/ppp2ppp/5pb1/1Q6/1b1Pp1P1/2N5/PPP2P1P/R3KBNR b KQkq - +D00 Blackmar-Diemer, Lemberger Countergambit 1. d4 d5 2. Nc3 Nf6 3. e4 e5 d2d4 d7d5 b1c3 g8f6 e2e4 e7e5 rnbqkb1r/ppp2ppp/5n2/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game 1. d4 d5 d2d4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +D00 Queen's Pawn Game 1. d4 d5 2. e3 d2d4 d7d5 e2e3 rnbqkbnr/ppp1pppp/8/3p4/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq - +D00 Queen's Pawn Game 1. d4 d5 2. e3 Nf6 d2d4 d7d5 e2e3 g8f6 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation 1. d4 d5 2. Nc3 d2d4 d7d5 b1c3 rnbqkbnr/ppp1pppp/8/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Alburt Defense 1. d4 d5 2. Nc3 Bf5 d2d4 d7d5 b1c3 c8f5 rn1qkbnr/ppp1pppp/8/3p1b2/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Anti-Veresov 1. d4 d5 2. Nc3 Bg4 d2d4 d7d5 b1c3 c8g4 rn1qkbnr/ppp1pppp/8/3p4/3P2b1/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Fianchetto Defense 1. d4 g6 2. Nf3 Bg7 3. Nc3 d5 d2d4 g7g6 g1f3 f8g7 b1c3 d7d5 rnbqk1nr/ppp1ppbp/6p1/3p4/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Irish Gambit 1. d4 d5 2. Nc3 c5 d2d4 d7d5 b1c3 c7c5 rnbqkbnr/pp2pppp/8/2pp4/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Shaviliuk Gambit 1. d4 d5 2. Nc3 e5 d2d4 d7d5 b1c3 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Shropshire Defense 1. d4 d5 2. Nc3 h5 d2d4 d7d5 b1c3 h7h5 rnbqkbnr/ppp1ppp1/8/3p3p/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Hübsch Gambit 1. d4 Nf6 2. Nc3 d5 3. e4 Nxe4 d2d4 g8f6 b1c3 d7d5 e2e4 f6e4 rnbqkb1r/ppp1pppp/8/3p4/3Pn3/2N5/PPP2PPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Levitsky Attack 1. d4 d5 2. Bg5 d2d4 d7d5 c1g5 rnbqkbnr/ppp1pppp/8/3p2B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq - +D00 Queen's Pawn Game: Levitsky Attack, Welling Variation 1. d4 d5 2. Bg5 Bg4 d2d4 d7d5 c1g5 c8g4 rn1qkbnr/ppp1pppp/8/3p2B1/3P2b1/8/PPP1PPPP/RN1QKBNR w KQkq - +D00 Queen's Pawn Game: Mason Attack 1. d4 d5 2. f4 d2d4 d7d5 f2f4 rnbqkbnr/ppp1pppp/8/3p4/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq - +D00 Queen's Pawn Game: Mason Variation 1. d4 d5 2. Bf4 d2d4 d7d5 c1f4 rnbqkbnr/ppp1pppp/8/3p4/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq - +D00 Queen's Pawn Game: Morris Countergambit 1. d4 d5 2. Bf4 c5 3. e4 d2d4 d7d5 c1f4 c7c5 e2e4 rnbqkbnr/pp2pppp/8/2pp4/3PPB2/8/PPP2PPP/RN1QKBNR b KQkq - +D00 Queen's Pawn Game: Steinitz Countergambit 1. d4 d5 2. Bf4 c5 d2d4 d7d5 c1f4 c7c5 rnbqkbnr/pp2pppp/8/2pp4/3P1B2/8/PPP1PPPP/RN1QKBNR w KQkq - +D00 Queen's Pawn Game: Stonewall Attack 1. d4 d5 2. e3 Nf6 3. Bd3 d2d4 d7d5 e2e3 g8f6 f1d3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/3BP3/PPP2PPP/RNBQK1NR b KQkq - +D00 Queen's Pawn Game: Zurich Gambit 1. d4 d5 2. g4 d2d4 d7d5 g2g4 rnbqkbnr/ppp1pppp/8/3p4/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq - +D01 Queen's Pawn Game: Veresov Attack, Boyce Defense 1. d4 Nf6 2. Nc3 d5 3. Bg5 Ne4 d2d4 g8f6 b1c3 d7d5 c1g5 f6e4 rnbqkb1r/ppp1pppp/8/3p2B1/3Pn3/2N5/PPP1PPPP/R2QKBNR w KQkq - +D01 Queen's Pawn Game: Veresov Attack, Richter Variation 1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. f3 d2d4 g8f6 b1c3 d7d5 c1g5 c8f5 f2f3 rn1qkb1r/ppp1pppp/5n2/3p1bB1/3P4/2N2P2/PPP1P1PP/R2QKBNR b KQkq - +D01 Queen's Pawn Game: Veresov Attack, Two Knights System 1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 d2d4 g8f6 b1c3 d7d5 c1g5 b8d7 g1f3 r1bqkb1r/pppnpppp/5n2/3p2B1/3P4/2N2N2/PPP1PPPP/R2QKB1R b KQkq - +D01 Queen's Pawn Game: Veresov Attack, Two Knights System, Grünfeld Defense 1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 g6 d2d4 g8f6 b1c3 d7d5 c1g5 b8d7 g1f3 g7g6 r1bqkb1r/pppnpp1p/5np1/3p2B1/3P4/2N2N2/PPP1PPPP/R2QKB1R w KQkq - +D01 Queen's Pawn Game: Veresov Attack, Veresov Variation 1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. Bxf6 d2d4 g8f6 b1c3 d7d5 c1g5 c8f5 g5f6 rn1qkb1r/ppp1pppp/5B2/3p1b2/3P4/2N5/PPP1PPPP/R2QKBNR b KQkq - +D01 Rapport-Jobava System 1. d4 d5 2. Nc3 Nf6 3. Bf4 d2d4 d7d5 b1c3 g8f6 c1f4 rnbqkb1r/ppp1pppp/5n2/3p4/3P1B2/2N5/PPP1PPPP/R2QKBNR b KQkq - +D01 Richter-Veresov Attack 1. d4 Nf6 2. Nc3 d5 3. Bg5 d2d4 g8f6 b1c3 d7d5 c1g5 rnbqkb1r/ppp1pppp/5n2/3p2B1/3P4/2N5/PPP1PPPP/R2QKBNR b KQkq - +D01 Richter-Veresov Attack 1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 d2d4 g8f6 b1c3 d7d5 c1g5 c8f5 rn1qkb1r/ppp1pppp/5n2/3p1bB1/3P4/2N5/PPP1PPPP/R2QKBNR w KQkq - +D01 Veresov Opening: Malich Gambit 1. d4 Nf6 2. Nc3 d5 3. Bg5 c5 4. Bxf6 gxf6 5. e4 dxe4 6. d5 d2d4 g8f6 b1c3 d7d5 c1g5 c7c5 g5f6 g7f6 e2e4 d5e4 d4d5 rnbqkb1r/pp2pp1p/5p2/2pP4/4p3/2N5/PPP2PPP/R2QKBNR b KQkq - +D02 London System: Poisoned Pawn Variation 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nc3 d2d4 g8f6 g1f3 d7d5 c1f4 c7c5 e2e3 d8b6 b1c3 rnb1kb1r/pp2pppp/1q3n2/2pp4/3P1B2/2N1PN2/PPP2PPP/R2QKB1R b KQkq - +D02 Queen's Gambit Accepted: Rosenthal Variation 1. d4 d5 2. Nf3 e6 3. c4 dxc4 d2d4 d7d5 g1f3 e7e6 c2c4 d5c4 rnbqkbnr/ppp2ppp/4p3/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D02 Queen's Gambit Declined: Baltic Defense, Pseudo-Slav 1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 c6 d2d4 d7d5 g1f3 c8f5 c2c4 e7e6 b1c3 c7c6 rn1qkbnr/pp3ppp/2p1p3/3p1b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D02 Queen's Pawn Game: Anti-Torre 1. Nf3 d5 2. d4 Bg4 g1f3 d7d5 d2d4 c8g4 rn1qkbnr/ppp1pppp/8/3p4/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Chandler Gambit 1. d4 d5 2. Nf3 c5 3. g3 cxd4 4. Bg2 d2d4 d7d5 g1f3 c7c5 g2g3 c5d4 f1g2 rnbqkbnr/pp2pppp/8/3p4/3p4/5NP1/PPP1PPBP/RNBQK2R b KQkq - +D02 Queen's Pawn Game: Chigorin Variation 1. d4 d5 2. Nf3 Nc6 d2d4 d7d5 g1f3 b8c6 r1bqkbnr/ppp1pppp/2n5/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Krause Variation 1. d4 d5 2. Nf3 c5 d2d4 d7d5 g1f3 c7c5 rnbqkbnr/pp2pppp/8/2pp4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Levitsky Attack, Euwe Variation, Modern Line 1. d4 d5 2. Nf3 c6 3. Bg5 h6 4. Bh4 Qb6 d2d4 d7d5 g1f3 c7c6 c1g5 h7h6 g5h4 d8b6 rnb1kbnr/pp2ppp1/1qp4p/3p4/3P3B/5N2/PPP1PPPP/RN1QKB1R w KQkq - +D02 Queen's Pawn Game: London System 1. d4 d5 2. Nf3 Nf6 3. Bf4 d2d4 d7d5 g1f3 g8f6 c1f4 rnbqkb1r/ppp1pppp/5n2/3p4/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - +D02 Queen's Pawn Game: Symmetrical Variation 1. d4 d5 2. Nf3 Nf6 d2d4 d7d5 g1f3 g8f6 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan 1. d4 d5 2. Nf3 Nf6 3. g3 d2d4 d7d5 g1f3 g8f6 g2g3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq - +D02 Queen's Pawn Game: Zilbermints Countergambit 1. d4 d5 2. Nf3 Nf6 3. c4 b5 d2d4 d7d5 g1f3 g8f6 c2c4 b7b5 rnbqkb1r/p1p1pppp/5n2/1p1p4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Zukertort Variation 1. d4 d5 2. Nf3 d2d4 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - +D03 Queen's Pawn Game: Torre Attack 1. d4 d5 2. Nf3 Nf6 3. Bg5 d2d4 d7d5 g1f3 g8f6 c1g5 rnbqkb1r/ppp1pppp/5n2/3p2B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - +D03 Queen's Pawn Game: Torre Attack, Gossip Variation 1. d4 d5 2. Nf3 Nf6 3. Bg5 Ne4 d2d4 d7d5 g1f3 g8f6 c1g5 f6e4 rnbqkb1r/ppp1pppp/8/3p2B1/3Pn3/5N2/PPP1PPPP/RN1QKB1R w KQkq - +D03 Queen's Pawn Game: Torre Attack, Grünfeld Variation 1. d4 d5 2. Nf3 Nf6 3. Bg5 g6 d2d4 d7d5 g1f3 g8f6 c1g5 g7g6 rnbqkb1r/ppp1pp1p/5np1/3p2B1/3P4/5N2/PPP1PPPP/RN1QKB1R w KQkq - +D04 Queen's Pawn Game: Colle System 1. d4 d5 2. Nf3 Nf6 3. e3 d2d4 d7d5 g1f3 g8f6 e2e3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq - +D04 Queen's Pawn Game: Colle System, Anti-Colle 1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 d2d4 d7d5 g1f3 g8f6 e2e3 c8f5 rn1qkb1r/ppp1pppp/5n2/3p1b2/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq - +D04 Queen's Pawn Game: Colle System, Grünfeld Formation 1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Bd3 Bg7 d2d4 d7d5 g1f3 g8f6 e2e3 g7g6 f1d3 f8g7 rnbqk2r/ppp1ppbp/5np1/3p4/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq - +D05 Queen's Pawn Game: Colle System 1. d4 d5 2. Nf3 Nf6 3. e3 e6 d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq - +D05 Queen's Pawn Game: Colle System 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 f1d3 rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/3BPN2/PPP2PPP/RNBQK2R b KQkq - +D05 Queen's Pawn Game: Colle System, Traditional Colle 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c3 d2d4 g8f6 g1f3 e7e6 e2e3 c7c5 f1d3 d7d5 c2c3 rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/2PBPN2/PP3PPP/RNBQK2R b KQkq - +D05 Queen's Pawn Game: Zukertort Variation 1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 e6 5. b3 d2d4 d7d5 g1f3 c7c5 e2e3 g8f6 b1d2 e7e6 b2b3 rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/1P2PN2/P1PN1PPP/R1BQKB1R b KQkq - +D05 Rubinstein Opening 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 d2d4 g8f6 g1f3 e7e6 e2e3 c7c5 f1d3 d7d5 b2b3 rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/1P1BPN2/P1P2PPP/RNBQK2R b KQkq - +D05 Rubinstein Opening: Bogoljubov Defense 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 Nc6 6. O-O Bd6 7. Bb2 O-O d2d4 g8f6 g1f3 e7e6 e2e3 c7c5 f1d3 d7d5 b2b3 b8c6 e1g1 f8d6 c1b2 e8g8 r1bq1rk1/pp3ppp/2nbpn2/2pp4/3P4/1P1BPN2/PBP2PPP/RN1Q1RK1 w - - +D05 Rubinstein Opening: Classical Defense 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 Nc6 6. O-O Be7 7. Bb2 O-O d2d4 g8f6 g1f3 e7e6 e2e3 c7c5 f1d3 d7d5 b2b3 b8c6 e1g1 f8e7 c1b2 e8g8 r1bq1rk1/pp2bppp/2n1pn2/2pp4/3P4/1P1BPN2/PBP2PPP/RN1Q1RK1 w - - +D05 Rubinstein Opening: Semi-Slav Defense 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Bd6 5. O-O O-O 6. b3 Nbd7 7. Bb2 d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 f1d3 f8d6 e1g1 e8g8 b2b3 b8d7 c1b2 r1bq1rk1/pppn1ppp/3bpn2/3p4/3P4/1P1BPN2/PBP2PPP/RN1Q1RK1 b - - +D06 Queen's Gambit 1. d4 d5 2. c4 d2d4 d7d5 c2c4 rnbqkbnr/ppp1pppp/8/3p4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - +D06 Queen's Gambit Declined: Austrian Attack, Salvio Countergambit 1. d4 d5 2. c4 c5 3. dxc5 d4 d2d4 d7d5 c2c4 c7c5 d4c5 d5d4 rnbqkbnr/pp2pppp/8/2P5/2Pp4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Austrian Defense 1. d4 d5 2. c4 c5 d2d4 d7d5 c2c4 c7c5 rnbqkbnr/pp2pppp/8/2pp4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Austrian Defense, Gusev Countergambit 1. d4 d5 2. c4 c5 3. cxd5 Nf6 d2d4 d7d5 c2c4 c7c5 c4d5 g8f6 rnbqkb1r/pp2pppp/5n2/2pP4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Austrian Defense, Haberditz Variation 1. d4 d5 2. c4 c5 3. cxd5 Nf6 4. e4 Nxe4 5. dxc5 Qa5+ d2d4 d7d5 c2c4 c7c5 c4d5 g8f6 e2e4 f6e4 d4c5 d8a5 rnb1kb1r/pp2pppp/8/q1PP4/4n3/8/PP3PPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Baltic Defense 1. d4 d5 2. c4 Bf5 d2d4 d7d5 c2c4 c8f5 rn1qkbnr/ppp1pppp/8/3p1b2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Baltic Defense, Argentinian Gambit 1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Qa4+ c6 5. dxc6 Nxc6 d2d4 d7d5 c2c4 c8f5 c4d5 f5b1 d1a4 c7c6 d5c6 b8c6 r2qkbnr/pp2pppp/2n5/8/Q2P4/8/PP2PPPP/RbB1KBNR w KQkq - +D06 Queen's Gambit Declined: Baltic Defense, Pseudo-Chigorin 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 Nc6 d2d4 d7d5 c2c4 c8f5 b1c3 e7e6 g1f3 b8c6 r2qkbnr/ppp2ppp/2n1p3/3p1b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D06 Queen's Gambit Declined: Baltic Defense, Queen Attack 1. d4 d5 2. c4 Bf5 3. Qb3 d2d4 d7d5 c2c4 c8f5 d1b3 rn1qkbnr/ppp1pppp/8/3p1b2/2PP4/1Q6/PP2PPPP/RNB1KBNR b KQkq - +D06 Queen's Gambit Declined: Baltic Defense, Queen Attack Deferred 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Qb3 d2d4 d7d5 c2c4 c8f5 b1c3 e7e6 d1b3 rn1qkbnr/ppp2ppp/4p3/3p1b2/2PP4/1QN5/PP2PPPP/R1B1KBNR b KQkq - +D06 Queen's Gambit Declined: Marshall Defense 1. d4 d5 2. c4 Nf6 d2d4 d7d5 c2c4 g8f6 rnbqkb1r/ppp1pppp/5n2/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Marshall Defense, Tan Gambit 1. d4 d5 2. c4 Nf6 3. cxd5 c6 d2d4 d7d5 c2c4 g8f6 c4d5 c7c6 rnbqkb1r/pp2pppp/2p2n2/3P4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Zilbermints Gambit 1. d4 d5 2. c4 b5 d2d4 d7d5 c2c4 b7b5 rnbqkbnr/p1p1pppp/8/1p1p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense 1. d4 d5 2. c4 Nc6 d2d4 d7d5 c2c4 b8c6 r1bqkbnr/ppp1pppp/2n5/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense 1. d4 d5 2. c4 Nc6 3. Nc3 d2d4 d7d5 c2c4 b8c6 b1c3 r1bqkbnr/ppp1pppp/2n5/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +D07 Queen's Gambit Declined: Chigorin Defense 1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 d2d4 d7d5 c2c4 b8c6 b1c3 d5c4 r1bqkbnr/ppp1pppp/2n5/8/2pP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Exchange Variation 1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 d2d4 d7d5 c2c4 b8c6 c4d5 d8d5 r1b1kbnr/ppp1pppp/2n5/3q4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Exchange Variation, Costa's Line 1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. e3 e5 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 exd4 8. Ne2 d2d4 d7d5 c2c4 b8c6 c4d5 d8d5 e2e3 e7e5 b1c3 f8b4 c1d2 b4c3 d2c3 e5d4 g1e2 r1b1k1nr/ppp2ppp/2n5/3q4/3p4/2B1P3/PP2NPPP/R2QKB1R b KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Janowski Variation 1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3 d2d4 d7d5 c2c4 b8c6 b1c3 d5c4 g1f3 r1bqkbnr/ppp1pppp/2n5/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Lazard Gambit 1. d4 d5 2. c4 Nc6 3. Nf3 e5 d2d4 d7d5 c2c4 b8c6 g1f3 e7e5 r1bqkbnr/ppp2ppp/2n5/3pp3/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Main Line 1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 d2d4 d7d5 c2c4 b8c6 g1f3 c8g4 r2qkbnr/ppp1pppp/2n5/3p4/2PP2b1/5N2/PP2PPPP/RNBQKB1R w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Main Line, Alekhine Variation 1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. Qa4 d2d4 d7d5 c2c4 b8c6 g1f3 c8g4 d1a4 r2qkbnr/ppp1pppp/2n5/3p4/Q1PP2b1/5N2/PP2PPPP/RNB1KB1R b KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Modern Gambit 1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3 Nf6 d2d4 d7d5 c2c4 b8c6 b1c3 d5c4 g1f3 g8f6 r1bqkb1r/ppp1pppp/2n2n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Tartakower Gambit 1. d4 d5 2. c4 Nc6 3. Nc3 e5 d2d4 d7d5 c2c4 b8c6 b1c3 e7e5 r1bqkbnr/ppp2ppp/2n5/3pp3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit 1. d4 d5 2. c4 e5 d2d4 d7d5 c2c4 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Balogh Variation 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Qe7 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 d8e7 r1b1kbnr/ppp1qppp/2n5/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Janowski Variation 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 f6 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 f7f6 r1bqkbnr/ppp3pp/2n2p2/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Krenosz Variation 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Bg4 6. h3 Bxf3 7. Nxf3 Bb4+ 8. Bd2 Qe7 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 c8g4 h2h3 g4f3 d2f3 f8b4 c1d2 d8e7 r3k1nr/ppp1qppp/2n5/4P3/1bPp4/5N1P/PP1BPPP1/R2QKB1R w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Lasker Trap 1. d4 d5 2. c4 e5 3. dxe5 d4 4. e3 Bb4+ 5. Bd2 dxe3 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 e2e3 f8b4 c1d2 d4e3 rnbqk1nr/ppp2ppp/8/4P3/1bP5/4p3/PP1B1PPP/RN1QKBNR w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Modern Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 r1bqkbnr/ppp2ppp/2n5/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R b KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Normal Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 rnbqkbnr/ppp2ppp/8/4P3/2Pp4/5N2/PP2PPPP/RNBQKB1R b KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Tartakower Defense 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 c5 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 c7c5 rnbqkbnr/pp3ppp/8/2p1P3/2Pp4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3 r1bqkbnr/ppp2ppp/2n5/4P3/2Pp4/5NP1/PP2PP1P/RNBQKB1R b KQkq - +D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Be6 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Be6 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3 c8e6 r2qkbnr/ppp2ppp/2n1b3/4P3/2Pp4/5NP1/PP2PP1P/RNBQKB1R w KQkq - +D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Bf5 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bf5 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3 c8f5 r2qkbnr/ppp2ppp/2n5/4Pb2/2Pp4/5NP1/PP2PP1P/RNBQKB1R w KQkq - +D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Bg4 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bg4 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3 c8g4 r2qkbnr/ppp2ppp/2n5/4P3/2Pp2b1/5NP1/PP2PP1P/RNBQKB1R w KQkq - +D10 Slav Defense 1. d4 d5 2. c4 c6 d2d4 d7d5 c2c4 c7c6 rnbqkbnr/pp2pppp/2p5/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D10 Slav Defense 1. d4 d5 2. c4 c6 3. Nc3 d2d4 d7d5 c2c4 c7c6 b1c3 rnbqkbnr/pp2pppp/2p5/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +D10 Slav Defense 1. d4 d5 2. c4 c6 3. Nc3 dxc4 d2d4 d7d5 c2c4 c7c6 b1c3 d5c4 rnbqkbnr/pp2pppp/2p5/8/2pP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D10 Slav Defense: Diemer Gambit 1. c4 c6 2. e4 d5 3. d4 c2c4 c7c6 e2e4 d7d5 d2d4 rnbqkbnr/pp2pppp/2p5/3p4/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - +D10 Slav Defense: Exchange Variation 1. d4 d5 2. c4 c6 3. cxd5 d2d4 d7d5 c2c4 c7c6 c4d5 rnbqkbnr/pp2pppp/2p5/3P4/3P4/8/PP2PPPP/RNBQKBNR b KQkq - +D10 Slav Defense: Slav Gambit, Alekhine Attack 1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4 d2d4 d7d5 c2c4 c7c6 b1c3 d5c4 e2e4 rnbqkbnr/pp2pppp/2p5/8/2pPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +D10 Slav Defense: Winawer Countergambit 1. d4 d5 2. c4 c6 3. Nc3 e5 d2d4 d7d5 c2c4 c7c6 b1c3 e7e5 rnbqkbnr/pp3ppp/2p5/3pp3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D10 Slav Defense: Winawer Countergambit, Anti-Winawer Gambit 1. d4 d5 2. c4 c6 3. Nc3 e5 4. e4 d2d4 d7d5 c2c4 c7c6 b1c3 e7e5 e2e4 rnbqkbnr/pp3ppp/2p5/3pp3/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +D11 Slav Defense: Bonet Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c1g5 rnbqkb1r/pp2pppp/2p2n2/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R b KQkq - +D11 Slav Defense: Breyer Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd2 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1d2 rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/5N2/PP1NPPPP/R1BQKB1R b KQkq - +D11 Slav Defense: Modern Line 1. d4 d5 2. c4 c6 3. Nf3 d2d4 d7d5 c2c4 c7c6 g1f3 rnbqkbnr/pp2pppp/2p5/3p4/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +D11 Slav Defense: Quiet Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/4PN2/PP3PPP/RNBQKB1R b KQkq - +D11 Slav Defense: Quiet Variation, Pin Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/2PP2b1/4PN2/PP3PPP/RNBQKB1R w KQkq - +D12 Slav Defense: Quiet Variation, Amsterdam Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Nc3 e6 7. Ne5 Nfd7 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 c4d5 c6d5 b1c3 e7e6 f3e5 f6d7 rn1qkb1r/pp1n1ppp/4p3/3pNb2/3P4/2N1P3/PP3PPP/R1BQKB1R w KQkq - +D12 Slav Defense: Quiet Variation, Landau Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Qb3 Qc8 7. Bd2 e6 8. Na3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 c4d5 c6d5 d1b3 d8c8 c1d2 e7e6 b1a3 rnq1kb1r/pp3ppp/4pn2/3p1b2/3P4/NQ2PN2/PP1B1PPP/R3KB1R b KQkq - +D12 Slav Defense: Quiet Variation, Schallopp Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 rn1qkb1r/pp2pppp/2p2n2/3p1b2/2PP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D13 Slav Defense: Exchange Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c4d5 c6d5 rnbqkb1r/pp2pppp/5n2/3p4/3P4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D13 Slav Defense: Exchange Variation, Schallopp Variation 1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. c4 c6 5. cxd5 cxd5 6. Nc3 d2d4 d7d5 g1f3 g8f6 e2e3 c8f5 c2c4 c7c6 c4d5 c6d5 b1c3 rn1qkb1r/pp2pppp/5n2/3p1b2/3P4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D14 Slav Defense: Exchange Variation, Symmetrical Line 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf5 d2d4 d7d5 c2c4 c7c6 c4d5 c6d5 b1c3 g8f6 g1f3 b8c6 c1f4 c8f5 r2qkb1r/pp2pppp/2n2n2/3p1b2/3P1B2/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D14 Slav Defense: Exchange Variation, Trifunovic Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Qb3 Bb4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c4d5 c6d5 b1c3 b8c6 c1f4 c8f5 e2e3 e7e6 d1b3 f8b4 r2qk2r/pp3ppp/2n1pn2/3p1b2/1b1P1B2/1QN1PN2/PP3PPP/R3KB1R w KQkq - +D15 Slav Defense: Alekhine Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e3 rnbqkb1r/pp2pppp/2p2n2/8/2pP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D15 Slav Defense: Chameleon Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 a7a6 rnbqkb1r/1p2pppp/p1p2n2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D15 Slav Defense: Chameleon Variation, Advance System 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 a7a6 c4c5 rnbqkb1r/1p2pppp/p1p2n2/2Pp4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D15 Slav Defense: Geller Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e4 rnbqkb1r/pp2pppp/2p2n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D15 Slav Defense: Geller Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 b5 6. e5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e4 b7b5 e4e5 rnbqkb1r/p3pppp/2p2n2/1p2P3/2pP4/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D15 Slav Defense: Schlechter Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 g7g6 rnbqkb1r/pp2pp1p/2p2np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D15 Slav Defense: Süchting Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 Qb6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d8b6 rnb1kb1r/pp2pppp/1qp2n2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D15 Slav Defense: Three Knights Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D15 Slav Defense: Two Knights Attack 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 rnbqkb1r/pp2pppp/2p2n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D16 Slav Defense: Alapin Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 rnbqkb1r/pp2pppp/2p2n2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R b KQkq - +D16 Slav Defense: Smyslov Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 b8a6 r1bqkb1r/pp2pppp/n1p2n2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq - +D16 Slav Defense: Soultanbeieff Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 e7e6 rnbqkb1r/pp3ppp/2p1pn2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq - +D16 Slav Defense: Steiner Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bg4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8g4 rn1qkb1r/pp2pppp/2p2n2/8/P1pP2b1/2N2N2/1P2PPPP/R1BQKB1R w KQkq - +D17 Slav Defense: Czech Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq - +D17 Slav Defense: Czech Variation, Bled Attack 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Nh4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3h4 rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP3N/2N5/1P2PPPP/R1BQKB1R b KQkq - +D17 Slav Defense: Czech Variation, Carlsbad Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 b8d7 e5c4 d8c7 g2g3 e7e5 r3kb1r/ppqn1ppp/2p2n2/4pb2/P1NP4/2N3P1/1P2PP1P/R1BQKB1R w KQkq - +D17 Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 g5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 b8d7 e5c4 d8c7 g2g3 e7e5 d4e5 d7e5 c1f4 f6d7 f1g2 g7g5 r3kb1r/ppqn1p1p/2p5/4nbp1/P1N2B2/2N3P1/1P2PPBP/R2QK2R w KQkq - +D17 Slav Defense: Czech Variation, Krause Attack 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 rn1qkb1r/pp2pppp/2p2n2/4Nb2/P1pP4/2N5/1P2PPPP/R1BQKB1R b KQkq - +D17 Slav Defense: Czech Variation, Krause Attack, Fazekas Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Na6 7. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 b8a6 e2e4 r2qkb1r/pp2pppp/n1p2n2/4Nb2/P1pPP3/2N5/1P3PPP/R1BQKB1R b KQkq - +D17 Slav Defense: Czech Variation, Wiesbaden Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 e7e6 rn1qkb1r/pp3ppp/2p1pn2/4Nb2/P1pP4/2N5/1P2PPPP/R1BQKB1R w KQkq - +D17 Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 7. f3 Bb4 8. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 e7e6 f2f3 f8b4 e2e4 rn1qk2r/pp3ppp/2p1pn2/4Nb2/PbpPP3/2N2P2/1P4PP/R1BQKB1R b KQkq - +D18 Slav Defense: Czech Variation, Classical System 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R b KQkq - +D18 Slav Defense: Czech Variation, Lasker Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Na6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 b8a6 r2qkb1r/pp2pppp/n1p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R w KQkq - +D19 Slav Defense: Czech Variation, Classical System, Main Line 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1 e8g8 d1e2 rn1q1rk1/pp3ppp/2p1pn2/5b2/PbBP4/2N1PN2/1P2QPPP/R1B2RK1 b - - +D19 Slav Defense: Czech Variation, Dutch Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1 rn1qk2r/pp3ppp/2p1pn2/5b2/PbBP4/2N1PN2/1P3PPP/R1BQ1RK1 b kq - +D19 Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Ne4 10. g4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1 e8g8 d1e2 f6e4 g2g4 rn1q1rk1/pp3ppp/2p1p3/5b2/PbBPn1P1/2N1PN2/1P2QP1P/R1B2RK1 b - - +D20 Queen's Gambit Accepted 1. d4 d5 2. c4 dxc4 d2d4 d7d5 c2c4 d5c4 rnbqkbnr/ppp1pppp/8/8/2pP4/8/PP2PPPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Accelerated Mannheim Variation 1. d4 d5 2. c4 dxc4 3. Qa4+ d2d4 d7d5 c2c4 d5c4 d1a4 rnbqkbnr/ppp1pppp/8/8/Q1pP4/8/PP2PPPP/RNB1KBNR b KQkq - +D20 Queen's Gambit Accepted: Central Variation, Alekhine System 1. d4 d5 2. c4 dxc4 3. e4 Nf6 d2d4 d7d5 c2c4 d5c4 e2e4 g8f6 rnbqkb1r/ppp1pppp/5n2/8/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, Greco Variation 1. d4 d5 2. c4 dxc4 3. e4 b5 d2d4 d7d5 c2c4 d5c4 e2e4 b7b5 rnbqkbnr/p1p1pppp/8/1p6/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, McDonnell Defense 1. d4 d5 2. c4 dxc4 3. e4 e5 d2d4 d7d5 c2c4 d5c4 e2e4 e7e5 rnbqkbnr/ppp2ppp/8/4p3/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, McDonnell Defense, Somov Gambit 1. d4 d5 2. c4 dxc4 3. e4 e5 4. Bxc4 d2d4 d7d5 c2c4 d5c4 e2e4 e7e5 f1c4 rnbqkbnr/ppp2ppp/8/4p3/2BPP3/8/PP3PPP/RNBQK1NR b KQkq - +D20 Queen's Gambit Accepted: Central Variation, Modern Defense 1. d4 d5 2. c4 dxc4 3. e4 Nc6 d2d4 d7d5 c2c4 d5c4 e2e4 b8c6 r1bqkbnr/ppp1pppp/2n5/8/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, Rubinstein Defense 1. d4 d5 2. c4 dxc4 3. e4 c5 d2d4 d7d5 c2c4 d5c4 e2e4 c7c5 rnbqkbnr/pp2pppp/8/2p5/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, Rubinstein Defense, Yefimov Gambit 1. d4 d5 2. c4 dxc4 3. e4 c5 4. d5 b5 d2d4 d7d5 c2c4 d5c4 e2e4 c7c5 d4d5 b7b5 rnbqkbnr/p3pppp/8/1ppP4/2p1P3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Linares Variation 1. d4 d5 2. c4 dxc4 3. e4 c5 4. d5 Nf6 5. Nc3 b5 d2d4 d7d5 c2c4 d5c4 e2e4 c7c5 d4d5 g8f6 b1c3 b7b5 rnbqkb1r/p3pppp/5n2/1ppP4/2p1P3/2N5/PP3PPP/R1BQKBNR w KQkq - +D20 Queen's Gambit Accepted: Old Variation 1. d4 d5 2. c4 dxc4 3. e3 d2d4 d7d5 c2c4 d5c4 e2e3 rnbqkbnr/ppp1pppp/8/8/2pP4/4P3/PP3PPP/RNBQKBNR b KQkq - +D20 Queen's Gambit Accepted: Old Variation, Billinger Gambit 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. a3 d2d4 d7d5 c2c4 d5c4 e2e3 e7e5 f1c4 e5d4 d1b3 d8e7 a2a3 rnb1kbnr/ppp1qppp/8/8/2Bp4/PQ2P3/1P3PPP/RNB1K1NR b KQkq - +D20 Queen's Gambit Accepted: Old Variation, Christensen Gambit 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Nf3 d2d4 d7d5 c2c4 d5c4 e2e3 e7e5 f1c4 e5d4 d1b3 d8e7 g1f3 rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2PN2/PP3PPP/RNB1K2R b KQkq - +D20 Queen's Gambit Accepted: Old Variation, Korchnoi Gambit 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Kf1 d2d4 d7d5 c2c4 d5c4 e2e3 e7e5 f1c4 e5d4 d1b3 d8e7 e1f1 rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2P3/PP3PPP/RNB2KNR b kq - +D20 Queen's Gambit Accepted: Old Variation, Novikov Gambit 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Nd2 d2d4 d7d5 c2c4 d5c4 e2e3 e7e5 f1c4 e5d4 d1b3 d8e7 b1d2 rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2P3/PP1N1PPP/R1B1K1NR b KQkq - +D20 Queen's Gambit Accepted: Saduleto Variation 1. d4 d5 2. c4 dxc4 3. e4 d2d4 d7d5 c2c4 d5c4 e2e4 rnbqkbnr/ppp1pppp/8/8/2pPP3/8/PP3PPP/RNBQKBNR b KQkq - +D20 Queen's Gambit Accepted: Schwartz Defense 1. d4 d5 2. c4 dxc4 3. e4 f5 d2d4 d7d5 c2c4 d5c4 e2e4 f7f5 rnbqkbnr/ppp1p1pp/8/5p2/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D21 Queen's Gambit Accepted: Alekhine Defense, Borisenko-Furman Variation 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e4 d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e4 rnbqkbnr/1pp1pppp/p7/8/2pPP3/5N2/PP3PPP/RNBQKB1R b KQkq - +D21 Queen's Gambit Accepted: Godes Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nd7 d2d4 d7d5 c2c4 d5c4 g1f3 b8d7 r1bqkbnr/pppnpppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D21 Queen's Gambit Accepted: Gunsberg Defense 1. d4 d5 2. c4 dxc4 3. Nf3 c5 d2d4 d7d5 c2c4 d5c4 g1f3 c7c5 rnbqkbnr/pp2pppp/8/2p5/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D21 Queen's Gambit Accepted: Normal Variation 1. d4 d5 2. c4 dxc4 3. Nf3 d2d4 d7d5 c2c4 d5c4 g1f3 rnbqkbnr/ppp1pppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +D21 Queen's Gambit Accepted: Slav Gambit 1. d4 d5 2. c4 dxc4 3. Nf3 b5 d2d4 d7d5 c2c4 d5c4 g1f3 b7b5 rnbqkbnr/p1p1pppp/8/1p6/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D22 Queen's Gambit Accepted: Alekhine Defense 1. d4 d5 2. c4 dxc4 3. Nf3 a6 d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 rnbqkbnr/1pp1pppp/p7/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D22 Queen's Gambit Accepted: Alekhine Defense, Alatortsev Variation 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Bg4 5. Bxc4 e6 6. d5 d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e3 c8g4 f1c4 e7e6 d4d5 rn1qkbnr/1pp2ppp/p3p3/3P4/2B3b1/4PN2/PP3PPP/RNBQK2R b KQkq - +D22 Queen's Gambit Accepted: Alekhine Defense, Haberditz Variation 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 b5 d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e3 b7b5 rnbqkbnr/2p1pppp/p7/1p6/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D23 Queen's Gambit Accepted 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 rnbqkb1r/ppp1pppp/5n2/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D23 Queen's Gambit Accepted: Mannheim Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 d1a4 rnbqkb1r/ppp1pppp/5n2/8/Q1pP4/5N2/PP2PPPP/RNB1KB1R b KQkq - +D24 Queen's Gambit Accepted: Bogoljubov Defense 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e4 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 b1c3 a7a6 e2e4 rnbqkb1r/1pp1pppp/p4n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D24 Queen's Gambit Accepted: Gunsberg Defense, Prianishenmo Gambit 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 c5 5. d5 e6 6. e4 exd5 7. e5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 b1c3 c7c5 d4d5 e7e6 e2e4 e6d5 e4e5 rnbqkb1r/pp3ppp/5n2/2ppP3/2p5/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D24 Queen's Gambit Accepted: Showalter Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 b1c3 rnbqkb1r/ppp1pppp/5n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D25 Queen's Gambit Accepted: Janowski-Larsen Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 c8g4 rn1qkb1r/ppp1pppp/5n2/8/2pP2b1/4PN2/PP3PPP/RNBQKB1R w KQkq - +D25 Queen's Gambit Accepted: Normal Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 rnbqkb1r/ppp1pppp/5n2/8/2pP4/4PN2/PP3PPP/RNBQKB1R b KQkq - +D25 Queen's Gambit Accepted: Smyslov Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 g7g6 rnbqkb1r/ppp1pp1p/5np1/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D25 Queen's Gambit Accepted: Winawer Defense 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Be6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 c8e6 rn1qkb1r/ppp1pppp/4bn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D26 Queen's Gambit Accepted: Classical Defense 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQK2R w KQkq - +D26 Queen's Gambit Accepted: Classical Defense, Normal Line 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 b kq - +D26 Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Development Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 b8c6 r1bqkb1r/pp3ppp/2n1pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq - +D26 Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Exchange Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O cxd4 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 c5d4 rnbqkb1r/pp3ppp/4pn2/8/2Bp4/4PN2/PP3PPP/RNBQ1RK1 w kq - +D26 Queen's Gambit Accepted: Classical, Furman Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. e4 b5 10. e5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 d1e2 a7a6 d4c5 f8c5 e1g1 b8c6 e3e4 b7b5 e4e5 r1bqk2r/5ppp/p1n1pn2/1pb1P3/2B5/5N2/PP2QPPP/RNB2RK1 b kq - +D26 Queen's Gambit Accepted: Normal Variation, Traditional System 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 rnbqkb1r/ppp2ppp/4pn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D27 Queen's Gambit Accepted: Classical Defense, Main Line 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq - +D27 Queen's Gambit Accepted: Classical Defense, Rubinstein Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. a4 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 a2a4 rnbqkb1r/1p3ppp/p3pn2/2p5/P1BP4/4PN2/1P3PPP/RNBQ1RK1 b kq - +D27 Queen's Gambit Accepted: Classical Defense, Russian Gambit 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O a6 7. e4 d2d4 d7d5 c2c4 d5c4 e2e3 g8f6 f1c4 e7e6 g1f3 c7c5 e1g1 a7a6 e3e4 rnbqkb1r/1p3ppp/p3pn2/2p5/2BPP3/5N2/PP3PPP/RNBQ1RK1 b kq - +D27 Queen's Gambit Accepted: Furman Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Bxc5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d4c5 f8c5 rnbqk2r/1p3ppp/p3pn2/2b5/2B5/4PN2/PP3PPP/RNBQ1RK1 w kq - +D28 Queen's Gambit Accepted: Classical Defense, Alekhine System 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP2QPPP/RNB2RK1 b kq - +D28 Queen's Gambit Accepted: Classical Defense, Alekhine System, No Main Line 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 rnbqkb1r/5ppp/p3pn2/1pp5/2BP4/4PN2/PP2QPPP/RNB2RK1 w kq - +D28 Queen's Gambit Accepted: Classical, Flohr Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Nc6 9. Rd1 c4 10. Bc2 Nb4 11. Nc3 Nxc2 12. Qxc2 Bb7 13. d5 Qc7 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 b8c6 f1d1 c5c4 b3c2 c6b4 b1c3 b4c2 e2c2 c8b7 d4d5 d8c7 r3kb1r/1bq2ppp/p3pn2/1p1P4/2p5/2N1PN2/PPQ2PPP/R1BR2K1 w kq - +D29 Queen's Gambit Accepted: Classical Defense, Alekhine System, Main Line 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 c8b7 rn1qkb1r/1b3ppp/p3pn2/1pp5/3P4/1B2PN2/PP2QPPP/RNB2RK1 w kq - +D29 Queen's Gambit Accepted: Classical Defense, Alekhine System, Smyslov Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 9. Rd1 Nbd7 10. Nc3 Bd6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 c8b7 f1d1 b8d7 b1c3 f8d6 r2qk2r/1b1n1ppp/p2bpn2/1pp5/3P4/1BN1PN2/PP2QPPP/R1BR2K1 w kq - +D30 French Defense: Diemer-Duhm Gambit 1. d4 d5 2. c4 e6 3. e4 dxe4 d2d4 d7d5 c2c4 e7e6 e2e4 d5e4 rnbqkbnr/ppp2ppp/4p3/8/2PPp3/8/PP3PPP/RNBQKBNR w KQkq - +D30 Queen's Gambit Declined 1. d4 d5 2. c4 e6 d2d4 d7d5 c2c4 e7e6 rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D30 Queen's Gambit Declined: Capablanca Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 h6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 c1g5 h7h6 rnbqkb1r/ppp2pp1/4pn1p/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R w KQkq - +D30 Queen's Gambit Declined: Capablanca Variation 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Bg5 c6 5. Nbd2 Nbd7 6. e3 d2d4 g8f6 g1f3 e7e6 c2c4 d7d5 c1g5 c7c6 b1d2 b8d7 e2e3 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/4PN2/PP1N1PPP/R2QKB1R b KQkq - +D30 Queen's Gambit Declined: Semmering Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Nbd7 6. Bd3 c5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 e7e6 b1d2 b8d7 f1d3 c6c5 r1bqkb1r/pp1n1ppp/4pn2/2pp4/2PP4/3BPN2/PP1N1PPP/R1BQK2R w KQkq - +D30 Queen's Gambit Declined: Spielmann Variation 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 c6 5. Nbd2 g6 d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 e2e3 c7c6 b1d2 g7g6 rnbqkb1r/pp3p1p/2p1pnp1/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R w KQkq - +D30 Queen's Gambit Declined: Stonewall Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Ne4 6. Bd3 f5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 e7e6 b1d2 f6e4 f1d3 f7f5 rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/3BPN2/PP1N1PPP/R1BQK2R w KQkq - +D30 Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch 1. d4 d5 2. c4 e6 3. Nf3 c5 d2d4 d7d5 c2c4 e7e6 g1f3 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D30 Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch Bishop Attack 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Bg5 d2d4 d7d5 c2c4 e7e6 g1f3 c7c5 c4d5 e6d5 c1g5 rnbqkbnr/pp3ppp/8/2pp2B1/3P4/5N2/PP2PPPP/RN1QKB1R b KQkq - +D30 Queen's Gambit Declined: Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R b KQkq - +D30 Queen's Gambit Declined: Vienna Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Bb4+ d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 c1g5 f8b4 rnbqk2r/ppp2ppp/4pn2/3p2B1/1bPP4/5N2/PP2PPPP/RN1QKB1R w KQkq - +D30 Semi-Slav Defense: Quiet Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 e7e6 b1d2 rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R b KQkq - +D30 Semi-Slav Defense: Quiet Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Nbd7 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 e7e6 b1d2 b8d7 r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R w KQkq - +D31 Queen's Gambit Declined: Alapin Variation 1. d4 e6 2. c4 b6 3. Nc3 d5 d2d4 e7e6 c2c4 b7b6 b1c3 d7d5 rnbqkbnr/p1p2ppp/1p2p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D31 Queen's Gambit Declined: Charousek Variation 1. d4 d5 2. c4 e6 3. Nc3 Be7 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 rnbqk1nr/ppp1bppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D31 Queen's Gambit Declined: Charousek Variation, Miladinovic Gambit 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. e4 dxe4 5. f3 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 e2e4 d5e4 f2f3 rnbqk1nr/ppp1bppp/4p3/8/2PPp3/2N2P2/PP4PP/R1BQKBNR b KQkq - +D31 Queen's Gambit Declined: Janowski Variation 1. d4 d5 2. c4 e6 3. Nc3 a6 d2d4 d7d5 c2c4 e7e6 b1c3 a7a6 rnbqkbnr/1pp2ppp/p3p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D31 Queen's Gambit Declined: Queen's Knight Variation 1. d4 d5 2. c4 e6 3. Nc3 d2d4 d7d5 c2c4 e7e6 b1c3 rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +D31 Queen's Gambit Declined: Semi-Slav, Abrahams Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 a5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 a2a4 f8b4 e2e3 b7b5 c1d2 a7a5 rnbqk1nr/5ppp/2p1p3/pp6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - +D31 Queen's Gambit Declined: Semi-Slav, Junge Variation 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nc3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 Qb6 d2d4 d7d5 c2c4 e7e6 g1f3 c7c6 b1c3 d5c4 a2a4 f8b4 e2e3 b7b5 c1d2 d8b6 rnb1k1nr/p4ppp/1qp1p3/1p6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - +D31 Queen's Gambit Declined: Semi-Slav, Koomen Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. Bd2 Qe7 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 e2e3 b7b5 a2a4 f8b4 c1d2 d8e7 rnb1k1nr/p3qppp/2p1p3/1p6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - +D31 Queen's Gambit Declined: Uhlmann Variation 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. Rc1 dxc4 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 a1c1 d5c4 rnbq1rk1/ppp1bpp1/4pn1p/8/2pP3B/2N2N2/PP2PPPP/2RQKB1R w K - +D31 Semi-Slav Defense: Accelerated Move Order 1. d4 d5 2. c4 e6 3. Nc3 c6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 rnbqkbnr/pp3ppp/2p1p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D31 Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e3 f7f5 g2g4 rnbqkbnr/pp4pp/2p1p3/3p1p2/2PP2P1/2N1P3/PP3P1P/R1BQKBNR b KQkq - +D31 Semi-Slav Defense: Gunderam Gambit 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. f3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 d5e4 f2f3 rnbqkbnr/pp3ppp/2p1p3/8/2PPp3/2N2P2/PP4PP/R1BQKBNR b KQkq - +D31 Semi-Slav Defense: Marshall Gambit 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 rnbqkbnr/pp3ppp/2p1p3/3p4/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +D31 Semi-Slav Defense: Marshall Gambit, Forgotten Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 d5e4 c3e4 f8b4 e4c3 rnbqk1nr/pp3ppp/2p1p3/8/1bPP4/2N5/PP3PPP/R1BQKBNR b KQkq - +D31 Semi-Slav Defense: Marshall Gambit, Main Line 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 d5e4 c3e4 f8b4 c1d2 rnbqk1nr/pp3ppp/2p1p3/8/1bPPN3/8/PP1B1PPP/R2QKBNR b KQkq - +D31 Semi-Slav Defense: Marshall Gambit, Tolush Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 c5 9. Bxc5 Qxg2 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 d5e4 c3e4 f8b4 c1d2 d8d4 d2b4 d4e4 f1e2 c6c5 b4c5 e4g2 rnb1k1nr/pp3ppp/4p3/2B5/2P5/8/PP2BPqP/R2QK1NR w KQkq - +D31 Semi-Slav Defense: Noteboom Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 rnbqkbnr/pp3ppp/2p1p3/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D31 Semi-Slav Defense: Noteboom Variation, Abrahams Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 Bxc3+ 7. bxc3 b5 8. axb5 cxb5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 a2a4 f8b4 e2e3 b4c3 b2c3 b7b5 a4b5 c6b5 rnbqk1nr/p4ppp/4p3/1p6/2pP4/2P1PN2/5PPP/R1BQKB1R w KQkq - +D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Gambit 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. g3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 g2g3 rnbqkbnr/pp3ppp/2p1p3/8/2pP4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 c1g5 rnbqkbnr/pp3ppp/2p1p3/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 f6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 c1g5 f7f6 rnbqkbnr/pp4pp/2p1pp2/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D32 Queen's Gambit Declined: Tarrasch Defense 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 rnbqkbnr/pp3ppp/8/2pp4/3P4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D32 Tarrasch Defense 1. d4 d5 2. c4 e6 3. Nc3 c5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D32 Tarrasch Defense: Grünfeld Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. dxc5 d4 7. Na4 b5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 d4c5 d5d4 c3a4 b7b5 r1bqkbnr/p4ppp/2n5/1pP5/N2p4/5N2/PP2PPPP/R1BQKB1R w KQkq b6 +D32 Tarrasch Defense: Marshall Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. e4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 e2e4 rnbqkbnr/pp3ppp/8/2pp4/3PP3/2N5/PP3PPP/R1BQKBNR b KQkq - +D32 Tarrasch Defense: Schara Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 c5d4 rnbqkbnr/pp3ppp/4p3/3P4/3p4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D32 Tarrasch Defense: Tarrasch Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. dxc5 d4 6. Na4 b5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 d4c5 d5d4 c3a4 b7b5 rnbqkbnr/p4ppp/8/1pP5/N2p4/8/PP2PPPP/R1BQKBNR w KQkq b6 +D32 Tarrasch Defense: Two Knights Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 rnbqkbnr/pp3ppp/8/2pp4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D32 Tarrasch Defense: von Hennig Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd1 exd5 7. Qxd5 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 c5d4 d1d4 b8c6 d4d1 e6d5 d1d5 c8e6 r2qkbnr/pp3ppp/2n1b3/3Q4/8/2N5/PP2PPPP/R1B1KBNR w KQkq - +D33 Tarrasch Defense: Prague Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 r1bqkb1r/pp3ppp/2n2n2/2pp4/3P4/2N2NP1/PP2PP1P/R1BQKB1R w KQkq - +D33 Tarrasch Defense: Rubinstein System 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 r1bqkbnr/pp3ppp/2n5/2pp4/3P4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +D33 Tarrasch Defense: Swedish Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 c4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 c5c4 r1bqkbnr/pp3ppp/2n5/3p4/2pP4/2N2NP1/PP2PP1P/R1BQKB1R w KQkq - +D33 Tarrasch Defense: Swedish Variation, Central Break 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 c4 7. e4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 c5c4 e2e4 r1bqkbnr/pp3ppp/2n5/3p4/2pPP3/2N2NP1/PP3P1P/R1BQKB1R b KQkq - +D33 Tarrasch Defense: Wagner Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Bg4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 c8g4 r2qkb1r/pp3ppp/2n2n2/2pp4/3P2b1/2N2NP1/PP2PPBP/R1BQK2R w KQkq - +D34 Queen's Gambit Declined: Tarrasch Defense, Stoltz Variation 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. Nc3 O-O 9. Bg5 Be6 10. Rc1 b6 d2d4 d7d5 c2c4 e7e6 g1f3 c7c5 c4d5 e6d5 g2g3 b8c6 f1g2 g8f6 e1g1 f8e7 b1c3 e8g8 c1g5 c8e6 a1c1 b7b6 r2q1rk1/p3bppp/1pn1bn2/2pp2B1/3P4/2N2NP1/PP2PPBP/2RQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 r1bq1rk1/pp2bppp/2n2n2/2pp4/3P4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Advance Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 c4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5c4 r1bq1rk1/pp2bppp/2n2n2/3p2B1/2pP4/2N2NP1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Bogoljubov Variation 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. Nf3 d5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be6 10. Rc1 c4 d2d4 g8f6 c2c4 e7e6 b1c3 c7c5 g1f3 d7d5 c4d5 e6d5 g2g3 b8c6 f1g2 f8e7 e1g1 e8g8 c1g5 c8e6 a1c1 c5c4 r2q1rk1/pp2bppp/2n1bn2/3p2B1/2pP4/2N2NP1/PP2PPBP/2RQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Carlsbad Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 r1bq1rk1/pp2bppp/2n2n2/2pp2B1/3P4/2N2NP1/PP2PPBP/R2Q1RK1 b - - +D34 Tarrasch Defense: Classical Variation, Chandler Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5d4 f3d4 h7h6 g5e3 f8e8 a1c1 c8e6 r2qr1k1/pp2bpp1/2n1bn1p/3p4/3N4/2N1B1P1/PP2PPBP/2RQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Classical Tarrasch Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 d4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 d4c5 d5d4 r1bq1rk1/pp2bppp/2n2n2/2P5/3p4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Endgame Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c8e6 r2q1rk1/pp2bppp/2n1bn2/2pp2B1/3P4/2N2NP1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Main Line 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5d4 f3d4 h7h6 g5e3 f8e8 r1bqr1k1/pp2bpp1/2n2n1p/3p4/3N4/2N1B1P1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Petursson Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 Re8 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5d4 f3d4 f8e8 r1bqr1k1/pp2bppp/2n2n2/3p2B1/3N4/2N3P1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Réti Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 Bxc5 10. Na4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 d4c5 e7c5 c3a4 r1bq1rk1/pp3ppp/2n2n2/2bp4/N7/5NP1/PP2PPBP/R1BQ1RK1 b - - +D34 Tarrasch Defense: Classical Variation, Spassky Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Bg4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5d4 f3d4 h7h6 g5e3 c8g4 r2q1rk1/pp2bpp1/2n2n1p/3p4/3N2b1/2N1B1P1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Prague Variation, Main Line 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 r1bqk2r/pp2bppp/2n2n2/2pp4/3P4/2N2NP1/PP2PPBP/R1BQK2R w KQkq - +D35 Queen's Gambit Declined: Exchange Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 rnbqkb1r/ppp2ppp/4pn2/3P4/3P4/2N5/PP2PPPP/R1BQKBNR b KQkq - +D35 Queen's Gambit Declined: Exchange Variation, Positional Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 e6d5 c1g5 rnbqkb1r/ppp2ppp/5n2/3p2B1/3P4/2N5/PP2PPPP/R2QKBNR b KQkq - +D35 Queen's Gambit Declined: Exchange Variation, Positional Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 e6d5 c1g5 c7c6 rnbqkb1r/pp3ppp/2p2n2/3p2B1/3P4/2N5/PP2PPPP/R2QKBNR w KQkq - +D35 Queen's Gambit Declined: Exchange Variation, Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bf4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 b8d7 c4d5 e6d5 c1f4 r1bqkb1r/pppn1ppp/5n2/3p4/3P1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D35 Queen's Gambit Declined: Exchange, Chameleon Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nbd7 8. Qc2 Re8 9. Nge2 Nf8 10. O-O-O d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 e6d5 c1g5 f8e7 e2e3 e8g8 f1d3 b8d7 d1c2 f8e8 g1e2 d7f8 e1c1 r1bqrnk1/ppp1bppp/5n2/3p2B1/3P4/2NBP3/PPQ1NPPP/2KR3R b - - +D35 Queen's Gambit Declined: Harrwitz Attack 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bf4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1f4 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP1B2/2N5/PP2PPPP/R2QKBNR b KQkq - +D35 Queen's Gambit Declined: Normal Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D36 Queen's Gambit Declined: Exchange Variation, Reshevsky Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 e6d5 c1g5 c7c6 d1c2 rnbqkb1r/pp3ppp/2p2n2/3p2B1/3P4/2N5/PPQ1PPPP/R3KBNR b KQkq - +D37 Queen's Gambit Declined: Barmen Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 b8d7 r1bqkb1r/pppn1ppp/4pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D37 Queen's Gambit Declined: Harrwitz Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 rnbqk2r/ppp1bppp/4pn2/3p4/2PP1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D37 Queen's Gambit Declined: Harrwitz Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Qc2 Nc6 9. Rd1 Qa5 10. a3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 e8g8 e2e3 c7c5 d4c5 e7c5 d1c2 b8c6 a1d1 d8a5 a2a3 r1b2rk1/pp3ppp/2n1pn2/q1bp4/2P2B2/P1N1PN2/1PQ2PPP/3RKB1R b K - +D37 Queen's Gambit Declined: Harrwitz Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Qc2 Nc6 9. a3 Qa5 10. O-O-O d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 e8g8 e2e3 c7c5 d4c5 e7c5 d1c2 b8c6 a2a3 d8a5 e1c1 r1b2rk1/pp3ppp/2n1pn2/q1bp4/2P2B2/P1N1PN2/1PQ2PPP/2KR1B1R b - - +D37 Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bf4 O-O 6. e3 b6 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1f4 e8g8 e2e3 b7b6 rnbq1rk1/p1p1bppp/1p2pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - +D37 Queen's Gambit Declined: Harrwitz Attack, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 e8g8 e2e3 c7c5 d4c5 e7c5 rnbq1rk1/pp3ppp/4pn2/2bp4/2P2B2/2N1PN2/PP3PPP/R2QKB1R w KQ - +D37 Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 O-O 6. e3 c6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 f8e7 c1f4 e8g8 e2e3 c7c6 rnbq1rk1/pp2bppp/2p1pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - +D37 Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 e8g8 e2e3 b8d7 r1bq1rk1/pppnbppp/4pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - +D37 Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. c5 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 g1f3 f8e7 c1f4 e8g8 e2e3 b8d7 c4c5 r1bq1rk1/pppnbppp/4pn2/2Pp4/3P1B2/2N1PN2/PP3PPP/R2QKB1R b KQ - +D37 Queen's Gambit Declined: Knight Defense, Alekhine Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bg5 h6 6. Bh4 dxc4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 b8d7 c1g5 h7h6 g5h4 d5c4 r1bqkb1r/pppn1pp1/4pn1p/8/2pP3B/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D37 Queen's Gambit Declined: Miles Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 d1c2 rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N2N2/PPQ1PPPP/R3KB1R b KQ - +D37 Queen's Gambit Declined: Three Knights Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D37 Queen's Gambit Declined: Vienna Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 d5c4 rnbqkb1r/ppp2ppp/4pn2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D37 Queen's Gambit Declined: Vienna Variation, Quiet Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 d5c4 e2e3 rnbqkb1r/ppp2ppp/4pn2/8/2pP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D38 Queen's Gambit Declined: Ragozin Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8b4 rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D38 Queen's Gambit Declined: Ragozin Defense, Alekhine Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8b4 d1a4 rnbqk2r/ppp2ppp/4pn2/3p4/QbPP4/2N2N2/PP2PPPP/R1B1KB1R b KQkq - +D38 Queen's Gambit Declined: Westphalian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 Nbd7 6. e3 c5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8b4 c1g5 b8d7 e2e3 c7c5 r1bqk2r/pp1n1ppp/4pn2/2pp2B1/1bPP4/2N1PN2/PP3PPP/R2QKB1R w KQkq - +D39 Queen's Gambit Declined: Ragozin Defense, Vienna Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8b4 c1g5 d5c4 rnbqk2r/ppp2ppp/4pn2/6B1/1bpP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D40 Queen's Gambit Declined: Semi-Tarrasch Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 rnbqkb1r/pp3ppp/4pn2/2pp4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Levenfish Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. e3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. Qe2 Qe7 9. dxc5 Bxc5 10. e4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 e2e3 b8c6 f1d3 f8d6 e1g1 e8g8 d1e2 d8e7 d4c5 d6c5 e3e4 r1b2rk1/pp2qppp/2n1pn2/2bp4/2P1P3/2NB1N2/PP2QPPP/R1B2RK1 b - - +D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. Bg5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c1g5 rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Symmetrical Variation 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. e3 c5 5. d4 Nc6 6. Bd3 Bd6 7. O-O O-O c2c4 g8f6 b1c3 e7e6 g1f3 d7d5 e2e3 c7c5 d2d4 b8c6 f1d3 f8d6 e1g1 e8g8 r1bq1rk1/pp3ppp/2nbpn2/2pp4/2PP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 c4d5 rnbqkb1r/pp3ppp/4pn2/2pP4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 c4d5 f6d5 e2e4 rnbqkb1r/pp3ppp/4p3/2pn4/3PP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Kmoch Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bb5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c4d5 f6d5 e2e4 d5c3 b2c3 c5d4 c3d4 f8b4 c1d2 b4d2 d1d2 e8g8 f1b5 rnbq1rk1/pp3ppp/4p3/1B6/3PP3/5N2/P2Q1PPP/R3K2R b KQ - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 c4d5 f6d5 e2e3 rnbqkb1r/pp3ppp/4p3/2pn4/3P4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 cxd4 8. cxd4 Bb4+ 9. Bd2 Qa5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c4d5 f6d5 e2e4 d5c3 b2c3 c7c5 g1f3 c5d4 c3d4 f8b4 c1d2 d8a5 rnb1k2r/pp3ppp/4p3/q7/1b1PP3/5N2/P2B1PPP/R2QKB1R w KQkq - +D42 Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 c4d5 f6d5 e2e3 b8c6 f1d3 r1bqkb1r/pp3ppp/2n1p3/2pn4/3P4/2NBPN2/PP3PPP/R1BQK2R b KQkq - +D43 Queen's Gambit Declined: Hastings Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. Qb3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 h7h6 g5f6 d8f6 d1b3 rnb1kb1r/pp3pp1/2p1pq1p/3p4/2PP4/1QN2N2/PP2PPPP/R3KB1R b KQkq - +D43 Semi-Slav Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D43 Semi-Slav Defense: Anti-Moscow Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 h7h6 g5h4 rnbqkb1r/pp3pp1/2p1pn1p/3p4/2PP3B/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D44 Semi-Slav Defense Accepted 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 rnbqkb1r/pp3ppp/2p1pn2/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D44 Semi-Slav Defense: Botvinnik Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 e2e4 rnbqkb1r/pp3ppp/2p1pn2/6B1/2pPP3/2N2N2/PP3PPP/R2QKB1R b KQkq - +D44 Semi-Slav Defense: Botvinnik Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 rnbqkb1r/p4p2/2p1pn1p/1p2P1N1/2pP3B/2N5/PP3PPP/R2QKB1R b KQkq - +D44 Semi-Slav Defense: Botvinnik Variation, Alatortsev System 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 Nd5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 f6d5 rnbqkb1r/p4p2/2p1p2p/1p1nP1N1/2pP3B/2N5/PP3PPP/R2QKB1R w KQkq - +D44 Semi-Slav Defense: Botvinnik Variation, Ekstrom Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. exf6 gxh4 10. Ne5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 e5f6 g5h4 f3e5 rnbqkb1r/p4p2/2p1pP1p/1p2N3/2pP3p/2N5/PP3PPP/R2QKB1R b KQkq - +D44 Semi-Slav Defense: Botvinnik Variation, Lilienthal Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. g3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 h6g5 h4g5 b8d7 g2g3 r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N3P1/PP3P1P/R2QKB1R b KQkq - +D44 Semi-Slav Defense: Botvinnik Variation, Szabo Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. Qf3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 h6g5 h4g5 b8d7 d1f3 r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N2Q2/PP3PPP/R3KB1R b KQkq - +D45 Semi-Slav Defense: Accelerated Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 a7a6 rnbqkb1r/1p3ppp/p1p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - +D45 Semi-Slav Defense: Main Line 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D45 Semi-Slav Defense: Normal Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - +D45 Semi-Slav Defense: Rubinstein System 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Ne5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 g8f6 e2e3 b8d7 f3e5 r1bqkb1r/pp1n1ppp/2p1pn2/3pN3/2PP4/2N1P3/PP3PPP/R1BQKB1R b KQkq - +D45 Semi-Slav Defense: Stoltz Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 d1c2 r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2N1PN2/PPQ2PPP/R1B1KB1R b KQkq - +D45 Semi-Slav Defense: Stoltz Variation, Center Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 d1c2 f8d6 e3e4 r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PPP3/2N2N2/PPQ2PPP/R1B1KB1R b KQkq - +D45 Semi-Slav Defense: Stoltz Variation, Center Variation, Mikhalchishin Line 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 e5 10. dxe5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 d1c2 f8d6 e3e4 d5e4 c3e4 f6e4 c2e4 e6e5 d4e5 r1bqk2r/pp1n1ppp/2pb4/4P3/2P1Q3/5N2/PP3PPP/R1B1KB1R b KQkq - +D45 Semi-Slav Defense: Stoltz Variation, Shabalov Attack 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 d1c2 f8d6 g2g4 r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP2P1/2N1PN2/PPQ2P1P/R1B1KB1R b KQkq - +D45 Semi-Slav Defense: Stonewall Defense 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Ne4 6. Bd3 f5 d2d4 d7d5 g1f3 g8f6 c2c4 c7c6 b1c3 e7e6 e2e3 f6e4 f1d3 f7f5 rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D46 Semi-Slav Defense: Bogoljubov Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Be7 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 f8e7 r1bqk2r/pp1nbppp/2p1pn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D46 Semi-Slav Defense: Chigorin Defense 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bd6 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 f8d6 r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D46 Semi-Slav Defense: Main Line 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQkq - +D46 Semi-Slav Defense: Romih Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bb4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 f8b4 r1bqk2r/pp1n1ppp/2p1pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 r1bqkb1r/p2n1ppp/2p1pn2/1p6/2BP4/2N1PN2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Meran Variation, Lundin Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 b4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 b5b4 r1bqkb1r/p2n1ppp/2p1pn2/8/1p1P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Meran Variation, Wade Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 c8b7 r2qkb1r/pb1n1ppp/2p1pn2/1p6/3P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Meran Variation, Wade Variation, Kaidanov Gambit 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12. O-O cxd4 13. Nxd4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 c8b7 e3e4 b5b4 c3a4 c6c5 e4e5 f6d5 e1g1 c5d4 f3d4 r2qkb1r/pb1n1ppp/4p3/3nP3/Np1N4/3B4/PP3PPP/R1BQ1RK1 b kq - +D47 Semi-Slav Defense: Meran Variation, Wade Variation, Larsen Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 c8b7 e3e4 b5b4 c3a4 c6c5 e4e5 f6d5 r2qkb1r/pb1n1ppp/4p3/2pnP3/Np1P4/3B1N2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Semi-Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 r1bqkb1r/pp1n1ppp/2p1pn2/8/2BP4/2N1PN2/PP3PPP/R1BQK2R b KQkq - +D48 Semi-Slav Defense: Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 r1bqkb1r/3n1ppp/p1p1pn2/1p6/3P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D48 Semi-Slav Defense: Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 r1bqkb1r/3n1ppp/p3pn2/1pp5/3PP3/2NB1N2/PP3PPP/R1BQK2R w KQkq - +D48 Semi-Slav Defense: Meran Variation, Old Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 r1bqkb1r/3n1ppp/p3pn2/1pp1P3/3P4/2NB1N2/PP3PPP/R1BQK2R b KQkq - +D48 Semi-Slav Defense: Meran Variation, Pirc Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e3 g8f6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 b5b4 r1bqkb1r/3n1ppp/p1p1pn2/8/1p1PP3/2NB1N2/PP3PPP/R1BQK2R w KQkq - +D48 Semi-Slav Defense: Meran Variation, Reynolds' Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 d4d5 r1bqkb1r/3n1ppp/p3pn2/1ppP4/4P3/2NB1N2/PP3PPP/R1BQK2R b KQkq - +D49 Semi-Slav Defense: Meran Variation, Blumenfeld Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 r1bqkb1r/3n1ppp/p3pn2/1N2P3/3p4/3B1N2/PP3PPP/R1BQK2R b KQkq - +D49 Semi-Slav Defense: Meran Variation, Rabinovich Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Ng4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 f6g4 r1bqkb1r/3n1ppp/p3p3/1N2P3/3p2n1/3B1N2/PP3PPP/R1BQK2R w KQkq - +D49 Semi-Slav Defense: Meran Variation, Rellstab Attack 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O Qd5 14. Qe2 Ba6 15. Bg5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 g1f3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 e1g1 d8d5 d1e2 c8a6 c1g5 r3kb1r/5ppp/b3pn2/1p1qN1B1/3p4/3B4/PP2QPPP/R4RK1 b kq - +D49 Semi-Slav Defense: Meran Variation, Sozin Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 r1bqkb1r/5ppp/p3pn2/1N2n3/3p4/3B1N2/PP3PPP/R1BQK2R w KQkq - +D49 Semi-Slav Defense: Meran Variation, Sozin Variation 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O d2d4 d7d5 g1f3 g8f6 c2c4 c7c6 b1c3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 e1g1 r1bqkb1r/5ppp/4pn2/1p2N3/3p4/3B4/PP3PPP/R1BQ1RK1 b kq - +D49 Semi-Slav Defense: Meran Variation, Stahlberg Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. Qf3 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 d1f3 r1bqkb1r/5ppp/4pn2/1p2N3/3p4/3B1Q2/PP3PPP/R1B1K2R b KQkq - +D50 Queen's Gambit Declined: Been-Koomen Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - +D50 Queen's Gambit Declined: Modern Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - +D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. cxd5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 c4d5 rnbqkb1r/pp3ppp/4pn2/2pP2B1/3P4/2N5/PP2PPPP/R2QKBNR b KQkq - +D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation, Canal Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. cxd5 Qb6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 c4d5 d8b6 rnb1kb1r/pp3ppp/1q2pn2/2pP2B1/3P4/2N5/PP2PPPP/R2QKBNR w KQkq - +D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation, Primitive Pillsbury Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. Nf3 cxd4 6. Qxd4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 g1f3 c5d4 d1d4 rnbqkb1r/pp3ppp/4pn2/3p2B1/2PQ4/2N2N2/PP2PPPP/R3KB1R b KQkq - +D50 Queen's Gambit Declined: Semi-Tarrasch Defense, Krause Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. Nf3 cxd4 6. Nxd4 e5 7. Ndb5 a6 8. Qa4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 g1f3 c5d4 f3d4 e6e5 d4b5 a7a6 d1a4 rnbqkb1r/1p3ppp/p4n2/1N1pp1B1/Q1P5/2N5/PP2PPPP/R3KB1R b KQkq - +D51 Queen's Gambit Declined: Alekhine Variation 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. e4 c2c4 e7e6 b1c3 d7d5 d2d4 g8f6 c1g5 b8d7 g1f3 c7c6 e2e4 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PPP3/2N2N2/PP3PPP/R2QKB1R b KQkq - +D51 Queen's Gambit Declined: Capablanca Variation, Anti-Cambridge Springs Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. a3 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 a2a3 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/P1N1P3/1P3PPP/R2QKBNR b KQkq - +D51 Queen's Gambit Declined: Manhattan Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Bb4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 f8b4 r1bqk2r/pppn1ppp/4pn2/3p2B1/1bPP4/2N1P3/PP3PPP/R2QKBNR w KQkq - +D51 Queen's Gambit Declined: Modern Variation, Knight Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 r1bqkb1r/pppn1ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - +D51 Queen's Gambit Declined: Modern Variation, Knight Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 r1bqkb1r/pppn1ppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR b KQkq - +D51 Queen's Gambit Declined: Modern Variation, Knight Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR w KQkq - +D51 Queen's Gambit Declined: Rochlin Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. Rc1 Qa5 7. Bd2 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 g1f3 c7c6 a1c1 d8a5 g5d2 r1b1kb1r/pp1n1ppp/2p1pn2/q2p4/2PP4/2N2N2/PP1BPPPP/2RQKB1R b Kkq - +D52 Queen's Gambit Declined 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 r1b1kb1r/pp1n1ppp/2p1pn2/q2p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 c4d5 r1b1kb1r/pp1n1ppp/2p1pn2/q2P2B1/3P4/2N1PN2/PP3PPP/R2QKB1R b KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Argentine Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Bh4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 f3d2 f8b4 d1c2 e8g8 g5h4 r1b2rk1/pp1n1ppp/2p1pn2/q2p4/1bPP3B/2N1P3/PPQN1PPP/R3KB1R b KQ - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Bogoljubov Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 f3d2 f8b4 d1c2 r1b1k2r/pp1n1ppp/2p1pn2/q2p2B1/1bPP4/2N1P3/PPQN1PPP/R3KB1R b KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Capablanca Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Bxf6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 g5f6 r1b1kb1r/pp1n1ppp/2p1pB2/q2p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Rubinstein Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 dxc4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 f3d2 d5c4 r1b1kb1r/pp1n1ppp/2p1pn2/q5B1/2pP4/2N1P3/PP1N1PPP/R2QKB1R w KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Yugoslav Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 c4d5 f6d5 r1b1kb1r/pp1n1ppp/2p1p3/q2n2B1/3P4/2N1PN2/PP3PPP/R2QKB1R w KQkq - +D53 Queen's Gambit Declined 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 rnbqk2r/ppp1bppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - +D53 Queen's Gambit Declined: Lasker Defense 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 Ne4 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c1g5 f8e7 e2e3 f6e4 rnbqk2r/ppp1bppp/4p3/3p2B1/2PPn3/2N1P3/PP3PPP/R2QKBNR w KQkq - +D53 Queen's Gambit Declined: Modern Variation, Heral Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 g5f6 rnbqk2r/ppp1bppp/4pB2/3p4/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - +D54 Queen's Gambit Declined: Neo-Orthodox Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Rc1 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c1g5 f8e7 e2e3 e8g8 a1c1 rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/2RQKBNR b K - +D55 Queen's Gambit Declined: Anti-Tartakower Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bxf6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 h7h6 g5f6 rnbq1rk1/ppp1bpp1/4pB1p/3p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ - +D55 Queen's Gambit Declined: Anti-Tartakower Variation, Petrosian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 h7h6 g5f6 e7f6 e2e3 e8g8 a1c1 c7c6 f1d3 b8d7 e1g1 d5c4 d3c4 r1bq1rk1/pp1n1pp1/2p1pb1p/8/2BP4/2N1PN2/PP3PPP/2RQ1RK1 b - - +D55 Queen's Gambit Declined: Modern Variation, Normal Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ - +D55 Queen's Gambit Declined: Neo-Orthodox Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 h7h6 rnbq1rk1/ppp1bpp1/4pn1p/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ - +D55 Queen's Gambit Declined: Neo-Orthodox Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 h7h6 g5h4 e8g8 e2e3 rnbq1rk1/ppp1bpp1/4pn1p/3p4/2PP3B/2N1PN2/PP3PPP/R2QKB1R b KQ - +D55 Queen's Gambit Declined: Pillsbury Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 d5 5. cxd5 exd5 6. Bg5 Be7 7. e3 O-O 8. Bd3 Bb7 9. Ne5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 d7d5 c4d5 e6d5 c1g5 f8e7 e2e3 e8g8 f1d3 c8b7 f3e5 rn1q1rk1/pbp1bppp/1p3n2/3pN1B1/3P4/2NBP3/PP3PPP/R2QK2R b KQ - +D56 Queen's Gambit Declined: Lasker Defense 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 f6e4 rnbq1rk1/ppp1bpp1/4p2p/3p4/2PPn2B/2N1PN2/PP3PPP/R2QKB1R w KQ - +D56 Queen's Gambit Declined: Lasker Defense, Russian Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 Nf6 10. Bd3 dxc4 11. Bxc4 c5 12. O-O Nc6 13. Rfd1 Bd7 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4 h4e7 d8e7 d1c2 e4f6 f1d3 d5c4 d3c4 c7c5 e1g1 b8c6 f1d1 c8d7 r4rk1/pp1bqpp1/2n1pn1p/2p5/2BP4/2N1PN2/PPQ2PPP/R2R2K1 w - - +D56 Queen's Gambit Declined: Lasker Defense, Teichmann Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 h7h6 g5h4 e8g8 e2e3 f6e4 h4e7 d8e7 d1c2 rnb2rk1/ppp1qpp1/4p2p/3p4/2PPn3/2N1PN2/PPQ2PPP/R3KB1R b KQ - +D57 Queen's Gambit Declined: Lasker Defense, Bernstein Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Qd6 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c1g5 f8e7 e2e3 h7h6 g5h4 e8g8 g1f3 f6e4 h4e7 d8e7 c4d5 e4c3 b2c3 e6d5 d1b3 e7d6 rnb2rk1/ppp2pp1/3q3p/3p4/3P4/1QP1PN2/P4PPP/R3KB1R w KQ - +D57 Queen's Gambit Declined: Lasker Defense, Bernstein Variation, Mar del Plata Gambit 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Rd8 12. c4 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4 h4e7 d8e7 c4d5 e4c3 b2c3 e6d5 d1b3 f8d8 c3c4 c8e6 rn1r2k1/ppp1qpp1/4b2p/3p4/2PP4/1Q2PN2/P4PPP/R3KB1R w KQ - +D57 Queen's Gambit Declined: Lasker Defense, Main Line 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 f6e4 h4e7 d8e7 c4d5 e4c3 b2c3 rnb2rk1/ppp1qpp1/4p2p/3P4/3P4/2P1PN2/P4PPP/R2QKB1R b KQ - +D58 Queen's Gambit Declined: Tartakower Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 h7h6 g5h4 e8g8 e2e3 b7b6 rnbq1rk1/p1p1bpp1/1p2pn1p/3p4/2PP3B/2N1PN2/PP3PPP/R2QKB1R w KQ - +D58 Queen's Gambit Declined: Tartakower Defense, Exchange Variation 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 exd5 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 b7b6 c4d5 e6d5 rnbq1rk1/p1p1bpp1/1p3n1p/3p4/3P3B/2N1PN2/PP3PPP/R2QKB1R w KQ - +D59 Queen's Gambit Declined: Tartakower Defense 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Rc1 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 b7b6 c4d5 f6d5 h4e7 d8e7 c3d5 e6d5 a1c1 c8e6 rn3rk1/p1p1qpp1/1p2b2p/3p4/3P4/4PN2/PP3PPP/2RQKB1R w K - +D59 Queen's Gambit Declined: Tartakower Defense, Makogonov Exchange Variation 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd5 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 b7b6 c4d5 f6d5 rnbq1rk1/p1p1bpp1/1p2p2p/3n4/3P3B/2N1PN2/PP3PPP/R2QKB1R w KQ - +D60 Queen's Gambit Declined: Orthodox Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ - +D60 Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Bd3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 f1d3 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2NBPN2/PP3PPP/R2QK2R b KQ - +D60 Queen's Gambit Declined: Orthodox Defense, Rauzer Variation 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qb3 d2d4 d7d5 g1f3 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 d1b3 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/1QN1PN2/PP3PPP/R3KB1R b KQ - +D61 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 d1c2 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/R3KB1R b KQ - +D62 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation, Flohr Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 c5 8. cxd5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 d1c2 c7c5 c4d5 r1bq1rk1/pp1nbppp/4pn2/2pP2B1/3P4/2N1PN2/PPQ2PPP/R3KB1R b KQ - +D63 Queen's Gambit Declined: Orthodox Defense, Capablanca Variation 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bb5 g1f3 d7d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 b7b6 c4d5 e6d5 f1b5 r1bq1rk1/p1pnbppp/1p3n2/1B1p2B1/3P4/2N1PN2/PP3PPP/2RQK2R b K - +D63 Queen's Gambit Declined: Orthodox Defense, Henneberger Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 a7a6 r1bq1rk1/1ppnbppp/p3pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K - +D63 Queen's Gambit Declined: Orthodox Defense, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R b K - +D63 Queen's Gambit Declined: Orthodox Defense, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K - +D63 Queen's Gambit Declined: Orthodox Defense, Pillsbury Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bd3 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 b7b6 c4d5 e6d5 f1d3 r1bq1rk1/p1pnbppp/1p3n2/3p2B1/3P4/2NBPN2/PP3PPP/2RQK2R b K - +D63 Queen's Gambit Declined: Orthodox Defense, Swiss, Karlsbad Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. cxd5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 a7a6 c4d5 r1bq1rk1/1ppnbppp/p3pn2/3P2B1/3P4/2N1PN2/PP3PPP/2RQKB1R b K - +D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. a3 a6 9. Qc2 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 g1f3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 a2a3 a7a6 d1c2 r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/P1N1PN2/1PQ2PPP/2R1KB1R b K - +D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 d1c2 r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/2R1KB1R b K - +D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 a6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 d1c2 a7a6 r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/2R1KB1R w K - +D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 Ne4 g1f3 d7d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 d1c2 f6e4 r1bq1rk1/pp1nbppp/2p1p3/3p2B1/2PPn3/2N1PN2/PPQ2PPP/2R1KB1R w K - +D65 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 a6 9. cxd5 d2d4 d7d5 g1f3 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 d1c2 a7a6 c4d5 r1bq1rk1/1p1nbppp/p1p1pn2/3P2B1/3P4/2N1PN2/PPQ2PPP/2R1KB1R b K - +D66 Queen's Gambit Declined: Orthodox Defense, Bd3 Line 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2NBPN2/PP3PPP/2RQK2R b K - +D66 Queen's Gambit Declined: Orthodox Defense, Fianchetto Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. Nf3 Be7 6. e3 Nbd7 7. Rc1 O-O 8. Bd3 dxc4 9. Bxc4 b5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c6 g1f3 f8e7 e2e3 b8d7 a1c1 e8g8 f1d3 d5c4 d3c4 b7b5 r1bq1rk1/p2nbppp/2p1pn2/1p4B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K - +D67 Queen's Gambit Declined: Orthodox Defense, Alekhine Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. Ne4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 c3e4 r1b2rk1/pp1nqppp/2p1p3/3n4/2BPN3/4PN2/PP3PPP/2RQK2R b K - +D67 Queen's Gambit Declined: Orthodox Defense, Bd3 Line 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 r1b2rk1/pp1nqppp/2p1p3/3n4/2BP4/2N1PN2/PP3PPP/2RQK2R w K - +D67 Queen's Gambit Declined: Orthodox Defense, Capablanca System 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K - +D67 Queen's Gambit Declined: Orthodox Defense, Janowski Variation 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. h4 d2d4 d7d5 g1f3 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 h2h4 r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP3P/2N1PN2/PP3PP1/2RQK2R b K - +D67 Queen's Gambit Declined: Orthodox Defense, Main Line 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 r1b2rk1/pp1nqppp/2p1p3/3n4/2BP4/2N1PN2/PP3PPP/2RQ1RK1 b - - +D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PP3PPP/3Q1RK1 w - - +D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. Qb1 d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d1b1 r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PP3PPP/1Q3RK1 b - - +D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d1c2 r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PPQ2PPP/5RK1 b - - +D69 Queen's Gambit Declined: Orthodox Defense, Classical Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d4e5 d7e5 f3e5 e7e5 r1b2rk1/pp3ppp/2p5/4q3/2B5/2R1P3/PP3PPP/3Q1RK1 w - - +D70 Neo-Grünfeld Defense 1. d4 Nf6 2. c4 g6 3. g3 d5 d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - +D70 Neo-Grünfeld Defense: Goglidze Attack 1. d4 Nf6 2. c4 g6 3. f3 d5 d2d4 g8f6 c2c4 g7g6 f2f3 d7d5 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/5P2/PP2P1PP/RNBQKBNR w KQkq - +D71 Neo-Grünfeld Defense: Exchange Variation 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 d7d5 c4d5 f6d5 rnbqk2r/ppp1ppbp/6p1/3n4/3P4/6P1/PP2PPBP/RNBQK1NR w KQkq - +D74 Neo-Grünfeld Defense: Delayed Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d5 c4d5 f6d5 e1g1 rnbq1rk1/ppp1ppbp/6p1/3n4/3P4/5NP1/PP2PPBP/RNBQ1RK1 b - - +D75 Neo-Grünfeld Defense: Delayed Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 e8g8 g2g3 d7d5 c4d5 f6d5 f1g2 c7c5 e1g1 rnbq1rk1/pp2ppbp/6p1/2pn4/3P4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +D75 Neo-Grünfeld Defense: Delayed Exchange Variation 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O c5 8. dxc5 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 g2g3 e8g8 f1g2 d7d5 c4d5 f6d5 e1g1 c7c5 d4c5 rnbq1rk1/pp2ppbp/6p1/2Pn4/8/5NP1/PP2PPBP/RNBQ1RK1 b - - +D76 Neo-Grünfeld Defense: Delayed Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Nb6 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d5 c4d5 f6d5 e1g1 d5b6 rnbq1rk1/ppp1ppbp/1n4p1/8/3P4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D77 Neo-Grünfeld Defense: Classical Variation 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d5 c2c4 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 b - - +D77 Neo-Grünfeld Defense: Classical Variation, Modern Defense 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d5 c2c4 d5c4 rnbq1rk1/ppp1ppbp/5np1/8/2pP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D77 Neo-Grünfeld Defense: Classical Variation, Polgar Variation 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 Nc6 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d5 c2c4 b8c6 r1bq1rk1/ppp1ppbp/2n2np1/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D78 Neo-Grünfeld Defense: Classical Variation, Original Defense 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 c7c6 e1g1 d7d5 rnbq1rk1/pp2ppbp/2p2np1/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D79 Neo-Grünfeld Defense: Ultra-delayed Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. cxd5 cxd5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 c7c6 e1g1 d7d5 c4d5 c6d5 rnbq1rk1/pp2ppbp/5np1/3p4/3P4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D80 Grünfeld Defense 1. d4 Nf6 2. c4 g6 3. Nc3 d5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D80 Grünfeld Defense: Gibbon Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. g4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g2g4 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP2P1/2N5/PP2PP1P/R1BQKBNR b KQkq - +D80 Grünfeld Defense: Lundin Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Nxe4 dxe4 6. Qd2 c5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1g5 f6e4 c3e4 d5e4 d1d2 c7c5 rnbqkb1r/pp2pp1p/6p1/2p3B1/2PPp3/8/PP1QPPPP/R3KBNR w KQkq - +D80 Grünfeld Defense: Lutikov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. f3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 f2f3 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq - +D80 Grünfeld Defense: Lutikov Variation, Murrey Attack 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. f3 c5 5. cxd5 Nxd5 6. Na4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 f2f3 c7c5 c4d5 f6d5 c3a4 rnbqkb1r/pp2pp1p/6p1/2pn4/N2P4/5P2/PP2P1PP/R1BQKBNR b KQkq - +D80 Grünfeld Defense: Stockholm Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1g5 rnbqkb1r/ppp1pp1p/5np1/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - +D80 Grünfeld Defense: Zaitsev Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. h4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 h2h4 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP3P/2N5/PP2PPP1/R1BQKBNR b KQkq - +D81 Grünfeld Defense: Russian Variation, Accelerated Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 d1b3 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/1QN5/PP2PPPP/R1B1KBNR b KQkq - +D82 Grünfeld Defense: Brinckmann Attack 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP1B2/2N5/PP2PPPP/R2QKBNR b KQkq - +D83 Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1P3/PP3PPP/R2QKBNR w KQ - +D83 Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit, Botvinnik Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 c5 7. dxc5 Be6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 a1c1 c7c5 d4c5 c8e6 rn1q1rk1/pp2ppbp/4bnp1/2Pp4/2P2B2/2N1P3/PP3PPP/2RQKBNR w K - +D83 Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit, Capablanca Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 a1c1 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1P3/PP3PPP/2RQKBNR b K - +D83 Grünfeld Defense: Brinckmann Attack, Reshevsky Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Rc1 O-O 6. e3 c5 7. dxc5 Qa5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 a1c1 e8g8 e2e3 c7c5 d4c5 d8a5 rnb2rk1/pp2ppbp/5np1/q1Pp4/2P2B2/2N1P3/PP3PPP/2RQKBNR w K - +D84 Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit Accepted 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc7 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 c4d5 f6d5 c3d5 d8d5 f4c7 rnb2rk1/ppB1ppbp/6p1/3q4/3P4/4P3/PP3PPP/R2QKBNR b KQ - +D85 Grünfeld Defense: Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 rnbqkb1r/ppp1pp1p/6p1/3n4/3P4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D85 Grünfeld Defense: Exchange Variation, Modern Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 g1f3 rnbqk2r/ppp1ppbp/6p1/8/3PP3/2P2N2/P4PPP/R1BQKB1R b KQkq - +D85 Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Kramnik's Line 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. h3 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 c7c5 h2h3 rnbqk2r/pp2ppbp/6p1/2p5/3PP3/2P2N1P/P4PP1/R1BQKB1R b KQkq - +D85 Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Pawn Grab Line 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 O-O 9. Be2 Nc6 10. d5 Bxc3+ d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 g1f3 c7c5 a1b1 e8g8 f1e2 b8c6 d4d5 g7c3 r1bq1rk1/pp2pp1p/2n3p1/2pP4/4P3/2b2N2/P3BPPP/1RBQK2R w K - +D85 Grünfeld Defense: Exchange Variation, Nadanian Attack 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Na4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 c3a4 rnbqkb1r/ppp1pp1p/6p1/3n4/N2P4/8/PP2PPPP/R1BQKBNR b KQkq - +D86 Grünfeld Defense: Exchange Variation, Classical Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 rnbqk2r/ppp1ppbp/6p1/8/2BPP3/2P5/P4PPP/R1BQK1NR b KQkq - +D86 Grünfeld Defense: Exchange Variation, Larsen Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Qd7 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 d8d7 rnb2rk1/pppqppbp/6p1/8/2BPP3/2P5/P3NPPP/R1BQK2R w KQ - +D86 Grünfeld Defense: Exchange Variation, Larsen Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Qd7 9. O-O b6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 d8d7 e1g1 b7b6 rnb2rk1/p1pqppbp/1p4p1/8/2BPP3/2P5/P3NPPP/R1BQ1RK1 w - - +D86 Grünfeld Defense: Exchange Variation, Simagin's Improved Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 b8c6 r1bq1rk1/ppp1ppbp/2n3p1/8/2BPP3/2P5/P3NPPP/R1BQK2R w KQ - +D86 Grünfeld Defense: Exchange Variation, Simagin's Lesser Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 b7b6 rnbq1rk1/p1p1ppbp/1p4p1/8/2BPP3/2P5/P3NPPP/R1BQK2R w KQ - +D87 Grünfeld Defense: Exchange Variation, Seville Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Bg4 11. f3 Na5 12. Bxf7+ d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 b8c6 c1e3 e8g8 e1g1 c8g4 f2f3 c6a5 c4f7 r2q1rk1/pp2pBbp/6p1/n1p5/3PP1b1/2P1BP2/P3N1PP/R2Q1RK1 b - - +D87 Grünfeld Defense: Exchange Variation, Spassky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 e8g8 rnbq1rk1/pp2ppbp/6p1/2p5/2BPP3/2P5/P3NPPP/R1BQK2R w KQ - +D88 Grünfeld Defense: Exchange Variation, Spassky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O cxd4 11. cxd4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 b8c6 c1e3 e8g8 e1g1 c5d4 c3d4 r1bq1rk1/pp2ppbp/2n3p1/8/2BPP3/4B3/P3NPPP/R2Q1RK1 b - - +D89 Grünfeld Defense: Exchange Variation, Sokolsky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O 9. O-O Nc6 10. Be3 Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 14. d5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 e8g8 e1g1 b8c6 c1e3 c8g4 f2f3 c6a5 c4d3 c5d4 c3d4 g4e6 d4d5 r2q1rk1/pp2ppbp/4b1p1/n2P4/4P3/3BBP2/P3N1PP/R2Q1RK1 b - - +D89 Grünfeld Defense: Exchange Variation, Spassky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 b8c6 c1e3 e8g8 e1g1 c8g4 f2f3 c6a5 c4d3 c5d4 c3d4 g4e6 r2q1rk1/pp2ppbp/4b1p1/n7/3PP3/3BBP2/P3N1PP/R2Q1RK1 w - - +D90 Grünfeld Defense: Flohr Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1a4 rnbqk2r/ppp1ppbp/5np1/3p4/Q1PP4/2N2N2/PP2PPPP/R1B1KB1R b KQkq - +D90 Grünfeld Defense: Three Knights Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D90 Grünfeld Defense: Three Knights Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D91 Grünfeld Defense: Three Knights Variation, Petrosian System 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1g5 rnbqk2r/ppp1ppbp/5np1/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D92 Grünfeld Defense: Three Knights Variation, Hungarian Attack 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1f4 rnbqk2r/ppp1ppbp/5np1/3p4/2PP1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D93 Grünfeld Defense: Three Knights Variation, Hungarian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1f4 e8g8 e2e3 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R b KQ - +D94 Grünfeld Defense: Flohr Defense 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Bd3 O-O 7. O-O Bf5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 g7g6 g1f3 f8g7 f1d3 e8g8 e1g1 c8f5 rn1q1rk1/pp2ppbp/2p2np1/3p1b2/2PP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +D94 Grünfeld Defense: Makogonov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. b4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 b2b4 rnbq1rk1/ppp1ppbp/5np1/3p4/1PPP4/2N1PN2/P4PPP/R1BQKB1R b KQ - +D94 Grünfeld Defense: Opocensky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd2 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 c1d2 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/2N1PN2/PP1B1PPP/R2QKB1R b KQ - +D94 Grünfeld Defense: Smyslov Defense 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Bd3 O-O 7. O-O Bg4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 g7g6 g1f3 f8g7 f1d3 e8g8 e1g1 c8g4 rn1q1rk1/pp2ppbp/2p2np1/3p4/2PP2b1/2NBPN2/PP3PPP/R1BQ1RK1 w - - +D94 Grünfeld Defense: Three Knights Variation, Burille Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D94 Grünfeld Defense: Three Knights Variation, Paris Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 f1d3 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQ - +D95 Grünfeld Defense: Botvinnik Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3 e6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 d1b3 e7e6 rnbq1rk1/ppp2pbp/4pnp1/3p4/2PP4/1QN1PN2/PP3PPP/R1B1KB1R w KQ - +D95 Grünfeld Defense: Pachman Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Qb3 dxc4 6. Bxc4 O-O 7. Nf3 Nbd7 8. Ng5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 e2e3 f8g7 d1b3 d5c4 f1c4 e8g8 g1f3 b8d7 f3g5 r1bq1rk1/pppnppbp/5np1/6N1/2BP4/1QN1P3/PP3PPP/R1B1K2R b KQ - +D95 Grünfeld Defense: Three Knights Variation, Vienna Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 d1b3 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/1QN1PN2/PP3PPP/R1B1KB1R b KQ - +D96 Grünfeld Defense: Russian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/1QN2N2/PP2PPPP/R1B1KB1R b KQkq - +D97 Grünfeld Defense: Russian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 rnbq1rk1/ppp1ppbp/5np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R b KQ - +D97 Grünfeld Defense: Russian Variation, Byrne Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b8c6 r1bq1rk1/ppp1ppbp/2n2np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D97 Grünfeld Defense: Russian Variation, Hungarian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 a6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 a7a6 rnbq1rk1/1pp1ppbp/p4np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D97 Grünfeld Defense: Russian Variation, Levenfish Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 b6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b7b6 rnbq1rk1/p1p1ppbp/1p3np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D97 Grünfeld Defense: Russian Variation, Prins Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Na6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b8a6 r1bq1rk1/ppp1ppbp/n4np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D97 Grünfeld Defense: Russian Variation, Szabo Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c7c6 rnbq1rk1/pp2ppbp/2p2np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D98 Grünfeld Defense: Russian Variation, Keres Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Be2 Nb6 10. Qd3 Nc6 11. O-O-O d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 f1e2 d7b6 c4d3 b8c6 e1c1 r2q1rk1/ppp1ppbp/1nn3p1/8/3PP1b1/2NQBN2/PP2BPPP/2KR3R b - - +D98 Grünfeld Defense: Russian Variation, Smyslov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 rn1q1rk1/ppp1ppbp/5np1/8/2QPP1b1/2N2N2/PP3PPP/R1B1KB1R w KQ - +D99 Grünfeld Defense: Russian Variation, Smyslov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 c4b3 rn1q1rk1/pppnppbp/6p1/8/3PP1b1/1QN1BN2/PP3PPP/R3KB1R b KQ - +D99 Grünfeld Defense: Russian Variation, Yugoslav Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3 c5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 c4b3 c7c5 rn1q1rk1/pp1nppbp/6p1/2p5/3PP1b1/1QN1BN2/PP3PPP/R3KB1R w KQ - +E00 Catalan Opening 1. d4 Nf6 2. c4 e6 3. g3 d2d4 g8f6 c2c4 e7e6 g2g3 rnbqkb1r/pppp1ppp/4pn2/8/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq - +E00 Catalan Opening 1. d4 Nf6 2. c4 e6 3. g3 d5 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - +E00 Catalan Opening: Hungarian Gambit 1. d4 Nf6 2. c4 e6 3. g3 e5 d2d4 g8f6 c2c4 e7e6 g2g3 e6e5 rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - +E00 Indian Defense 1. d4 Nf6 2. c4 e6 3. Qb3 d2d4 g8f6 c2c4 e7e6 d1b3 rnbqkb1r/pppp1ppp/4pn2/8/2PP4/1Q6/PP2PPPP/RNB1KBNR b KQkq - +E00 Indian Defense: Devin Gambit 1. d4 Nf6 2. c4 e6 3. g4 d2d4 g8f6 c2c4 e7e6 g2g4 rnbqkb1r/pppp1ppp/4pn2/8/2PP2P1/8/PP2PP1P/RNBQKBNR b KQkq - +E00 Indian Defense: Seirawan Attack 1. d4 Nf6 2. c4 e6 3. Bg5 d2d4 g8f6 c2c4 e7e6 c1g5 rnbqkb1r/pppp1ppp/4pn2/6B1/2PP4/8/PP2PPPP/RN1QKBNR b KQkq - +E01 Catalan Opening: Closed 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq - +E01 Catalan Opening: Open Defense, Tarrasch Defense 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c5 5. Nf3 Nc6 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 c7c5 g1f3 b8c6 r1bqkb1r/pp3ppp/2n1pn2/2pp4/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E02 Catalan Opening: Open Defense 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 rnbqkb1r/ppp2ppp/4pn2/8/Q1pP4/6P1/PP2PPBP/RNB1K1NR b KQkq - +E03 Catalan Opening: Open Defense 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 b8d7 a4c4 r1bqkb1r/pppn1ppp/4pn2/8/2QP4/6P1/PP2PPBP/RNB1K1NR b KQkq - +E03 Catalan Opening: Open Defense, Alekhine Variation 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 b8d7 a4c4 a7a6 c4c2 r1bqkb1r/1ppn1ppp/p3pn2/8/3P4/6P1/PPQ1PPBP/RNB1K1NR b KQkq - +E04 Catalan Opening: Open Defense 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 g1f3 rnbqkb1r/ppp2ppp/4pn2/8/2pP4/5NP1/PP2PPBP/RNBQK2R b KQkq - +E04 Catalan Opening: Open Defense, Modern Sharp Variation 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 g1f3 b8c6 d1a4 f8b4 r1bqk2r/ppp2ppp/2n1pn2/8/QbpP4/5NP1/PP2PPBP/RNB1K2R w KQkq - +E05 Catalan Opening: Open Defense, Classical Line 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 g1f3 f8e7 rnbqk2r/ppp1bppp/4pn2/8/2pP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E06 Catalan Opening: Closed 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 rnbqk2r/ppp1bppp/4pn2/3p4/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq - +E07 Catalan Opening: Closed 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 r1bq1rk1/pppnbppp/4pn2/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +E07 Catalan Opening: Closed, Botvinnik Variation 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. d4 O-O 6. Nc3 c6 7. O-O Nbd7 8. Qd3 c2c4 e7e6 g2g3 d7d5 f1g2 g8f6 g1f3 f8e7 d2d4 e8g8 b1c3 c7c6 e1g1 b8d7 d1d3 r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/2NQ1NP1/PP2PPBP/R1B2RK1 b - - +E08 Catalan Opening: Closed 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. b3 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b2b3 r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/1P3NP1/P1Q1PPBP/RNB2RK1 b - - +E08 Catalan Opening: Closed 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. Qc2 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 e1g1 e8g8 d2d4 b8d7 d1c2 r1bq1rk1/pppnbppp/4pn2/3p4/2PP4/5NP1/PPQ1PPBP/RNB2RK1 b - - +E08 Catalan Opening: Closed, Spassky Gambit 1. d4 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 d5 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. b3 b6 9. Rd1 Bb7 10. Nc3 b5 d2d4 g8f6 c2c4 e7e6 g2g3 f8e7 f1g2 d7d5 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b2b3 b7b6 f1d1 c8b7 b1c3 b6b5 r2q1rk1/pb1nbppp/2p1pn2/1p1p4/2PP4/1PN2NP1/P1Q1PPBP/R1BR2K1 w - - +E08 Catalan Opening: Closed, Zagoryansky Variation 1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Rd1 b6 9. a4 d2d4 e7e6 c2c4 g8f6 g1f3 d7d5 g2g3 f8e7 f1g2 e8g8 e1g1 b8d7 d1c2 c7c6 f1d1 b7b6 a2a4 r1bq1rk1/p2nbppp/1pp1pn2/3p4/P1PP4/5NP1/1PQ1PPBP/RNBR2K1 b - - +E09 Catalan Opening: Closed Variation, Rabinovich Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Nbd2 Be7 6. g3 Nbd7 7. Bg2 O-O 8. O-O b5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 d1c2 e7e6 b1d2 f8e7 g2g3 b8d7 f1g2 e8g8 e1g1 b7b5 r1bq1rk1/p2nbppp/2p1pn2/1p1p4/2PP4/5NP1/PPQNPPBP/R1B2RK1 w - - +E09 Catalan Opening: Closed Variation, Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 b6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 g2g3 f8e7 f1g2 e8g8 e1g1 b8d7 d1c2 c7c6 b1d2 b7b6 r1bq1rk1/p2nbppp/1pp1pn2/3p4/2PP4/5NP1/PPQNPPBP/R1B2RK1 w - - +E09 Catalan Opening: Closed, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 g2g3 f8e7 f1g2 e8g8 e1g1 b8d7 d1c2 c7c6 b1d2 r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/5NP1/PPQNPPBP/R1B2RK1 b - - +E09 Catalan Opening: Closed, Sokolsky Variation 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 b6 9. b3 a5 10. Bb2 Ba6 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b1d2 b7b6 b2b3 a7a5 c1b2 c8a6 r2q1rk1/3nbppp/bpp1pn2/p2p4/2PP4/1P3NP1/PBQNPPBP/R4RK1 w - - +E10 Blumenfeld Countergambit 1. d4 Nf6 2. c4 e6 3. Nf3 c5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 rnbqkb1r/pp1p1ppp/4pn2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Blumenfeld Countergambit 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 rnbqkb1r/p2p1ppp/4pn2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Blumenfeld Countergambit Accepted 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 d5e6 f7e6 c4b5 d7d5 rnbqkb1r/p5pp/4pn2/1Ppp4/8/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Blumenfeld Countergambit: Dus-Khotimirsky Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 c1g5 rnbqkb1r/p2p1ppp/4pn2/1ppP2B1/2P5/5N2/PP2PPPP/RN1QKB1R b KQkq - +E10 Blumenfeld Countergambit: Spielmann Variation 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 b5 5. Bg5 exd5 6. cxd5 h6 d2d4 g8f6 g1f3 e7e6 c2c4 c7c5 d4d5 b7b5 c1g5 e6d5 c4d5 h7h6 rnbqkb1r/p2p1pp1/5n1p/1ppP2B1/8/5N2/PP2PPPP/RN1QKB1R w KQkq - +E10 Indian Defense: Anti-Nimzo-Indian 1. d4 Nf6 2. c4 e6 3. Nf3 d2d4 g8f6 c2c4 e7e6 g1f3 rnbqkb1r/pppp1ppp/4pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +E10 Indian Defense: Dzindzi-Indian Defense 1. d4 Nf6 2. c4 e6 3. Nf3 a6 d2d4 g8f6 c2c4 e7e6 g1f3 a7a6 rnbqkb1r/1ppp1ppp/p3pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Indian Defense: Döry Indian 1. d4 Nf6 2. c4 e6 3. Nf3 Ne4 d2d4 g8f6 c2c4 e7e6 g1f3 f6e4 rnbqkb1r/pppp1ppp/4p3/8/2PPn3/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Tarrasch Defense: Symmetrical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 d5 5. Nc3 Nc6 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 e2e3 d7d5 b1c3 b8c6 r1bqkb1r/pp3ppp/2n1pn2/2pp4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - +E11 Bogo-Indian Defense 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E11 Bogo-Indian Defense: Exchange Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 b4d2 rnbqk2r/pppp1ppp/4pn2/8/2PP4/5N2/PP1bPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Grünfeld Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 b1d2 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/5N2/PP1NPPPP/R1BQKB1R b KQkq - +E11 Bogo-Indian Defense: Haiti Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Nc6 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 b8c6 r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Monticelli Trap 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4 c1d2 b4d2 d1d2 e8g8 b1c3 f6e4 d2c2 e4c3 f3g5 rn1q1rk1/pbpp1ppp/1p2p3/6N1/2PP4/2n3P1/PPQ1PPBP/R3K2R b KQ - +E11 Bogo-Indian Defense: New England Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nfd2 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 f3d2 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/8/PP1NPPPP/RNBQKB1R b KQkq - +E11 Bogo-Indian Defense: Nimzowitsch Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 d8e7 rnb1k2r/ppppqppp/4pn2/8/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Retreat Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 b4e7 rnbqk2r/ppppbppp/4pn2/8/2PP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Vitolins Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 c7c5 rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Wade-Smyslov Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 a7a5 rnbqk2r/1ppp1ppp/4pn2/p7/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E12 Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 f8b4 rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +E12 Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation, Modern Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Bg5 Bb7 6. Nd2 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 f8b4 c1g5 c8b7 f3d2 rn1qk2r/pbpp1ppp/1p2pn2/6B1/1bPP4/2N5/PP1NPPPP/R2QKB1R b KQkq - +E12 Queen's Indian Defense 1. d4 Nf6 2. c4 e6 3. Nf3 b6 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +E12 Queen's Indian Defense: Kasparov Variation, Botvinnik Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 h6 6. Bh4 g5 7. Bg3 Nh5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 c8b7 c1g5 h7h6 g5h4 g7g5 h4g3 f6h5 rn1qkb1r/pbpp1p2/1p2p2p/6pn/2PP4/2N2NB1/PP2PPPP/R2QKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Andersson Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Ne4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 f6e4 rn1qkb1r/pbpp1ppp/1p2p3/8/2PPn3/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 e6d5 rn1qkb1r/pbp2ppp/1p3n2/3p4/3P4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Hedgehog Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 g6 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 g7g6 rn1qkb1r/pbpp1p1p/1p2pnp1/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Kasparov Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 d1c2 rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N2N2/1PQ1PPPP/R1B1KB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 rn1qkb1r/pbp2ppp/1p2pn2/3p4/2PP4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Marco Defense 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 f8e7 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Modern Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Petrosian Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. e3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 e2e3 rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N1PN2/1P3PPP/R1BQKB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Polovodin Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 Nxd5 7. e4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 c8b7 a2a3 d7d5 c4d5 f6d5 e2e4 rn1qkb1r/pbp2ppp/1p2p3/3n4/3PP3/P1N2N2/1P3PPP/R1BQKB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Rashkovsky Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Qa4+ d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 d1a4 rn1qkb1r/pbp2ppp/1p2p3/3n4/Q2P4/P1N2N2/1P2PPPP/R1B1KB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Romanishin Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Bd2 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 c1d2 rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N2N2/1P1BPPPP/R2QKB1R b KQkq - +E12 Queen's Indian Defense: Miles Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bf4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 c1f4 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP1B2/5N2/PP2PPPP/RN1QKB1R b KQkq - +E12 Queen's Indian Defense: Petrosian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/P4N2/1P2PPPP/RNBQKB1R b KQkq - +E12 Queen's Indian Defense: Petrosian Variation, Farago Defense 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 Bb7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8a6 d1c2 a6b7 rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/P4N2/1PQ1PPPP/RNB1KB1R w KQkq - +E13 Queen's Indian Defense: Kasparov Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Bg5 h6 6. Bh4 Bb7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 f8b4 c1g5 h7h6 g5h4 c8b7 rn1qk2r/pbpp1pp1/1p2pn1p/8/1bPP3B/2N2N2/PP2PPPP/R2QKB1R w KQkq - +E14 Queen's Indian Defense: Averbakh Variation 1. Nf3 c5 2. b3 Nf6 3. Bb2 e6 4. e3 Be7 5. d4 O-O 6. Bd3 b6 7. O-O Bb7 8. c4 cxd4 9. Nxd4 g1f3 c7c5 b2b3 g8f6 c1b2 e7e6 e2e3 f8e7 d2d4 e8g8 f1d3 b7b6 e1g1 c8b7 c2c4 c5d4 f3d4 rn1q1rk1/pb1pbppp/1p2pn2/8/2PN4/1P1BP3/PB3PPP/RN1Q1RK1 b - - +E14 Queen's Indian Defense: Spassky System 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 e2e3 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/4PN2/PP3PPP/RNBQKB1R b KQkq - +E15 Queen's Indian Defense: Buerger Variation 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. g3 Bb7 5. Bg2 c5 6. d5 exd5 7. Ng5 g1f3 g8f6 c2c4 b7b6 d2d4 e7e6 g2g3 c8b7 f1g2 c7c5 d4d5 e6d5 f3g5 rn1qkb1r/pb1p1ppp/1p3n2/2pp2N1/2P5/6P1/PP2PPBP/RNBQK2R b KQkq - +E15 Queen's Indian Defense: Fianchetto Traditional 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Check Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 b2b3 f8b4 rn1qk2r/p1pp1ppp/bp2pn2/8/1bPP4/1P3NP1/P3PP1P/RNBQKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 b2b3 f8b4 c1d2 b4e7 rn1qk2r/p1ppbppp/bp2pn2/8/2PP4/1P3NP1/P2BPP1P/RN1QKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Check Variation, Modern Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Qe7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 b2b3 f8b4 c1d2 d8e7 rn2k2r/p1ppqppp/bp2pn2/8/1bPP4/1P3NP1/P2BPP1P/RN1QKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Nimzowitsch Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qa4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 d1a4 rn1qkb1r/p1pp1ppp/bp2pn2/8/Q1PP4/5NP1/PP2PP1P/RNB1KB1R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Quiet Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 b2b3 rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/1P3NP1/P3PP1P/RNBQKB1R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Timman's Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qb3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 d1b3 rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/1Q3NP1/PP2PP1P/RNB1KB1R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Rubinstein Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 c5 6. d5 exd5 7. Nh4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 d4d5 e6d5 f3h4 rn1qkb1r/pb1p1ppp/1p3n2/2pp4/2P4N/6P1/PP2PPBP/RNBQK2R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 c5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 rn1qkb1r/pb1p1ppp/1p2pn2/2p5/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E16 Queen's Indian Defense: Capablanca Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4 rn1qk2r/pbpp1ppp/1p2pn2/8/1bPP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E16 Queen's Indian Defense: Riumin Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4 c1d2 b4e7 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP1BPPBP/RN1QK2R w KQkq - +E16 Queen's Indian Defense: Yates Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 b6 6. Bg2 Bb7 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 a7a5 g2g3 b7b6 f1g2 c8b7 rn1qk2r/1bpp1ppp/1p2pn2/p7/1bPP4/5NP1/PP1BPPBP/RN1QK2R w KQkq - +E17 Queen's Indian Defense: Anti-Queen's Indian System 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 b1c3 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R b KQkq - +E17 Queen's Indian Defense: Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP2PPBP/RNBQ1RK1 b kq - +E17 Queen's Indian Defense: Classical Variation, Polugaevsky Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d5 exd5 8. Nh4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 d4d5 e6d5 f3h4 rn1q1rk1/pbppbppp/1p3n2/3p4/2P4N/6P1/PP2PPBP/RNBQ1RK1 b - - +E17 Queen's Indian Defense: Classical Variation, Taimanov Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d5 exd5 8. Nd4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 d4d5 e6d5 f3d4 rn1q1rk1/pbppbppp/1p3n2/3p4/2PN4/6P1/PP2PPBP/RNBQ1RK1 b - - +E17 Queen's Indian Defense: Euwe Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. b3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b2b3 rn1q1rk1/pbppbppp/1p2pn2/8/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b - - +E17 Queen's Indian Defense: Fianchetto Variation, Kramnik Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Re1 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 f1e1 rn1q1rk1/pbppbppp/1p2pn2/8/2PP4/5NP1/PP2PPBP/RNBQR1K1 b - - +E17 Queen's Indian Defense: Opocensky Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Bd2 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 b1c3 f6e4 c1d2 rn1qk2r/pbppbppp/1p2p3/8/2PPn3/2N2NP1/PP1BPPBP/R2QK2R b KQkq - +E17 Queen's Indian Defense: Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E18 Queen's Indian Defense: Classical Variation, Tiviakov Defense 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. Nc3 O-O 7. d4 Na6 g1f3 g8f6 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 b1c3 e8g8 d2d4 b8a6 r2q1rk1/pbppbppp/np2pn2/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E18 Queen's Indian Defense: Classical Variation, Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b1c3 rn1q1rk1/pbppbppp/1p2pn2/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +E18 Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b1c3 d7d5 rn1q1rk1/pbp1bppp/1p2pn2/3p4/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E19 Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b1c3 f6e4 d1c2 e4c3 c2c3 rn1q1rk1/pbppbppp/1p2p3/8/2PP4/2Q2NP1/PP2PPBP/R1B2RK1 b - - +E20 Nimzo-Indian Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +E20 Nimzo-Indian Defense: Kmoch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq - +E20 Nimzo-Indian Defense: Mikenas Attack 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qd3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1d3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2NQ4/PP2PPPP/R1B1KBNR b KQkq - +E20 Nimzo-Indian Defense: Romanishin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g2g3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq - +E21 Nimzo-Indian Defense: Romanishin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 O-O 6. Bg2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 g2g3 e8g8 f1g2 rnbq1rk1/pp1p1ppp/4pn2/2p5/1bPP4/2N2NP1/PP2PPBP/R1BQK2R b KQ - +E21 Nimzo-Indian Defense: Romanishin Variation, English Hybrid 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 cxd4 6. Nxd4 O-O 7. Bg2 d5 8. cxd5 Nxd5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 g2g3 c5d4 f3d4 e8g8 f1g2 d7d5 c4d5 f6d5 rnbq1rk1/pp3ppp/4p3/3n4/1b1N4/2N3P1/PP2PPBP/R1BQK2R w KQ - +E21 Nimzo-Indian Defense: Three Knights Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +E21 Nimzo-Indian Defense: Three Knights Variation, Euwe Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5 Ne4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 d4d5 f6e4 rnbqk2r/pp1p1ppp/4p3/2pP4/1bP1n3/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +E21 Nimzo-Indian Defense: Three Knights Variation, Korchnoi Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 d4d5 rnbqk2r/pp1p1ppp/4pn2/2pP4/1bP5/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +E21 Nimzo-Indian Defense: Three Knights Variation, Shocron Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. d5 b5 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 b1c3 c7c5 d4d5 b7b5 rnbqk2r/p2p1ppp/4pn2/1ppP4/1bP5/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +E22 Nimzo-Indian Defense: Spielmann Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/1QN5/PP2PPPP/R1B1KBNR b KQkq - +E23 Nimzo-Indian Defense: Spielmann Variation, Karlsbad Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4d2 r1bqk2r/pp1p1ppp/2n1p3/2P5/1bP5/1QN2N2/PP1nPPPP/R3KB1R w KQkq - +E23 Nimzo-Indian Defense: Spielmann Variation, Romanovsky Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 r1bqk2r/pp1p1ppp/2n1pn2/2P5/1bP5/1QN5/PP2PPPP/R1B1KBNR w KQkq - +E23 Nimzo-Indian Defense: Spielmann Variation, Stahlberg Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxc5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4c5 r1bqk2r/pp1p1ppp/2n1p3/2n5/1bP5/1QN2N2/PP1BPPPP/R3KB1R w KQkq - +E23 Nimzo-Indian Defense: Spielmann Variation, Stahlberg Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxc5 8. Qc2 f5 9. g3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4c5 b3c2 f7f5 g2g3 r1bqk2r/pp1p2pp/2n1p3/2n2p2/1bP5/2N2NP1/PPQBPP1P/R3KB1R b KQkq - +E24 Nimzo-Indian Defense: Sämisch Variation, Accelerated 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 rnbqk2r/pppp1ppp/4pn2/8/2PP4/P1P5/4PPPP/R1BQKBNR b KQkq - +E24 Nimzo-Indian Defense: Sämisch Variation, Botvinnik Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. e3 O-O 8. cxd5 Nxd5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 d7d5 a2a3 b4c3 b2c3 c7c5 e2e3 e8g8 c4d5 f6d5 rnbq1rk1/pp3ppp/4p3/2pn4/3P4/P1P1PP2/6PP/R1BQKBNR w KQ - +E25 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 d7d5 a2a3 b4c3 b2c3 c7c5 c4d5 rnbqk2r/pp3ppp/4pn2/2pP4/3P4/P1P2P2/4P1PP/R1BQKBNR b KQkq - +E25 Nimzo-Indian Defense: Sämisch Variation, Keres Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 d7d5 a2a3 b4c3 b2c3 c7c5 c4d5 f6d5 d4c5 rnbqk2r/pp3ppp/4p3/2Pn4/8/P1P2P2/4P1PP/R1BQKBNR b KQkq - +E25 Nimzo-Indian Defense: Sämisch Variation, Romanovsky Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 f5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 d7d5 a2a3 b4c3 b2c3 c7c5 c4d5 f6d5 d4c5 f7f5 rnbqk2r/pp4pp/4p3/2Pn1p2/8/P1P2P2/4P1PP/R1BQKBNR w KQkq - +E26 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 e2e3 rnbqk2r/pp1p1ppp/4pn2/2p5/2PP4/P1P1P3/5PPP/R1BQKBNR b KQkq - +E26 Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 e2e3 b7b6 rnbqk2r/p2p1ppp/1p2pn2/2p5/2PP4/P1P1P3/5PPP/R1BQKBNR w KQkq - +E27 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 e8g8 rnbq1rk1/pppp1ppp/4pn2/8/2PP4/P1P5/4PPPP/R1BQKBNR w KQ - +E28 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 a2a3 b4c3 b2c3 rnbq1rk1/pppp1ppp/4pn2/8/2PP4/P1P1P3/5PPP/R1BQKBNR b KQ - +E29 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 f1d3 b8c6 a2a3 b4c3 b2c3 e8g8 r1bq1rk1/pp1p1ppp/2n1pn2/2p5/2PP4/P1PBP3/5PPP/R1BQK1NR w KQ - +E29 Nimzo-Indian Defense: Sämisch Variation, Capablanca Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O 8. Ne2 b6 9. e4 Ne8 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 f1d3 b8c6 a2a3 b4c3 b2c3 e8g8 g1e2 b7b6 e3e4 f6e8 r1bqnrk1/p2p1ppp/1pn1p3/2p5/2PPP3/P1PB4/4NPPP/R1BQK2R w KQ - +E30 Nimzo-Indian Defense: Leningrad Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5 rnbqk2r/pppp1ppp/4pn2/6B1/1bPP4/2N5/PP2PPPP/R2QKBNR b KQkq - +E30 Nimzo-Indian Defense: Leningrad Variation, Averbakh Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 b5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5 h7h6 g5h4 c7c5 d4d5 b7b5 rnbqk2r/p2p1pp1/4pn1p/1ppP4/1bP4B/2N5/PP2PPPP/R2QKBNR w KQkq - +E31 Nimzo-Indian Defense: Leningrad Variation, Benoni Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5 h7h6 g5h4 c7c5 d4d5 d7d6 rnbqk2r/pp3pp1/3ppn1p/2pP4/1bP4B/2N5/PP2PPPP/R2QKBNR w KQkq - +E32 Nimzo-Indian Defense: Classical Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N5/PPQ1PPPP/R1B1KBNR b KQkq - +E32 Nimzo-Indian Defense: Classical Variation, Keres Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 e8g8 a2a3 b4c3 c2c3 b7b6 rnbq1rk1/p1pp1ppp/1p2pn2/8/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQ - +E32 Nimzo-Indian Defense: Classical Variation, Vitolins-Adorjan Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 e8g8 a2a3 b4c3 c2c3 b7b5 rnbq1rk1/p1pp1ppp/4pn2/1p6/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQ - +E33 Nimzo-Indian Defense: Classical Variation, Milner-Barry Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 b8c6 g1f3 d7d6 r1bqk2r/ppp2ppp/2nppn2/8/1bPP4/2N2N2/PPQ1PPPP/R1B1KB1R w KQkq - +E33 Nimzo-Indian Defense: Classical Variation, Zurich Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 b8c6 r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq - +E34 Nimzo-Indian Defense: Classical Variation, Belyavsky Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. Nf3 Qf5 7. Qd1 e5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 c4d5 d8d5 g1f3 d5f5 c2d1 e6e5 rnb1k2r/ppp2ppp/5n2/4pq2/1b1P4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +E34 Nimzo-Indian Defense: Classical Variation, Noa Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq - +E35 Nimzo-Indian Defense: Classical Variation, Noa Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 c4d5 e6d5 rnbqk2r/ppp2ppp/5n2/3p4/1b1P4/2N5/PPQ1PPPP/R1B1KBNR w KQkq - +E36 Nimzo-Indian Defense: Classical Variation, Noa Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/P1N5/1PQ1PPPP/R1B1KBNR b KQkq - +E36 Nimzo-Indian Defense: Classical Variation, Noa Variation, Botvinnik Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 b8c6 r1bqk2r/ppp2ppp/2n1pn2/3p4/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQkq - +E36 Nimzo-Indian Defense: Classical Variation, Noa Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4 rnbqk2r/ppp2ppp/4p3/3p4/2PPn3/P1Q5/1P2PPPP/R1B1KBNR w KQkq - +E37 Nimzo-Indian Defense: Classical Variation, Noa Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4 c3c2 rnbqk2r/ppp2ppp/4p3/3p4/2PPn3/P7/1PQ1PPPP/R1B1KBNR b KQkq - +E37 Nimzo-Indian Defense: Classical Variation, Noa Variation, San Remo Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 Nc6 8. e3 e5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4 c3c2 b8c6 e2e3 e6e5 r1bqk2r/ppp2ppp/2n5/3pp3/2PPn3/P3P3/1PQ2PPP/R1B1KBNR w KQkq - +E38 Nimzo-Indian Defense: Classical Variation, Berlin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq - +E38 Nimzo-Indian Defense: Classical Variation, Berlin Variation, Steiner Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc3+ d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 d4c5 b4c3 rnbqk2r/pp1p1ppp/4pn2/2P5/2P5/2b5/PPQ1PPPP/R1B1KBNR w KQkq - +E39 Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6 8. Bf4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 d4c5 e8g8 a2a3 b4c5 g1f3 b7b6 c1f4 rnbq1rk1/p2p1ppp/1p2pn2/2b5/2P2B2/P1N2N2/1PQ1PPPP/R3KB1R b KQ - +E39 Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 d4c5 e8g8 rnbq1rk1/pp1p1ppp/4pn2/2P5/1bP5/2N5/PPQ1PPPP/R1B1KBNR w KQ - +E40 Nimzo-Indian Defense: Normal Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR b KQkq - +E40 Nimzo-Indian Defense: Normal Variation, Taimanov Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b8c6 r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - +E41 Nimzo-Indian Defense: Hübner Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - +E41 Nimzo-Indian Defense: Hübner Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 f1d3 b8c6 g1f3 b4c3 b2c3 d7d6 r1bqk2r/pp3ppp/2nppn2/2p5/2PP4/2PBPN2/P4PPP/R1BQK2R w KQkq - +E41 Nimzo-Indian Defense: Normal Variation, Hübner Deferred 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1f3 e8g8 rnbq1rk1/pp1p1ppp/4pn2/2p5/1bPP4/2N1PN2/PP3PPP/R1BQKB1R w KQ - +E42 Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1e2 rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQkq - +E42 Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. a3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1e2 c5d4 e3d4 e8g8 a2a3 rnbq1rk1/pp1p1ppp/4pn2/8/1bPP4/P1N5/1P2NPPP/R1BQKB1R b KQ - +E42 Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation, Sherbakov Attack 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. c5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1e2 c5d4 e3d4 e8g8 c4c5 rnbq1rk1/pp1p1ppp/4pn2/2P5/1b1P4/2N5/PP2NPPP/R1BQKB1R b KQ - +E43 Nimzo-Indian Defense: St. Petersburg Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6 rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - +E44 Nimzo-Indian Defense: Fischer Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6 g1e2 rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQkq - +E45 Nimzo-Indian Defense: Normal Variation, Bronstein (Byrne) Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6 g1e2 c8a6 rn1qk2r/p1pp1ppp/bp2pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R w KQkq - +E46 Nimzo-Indian Defense: Normal Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQ - +E46 Nimzo-Indian Defense: Reshevsky Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1e2 rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQ - +E46 Nimzo-Indian Defense: Simagin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Bd6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1e2 d7d5 a2a3 b4d6 rnbq1rk1/ppp2ppp/3bpn2/3p4/2PP4/P1N1P3/1P2NPPP/R1BQKB1R w KQ - +E47 Nimzo-Indian Defense: Normal Variation, Bishop Attack 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2NBP3/PP3PPP/R1BQK1NR b KQ - +E48 Nimzo-Indian Defense: Normal Variation, Bishop Attack, Classical Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2NBP3/PP3PPP/R1BQK1NR w KQ - +E48 Nimzo-Indian Defense: Ragozin Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 b8c6 e1g1 r1bq1rk1/ppp2ppp/2n1pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 b - - +E49 Nimzo-Indian Defense: Normal Variation, Botvinnik System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 a2a3 b4c3 b2c3 rnbq1rk1/ppp2ppp/4pn2/3p4/2PP4/P1PBP3/5PPP/R1BQK1NR b KQ - +E50 Nimzo-Indian Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1PN2/PP3PPP/R1BQKB1R b KQ - +E51 Nimzo-Indian Defense: Normal Variation, Ragozin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2N1PN2/PP3PPP/R1BQKB1R w KQ - +E51 Nimzo-Indian Defense: Normal Variation, Sämisch Deferred 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 a2a3 rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/P1N1PN2/1P3PPP/R1BQKB1R b KQ - +E51 Nimzo-Indian Defense: Ragozin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O dxc4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 b8c6 e1g1 d5c4 r1bq1rk1/ppp2ppp/2n1pn2/8/1bpP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +E52 Nimzo-Indian Defense: Normal Variation, Schlechter Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 b7b6 rnbq1rk1/p1p2ppp/1p2pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQ - +E53 Nimzo-Indian Defense: Normal Variation, Gligoric System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 rnbq1rk1/pp3ppp/4pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQ - +E53 Nimzo-Indian Defense: Normal Variation, Gligoric System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b8d7 r1bq1rk1/pp1n1ppp/4pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +E53 Nimzo-Indian Defense: Normal Variation, Gligoric System, Keres Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b7b6 rnbq1rk1/p4ppp/1p2pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +E54 Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange at c4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 d5c4 d3c4 rnbq1rk1/pp3ppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 b - - +E54 Nimzo-Indian Defense: Normal Variation, Gligoric System, Smyslov Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Qe7 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 d5c4 d3c4 d8e7 rnb2rk1/pp2qppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 w - - +E55 Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 d5c4 d3c4 b8d7 r1bq1rk1/pp1n1ppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 w - - +E56 Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b8c6 r1bq1rk1/pp3ppp/2n1pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +E58 Nimzo-Indian Defense: Normal Variation, Bernstein Defense, Exchange Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b8c6 a2a3 b4c3 b2c3 r1bq1rk1/pp3ppp/2n1pn2/2pp4/2PP4/P1PBPN2/5PPP/R1BQ1RK1 b - - +E59 Nimzo-Indian Defense: Normal Variation, Bernstein Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b8c6 a2a3 b4c3 b2c3 d5c4 d3c4 r1bq1rk1/pp3ppp/2n1pn2/2p5/2BP4/P1P1PN2/5PPP/R1BQ1RK1 b - - +E60 Grünfeld Defense: Counterthrust Variation 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 d7d5 rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq - +E60 Indian Defense: Anti-Grünfeld, Adorjan Gambit 1. d4 Nf6 2. c4 g6 3. d5 b5 d2d4 g8f6 c2c4 g7g6 d4d5 b7b5 rnbqkb1r/p1pppp1p/5np1/1p1P4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +E60 Indian Defense: Anti-Grünfeld, Advance Variation 1. d4 Nf6 2. c4 g6 3. d5 d2d4 g8f6 c2c4 g7g6 d4d5 rnbqkb1r/pppppp1p/5np1/3P4/2P5/8/PP2PPPP/RNBQKBNR b KQkq - +E60 Indian Defense: Anti-Grünfeld, Alekhine Variation 1. d4 Nf6 2. c4 g6 3. f3 d2d4 g8f6 c2c4 g7g6 f2f3 rnbqkb1r/pppppp1p/5np1/8/2PP4/5P2/PP2P1PP/RNBQKBNR b KQkq - +E60 Indian Defense: Anti-Grünfeld, Alekhine Variation, Leko Gambit 1. d4 Nf6 2. c4 g6 3. f3 e5 d2d4 g8f6 c2c4 g7g6 f2f3 e7e5 rnbqkb1r/pppp1p1p/5np1/4p3/2PP4/5P2/PP2P1PP/RNBQKBNR w KQkq - +E60 Indian Defense: King's Indian Variation, Fianchetto Variation 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 rnbqk2r/ppppppbp/5np1/8/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq - +E60 Indian Defense: West Indian Defense 1. d4 Nf6 2. c4 g6 d2d4 g8f6 c2c4 g7g6 rnbqkb1r/pppppp1p/5np1/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +E60 King's Indian Defense: Fianchetto Variation, Immediate Fianchetto 1. d4 Nf6 2. c4 g6 3. g3 d2d4 g8f6 c2c4 g7g6 g2g3 rnbqkb1r/pppppp1p/5np1/8/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq - +E60 King's Indian Defense: Fianchetto Variation, Pterodactyl Variation 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 c5 5. Bg2 Qa5+ d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 g2g3 c7c5 f1g2 d8a5 rnb1k2r/pp1pppbp/5np1/q1p5/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E60 King's Indian Defense: Fianchetto Variation, Yugoslav System 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c5 rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +E60 King's Indian Defense: Normal Variation, King's Knight Variation 1. d4 Nf6 2. Nf3 g6 3. c4 d2d4 g8f6 g1f3 g7g6 c2c4 rnbqkb1r/pppppp1p/5np1/8/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +E60 King's Indian Defense: Santasiere Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. b4 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 b2b4 rnbqk2r/ppppppbp/5np1/8/1PPP4/5N2/P3PPPP/RNBQKB1R b KQkq - +E60 King's Indian Defense: Semi-Classical Variation, Benoni Variation 1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. Nc3 O-O 5. e3 d6 6. Be2 c6 c2c4 g8f6 g1f3 g7g6 d2d4 f8g7 b1c3 e8g8 e2e3 d7d6 f1e2 c7c6 rnbq1rk1/pp2ppbp/2pp1np1/8/2PP4/2N1PN2/PP2BPPP/R1BQK2R w KQ - +E60 King's Indian Defense: Semi-Classical Variation, Hollywood Variation 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e3 d6 6. Be2 Nc6 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 b1c3 e8g8 e2e3 d7d6 f1e2 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/2PP4/2N1PN2/PP2BPPP/R1BQK2R w KQ - +E60 Neo-Grünfeld Defense: Non- or Delayed Fianchetto 1. d4 Nf6 2. Nf3 g6 3. c4 d5 d2d4 g8f6 g1f3 g7g6 c2c4 d7d5 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E60 Queen's Pawn, Mengarini Attack 1. d4 Nf6 2. c4 g6 3. Qc2 d2d4 g8f6 c2c4 g7g6 d1c2 rnbqkb1r/pppppp1p/5np1/8/2PP4/8/PPQ1PPPP/RNB1KBNR b KQkq - +E61 King's Indian Defense 1. d4 Nf6 2. c4 g6 3. Nc3 d2d4 g8f6 c2c4 g7g6 b1c3 rnbqkb1r/pppppp1p/5np1/8/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +E61 King's Indian Defense: Semi-Classical Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. e3 d6 6. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 e8g8 e2e3 d7d6 f1e2 rnbq1rk1/ppp1ppbp/3p1np1/8/2PP4/2N1PN2/PP2BPPP/R1BQK2R b KQ - +E61 King's Indian Defense: Semi-Classical Variation, Queenside Storm Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. e3 d6 6. Be2 Nbd7 7. O-O e5 8. b4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 e8g8 e2e3 d7d6 f1e2 b8d7 e1g1 e7e5 b2b4 r1bq1rk1/pppn1pbp/3p1np1/4p3/1PPP4/2N1PN2/P3BPPP/R1BQ1RK1 b - - +E61 King's Indian Defense: Smyslov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 c1g5 rnbqk2r/ppp1ppbp/3p1np1/6B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - +E62 King's Indian Defense: Fianchetto Variation, Delayed Fianchetto 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 rnbqk2r/ppp1ppbp/3p1np1/8/2PP4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +E62 King's Indian Defense: Fianchetto Variation, Karlsbad Variation 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 b1c3 d7d6 g1f3 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ - +E62 King's Indian Defense: Fianchetto Variation, Kavalek Defense 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c6 7. Nc3 Qa5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c6 b1c3 d8a5 rnb2rk1/pp2ppbp/2pp1np1/q7/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E62 King's Indian Defense: Fianchetto Variation, Larsen Defense 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c6 7. Nc3 Bf5 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c6 b1c3 c8f5 rn1q1rk1/pp2ppbp/2pp1np1/5b2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E62 King's Indian Defense: Fianchetto Variation, Lesser Simagin (Spassky) 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 7. O-O Bf5 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 b1c3 d7d6 g1f3 b8c6 e1g1 c8f5 r2q1rk1/ppp1ppbp/2np1np1/5b2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E62 King's Indian Defense: Fianchetto Variation, Simagin Variation 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nc6 7. Nc3 Bg4 g1f3 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d6 d2d4 b8c6 b1c3 c8g4 r2q1rk1/ppp1ppbp/2np1np1/8/2PP2b1/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E62 King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 e5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 e7e5 r1bq1rk1/ppp2pbp/2np1np1/4p3/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E63 King's Indian Defense: Fianchetto Variation, Panno Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 a7a6 r1bq1rk1/1pp1ppbp/p1np1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E63 King's Indian Defense: Fianchetto Variation, Panno Variation, Blockade Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 e5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 a7a6 d4d5 c6a5 f3d2 c7c5 d1c2 e7e5 r1bq1rk1/1p3pbp/p2p1np1/n1pPp3/2P5/2N3P1/PPQNPPBP/R1B2RK1 w - e6 +E63 King's Indian Defense: Fianchetto Variation, Panno Variation, Donner Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 b5 12. Bb2 bxc4 13. bxc4 Bh6 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 a7a6 d4d5 c6a5 f3d2 c7c5 d1c2 a8b8 b2b3 b7b5 c1b2 b5c4 b3c4 g7h6 1rbq1rk1/4pp1p/p2p1npb/n1pP4/2P5/2N3P1/PBQNPPBP/R4RK1 w - - +E63 King's Indian Defense: Fianchetto Variation, Panno Variation, Korchnoi Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. h3 Rb8 9. Be3 b5 10. Nd2 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 a7a6 h2h3 a8b8 c1e3 b7b5 f3d2 1rbq1rk1/2p1ppbp/p1np1np1/1p6/2PP4/2N1B1PP/PP1NPPB1/R2Q1RK1 b - - +E64 King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 c5 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 b1c3 d7d6 g1f3 c7c5 rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ - +E65 King's Indian Defense: Fianchetto Variation, Yugoslav Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 7. Nc3 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c5 b1c3 rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +E65 King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. d4 d6 7. Nc3 Nc6 8. dxc5 dxc5 g1f3 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 c7c5 d2d4 d7d6 b1c3 b8c6 d4c5 d6c5 r1bq1rk1/pp2ppbp/2n2np1/2p5/2P5/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E66 King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 7. Nc3 Nc6 8. d5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c5 b1c3 b8c6 d4d5 r1bq1rk1/pp2ppbp/2np1np1/2pP4/2P5/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +E67 King's Indian Defense: Fianchetto Variation, Classical Fianchetto 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8d7 b1c3 e7e5 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E67 King's Indian Defense: Fianchetto Variation, Debrecen Defense 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 b1c3 d7d6 g1f3 b8d7 r1bq1rk1/pppnppbp/3p1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ - +E67 King's Indian Defense: Fianchetto Variation, Double Fianchetto Attack 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. b3 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d6 c2c4 b8d7 b1c3 e7e5 b2b3 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PP4/1PN2NP1/P3PPBP/R1BQ1RK1 b - - +E67 King's Indian Defense: Fianchetto Variation, Hungarian Variation 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nbd7 7. O-O a6 c2c4 g8f6 b1c3 g7g6 g2g3 f8g7 f1g2 e8g8 d2d4 d7d6 g1f3 b8d7 e1g1 a7a6 r1bq1rk1/1ppnppbp/p2p1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E68 King's Indian Defense: Fianchetto Variation, Classical Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8d7 b1c3 e7e5 e2e4 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2NP1/PP3PBP/R1BQ1RK1 b - - +E68 King's Indian Defense: Fianchetto Variation, Long Variation 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5 11. Re1 a5 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8d7 b1c3 e7e5 e2e4 e5d4 f3d4 f8e8 h2h3 d7c5 f1e1 a7a5 r1bqr1k1/1pp2pbp/3p1np1/p1n5/2PNP3/2N3PP/PP3PB1/R1BQR1K1 w - - +E69 King's Indian Defense: Fianchetto Variation, Classical Main Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8d7 b1c3 e7e5 e2e4 c7c6 h2h3 r1bq1rk1/pp1n1pbp/2pp1np1/4p3/2PPP3/2N2NPP/PP3PB1/R1BQ1RK1 b - - +E70 King's Indian Defense: Accelerated Averbakh Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 c1g5 rnbqk2r/ppp1ppbp/3p1np1/6B1/2PPP3/2N5/PP3PPP/R2QKBNR b KQkq - +E70 King's Indian Defense: Kramer Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nge2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1e2 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP2NPPP/R1BQKB1R b KQkq - +E70 King's Indian Defense: Normal Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 rnbqk2r/ppppppbp/5np1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +E70 King's Indian Defense: Normal Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq - +E71 King's Indian Defense: Makogonov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 h2h3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N4P/PP3PP1/R1BQKBNR b KQkq - +E72 King's Indian Defense: Normal Variation, Deferred Fianchetto 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g2g3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N3P1/PP3P1P/R1BQKBNR b KQkq - +E72 King's Indian Defense: Pomar System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 O-O 6. Bg2 e5 7. Nge2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g2g3 e8g8 f1g2 e7e5 g1e2 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N3P1/PP2NPBP/R1BQK2R b KQ - +E73 King's Indian Defense: Averbakh Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 rnbq1rk1/ppp1ppbp/3p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR b KQ - +E73 King's Indian Defense: Averbakh Variation, Flexible Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 h6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 h7h6 rnbq1rk1/ppp1ppb1/3p1npp/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Geller Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Nbd7 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 b8d7 r1bq1rk1/pppnppbp/3p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Modern Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Na6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 b8a6 r1bq1rk1/ppp1ppbp/n2p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Modern Defense, Burgess Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Na6 7. Qd2 c6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 b8a6 d1d2 c7c6 r1bq1rk1/pp2ppbp/n1pp1np1/6B1/2PPP3/2N5/PP1QBPPP/R3K1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Nc6 Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Spanish Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 a6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 a7a6 rnbq1rk1/1pp1ppbp/p2p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Normal Variation, Standard Development 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP2BPPP/R1BQK1NR b KQkq - +E73 King's Indian Defense: Semi-Averbakh System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1e3 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N1B3/PP2BPPP/R2QK1NR b KQ - +E74 King's Indian Defense: Averbakh Variation, Benoni Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 rnbq1rk1/pp2ppbp/3p1np1/2p3B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E74 King's Indian Defense: Averbakh Variation, Benoni Defense, Advance Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 d4d5 rnbq1rk1/pp2ppbp/3p1np1/2pP2B1/2P1P3/2N5/PP2BPPP/R2QK1NR b KQ - +E74 King's Indian Defense: Averbakh Variation, Benoni Defense, Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. dxc5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 d4c5 rnbq1rk1/pp2ppbp/3p1np1/2P3B1/2P1P3/2N5/PP2BPPP/R2QK1NR b KQ - +E75 King's Indian Defense: Averbakh Variation, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 d4d5 e7e6 rnbq1rk1/pp3pbp/3ppnp1/2pP2B1/2P1P3/2N5/PP2BPPP/R2QK1NR w KQ - +E76 King's Indian Defense: Four Pawns Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 rnbqk2r/ppp1ppbp/3p1np1/8/2PPPP2/2N5/PP4PP/R1BQKBNR b KQkq - +E76 King's Indian Defense: Four Pawns Attack, Dynamic Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 rnbq1rk1/pp2ppbp/3p1np1/2pP4/2P1PP2/2N2N2/PP4PP/R1BQKB1R b KQ - +E76 King's Indian Defense: Four Pawns Attack, Modern Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 Na6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 b8a6 r1bqk2r/ppp1ppbp/n2p1np1/8/2PPPP2/2N5/PP4PP/R1BQKBNR w KQkq - +E77 King's Indian Defense: Four Pawns Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 f2f4 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPPP2/2N5/PP2B1PP/R1BQK1NR b KQ - +E77 King's Indian Defense: Four Pawns Attack, Florentine Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. e5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 e6d5 e4e5 rnbq1rk1/pp3pbp/3p1np1/2ppP3/2P2P2/2N2N2/PP2B1PP/R1BQK2R b KQ - +E77 King's Indian Defense: Four Pawns Attack, Normal Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 rnbq1rk1/pp3pbp/3ppnp1/2pP4/2P1PP2/2N2N2/PP2B1PP/R1BQK2R b KQ - +E77 King's Indian Defense: Six Pawns Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. d5 e6 8. dxe6 fxe6 9. g4 Nc6 10. h4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 f1e2 c7c5 d4d5 e7e6 d5e6 f7e6 g2g4 b8c6 h2h4 r1bq1rk1/pp4bp/2nppnp1/2p5/2P1PPPP/2N5/PP2B3/R1BQK1NR b KQ - +E78 King's Indian Defense: Four Pawns Attack, Fluid Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 f1e2 rnbq1rk1/pp2ppbp/3p1np1/2p5/2PPPP2/2N2N2/PP2B1PP/R1BQK2R b KQ - +E79 King's Indian Defense: Four Pawns Attack, Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. Be2 cxd4 8. Nxd4 Nc6 9. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 f1e2 c5d4 f3d4 b8c6 c1e3 r1bq1rk1/pp2ppbp/2np1np1/8/2PNPP2/2N1B3/PP2B1PP/R2QK2R b KQ - +E80 King's Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP4PP/R1BQKBNR b KQkq - +E81 King's Indian Defense: Steiner Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1g5 rnbq1rk1/ppp1ppbp/3p1np1/6B1/2PPP3/2N2P2/PP4PP/R2QKBNR b KQ - +E81 King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Nge2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 g1e2 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP2N1PP/R1BQKB1R b KQ - +E81 King's Indian Defense: Sämisch Variation, Byrne Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 c7c6 f1d3 a7a6 rnbq1rk1/1p2ppbp/p1pp1np1/8/2PPP3/2NBBP2/PP4PP/R2QK1NR w KQ - +E81 King's Indian Defense: Sämisch Variation, Normal Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP4PP/R1BQKBNR w KQ - +E82 King's Indian Defense: Sämisch Variation, Double Fianchetto 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 b6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b7b6 rnbq1rk1/p1p1ppbp/1p1p1np1/8/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ - +E83 King's Indian Defense: Sämisch Variation, Panno Formation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a7a6 r1bq1rk1/1pp1ppbp/p1np1np1/8/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ - +E83 King's Indian Defense: Sämisch Variation, Ruban Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 Rb8 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a8b8 1rbq1rk1/ppp1ppbp/2np1np1/8/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ - +E83 King's Indian Defense: Sämisch Variation, Yates Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ - +E84 King's Indian Defense: Sämisch Variation, Panno Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a7a6 d1d2 a8b8 1rbq1rk1/1pp1ppbp/p1np1np1/8/2PPP3/2N1BP2/PP1QN1PP/R3KB1R w KQ - +E85 King's Indian Defense: Sämisch Variation, Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ - +E86 King's Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 g1e2 c7c6 rnbq1rk1/pp3pbp/2pp1np1/4p3/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ - +E87 King's Indian Defense: Sämisch Variation, Bronstein Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Nh5 8. Qd2 Qh4+ 9. g3 Nxg3 10. Qf2 Nxf1 11. Qxh4 Nxe3 12. Ke2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 f6h5 d1d2 d8h4 g2g3 h5g3 d2f2 g3f1 f2h4 f1e3 e1e2 rnb2rk1/ppp2pbp/3p2p1/3Pp3/2P1P2Q/2N1nP2/PP2K2P/R5NR b - - +E87 King's Indian Defense: Sämisch Variation, Closed Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 rnbq1rk1/ppp2pbp/3p1np1/3Pp3/2P1P3/2N1BP2/PP4PP/R2QKBNR b KQ - +E87 King's Indian Defense: Sämisch Variation, Orthodox Variation, Bronstein Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Nh5 8. Qd2 Qh4+ 9. g3 Nxg3 10. Qf2 Nxf1 11. Qxh4 Nxe3 12. Ke2 Nxc4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 f6h5 d1d2 d8h4 g2g3 h5g3 d2f2 g3f1 f2h4 f1e3 e1e2 e3c4 rnb2rk1/ppp2pbp/3p2p1/3Pp3/2n1P2Q/2N2P2/PP2K2P/R5NR w - - +E89 King's Indian Defense: Sämisch Variation, Closed Variation, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 g1e2 c7c6 d4d5 c6d5 rnbq1rk1/pp3pbp/3p1np1/3pp3/2P1P3/2N1BP2/PP2N1PP/R2QKB1R w KQ - +E90 King's Indian Defense: Larsen Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 c1e3 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N1BN2/PP3PPP/R2QKB1R b KQ - +E90 King's Indian Defense: Normal Variation, Rare Defenses 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +E90 King's Indian Defense: Zinnowitz Variation 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Bg5 g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 d2d4 e8g8 c1g5 rnbq1rk1/ppp1ppbp/3p1np1/6B1/2PPP3/2N2N2/PP3PPP/R2QKB1R b KQ - +E91 King's Indian Defense: Kazakh Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Na6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 b8a6 r1bq1rk1/ppp1ppbp/n2p1np1/8/2PPP3/2N2N2/PP2BPPP/R1BQK2R w KQ - +E91 King's Indian Defense: Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2N2/PP2BPPP/R1BQK2R b KQ - +E92 King's Indian Defense: Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. dxe5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4e5 rnbq1rk1/ppp2pbp/3p1np1/4P3/2P1P3/2N2N2/PP2BPPP/R1BQK2R b KQ - +E92 King's Indian Defense: Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQK2R w KQ - +E92 King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 c1e3 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N1BN2/PP2BPPP/R2QK2R b KQ - +E92 King's Indian Defense: Petrosian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 rnbq1rk1/ppp2pbp/3p1np1/3Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R b KQ - +E92 King's Indian Defense: Petrosian Variation, Stein Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 a5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 a7a5 rnbq1rk1/1pp2pbp/3p1np1/p2Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R w KQ - +E93 King's Indian Defense: Petrosian Variation, Keres Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nh5 11. h4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 b8d7 c1g5 h7h6 g5h4 g6g5 h4g3 f6h5 h2h4 r1bq1rk1/pppn1pb1/3p3p/3Pp1pn/2P1P2P/2N2NB1/PP2BPP1/R2QK2R b KQ - +E93 King's Indian Defense: Petrosian Variation, Normal Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 b8d7 r1bq1rk1/pppn1pbp/3p1np1/3Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R w KQ - +E94 King's Indian Defense: Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 b - - +E94 King's Indian Defense: Orthodox Variation, Donner Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O c6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 c7c6 rnbq1rk1/pp3pbp/2pp1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E94 King's Indian Defense: Orthodox Variation, Glek Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Na6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8a6 r1bq1rk1/ppp2pbp/n2p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E94 King's Indian Defense: Orthodox Variation, Positional Defense 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 g6 6. Be2 Bg7 7. O-O O-O d2d4 g8f6 c2c4 d7d6 b1c3 b8d7 e2e4 e7e5 g1f3 g7g6 f1e2 f8g7 e1g1 e8g8 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E94 King's Indian Defense: Orthodox Variation, Positional Defense, Closed Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 b8d7 e1g1 e7e5 d4d5 r1bq1rk1/pppn1pbp/3p1np1/3Pp3/2P1P3/2N2N2/PP2BPPP/R1BQ1RK1 b - - +E94 King's Indian Defense: Orthodox Variation, Ukrainian Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O a5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 a7a5 rnbq1rk1/1pp2pbp/3p1np1/p3p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E95 King's Indian Defense: Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8d7 f1e1 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQR1K1 b - - +E96 King's Indian Defense: Orthodox Variation, Positional Defense, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 c6 9. Bf1 a5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8d7 f1e1 c7c6 e2f1 a7a5 r1bq1rk1/1p1n1pbp/2pp1np1/p3p3/2PPP3/2N2N2/PP3PPP/R1BQRBK1 w - - +E97 King's Indian Defense: Orthodox Variation, Aronin-Taimanov Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 r1bq1rk1/ppp2pbp/2np1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E97 King's Indian Defense: Orthodox Variation, Bayonet Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 b2b4 r1bq1rk1/ppp1npbp/3p1np1/3Pp3/1PP1P3/2N2N2/P3BPPP/R1BQ1RK1 b - - +E97 King's Indian Defense: Orthodox Variation, Bayonet Attack, Sokolov's Line 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. d4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 Nh5 10. Re1 g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 e8g8 d2d4 d7d6 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 b2b4 f6h5 f1e1 r1bq1rk1/ppp1npbp/3p2p1/3Pp2n/1PP1P3/2N2N2/P3BPPP/R1BQR1K1 b - - +E97 King's Indian Defense: Orthodox Variation, Bayonet Attack, Yepishin's Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 Nh5 10. Qc2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 b2b4 f6h5 d1c2 r1bq1rk1/ppp1npbp/3p2p1/3Pp2n/1PP1P3/2N2N2/P1Q1BPPP/R1B2RK1 b - - +E97 King's Indian Defense: Orthodox Variation, Korchnoi Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Bd2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 c1d2 r1bq1rk1/ppp1npbp/3p1np1/3Pp3/2P1P3/2N2N2/PP1BBPPP/R2Q1RK1 b - - +E97 King's Indian Defense: Orthodox Variation, Modern System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3d2 r1bq1rk1/ppp1npbp/3p1np1/3Pp3/2P1P3/2N5/PP1NBPPP/R1BQ1RK1 b - - +E98 King's Indian Defense: Orthodox Variation, Classical System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 r1bq1rk1/ppp1npbp/3p1np1/3Pp3/2P1P3/2N5/PP2BPPP/R1BQNRK1 b - - +E98 King's Indian Defense: Orthodox Variation, Classical System, Kozul Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Rc1 Ng6 14. c5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 c1e3 f7f5 f2f3 f5f4 e3f2 g6g5 a1c1 e7g6 c4c5 r1bq1rk1/pppn2bp/3p2n1/2PPp1p1/4Pp2/2N2P2/PP2BBPP/2RQNRK1 b - - +E98 King's Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 c1e3 r1bq1rk1/pppnnpbp/3p2p1/3Pp3/2P1P3/2N1B3/PP2BPPP/R2QNRK1 b - - +E99 King's Indian Defense: Orthodox Variation, Classical System, Benko Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. f3 f5 11. g4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 f2f3 f7f5 g2g4 r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P1P1/2N2P2/PP2B2P/R1BQNRK1 b - - +E99 King's Indian Defense: Orthodox Variation, Classical System, Traditional Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. f3 f5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 f2f3 f7f5 r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P3/2N2P2/PP2B1PP/R1BQNRK1 w - -`) diff --git a/opening/eco_lichess.tsv b/opening/eco_lichess.tsv new file mode 100644 index 0000000..759af8e --- /dev/null +++ b/opening/eco_lichess.tsv @@ -0,0 +1,3398 @@ +eco name pgn uci epd +A00 Amar Gambit 1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4 rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQK2R w KQkq - +A00 Amar Opening 1. Nh3 g1h3 rnbqkbnr/pppppppp/8/8/8/7N/PPPPPPPP/RNBQKB1R b KQkq - +A00 Amar Opening: Gent Gambit 1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O fxg3 6. hxg3 g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4 e1g1 f4g3 h2g3 rn1qkbnr/ppp2ppp/8/3p4/8/6PB/PPPPP3/RNBQ1RK1 b kq - +A00 Amar Opening: Paris Gambit 1. Nh3 d5 2. g3 e5 3. f4 g1h3 d7d5 g2g3 e7e5 f2f4 rnbqkbnr/ppp2ppp/8/3pp3/5P2/6PN/PPPPP2P/RNBQKB1R b KQkq - +A00 Amsterdam Attack 1. e3 e5 2. c4 d6 3. Nc3 Nc6 4. b3 Nf6 e2e3 e7e5 c2c4 d7d6 b1c3 b8c6 b2b3 g8f6 r1bqkb1r/ppp2ppp/2np1n2/4p3/2P5/1PN1P3/P2P1PPP/R1BQKBNR w KQkq - +A00 Anderssen's Opening 1. a3 a2a3 rnbqkbnr/pppppppp/8/8/8/P7/1PPPPPPP/RNBQKBNR b KQkq - +A00 Anderssen's Opening: Polish Gambit 1. a3 a5 2. b4 a2a3 a7a5 b2b4 rnbqkbnr/1ppppppp/8/p7/1P6/P7/2PPPPPP/RNBQKBNR b KQkq - +A00 Barnes Opening: Fool's Mate 1. f3 e5 2. g4 Qh4# f2f3 e7e5 g2g4 d8h4 rnb1kbnr/pppp1ppp/8/4p3/6Pq/5P2/PPPPP2P/RNBQKBNR w KQkq - +A00 Barnes Opening: Gedult Gambit 1. f3 d5 2. e4 g6 3. d4 dxe4 4. c3 f2f3 d7d5 e2e4 g7g6 d2d4 d5e4 c2c3 rnbqkbnr/ppp1pp1p/6p1/8/3Pp3/2P2P2/PP4PP/RNBQKBNR b KQkq - +A00 Barnes Opening: Gedult Gambit 1. f3 f5 2. e4 fxe4 3. Nc3 f2f3 f7f5 e2e4 f5e4 b1c3 rnbqkbnr/ppppp1pp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq - +A00 Barnes Opening: Hammerschlag 1. f3 e5 2. Kf2 f2f3 e7e5 e1f2 rnbqkbnr/pppp1ppp/8/4p3/8/5P2/PPPPPKPP/RNBQ1BNR b kq - +A00 Clemenz Opening 1. h3 h2h3 rnbqkbnr/pppppppp/8/8/8/7P/PPPPPPP1/RNBQKBNR b KQkq - +A00 Clemenz Opening: Spike Lee Gambit 1. h3 h5 2. g4 h2h3 h7h5 g2g4 rnbqkbnr/ppppppp1/8/7p/6P1/7P/PPPPPP2/RNBQKBNR b KQkq - +A00 Crab Opening 1. a4 e5 2. h4 a2a4 e7e5 h2h4 rnbqkbnr/pppp1ppp/8/4p3/P6P/8/1PPPPPP1/RNBQKBNR b KQkq - +A00 Creepy Crawly Formation: Classical Defense 1. h3 d5 2. a3 e5 h2h3 d7d5 a2a3 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/8/P6P/1PPPPPP1/RNBQKBNR w KQkq - +A00 Englund Gambit Declined: Reversed French 1. e3 e5 2. d4 e2e3 e7e5 d2d4 rnbqkbnr/pppp1ppp/8/4p3/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq - +A00 Formation: Cabbage Attack 1. c3 e5 2. a3 d5 3. b3 Nf6 4. Bb2 Nc6 5. a4 Bd6 6. g3 O-O 7. e3 c2c3 e7e5 a2a3 d7d5 b2b3 g8f6 c1b2 b8c6 a3a4 f8d6 g2g3 e8g8 e2e3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/P7/1PP1P1P1/1B1P1P1P/RN1QKBNR b KQ - +A00 Formation: Hippopotamus Attack 1. a3 e5 2. b3 d5 3. c3 Nf6 4. d3 Nc6 5. e3 Bd6 6. f3 O-O 7. g3 a2a3 e7e5 b2b3 d7d5 c2c3 g8f6 d2d3 b8c6 e2e3 f8d6 f2f3 e8g8 g2g3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/PPPPPPP1/7P/RNBQKBNR b KQ - +A00 Formation: Shy Attack 1. a3 e5 2. g3 d5 3. Bg2 Nf6 4. d3 Nc6 5. Nd2 Bd6 6. e3 O-O 7. h3 a2a3 e7e5 g2g3 d7d5 f1g2 g8f6 d2d3 b8c6 b1d2 f8d6 e2e3 e8g8 h2h3 r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/P2PP1PP/1PPN1PB1/R1BQK1NR b KQ - +A00 Gedult's Opening 1. f3 f2f3 rnbqkbnr/pppppppp/8/8/8/5P2/PPPPP1PP/RNBQKBNR b KQkq - +A00 Global Opening 1. h3 e5 2. a3 h2h3 e7e5 a2a3 rnbqkbnr/pppp1ppp/8/4p3/8/P6P/1PPPPPP1/RNBQKBNR b KQkq - +A00 Grob Opening 1. g4 g2g4 rnbqkbnr/pppppppp/8/8/6P1/8/PPPPPP1P/RNBQKBNR b KQkq - +A00 Grob Opening: Alessi Gambit 1. g4 f5 g2g4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/6P1/8/PPPPPP1P/RNBQKBNR w KQkq - +A00 Grob Opening: Double Grob 1. g4 g5 g2g4 g7g5 rnbqkbnr/pppppp1p/8/6p1/6P1/8/PPPPPP1P/RNBQKBNR w KQkq - +A00 Grob Opening: Double Grob, Coca-Cola Gambit 1. g4 g5 2. f4 g2g4 g7g5 f2f4 rnbqkbnr/pppppp1p/8/6p1/5PP1/8/PPPPP2P/RNBQKBNR b KQkq - +A00 Grob Opening: Grob Gambit 1. g4 d5 2. Bg2 g2g4 d7d5 f1g2 rnbqkbnr/ppp1pppp/8/3p4/6P1/8/PPPPPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Grob Gambit Declined 1. g4 d5 2. Bg2 c6 g2g4 d7d5 f1g2 c7c6 rnbqkbnr/pp2pppp/2p5/3p4/6P1/8/PPPPPPBP/RNBQK1NR w KQkq - +A00 Grob Opening: Grob Gambit, Basman Gambit 1. g4 d5 2. Bg2 h5 3. gxh5 g2g4 d7d5 f1g2 h7h5 g4h5 rnbqkbnr/ppp1ppp1/8/3p3P/8/8/PPPPPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Grob Gambit, Fritz Gambit 1. g4 d5 2. Bg2 Bxg4 3. c4 g2g4 d7d5 f1g2 c8g4 c2c4 rn1qkbnr/ppp1pppp/8/3p4/2P3b1/8/PP1PPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Grob Gambit, Fritz Gambit, Romford Countergambit 1. g4 d5 2. Bg2 Bxg4 3. c4 d4 4. Bxb7 Nd7 5. Bxa8 Qxa8 g2g4 d7d5 f1g2 c8g4 c2c4 d5d4 g2b7 b8d7 b7a8 d8a8 q3kbnr/p1pnpppp/8/8/2Pp2b1/8/PP1PPP1P/RNBQK1NR w KQk - +A00 Grob Opening: Grob Gambit, Keres Gambit 1. g4 d5 2. Bg2 e5 3. d4 exd4 4. c3 g2g4 d7d5 f1g2 e7e5 d2d4 e5d4 c2c3 rnbqkbnr/ppp2ppp/8/3p4/3p2P1/2P5/PP2PPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Grob Gambit, Richter-Grob Gambit 1. g4 d5 2. Bg2 c6 3. c4 dxc4 4. b3 g2g4 d7d5 f1g2 c7c6 c2c4 d5c4 b2b3 rnbqkbnr/pp2pppp/2p5/8/2p3P1/1P6/P2PPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Keene Defense 1. g4 d5 2. h3 e5 3. Bg2 c6 g2g4 d7d5 h2h3 e7e5 f1g2 c7c6 rnbqkbnr/pp3ppp/2p5/3pp3/6P1/7P/PPPPPPB1/RNBQK1NR w KQkq - +A00 Grob Opening: Keene Defense, Main Line 1. g4 d5 2. h3 e5 3. Bg2 c6 4. d4 e4 5. c4 Bd6 6. Nc3 Ne7 g2g4 d7d5 h2h3 e7e5 f1g2 c7c6 d2d4 e5e4 c2c4 f8d6 b1c3 g8e7 rnbqk2r/pp2nppp/2pb4/3p4/2PPp1P1/2N4P/PP2PPB1/R1BQK1NR w KQkq - +A00 Grob Opening: London Defense 1. g4 e5 2. h3 Nc6 g2g4 e7e5 h2h3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/6P1/7P/PPPPPP2/RNBQKBNR w KQkq - +A00 Grob Opening: Romford Countergambit 1. g4 d5 2. Bg2 Bxg4 3. c4 d4 g2g4 d7d5 f1g2 c8g4 c2c4 d5d4 rn1qkbnr/ppp1pppp/8/8/2Pp2b1/8/PP1PPPBP/RNBQK1NR w KQkq - +A00 Grob Opening: Spike Attack 1. g4 d5 2. Bg2 c6 3. g5 g2g4 d7d5 f1g2 c7c6 g4g5 rnbqkbnr/pp2pppp/2p5/3p2P1/8/8/PPPPPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Spike, Hurst Attack 1. g4 e5 2. Bg2 d5 3. c4 g2g4 e7e5 f1g2 d7d5 c2c4 rnbqkbnr/ppp2ppp/8/3pp3/2P3P1/8/PP1PPPBP/RNBQK1NR b KQkq - +A00 Grob Opening: Zilbermints Gambit 1. g4 d5 2. e4 dxe4 3. Nc3 g2g4 d7d5 e2e4 d5e4 b1c3 rnbqkbnr/ppp1pppp/8/8/4p1P1/2N5/PPPP1P1P/R1BQKBNR b KQkq - +A00 Grob Opening: Zilbermints Gambit, Schiller Defense 1. g4 d5 2. e4 dxe4 3. Nc3 h5 g2g4 d7d5 e2e4 d5e4 b1c3 h7h5 rnbqkbnr/ppp1ppp1/8/7p/4p1P1/2N5/PPPP1P1P/R1BQKBNR w KQkq - +A00 Grob Opening: Zilbermints Gambit, Zilbermints-Hartlaub Gambit 1. g4 d5 2. e4 dxe4 3. Nc3 e5 4. d3 g2g4 d7d5 e2e4 d5e4 b1c3 e7e5 d2d3 rnbqkbnr/ppp2ppp/8/4p3/4p1P1/2NP4/PPP2P1P/R1BQKBNR b KQkq - +A00 Hungarian Opening 1. g3 g2g3 rnbqkbnr/pppppppp/8/8/8/6P1/PPPPPP1P/RNBQKBNR b KQkq - +A00 Hungarian Opening: Asten Gambit 1. g3 Nc6 2. Nc3 d5 3. d4 e5 4. dxe5 d4 5. Ne4 f5 g2g3 b8c6 b1c3 d7d5 d2d4 e7e5 d4e5 d5d4 c3e4 f7f5 r1bqkbnr/ppp3pp/2n5/4Pp2/3pN3/6P1/PPP1PP1P/R1BQKBNR w KQkq f6 +A00 Hungarian Opening: Burk Gambit 1. g3 e5 2. a3 d5 3. Nf3 e4 4. Nh4 Be7 5. d3 g2g3 e7e5 a2a3 d7d5 g1f3 e5e4 f3h4 f8e7 d2d3 rnbqk1nr/ppp1bppp/8/3p4/4p2N/P2P2P1/1PP1PP1P/RNBQKB1R b KQkq - +A00 Hungarian Opening: Bücker Gambit 1. g3 d5 2. Bg2 e5 3. b4 g2g3 d7d5 f1g2 e7e5 b2b4 rnbqkbnr/ppp2ppp/8/3pp3/1P6/6P1/P1PPPPBP/RNBQK1NR b KQkq - +A00 Hungarian Opening: Catalan Formation 1. g3 d5 2. Bg2 e6 g2g3 d7d5 f1g2 e7e6 rnbqkbnr/ppp2ppp/4p3/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - +A00 Hungarian Opening: Dutch Defense 1. g3 f5 g2g3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Indian Defense 1. g3 Nf6 g2g3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Myers Defense 1. g3 g5 g2g3 g7g5 rnbqkbnr/pppppp1p/8/6p1/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Pachman Gambit 1. g3 f5 2. e4 fxe4 3. Qh5+ g6 g2g3 f7f5 e2e4 f5e4 d1h5 g7g6 rnbqkbnr/ppppp2p/6p1/7Q/4p3/6P1/PPPP1P1P/RNB1KBNR w KQkq - +A00 Hungarian Opening: Paris Gambit 1. g3 e5 2. Nh3 d5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O g2g3 e7e5 g1h3 d7d5 f2f4 c8h3 f1h3 e5f4 e1g1 rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQ1RK1 b kq - +A00 Hungarian Opening: Reversed Alekhine 1. g3 e5 2. Nf3 g2g3 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq - +A00 Hungarian Opening: Reversed Brooklyn Defense, Brooklyn Benko Gambit 1. g3 e5 2. Nf3 e4 3. Ng1 Nf6 4. b4 g2g3 e7e5 g1f3 e5e4 f3g1 g8f6 b2b4 rnbqkb1r/pppp1ppp/5n2/8/1P2p3/6P1/P1PPPP1P/RNBQKBNR b KQkq - +A00 Hungarian Opening: Reversed Modern Defense 1. g3 d5 2. Bg2 c5 g2g3 d7d5 f1g2 c7c5 rnbqkbnr/pp2pppp/8/2pp4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - +A00 Hungarian Opening: Reversed Norwegian Defense 1. g3 e5 2. Nf3 e4 3. Nh4 g2g3 e7e5 g1f3 e5e4 f3h4 rnbqkbnr/pppp1ppp/8/8/4p2N/6P1/PPPPPP1P/RNBQKB1R b KQkq - +A00 Hungarian Opening: Sicilian Invitation 1. g3 c5 g2g3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Slav Formation 1. g3 d5 2. Bg2 c6 g2g3 d7d5 f1g2 c7c6 rnbqkbnr/pp2pppp/2p5/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - +A00 Hungarian Opening: Symmetrical Variation 1. g3 g6 g2g3 g7g6 rnbqkbnr/pppppp1p/6p1/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Hungarian Opening: Van Kuijk Gambit 1. g3 h5 2. Nf3 h4 g2g3 h7h5 g1f3 h5h4 rnbqkbnr/ppppppp1/8/8/7p/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A00 Hungarian Opening: Winterberg Gambit 1. g3 d5 2. Bg2 e5 3. c4 dxc4 4. b3 g2g3 d7d5 f1g2 e7e5 c2c4 d5c4 b2b3 rnbqkbnr/ppp2ppp/8/4p3/2p5/1P4P1/P2PPPBP/RNBQK1NR b KQkq - +A00 Indian Defense: Colle System, King's Indian Variation 1. e3 d6 2. d4 g6 3. Nf3 Bg7 4. Bd3 Nf6 e2e3 d7d6 d2d4 g7g6 g1f3 f8g7 f1d3 g8f6 rnbqk2r/ppp1ppbp/3p1np1/8/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq - +A00 Kádas Opening 1. h4 h2h4 rnbqkbnr/pppppppp/8/8/7P/8/PPPPPPP1/RNBQKBNR b KQkq - +A00 Kádas Opening: Beginner's Trap 1. h4 d5 2. Rh3 h2h4 d7d5 h1h3 rnbqkbnr/ppp1pppp/8/3p4/7P/7R/PPPPPPP1/RNBQKBN1 b Qkq - +A00 Kádas Opening: Kádas Gambit 1. h4 c5 2. b4 h2h4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P5P/8/P1PPPPP1/RNBQKBNR b KQkq - +A00 Kádas Opening: Kádas Gambit 1. h4 d5 2. d4 c5 3. Nf3 cxd4 4. c3 h2h4 d7d5 d2d4 c7c5 g1f3 c5d4 c2c3 rnbqkbnr/pp2pppp/8/3p4/3p3P/2P2N2/PP2PPP1/RNBQKB1R b KQkq - +A00 Kádas Opening: Kádas Gambit 1. h4 e5 2. d4 exd4 3. c3 h2h4 e7e5 d2d4 e5d4 c2c3 rnbqkbnr/pppp1ppp/8/8/3p3P/2P5/PP2PPP1/RNBQKBNR b KQkq - +A00 Kádas Opening: Myers Variation 1. h4 d5 2. d4 c5 3. e4 h2h4 d7d5 d2d4 c7c5 e2e4 rnbqkbnr/pp2pppp/8/2pp4/3PP2P/8/PPP2PP1/RNBQKBNR b KQkq - +A00 Kádas Opening: Schneider Gambit 1. h4 g5 h2h4 g7g5 rnbqkbnr/pppppp1p/8/6p1/7P/8/PPPPPPP1/RNBQKBNR w KQkq - +A00 Kádas Opening: Steinbok Gambit 1. h4 f5 2. e4 fxe4 3. d3 h2h4 f7f5 e2e4 f5e4 d2d3 rnbqkbnr/ppppp1pp/8/8/4p2P/3P4/PPP2PP1/RNBQKBNR b KQkq - +A00 Lasker Simul Special 1. g3 h5 g2g3 h7h5 rnbqkbnr/ppppppp1/8/7p/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - +A00 Mieses Opening 1. d3 d2d3 rnbqkbnr/pppppppp/8/8/8/3P4/PPP1PPPP/RNBQKBNR b KQkq - +A00 Mieses Opening: Myers Spike Attack 1. d3 g6 2. g4 d2d3 g7g6 g2g4 rnbqkbnr/pppppp1p/6p1/8/6P1/3P4/PPP1PP1P/RNBQKBNR b KQkq - +A00 Mieses Opening: Reversed Rat 1. d3 e5 d2d3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPP1PPPP/RNBQKBNR w KQkq - +A00 Polish Opening 1. b4 b2b4 rnbqkbnr/pppppppp/8/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq - +A00 Polish Opening: Baltic Defense 1. b4 d5 2. Bb2 Bf5 b2b4 d7d5 c1b2 c8f5 rn1qkbnr/ppp1pppp/8/3p1b2/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Birmingham Gambit 1. b4 c5 b2b4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: Bugayev Advance Variation 1. b4 e5 2. Bb2 f6 3. b5 b2b4 e7e5 c1b2 f7f6 b4b5 rnbqkbnr/pppp2pp/5p2/1P2p3/8/8/PBPPPPPP/RN1QKBNR b KQkq - +A00 Polish Opening: Bugayev Attack 1. b4 e5 2. a3 b2b4 e7e5 a2a3 rnbqkbnr/pppp1ppp/8/4p3/1P6/P7/2PPPPPP/RNBQKBNR b KQkq - +A00 Polish Opening: Czech Defense 1. b4 e5 2. Bb2 d6 b2b4 e7e5 c1b2 d7d6 rnbqkbnr/ppp2ppp/3p4/4p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Dutch Defense 1. b4 f5 b2b4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: German Defense 1. b4 d5 2. Bb2 Qd6 b2b4 d7d5 c1b2 d8d6 rnb1kbnr/ppp1pppp/3q4/3p4/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Grigorian Variation 1. b4 Nc6 b2b4 b8c6 r1bqkbnr/pppppppp/2n5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: Karniewski Variation 1. b4 Nh6 b2b4 g8h6 rnbqkb1r/pppppppp/7n/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: King's Indian Variation 1. b4 Nf6 2. Bb2 g6 b2b4 g8f6 c1b2 g7g6 rnbqkb1r/pppppp1p/5np1/8/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: King's Indian Variation, Schiffler Attack 1. b4 Nf6 2. Bb2 g6 3. e4 b2b4 g8f6 c1b2 g7g6 e2e4 rnbqkb1r/pppppp1p/5np1/8/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Myers Variation 1. b4 d5 2. Bb2 c6 3. a4 b2b4 d7d5 c1b2 c7c6 a2a4 rnbqkbnr/pp2pppp/2p5/3p4/PP6/8/1BPPPPPP/RN1QKBNR b KQkq - +A00 Polish Opening: Orangutan-Diemer Gambit 1. b4 d5 2. Bb2 Qd6 3. a3 e5 4. e4 dxe4 5. f3 b2b4 d7d5 c1b2 d8d6 a2a3 e7e5 e2e4 d5e4 f2f3 rnb1kbnr/ppp2ppp/3q4/4p3/1P2p3/P4P2/1BPP2PP/RN1QKBNR b KQkq - +A00 Polish Opening: Orangutan-Hartlaub Gambit 1. b4 Nf6 2. Bb2 e6 3. a3 c6 4. d3 a5 5. bxa5 d5 6. e4 b2b4 g8f6 c1b2 e7e6 a2a3 c7c6 d2d3 a7a5 b4a5 d7d5 e2e4 rnbqkb1r/1p3ppp/2p1pn2/P2p4/4P3/P2P4/1BP2PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Outflank Variation 1. b4 c6 b2b4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: Queen's Indian Variation 1. b4 e6 2. Bb2 Nf6 3. b5 b6 b2b4 e7e6 c1b2 g8f6 b4b5 b7b6 rnbqkb1r/p1pp1ppp/1p2pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Queenside Defense 1. b4 e6 2. Bb2 Nf6 3. b5 a6 b2b4 e7e6 c1b2 g8f6 b4b5 a7a6 rnbqkb1r/1ppp1ppp/p3pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Polish Opening: Rooks Swap Line 1. b4 e6 2. Bb2 Nf6 3. b5 a6 4. a4 axb5 5. axb5 Rxa1 6. Bxa1 b2b4 e7e6 c1b2 g8f6 b4b5 a7a6 a2a4 a6b5 a4b5 a8a1 b2a1 1nbqkb1r/1ppp1ppp/4pn2/1P6/8/8/2PPPPPP/BN1QKBNR b Kk - +A00 Polish Opening: Schiffler-Sokolsky Variation 1. b4 e6 2. Bb2 Nf6 3. b5 d5 4. e3 b2b4 e7e6 c1b2 g8f6 b4b5 d7d5 e2e3 rnbqkb1r/ppp2ppp/4pn2/1P1p4/8/4P3/PBPP1PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Schuehler Gambit 1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e4 b2b4 c7c6 c1b2 a7a5 b4b5 c6b5 e2e4 rnbqkbnr/1p1ppppp/8/pp6/4P3/8/PBPP1PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Symmetrical Variation 1. b4 b5 b2b4 b7b5 rnbqkbnr/p1pppppp/8/1p6/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - +A00 Polish Opening: Tartakower Gambit 1. b4 e5 2. Bb2 f6 3. e4 b2b4 e7e5 c1b2 f7f6 e2e4 rnbqkbnr/pppp2pp/5p2/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - +A00 Polish Opening: Tartakower Gambit, Brinckmann Variation 1. b4 e5 2. Bb2 f6 3. e4 Bxb4 4. Bc4 Nc6 5. f4 Qe7 6. f5 g6 b2b4 e7e5 c1b2 f7f6 e2e4 f8b4 f1c4 b8c6 f2f4 d8e7 f4f5 g7g6 r1b1k1nr/ppppq2p/2n2pp1/4pP2/1bB1P3/8/PBPP2PP/RN1QK1NR w KQkq - +A00 Polish Opening: Wolferts Gambit 1. b4 e5 2. Bb2 c5 b2b4 e7e5 c1b2 c7c5 rnbqkbnr/pp1p1ppp/8/2p1p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - +A00 Saragossa Opening 1. c3 c2c3 rnbqkbnr/pppppppp/8/8/8/2P5/PP1PPPPP/RNBQKBNR b KQkq - +A00 Sodium Attack 1. Na3 b1a3 rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b KQkq - +A00 Sodium Attack: Celadon Variation 1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1 b1a3 e7e5 d2d3 f8a3 b2a3 d7d5 e2e3 c7c5 a1b1 rnbqk1nr/pp3ppp/8/2ppp3/8/P2PP3/P1P2PPP/1RBQKBNR b Kkq - +A00 Sodium Attack: Chenoboskion Variation 1. Na3 g6 2. g4 b1a3 g7g6 g2g4 rnbqkbnr/pppppp1p/6p1/8/6P1/N7/PPPPPP1P/R1BQKBNR b KQkq - +A00 Sodium Attack: Durkin Gambit 1. Na3 e5 2. Nc4 Nc6 3. e4 f5 b1a3 e7e5 a3c4 b8c6 e2e4 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/2N1P3/8/PPPP1PPP/R1BQKBNR w KQkq - +A00 Valencia Opening 1. d3 e5 2. Nd2 d2d3 e7e5 b1d2 rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPPNPPPP/R1BQKBNR b KQkq - +A00 Van Geet Opening 1. Nc3 b1c3 rnbqkbnr/pppppppp/8/8/8/2N5/PPPPPPPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Battambang Variation 1. a3 e5 2. Nc3 a2a3 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/8/P1N5/1PPPPPPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Billockus-Johansen Gambit 1. Nc3 e5 2. Nf3 Bc5 b1c3 e7e5 g1f3 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - +A00 Van Geet Opening: Caro-Kann Variation, St. Patrick's Attack 1. Nc3 d5 2. e4 c6 3. h3 b1c3 d7d5 e2e4 c7c6 h2h3 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N4P/PPPP1PP1/R1BQKBNR b KQkq - +A00 Van Geet Opening: Damhaug Gambit 1. Nc3 d5 2. f4 e5 b1c3 d7d5 f2f4 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Dougherty Gambit 1. Nc3 d5 2. e4 dxe4 3. f3 b1c3 d7d5 e2e4 d5e4 f2f3 rnbqkbnr/ppp1pppp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Dunst-Perrenet Gambit 1. Nc3 d5 2. e4 dxe4 3. d3 b1c3 d7d5 e2e4 d5e4 d2d3 rnbqkbnr/ppp1pppp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Düsseldorf Gambit 1. Nc3 c5 2. b4 b1c3 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P6/2N5/P1PPPPPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Gladbacher Gambit 1. Nc3 e5 2. b3 d5 3. e4 dxe4 4. d3 b1c3 e7e5 b2b3 d7d5 e2e4 d5e4 d2d3 rnbqkbnr/ppp2ppp/8/4p3/4p3/1PNP4/P1P2PPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Hector Gambit 1. Nc3 d5 2. e4 dxe4 3. Bc4 b1c3 d7d5 e2e4 d5e4 f1c4 rnbqkbnr/ppp1pppp/8/8/2B1p3/2N5/PPPP1PPP/R1BQK1NR b KQkq - +A00 Van Geet Opening: Hergert Gambit 1. Nc3 d6 2. f4 e5 3. fxe5 Nc6 b1c3 d7d6 f2f4 e7e5 f4e5 b8c6 r1bqkbnr/ppp2ppp/2np4/4P3/8/2N5/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Hulsemann Gambit 1. Nc3 e5 2. e3 d5 3. Qh5 Be6 b1c3 e7e5 e2e3 d7d5 d1h5 c8e6 rn1qkbnr/ppp2ppp/4b3/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq - +A00 Van Geet Opening: Jendrossek Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 f5 4. Nf2 Nf6 5. Nf3 c5 6. b4 b1c3 d7d5 f2f4 d5d4 c3e4 f7f5 e4f2 g8f6 g1f3 c7c5 b2b4 rnbqkb1r/pp2p1pp/5n2/2p2p2/1P1p1P2/5N2/P1PPPNPP/R1BQKB1R b KQkq - +A00 Van Geet Opening: Kluever Gambit 1. Nc3 f5 2. e4 fxe4 3. d3 b1c3 f7f5 e2e4 f5e4 d2d3 rnbqkbnr/ppppp1pp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq - +A00 Van Geet Opening: Laroche Gambit 1. Nc3 b5 b1c3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/2N5/PPPPPPPP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Liebig Gambit 1. Nc3 e5 2. e3 d5 3. Qh5 Nf6 b1c3 e7e5 e2e3 d7d5 d1h5 g8f6 rnbqkb1r/ppp2ppp/5n2/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq - +A00 Van Geet Opening: Melleby Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 c5 b1c3 d7d5 f2f4 d5d4 c3e4 c7c5 rnbqkbnr/pp2pppp/8/2p5/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Myers Attack 1. Nc3 g6 2. h4 b1c3 g7g6 h2h4 rnbqkbnr/pppppp1p/6p1/8/7P/2N5/PPPPPPP1/R1BQKBNR b KQkq - +A00 Van Geet Opening: Napoleon Attack 1. Nc3 e5 2. Nf3 Nc6 3. d4 b1c3 e7e5 g1f3 b8c6 d2d4 r1bqkbnr/pppp1ppp/2n5/4p3/3P4/2N2N2/PPP1PPPP/R1BQKB1R b KQkq - +A00 Van Geet Opening: Novosibirsk Variation 1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4 b1c3 c7c5 d2d4 c5d4 d1d4 b8c6 d4h4 r1bqkbnr/pp1ppppp/2n5/8/7Q/2N5/PPP1PPPP/R1B1KBNR b KQkq - +A00 Van Geet Opening: Pfeiffer Gambit 1. Nc3 d5 2. f4 d4 3. Ne4 e5 b1c3 d7d5 f2f4 d5d4 c3e4 e7e5 rnbqkbnr/ppp2ppp/8/4p3/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Pfeiffer Gambit, Sleipnir Countergambit 1. Nc3 d5 2. f4 d4 3. Ne4 e5 4. Nf3 b1c3 d7d5 f2f4 d5d4 c3e4 e7e5 g1f3 rnbqkbnr/ppp2ppp/8/4p3/3pNP2/5N2/PPPPP1PP/R1BQKB1R b KQkq - +A00 Van Geet Opening: Reversed Nimzowitsch 1. Nc3 e5 b1c3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Reversed Scandinavian 1. Nc3 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qa4 b1c3 e7e5 d2d4 e5d4 d1d4 b8c6 d4a4 r1bqkbnr/pppp1ppp/2n5/8/Q7/2N5/PPP1PPPP/R1B1KBNR b KQkq - +A00 Van Geet Opening: Sicilian Two Knights 1. Nc3 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 b1c3 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 r1bqkbnr/pp1ppppp/2n5/8/3N4/2N5/PPP1PPPP/R1BQKB1R b KQkq - +A00 Van Geet Opening: Sleipnir Gambit 1. Nc3 d5 2. e3 e5 3. d4 Bb4 b1c3 d7d5 e2e3 e7e5 d2d4 f8b4 rnbqk1nr/ppp2ppp/8/3pp3/1b1P4/2N1P3/PPP2PPP/R1BQKBNR w KQkq - +A00 Van Geet Opening: Twyble Attack 1. Nc3 c5 2. Rb1 b1c3 c7c5 a1b1 rnbqkbnr/pp1ppppp/8/2p5/8/2N5/PPPPPPPP/1RBQKBNR b Kkq - +A00 Van Geet Opening: Tübingen Gambit 1. Nc3 Nf6 2. g4 b1c3 g8f6 g2g4 rnbqkb1r/pppppppp/5n2/8/6P1/2N5/PPPPPP1P/R1BQKBNR b KQkq - +A00 Van Geet Opening: Venezolana Variation 1. Nc3 d5 2. d3 Nf6 3. g3 b1c3 d7d5 d2d3 g8f6 g2g3 rnbqkb1r/ppp1pppp/5n2/3p4/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq - +A00 Van Geet Opening: Warsteiner Gambit 1. Nc3 d5 2. f4 g5 b1c3 d7d5 f2f4 g7g5 rnbqkbnr/ppp1pp1p/8/3p2p1/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq - +A00 Van't Kruijs Opening 1. e3 e2e3 rnbqkbnr/pppppppp/8/8/8/4P3/PPPP1PPP/RNBQKBNR b KQkq - +A00 Van't Kruijs Opening: Bouncing Bishop Variation 1. e3 e5 2. Bc4 b5 3. Bb3 e2e3 e7e5 f1c4 b7b5 c4b3 rnbqkbnr/p1pp1ppp/8/1p2p3/8/1B2P3/PPPP1PPP/RNBQK1NR b KQkq - +A00 Van't Kruijs Opening: Keoni-Hiva Gambit Delayed 1. e3 d5 2. Nc3 Nf6 3. a3 e5 4. f4 exf4 5. Nf3 e2e3 d7d5 b1c3 g8f6 a2a3 e7e5 f2f4 e5f4 g1f3 rnbqkb1r/ppp2ppp/5n2/3p4/5p2/P1N1PN2/1PPP2PP/R1BQKB1R b KQkq - +A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Akahi Variation 1. e3 e5 2. Nc3 Nf6 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 g8f6 f2f4 e5f4 g1f3 rnbqkb1r/pppp1ppp/5n2/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - +A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Alua Variation 1. e3 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 r1bqkbnr/pppp1ppp/2n5/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - +A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Ekolu Variation 1. e3 e5 2. Nc3 d5 3. f4 exf4 4. Nf3 e2e3 e7e5 b1c3 d7d5 f2f4 e5f4 g1f3 rnbqkbnr/ppp2ppp/8/3p4/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - +A00 Venezolana Opening 1. d3 c5 2. Nc3 Nc6 3. g3 d2d3 c7c5 b1c3 b8c6 g2g3 r1bqkbnr/pp1ppppp/2n5/2p5/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq - +A00 Ware Opening 1. a4 a2a4 rnbqkbnr/pppppppp/8/8/P7/8/1PPPPPPP/RNBQKBNR b KQkq - +A00 Ware Opening: Cologne Gambit 1. a4 b6 2. d4 d5 3. Nc3 Nd7 a2a4 b7b6 d2d4 d7d5 b1c3 b8d7 r1bqkbnr/p1pnpppp/1p6/3p4/P2P4/2N5/1PP1PPPP/R1BQKBNR w KQkq - +A00 Ware Opening: Meadow Hay Trap 1. a4 e5 2. Ra3 a2a4 e7e5 a1a3 rnbqkbnr/pppp1ppp/8/4p3/P7/R7/1PPPPPPP/1NBQKBNR b Kkq - +A00 Ware Opening: Ware Gambit 1. a4 e5 2. a5 d5 3. e3 f5 4. a6 a2a4 e7e5 a4a5 d7d5 e2e3 f7f5 a5a6 rnbqkbnr/ppp3pp/P7/3ppp2/8/4P3/1PPP1PPP/RNBQKBNR b KQkq - +A00 Ware Opening: Wing Gambit 1. a4 b5 2. axb5 Bb7 a2a4 b7b5 a4b5 c8b7 rn1qkbnr/pbpppppp/8/1P6/8/8/1PPPPPPP/RNBQKBNR w KQkq - +A00 Zukertort Opening: Reversed Mexican Defense 1. Nc3 d5 2. Nf3 b1c3 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/8/2N2N2/PPPPPPPP/R1BQKB1R b KQkq - +A01 Nimzo-Larsen Attack 1. b3 b2b3 rnbqkbnr/pppppppp/8/8/8/1P6/P1PPPPPP/RNBQKBNR b KQkq - +A01 Nimzo-Larsen Attack: Classical Variation 1. b3 d5 b2b3 d7d5 rnbqkbnr/ppp1pppp/8/3p4/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Dutch Variation 1. b3 f5 b2b3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: English Variation 1. b3 c5 b2b3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Graz Attack 1. b3 d5 2. Ba3 b2b3 d7d5 c1a3 rnbqkbnr/ppp1pppp/8/3p4/8/BP6/P1PPPPPP/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Indian Variation 1. b3 Nf6 b2b3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 b2b3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 2. Bb2 Nc6 b2b3 e7e5 c1b2 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/8/1P6/PBPPPPPP/RN1QKBNR w KQkq - +A01 Nimzo-Larsen Attack: Modern Variation 1. b3 e5 2. Bb2 Nc6 3. e3 b2b3 e7e5 c1b2 b8c6 e2e3 r1bqkbnr/pppp1ppp/2n5/4p3/8/1P2P3/PBPP1PPP/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Pachman Gambit 1. b3 e5 2. Bb2 Nc6 3. f4 b2b3 e7e5 c1b2 b8c6 f2f4 r1bqkbnr/pppp1ppp/2n5/4p3/5P2/1P6/PBPPP1PP/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Polish Variation 1. b3 b5 b2b3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A01 Nimzo-Larsen Attack: Ringelbach Gambit 1. b3 f5 2. Bb2 e6 3. e4 b2b3 f7f5 c1b2 e7e6 e2e4 rnbqkbnr/pppp2pp/4p3/5p2/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Spike Variation 1. b3 Nf6 2. Bb2 g6 3. g4 b2b3 g8f6 c1b2 g7g6 g2g4 rnbqkb1r/pppppp1p/5np1/8/6P1/1P6/PBPPPP1P/RN1QKBNR b KQkq - +A01 Nimzo-Larsen Attack: Symmetrical Variation 1. b3 b6 b2b3 b7b6 rnbqkbnr/p1pppppp/1p6/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - +A02 Bird Opening 1. f4 f2f4 rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq - +A02 Bird Opening 1. f4 Nf6 f2f4 g8f6 rnbqkb1r/pppppppp/5n2/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Batavo-Polish Attack 1. f4 Nf6 2. Nf3 g6 3. b4 f2f4 g8f6 g1f3 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/1P3P2/5N2/P1PPP1PP/RNBQKB1R b KQkq - +A02 Bird Opening: From's Gambit 1. f4 e5 f2f4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: From's Gambit, Bahr Gambit 1. f4 e5 2. Nc3 f2f4 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/5P2/2N5/PPPPP1PP/R1BQKBNR b KQkq - +A02 Bird Opening: From's Gambit, Langheld Gambit 1. f4 e5 2. fxe5 d6 3. exd6 Nf6 f2f4 e7e5 f4e5 d7d6 e5d6 g8f6 rnbqkb1r/ppp2ppp/3P1n2/8/8/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: From's Gambit, Lasker Variation 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5 f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g7g5 rnbqk1nr/ppp2p1p/3b4/6p1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq - +A02 Bird Opening: From's Gambit, Lipke Variation 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4 f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g8h6 d2d4 rnbqk2r/ppp2ppp/3b3n/8/3P4/5N2/PPP1P1PP/RNBQKB1R b KQkq - +A02 Bird Opening: Hobbs Gambit 1. f4 g5 f2f4 g7g5 rnbqkbnr/pppppp1p/8/6p1/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Hobbs-Zilbermints Gambit 1. f4 h6 2. Nf3 g5 f2f4 h7h6 g1f3 g7g5 rnbqkbnr/pppppp2/7p/6p1/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq - +A02 Bird Opening: Horsefly Defense 1. f4 Nh6 f2f4 g8h6 rnbqkb1r/pppppppp/7n/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Lasker Gambit 1. f4 e5 2. fxe5 f6 f2f4 e7e5 f4e5 f7f6 rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Mujannah 1. f4 Nf6 2. c4 f2f4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq - +A02 Bird Opening: Myers Defense 1. f4 b5 f2f4 b7b5 rnbqkbnr/p1pppppp/8/1p6/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Platz Gambit 1. f4 e5 2. fxe5 Ne7 f2f4 e7e5 f4e5 g8e7 rnbqkb1r/ppppnppp/8/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Schlechter Gambit 1. f4 e5 2. fxe5 Nc6 f2f4 e7e5 f4e5 b8c6 r1bqkbnr/pppp1ppp/2n5/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - +A02 Bird Opening: Siegener Gambit 1. f4 e5 2. d4 exd4 3. Nf3 c5 4. c3 f2f4 e7e5 d2d4 e5d4 g1f3 c7c5 c2c3 rnbqkbnr/pp1p1ppp/8/2p5/3p1P2/2P2N2/PP2P1PP/RNBQKB1R b KQkq - +A02 Bird Opening: Swiss Gambit 1. f4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 f2f4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/8/4pPP1/2N5/PPPP3P/R1BQKBNR b KQkq - +A02 Bird Opening: Wagner-Zwitersch Gambit 1. f4 f5 2. e4 f2f4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +A02 System: Double Duck Formation 1. f4 f5 2. d4 d5 f2f4 f7f5 d2d4 d7d5 rnbqkbnr/ppp1p1pp/8/3p1p2/3P1P2/8/PPP1P1PP/RNBQKBNR w KQkq - +A03 Bird Opening: Dutch Variation 1. f4 d5 f2f4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - +A03 Bird Opening: Dutch Variation, Dudweiler Gambit 1. f4 d5 2. g4 f2f4 d7d5 g2g4 rnbqkbnr/ppp1pppp/8/3p4/5PP1/8/PPPPP2P/RNBQKBNR b KQkq - +A03 Bird Opening: Lasker Variation 1. f4 d5 2. Nf3 Nf6 3. e3 c5 f2f4 d7d5 g1f3 g8f6 e2e3 c7c5 rnbqkb1r/pp2pppp/5n2/2pp4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq - +A03 Bird Opening: Sturm Gambit 1. f4 d5 2. c4 f2f4 d7d5 c2c4 rnbqkbnr/ppp1pppp/8/3p4/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq - +A03 Bird Opening: Thomas Gambit 1. f4 d5 2. b3 Nf6 3. Bb2 d4 4. Nf3 c5 5. e3 f2f4 d7d5 b2b3 g8f6 c1b2 d5d4 g1f3 c7c5 e2e3 rnbqkb1r/pp2pppp/5n2/2p5/3p1P2/1P2PN2/PBPP2PP/RN1QKB1R b KQkq - +A03 Bird Opening: Williams Gambit 1. f4 d5 2. e4 f2f4 d7d5 e2e4 rnbqkbnr/ppp1pppp/8/3p4/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +A03 Bird Opening: Williams Gambit 1. f4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Qe2 f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 d1e2 rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPQ1PP/R1B1KBNR b KQkq - +A03 Bird Opening: Williams-Zilbermints Gambit 1. f4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Nge2 f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 g1e2 rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPN1PP/R1BQKB1R b KQkq - +A04 Colle System: Rhamphorhynchus Variation 1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+ g1f3 c7c5 e2e3 g7g6 d2d4 f8g7 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/8/4PN2/PPP2PPP/RNBQKB1R w KQkq - +A04 Modern Defense: Semi-Averbakh Variation, Polish Variation 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qb6 g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8b6 rnb1k1nr/pp1pppbp/1q4p1/2p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq - +A04 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+ g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq - +A04 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted 1. Nf3 g6 2. d4 Bg7 3. e4 d6 4. c4 c5 5. dxc5 Qa5+ g1f3 g7g6 d2d4 f8g7 e2e4 d7d6 c2c4 c7c5 d4c5 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/5N2/PP3PPP/RNBQKB1R w KQkq - +A04 Zukertort Opening 1. Nf3 g1f3 rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq - +A04 Zukertort Opening: Arctic Defense 1. Nf3 f6 g1f3 f7f6 rnbqkbnr/ppppp1pp/5p2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Arctic Defense, Drunken Knight Variation 1. Nf3 f6 2. e4 Nh6 3. d4 Nf7 g1f3 f7f6 e2e4 g8h6 d2d4 h6f7 rnbqkb1r/pppppnpp/5p2/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Basman Defense 1. Nf3 h6 g1f3 h7h6 rnbqkbnr/ppppppp1/7p/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Black Mustang Defense 1. Nf3 Nc6 g1f3 b8c6 r1bqkbnr/pppppppp/2n5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Drunken Cavalry Variation 1. Nf3 Na6 2. e4 Nh6 g1f3 b8a6 e2e4 g8h6 r1bqkb1r/pppppppp/n6n/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Dutch Variation 1. Nf3 f5 g1f3 f7f5 rnbqkbnr/ppppp1pp/8/5p2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Herrstrom Gambit 1. Nf3 g5 g1f3 g7g5 rnbqkbnr/pppppp1p/8/6p1/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Kingside Fianchetto 1. Nf3 g6 g1f3 g7g6 rnbqkbnr/pppppp1p/6p1/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Lisitsyn Gambit 1. Nf3 f5 2. e4 g1f3 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +A04 Zukertort Opening: Lisitsyn Gambit Deferred 1. Nf3 f5 2. d3 Nf6 3. e4 g1f3 f7f5 d2d3 g8f6 e2e4 rnbqkb1r/ppppp1pp/5n2/5p2/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq - +A04 Zukertort Opening: Pirc Invitation 1. Nf3 d6 g1f3 d7d6 rnbqkbnr/ppp1pppp/3p4/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Polish Defense 1. Nf3 b5 g1f3 b7b5 rnbqkbnr/p1pppppp/8/1p6/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Queen's Gambit Invitation 1. Nf3 e6 g1f3 e7e6 rnbqkbnr/pppp1ppp/4p3/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Queenside Fianchetto Variation 1. Nf3 b6 g1f3 b7b6 rnbqkbnr/p1pppppp/1p6/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Ross Gambit 1. Nf3 e5 g1f3 e7e5 rnbqkbnr/pppp1ppp/8/4p3/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Shabalov Gambit 1. Nf3 e6 2. c4 a6 3. Nc3 c5 4. g3 b5 g1f3 e7e6 c2c4 a7a6 b1c3 c7c5 g2g3 b7b5 rnbqkbnr/3p1ppp/p3p3/1pp5/2P5/2N2NP1/PP1PPP1P/R1BQKB1R w KQkq - +A04 Zukertort Opening: Sicilian Invitation 1. Nf3 c5 g1f3 c7c5 rnbqkbnr/pp1ppppp/8/2p5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Slav Invitation 1. Nf3 c6 g1f3 c7c6 rnbqkbnr/pp1ppppp/2p5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Speelsmet Gambit 1. Nf3 c5 2. d4 cxd4 3. e3 g1f3 c7c5 d2d4 c5d4 e2e3 rnbqkbnr/pp1ppppp/8/8/3p4/4PN2/PPP2PPP/RNBQKB1R b KQkq - +A04 Zukertort Opening: St. George Defense 1. Nf3 a6 g1f3 a7a6 rnbqkbnr/1ppppppp/p7/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: The Walrus 1. Nf3 e5 2. Nxe5 Nc6 3. Nxc6 dxc6 g1f3 e7e5 f3e5 b8c6 e5c6 d7c6 r1bqkbnr/ppp2ppp/2p5/8/8/8/PPPPPPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Vos Gambit 1. Nf3 d6 2. d4 e5 g1f3 d7d6 d2d4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Wade Defense 1. Nf3 d6 2. e4 Bg4 g1f3 d7d6 e2e4 c8g4 rn1qkbnr/ppp1pppp/3p4/8/4P1b1/5N2/PPPP1PPP/RNBQKB1R w KQkq - +A04 Zukertort Opening: Ware Defense 1. Nf3 a5 g1f3 a7a5 rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A05 King's Indian Attack 1. Nf3 Nf6 2. g3 d5 g1f3 g8f6 g2g3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A05 King's Indian Attack: Smyslov Variation 1. Nf3 Nf6 2. g3 g6 3. b4 g1f3 g8f6 g2g3 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/1P6/5NP1/P1PPPP1P/RNBQKB1R b KQkq - +A05 King's Indian Attack: Spassky Variation 1. Nf3 Nf6 2. g3 b5 g1f3 g8f6 g2g3 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A05 King's Indian Attack: Symmetrical Defense 1. Nf3 Nf6 2. g3 g6 g1f3 g8f6 g2g3 g7g6 rnbqkb1r/pppppp1p/5np1/8/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A05 King's Indian Attack: Wahls Defense 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d5 g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d3 d7d5 rnbq1rk1/ppp1ppbp/5np1/3p4/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w - - +A05 Polish Opening: Zukertort System 1. Nf3 Nf6 2. b4 g1f3 g8f6 b2b4 rnbqkb1r/pppppppp/5n2/8/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq - +A05 Zukertort Opening 1. Nf3 Nf6 g1f3 g8f6 rnbqkb1r/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A05 Zukertort Opening 1. Nf3 Nf6 2. Nc3 Nc6 g1f3 g8f6 b1c3 b8c6 r1bqkb1r/pppppppp/2n2n2/8/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - +A05 Zukertort Opening: Double Fianchetto Attack 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 O-O 5. Bg2 d6 6. O-O g1f3 g8f6 g2g3 g7g6 b2b3 f8g7 c1b2 e8g8 f1g2 d7d6 e1g1 rnbq1rk1/ppp1ppbp/3p1np1/8/8/1P3NP1/PBPPPPBP/RN1Q1RK1 b - - +A05 Zukertort Opening: Lemberger Gambit 1. Nf3 Nf6 2. e4 g1f3 g8f6 e2e4 rnbqkb1r/pppppppp/5n2/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +A05 Zukertort Opening: Myers Polish Attack 1. Nf3 Nf6 2. a4 g6 3. b4 g1f3 g8f6 a2a4 g7g6 b2b4 rnbqkb1r/pppppp1p/5np1/8/PP6/5N2/2PPPPPP/RNBQKB1R b KQkq - +A05 Zukertort Opening: Nimzo-Larsen Variation 1. Nf3 Nf6 2. b3 g1f3 g8f6 b2b3 rnbqkb1r/pppppppp/5n2/8/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq - +A05 Zukertort Opening: Quiet System 1. Nf3 Nf6 2. e3 g1f3 g8f6 e2e3 rnbqkb1r/pppppppp/5n2/8/8/4PN2/PPPP1PPP/RNBQKB1R b KQkq - +A06 Nimzo-Larsen Attack: Classical Variation 1. Nf3 d5 2. b3 g1f3 d7d5 b2b3 rnbqkbnr/ppp1pppp/8/3p4/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq - +A06 Nimzo-Larsen Attack: Norfolk Gambit 1. Nf3 d5 2. b3 c5 3. e4 g1f3 d7d5 b2b3 c7c5 e2e4 rnbqkbnr/pp2pppp/8/2pp4/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq - +A06 Nimzo-Larsen Attack: Norfolk Gambit 1. Nf3 d5 2. b3 Nf6 3. Bb2 c5 4. e4 g1f3 d7d5 b2b3 g8f6 c1b2 c7c5 e2e4 rnbqkb1r/pp2pppp/5n2/2pp4/4P3/1P3N2/PBPP1PPP/RN1QKB1R b KQkq - +A06 Zukertort Opening 1. Nf3 d5 g1f3 d7d5 rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - +A06 Zukertort Opening: Ampel Variation 1. Nf3 d5 2. Rg1 g1f3 d7d5 h1g1 rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKBR1 b Qkq - +A06 Zukertort Opening: Old Indian Attack 1. Nf3 d5 2. d3 g1f3 d7d5 d2d3 rnbqkbnr/ppp1pppp/8/3p4/8/3P1N2/PPP1PPPP/RNBQKB1R b KQkq - +A06 Zukertort Opening: Pachman Gambit 1. Nf3 d5 2. e3 c5 3. c4 dxc4 4. b3 g1f3 d7d5 e2e3 c7c5 c2c4 d5c4 b2b3 rnbqkbnr/pp2pppp/8/2p5/2p5/1P2PN2/P2P1PPP/RNBQKB1R b KQkq - +A06 Zukertort Opening: Regina-Nu Gambit 1. Nf3 d5 2. b3 c5 3. c4 dxc4 4. Nc3 g1f3 d7d5 b2b3 c7c5 c2c4 d5c4 b1c3 rnbqkbnr/pp2pppp/8/2p5/2p5/1PN2N2/P2PPPPP/R1BQKB1R b KQkq - +A06 Zukertort Opening: Santasiere's Folly 1. b4 d5 2. Nf3 b2b4 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq - +A06 Zukertort Opening: Tennison Gambit 1. e4 d5 2. Nf3 e2e4 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +A06 Zukertort Opening: The Potato 1. Nf3 d5 2. a4 g1f3 d7d5 a2a4 rnbqkbnr/ppp1pppp/8/3p4/P7/5N2/1PPPPPPP/RNBQKB1R b KQkq - +A07 English Opening: Anglo-Indian Defense, Grünfeld Formation 1. g3 d5 2. Nf3 g6 3. c4 Nf6 g2g3 d7d5 g1f3 g7g6 c2c4 g8f6 rnbqkb1r/ppp1pp1p/5np1/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A07 Hungarian Opening: Wiedenhagen-Beta Gambit 1. g3 d5 2. Nf3 g5 g2g3 d7d5 g1f3 g7g5 rnbqkbnr/ppp1pp1p/8/3p2p1/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack 1. Nf3 d5 2. g3 g1f3 d7d5 g2g3 rnbqkbnr/ppp1pppp/8/3p4/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq - +A07 King's Indian Attack: Double Fianchetto 1. Nf3 d5 2. g3 g6 g1f3 d7d5 g2g3 g7g6 rnbqkbnr/ppp1pp1p/6p1/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack: Keres Variation 1. Nf3 d5 2. g3 Bg4 g1f3 d7d5 g2g3 c8g4 rn1qkbnr/ppp1pppp/8/3p4/6b1/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack: Keres Variation 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 g1f3 d7d5 g2g3 c8g4 f1g2 b8d7 r2qkbnr/pppnpppp/8/3p4/6b1/5NP1/PPPPPPBP/RNBQK2R w KQkq - +A07 King's Indian Attack: Omega-Delta Gambit 1. Nf3 d5 2. g3 e5 g1f3 d7d5 g2g3 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack: Pachman System 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 g1f3 d7d5 g2g3 g7g6 f1g2 f8g7 e1g1 e7e5 d2d3 g8e7 rnbqk2r/ppp1npbp/6p1/3pp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq - +A07 King's Indian Attack: Sicilian Variation 1. Nf3 d5 2. g3 c5 g1f3 d7d5 g2g3 c7c5 rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - +A07 King's Indian Attack: Yugoslav Variation 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bg4 g1f3 g8f6 g2g3 d7d5 f1g2 c7c6 e1g1 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/6b1/5NP1/PPPPPPBP/RNBQ1RK1 w kq - +A08 King's Indian Attack: French Variation 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 r1bqkbnr/pp2pppp/2n5/2pp4/8/5NP1/PPPPPPBP/RNBQK2R w KQkq - +A08 King's Indian Attack: Sicilian Variation 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. Re1 e2e4 e7e6 d2d3 d7d5 b1d2 g8f6 g1f3 c7c5 g2g3 b8c6 f1g2 f8e7 e1g1 e8g8 f1e1 r1bq1rk1/pp2bppp/2n1pn2/2pp4/4P3/3P1NP1/PPPN1PBP/R1BQR1K1 b - - +A08 King's Indian Attack: Sicilian Variation 1. Nf3 d5 2. g3 c5 3. Bg2 g1f3 d7d5 g2g3 c7c5 f1g2 rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPPBP/RNBQK2R b KQkq - +A08 Zukertort Opening: Grünfeld Reversed 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. O-O g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 d2d4 e7e6 e1g1 r1bqkbnr/pp3ppp/2n1p3/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 b kq - +A09 Réti Opening 1. Nf3 d5 2. c4 g1f3 d7d5 c2c4 rnbqkbnr/ppp1pppp/8/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A09 Réti Opening: Advance Variation 1. Nf3 d5 2. c4 d4 g1f3 d7d5 c2c4 d5d4 rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A09 Réti Opening: Advance Variation, Michel Gambit 1. Nf3 d5 2. c4 d4 3. b4 c5 g1f3 d7d5 c2c4 d5d4 b2b4 c7c5 rnbqkbnr/pp2pppp/8/2p5/1PPp4/5N2/P2PPPPP/RNBQKB1R w KQkq - +A09 Réti Opening: Penguin Variation 1. Nf3 d5 2. c4 d4 3. Rg1 g1f3 d7d5 c2c4 d5d4 h1g1 rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKBR1 b Qkq - +A09 Réti Opening: Reversed Blumenfeld Gambit 1. Nf3 d5 2. c4 d4 3. e3 c5 4. b4 g1f3 d7d5 c2c4 d5d4 e2e3 c7c5 b2b4 rnbqkbnr/pp2pppp/8/2p5/1PPp4/4PN2/P2P1PPP/RNBQKB1R b KQkq - +A09 Réti Opening: Réti Accepted 1. Nf3 d5 2. c4 dxc4 g1f3 d7d5 c2c4 d5c4 rnbqkbnr/ppp1pppp/8/8/2p5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A09 Réti Opening: Réti Gambit, Keres Variation 1. Nf3 d5 2. c4 dxc4 3. e3 Be6 g1f3 d7d5 c2c4 d5c4 e2e3 c8e6 rn1qkbnr/ppp1pppp/4b3/8/2p5/4PN2/PP1P1PPP/RNBQKB1R w KQkq - +A09 Réti Opening: Zilbermints Gambit 1. Nf3 d5 2. c4 b5 g1f3 d7d5 c2c4 b7b5 rnbqkbnr/p1p1pppp/8/1p1p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A10 Dutch Defense: Krause Variation 1. c4 f5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 d6 c2c4 f7f5 b1c3 g8f6 g1f3 b8c6 d2d4 d7d6 r1bqkb1r/ppp1p1pp/2np1n2/5p2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +A10 English Opening 1. c4 c2c4 rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq - +A10 English Opening: Adorjan Defense 1. c4 g6 2. e4 e5 c2c4 g7g6 e2e4 e7e5 rnbqkbnr/pppp1p1p/6p1/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Dutch Defense 1. c4 f5 c2c4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Dutch Defense, Hickmann Gambit 1. c4 f5 2. e4 c2c4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +A10 English Opening: Anglo-Dutch Variation, Chabanon Gambit 1. c4 f5 2. Nf3 d6 3. e4 c2c4 f7f5 g1f3 d7d6 e2e4 rnbqkbnr/ppp1p1pp/3p4/5p2/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +A10 English Opening: Anglo-Dutch Variation, Ferenc Gambit 1. c4 f5 2. Nc3 Nf6 3. e4 c2c4 f7f5 b1c3 g8f6 e2e4 rnbqkb1r/ppppp1pp/5n2/5p2/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq - +A10 English Opening: Anglo-Lithuanian Variation 1. c4 Nc6 c2c4 b8c6 r1bqkbnr/pppppppp/2n5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Scandinavian Defense 1. c4 d5 c2c4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Scandinavian Defense, Löhn Gambit 1. c4 d5 2. cxd5 e6 c2c4 d7d5 c4d5 e7e6 rnbqkbnr/ppp2ppp/4p3/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Anglo-Scandinavian Defense, Malvinas Variation 1. c4 d5 2. cxd5 Qxd5 3. Nc3 Qa5 c2c4 d7d5 c4d5 d8d5 b1c3 d5a5 rnb1kbnr/ppp1pppp/8/q7/8/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A10 English Opening: Anglo-Scandinavian Defense, Schulz Gambit 1. c4 d5 2. cxd5 Nf6 c2c4 d7d5 c4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Great Snake Variation 1. c4 g6 c2c4 g7g6 rnbqkbnr/pppppp1p/6p1/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: Jaenisch Gambit 1. c4 b5 c2c4 b7b5 rnbqkbnr/p1pppppp/8/1p6/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A10 English Opening: King's English Variation, Botvinnik System, Prickly Pawn Pass System 1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. e4 d6 6. Nge2 e5 7. O-O c6 8. d3 a6 c2c4 g7g6 b1c3 f8g7 g2g3 g8f6 f1g2 e8g8 e2e4 d7d6 g1e2 e7e5 e1g1 c7c6 d2d3 a7a6 rnbq1rk1/1p3pbp/p1pp1np1/4p3/2P1P3/2NP2P1/PP2NPBP/R1BQ1RK1 w - - +A10 English Opening: Myers Variation 1. c4 g5 2. d4 Bg7 c2c4 g7g5 d2d4 f8g7 rnbqk1nr/ppppppbp/8/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A10 English Opening: Porcupine Variation 1. c4 f5 2. Nc3 Nf6 3. e4 fxe4 4. g4 c2c4 f7f5 b1c3 g8f6 e2e4 f5e4 g2g4 rnbqkb1r/ppppp1pp/5n2/8/2P1p1P1/2N5/PP1P1P1P/R1BQKBNR b KQkq - +A10 English Opening: Wade Gambit 1. c4 f5 2. g4 c2c4 f7f5 g2g4 rnbqkbnr/ppppp1pp/8/5p2/2P3P1/8/PP1PPP1P/RNBQKBNR b KQkq - +A10 English Opening: Zilbermints Gambit 1. c4 g5 2. d4 e5 c2c4 g7g5 d2d4 e7e5 rnbqkbnr/pppp1p1p/8/4p1p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A10 King's Indian Defense: Semi-Classical Variation, Exchange Variation 1. c4 g6 2. Nc3 Bg7 3. e3 Nf6 4. d4 O-O 5. Nf3 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 c2c4 g7g6 b1c3 f8g7 e2e3 g8f6 d2d4 e8g8 g1f3 d7d6 f1e2 b8d7 e1g1 e7e5 d4e5 d6e5 r1bq1rk1/pppn1pbp/5np1/4p3/2P5/2N1PN2/PP2BPPP/R1BQ1RK1 w - - +A10 Modern Defense: Averbakh Variation, Pseudo-Sämisch 1. c4 g6 2. e4 Bg7 3. d4 d6 4. Be3 Nf6 5. f3 c2c4 g7g6 e2e4 f8g7 d2d4 d7d6 c1e3 g8f6 f2f3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/4BP2/PP4PP/RN1QKBNR b KQkq - +A10 Modern Defense: Neo-Modern Defense 1. c4 g6 2. e4 Bg7 3. d4 e5 c2c4 g7g6 e2e4 f8g7 d2d4 e7e5 rnbqk1nr/pppp1pbp/6p1/4p3/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - +A11 English Opening: Caro-Kann Defensive System 1. c4 c6 c2c4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A12 Réti Opening: Anglo-Slav Variation, Bled Variation 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. c4 c6 g1f3 d7d5 b2b3 g8f6 c1b2 g7g6 c2c4 c7c6 rnbqkb1r/pp2pp1p/2p2np1/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 d5 2. c4 c6 3. b3 g1f3 d7d5 c2c4 c7c6 b2b3 rnbqkbnr/pp2pppp/2p5/3p4/2P5/1P3N2/P2PPPPP/RNBQKB1R b KQkq - +A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 d5 2. c4 c6 3. b3 Bg4 g1f3 d7d5 c2c4 c7c6 b2b3 c8g4 rn1qkbnr/pp2pppp/2p5/3p4/2P3b1/1P3N2/P2PPPPP/RNBQKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2 rnbqkb1r/pp2pppp/2p2n2/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R b KQkq - +A12 Réti Opening: Anglo-Slav Variation, Capablanca Variation 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bg4 c2c4 g8f6 g1f3 c7c6 b2b3 d7d5 c1b2 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, London Defensive System 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8f5 rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3NP1/P2PPP1P/RNBQKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, New York System 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2 c8f5 rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - +A12 Réti Opening: Anglo-Slav Variation, Torre System 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bg4 c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3NP1/P2PPP1P/RNBQKB1R w KQkq - +A13 English Opening: Agincourt Defense 1. c4 e6 c2c4 e7e6 rnbqkbnr/pppp1ppp/4p3/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A13 English Opening: Agincourt Defense 1. c4 e6 2. Nf3 c2c4 e7e6 g1f3 rnbqkbnr/pppp1ppp/4p3/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A13 English Opening: Agincourt Defense 1. c4 e6 2. Nf3 d5 c2c4 e7e6 g1f3 d7d5 rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A13 English Opening: Agincourt Defense, Bogoljubov Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bd6 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8d6 rnbqk2r/ppp2ppp/3bpn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 English Opening: Agincourt Defense, Catalan Defense 1. Nf3 d5 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O g1f3 d7d5 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 rn1qkbnr/pbp2ppp/1p2p3/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq - +A13 English Opening: Agincourt Defense, Catalan Defense 1. Nf3 d5 2. c4 e6 3. g3 c5 g1f3 d7d5 c2c4 e7e6 g2g3 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A13 English Opening: Agincourt Defense, Catalan Defense Accepted 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 rnbqkb1r/ppp2ppp/4pn2/8/2p5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 c7c6 rnbqkb1r/pp3ppp/2p1pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 English Opening: Agincourt Defense, Kurajica Defense 1. Nf3 d5 2. c4 e6 3. g3 c6 g1f3 d7d5 c2c4 e7e6 g2g3 c7c6 rnbqkbnr/pp3ppp/2p1p3/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A13 English Opening: Agincourt Defense, Tarrasch Defense 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. b3 c5 5. Bg2 Nc6 6. O-O Be7 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 b2b3 c7c5 f1g2 b8c6 e1g1 f8e7 r1bqk2r/pp2bppp/2n1pn2/2pp4/2P5/1P3NP1/P2PPPBP/RNBQ1RK1 w kq - +A13 English Opening: Agincourt Defense, Wimpy System 1. Nf3 Nf6 2. c4 e6 3. b3 d5 4. Bb2 c5 5. e3 g1f3 g8f6 c2c4 e7e6 b2b3 d7d5 c1b2 c7c5 e2e3 rnbqkb1r/pp3ppp/4pn2/2pp4/2P5/1P2PN2/PB1P1PPP/RN1QKB1R b KQkq - +A13 English Opening: Neo-Catalan 1. Nf3 Nf6 2. c4 e6 3. g3 d5 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 rnbqkb1r/ppp2ppp/4pn2/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A13 English Opening: Neo-Catalan Declined 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 English Opening: Romanishin Gambit 1. Nf3 Nf6 2. c4 e6 3. g3 a6 4. Bg2 b5 g1f3 g8f6 c2c4 e7e6 g2g3 a7a6 f1g2 b7b5 rnbqkb1r/2pp1ppp/p3pn2/1p6/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A13 Horwitz Defense: Zilbermints Gambit 1. c4 e6 2. d4 e5 c2c4 e7e6 d2d4 e6e5 rnbqkbnr/pppp1ppp/8/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A14 English Opening: Agincourt Defense, Keres Defense 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nc6 7. O-O Be7 c2c4 c7c5 g1f3 g8f6 b1c3 e7e6 g2g3 d7d5 c4d5 f6d5 f1g2 b8c6 e1g1 f8e7 r1bqk2r/pp2bppp/2n1p3/2pn4/8/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq - +A14 English Opening: Agincourt Defense, Neo-Catalan Declined 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 e1g1 rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq - +A14 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation, Stonewall Line 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c6 7. Bb2 g1f3 d7d5 c2c4 e7e6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 b2b3 c7c6 c1b2 rnbq1rk1/pp2bppp/2p1pn2/3p4/2P5/1P3NP1/PB1PPPBP/RN1Q1RK1 b - - +A15 English Opening: Anglo-Indian Defense 1. c4 Nf6 c2c4 g8f6 rnbqkb1r/pppppppp/5n2/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A15 English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 rnbqk2r/ppppppbp/5np1/8/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq - +A15 English Opening: Anglo-Indian Defense, King's Indian Formation 1. Nf3 Nf6 2. c4 g6 g1f3 g8f6 c2c4 g7g6 rnbqkb1r/pppppp1p/5np1/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 g1f3 g8f6 c2c4 b7b6 g2g3 c8b7 f1g2 g7g6 rn1qkb1r/pbpppp1p/1p3np1/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A15 English Opening: Anglo-Indian Defense, King's Knight Variation 1. Nf3 Nf6 2. c4 g1f3 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A15 English Opening: Anglo-Indian Defense, Old Indian Formation 1. Nf3 Nf6 2. c4 d6 g1f3 g8f6 c2c4 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. Nf3 Nf6 2. c4 b6 g1f3 g8f6 c2c4 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 g1f3 g8f6 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 rn1qkb1r/pbpp1ppp/1p2pn2/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - +A15 English Opening: Anglo-Indian Defense, Romanishin Variation 1. Nf3 Nf6 2. c4 e6 3. g3 a6 g1f3 g8f6 c2c4 e7e6 g2g3 a7a6 rnbqkb1r/1ppp1ppp/p3pn2/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Scandinavian Defense 1. Nf3 Nf6 2. c4 d5 g1f3 g8f6 c2c4 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Scandinavian Defense, Exchange Variation 1. Nf3 Nf6 2. c4 d5 3. cxd5 Nxd5 g1f3 g8f6 c2c4 d7d5 c4d5 f6d5 rnbqkb1r/ppp1pppp/8/3n4/8/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A15 English Opening: Anglo-Indian Defense, Slav Formation 1. Nf3 Nf6 2. c4 g6 3. g3 c6 g1f3 g8f6 c2c4 g7g6 g2g3 c7c6 rnbqkb1r/pp1ppp1p/2p2np1/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - +A15 English Orangutan 1. c4 Nf6 2. b4 c2c4 g8f6 b2b4 rnbqkb1r/pppppppp/5n2/8/1PP5/8/P2PPPPP/RNBQKBNR b KQkq - +A15 Polish Opening: King's Indian Variation, Sokolsky Attack 1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 O-O 5. e3 d6 6. d4 g1f3 g8f6 c2c4 g7g6 b2b4 f8g7 c1b2 e8g8 e2e3 d7d6 d2d4 rnbq1rk1/ppp1ppbp/3p1np1/8/1PPP4/4PN2/PB3PPP/RN1QKB1R b KQ - +A16 English Opening: Anglo-Grünfeld Defense 1. c4 Nf6 2. Nc3 d5 c2c4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A16 English Opening: Anglo-Grünfeld Defense, Korchnoi Variation 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Bg7 6. Bg2 e5 g1f3 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 g2g3 f8g7 f1g2 e7e5 rnbqk2r/ppp2pbp/6p1/3np3/8/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - +A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g1f3 rnbqkb1r/ppp1pppp/8/3n4/8/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - +A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5b6 rnbqkb1r/ppp1pp1p/1n4p1/8/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5c3 rnbqkb1r/ppp1pp1p/6p1/8/8/2n3P1/PP1PPPBP/R1BQK1NR w KQkq - +A16 English Opening: Anglo-Indian Defense, Queen's Knight Variation 1. c4 Nf6 2. Nc3 c2c4 g8f6 b1c3 rnbqkb1r/pppppppp/5n2/8/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - +A17 English Opening: Anglo-Indian Defense, Hedgehog System 1. c4 Nf6 2. Nc3 e6 c2c4 g8f6 b1c3 e7e6 rnbqkb1r/pppp1ppp/4pn2/8/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A17 English Opening: Anglo-Indian Defense, Nimzo-English 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 g1f3 g8f6 c2c4 e7e6 b1c3 f8b4 rnbqk2r/pppp1ppp/4pn2/8/1bP5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A17 English Opening: Anglo-Indian Defense, Queen's Indian Formation 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 rnbqkb1r/p1pp1ppp/1p2pn2/8/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A17 English Opening: Anglo-Indian Defense, Queen's Indian Variation 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. e4 Bb7 5. Bd3 c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 e2e4 c8b7 f1d3 rn1qkb1r/pbpp1ppp/1p2pn2/8/2P1P3/2NB1N2/PP1P1PPP/R1BQK2R b KQkq - +A17 English Opening: Anglo-Indian Defense, Zvjaginsev-Krasenkow Attack 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. g4 c2c4 g8f6 b1c3 e7e6 g1f3 f8b4 g2g4 rnbqk2r/pppp1ppp/4pn2/8/1bP3P1/2N2N2/PP1PPP1P/R1BQKB1R b KQkq - +A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 c2c4 g8f6 b1c3 e7e6 e2e4 rnbqkb1r/pppp1ppp/4pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq - +A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 Nc6 c2c4 g8f6 b1c3 e7e6 e2e4 b8c6 r1bqkb1r/pppp1ppp/2n1pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq - +A18 English Opening: Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 c2c4 g8f6 b1c3 e7e6 e2e4 d7d5 e4e5 rnbqkb1r/ppp2ppp/4pn2/3pP3/2P5/2N5/PP1P1PPP/R1BQKBNR b KQkq - +A19 English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit 1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. e5 Ng8 c2c4 g8f6 b1c3 e7e6 e2e4 c7c5 e4e5 f6g8 rnbqkbnr/pp1p1ppp/4p3/2p1P3/2P5/2N5/PP1P1PPP/R1BQKBNR w KQkq - +A19 English Opening: Mikenas-Carls, Sicilian 1. c4 Nf6 2. Nc3 e6 3. e4 c5 c2c4 g8f6 b1c3 e7e6 e2e4 c7c5 rnbqkb1r/pp1p1ppp/4pn2/2p5/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq - +A20 English Opening: Drill Variation 1. c4 e5 2. g3 h5 c2c4 e7e5 g2g3 h7h5 rnbqkbnr/pppp1pp1/8/4p2p/2P5/6P1/PP1PPP1P/RNBQKBNR w KQkq - +A20 English Opening: King's English Variation 1. c4 e5 c2c4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A20 English Opening: King's English Variation, Kahiko-Hula Gambit 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3 c2c4 e7e5 e2e3 g8f6 f2f4 e5f4 g1f3 rnbqkb1r/pppp1ppp/5n2/8/2P2p2/4PN2/PP1P2PP/RNBQKB1R b KQkq - +A20 English Opening: King's English Variation, Nimzowitsch Variation 1. c4 e5 2. Nf3 c2c4 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A20 English Opening: King's English Variation, Nimzowitsch-Flohr Variation 1. c4 e5 2. Nf3 e4 c2c4 e7e5 g1f3 e5e4 rnbqkbnr/pppp1ppp/8/8/2P1p3/5N2/PP1PPPPP/RNBQKB1R w KQkq - +A21 English Opening: King's English Variation 1. c4 e5 2. Nc3 d6 3. Nf3 c2c4 e7e5 b1c3 d7d6 g1f3 rnbqkbnr/ppp2ppp/3p4/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - +A21 English Opening: King's English Variation, Keres Defense 1. c4 e5 2. Nc3 d6 3. g3 c6 c2c4 e7e5 b1c3 d7d6 g2g3 c7c6 rnbqkbnr/pp3ppp/2pp4/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A21 English Opening: King's English Variation, Kramnik-Shirov Counterattack 1. c4 e5 2. Nc3 Bb4 c2c4 e7e5 b1c3 f8b4 rnbqk1nr/pppp1ppp/8/4p3/1bP5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A21 English Opening: King's English Variation, Reversed Sicilian 1. c4 e5 2. Nc3 c2c4 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - +A21 English Opening: King's English Variation, Smyslov Defense 1. c4 e5 2. Nc3 d6 3. Nf3 Bg4 c2c4 e7e5 b1c3 d7d6 g1f3 c8g4 rn1qkbnr/ppp2ppp/3p4/4p3/2P3b1/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A21 English Opening: King's English Variation, Troger Defense 1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6 c2c4 e7e5 b1c3 b8c6 g2g3 d7d6 f1g2 c8e6 r2qkbnr/ppp2ppp/2npb3/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A22 English Opening: Carls-Bremen System 1. c4 e5 2. Nc3 Nf6 3. g3 c2c4 e7e5 b1c3 g8f6 g2g3 rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - +A22 English Opening: King's English Variation, Bellon Gambit 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 b5 c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 b7b5 rnbqkb1r/p1pp1ppp/5n2/1p4N1/2P1p3/2N5/PP1PPPPP/R1BQKB1R w KQkq - +A22 English Opening: King's English Variation, Two Knights Variation 1. c4 e5 2. Nc3 Nf6 c2c4 e7e5 b1c3 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A22 English Opening: King's English Variation, Two Knights Variation, Reversed Dragon 1. c4 e5 2. Nc3 Nf6 3. g3 d5 c2c4 e7e5 b1c3 g8f6 g2g3 d7d5 rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A22 English Opening: King's English Variation, Two Knights Variation, Smyslov System 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 c2c4 e7e5 b1c3 g8f6 g2g3 f8b4 rnbqk2r/pppp1ppp/5n2/4p3/1bP5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A22 English Opening: King's English, Erbenheimer Gambit 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 Ng4 c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 f6g4 rnbqkb1r/pppp1ppp/8/6N1/2P1p1n1/2N5/PP1PPPPP/R1BQKB1R w KQkq - +A22 English Opening: King's English, Mazedonisch 1. c4 e5 2. Nc3 Nf6 3. f4 c2c4 e7e5 b1c3 g8f6 f2f4 rnbqkb1r/pppp1ppp/5n2/4p3/2P2P2/2N5/PP1PP1PP/R1BQKBNR b KQkq - +A23 English Opening: King's English Variation, Two Knights Variation, Keres Variation 1. c4 e5 2. Nc3 Nf6 3. g3 c6 c2c4 e7e5 b1c3 g8f6 g2g3 c7c6 rnbqkb1r/pp1p1ppp/2p2n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A24 English Opening: King's English Variation, Two Knights Variation, Fianchetto Line 1. c4 e5 2. Nc3 Nf6 3. g3 g6 c2c4 e7e5 b1c3 g8f6 g2g3 g7g6 rnbqkb1r/pppp1p1p/5np1/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - +A25 English Opening: Closed, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Rb1 Nh6 5. Bg2 Bg7 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 a1b1 g8h6 f1g2 f8g7 r1bqk2r/pppp1pbp/2n3pn/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR w Kkq - +A25 English Opening: Closed, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Nh6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 g8h6 r1bqk2r/ppp2pbp/2np2pn/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq - +A25 English Opening: King's English Variation, Bremen-Hort Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Be6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 c8e6 r2qk1nr/ppp2pbp/2npb1p1/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq - +A25 English Opening: King's English Variation, Closed System 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR b KQkq - +A25 English Opening: King's English Variation, Hungarian Attack 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 a1b1 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR b Kkq - +A25 English Opening: King's English Variation, Reversed Closed Sicilian 1. c4 e5 2. Nc3 Nc6 c2c4 e7e5 b1c3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A25 English Opening: King's English Variation, Taimanov Variation 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A26 English Opening: King's English Variation, Botvinnik System 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 e2e4 r1bqk1nr/ppp2pbp/2np2p1/4p3/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq - +A26 English Opening: King's English Variation, Closed System, Full Symmetry 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 r1bqk1nr/ppp2pbp/2np2p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQkq - +A27 English Opening: King's English Variation, Three Knights System 1. c4 e5 2. Nc3 Nc6 3. Nf3 c2c4 e7e5 b1c3 b8c6 g1f3 r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - +A28 English Opening: Four Knights System, Nimzowitsch Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e4 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq - +A28 English Opening: King's English Variation, Four Knights Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A28 English Opening: King's English Variation, Four Knights Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5d4 f3d4 f8b4 c1g5 h7h6 g5h4 b4c3 b2c3 c6e5 r1bqk2r/pppp1pp1/5n1p/4n3/2PN3B/2P5/P3PPPP/R2QKB1R w KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Bradley Beach Variation 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 e4 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5e4 r1bqkb1r/pppp1ppp/2n2n2/8/2PPp3/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Flexible Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2NP1N2/PP2PPPP/R1BQKB1R b KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Korchnoi Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. a3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 a2a3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/P1N2N2/1P1PPPPP/R1BQKB1R b KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N1PN2/PP1P1PPP/R1BQKB1R b KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 b4c3 r1bqk2r/pppp1ppp/2n2n2/4p3/2P5/2b1PN2/PPQP1PPP/R1B1KB1R w KQkq - +A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Qf5 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 e8g8 c3d5 f8e8 c2f5 r1bqr1k1/pppp1ppp/2n2n2/3NpQ2/1bP5/4PN2/PP1P1PPP/R1B1KB1R b KQ - +A29 English Opening: King's English Variation, Four Knights Variation, Fianchetto Line 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 g2g3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2NP1/PP1PPP1P/R1BQKB1R b KQkq - +A30 English Opening: Symmetrical Variation 1. c4 c5 c2c4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - +A30 English Opening: Symmetrical Variation 1. c4 c5 2. Nf3 c2c4 c7c5 g1f3 rnbqkbnr/pp1ppppp/8/2p5/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - +A30 English Opening: Symmetrical Variation, Hedgehog Defense 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 g1f3 g8f6 c2c4 c7c5 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 rn1qk2r/pb1pbppp/1p2pn2/2p5/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq - +A30 English Opening: Symmetrical Variation, Napolitano Gambit 1. c4 c5 2. Nf3 Nf6 3. b4 c2c4 c7c5 g1f3 g8f6 b2b4 rnbqkb1r/pp1ppppp/5n2/2p5/1PP5/5N2/P2PPPPP/RNBQKB1R b KQkq - +A30 English Opening: Symmetrical, Hedgehog, Flexible Formation 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7 g1f3 c7c5 c2c4 g8f6 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 d2d4 c5d4 d1d4 d7d6 f1d1 a7a6 b2b3 b8d7 r2qk2r/1b1nbppp/pp1ppn2/8/2PQ4/1PN2NP1/P3PPBP/R1BR2K1 w kq - +A30 English Opening: Wing Gambit 1. c4 c5 2. b4 c2c4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1PP5/8/P2PPPPP/RNBQKBNR b KQkq - +A31 English Opening: Symmetrical Variation, Anti-Benoni Variation 1. d4 Nf6 2. c4 c5 3. Nf3 d2d4 g8f6 c2c4 c7c5 g1f3 rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +A32 English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e6 d2d4 g8f6 c2c4 c7c5 g1f3 c5d4 f3d4 e7e6 rnbqkb1r/pp1p1ppp/4pn2/8/2PN4/8/PP2PPPP/RNBQKB1R w KQkq - +A33 English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 Qb6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6 g2g3 d8b6 r1b1kb1r/pp1p1ppp/1qn1pn2/8/2PN4/2N3P1/PP2PP1P/R1BQKB1R w KQkq - +A33 English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6 r1bqkb1r/pp1p1ppp/2n1pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R w KQkq - +A34 English Opening: Symmetrical Variation, Fianchetto Variation 1. c4 Nf6 2. Nc3 c5 3. g3 c2c4 g8f6 b1c3 c7c5 g2g3 rnbqkb1r/pp1ppppp/5n2/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - +A34 English Opening: Symmetrical Variation, Normal Variation 1. c4 c5 2. Nc3 c2c4 c7c5 b1c3 rnbqkbnr/pp1ppppp/8/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - +A34 English Opening: Symmetrical Variation, Rubinstein Variation 1. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 c2c4 g8f6 b1c3 c7c5 g2g3 d7d5 c4d5 f6d5 f1g2 d5c7 rnbqkb1r/ppn1pppp/8/2p5/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A34 English Opening: Symmetrical Variation, Three Knights Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 g1f3 g8f6 c2c4 c7c5 b1c3 d7d5 c4d5 f6d5 rnbqkb1r/pp2pppp/8/2pn4/8/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A35 English Opening: Symmetrical Variation, Four Knights Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 r1bqkb1r/pp1ppppp/2n2n2/2p5/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - +A35 English Opening: Symmetrical Variation, Two Knights Variation 1. c4 c5 2. Nc3 Nc6 c2c4 c7c5 b1c3 b8c6 r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - +A36 English Opening: Symmetrical Variation, Botvinnik System 1. e4 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e2e4 c7c5 c2c4 b8c6 b1c3 g7g6 g2g3 f8g7 f1g2 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq - +A36 English Opening: Symmetrical Variation, Botvinnik System Reversed 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. e3 e5 c2c4 c7c5 b1c3 g7g6 g2g3 f8g7 f1g2 b8c6 e2e3 e7e5 r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N1P1P1/PP1P1PBP/R1BQK1NR w KQkq - +A36 English Opening: Symmetrical Variation, Fianchetto Variation 1. c4 c5 2. Nc3 Nc6 3. g3 c2c4 c7c5 b1c3 b8c6 g2g3 r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - +A36 English Opening: Symmetrical Variation, Symmetrical Variation 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 c2c4 c7c5 g2g3 g7g6 f1g2 f8g7 b1c3 b8c6 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - +A37 English Opening: Symmetrical Variation, Botvinnik System Reversed 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. g3 g6 5. Bg2 Bg7 g1f3 c7c5 c2c4 b8c6 b1c3 e7e5 g2g3 g7g6 f1g2 f8g7 r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - +A37 English Opening: Symmetrical Variation, Two Knights Line 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R b KQkq - +A38 English Opening: Symmetrical Variation, Double Fianchetto 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6 e1g1 e8g8 b2b3 r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/1PN2NP1/P2PPPBP/R1BQ1RK1 b - - +A38 English Opening: Symmetrical Variation, Duchamp Variation 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. Nc3 Nc6 7. d3 g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 c2c4 c7c5 b1c3 b8c6 d2d3 r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/2NP1NP1/PP2PPBP/R1BQ1RK1 b - - +A38 English Opening: Symmetrical Variation, Full Symmetry Line 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - +A39 English Opening: Symmetrical Variation, Mecking Variation 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d4 r1bq1rk1/pp1pppbp/2n2np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +A40 Australian Defense 1. d4 Na6 d2d4 b8a6 r1bqkbnr/pppppppp/n7/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Benoni Defense: Franco-Sicilian Hybrid 1. d4 e6 2. c4 c5 3. d5 exd5 4. cxd5 d6 5. Nc3 g6 6. e4 Bg7 7. Nf3 Ne7 d2d4 e7e6 c2c4 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 g1f3 g8e7 rnbqk2r/pp2npbp/3p2p1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +A40 Borg Defense: Borg Gambit 1. d4 g5 d2d4 g7g5 rnbqkbnr/pppppp1p/8/6p1/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Colle System: Pterodactyl Variation 1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 Qa5+ d2d4 g7g6 g1f3 f8g7 e2e3 c7c5 f1d3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq - +A40 Colle System: Siroccopteryx Variation 1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 cxd4 5. Nxd4 Qa5+ d2d4 g7g6 g1f3 f8g7 e2e3 c7c5 f1d3 c5d4 f3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/3N4/3BP3/PPP2PPP/RNBQK2R w KQkq - +A40 Dutch Defense: Senechaud Gambit 1. d4 e6 2. Bf4 f5 3. g4 d2d4 e7e6 c1f4 f7f5 g2g4 rnbqkbnr/pppp2pp/4p3/5p2/3P1BP1/8/PPP1PP1P/RN1QKBNR b KQkq - +A40 Dutch Defense: Stonewall Variation, Modern Variation 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 d5 5. O-O Bd6 6. c4 c6 d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 d7d5 e1g1 f8d6 c2c4 c7c6 rnbqk2r/pp4pp/2pbpn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w kq - +A40 English Defense 1. d4 b6 d2d4 b7b6 rnbqkbnr/p1pppppp/1p6/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 English Defense 1. d4 e6 2. c4 b6 d2d4 e7e6 c2c4 b7b6 rnbqkbnr/p1pp1ppp/1p2p3/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A40 English Defense: Blumenfeld-Hiva Gambit 1. d4 b6 2. c4 c5 3. d5 e6 4. e4 b5 5. cxb5 f5 d2d4 b7b6 c2c4 c7c5 d4d5 e7e6 e2e4 b6b5 c4b5 f7f5 rnbqkbnr/p2p2pp/4p3/1PpP1p2/4P3/8/PP3PPP/RNBQKBNR w KQkq - +A40 English Defense: Eastbourne Gambit 1. d4 b6 2. c4 Bb7 3. Nc3 e5 d2d4 b7b6 c2c4 c8b7 b1c3 e7e5 rn1qkbnr/pbpp1ppp/1p6/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A40 English Defense: Hartlaub Gambit Accepted 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6 c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 e4f5 g8f6 rn1qkb1r/pbpp2pp/1p2pn2/5P2/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - +A40 English Defense: Hartlaub Gambit Declined 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. d5 c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 d4d5 rn1qkbnr/pbpp2pp/1p2p3/3P1p2/2P1P3/2N5/PP3PPP/R1BQKBNR b KQkq - +A40 English Defense: Perrin Variation 1. d4 e6 2. c4 b6 3. e4 Bb7 4. Bd3 Nc6 d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f1d3 b8c6 r2qkbnr/pbpp1ppp/1pn1p3/8/2PPP3/3B4/PP3PPP/RNBQK1NR w KQkq - +A40 English Defense: Poli Gambit 1. d4 e6 2. c4 b6 3. e4 Bb7 4. f3 f5 5. exf5 Nh6 d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f2f3 f7f5 e4f5 g8h6 rn1qkb1r/pbpp2pp/1p2p2n/5P2/2PP4/5P2/PP4PP/RNBQKBNR w KQkq - +A40 Englund Gambit 1. d4 e5 d2d4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex Declined 1. d4 e5 2. d5 d2d4 e7e5 d4d5 rnbqkbnr/pppp1ppp/8/3Pp3/8/8/PPP1PPPP/RNBQKBNR b KQkq - +A40 Englund Gambit Complex Declined: Diemer Counterattack 1. d4 e5 2. d5 Bc5 3. e4 Qh4 d2d4 e7e5 d4d5 f8c5 e2e4 d8h4 rnb1k1nr/pppp1ppp/8/2bPp3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex: Englund Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 r1b1kbnr/ppppqppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Complex: Felbecker Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Bc5 d2d4 e7e5 d4e5 b8c6 g1f3 f8c5 r1bqk1nr/pppp1ppp/2n5/2b1P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Complex: Hartlaub-Charlick Gambit 1. d4 e5 2. dxe5 d6 d2d4 e7e5 d4e5 d7d6 rnbqkbnr/ppp2ppp/3p4/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex: Mosquito Gambit 1. d4 e5 2. dxe5 Qh4 d2d4 e7e5 d4e5 d8h4 rnb1kbnr/pppp1ppp/8/4P3/7q/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex: Soller Gambit 1. d4 e5 2. dxe5 f6 d2d4 e7e5 d4e5 f7f6 rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Englund Gambit Complex: Soller Gambit Deferred 1. d4 e5 2. dxe5 Nc6 3. Nf3 f6 d2d4 e7e5 d4e5 b8c6 g1f3 f7f6 r1bqkbnr/pppp2pp/2n2p2/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Complex: Stockholm Variation 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 r1b1kbnr/ppppqppp/2n5/3QP3/8/5N2/PPP1PPPP/RNB1KB1R b KQkq - +A40 Englund Gambit Complex: Zilbermints Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Nge7 d2d4 e7e5 d4e5 b8c6 g1f3 g8e7 r1bqkb1r/ppppnppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Complex: Zilbermints Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 h6 d2d4 e7e5 d4e5 b8c6 g1f3 h7h6 r1bqkbnr/pppp1pp1/2n4p/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Declined: Reversed Alekhine 1. d4 e5 2. Nf3 d2d4 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - +A40 Englund Gambit Declined: Reversed Brooklyn 1. d4 e5 2. Nf3 e4 3. Ng1 d2d4 e7e5 g1f3 e5e4 f3g1 rnbqkbnr/pppp1ppp/8/8/3Pp3/8/PPP1PPPP/RNBQKBNR b KQkq - +A40 Englund Gambit Declined: Reversed Krebs 1. d4 e5 2. Nf3 e4 d2d4 e7e5 g1f3 e5e4 rnbqkbnr/pppp1ppp/8/8/3Pp3/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A40 Englund Gambit Declined: Reversed Mokele Mbembe 1. d4 e5 2. Nf3 e4 3. Ne5 d2d4 e7e5 g1f3 e5e4 f3e5 rnbqkbnr/pppp1ppp/8/4N3/3Pp3/8/PPP1PPPP/RNBQKB1R b KQkq - +A40 Horwitz Defense 1. d4 e6 d2d4 e7e6 rnbqkbnr/pppp1ppp/4p3/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Kangaroo Defense 1. d4 e6 2. c4 Bb4+ d2d4 e7e6 c2c4 f8b4 rnbqk1nr/pppp1ppp/4p3/8/1bPP4/8/PP2PPPP/RNBQKBNR w KQkq - +A40 Kangaroo Defense: Keres Defense, Transpositional Variation 1. d4 e6 2. c4 Bb4+ 3. Nc3 d2d4 e7e6 c2c4 f8b4 b1c3 rnbqk1nr/pppp1ppp/4p3/8/1bPP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +A40 Mikenas Defense 1. d4 Nc6 d2d4 b8c6 r1bqkbnr/pppppppp/2n5/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Mikenas Defense: Cannstatter Variation 1. d4 Nc6 2. c4 e5 3. d5 Nd4 d2d4 b8c6 c2c4 e7e5 d4d5 c6d4 r1bqkbnr/pppp1ppp/8/3Pp3/2Pn4/8/PP2PPPP/RNBQKBNR w KQkq - +A40 Mikenas Defense: Lithuanian Variation 1. d4 Nc6 2. c4 e5 3. d5 Nce7 d2d4 b8c6 c2c4 e7e5 d4d5 c6e7 r1bqkbnr/ppppnppp/8/3Pp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A40 Mikenas Defense: Pozarek Gambit 1. d4 Nc6 2. c4 e5 3. dxe5 Nxe5 4. Nc3 Nxc4 d2d4 b8c6 c2c4 e7e5 d4e5 c6e5 b1c3 e5c4 r1bqkbnr/pppp1ppp/8/8/2n5/2N5/PP2PPPP/R1BQKBNR w KQkq - +A40 Modern Defense 1. d4 g6 d2d4 g7g6 rnbqkbnr/pppppp1p/6p1/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Modern Defense: Beefeater Variation 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 f5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 f7f5 rnbqk1nr/pp1pp2p/6p1/2pP1p2/2P5/2P5/P3PPPP/R1BQKBNR w KQkq - +A40 Modern Defense: Lizard Defense, Pirc-Diemer Gambit 1. d4 g6 2. h4 Nf6 3. h5 d2d4 g7g6 h2h4 g8f6 h4h5 rnbqkb1r/pppppp1p/5np1/7P/3P4/8/PPP1PPP1/RNBQKBNR b KQkq - +A40 Montevideo Defense 1. d4 Nc6 2. d5 Nb8 d2d4 b8c6 d4d5 c6b8 rnbqkbnr/pppppppp/8/3P4/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Polish Defense 1. d4 b5 d2d4 b7b5 rnbqkbnr/p1pppppp/8/1p6/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A40 Polish Defense: Spassky Gambit Accepted 1. d4 b5 2. e4 Bb7 3. Bxb5 d2d4 b7b5 e2e4 c8b7 f1b5 rn1qkbnr/pbpppppp/8/1B6/3PP3/8/PPP2PPP/RNBQK1NR b KQkq - +A40 Pterodactyl Defense: Central, Benoni Beefeater Pterodactyl 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 Bxc3+ 6. bxc3 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d7d6 e2e4 g7c3 b2c3 d8a5 rnb1k1nr/pp2pp1p/3p2p1/q1pP4/2P1P3/2P5/P4PPP/R1BQKBNR w KQkq - +A40 Pterodactyl Defense: Central, Benoni Pterodactyl 1. d4 g6 2. c4 Bg7 3. e4 c5 4. d5 Qa5+ d2d4 g7g6 c2c4 f8g7 e2e4 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/2P1P3/8/PP3PPP/RNBQKBNR w KQkq - +A40 Pterodactyl Defense: Fianchetto, Queen Benoni Pterodactyl 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/2P5/2N5/PP2PPPP/R1BQKBNR w KQkq - +A40 Pterodactyl Defense: Fianchetto, Queen Pteranodon 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 Qa5 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1pP4/2P5/2P5/P3PPPP/R1BQKBNR w KQkq - +A40 Pterodactyl Defense: Fianchetto, Queen Pterodactyl 1. d4 g6 2. Nf3 Bg7 3. g3 c5 4. Bg2 Qa5+ d2d4 g7g6 g1f3 f8g7 g2g3 c7c5 f1g2 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq - +A40 Pterodactyl Defense: Queen Pterodactyl, Quiet Line 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. e3 d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 e2e3 rnbqk1nr/pp1pppbp/6p1/2p5/2PP4/2N1P3/PP3PPP/R1BQKBNR b KQkq - +A40 Queen's Pawn Game 1. d4 d2d4 rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq - +A40 Queen's Pawn Game: Anglo-Slav Opening 1. d4 c6 2. c4 d6 d2d4 c7c6 c2c4 d7d6 rnbqkbnr/pp2pppp/2pp4/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A40 Queen's Pawn Game: Englund Gambit 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5 f6 5. exf6 Nxf6 d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 f7f6 e5f6 g8f6 r1b1kb1r/ppppq1pp/2n2n2/3Q4/8/5N2/PPP1PPPP/RNB1KB1R w KQkq - +A40 Queen's Pawn Game: London System, Pterodactyl Variation 1. d4 g6 2. Nf3 Bg7 3. Bf4 c5 4. c3 cxd4 5. cxd4 Qa5+ d2d4 g7g6 g1f3 f8g7 c1f4 c7c5 c2c3 c5d4 c3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/3P1B2/5N2/PP2PPPP/RN1QKB1R w KQkq - +A40 Slav Indian: Kudischewitsch Gambit 1. d4 c6 2. Nf3 Nf6 3. c4 b5 d2d4 c7c6 g1f3 g8f6 c2c4 b7b5 rnbqkb1r/p2ppppp/2p2n2/1p6/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +A40 St. George Defense: Polish Variation 1. d4 b5 2. e4 a6 3. Nf3 Bb7 4. Bd3 e6 d2d4 b7b5 e2e4 a7a6 g1f3 c8b7 f1d3 e7e6 rn1qkbnr/1bpp1ppp/p3p3/1p6/3PP3/3B1N2/PPP2PPP/RNBQK2R w KQkq - +A40 Zaire Defense 1. d4 Nc6 2. d5 Nb8 3. e4 Nf6 4. e5 Ng8 d2d4 b8c6 d4d5 c6b8 e2e4 g8f6 e4e5 f6g8 rnbqkbnr/pppppppp/8/3PP3/8/8/PPP2PPP/RNBQKBNR w KQkq - +A40 Zukertort Defense: Kingside Variation 1. d4 g6 2. Nf3 Nh6 d2d4 g7g6 g1f3 g8h6 rnbqkb1r/pppppp1p/6pn/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A41 English Rat: Pounds Gambit 1. d4 d6 2. c4 e5 3. dxe5 Be6 d2d4 d7d6 c2c4 e7e5 d4e5 c8e6 rn1qkbnr/ppp2ppp/3pb3/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A41 King's Pawn Game: Maróczy Defense 1. d4 d6 2. e4 e5 d2d4 d7d6 e2e4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +A41 Modern Defense 1. d4 g6 2. c4 Bg7 3. Nc3 d6 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 rnbqk1nr/ppp1ppbp/3p2p1/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A41 Old Indian Defense 1. d4 d6 2. c4 d2d4 d7d6 c2c4 rnbqkbnr/ppp1pppp/3p4/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - +A41 Queen's Pawn Game 1. d4 d6 d2d4 d7d6 rnbqkbnr/ppp1pppp/3p4/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A41 Rat Defense: English Rat 1. d4 d6 2. c4 e5 d2d4 d7d6 c2c4 e7e5 rnbqkbnr/ppp2ppp/3p4/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A41 Rat Defense: English Rat, Lisbon Gambit 1. d4 d6 2. c4 e5 3. dxe5 Nc6 d2d4 d7d6 c2c4 e7e5 d4e5 b8c6 r1bqkbnr/ppp2ppp/2np4/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A41 Robatsch Defense 1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. e4 Bg4 d2d4 d7d6 g1f3 g7g6 c2c4 f8g7 e2e4 c8g4 rn1qk1nr/ppp1ppbp/3p2p1/8/2PPP1b1/5N2/PP3PPP/RNBQKB1R w KQkq - +A41 Wade Defense 1. d4 d6 2. Nf3 Bg4 d2d4 d7d6 g1f3 c8g4 rn1qkbnr/ppp1pppp/3p4/8/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A41 Zukertort Opening: Wade Defense, Chigorin Plan 1. d4 d6 2. Nf3 Bg4 3. c4 Nd7 4. Qb3 Rb8 d2d4 d7d6 g1f3 c8g4 c2c4 b8d7 d1b3 a8b8 1r1qkbnr/pppnpppp/3p4/8/2PP2b1/1Q3N2/PP2PPPP/RNB1KB1R w KQk - +A42 Modern Defense: Averbakh System 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 rnbqk1nr/ppp1ppbp/3p2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +A42 Modern Defense: Kotov Variation 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 b8c6 r1bqk1nr/ppp1ppbp/2np2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq - +A42 Modern Defense: Randspringer Variation 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 f5 d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 f7f5 rnbqk1nr/ppp1p1bp/3p2p1/5p2/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq - +A42 Pterodactyl Defense 1. Nf3 c5 2. c4 g6 3. d4 Bg7 4. e4 Qa5+ 5. Nc3 d6 g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5 b1c3 d7d6 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +A42 Pterodactyl Defense: Central, Bogolubovia 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c5 5. Nge2 Qa5 d2d4 g7g6 c2c4 f8g7 e2e4 d7d6 b1c3 c7c5 g1e2 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N5/PP2NPPP/R1BQKB1R w KQkq - +A43 Benoni Defense: Benoni Gambit Accepted 1. d4 c5 2. dxc5 d2d4 c7c5 d4c5 rnbqkbnr/pp1ppppp/8/2P5/8/8/PPP1PPPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Benoni Gambit, Schlenker Defense 1. d4 c5 2. dxc5 Na6 d2d4 c7c5 d4c5 b8a6 r1bqkbnr/pp1ppppp/n7/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Benoni-Indian Defense 1. d4 c5 2. d5 Nf6 d2d4 c7c5 d4d5 g8f6 rnbqkb1r/pp1ppppp/5n2/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Benoni-Indian Defense, Kingside Move Order 1. d4 Nf6 2. Nf3 c5 3. d5 d2d4 g8f6 g1f3 c7c5 d4d5 rnbqkb1r/pp1ppppp/5n2/2pP4/8/5N2/PPP1PPPP/RNBQKB1R b KQkq - +A43 Benoni Defense: Benoni-Staunton Gambit 1. d4 c5 2. d5 f5 3. e4 d2d4 c7c5 d4d5 f7f5 e2e4 rnbqkbnr/pp1pp1pp/8/2pP1p2/4P3/8/PPP2PPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Cormorant Gambit 1. d4 c5 2. dxc5 b6 d2d4 c7c5 d4c5 b7b6 rnbqkbnr/p2ppppp/1p6/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: French Benoni 1. e4 e6 2. d4 c5 3. d5 e2e4 e7e6 d2d4 c7c5 d4d5 rnbqkbnr/pp1p1ppp/4p3/2pP4/4P3/8/PPP2PPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Hawk Variation 1. d4 Nf6 2. Nf3 c5 3. d5 c4 d2d4 g8f6 g1f3 c7c5 d4d5 c5c4 rnbqkb1r/pp1ppppp/5n2/3P4/2p5/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A43 Benoni Defense: Old Benoni 1. d4 c5 d2d4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Old Benoni 1. d4 c5 2. d5 d2d4 c7c5 d4d5 rnbqkbnr/pp1ppppp/8/2pP4/8/8/PPP1PPPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Old Benoni 1. d4 c5 2. d5 d6 d2d4 c7c5 d4d5 d7d6 rnbqkbnr/pp2pppp/3p4/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Old Benoni, Mujannah Formation 1. d4 c5 2. d5 f5 d2d4 c7c5 d4d5 f7f5 rnbqkbnr/pp1pp1pp/8/2pP1p2/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Old Benoni, Schmid Variation 1. d4 c5 2. d5 d6 3. Nc3 g6 d2d4 c7c5 d4d5 d7d6 b1c3 g7g6 rnbqkbnr/pp2pp1p/3p2p1/2pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A43 Benoni Defense: Snail Variation 1. d4 c5 2. d5 Na6 d2d4 c7c5 d4d5 b8a6 r1bqkbnr/pp1ppppp/n7/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - +A43 Benoni Defense: Woozle 1. d4 c5 2. d5 Nf6 3. Nc3 Qa5 d2d4 c7c5 d4d5 g8f6 b1c3 d8a5 rnb1kb1r/pp1ppppp/5n2/q1pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A43 Benoni Defense: Zilbermints-Benoni Gambit 1. d4 c5 2. b4 d2d4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P1P4/8/P1P1PPPP/RNBQKBNR b KQkq - +A43 Benoni Defense: Zilbermints-Benoni Gambit 1. d4 c5 2. Nf3 cxd4 3. b4 d2d4 c7c5 g1f3 c5d4 b2b4 rnbqkbnr/pp1ppppp/8/8/1P1p4/5N2/P1P1PPPP/RNBQKB1R b KQkq - +A43 Benoni Defense: Zilbermints-Benoni Gambit, Tamarkin Countergambit 1. d4 c5 2. Nf3 cxd4 3. b4 e5 d2d4 c7c5 g1f3 c5d4 b2b4 e7e5 rnbqkbnr/pp1p1ppp/8/4p3/1P1p4/5N2/P1P1PPPP/RNBQKB1R w KQkq - +A43 Indian Defense: Pseudo-Benko 1. d4 Nf6 2. Nf3 c5 3. d5 b5 d2d4 g8f6 g1f3 c7c5 d4d5 b7b5 rnbqkb1r/p2ppppp/5n2/1ppP4/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A43 Queen's Pawn Game: Liedmann Gambit 1. d4 c5 2. c4 cxd4 3. e3 d2d4 c7c5 c2c4 c5d4 e2e3 rnbqkbnr/pp1ppppp/8/8/2Pp4/4P3/PP3PPP/RNBQKBNR b KQkq - +A44 Benoni Defense: Old Benoni 1. d4 c5 2. d5 e5 d2d4 c7c5 d4d5 e7e5 rnbqkbnr/pp1p1ppp/8/2pPp3/8/8/PPP1PPPP/RNBQKBNR w KQkq e6 +A44 Benoni Defense: Semi-Benoni 1. d4 c5 2. d5 e5 3. e4 d6 d2d4 c7c5 d4d5 e7e5 e2e4 d7d6 rnbqkbnr/pp3ppp/3p4/2pPp3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +A45 Amazon Attack: Siberian Attack 1. d4 Nf6 2. Nc3 d5 3. Qd3 d2d4 g8f6 b1c3 d7d5 d1d3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2NQ4/PPP1PPPP/R1B1KBNR b KQkq - +A45 Blackmar-Diemer Gambit Declined: O'Kelly Defense 1. d4 Nf6 2. f3 d5 3. e4 dxe4 4. Nc3 c6 d2d4 g8f6 f2f3 d7d5 e2e4 d5e4 b1c3 c7c6 rnbqkb1r/pp2pppp/2p2n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +A45 Blackmar-Diemer Gambit Declined: Weinsbach Declination 1. d4 Nf6 2. Nc3 d5 3. f3 e6 4. e4 dxe4 d2d4 g8f6 b1c3 d7d5 f2f3 e7e6 e2e4 d5e4 rnbqkb1r/ppp2ppp/4pn2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +A45 Bronstein Gambit 1. d4 Nf6 2. g4 d2d4 g8f6 g2g4 rnbqkb1r/pppppppp/5n2/8/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq - +A45 Canard Opening 1. d4 Nf6 2. f4 d2d4 g8f6 f2f4 rnbqkb1r/pppppppp/5n2/8/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq - +A45 Indian Defense 1. d4 Nf6 d2d4 g8f6 rnbqkb1r/pppppppp/5n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A45 Indian Defense: Gedult Attack, Gedult Attack 1. d4 Nf6 2. f3 d5 3. g4 d2d4 g8f6 f2f3 d7d5 g2g4 rnbqkb1r/ppp1pppp/5n2/3p4/3P2P1/5P2/PPP1P2P/RNBQKBNR b KQkq - +A45 Indian Defense: Gibbins-Wiedenhagen Gambit Accepted 1. d4 Nf6 2. g4 Nxg4 d2d4 g8f6 g2g4 f6g4 rnbqkb1r/pppppppp/8/8/3P2n1/8/PPP1PP1P/RNBQKBNR w KQkq - +A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Maltese Falcon 1. d4 Nf6 2. g4 Nxg4 3. f3 Nf6 4. e4 d2d4 g8f6 g2g4 f6g4 f2f3 g4f6 e2e4 rnbqkb1r/pppppppp/5n2/8/3PP3/5P2/PPP4P/RNBQKBNR b KQkq - +A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Oshima Defense 1. d4 Nf6 2. g4 e5 d2d4 g8f6 g2g4 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq - +A45 Indian Defense: Gibbins-Wiedenhagen Gambit, Stummer Gambit 1. d4 Nf6 2. g4 Nxg4 3. e4 d6 4. Be2 Nf6 5. Nc3 d2d4 g8f6 g2g4 f6g4 e2e4 d7d6 f1e2 g4f6 b1c3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP1BP1P/R1BQK1NR b KQkq - +A45 Indian Defense: Lazard Gambit 1. d4 Nf6 2. Nd2 e5 d2d4 g8f6 b1d2 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P4/8/PPPNPPPP/R1BQKBNR w KQkq - +A45 Indian Defense: Maddigan Gambit 1. d4 Nf6 2. Nc3 e5 d2d4 g8f6 b1c3 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A45 Indian Defense: Omega Gambit 1. d4 Nf6 2. e4 d2d4 g8f6 e2e4 rnbqkb1r/pppppppp/5n2/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +A45 Indian Defense: Omega Gambit, Arafat Gambit 1. d4 Nf6 2. e4 Nxe4 3. Bd3 Nf6 4. Bg5 d2d4 g8f6 e2e4 f6e4 f1d3 e4f6 c1g5 rnbqkb1r/pppppppp/5n2/6B1/3P4/3B4/PPP2PPP/RN1QK1NR b KQkq - +A45 Indian Defense: Paleface Attack, Blackmar-Diemer Gambit Deferred 1. d4 Nf6 2. f3 d5 3. e4 d2d4 g8f6 f2f3 d7d5 e2e4 rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - +A45 Indian Defense: Pawn Push Variation 1. d4 Nf6 2. d5 d2d4 g8f6 d4d5 rnbqkb1r/pppppppp/5n2/3P4/8/8/PPP1PPPP/RNBQKBNR b KQkq - +A45 Indian Defense: Reversed Chigorin Defense 1. d4 Nf6 2. Nc3 c5 d2d4 g8f6 b1c3 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A45 Indian Defense: Tartakower Attack 1. d4 Nf6 2. g3 d2d4 g8f6 g2g3 rnbqkb1r/pppppppp/5n2/8/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq - +A45 Paleface Attack 1. d4 Nf6 2. f3 d2d4 g8f6 f2f3 rnbqkb1r/pppppppp/5n2/8/3P4/5P2/PPP1P1PP/RNBQKBNR b KQkq - +A45 Queen's Pawn Game: Chigorin Variation 1. d4 Nf6 2. Nc3 d5 d2d4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A45 Queen's Pawn Game: Veresov, Richter Attack 1. d4 Nf6 2. f3 d5 3. Nc3 d2d4 g8f6 f2f3 d7d5 b1c3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N2P2/PPP1P1PP/R1BQKBNR b KQkq - +A45 Trompowsky Attack 1. d4 Nf6 2. Bg5 d2d4 g8f6 c1g5 rnbqkb1r/pppppppp/5n2/6B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq - +A45 Trompowsky Attack: Borg Variation 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 g5 d2d4 g8f6 c1g5 f6e4 g5f4 g7g5 rnbqkb1r/pppppp1p/8/6p1/3PnB2/8/PPP1PPPP/RN1QKBNR w KQkq - +A45 Trompowsky Attack: Classical Defense 1. d4 Nf6 2. Bg5 e6 d2d4 g8f6 c1g5 e7e6 rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/8/PPP1PPPP/RN1QKBNR w KQkq - +A45 Trompowsky Attack: Classical Defense, Big Center Variation 1. d4 Nf6 2. Bg5 e6 3. e4 d2d4 g8f6 c1g5 e7e6 e2e4 rnbqkb1r/pppp1ppp/4pn2/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq - +A45 Trompowsky Attack: Edge Variation 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d2d4 g8f6 c1g5 f6e4 g5h4 rnbqkb1r/pppppppp/8/8/3Pn2B/8/PPP1PPPP/RN1QKBNR b KQkq - +A45 Trompowsky Attack: Edge Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 c6 4. Nd2 Qa5 5. c3 Nxd2 6. Qxd2 d5 7. e4 d2d4 g8f6 c1g5 f6e4 g5h4 c7c6 b1d2 d8a5 c2c3 e4d2 d1d2 d7d5 e2e4 rnb1kb1r/pp2pppp/2p5/q2p4/3PP2B/2P5/PP1Q1PPP/R3KBNR b KQkq - +A45 Trompowsky Attack: Edge Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d5 4. f3 Nf6 5. Nc3 Bf5 6. e4 d2d4 g8f6 c1g5 f6e4 g5h4 d7d5 f2f3 e4f6 b1c3 c8f5 e2e4 rn1qkb1r/ppp1pppp/5n2/3p1b2/3PP2B/2N2P2/PPP3PP/R2QKBNR b KQkq - +A45 Trompowsky Attack: Poisoned Pawn Variation 1. d4 Nf6 2. Bg5 c5 3. d5 Qb6 4. Nc3 d2d4 g8f6 c1g5 c7c5 d4d5 d8b6 b1c3 rnb1kb1r/pp1ppppp/1q3n2/2pP2B1/8/2N5/PPP1PPPP/R2QKBNR b KQkq - +A45 Trompowsky Attack: Raptor Variation 1. d4 Nf6 2. Bg5 Ne4 3. h4 d2d4 g8f6 c1g5 f6e4 h2h4 rnbqkb1r/pppppppp/8/6B1/3Pn2P/8/PPP1PPP1/RN1QKBNR b KQkq - +A45 Trompowsky Attack: Raptor Variation, Hergert Gambit 1. d4 Nf6 2. Bg5 Ne4 3. h4 Nxg5 4. hxg5 e5 d2d4 g8f6 c1g5 f6e4 h2h4 e4g5 h4g5 e7e5 rnbqkb1r/pppp1ppp/8/4p1P1/3P4/8/PPP1PPP1/RN1QKBNR w KQkq - +A46 Döry Defense 1. d4 Nf6 2. Nf3 Ne4 d2d4 g8f6 g1f3 f6e4 rnbqkb1r/pppppppp/8/8/3Pn3/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: Czech-Indian 1. d4 Nf6 2. Nf3 c6 d2d4 g8f6 g1f3 c7c6 rnbqkb1r/pp1ppppp/2p2n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: Knights Variation 1. d4 Nf6 2. Nf3 d2d4 g8f6 g1f3 rnbqkb1r/pppppppp/5n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - +A46 Indian Defense: Knights Variation, Alburt-Miles Variation 1. d4 Nf6 2. Nf3 a6 d2d4 g8f6 g1f3 a7a6 rnbqkb1r/1ppppppp/p4n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: London System 1. d4 Nf6 2. Nf3 e6 3. Bf4 d2d4 g8f6 g1f3 e7e6 c1f4 rnbqkb1r/pppp1ppp/4pn2/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - +A46 Indian Defense: Polish Variation 1. d4 Nf6 2. Nf3 b5 d2d4 g8f6 g1f3 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: Spielmann-Indian 1. d4 Nf6 2. Nf3 c5 d2d4 g8f6 g1f3 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Indian Defense: Wade-Tartakower Defense 1. d4 Nf6 2. Nf3 d6 d2d4 g8f6 g1f3 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A46 Old Indian Defense: Czech Variation 1. d4 Nf6 2. Nf3 c6 3. c4 d6 d2d4 g8f6 g1f3 c7c6 c2c4 d7d6 rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +A46 Old Indian Defense: Tartakower-Indian 1. d4 Nf6 2. Nf3 d6 3. c4 Bg4 d2d4 g8f6 g1f3 d7d6 c2c4 c8g4 rn1qkb1r/ppp1pppp/3p1n2/8/2PP2b1/5N2/PP2PPPP/RNBQKB1R w KQkq - +A46 Queen's Pawn Game: Torre Attack, Breyer Variation 1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 c5 5. c3 Qb6 d2d4 g8f6 g1f3 e7e6 c1g5 d7d5 e2e3 c7c5 c2c3 d8b6 rnb1kb1r/pp3ppp/1q2pn2/2pp2B1/3P4/2P1PN2/PP3PPP/RN1QKB1R w KQkq - +A46 Queen's Pawn Game: Veresov Attack, Classical Defense 1. d4 Nf6 2. Nf3 e6 3. Nc3 d5 4. Bg5 d2d4 g8f6 g1f3 e7e6 b1c3 d7d5 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/3P4/2N2N2/PPP1PPPP/R2QKB1R b KQkq - +A46 Torre Attack 1. d4 Nf6 2. Nf3 e6 3. Bg5 d2d4 g8f6 g1f3 e7e6 c1g5 rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - +A46 Torre Attack: Classical Defense, Nimzowitsch Variation 1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 d2d4 g8f6 g1f3 e7e6 c1g5 h7h6 rnbqkb1r/pppp1pp1/4pn1p/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R w KQkq - +A46 Torre Attack: Classical Defense, Petrosian Gambit 1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 b6 5. d5 d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e3 b7b6 d4d5 rnbqkb1r/p2p1ppp/1p2pn2/2pP2B1/8/4PN2/PPP2PPP/RN1QKB1R b KQkq - +A46 Torre Attack: Wagner Gambit 1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e4 d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e4 rnbqkb1r/pp1p1ppp/4pn2/2p3B1/3PP3/5N2/PPP2PPP/RN1QKB1R b KQkq - +A46 Yusupov-Rubinstein System 1. d4 Nf6 2. Nf3 e6 3. e3 d2d4 g8f6 g1f3 e7e6 e2e3 rnbqkb1r/pppp1ppp/4pn2/8/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq - +A47 Indian Defense: Schnepper Gambit 1. d4 Nf6 2. Nf3 b6 3. c3 e5 d2d4 g8f6 g1f3 b7b6 c2c3 e7e5 rnbqkb1r/p1pp1ppp/1p3n2/4p3/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq - +A47 Marienbad System 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq - +A47 Queen's Indian Defense 1. d4 Nf6 2. Nf3 b6 d2d4 g8f6 g1f3 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A47 Queen's Indian Defense: Marienbad System, Berg Variation 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c4 cxd4 6. Qxd4 d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 c2c4 c5d4 d1d4 rn1qkb1r/pb1ppppp/1p3n2/8/2PQ4/5NP1/PP2PPBP/RNB1K2R b KQkq - +A48 East Indian Defense 1. d4 Nf6 2. Nf3 g6 d2d4 g8f6 g1f3 g7g6 rnbqkb1r/pppppp1p/5np1/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A48 London System 1. d4 Nf6 2. Nf3 g6 3. Bf4 d2d4 g8f6 g1f3 g7g6 c1f4 rnbqkb1r/pppppp1p/5np1/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - +A48 Queen's Pawn Game: Barry Attack, Grünfeld Variation 1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Be2 d2d4 g8f6 g1f3 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 f1e2 rnbq1rk1/ppp1ppbp/5np1/3p4/3P1B2/2N1PN2/PPP1BPPP/R2QK2R b KQ - +A48 Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 O-O d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 d7d5 e2e3 e8g8 rnbq1rk1/ppp1ppbp/5np1/3p2B1/3P4/4PN2/PPPN1PPP/R2QKB1R w KQ - +A48 Torre Attack 1. d4 Nf6 2. Nf3 g6 3. Bg5 d2d4 g8f6 g1f3 g7g6 c1g5 rnbqkb1r/pppppp1p/5np1/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - +A48 Torre Attack: Fianchetto Defense, Euwe Variation 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 c5 d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 c7c5 rnbqk2r/pp1pppbp/5np1/2p3B1/3P4/5N2/PPPNPPPP/R2QKB1R w KQkq - +A49 Indian Defense: Przepiorka Variation 1. d4 Nf6 2. Nf3 g6 3. g3 d2d4 g8f6 g1f3 g7g6 g2g3 rnbqkb1r/pppppp1p/5np1/8/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq - +A49 King's Indian Defense: Fianchetto Variation, Benjamin Defense 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 c6 7. Nc3 Qb6 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d6 c2c4 c7c6 b1c3 d8b6 rnb2rk1/pp2ppbp/1qpp1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A50 Indian Defense: Medusa Gambit 1. d4 Nf6 2. c4 g5 d2d4 g8f6 c2c4 g7g5 rnbqkb1r/pppppp1p/5n2/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A50 Indian Defense: Normal Variation 1. d4 Nf6 2. c4 d2d4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - +A50 Indian Defense: Pyrenees Gambit 1. d4 Nf6 2. c4 b5 d2d4 g8f6 c2c4 b7b5 rnbqkb1r/p1pppppp/5n2/1p6/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A50 Mexican Defense 1. d4 Nf6 2. c4 Nc6 d2d4 g8f6 c2c4 b8c6 r1bqkb1r/pppppppp/2n2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A50 Mexican Defense: Horsefly Gambit 1. d4 Nf6 2. c4 Nc6 3. d5 Ne5 4. f4 d2d4 g8f6 c2c4 b8c6 d4d5 c6e5 f2f4 r1bqkb1r/pppppppp/5n2/3Pn3/2P2P2/8/PP2P1PP/RNBQKBNR b KQkq - +A50 Queen's Indian Accelerated 1. d4 Nf6 2. c4 b6 d2d4 g8f6 c2c4 b7b6 rnbqkb1r/p1pppppp/1p3n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A50 Slav Indian 1. d4 Nf6 2. c4 c6 d2d4 g8f6 c2c4 c7c6 rnbqkb1r/pp1ppppp/2p2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A51 Indian Defense: Budapest Defense 1. d4 Nf6 2. c4 e5 d2d4 g8f6 c2c4 e7e5 rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A51 Indian Defense: Budapest Defense, Fajarowicz Defense, Bonsdorf Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. a3 b6 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 a2a3 b7b6 rnbqkb1r/p1pp1ppp/1p6/4P3/2P1n3/P7/1P2PPPP/RNBQKBNR w KQkq - +A51 Indian Defense: Budapest Defense, Fajarowicz Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq - +A51 Indian Defense: Budapest Defense, Fajarowicz-Steiner Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. Qc2 d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 d1c2 rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PPQ1PPPP/RNB1KBNR b KQkq - +A52 Indian Defense: Budapest Defense 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 rnbqkb1r/pppp1ppp/8/4P3/2P3n1/8/PP2PPPP/RNBQKBNR w KQkq - +A52 Indian Defense: Budapest Defense, Adler Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 g1f3 rnbqkb1r/pppp1ppp/8/4P3/2P3n1/5N2/PP2PPPP/RNBQKB1R b KQkq - +A52 Indian Defense: Budapest Defense, Alekhine Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 rnbqkb1r/pppp1ppp/8/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR b KQkq - +A52 Indian Defense: Budapest Defense, Alekhine Variation, Abonyi Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 g4e5 f2f4 e5c6 rnbqkb1r/pppp1ppp/2n5/8/2P1PP2/8/PP4PP/RNBQKBNR w KQkq - +A52 Indian Defense: Budapest Defense, Alekhine Variation, Tartakower Defense 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d6 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 d7d6 rnbqkb1r/ppp2ppp/3p4/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR w KQkq - +A52 Indian Defense: Budapest Defense, Rubinstein Variation 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 c1f4 rnbqkb1r/pppp1ppp/8/4P3/2P2Bn1/8/PP2PPPP/RN1QKBNR b KQkq - +A53 Old Indian Defense 1. d4 Nf6 2. c4 d6 d2d4 g8f6 c2c4 d7d6 rnbqkb1r/ppp1pppp/3p1n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A53 Old Indian Defense: Aged Gibbon Gambit 1. d4 Nf6 2. c4 d6 3. g4 d2d4 g8f6 c2c4 d7d6 g2g4 rnbqkb1r/ppp1pppp/3p1n2/8/2PP2P1/8/PP2PP1P/RNBQKBNR b KQkq - +A53 Old Indian Defense: Czech Variation 1. d4 Nf6 2. c4 d6 3. Nc3 c6 d2d4 g8f6 c2c4 d7d6 b1c3 c7c6 rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A53 Old Indian Defense: Janowski Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A53 Old Indian Defense: Janowski Variation, Fianchetto Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g1f3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +A53 Old Indian Defense: Janowski Variation, Fianchetto Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. g3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g2g3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq - +A53 Old Indian Defense: Janowski Variation, Grinberg Gambit 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. e4 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 e2e4 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +A53 Old Indian Defense: Janowski Variation, Main Line 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. f3 d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 f2f3 rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq - +A54 Old Indian Defense: Dus-Khotimirsky Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. e3 Nbd7 5. Bd3 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 e2e3 b8d7 f1d3 r1bqkb1r/pppn1ppp/3p1n2/4p3/2PP4/2NBP3/PP3PPP/R1BQK1NR b KQkq - +A54 Old Indian Defense: Two Knights Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 g1f3 rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +A54 Old Indian Defense: Ukrainian Variation 1. d4 Nf6 2. c4 d6 3. Nc3 e5 d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A55 Old Indian Defense: Normal Variation 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 d2d4 g8f6 c2c4 d7d6 b1c3 b8d7 e2e4 e7e5 g1f3 r1bqkb1r/pppn1ppp/3p1n2/4p3/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +A56 Benoni Defense 1. d4 Nf6 2. c4 c5 d2d4 g8f6 c2c4 c7c5 rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A56 Benoni Defense: Czech Benoni Defense 1. d4 Nf6 2. c4 c5 3. d5 e5 d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 rnbqkb1r/pp1p1ppp/5n2/2pPp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq e6 +A56 Benoni Defense: Hromádka System 1. d4 Nf6 2. c4 c5 3. d5 d6 d2d4 g8f6 c2c4 c7c5 d4d5 d7d6 rnbqkb1r/pp2pppp/3p1n2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A56 Benoni Defense: King's Indian System 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 g6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 b1c3 d7d6 e2e4 g7g6 rnbqkb1r/pp3p1p/3p1np1/2pPp3/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - +A56 Benoni Defense: Weenink Variation 1. d4 Nf6 2. c4 c5 3. dxc5 e6 d2d4 g8f6 c2c4 c7c5 d4c5 e7e6 rnbqkb1r/pp1p1ppp/4pn2/2P5/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A56 Grünfeld Defense: Three Knights Variation, Burille Variation, Reversed Tarrasch 1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nc3 Bg7 5. Nf3 O-O 6. Be2 cxd4 7. exd4 d5 8. O-O Nc6 d2d4 g8f6 c2c4 c7c5 e2e3 g7g6 b1c3 f8g7 g1f3 e8g8 f1e2 c5d4 e3d4 d7d5 e1g1 b8c6 r1bq1rk1/pp2ppbp/2n2np1/3p4/2PP4/2N2N2/PP2BPPP/R1BQ1RK1 w - - +A56 Vulture Defense 1. d4 Nf6 2. c4 c5 3. d5 Ne4 d2d4 g8f6 c2c4 c7c5 d4d5 f6e4 rnbqkb1r/pp1ppppp/8/2pP4/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq - +A57 Benko Gambit 1. d4 Nf6 2. c4 c5 3. d5 b5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A57 Benko Gambit Accepted 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 rnbqkb1r/3ppppp/p4n2/1PpP4/8/8/PP2PPPP/RNBQKBNR w KQkq - +A57 Benko Gambit Accepted: Dlugy Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. f3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 f2f3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/5P2/PP2P1PP/RNBQKBNR b KQkq - +A57 Benko Gambit Accepted: Modern Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 e2e3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/4P3/PP3PPP/RNBQKBNR b KQkq - +A57 Benko Gambit Accepted: Pawn Return Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5b6 rnbqkb1r/3ppppp/pP3n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq - +A57 Benko Gambit Declined: Bishop Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Bg5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c1g5 rnbqkb1r/p2ppppp/5n2/1ppP2B1/2P5/8/PP2PPPP/RN1QKBNR b KQkq - +A57 Benko Gambit Declined: Hjørring Countergambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. e4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 e2e4 rnbqkb1r/p2ppppp/5n2/1ppP4/2P1P3/8/PP3PPP/RNBQKBNR b KQkq - +A57 Benko Gambit Declined: Main Line 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g1f3 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R b KQkq - +A57 Benko Gambit Declined: Pseudo-Sämisch 1. d4 Nf6 2. c4 c5 3. d5 b5 4. f3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 f2f3 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5P2/PP2P1PP/RNBQKBNR b KQkq - +A57 Benko Gambit Declined: Quiet Line 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 b1d2 rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP1NPPPP/R1BQKBNR b KQkq - +A57 Benko Gambit Declined: Sosonko Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 a2a4 rnbqkb1r/p2ppppp/5n2/1ppP4/P1P5/8/1P2PPPP/RNBQKBNR b KQkq - +A57 Benko Gambit: Mutkin Countergambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. g4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g2g4 rnbqkb1r/p2ppppp/5n2/1ppP4/2P3P1/8/PP2PP1P/RNBQKBNR b KQkq - +A57 Benko Gambit: Nescafe Frappe Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Bc4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 d7d6 f1c4 rnbqkb1r/4pppp/3p1n2/1NpP4/1pB1P3/8/PP3PPP/R1BQK1NR b KQkq - +A57 Benko Gambit: Zaitsev System 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 rnbqkb1r/3ppppp/p4n2/1PpP4/8/2N5/PP2PPPP/R1BQKBNR b KQkq - +A57 Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 rnbqkb1r/3ppppp/5n2/1NpP4/1p2P3/8/PP3PPP/R1BQKBNR b KQkq - +A58 Benko Gambit Accepted: Central Storming Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. f4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 f2f4 rn1qkb1r/3ppp1p/b4np1/2pP4/5P2/2N5/PP2P1PP/R1BQKBNR b KQkq - +A58 Benko Gambit Accepted: Fianchetto Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. g3 d6 8. Bg2 Bg7 9. Nf3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g2g3 d7d6 f1g2 f8g7 g1f3 rn1qk2r/4ppbp/b2p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R b KQkq - +A58 Benko Gambit Accepted: Fully Accepted Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 rnbqkb1r/3ppppp/P4n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq - +A58 Benko Gambit: Fianchetto Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 g2g3 rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +A58 Benko Gambit: Nd2 Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 f3d2 rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq - +A59 Benko Gambit 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. g3 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g2g3 rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N3P1/PP3P1P/R1BQ1KNR b kq - +A59 Benko Gambit Accepted: King Walk Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 d6 8. e4 Bxf1 9. Kxf1 Bg7 10. g3 O-O 11. Kg2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g1f3 d7d6 e2e4 a6f1 e1f1 f8g7 g2g3 e8g8 f1g2 rn1q1rk1/4ppbp/3p1np1/2pP4/4P3/2N2NP1/PP3PKP/R1BQ3R b - - +A59 Benko Gambit Accepted: Yugoslav 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4 rn1qkb1r/4pppp/b2p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq - +A59 Benko Gambit Accepted: Yugoslav 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. Nge2 d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g1e2 rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N5/PP2NPPP/R1BQ1K1R b kq - +A60 Benoni Defense: Modern Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 rnbqkb1r/pp1p1ppp/4pn2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +A60 Benoni Defense: Modern Variation, Snake Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 Bd6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 f8d6 rnbqk2r/pp1p1ppp/3b1n2/2pP4/8/2N5/PP2PPPP/R1BQKBNR w KQkq - +A61 Benoni Defense 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +A61 Benoni Defense: Fianchetto Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 g2g3 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +A61 Benoni Defense: Knight's Tour Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f3d2 rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq - +A61 Benoni Defense: Uhlmann Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 c1g5 rnbqkb1r/pp3p1p/3p1np1/2pP2B1/8/2N2N2/PP2PPPP/R2QKB1R b KQkq - +A62 Benoni Defense: Fianchetto Variation 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R w KQ - +A63 Benoni Defense: Fianchetto Variation, Hastings Defense 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Nbd7 d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 b8d7 r1bq1rk1/pp1n1pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A64 Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Nbd7 11. Nd2 Re8 d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 a7a6 a2a4 b8d7 f3d2 f8e8 r1bqr1k1/1p1n1pbp/p2p1np1/2pP4/P7/2N3P1/1P1NPPBP/R1BQ1RK1 w - - +A65 Benoni Defense: King's Pawn Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 rnbqkb1r/pp3ppp/3p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq - +A66 Benoni Defense: Mikenas Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. e5 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 e4e5 rnbqk2r/pp3pbp/3p1np1/2pPP3/5P2/2N5/PP4PP/R1BQKBNR b KQkq - +A66 Benoni Defense: Pawn Storm Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 rnbqkb1r/pp3p1p/3p1np1/2pP4/4PP2/2N5/PP4PP/R1BQKBNR b KQkq - +A67 Benoni Defense: Taimanov Variation 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 f1b5 rnbqk2r/pp3pbp/3p1np1/1BpP4/4PP2/2N5/PP4PP/R1BQK1NR b KQkq - +A68 Benoni Defense: Four Pawns Attack 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 g1f3 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP4PP/R1BQKB1R w KQ - +A69 Benoni Defense: Four Pawns Attack, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. cxd5 Re8 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 e6d5 c4d5 f8e8 rnbqr1k1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP2B1PP/R1BQK2R w KQ - +A70 Benoni Defense: Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 rnbqkb1r/pp3p1p/3p1np1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +A70 Benoni Defense: Classical Variation, New York Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. h3 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 h2h3 rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N1P/PP3PP1/R1BQKB1R b KQkq - +A70 Benoni Defense: Classical Variation, Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R b KQkq - +A71 Benoni Defense: Classical Variation, Averbakh-Grivas Attack 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 c1g5 rnbqk2r/pp3pbp/3p1np1/2pP2B1/4P3/2N2N2/PP3PPP/R2QKB1R b KQkq - +A72 Benoni Defense: Classical 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R w KQ - +A73 Benoni Defense: Classical Variation, Main Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 b - - +A74 Benoni Defense: Classical Variation, Full Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O a6 10. a4 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 rnbq1rk1/1p3pbp/p2p1np1/2pP4/P3P3/2N2N2/1P2BPPP/R1BQ1RK1 b - - +A75 Benoni Defense: Classical Variation, Argentine Counterattack 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O a6 10. a4 Bg4 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 c8g4 rn1q1rk1/1p3pbp/p2p1np1/2pP4/P3P1b1/2N2N2/1P2BPPP/R1BQ1RK1 w - - +A76 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +A77 Benoni Defense: Classical Variation, Czerniak Defense, Tal Line 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 b - - +A78 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 w - - +A79 Benoni Defense: Classical Variation, Czerniak Defense 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 11. f3 d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 f2f3 r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N2P2/PP1NB1PP/R1BQ1RK1 b - - +A80 Blackmar-Diemer Gambit: Netherlands Variation 1. d4 f5 2. Nc3 d5 3. e4 dxe4 d2d4 f7f5 b1c3 d7d5 e2e4 d5e4 rnbqkbnr/ppp1p1pp/8/5p2/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - +A80 Dutch Defense 1. d4 f5 d2d4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +A80 Dutch Defense: Alapin Variation 1. d4 f5 2. Qd3 d2d4 f7f5 d1d3 rnbqkbnr/ppppp1pp/8/5p2/3P4/3Q4/PPP1PPPP/RNB1KBNR b KQkq - +A80 Dutch Defense: Hevendehl Gambit 1. d4 f5 2. g4 e5 d2d4 f7f5 g2g4 e7e5 rnbqkbnr/pppp2pp/8/4pp2/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq - +A80 Dutch Defense: Hopton Attack 1. d4 f5 2. Bg5 d2d4 f7f5 c1g5 rnbqkbnr/ppppp1pp/8/5pB1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq - +A80 Dutch Defense: Janzen-Korchnoi Gambit 1. d4 f5 2. h3 Nf6 3. g4 d2d4 f7f5 h2h3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/7P/PPP1PP2/RNBQKBNR b KQkq - +A80 Dutch Defense: Kingfisher Gambit 1. d4 f5 2. Nc3 d5 3. e4 d2d4 f7f5 b1c3 d7d5 e2e4 rnbqkbnr/ppp1p1pp/8/3p1p2/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +A80 Dutch Defense: Korchnoi Attack 1. d4 f5 2. h3 d2d4 f7f5 h2h3 rnbqkbnr/ppppp1pp/8/5p2/3P4/7P/PPP1PPP1/RNBQKBNR b KQkq - +A80 Dutch Defense: Krejcik Gambit 1. d4 f5 2. g4 d2d4 f7f5 g2g4 rnbqkbnr/ppppp1pp/8/5p2/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq - +A80 Dutch Defense: Krejcik Gambit, Tate Gambit 1. d4 f5 2. g4 fxg4 3. e4 d5 4. Nc3 d2d4 f7f5 g2g4 f5g4 e2e4 d7d5 b1c3 rnbqkbnr/ppp1p1pp/8/3p4/3PP1p1/2N5/PPP2P1P/R1BQKBNR b KQkq - +A80 Dutch Defense: Manhattan Gambit, Anti-Classical Line 1. d4 f5 2. Qd3 e6 3. g4 d2d4 f7f5 d1d3 e7e6 g2g4 rnbqkbnr/pppp2pp/4p3/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - +A80 Dutch Defense: Manhattan Gambit, Anti-Leningrad 1. d4 f5 2. Qd3 g6 3. g4 d2d4 f7f5 d1d3 g7g6 g2g4 rnbqkbnr/ppppp2p/6p1/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - +A80 Dutch Defense: Manhattan Gambit, Anti-Modern 1. d4 f5 2. Qd3 d6 3. g4 d2d4 f7f5 d1d3 d7d6 g2g4 rnbqkbnr/ppp1p1pp/3p4/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - +A80 Dutch Defense: Manhattan Gambit, Anti-Stonewall 1. d4 f5 2. Qd3 d5 3. g4 d2d4 f7f5 d1d3 d7d5 g2g4 rnbqkbnr/ppp1p1pp/8/3p1p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - +A80 Dutch Defense: Omega-Isis Gambit 1. d4 f5 2. Nf3 e5 d2d4 f7f5 g1f3 e7e5 rnbqkbnr/pppp2pp/8/4pp2/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +A80 Dutch Defense: Raphael Variation 1. d4 f5 2. Nc3 d2d4 f7f5 b1c3 rnbqkbnr/ppppp1pp/8/5p2/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq - +A80 Dutch Defense: Spielmann Gambit 1. d4 f5 2. Nc3 Nf6 3. g4 d2d4 f7f5 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/2N5/PPP1PP1P/R1BQKBNR b KQkq - +A80 Queen's Pawn Game: Veresov Attack, Dutch System 1. d4 f5 2. Nc3 d5 d2d4 f7f5 b1c3 d7d5 rnbqkbnr/ppp1p1pp/8/3p1p2/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +A81 Dutch Defense: Blackburne Variation 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 d2d4 f7f5 g2g3 g8f6 f1g2 e7e6 g1h3 rnbqkb1r/pppp2pp/4pn2/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq - +A81 Dutch Defense: Fianchetto Attack 1. d4 f5 2. g3 d2d4 f7f5 g2g3 rnbqkbnr/ppppp1pp/8/5p2/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq - +A81 Dutch Defense: Leningrad Variation, Karlsbad Variation 1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nh3 d2d4 f7f5 g2g3 g7g6 f1g2 f8g7 g1h3 rnbqk1nr/ppppp1bp/6p1/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq - +A81 Dutch Defense: Leningrad, Basman System 1. d4 f5 2. g3 c6 3. Bg2 g6 4. Nf3 Bg7 5. O-O Nh6 d2d4 f7f5 g2g3 c7c6 f1g2 g7g6 g1f3 f8g7 e1g1 g8h6 rnbqk2r/pp1pp1bp/2p3pn/5p2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq - +A81 Dutch Defense: Semi-Leningrad Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 rnbqkb1r/ppppp2p/5np1/5p2/3P4/6P1/PPP1PPBP/RNBQK1NR w KQkq - +A82 Dutch Defense: Blackmar's Second Gambit 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. f3 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 f2f3 rnbqkb1r/ppppp1pp/5n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR b KQkq - +A82 Dutch Defense: Staunton Gambit 1. d4 f5 2. e4 d2d4 f7f5 e2e4 rnbqkbnr/ppppp1pp/8/5p2/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +A82 Dutch Defense: Staunton Gambit Accepted 1. d4 f5 2. e4 fxe4 d2d4 f7f5 e2e4 f5e4 rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq - +A82 Dutch Defense: Staunton Gambit, American Attack 1. d4 f5 2. e4 fxe4 3. Nd2 d2d4 f7f5 e2e4 f5e4 b1d2 rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPPN1PPP/R1BQKBNR b KQkq - +A82 Dutch Defense: Staunton Gambit, Tartakower Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4 rnbqkb1r/ppppp1pp/5n2/8/3Pp1P1/2N5/PPP2P1P/R1BQKBNR b KQkq - +A82 French Defense: Franco-Hiva Gambit 1. d4 f5 2. e4 e6 d2d4 f7f5 e2e4 e7e6 rnbqkbnr/pppp2pp/4p3/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +A82 Rat Defense: Balogh Defense 1. e4 d6 2. d4 f5 e2e4 d7d6 d2d4 f7f5 rnbqkbnr/ppp1p1pp/3p4/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +A83 Dutch Defense: Staunton Gambit 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 rnbqkb1r/ppppp1pp/5n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR b KQkq - +A83 Dutch Defense: Staunton Gambit, Alekhine Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. h4 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 h2h4 rnbqkb1r/ppppp2p/5np1/6B1/3Pp2P/2N5/PPP2PP1/R2QKBNR b KQkq - +A83 Dutch Defense: Staunton Gambit, Chigorin Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 c6 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 c7c6 rnbqkb1r/pp1pp1pp/2p2n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - +A83 Dutch Defense: Staunton Gambit, Lasker Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. f3 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 f2f3 rnbqkb1r/ppppp2p/5np1/6B1/3Pp3/2N2P2/PPP3PP/R2QKBNR b KQkq - +A83 Dutch Defense: Staunton Gambit, Nimzowitsch Variation 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 b6 d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 b7b6 rnbqkb1r/p1ppp1pp/1p3n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - +A84 Dutch Defense 1. d4 f5 2. c4 d2d4 f7f5 c2c4 rnbqkbnr/ppppp1pp/8/5p2/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - +A84 Dutch Defense: Bladel Variation 1. d4 f5 2. c4 g6 3. Nc3 Nh6 d2d4 f7f5 c2c4 g7g6 b1c3 g8h6 rnbqkb1r/ppppp2p/6pn/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +A84 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 d2d4 e7e6 c2c4 f7f5 rnbqkbnr/pppp2pp/4p3/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A84 Dutch Defense: Normal Variation 1. d4 f5 2. c4 Nf6 d2d4 f7f5 c2c4 g8f6 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +A84 Dutch Defense: Rubinstein Variation 1. d4 e6 2. c4 f5 3. Nc3 d2d4 e7e6 c2c4 f7f5 b1c3 rnbqkbnr/pppp2pp/4p3/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +A84 Horwitz Defense: Dutch Defense, Bellon Gambit 1. d4 e6 2. c4 f5 3. e4 d2d4 e7e6 c2c4 f7f5 e2e4 rnbqkbnr/pppp2pp/4p3/5p2/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - +A85 Dutch Defense: Queen's Knight Variation 1. d4 f5 2. c4 Nf6 3. Nc3 d2d4 f7f5 c2c4 g8f6 b1c3 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +A86 Dutch Defense: Fianchetto Variation 1. d4 f5 2. c4 Nf6 3. g3 d2d4 f7f5 c2c4 g8f6 g2g3 rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq - +A86 Dutch Defense: Hort-Antoshin System 1. c4 f5 2. g3 Nf6 3. Bg2 d6 4. Nc3 c6 5. d4 Qc7 c2c4 f7f5 g2g3 g8f6 f1g2 d7d6 b1c3 c7c6 d2d4 d8c7 rnb1kb1r/ppq1p1pp/2pp1n2/5p2/2PP4/2N3P1/PP2PPBP/R1BQK1NR w KQkq - +A86 Dutch Defense: Leningrad Variation 1. d4 f5 2. c4 Nf6 3. g3 g6 d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 rnbqkb1r/ppppp2p/5np1/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - +A87 Dutch Defense: Leningrad Variation 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 f1g2 f8g7 g1f3 rnbqk2r/ppppp1bp/5np1/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq - +A88 Dutch Defense: Leningrad Variation, Warsaw Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 c6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 c7c6 rnbq1rk1/pp2p1bp/2pp1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A89 Dutch Defense: Leningrad Variation, Matulovic Variation 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 b8c6 r1bq1rk1/ppp1p1bp/2np1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A90 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 rnbqkb1r/pppp2pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq - +A90 Dutch Defense: Nimzo-Dutch Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4 rnbqk2r/pppp2pp/4pn2/5p2/1bPP4/6P1/PP2PPBP/RNBQK1NR w KQkq - +A90 Dutch Defense: Nimzo-Dutch Variation, Alekhine Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ 5. Bd2 Be7 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4 c1d2 b4e7 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP1BPPBP/RN1QK1NR w KQkq - +A91 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq - +A91 Dutch Defense: Classical Variation, Blackburne Attack 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nh3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1h3 rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6PN/PP2PPBP/RNBQK2R b KQkq - +A92 Dutch Defense: Alekhine Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O Ne4 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 f6e4 rnbq1rk1/ppppb1pp/4p3/5p2/2PPn3/5NP1/PP2PPBP/RNBQ1RK1 w - - +A92 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 rnbq1rk1/ppppb1pp/4pn2/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R w KQ - +A92 Dutch Defense: Stonewall 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. c4 d5 7. Nc3 d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d5 b1c3 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +A92 Dutch Defense: Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +A93 Dutch Defense: Classical Variation, Stonewall Variation, Botvinnik Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. b3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3 rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b - - +A94 Dutch Defense: Classical Variation, Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. b3 c6 8. Ba3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3 c7c6 c1a3 rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/BP3NP1/P3PPBP/RN1Q1RK1 b - - +A95 Dutch Defense: Classical Variation, Stonewall Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 Be7 6. O-O O-O 7. Nc3 c6 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 d7d5 g1f3 f8e7 e1g1 e8g8 b1c3 c7c6 rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A95 Dutch Defense: Stonewall, Chekhover Variation 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 c6 8. Qc2 Qe8 9. Bg5 d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b1c3 c7c6 d1c2 d8e8 c1g5 rnb1qrk1/pp2b1pp/2p1pn2/3p1pB1/2PP4/2N2NP1/PPQ1PPBP/R4RK1 b - - +A96 Dutch Defense: Classical Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 rnbq1rk1/ppp1b1pp/3ppn2/5p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +A96 Dutch Defense: Classical Variation, Buenos Aires Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 a5 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 a7a5 rnbq1rk1/1pp1b1pp/3ppn2/p4p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A96 Dutch Defense: Classical Variation, Huisl Variation 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Ne4 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 f6e4 rnbq1rk1/ppp1b1pp/3pp3/5p2/2PPn3/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A97 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +A97 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Winter Variation 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. Re1 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 f1e1 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQR1K1 b - - +A98 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev-Lisitsyn Line 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. Qc2 d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 d1c2 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PPQ1PPBP/R1B2RK1 b - - +A99 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Modern Main Line 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. b3 d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8 b2b3 rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/1PN2NP1/P3PPBP/R1BQ1RK1 b - - +B00 Barnes Defense 1. e4 f6 e2e4 f7f6 rnbqkbnr/ppppp1pp/5p2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Borg Defense 1. e4 g5 e2e4 g7g5 rnbqkbnr/pppppp1p/8/6p1/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Borg Defense: Borg Gambit 1. e4 g5 2. d4 Bg7 e2e4 g7g5 d2d4 f8g7 rnbqk1nr/ppppppbp/8/6p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Borg Defense: Langhorst Gambit 1. e4 g5 2. d4 e6 3. c3 c5 4. dxc5 b6 e2e4 g7g5 d2d4 e7e6 c2c3 c7c5 d4c5 b7b6 rnbqkbnr/p2p1p1p/1p2p3/2P3p1/4P3/2P5/PP3PPP/RNBQKBNR w KQkq - +B00 Borg Defense: Troon Gambit 1. e4 g5 2. d4 h6 3. h4 g4 e2e4 g7g5 d2d4 h7h6 h2h4 g5g4 rnbqkbnr/pppppp2/7p/8/3PP1pP/8/PPP2PP1/RNBQKBNR w KQkq - +B00 Borg Opening: Zilbermints Gambit 1. e4 g5 2. d4 e5 e2e4 g7g5 d2d4 e7e5 rnbqkbnr/pppp1p1p/8/4p1p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Carr Defense 1. e4 h6 e2e4 h7h6 rnbqkbnr/ppppppp1/7p/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Carr Defense: Zilbermints Gambit 1. e4 h6 2. d4 e5 e2e4 h7h6 d2d4 e7e5 rnbqkbnr/pppp1pp1/7p/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Duras Gambit 1. e4 f5 e2e4 f7f5 rnbqkbnr/ppppp1pp/8/5p2/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Fried Fox Defense 1. e4 f6 2. d4 Kf7 e2e4 f7f6 d2d4 e8f7 rnbq1bnr/pppppkpp/5p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQ - +B00 Goldsmith Defense 1. e4 h5 e2e4 h7h5 rnbqkbnr/ppppppp1/8/7p/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Goldsmith Defense: Picklepuss Defense 1. e4 h5 2. d4 Nf6 e2e4 h7h5 d2d4 g8f6 rnbqkb1r/ppppppp1/5n2/7p/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Guatemala Defense 1. e4 b6 2. d4 Ba6 e2e4 b7b6 d2d4 c8a6 rn1qkbnr/p1pppppp/bp6/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Hippopotamus Defense 1. e4 Nh6 e2e4 g8h6 rnbqkb1r/pppppppp/7n/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Hippopotamus Defense 1. e4 Nh6 2. d4 g6 3. c4 f6 e2e4 g8h6 d2d4 g7g6 c2c4 f7f6 rnbqkb1r/ppppp2p/5ppn/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - +B00 King's Pawn 1. e4 e2e4 rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - +B00 King's Pawn Game: Nimzowitsch Defense 1. e4 Nc6 2. d4 e2e4 b8c6 d2d4 r1bqkbnr/pppppppp/2n5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +B00 King's Pawn Game: Nimzowitsch Defense, Wheeler Gambit 1. e4 Nc6 2. b4 Nxb4 3. c3 Nc6 4. d4 e2e4 b8c6 b2b4 c6b4 c2c3 b4c6 d2d4 r1bqkbnr/pppppppp/2n5/8/3PP3/2P5/P4PPP/RNBQKBNR b KQkq - +B00 Lemming Defense 1. e4 Na6 e2e4 b8a6 r1bqkbnr/pppppppp/n7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Lion Defense: Lion's Jaw 1. e4 d6 2. d4 Nf6 3. f3 e2e4 d7d6 d2d4 g8f6 f2f3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - +B00 Nimzowitsch Defense 1. e4 Nc6 e2e4 b8c6 r1bqkbnr/pppppppp/2n5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Breyer Variation 1. e4 Nc6 2. Nc3 Nf6 3. d4 e5 e2e4 b8c6 b1c3 g8f6 d2d4 e7e5 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Declined Variation 1. e4 Nc6 2. Nf3 e2e4 b8c6 g1f3 r1bqkbnr/pppppppp/2n5/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: El Columpio Defense 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 r1bqkb1r/pppppppp/2n5/4P3/6n1/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: El Columpio Defense, El Columpio Gambit 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. e6 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5e6 r1bqkb1r/ppp1pppp/2npP2n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: El Columpio Defense, Exchange Variation 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. exd6 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5d6 r1bqkb1r/ppp1pppp/2nP3n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: El Columpio Defense, Pin Variation 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. Bb5 e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 f1b5 r1bqkb1r/ppp1pppp/2np3n/1B2P3/3P4/5N1P/PPP2PP1/RNBQK2R b KQkq - +B00 Nimzowitsch Defense: Franco-Hiva Gambit 1. e4 Nc6 2. d4 e6 3. Nc3 f5 4. exf5 Nf6 e2e4 b8c6 d2d4 e7e6 b1c3 f7f5 e4f5 g8f6 r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Franco-Hiva Gambit 1. e4 Nc6 2. d4 e6 3. Nf3 f5 4. exf5 Nf6 e2e4 b8c6 d2d4 e7e6 g1f3 f7f5 e4f5 g8f6 r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: Franco-Nimzowitsch Variation 1. e4 Nc6 2. Nf3 e6 e2e4 b8c6 g1f3 e7e6 r1bqkbnr/pppp1ppp/2n1p3/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: French Connection 1. e4 Nc6 2. Nc3 e6 e2e4 b8c6 b1c3 e7e6 r1bqkbnr/pppp1ppp/2n1p3/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Hornung Gambit 1. e4 Nc6 2. d4 d5 3. Be3 e2e4 b8c6 d2d4 d7d5 c1e3 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq - +B00 Nimzowitsch Defense: Kennedy Variation 1. e4 Nc6 2. d4 e5 e2e4 b8c6 d2d4 e7e5 r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Bielefelder Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 Bc5 e2e4 b8c6 d2d4 e7e5 d4e5 f8c5 r1bqk1nr/pppp1ppp/2n5/2b1P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Hammer Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 f6 e2e4 b8c6 d2d4 e7e5 d4e5 f7f6 r1bqkbnr/pppp2pp/2n2p2/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Herford Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 Qh4 e2e4 b8c6 d2d4 e7e5 d4e5 d8h4 r1b1kbnr/pppp1ppp/2n5/4P3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Keres Attack 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nc3 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 b1c3 r1bqkbnr/pppp1ppp/8/4n3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation 1. e4 Nc6 2. d4 e5 3. d5 e2e4 b8c6 d2d4 e7e5 d4d5 r1bqkbnr/pppp1ppp/2n5/3Pp3/4P3/8/PPP2PPP/RNBQKBNR b KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Main Line 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Ng6 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5g6 r1bqkbnr/pppp1ppp/6n1/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Paulsen Attack 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nf3 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 g1f3 r1bqkbnr/pppp1ppp/8/4n3/4P3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, Riemann Defense 1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Nc6 e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5c6 r1bqkbnr/pppp1ppp/2n5/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Kennedy Variation, de Smet Gambit 1. e4 Nc6 2. d4 e5 3. dxe5 d6 e2e4 b8c6 d2d4 e7e5 d4e5 d7d6 r1bqkbnr/ppp2ppp/2np4/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Lean Variation 1. e4 Nc6 2. Nf3 f5 e2e4 b8c6 g1f3 f7f5 r1bqkbnr/ppppp1pp/2n5/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: Lean Variation, Colorado Counter Accepted 1. e4 Nc6 2. Nf3 f5 3. exf5 e2e4 b8c6 g1f3 f7f5 e4f5 r1bqkbnr/ppppp1pp/2n5/5P2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - +B00 Nimzowitsch Defense: Mikenas Variation 1. e4 Nc6 2. d4 d6 e2e4 b8c6 d2d4 d7d6 r1bqkbnr/ppp1pppp/2np4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Neo-Mongoloid Defense 1. e4 Nc6 2. d4 f6 e2e4 b8c6 d2d4 f7f6 r1bqkbnr/ppppp1pp/2n2p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Pirc Connection 1. e4 Nc6 2. Nc3 g6 e2e4 b8c6 b1c3 g7g6 r1bqkbnr/pppppp1p/2n3p1/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Pseudo-Spanish Variation 1. e4 Nc6 2. Bb5 e2e4 b8c6 f1b5 r1bqkbnr/pppppppp/2n5/1B6/4P3/8/PPPP1PPP/RNBQK1NR b KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation 1. e4 Nc6 2. d4 d5 e2e4 b8c6 d2d4 d7d5 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Aachen Gambit 1. e4 Nc6 2. d4 d5 3. exd5 Nb4 e2e4 b8c6 d2d4 d7d5 e4d5 c6b4 r1bqkbnr/ppp1pppp/8/3P4/1n1P4/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Advance Variation 1. e4 Nc6 2. d4 d5 3. e5 e2e4 b8c6 d2d4 d7d5 e4e5 r1bqkbnr/ppp1pppp/2n5/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation 1. e4 Nc6 2. d4 d5 3. Nc3 e2e4 b8c6 d2d4 d7d5 b1c3 r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Brandics Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 a6 e2e4 b8c6 d2d4 d7d5 b1c3 a7a6 r1bqkbnr/1pp1pppp/p1n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Erben Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 g6 e2e4 b8c6 d2d4 d7d5 b1c3 g7g6 r1bqkbnr/ppp1pp1p/2n3p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Heinola-Deppe Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 e5 e2e4 b8c6 d2d4 d7d5 b1c3 e7e5 r1bqkbnr/ppp2ppp/2n5/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Nimzowitsch Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Ne5 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6e5 r1bqkbnr/ppp1pppp/8/3Pn3/4p3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Richter Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Nb8 5. f3 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6b8 f2f3 rnbqkbnr/ppp1pppp/8/3P4/4p3/2N2P2/PPP3PP/R1BQKBNR b KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Vehre Variation 1. e4 Nc6 2. d4 d5 3. Nc3 Nf6 e2e4 b8c6 d2d4 d7d5 b1c3 g8f6 r1bqkb1r/ppp1pppp/2n2n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Exchange Variation 1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 r1b1kbnr/ppp1pppp/2n5/3q4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Nimzowitsch Defense: Scandinavian Variation, Exchange Variation, Marshall Gambit 1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nc3 e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 b1c3 r1b1kbnr/ppp1pppp/2n5/3q4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +B00 Nimzowitsch Defense: Wheeler Gambit 1. e4 Nc6 2. b4 e2e4 b8c6 b2b4 r1bqkbnr/pppppppp/2n5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B00 Nimzowitsch Defense: Williams Variation 1. e4 Nc6 2. Nf3 d6 e2e4 b8c6 g1f3 d7d6 r1bqkbnr/ppp1pppp/2np4/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B00 Nimzowitsch Defense: Woodchuck Variation 1. e4 Nc6 2. d4 a6 e2e4 b8c6 d2d4 a7a6 r1bqkbnr/1ppppppp/p1n5/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Owen Defense 1. e4 b6 e2e4 b7b6 rnbqkbnr/p1pppppp/1p6/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Owen Defense: Hekili-Loa Gambit 1. e4 b6 2. d4 c5 3. dxc5 Nc6 e2e4 b7b6 d2d4 c7c5 d4c5 b8c6 r1bqkbnr/p2ppppp/1pn5/2P5/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Owen Defense: Matovinsky Gambit 1. e4 b6 2. d4 Bb7 3. Bd3 f5 4. exf5 Bxg2 5. Qh5+ g6 e2e4 b7b6 d2d4 c8b7 f1d3 f7f5 e4f5 b7g2 d1h5 g7g6 rn1qkbnr/p1ppp2p/1p4p1/5P1Q/3P4/3B4/PPP2PbP/RNB1K1NR w KQkq - +B00 Owen Defense: Naselwaus Gambit 1. e4 b6 2. d4 Bb7 3. Bg5 e2e4 b7b6 d2d4 c8b7 c1g5 rn1qkbnr/pbpppppp/1p6/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq - +B00 Owen Defense: Smith Gambit 1. e4 b6 2. d4 Bb7 3. Nf3 e2e4 b7b6 d2d4 c8b7 g1f3 rn1qkbnr/pbpppppp/1p6/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B00 Owen Defense: Unicorn Variation 1. e4 f6 2. d4 b6 3. c4 Bb7 e2e4 f7f6 d2d4 b7b6 c2c4 c8b7 rn1qkbnr/pbppp1pp/1p3p2/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - +B00 Owen Defense: Wind Gambit 1. e4 b6 2. d4 Bb7 3. f3 e5 e2e4 b7b6 d2d4 c8b7 f2f3 e7e5 rn1qkbnr/pbpp1ppp/1p6/4p3/3PP3/5P2/PPP3PP/RNBQKBNR w KQkq - +B00 Pirc Defense 1. e4 d6 e2e4 d7d6 rnbqkbnr/ppp1pppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Pirc Defense 1. e4 d6 2. d4 e2e4 d7d6 d2d4 rnbqkbnr/ppp1pppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +B00 Pirc Defense 1. e4 d6 2. d4 Nf6 e2e4 d7d6 d2d4 g8f6 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Pirc Defense: Roscher Gambit 1. e4 d6 2. d4 Nf6 3. Nf3 e2e4 d7d6 d2d4 g8f6 g1f3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B00 Rat Defense: Antal Defense 1. e4 d6 2. d4 Nd7 e2e4 d7d6 d2d4 b8d7 r1bqkbnr/pppnpppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Rat Defense: Fuller Gambit 1. e4 d6 2. f4 d5 3. exd5 Nf6 e2e4 d7d6 f2f4 d6d5 e4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +B00 Rat Defense: Harmonist 1. e4 d6 2. f4 e2e4 d7d6 f2f4 rnbqkbnr/ppp1pppp/3p4/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +B00 Rat Defense: Petruccioli Attack 1. e4 d6 2. h4 e2e4 d7d6 h2h4 rnbqkbnr/ppp1pppp/3p4/8/4P2P/8/PPPP1PP1/RNBQKBNR b KQkq - +B00 Rat Defense: Spike Attack 1. e4 d6 2. g4 e2e4 d7d6 g2g4 rnbqkbnr/ppp1pppp/3p4/8/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq - +B00 St. George Defense 1. e4 a6 e2e4 a7a6 rnbqkbnr/1ppppppp/p7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 St. George Defense: San Jorge Variation 1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 d6 5. O-O g6 6. c3 Bg7 e2e4 a7a6 d2d4 b7b5 g1f3 c8b7 f1d3 d7d6 e1g1 g7g6 c2c3 f8g7 rn1qk1nr/1bp1ppbp/p2p2p1/1p6/3PP3/2PB1N2/PP3PPP/RNBQ1RK1 w kq - +B00 St. George Defense: Zilbermints Gambit 1. e4 a6 2. d4 e5 e2e4 a7a6 d2d4 e7e5 rnbqkbnr/1ppp1ppp/p7/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Van Geet Opening: Berlin Gambit 1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 r1bqkbnr/ppp1pppp/2n5/3P4/4p3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B00 Ware Defense 1. e4 a5 e2e4 a7a5 rnbqkbnr/1ppppppp/8/p7/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B00 Ware Defense: Snagglepuss Defense 1. e4 a5 2. d4 Nc6 e2e4 a7a5 d2d4 b8c6 r1bqkbnr/1ppppppp/2n5/p7/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B00 Zukertort Defense: Sicilian Knight Variation 1. e4 Na6 2. Nf3 c5 e2e4 b8a6 g1f3 c7c5 r1bqkbnr/pp1ppppp/n7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B01 Scandinavian Defense 1. e4 d5 e2e4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense 1. e4 d5 2. b3 e2e4 d7d5 b2b3 rnbqkbnr/ppp1pppp/8/3p4/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +B01 Scandinavian Defense: Anderssen Counterattack 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Anderssen Counterattack, Collijn Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 Bg4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 c8g4 rn2kbnr/ppp2ppp/8/q3p3/3P2b1/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B01 Scandinavian Defense: Anderssen Counterattack, Goteborg System 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B01 Scandinavian Defense: Anderssen Counterattack, Orthodox Attack 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Nc6 6. Nf3 Bb4 7. Bd2 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 d4e5 b8c6 g1f3 f8b4 c1d2 r1b1k1nr/ppp2ppp/2n5/q3P3/1b6/2N2N2/PPPB1PPP/R2QKB1R b KQkq - +B01 Scandinavian Defense: Blackburne Gambit 1. e4 d5 2. exd5 c6 3. dxc6 Nxc6 e2e4 d7d5 e4d5 c7c6 d5c6 b8c6 r1bqkbnr/pp2pppp/2n5/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Blackburne-Kloosterboer Gambit 1. e4 d5 2. exd5 c6 e2e4 d7d5 e4d5 c7c6 rnbqkbnr/pp2pppp/2p5/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Boehnke Gambit 1. e4 d5 2. exd5 e5 3. dxe6 Bxe6 e2e4 d7d5 e4d5 e7e5 d5e6 c8e6 rn1qkbnr/ppp2ppp/4b3/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Bronstein Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 g1f3 a7a6 rnb1kb1r/1pp1pppp/p2q1n2/8/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B01 Scandinavian Defense: Classical Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 rn2kb1r/ppp1pppp/5n2/q4b2/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B01 Scandinavian Defense: Grünfeld Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Ne5 c6 7. g4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 f3e5 c7c6 g2g4 rn2kb1r/pp2pppp/2p2n2/q3Nb2/3P2P1/2N5/PPP2P1P/R1BQKB1R b KQkq - +B01 Scandinavian Defense: Gubinsky-Melts Defense 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 rnb1kbnr/ppp1pppp/3q4/8/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Icelandic-Palme Gambit 1. e4 d5 2. exd5 Nf6 3. c4 e6 e2e4 d7d5 e4d5 g8f6 c2c4 e7e6 rnbqkb1r/ppp2ppp/4pn2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Kiel Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 c2c4 d5b4 rnbqkb1r/ppp1pppp/8/8/1nPP4/8/PP3PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Kloosterboer Gambit 1. e4 d5 2. exd5 c6 3. dxc6 e5 e2e4 d7d5 e4d5 c7c6 d5c6 e7e5 rnbqkbnr/pp3ppp/2P5/4p3/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Kádas Gambit 1. e4 d5 2. exd5 Nf6 3. d4 c6 4. dxc6 e5 e2e4 d7d5 e4d5 g8f6 d2d4 c7c6 d5c6 e7e5 rnbqkb1r/pp3ppp/2P2n2/4p3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Lasker Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8g4 h2h3 rn2kb1r/ppp1pppp/5n2/q7/3P2b1/2N2N1P/PPP2PP1/R1BQKB1R b KQkq - +B01 Scandinavian Defense: Main Line 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 rnb1kbnr/ppp1pppp/8/q7/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Main Line, Leonhardt Gambit 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 b2b4 rnb1kbnr/ppp1pppp/8/q7/1P6/2N5/P1PP1PPP/R1BQKBNR b KQkq - +B01 Scandinavian Defense: Main Line, Mieses Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 rnb1kb1r/ppp1pppp/5n2/q7/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Marshall Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 rnbqkb1r/ppp1pppp/8/3n4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Mieses-Kotroc Variation 1. e4 d5 2. exd5 Qxd5 e2e4 d7d5 e4d5 d8d5 rnb1kbnr/ppp1pppp/8/3q4/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Modern Variation 1. e4 d5 2. exd5 Nf6 e2e4 d7d5 e4d5 g8f6 rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Modern Variation 1. e4 d5 2. exd5 Nf6 3. d4 e2e4 d7d5 e4d5 g8f6 d2d4 rnbqkb1r/ppp1pppp/5n2/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B01 Scandinavian Defense: Modern Variation, Gipslis Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 c8g4 rn1qkb1r/ppp1pppp/8/3n4/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq - +B01 Scandinavian Defense: Modern Variation, Wing Gambit 1. e4 d5 2. exd5 Nf6 3. d4 g6 4. c4 b5 e2e4 d7d5 e4d5 g8f6 d2d4 g7g6 c2c4 b7b5 rnbqkb1r/p1p1pp1p/5np1/1p1P4/2PP4/8/PP3PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Panov Transfer 1. e4 d5 2. exd5 Nf6 3. c4 c6 e2e4 d7d5 e4d5 g8f6 c2c4 c7c6 rnbqkb1r/pp2pppp/2p2n2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Portuguese Variation 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 e2e4 d7d5 e4d5 g8f6 d2d4 c8g4 rn1qkb1r/ppp1pppp/5n2/3P4/3P2b1/8/PPP2PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Portuguese Variation, Portuguese Gambit 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Bb5+ Nbd7 5. f3 Bf5 e2e4 d7d5 e4d5 g8f6 d2d4 c8g4 f1b5 b8d7 f2f3 g4f5 r2qkb1r/pppnpppp/5n2/1B1P1b2/3P4/5P2/PPP3PP/RNBQK1NR w KQkq - +B01 Scandinavian Defense: Richter Variation 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 g6 e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 g7g6 rnbqkb1r/ppp1pp1p/6p1/3n4/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B01 Scandinavian Defense: Richter Variation 1. e4 d5 2. exd5 Nf6 3. d4 g6 e2e4 d7d5 e4d5 g8f6 d2d4 g7g6 rnbqkb1r/ppp1pp1p/5np1/3P4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B01 Scandinavian Defense: Schiller-Pytel Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 c6 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 c7c6 rnb1kbnr/pp2pppp/2pq4/8/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B01 Scandinavian Defense: Schiller-Pytel Variation, Modern Variation 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 c6 6. Nge2 Bf5 7. Bf4 Qb4 e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 f1c4 c7c6 g1e2 c8f5 c1f4 d6b4 rn2kb1r/pp2pppp/2p2n2/5b2/1qBP1B2/2N5/PPP1NPPP/R2QK2R w KQkq - +B01 Scandinavian Defense: Zilbermints Gambit 1. e4 d5 2. b4 e2e4 d7d5 b2b4 rnbqkbnr/ppp1pppp/8/3p4/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B01 Van Geet Opening: Grünfeld Defense 1. e4 d5 2. Nc3 dxe4 3. Nxe4 e5 e2e4 d7d5 b1c3 d5e4 c3e4 e7e5 rnbqkbnr/ppp2ppp/8/4p3/4N3/8/PPPP1PPP/R1BQKBNR w KQkq - +B02 Alekhine Defense 1. e4 Nf6 e2e4 g8f6 rnbqkb1r/pppppppp/5n2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Brooklyn Variation 1. e4 Nf6 2. e5 Ng8 e2e4 g8f6 e4e5 f6g8 rnbqkbnr/pppppppp/8/4P3/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Brooklyn Variation, Everglades Variation 1. e4 Nf6 2. e5 Ng8 3. d4 f5 e2e4 g8f6 e4e5 f6g8 d2d4 f7f5 rnbqkbnr/ppppp1pp/8/4Pp2/3P4/8/PPP2PPP/RNBQKBNR w KQkq f6 +B02 Alekhine Defense: Buckley Attack 1. e4 Nf6 2. e5 Nd5 3. Na3 e2e4 g8f6 e4e5 f6d5 b1a3 rnbqkb1r/pppppppp/8/3nP3/8/N7/PPPP1PPP/R1BQKBNR b KQkq - +B02 Alekhine Defense: Hunt Variation, Lasker Simul Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 rnbqkb1r/pppp1ppp/4p3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR b KQkq - +B02 Alekhine Defense: Hunt Variation, Matsukevich Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 d6 7. Bg5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 b1c3 d5c3 d2c3 d7d6 c1g5 rnbqkb1r/ppp1pppp/3p4/2P1P1B1/8/2P5/PP3PPP/R2QKBNR b KQkq - +B02 Alekhine Defense: Hunt Variation, Mikenas Gambit 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 7. Nxd5 exd5 8. Bxd5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6 c3d5 e6d5 c4d5 rnbqkb1r/ppp2ppp/3p4/2PBP3/8/8/PP1P1PPP/R1BQK1NR b KQkq - +B02 Alekhine Defense: Kmoch Variation 1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3 e2e4 g8f6 e4e5 f6d5 f1c4 d5b6 c4b3 c7c5 d2d3 rnbqkb1r/pp1ppppp/1n6/2p1P3/8/1B1P4/PPP2PPP/RNBQK1NR b KQkq - +B02 Alekhine Defense: Krejcik Variation 1. e4 Nf6 2. Bc4 e2e4 g8f6 f1c4 rnbqkb1r/pppppppp/5n2/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - +B02 Alekhine Defense: Krejcik Variation, Krejcik Gambit 1. e4 Nf6 2. Bc4 Nxe4 3. Bxf7+ e2e4 g8f6 f1c4 f6e4 c4f7 rnbqkb1r/pppppBpp/8/8/4n3/8/PPPP1PPP/RNBQK1NR b KQkq - +B02 Alekhine Defense: Maróczy Variation 1. e4 Nf6 2. d3 e2e4 g8f6 d2d3 rnbqkb1r/pppppppp/5n2/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - +B02 Alekhine Defense: Mokele Mbembe 1. e4 Nf6 2. e5 Ne4 e2e4 g8f6 e4e5 f6e4 rnbqkb1r/pppppppp/8/4P3/4n3/8/PPPP1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Mokele Mbembe, Modern Line 1. e4 Nf6 2. e5 Ne4 3. d4 f6 e2e4 g8f6 e4e5 f6e4 d2d4 f7f6 rnbqkb1r/ppppp1pp/5p2/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Mokele Mbembe, Vavra Defense 1. e4 Nf6 2. e5 Ne4 3. d4 e6 e2e4 g8f6 e4e5 f6e4 d2d4 e7e6 rnbqkb1r/pppp1ppp/4p3/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Normal Variation 1. e4 Nf6 2. e5 Nd5 e2e4 g8f6 e4e5 f6d5 rnbqkb1r/pppppppp/8/3nP3/8/8/PPPP1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Scandinavian Variation 1. e4 Nf6 2. Nc3 d5 e2e4 g8f6 b1c3 d7d5 rnbqkb1r/ppp1pppp/5n2/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B02 Alekhine Defense: Scandinavian Variation, Geschev Gambit 1. e4 Nf6 2. Nc3 d5 3. exd5 c6 e2e4 g8f6 b1c3 d7d5 e4d5 c7c6 rnbqkb1r/pp2pppp/2p2n2/3P4/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B02 Alekhine Defense: Scandinavian Variation, Myers Gambit 1. e4 Nf6 2. Nc3 d5 3. d3 dxe4 4. Bg5 e2e4 g8f6 b1c3 d7d5 d2d3 d5e4 c1g5 rnbqkb1r/ppp1pppp/5n2/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq - +B02 Alekhine Defense: Spielmann Gambit 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. e6 e2e4 g8f6 b1c3 d7d5 e4e5 f6d7 e5e6 rnbqkb1r/pppnpppp/4P3/3p4/8/2N5/PPPP1PPP/R1BQKBNR b KQkq - +B02 Alekhine Defense: Steiner Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 b2b3 rnbqkb1r/pppppppp/1n6/4P3/2P5/1P6/P2P1PPP/RNBQKBNR b KQkq - +B02 Alekhine Defense: Sämisch Attack 1. e4 Nf6 2. e5 Nd5 3. Nc3 e2e4 g8f6 e4e5 f6d5 b1c3 rnbqkb1r/pppppppp/8/3nP3/8/2N5/PPPP1PPP/R1BQKBNR b KQkq - +B02 Alekhine Defense: The Squirrel 1. e4 Nf6 2. e5 Nd5 3. c4 Nf4 e2e4 g8f6 e4e5 f6d5 c2c4 d5f4 rnbqkb1r/pppppppp/8/4P3/2P2n2/8/PP1P1PPP/RNBQKBNR w KQkq - +B02 Alekhine Defense: Two Pawn Attack 1. e4 Nf6 2. e5 Nd5 3. c4 e2e4 g8f6 e4e5 f6d5 c2c4 rnbqkb1r/pppppppp/8/3nP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq - +B02 Alekhine Defense: Two Pawn Attack, Lasker Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 rnbqkb1r/pppppppp/1n6/2P1P3/8/8/PP1P1PPP/RNBQKBNR b KQkq - +B02 Alekhine Defense: Two Pawns Attack, Mikenas Variation 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6 rnbqkb1r/ppp2ppp/3pp3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR w KQkq - +B02 Alekhine Defense: Welling Variation 1. e4 Nf6 2. e5 Nd5 3. b3 e2e4 g8f6 e4e5 f6d5 b2b3 rnbqkb1r/pppppppp/8/3nP3/8/1P6/P1PP1PPP/RNBQKBNR b KQkq - +B02 English Opening: Achilles-Omega Gambit 1. e4 Nf6 2. c4 e2e4 g8f6 c2c4 rnbqkb1r/pppppppp/5n2/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +B02 King's Pawn Game: Clam Variation, Radisch Gambit 1. e4 Nf6 2. d3 e5 3. f4 Bc5 e2e4 g8f6 d2d3 e7e5 f2f4 f8c5 rnbqk2r/pppp1ppp/5n2/2b1p3/4PP2/3P4/PPP3PP/RNBQKBNR w KQkq - +B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 e2e4 g8f6 e4e5 f6d5 d2d4 rnbqkb1r/pppppppp/8/3nP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 d6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B03 Alekhine Defense 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 rnbqkb1r/ppp1pppp/3p4/3nP3/2PP4/8/PP3PPP/RNBQKBNR b KQkq - +B03 Alekhine Defense: Balogh Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 f1c4 rnbqkb1r/ppp1pppp/3p4/3nP3/2BP4/8/PPP2PPP/RNBQK1NR b KQkq - +B03 Alekhine Defense: Exchange Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 rnbqkb1r/ppp1pppp/1n1P4/8/2PP4/8/PP3PPP/RNBQKBNR b KQkq - +B03 Alekhine Defense: Exchange Variation, Karpov Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. h3 Bg7 8. Nf3 O-O 9. Be2 Nc6 10. O-O Bf5 11. Bf4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 c7d6 b1c3 g7g6 h2h3 f8g7 g1f3 e8g8 f1e2 b8c6 e1g1 c8f5 c1f4 r2q1rk1/pp2ppbp/1nnp2p1/5b2/2PP1B2/2N2N1P/PP2BPP1/R2Q1RK1 b - - +B03 Alekhine Defense: Four Pawns Attack 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 rnbqkb1r/ppp1pppp/1n1p4/4P3/2PP1P2/8/PP4PP/RNBQKBNR b KQkq - +B03 Alekhine Defense: Four Pawns Attack, Cambridge Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g5 rnbqkb1r/ppp1pp1p/1n1p4/4P1p1/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - +B03 Alekhine Defense: Four Pawns Attack, Fianchetto Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g6 rnbqkb1r/ppp1pp1p/1n1p2p1/4P3/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - +B03 Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Nf3 Bg4 8. e6 fxe6 9. c5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 g1f3 c8g4 e5e6 f7e6 c4c5 r2qkb1r/ppp1p1pp/1nn1p3/2P5/3P2b1/5N2/PP4PP/RNBQKB1R b KQkq - +B03 Alekhine Defense: Four Pawns Attack, Korchnoi Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 e6 8. Nf3 Be7 9. Be2 O-O 10. O-O f6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 c8f5 b1c3 e7e6 g1f3 f8e7 f1e2 e8g8 e1g1 f7f6 rn1q1rk1/ppp1b1pp/1n2pp2/4Pb2/2PP4/2N2N2/PP2B1PP/R1BQ1RK1 w - - +B03 Alekhine Defense: Four Pawns Attack, Main Line 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 r1bqkb1r/ppp1pppp/1nn5/4P3/2PP4/4B3/PP4PP/RN1QKBNR b KQkq - +B03 Alekhine Defense: Four Pawns Attack, Tartakower Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Qd7 10. Be2 O-O-O 11. O-O Be7 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 c8f5 b1c3 e7e6 g1f3 d8d7 f1e2 e8c8 e1g1 f8e7 2kr3r/pppqbppp/1nn1p3/4Pb2/2PP4/2N1BN2/PP2B1PP/R2Q1RK1 w - - +B03 Alekhine Defense: Four Pawns Attack, Trifunovic Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 c8f5 rn1qkb1r/ppp1pppp/1n1p4/4Pb2/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - +B03 Alekhine Defense: Hunt Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. c5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 c4c5 rnbqkb1r/ppp1pppp/1n1p4/2P1P3/3P4/8/PP3PPP/RNBQKBNR b KQkq - +B03 Alekhine Defense: Modern Variation, Alekhine Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nf3 Bg4 6. Be2 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 g1f3 c8g4 f1e2 rn1qkb1r/ppp1pppp/1n1p4/4P3/2PP2b1/5N2/PP2BPPP/RNBQK2R b KQkq - +B03 Alekhine Defense: O'Sullivan Gambit 1. e4 Nf6 2. e5 Nd5 3. d4 b5 e2e4 g8f6 e4e5 f6d5 d2d4 b7b5 rnbqkb1r/p1pppppp/8/1p1nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B04 Alekhine Defense: Modern Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq - +B04 Alekhine Defense: Modern Variation, Alburt Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 rnbqkb1r/ppp1pp1p/3p2p1/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B04 Alekhine Defense: Modern Variation, Keres Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 f1c4 d5b6 c4b3 f8g7 a2a4 rnbqk2r/ppp1ppbp/1n1p2p1/4P3/P2P4/1B3N2/1PP2PPP/RNBQK2R b KQkq - +B04 Alekhine Defense: Modern Variation, Larsen Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d6e5 rnbqkb1r/ppp1pppp/8/3np3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B04 Alekhine Defense: Modern Variation, Larsen-Haakert Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nc6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 b8c6 r1bqkb1r/ppp1pppp/2np4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B04 Alekhine Defense: Modern Variation, Schmid Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d5b6 rnbqkb1r/ppp1pppp/1n1p4/4P3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +B05 Alekhine Defense: Modern Variation, Alekhine Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 rn1qkb1r/ppp1pppp/3p4/3nP3/2PP2b1/5N2/PP3PPP/RNBQKB1R b KQkq - +B05 Alekhine Defense: Modern Variation, Flohr Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 c6 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 f1e2 c7c6 rn1qkb1r/pp2pppp/2pp4/3nP3/3P2b1/5N2/PPP1BPPP/RNBQK2R w KQkq - +B05 Alekhine Defense: Modern Variation, Main Line 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq - +B05 Alekhine Defense: Modern Variation, Panov Variation 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 h2h3 rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N1P/PPP2PP1/RNBQKB1R b KQkq - +B05 Alekhine Defense: Modern Variation, Vitolins Attack 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 Nb6 6. d5 e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 d5b6 d4d5 rn1qkb1r/ppp1pppp/1n1p4/3PP3/2P3b1/5N2/PP3PPP/RNBQKB1R b KQkq - +B06 Modern Defense 1. e4 g6 e2e4 g7g6 rnbqkbnr/pppppp1p/6p1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B06 Modern Defense 1. e4 g6 2. d4 Bg7 e2e4 g7g6 d2d4 f8g7 rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B06 Modern Defense: Anti-Modern 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d6 5. Qe2 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f1c4 d7d6 d1e2 rnbqk1nr/pp2ppbp/2pp2p1/8/2BPP3/2N5/PPP1QPPP/R1B1K1NR b KQkq - +B06 Modern Defense: Bishop Attack 1. e4 g6 2. d4 Bg7 3. Bc4 e2e4 g7g6 d2d4 f8g7 f1c4 rnbqk1nr/ppppppbp/6p1/8/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq - +B06 Modern Defense: Bishop Attack, Bücker Gambit 1. e4 g6 2. d4 Bg7 3. Bc4 b5 e2e4 g7g6 d2d4 f8g7 f1c4 b7b5 rnbqk1nr/p1ppppbp/6p1/1p6/2BPP3/8/PPP2PPP/RNBQK1NR w KQkq - +B06 Modern Defense: Bishop Attack, Monkey's Bum 1. e4 g6 2. Bc4 Bg7 3. Qf3 e6 4. d4 Bxd4 e2e4 g7g6 f1c4 f8g7 d1f3 e7e6 d2d4 g7d4 rnbqk1nr/pppp1p1p/4p1p1/8/2BbP3/5Q2/PPP2PPP/RNB1K1NR w KQkq - +B06 Modern Defense: Dunworthy Variation 1. e4 g6 2. d4 Bg7 3. c4 d5 4. exd5 c6 5. dxc6 Bxd4 e2e4 g7g6 d2d4 f8g7 c2c4 d7d5 e4d5 c7c6 d5c6 g7d4 rnbqk1nr/pp2pp1p/2P3p1/8/2Pb4/8/PP3PPP/RNBQKBNR w KQkq - +B06 Modern Defense: Fianchetto Gambit 1. e4 g6 2. d4 f5 e2e4 g7g6 d2d4 f7f5 rnbqkbnr/ppppp2p/6p1/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B06 Modern Defense: Gurgenidze Defense 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f2f4 d7d5 e4e5 h7h5 rnbqk1nr/pp2ppb1/2p3p1/3pP2p/3P1P2/2N5/PPP3PP/R1BQKBNR w KQkq - +B06 Modern Defense: Lizard Defense, Mittenberger Gambit 1. e4 g6 2. d4 Bg7 3. Nc3 d5 e2e4 g7g6 d2d4 f8g7 b1c3 d7d5 rnbqk1nr/ppp1ppbp/6p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Modern Defense: Masur Gambit 1. e4 g6 2. d4 Nh6 3. Nc3 f5 4. Bxh6 Bxh6 5. exf5 O-O e2e4 g7g6 d2d4 g8h6 b1c3 f7f5 c1h6 f8h6 e4f5 e8g8 rnbq1rk1/ppppp2p/6pb/5P2/3P4/2N5/PPP2PPP/R2QKBNR w KQ - +B06 Modern Defense: Modern Pterodactyl 1. e4 g6 2. d4 Bg7 3. Nc3 c5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Modern Defense: Mongredien Defense 1. e4 g6 2. d4 Bg7 3. Nc3 b6 e2e4 g7g6 d2d4 f8g7 b1c3 b7b6 rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Modern Defense: Mongredien Defense 1. e4 g6 2. d4 Bg7 3. Nf3 b6 e2e4 g7g6 d2d4 f8g7 g1f3 b7b6 rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B06 Modern Defense: Norwegian Defense 1. e4 g6 2. d4 Nf6 e2e4 g7g6 d2d4 g8f6 rnbqkb1r/pppppp1p/5np1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B06 Modern Defense: Norwegian Defense, Norwegian Gambit 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. Be2 d6 e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 f1e2 d7d6 rnbqkb1r/ppp1pp1p/3p2p1/4P2n/3P4/8/PPP1BPPP/RNBQK1NR w KQkq - +B06 Modern Defense: Pseudo-Austrian Attack 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 f2f4 rnbqk1nr/ppp1ppbp/3p2p1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - +B06 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nf3 d6 5. Be2 Qa5+ e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 g1f3 d7d6 f1e2 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/5N2/PP2BPPP/RNBQK2R w KQkq - +B06 Modern Defense: Standard Defense 1. e4 g6 2. d4 Bg7 3. Nc3 d6 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Modern Defense: Standard Line 1. e4 g6 2. d4 Bg7 3. Nc3 e2e4 g7g6 d2d4 f8g7 b1c3 rnbqk1nr/ppppppbp/6p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B06 Modern Defense: Three Pawns Attack 1. e4 g6 2. d4 Bg7 3. f4 e2e4 g7g6 d2d4 f8g7 f2f4 rnbqk1nr/ppppppbp/6p1/8/3PPP2/8/PPP3PP/RNBQKBNR b KQkq - +B06 Modern Defense: Two Knights Variation 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B06 Modern Defense: Two Knights Variation, Suttles Variation 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 g1f3 d7d6 rnbqk1nr/pp2ppbp/2pp2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B06 Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6 5. Bg5 Qb6 6. Qd2 Qxb2 e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 c7c6 c1g5 d8b6 d1d2 b6b2 rnb1k1nr/pp2ppbp/2pp2p1/6B1/3PP3/2N2N2/PqPQ1PPP/R3KB1R w KQkq - +B06 Modern Defense: Westermann Gambit 1. e4 g6 2. d4 Bg7 3. Bd2 e2e4 g7g6 d2d4 f8g7 c1d2 rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPPB1PPP/RN1QKBNR b KQkq - +B06 Modern Defense: Wind Gambit 1. e4 g6 2. d4 Bg7 3. Bd3 e2e4 g7g6 d2d4 f8g7 f1d3 rnbqk1nr/ppppppbp/6p1/8/3PP3/3B4/PPP2PPP/RNBQK1NR b KQkq - +B06 Norwegian Defense 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. g4 Ng7 e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 g2g4 h5g7 rnbqkb1r/ppppppnp/6p1/4P3/3P2P1/8/PPP2P1P/RNBQKBNR w KQkq - +B06 Pterodactyl Defense: Austrian, Austriadactylus Western 1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+ e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/5N2/PPP3PP/RNBQKB1R w KQkq - +B06 Pterodactyl Defense: Austrian, Grand Prix Pterodactyl 1. e4 g6 2. Nc3 Bg7 3. f4 c5 4. Nf3 Qa5 e2e4 g7g6 b1c3 f8g7 f2f4 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/4PP2/2N2N2/PPPP2PP/R1BQKB1R w KQkq - +B06 Pterodactyl Defense: Austrian, Pteranodon 1. e4 g6 2. d4 Bg7 3. f4 c5 4. c3 Qa5 e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 c2c3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/2P5/PP4PP/RNBQKBNR w KQkq - +B06 Pterodactyl Defense: Central, Anhanguera 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. Be3 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 c1e3 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N1B3/PP3PPP/R2QKBNR w KQkq - +B06 Pterodactyl Defense: Central, Benoni Quetzalcoatlus 1. e4 g6 2. d4 Bg7 3. c4 c5 4. d5 d6 5. Nc3 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 d4d5 d7d6 b1c3 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1pP4/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Central, Quetzalcoatlus Gambit 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5 e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 d4c5 d8a5 rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Anhanguera 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Be3 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 c1e3 rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq - +B06 Pterodactyl Defense: Eastern, Benoni 1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. d5 d2d4 g7g6 e2e4 f8g7 b1c3 c7c5 d4d5 rnbqk1nr/pp1pppbp/6p1/2pP4/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B06 Pterodactyl Defense: Eastern, Benoni Pteranodon 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1pP4/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Benoni Pterodactyl 1. d4 g6 2. Nc3 Bg7 3. e4 c5 4. d5 Qa5 d2d4 g7g6 b1c3 f8g7 e2e4 c7c5 d4d5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Pteranodon 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Bxc3+ 5. bxc3 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 g7c3 b2c3 d8a5 rnb1k1nr/pp1ppp1p/6p1/q1P5/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Pterodactyl 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B06 Pterodactyl Defense: Eastern, Rhamphorhynchus 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 rnbqk1nr/pp1pppbp/6p1/2P5/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B06 Pterodactyl Defense: Fianchetto, King Pterodactyl 1. e4 g6 2. d4 Bg7 3. g3 c5 4. Nf3 Qa5+ e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 g1f3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/5NP1/PPP2P1P/RNBQKB1R w KQkq - +B06 Pterodactyl Defense: Fianchetto, Rhamphorhynchus 1. e4 g6 2. d4 Bg7 3. g3 c5 4. dxc5 Qa5+ e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/6P1/PPP2P1P/RNBQKBNR w KQkq - +B06 Pterodactyl Defense: Sicilian, Quetzalcoatlus 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Be2 d6 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1e2 d7d6 rnb1k1nr/pp2ppbp/3p2p1/q1p5/3PP3/2N2N2/PPP1BPPP/R1BQK2R w KQkq - +B06 Pterodactyl Defense: Sicilian, Siroccopteryx 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Bc4 e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1c4 rnb1k1nr/pp1pppbp/6p1/q1p5/2BPP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +B06 Pterodactyl Defense: Western, Anhanguera 1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. Be3 Qa5+ e2e4 g7g6 d2d4 f8g7 g1f3 c7c5 c1e3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/4BN2/PPP2PPP/RN1QKB1R w KQkq - +B06 Pterodactyl Defense: Western, Siroccopteryx 1. e4 g6 2. Nf3 Bg7 3. d4 c5 4. Bc4 cxd4 5. Nxd4 Qa5+ e2e4 g7g6 g1f3 f8g7 d2d4 c7c5 f1c4 c5d4 f3d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q7/2BNP3/8/PPP2PPP/RNBQK2R w KQkq - +B06 Rat Defense: Accelerated Gurgenidze 1. e4 g6 2. d4 d6 3. Nc3 c6 e2e4 g7g6 d2d4 d7d6 b1c3 c7c6 rnbqkbnr/pp2pp1p/2pp2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B07 Czech Defense 1. e4 d6 2. d4 Nf6 3. Nc3 c6 e2e4 d7d6 d2d4 g8f6 b1c3 c7c6 rnbqkb1r/pp2pppp/2pp1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B07 Lion Defense: Anti-Philidor 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 r1bqkb1r/pppnpppp/3p1n2/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - +B07 Lion Defense: Anti-Philidor, Lion's Cave 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5 r1bqkb1r/pppn1ppp/3p1n2/4p3/3PPP2/2N5/PPP3PP/R1BQKBNR w KQkq - +B07 Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Qxd4 c6 7. Bc4 d5 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5 g1f3 e5d4 d1d4 c7c6 f1c4 d6d5 r1bqkb1r/pp1n1ppp/2p2n2/3p4/2BQPP2/2N2N2/PPP3PP/R1B1K2R w KQkq - +B07 Lion Defense: Bayonet Attack 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. g4 e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 g2g4 r1bqkb1r/pppnpppp/3p1n2/8/3PP1P1/2N5/PPP2P1P/R1BQKBNR b KQkq - +B07 Modern Defense: Geller's System 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 e2e4 g7g6 d2d4 f8g7 g1f3 d7d6 c2c3 rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B07 Philidor Defense: Lion Variation, Lion's Claw 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Be2 Nbd7 5. Nf3 e5 6. O-O Be7 e2e4 d7d6 d2d4 g8f6 b1c3 c7c6 f1e2 b8d7 g1f3 e7e5 e1g1 f8e7 r1bqk2r/pp1nbppp/2pp1n2/4p3/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w kq - +B07 Pirc Defense 1. e4 d6 2. d4 Nf6 3. Nc3 e2e4 d7d6 d2d4 g8f6 b1c3 rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B07 Pirc Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B07 Pirc Defense: 150 Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2 rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B3/PPPQ1PPP/R3KBNR b KQkq - +B07 Pirc Defense: 150 Attack, Inner Doll Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 Bg4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2 c8g4 rn1qkb1r/pp2pp1p/2pp1np1/8/3PP1b1/2N1B3/PPPQ1PPP/R3KBNR w KQkq - +B07 Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. h3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 h2h3 rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B2P/PPP2PP1/R2QKBNR b KQkq - +B07 Pirc Defense: Bayonet Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 h2h4 rnbqk2r/ppp1ppbp/3p1np1/8/3PP2P/2N5/PPP1BPP1/R1BQK1NR b KQkq - +B07 Pirc Defense: Byrne Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1g5 rnbqkb1r/ppp1pp1p/3p1np1/6B1/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq - +B07 Pirc Defense: Chinese Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 g2g4 rnbqk2r/ppp1ppbp/3p1np1/8/3PP1P1/2N5/PPP1BP1P/R1BQK1NR b KQkq - +B07 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP1BPPP/R1BQK1NR b KQkq - +B07 Pirc Defense: Kholmov System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1c4 rnbqkb1r/ppp1pp1p/3p1np1/8/2BPP3/2N5/PPP2PPP/R1BQK1NR b KQkq - +B07 Pirc Defense: Sveshnikov System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g2g3 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N3P1/PPP2P1P/R1BQKBNR b KQkq - +B08 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B08 Pirc Defense: Classical Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B08 Pirc Defense: Classical Variation, Quiet System 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQK2R b KQkq - +B08 Pirc Defense: Classical Variation, Quiet System, Chigorin Line 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Nc6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w - - +B08 Pirc Defense: Classical Variation, Quiet System, Czech Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c7c6 rnbq1rk1/pp2ppbp/2pp1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w - - +B08 Pirc Defense: Classical Variation, Quiet System, Parma Defense 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Bg4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c8g4 rn1q1rk1/ppp1ppbp/3p1np1/8/3PP1b1/2N2N2/PPP1BPPP/R1BQ1RK1 w - - +B08 Pirc Defense: Classical Variation, Schlechter Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 h2h3 rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N1P/PPP2PP1/R1BQKB1R b KQkq - +B09 Pirc Defense: Austrian Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 rnbqkb1r/ppp1pp1p/3p1np1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - +B09 Pirc Defense: Austrian Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQ - +B09 Pirc Defense: Austrian Attack, Dragon Formation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 c7c5 rnbqk2r/pp2ppbp/3p1np1/2p5/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQkq - +B09 Pirc Defense: Austrian Attack, Kurajica Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 c1e3 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N1BN2/PPP3PP/R2QKB1R b KQ - +B09 Pirc Defense: Austrian Attack, Ljubojevic Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bc4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 f1c4 rnbqk2r/ppp1ppbp/3p1np1/8/2BPPP2/2N5/PPP3PP/R1BQK1NR b KQkq - +B09 Pirc Defense: Austrian Attack, Unzicker Attack 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5 rnbq1rk1/ppp1ppbp/3p1np1/4P3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQ - +B09 Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 Nfd7 7. h4 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5 f6d7 h2h4 rnbq1rk1/pppnppbp/3p2p1/4P3/3P1P1P/2N2N2/PPP3P1/R1BQKB1R b KQ - +B09 Pirc Defense: Austrian Attack, Weiss Variation 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 f1d3 rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2NB1N2/PPP3PP/R1BQK2R b KQ - +B10 Caro-Kann Defense 1. e4 c6 e2e4 c7c6 rnbqkbnr/pp1ppppp/2p5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense 1. e4 c6 2. Nc3 e2e4 c7c6 b1c3 rnbqkbnr/pp1ppppp/2p5/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - +B10 Caro-Kann Defense 1. e4 c6 2. Nc3 d5 e2e4 c7c6 b1c3 d7d5 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack 1. e4 c6 2. c4 e2e4 c7c6 c2c4 rnbqkbnr/pp1ppppp/2p5/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack 1. e4 c6 2. c4 d5 e2e4 c7c6 c2c4 d7d5 rnbqkbnr/pp2pppp/2p5/3p4/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack, Modern Variation 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 e2e4 c7c6 c2c4 d7d5 e4d5 c6d5 c4d5 g8f6 rnbqkb1r/pp2pppp/5n2/3P4/8/8/PP1P1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack, Open Variation 1. e4 c6 2. c4 e5 e2e4 c7c6 c2c4 e7e5 rnbqkbnr/pp1p1ppp/2p5/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack, Pseudo-Scandinavian 1. e4 c6 2. c4 d5 3. exd5 Qxd5 e2e4 c7c6 c2c4 d7d5 e4d5 d8d5 rnb1kbnr/pp2pppp/2p5/3q4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - +B10 Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack 1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. Qb3 e2e4 c7c6 c2c4 d7d5 c4d5 c6d5 d1b3 rnbqkbnr/pp2pppp/8/3p4/4P3/1Q6/PP1P1PPP/RNB1KBNR b KQkq - +B10 Caro-Kann Defense: Breyer Variation 1. e4 c6 2. d3 e2e4 c7c6 d2d3 rnbqkbnr/pp1ppppp/2p5/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Breyer Variation, Stein Attack 1. e4 c6 2. d3 d5 3. Nd2 g6 4. Ngf3 Bg7 5. g3 e5 6. Bg2 Ne7 7. O-O O-O 8. b4 e2e4 c7c6 d2d3 d7d5 b1d2 g7g6 g1f3 f8g7 g2g3 e7e5 f1g2 g8e7 e1g1 e8g8 b2b4 rnbq1rk1/pp2npbp/2p3p1/3pp3/1P2P3/3P1NP1/P1PN1PBP/R1BQ1RK1 b - - +B10 Caro-Kann Defense: Euwe Attack 1. e4 c6 2. b3 e2e4 c7c6 b2b3 rnbqkbnr/pp1ppppp/2p5/8/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Goldman Variation 1. e4 c6 2. Nc3 d5 3. Qf3 e2e4 c7c6 b1c3 d7d5 d1f3 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2Q2/PPPP1PPP/R1B1KBNR b KQkq - +B10 Caro-Kann Defense: Hector Gambit 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Ng5 e2e4 c7c6 b1c3 d7d5 g1f3 d5e4 f3g5 rnbqkbnr/pp2pppp/2p5/6N1/4p3/2N5/PPPP1PPP/R1BQKB1R b KQkq - +B10 Caro-Kann Defense: Hillbilly Attack 1. e4 c6 2. Bc4 e2e4 c7c6 f1c4 rnbqkbnr/pp1ppppp/2p5/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - +B10 Caro-Kann Defense: Hillbilly Attack, Schaeffer Gambit 1. e4 c6 2. Bc4 d5 3. Bb3 dxe4 4. Qh5 e2e4 c7c6 f1c4 d7d5 c4b3 d5e4 d1h5 rnbqkbnr/pp2pppp/2p5/7Q/4p3/1B6/PPPP1PPP/RNB1K1NR b KQkq - +B10 Caro-Kann Defense: Labahn Attack 1. e4 c6 2. b4 e2e4 c7c6 b2b4 rnbqkbnr/pp1ppppp/2p5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Labahn Attack, Double Gambit 1. e4 c6 2. b4 d5 3. b5 e2e4 c7c6 b2b4 d7d5 b4b5 rnbqkbnr/pp2pppp/2p5/1P1p4/4P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Labahn Attack, Polish Variation 1. e4 c6 2. b4 e5 3. Bb2 e2e4 c7c6 b2b4 e7e5 c1b2 rnbqkbnr/pp1p1ppp/2p5/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - +B10 Caro-Kann Defense: Scorpion-Horus Gambit 1. e4 c6 2. Nc3 d5 3. d3 dxe4 4. Bg5 e2e4 c7c6 b1c3 d7d5 d2d3 d5e4 c1g5 rnbqkbnr/pp2pppp/2p5/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq - +B10 Caro-Kann Defense: Spike Variation 1. e4 c6 2. g4 e2e4 c7c6 g2g4 rnbqkbnr/pp1ppppp/2p5/8/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Spike Variation, Scorpion-Grob Gambit 1. e4 c6 2. g4 d5 3. Nc3 dxe4 4. d3 e2e4 c7c6 g2g4 d7d5 b1c3 d5e4 d2d3 rnbqkbnr/pp2pppp/2p5/8/4p1P1/2NP4/PPP2P1P/R1BQKBNR b KQkq - +B10 Caro-Kann Defense: Toikkanen Gambit 1. e4 c6 2. c4 d5 3. e5 e2e4 c7c6 c2c4 d7d5 e4e5 rnbqkbnr/pp2pppp/2p5/3pP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq - +B10 Caro-Kann Defense: Two Knights Attack 1. e4 c6 2. Nc3 d5 3. Nf3 e2e4 c7c6 b1c3 d7d5 g1f3 rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +B11 Caro-Kann Defense: Two Knights Attack, Mindeno Variation 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 e2e4 c7c6 b1c3 d7d5 g1f3 c8g4 rn1qkbnr/pp2pppp/2p5/3p4/4P1b1/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +B11 Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 e2e4 c7c6 b1c3 d7d5 g1f3 c8g4 h2h3 g4f3 rn1qkbnr/pp2pppp/2p5/3p4/4P3/2N2b1P/PPPP1PP1/R1BQKB1R w KQkq - +B11 Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bh5 e2e4 c7c6 b1c3 d7d5 g1f3 c8g4 h2h3 g4h5 rn1qkbnr/pp2pppp/2p5/3p3b/4P3/2N2N1P/PPPP1PP1/R1BQKB1R w KQkq - +B12 Caro-Kann Defense 1. e4 c6 2. d4 e2e4 c7c6 d2d4 rnbqkbnr/pp1ppppp/2p5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +B12 Caro-Kann Defense 1. e4 c6 2. d4 d5 e2e4 c7c6 d2d4 d7d5 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: Advance Variation 1. e4 c6 2. d4 d5 3. e5 e2e4 c7c6 d2d4 d7d5 e4e5 rnbqkbnr/pp2pppp/2p5/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Bayonet Attack 1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 g2g4 rn1qkbnr/pp2pppp/2p5/3pPb2/3P2P1/8/PPP2P1P/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense 1. e4 c6 2. d4 d5 3. e5 c5 e2e4 c7c6 d2d4 d7d5 e4e5 c6c5 rnbqkbnr/pp2pppp/8/2ppP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: Advance Variation, Bronstein Variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 g1e2 rn1qkbnr/pp2pppp/2p5/3pPb2/3P4/8/PPP1NPPP/RNBQKB1R b KQkq - +B12 Caro-Kann Defense: Advance Variation, Prins Attack 1. e4 c6 2. d4 d5 3. e5 Bf5 4. b4 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 b2b4 rn1qkbnr/pp2pppp/2p5/3pPb2/1P1P4/8/P1P2PPP/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Short Variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 g1f3 rn1qkbnr/pp2pppp/2p5/3pPb2/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq - +B12 Caro-Kann Defense: Advance Variation, Tal Variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 h2h4 rn1qkbnr/pp2pppp/2p5/3pPb2/3P3P/8/PPP2PP1/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Van der Wiel Attack 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 b1c3 rn1qkbnr/pp2pppp/2p5/3pPb2/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +B12 Caro-Kann Defense: Advance Variation, Van der Wiel Attack 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 b1c3 e7e6 g2g4 f5g6 g1e2 c6c5 h2h4 rn1qkbnr/pp3ppp/4p1b1/2ppP3/3P2PP/2N5/PPP1NP2/R1BQKB1R b KQkq - +B12 Caro-Kann Defense: Advance Variation, Van der Wiel Attack, Dreyev Defense 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 Qb6 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 b1c3 d8b6 rn2kbnr/pp2pppp/1qp5/3pPb2/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +B12 Caro-Kann Defense: Advance, Short Variation 1. e4 c6 2. d4 d5 3. e5 Bf5 4. c3 e6 5. Be2 e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 c2c3 e7e6 f1e2 rn1qkbnr/pp3ppp/2p1p3/3pPb2/3P4/2P5/PP2BPPP/RNBQK1NR b KQkq - +B12 Caro-Kann Defense: De Bruycker Defense 1. e4 c6 2. d4 Na6 e2e4 c7c6 d2d4 b8a6 r1bqkbnr/pp1ppppp/n1p5/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: De Bruycker Defense 1. e4 c6 2. d4 Na6 3. Nc3 Nc7 e2e4 c7c6 d2d4 b8a6 b1c3 a6c7 r1bqkbnr/ppnppppp/2p5/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B12 Caro-Kann Defense: Edinburgh Variation 1. e4 c6 2. d4 d5 3. Nd2 Qb6 e2e4 c7c6 d2d4 d7d5 b1d2 d8b6 rnb1kbnr/pp2pppp/1qp5/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +B12 Caro-Kann Defense: Maróczy Variation 1. e4 c6 2. d4 d5 3. f3 e2e4 c7c6 d2d4 d7d5 f2f3 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - +B12 Caro-Kann Defense: Maróczy Variation, Maróczy Gambit 1. e4 c6 2. d4 d5 3. f3 dxe4 4. fxe4 e5 5. Nf3 exd4 6. Bc4 e2e4 c7c6 d2d4 d7d5 f2f3 d5e4 f3e4 e7e5 g1f3 e5d4 f1c4 rnbqkbnr/pp3ppp/2p5/8/2BpP3/5N2/PPP3PP/RNBQK2R b KQkq - +B12 Caro-Kann Defense: Masi Variation 1. e4 c6 2. d4 Nf6 e2e4 c7c6 d2d4 g8f6 rnbqkb1r/pp1ppppp/2p2n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: Massachusetts Defense 1. e4 c6 2. d4 f5 e2e4 c7c6 d2d4 f7f5 rnbqkbnr/pp1pp1pp/2p5/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +B12 Caro-Kann Defense: Mieses Attack, Landau Gambit 1. e4 c6 2. d4 d5 3. Bd3 Nf6 4. e5 Nfd7 5. e6 e2e4 c7c6 d2d4 d7d5 f1d3 g8f6 e4e5 f6d7 e5e6 rnbqkb1r/pp1npppp/2p1P3/3p4/3P4/3B4/PPP2PPP/RNBQK1NR b KQkq - +B12 Caro-Kann Defense: Mieses Gambit 1. e4 c6 2. d4 d5 3. Be3 e2e4 c7c6 d2d4 d7d5 c1e3 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq - +B12 Caro-Kann Defense: Modern Variation 1. e4 c6 2. d4 d5 3. Nd2 e2e4 c7c6 d2d4 d7d5 b1d2 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/8/PPPN1PPP/R1BQKBNR b KQkq - +B12 Caro-Kann Defense: Ulysses Gambit 1. e4 c6 2. d4 d5 3. Nf3 dxe4 4. Ng5 e2e4 c7c6 d2d4 d7d5 g1f3 d5e4 f3g5 rnbqkbnr/pp2pppp/2p5/6N1/3Pp3/8/PPP2PPP/RNBQKB1R b KQkq - +B13 Caro-Kann Defense: Exchange Variation 1. e4 c6 2. d4 d5 3. exd5 e2e4 c7c6 d2d4 d7d5 e4d5 rnbqkbnr/pp2pppp/2p5/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +B13 Caro-Kann Defense: Exchange Variation, Bulla Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. g4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 g2g4 rnbqkbnr/pp2pppp/8/3p4/3P2P1/8/PPP2P1P/RNBQKBNR b KQkq - +B13 Caro-Kann Defense: Exchange Variation, Rubinstein Variation 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 f1d3 b8c6 c2c3 g8f6 c1f4 r1bqkb1r/pp2pppp/2n2n2/3p4/3P1B2/2PB4/PP3PPP/RN1QK1NR b KQkq - +B13 Caro-Kann Defense: Panov Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 rnbqkbnr/pp2pppp/8/3p4/2PP4/8/PP3PPP/RNBQKBNR b KQkq - +B13 Caro-Kann Defense: Panov Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 rnbqkb1r/pp2pppp/5n2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR b KQkq - +B13 Caro-Kann Defense: Panov Attack, Gunderam Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. c5 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 c4c5 rnbqkb1r/pp2pppp/5n2/2Pp4/3P4/8/PP3PPP/RNBQKBNR b KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 r1bqkb1r/pp2pppp/2n2n2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense, Carlsbad Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 e6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 e7e6 r1bqkb1r/pp3ppp/2n1pn2/3p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense, Czerniak Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Qa5 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d8a5 r1b1kb1r/pp2pppp/2n2n2/q2p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense, Mieses Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 g1f3 c8g4 r2qkb1r/pp2pppp/2n2n2/3p4/2PP2b1/2N2N2/PP3PPP/R1BQKB1R w KQkq - +B13 Caro-Kann Defense: Panov Attack, Modern Defense, Reifir-Spielmann Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Qb6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d8b6 r1b1kb1r/pp2pppp/1qn2n2/3p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq - +B13 Caro-Kann Defense: Panov-Botvinnik, Herzog Defense 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 dxc4 7. d5 Na5 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d5c4 d4d5 c6a5 r1bqkb1r/pp2pppp/5n2/n2P2B1/2p5/2N5/PP3PPP/R2QKBNR w KQkq - +B14 Caro-Kann Defense: Panov Attack 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 e7e6 rnbqkb1r/pp3ppp/4pn2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - +B14 Caro-Kann Defense: Panov Attack, Fianchetto Defense 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 g7g6 rnbqkb1r/pp2pp1p/5np1/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - +B14 Caro-Kann Defense: Panov Attack, Fianchetto Defense, Fianchetto Gambit 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Bg7 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 g7g6 c4d5 f8g7 rnbqk2r/pp2ppbp/5np1/3P4/3P4/2N5/PP3PPP/R1BQKBNR w KQkq - +B14 Caro-Kann Defense: Panov Attack, Main Line 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 e7e6 g1f3 f8b4 rnbqk2r/pp3ppp/4pn2/3p4/1bPP4/2N2N2/PP3PPP/R1BQKB1R w KQkq - +B15 Caro-Kann Defense 1. e4 c6 2. d4 d5 3. Nc3 e2e4 c7c6 d2d4 d7d5 b1c3 rnbqkbnr/pp2pppp/2p5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +B15 Caro-Kann Defense: Alekhine Gambit 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Bd3 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 f1d3 rnbqkb1r/pp2pppp/2p2n2/8/3PN3/3B4/PPP2PPP/R1BQK1NR b KQkq - +B15 Caro-Kann Defense: Finnish Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 h6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 h7h6 rnbqkbnr/pp2ppp1/2p4p/8/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +B15 Caro-Kann Defense: Forgacs Variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 e7f6 f1c4 rnbqkb1r/pp3ppp/2p2p2/8/2BP4/8/PPP2PPP/R1BQK1NR b KQkq - +B15 Caro-Kann Defense: Gurgenidze Counterattack 1. e4 c6 2. d4 d5 3. Nc3 b5 e2e4 c7c6 d2d4 d7d5 b1c3 b7b5 rnbqkbnr/p3pppp/2p5/1p1p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B15 Caro-Kann Defense: Gurgenidze System 1. e4 c6 2. d4 d5 3. Nc3 g6 e2e4 c7c6 d2d4 d7d5 b1c3 g7g6 rnbqkbnr/pp2pp1p/2p3p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +B15 Caro-Kann Defense: Main Line 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 rnbqkbnr/pp2pppp/2p5/8/3PN3/8/PPP2PPP/R1BQKBNR b KQkq - +B15 Caro-Kann Defense: Rasa-Studier Gambit 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. f3 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 f2f3 rnbqkbnr/pp2pppp/2p5/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR b KQkq - +B15 Caro-Kann Defense: Tartakower Variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 e7f6 rnbqkb1r/pp3ppp/2p2p2/8/3P4/8/PPP2PPP/R1BQKBNR w KQkq - +B15 Caro-Kann Defense: von Hennig Gambit 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Bc4 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 f1c4 rnbqkbnr/pp2pppp/2p5/8/2BPp3/2N5/PPP2PPP/R1BQK1NR b KQkq - +B16 Caro-Kann Defense: Bronstein-Larsen Variation 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 g7f6 rnbqkb1r/pp2pp1p/2p2p2/8/3P4/8/PPP2PPP/R1BQKBNR w KQkq - +B17 Caro-Kann Defense: Karpov Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 r1bqkbnr/pp1npppp/2p5/8/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +B17 Caro-Kann Defense: Karpov Variation, Modern Main Line 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 Ngf6 6. Bd3 e6 7. N1f3 Bd6 8. Qe2 h6 9. Ne4 Nxe4 10. Qxe4 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 e4g5 g8f6 f1d3 e7e6 g1f3 f8d6 d1e2 h7h6 g5e4 f6e4 e2e4 r1bqk2r/pp1n1pp1/2pbp2p/8/3PQ3/3B1N2/PPP2PPP/R1B1K2R b KQkq - +B17 Caro-Kann Defense: Karpov Variation, Modern Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 e4g5 r1bqkbnr/pp1npppp/2p5/6N1/3P4/8/PPP2PPP/R1BQKBNR b KQkq - +B17 Caro-Kann Defense: Karpov Variation, Modern Variation, Ivanchuk Defense 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 Ndf6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 e4g5 d7f6 r1bqkbnr/pp2pppp/2p2n2/6N1/3P4/8/PPP2PPP/R1BQKBNR w KQkq - +B17 Caro-Kann Defense: Karpov Variation, Modern Variation, Kasparov Attack 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7 g1f3 g8f6 e4g3 r1bqkb1r/pp1npppp/2p2n2/8/3P4/5NN1/PPP2PPP/R1BQKB1R b KQkq - +B17 Caro-Kann Defense: Karpov Variation, Smyslov Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 f1c4 g8f6 e4g5 e7e6 d1e2 d7b6 r1bqkb1r/pp3ppp/1np1pn2/6N1/2BP4/8/PPP1QPPP/R1B1K1NR w KQkq - +B17 Caro-Kann Defense: Karpov Variation, Smyslov Variation, Main Line 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bb3 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 f1c4 g8f6 e4g5 e7e6 d1e2 d7b6 c4b3 r1bqkb1r/pp3ppp/1np1pn2/6N1/3P4/1B6/PPP1QPPP/R1B1K1NR b KQkq - +B17 Caro-Kann Defense: Karpov Variation, Tiviakov-Fischer Attack 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Nxf6+ Nxf6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 f1c4 g8f6 e4f6 d7f6 r1bqkb1r/pp2pppp/2p2n2/8/2BP4/8/PPP2PPP/R1BQK1NR w KQkq - +B18 Caro-Kann Defense: Classical Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 rn1qkbnr/pp2pppp/2p5/5b2/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +B18 Caro-Kann Defense: Classical Variation, Flohr Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 g1h3 rn1qkbnr/pp2pppp/2p3b1/8/3P4/6NN/PPP2PPP/R1BQKB1R b KQkq - +B18 Caro-Kann Defense: Classical Variation, Main Line 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 rn1qkbnr/pp2pppp/2p3b1/8/3P3P/6N1/PPP2PP1/R1BQKBNR b KQkq - +B18 Caro-Kann Defense: Classical Variation, Maróczy Attack 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. f4 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 f2f4 rn1qkbnr/pp2pppp/2p3b1/8/3P1P2/6N1/PPP3PP/R1BQKBNR b KQkq - +B19 Caro-Kann Defense: Classical Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 r2qkbnr/pp1nppp1/2p3bp/8/3P3P/5NN1/PPP2PP1/R1BQKB1R w KQkq - +B19 Caro-Kann Defense: Classical Variation, Lobron System 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Be7 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 h4h5 g6h7 f1d3 h7d3 d1d3 e7e6 c1d2 g8f6 e1c1 f8e7 r2qk2r/pp1nbpp1/2p1pn1p/7P/3P4/3Q1NN1/PPPB1PP1/2KR3R w kq - +B19 Caro-Kann Defense: Classical Variation, Seirawan Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. O-O-O Bd6 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 h4h5 g6h7 f1d3 h7d3 d1d3 g8f6 c1d2 e7e6 e1c1 f8d6 r2qk2r/pp1n1pp1/2pbpn1p/7P/3P4/3Q1NN1/PPPB1PP1/2KR3R w kq - +B19 Caro-Kann Defense: Classical Variation, Spassky Variation 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 e2e4 c7c6 d2d4 d7d5 b1d2 d5e4 d2e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 h4h5 r2qkbnr/pp1nppp1/2p3bp/7P/3P4/5NN1/PPP2PP1/R1BQKB1R b KQkq - +B20 Caro-Kann Defense: Euwe Attack, Prins Gambit 1. e4 c5 2. b3 d5 3. Bb2 e2e4 c7c5 b2b3 d7d5 c1b2 rnbqkbnr/pp2pppp/8/2pp4/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq - +B20 Sicilian Defense 1. e4 c5 e2e4 c7c5 rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +B20 Sicilian Defense: Amazon Attack 1. e4 c5 2. Qg4 e2e4 c7c5 d1g4 rnbqkbnr/pp1ppppp/8/2p5/4P1Q1/8/PPPP1PPP/RNB1KBNR b KQkq - +B20 Sicilian Defense: Big Clamp Formation 1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4 e2e4 c7c5 d2d3 b8c6 c2c3 d7d6 f2f4 r1bqkbnr/pp2pppp/2np4/2p5/4PP2/2PP4/PP4PP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Bowdler Attack 1. e4 c5 2. Bc4 e2e4 c7c5 f1c4 rnbqkbnr/pp1ppppp/8/2p5/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - +B20 Sicilian Defense: Brick Variation 1. e4 c5 2. Nh3 e2e4 c7c5 g1h3 rnbqkbnr/pp1ppppp/8/2p5/4P3/7N/PPPP1PPP/RNBQKB1R b KQkq - +B20 Sicilian Defense: Gloria Variation 1. e4 c5 2. c4 d6 3. Nc3 Nc6 4. g3 h5 e2e4 c7c5 c2c4 d7d6 b1c3 b8c6 g2g3 h7h5 r1bqkbnr/pp2ppp1/2np4/2p4p/2P1P3/2N3P1/PP1P1P1P/R1BQKBNR w KQkq - +B20 Sicilian Defense: Grob Variation 1. e4 c5 2. g4 e2e4 c7c5 g2g4 rnbqkbnr/pp1ppppp/8/2p5/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq - +B20 Sicilian Defense: Keres Variation 1. e4 c5 2. Ne2 e2e4 c7c5 g1e2 rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPPNPPP/RNBQKB1R b KQkq - +B20 Sicilian Defense: King David's Opening 1. e4 c5 2. Ke2 e2e4 c7c5 e1e2 rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPPKPPP/RNBQ1BNR b kq - +B20 Sicilian Defense: Kronberger Variation 1. e4 c5 2. Na3 e2e4 c7c5 b1a3 rnbqkbnr/pp1ppppp/8/2p5/4P3/N7/PPPP1PPP/R1BQKBNR b KQkq - +B20 Sicilian Defense: Kronberger Variation, Nemeth Gambit 1. e4 c5 2. Na3 Nc6 3. d4 cxd4 4. Bc4 e2e4 c7c5 b1a3 b8c6 d2d4 c5d4 f1c4 r1bqkbnr/pp1ppppp/2n5/8/2BpP3/N7/PPP2PPP/R1BQK1NR b KQkq - +B20 Sicilian Defense: Lasker-Dunne Attack 1. e4 c5 2. g3 e2e4 c7c5 g2g3 rnbqkbnr/pp1ppppp/8/2p5/4P3/6P1/PPPP1P1P/RNBQKBNR b KQkq - +B20 Sicilian Defense: Mengarini Variation 1. e4 c5 2. a3 e2e4 c7c5 a2a3 rnbqkbnr/pp1ppppp/8/2p5/4P3/P7/1PPP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Myers Attack 1. e4 c5 2. a4 e2e4 c7c5 a2a4 rnbqkbnr/pp1ppppp/8/2p5/P3P3/8/1PPP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Myers Attack 1. e4 c5 2. h4 e2e4 c7c5 h2h4 rnbqkbnr/pp1ppppp/8/2p5/4P2P/8/PPPP1PP1/RNBQKBNR b KQkq - +B20 Sicilian Defense: Snyder Variation 1. e4 c5 2. b3 e2e4 c7c5 b2b3 rnbqkbnr/pp1ppppp/8/2p5/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Snyder Variation, Queen Fianchetto Variation 1. e4 c5 2. b3 b6 e2e4 c7c5 b2b3 b7b6 rnbqkbnr/p2ppppp/1p6/2p5/4P3/1P6/P1PP1PPP/RNBQKBNR w KQkq - +B20 Sicilian Defense: Staunton-Cochrane Variation 1. e4 c5 2. c4 e2e4 c7c5 c2c4 rnbqkbnr/pp1ppppp/8/2p5/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit 1. e4 c5 2. b4 e2e4 c7c5 b2b4 rnbqkbnr/pp1ppppp/8/2p5/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit, Abrahams Variation 1. e4 c5 2. b4 cxb4 3. Bb2 e2e4 c7c5 b2b4 c5b4 c1b2 rnbqkbnr/pp1ppppp/8/8/1p2P3/8/PBPP1PPP/RN1QKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit, Carlsbad Variation 1. e4 c5 2. b4 cxb4 3. a3 bxa3 e2e4 c7c5 b2b4 c5b4 a2a3 b4a3 rnbqkbnr/pp1ppppp/8/8/4P3/p7/2PP1PPP/RNBQKBNR w KQkq - +B20 Sicilian Defense: Wing Gambit, Marienbad Variation 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2 e2e4 c7c5 b2b4 c5b4 a2a3 d7d5 e4d5 d8d5 c1b2 rnb1kbnr/pp2pppp/8/3q4/1p6/P7/1BPP1PPP/RN1QKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit, Marshall Variation 1. e4 c5 2. b4 cxb4 3. a3 e2e4 c7c5 b2b4 c5b4 a2a3 rnbqkbnr/pp1ppppp/8/8/1p2P3/P7/2PP1PPP/RNBQKBNR b KQkq - +B20 Sicilian Defense: Wing Gambit, Nanu Gambit 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3 e2e4 c7c5 b2b4 c5b4 a2a3 d7d5 e4d5 d8d5 g1f3 e7e5 c2c4 d5e6 f1d3 rnb1kbnr/pp3ppp/4q3/4p3/1pP5/P2B1N2/3P1PPP/RNBQK2R b KQkq - +B20 Sicilian Defense: Wing Gambit, Romanian Defense 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. Bb2 Nc6 7. c4 Qe6 e2e4 c7c5 b2b4 c5b4 a2a3 d7d5 e4d5 d8d5 g1f3 e7e5 c1b2 b8c6 c2c4 d5e6 r1b1kbnr/pp3ppp/2n1q3/4p3/1pP5/P4N2/1B1P1PPP/RN1QKB1R w KQkq - +B20 Sicilian Defense: Wing Gambit, Santasiere Variation 1. e4 c5 2. b4 cxb4 3. c4 e2e4 c7c5 b2b4 c5b4 c2c4 rnbqkbnr/pp1ppppp/8/8/1pP1P3/8/P2P1PPP/RNBQKBNR b KQkq c3 +B21 Bird Opening: Dutch Variation, Batavo Gambit 1. e4 c5 2. f4 d5 3. Nf3 dxe4 e2e4 c7c5 f2f4 d7d5 g1f3 d5e4 rnbqkbnr/pp2pppp/8/2p5/4pP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +B21 Sicilian Defense: Coles Sicilian Gambit 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Bc4 e2e4 c7c5 d2d4 c5d4 d1d4 b8c6 d4d1 g8f6 f1c4 r1bqkb1r/pp1ppppp/2n2n2/8/2B1P3/8/PPP2PPP/RNBQK1NR b KQkq - +B21 Sicilian Defense: Halasz Gambit 1. e4 c5 2. d4 cxd4 3. f4 e2e4 c7c5 d2d4 c5d4 f2f4 rnbqkbnr/pp1ppppp/8/8/3pPP2/8/PPP3PP/RNBQKBNR b KQkq - +B21 Sicilian Defense: McDonnell Attack 1. e4 c5 2. f4 e2e4 c7c5 f2f4 rnbqkbnr/pp1ppppp/8/2p5/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +B21 Sicilian Defense: McDonnell Attack, Tal Gambit 1. e4 c5 2. f4 d5 3. exd5 Nf6 e2e4 c7c5 f2f4 d7d5 e4d5 g8f6 rnbqkb1r/pp2pppp/5n2/2pP4/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Morphy Gambit 1. d4 c5 2. e4 cxd4 3. Nf3 d2d4 c7c5 e2e4 c5d4 g1f3 rnbqkbnr/pp1ppppp/8/8/3pP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B21 Sicilian Defense: Morphy Gambit, Andreaschek Gambit 1. d4 c5 2. e4 cxd4 3. Nf3 e5 4. c3 d2d4 c7c5 e2e4 c5d4 g1f3 e7e5 c2c3 rnbqkbnr/pp1p1ppp/8/4p3/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B21 Sicilian Defense: Smith-Morra Gambit 1. e4 c5 2. d4 e2e4 c7c5 d2d4 rnbqkbnr/pp1ppppp/8/2p5/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +B21 Sicilian Defense: Smith-Morra Gambit 1. e4 c5 2. d4 cxd4 3. c3 e2e4 c7c5 d2d4 c5d4 c2c3 rnbqkbnr/pp1ppppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR b KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Chicago Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Nf3 e6 6. Bc4 Nf6 7. O-O a6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 d7d6 g1f3 e7e6 f1c4 g8f6 e1g1 a7a6 rnbqkb1r/1p3ppp/p2ppn2/8/2B1P3/2N2N2/PP3PPP/R1BQ1RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Classical Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 a6 7. O-O Nf6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 d7d6 f1c4 a7a6 e1g1 g8f6 r1bqkb1r/1p2pppp/p1np1n2/8/2B1P3/2N2N2/PP3PPP/R1BQ1RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Fianchetto Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 g7g6 r1bqkbnr/pp1ppp1p/2n3p1/8/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Kan Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 a6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 e7e6 g1f3 a7a6 rnbqkbnr/1p1p1ppp/p3p3/8/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Larsen Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Qc7 7. Qe2 a6 8. O-O Bd6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 d8c7 d1e2 a7a6 e1g1 f8d6 r1b1k1nr/1pqp1ppp/p1nbp3/8/2B1P3/2N2N2/PP2QPPP/R1B2RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bc5 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 f8c5 r1bqk1nr/pp1p1ppp/2n1p3/2b5/2B1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense Deferred 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 7. O-O b5 8. Bb3 Bc5 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 a7a6 e1g1 b7b5 c4b3 f8c5 r1bqk1nr/3p1ppp/p1n1p3/1pb5/4P3/1BN2N2/PP3PPP/R1BQ1RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 a7a6 r1bqkbnr/1p1p1ppp/p1n1p3/8/2B1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Pin Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bb4 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 e7e6 f1c4 f8b4 r1bqk1nr/pp1p1ppp/2n1p3/8/1bB1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Scheveningen Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 d7d6 f1c4 e7e6 r1bqkbnr/pp3ppp/2npp3/8/2B1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Sozin Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 e6 6. Nf3 d6 7. O-O a6 8. Qe2 b5 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 f1c4 e7e6 g1f3 d7d6 e1g1 a7a6 d1e2 b7b5 r1bqkbnr/5ppp/p1npp3/1p6/2B1P3/2N2N2/PP2QPPP/R1B2RK1 w kq - +B21 Sicilian Defense: Smith-Morra Gambit Accepted, Taimanov Formation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 a6 6. Nf3 Ne7 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 e7e6 f1c4 a7a6 g1f3 g8e7 rnbqkb1r/1p1pnppp/p3p3/8/2B1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Alapin Formation 1. e4 c5 2. d4 cxd4 3. c3 Nf6 e2e4 c7c5 d2d4 c5d4 c2c3 g8f6 rnbqkb1r/pp1ppppp/5n2/8/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Dubois Variation 1. e4 c5 2. d4 cxd4 3. c3 d3 4. c4 e2e4 c7c5 d2d4 c5d4 c2c3 d4d3 c3c4 rnbqkbnr/pp1ppppp/8/8/2P1P3/3p4/PP3PPP/RNBQKBNR b KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Push Variation 1. e4 c5 2. d4 cxd4 3. c3 d3 e2e4 c7c5 d2d4 c5d4 c2c3 d4d3 rnbqkbnr/pp1ppppp/8/8/4P3/2Pp4/PP3PPP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Scandinavian Formation 1. e4 c5 2. d4 cxd4 3. c3 d5 e2e4 c7c5 d2d4 c5d4 c2c3 d7d5 rnbqkbnr/pp2pppp/8/3p4/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation 1. e4 c5 2. d4 cxd4 3. c3 Qa5 e2e4 c7c5 d2d4 c5d4 c2c3 d8a5 rnb1kbnr/pp1ppppp/8/q7/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +B21 Sicilian Defense: Smith-Morra Gambit, Chicago Defense 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 e6 6. Nf3 d6 7. O-O a6 8. Qe2 b5 9. Bb3 Ra7 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 f1c4 e7e6 g1f3 d7d6 e1g1 a7a6 d1e2 b7b5 c4b3 a8a7 2bqkbnr/r4ppp/p1npp3/1p6/4P3/1BN2N2/PP2QPPP/R1B2RK1 w k - +B21 Sicilian Defense: Smith-Morra Gambit, Danish Variation 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nf3 e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 g1f3 rnbqkbnr/pp1ppppp/8/8/4P3/2p2N2/PP3PPP/RNBQKB1R b KQkq - +B22 Sicilian Defense: Alapin Variation 1. e4 c5 2. c3 e2e4 c7c5 c2c3 rnbqkbnr/pp1ppppp/8/2p5/4P3/2P5/PP1P1PPP/RNBQKBNR b KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense 1. e4 c5 2. c3 d5 3. exd5 Qxd5 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 rnb1kbnr/pp2pppp/8/2pq4/8/2P5/PP1P1PPP/RNBQKBNR w KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 d2d4 c5d4 c3d4 b8c6 g1f3 c8g4 r3kbnr/pp2pppp/2n5/3q4/3P2b1/5N2/PP3PPP/RNBQKB1R w KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense, Endgame Variation 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Nc3 Bxf3 8. gxf3 Qxd4 9. Qxd4 Nxd4 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 d2d4 c5d4 c3d4 b8c6 g1f3 c8g4 b1c3 g4f3 g2f3 d5d4 d1d4 c6d4 r3kbnr/pp2pppp/8/8/3n4/2N2P2/PP3P1P/R1B1KB1R w KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense, Milner-Barry Attack 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 cxd4 6. cxd4 e5 7. Nc3 Bb4 8. Be2 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 d2d4 b8c6 g1f3 c5d4 c3d4 e7e5 b1c3 f8b4 f1e2 r1b1k1nr/pp3ppp/2n5/3qp3/1b1P4/2N2N2/PP2BPPP/R1BQK2R b KQkq - +B22 Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 e2e4 c7c5 c2c3 d7d5 e4d5 d8d5 d2d4 g8f6 g1f3 c8g4 rn2kb1r/pp2pppp/5n2/2pq4/3P2b1/2P2N2/PP3PPP/RNBQKB1R w KQkq - +B22 Sicilian Defense: Alapin Variation, Smith-Morra Declined 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 d2d4 c5d4 rnbqkb1r/pp1ppppp/8/3nP3/3p4/2P5/PP3PPP/RNBQKBNR w KQkq - +B22 Sicilian Defense: Alapin Variation, Stoltz Attack 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3 e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 g1f3 b8c6 f1c4 d5b6 c4b3 r1bqkb1r/pp1ppppp/1nn5/2p1P3/8/1BP2N2/PP1P1PPP/RNBQK2R b KQkq - +B22 Sicilian Defense: Alapin Variation, Stoltz Attack, Ivanchuk Line 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3 c4 7. Bc2 Qc7 8. Qe2 g5 e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 g1f3 b8c6 f1c4 d5b6 c4b3 c5c4 b3c2 d8c7 d1e2 g7g5 r1b1kb1r/ppqppp1p/1nn5/4P1p1/2p5/2P2N2/PPBPQPPP/RNB1K2R w KQkq - +B22 Sicilian Defense: Heidenfeld Variation 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3 e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 g1f3 b8c6 b1a3 r1bqkb1r/pp1ppppp/2n5/2pnP3/8/N1P2N2/PP1P1PPP/R1BQKB1R b KQkq - +B22 Sicilian Defense: Smith-Morra Gambit Declined, Center Formation 1. e4 c5 2. c3 e5 3. d4 cxd4 e2e4 c7c5 c2c3 e7e5 d2d4 c5d4 rnbqkbnr/pp1p1ppp/8/4p3/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +B23 Sicilian Defense: Closed 1. e4 c5 2. Nc3 e2e4 c7c5 b1c3 rnbqkbnr/pp1ppppp/8/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - +B23 Sicilian Defense: Closed 1. e4 c5 2. Nc3 e6 e2e4 c7c5 b1c3 e7e6 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B23 Sicilian Defense: Closed 1. e4 c5 2. Nc3 e6 3. g3 e2e4 c7c5 b1c3 e7e6 g2g3 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq - +B23 Sicilian Defense: Closed, Chameleon Variation 1. e4 c5 2. Nc3 Nc6 3. Nge2 e2e4 c7c5 b1c3 b8c6 g1e2 r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPPNPPP/R1BQKB1R b KQkq - +B23 Sicilian Defense: Closed, Grob Attack 1. e4 c5 2. Nc3 Nc6 3. g4 e2e4 c7c5 b1c3 b8c6 g2g4 r1bqkbnr/pp1ppppp/2n5/2p5/4P1P1/2N5/PPPP1P1P/R1BQKBNR b KQkq - +B23 Sicilian Defense: Closed, Korchnoi Defense 1. e4 c5 2. Nc3 e6 3. g3 d5 e2e4 c7c5 b1c3 e7e6 g2g3 d7d5 rnbqkbnr/pp3ppp/4p3/2pp4/4P3/2N3P1/PPPP1P1P/R1BQKBNR w KQkq - +B23 Sicilian Defense: Closed, Traditional 1. e4 c5 2. Nc3 Nc6 e2e4 c7c5 b1c3 b8c6 r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +B23 Sicilian Defense: Grand Prix Attack 1. e4 c5 2. Nc3 Nc6 3. f4 e2e4 c7c5 b1c3 b8c6 f2f4 r1bqkbnr/pp1ppppp/2n5/2p5/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +B23 Sicilian Defense: Grand Prix Attack, Schofman Variation 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. f5 e2e4 c7c5 b1c3 b8c6 f2f4 g7g6 g1f3 f8g7 f1c4 e7e6 f4f5 r1bqk1nr/pp1p1pbp/2n1p1p1/2p2P2/2B1P3/2N2N2/PPPP2PP/R1BQK2R b KQkq - +B24 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 r1bqkbnr/pp1ppp1p/2n3p1/2p5/4P3/2N3P1/PPPP1P1P/R1BQKBNR w KQkq - +B24 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 r1bqk1nr/pp1pppbp/2n3p1/2p5/4P3/2N3P1/PPPP1PBP/R1BQK1NR w KQkq - +B24 Sicilian Defense: Closed, Fianchetto Variation 1. e4 c5 2. Nc3 Nc6 3. g3 e2e4 c7c5 b1c3 b8c6 g2g3 r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq - +B24 Sicilian Defense: Closed, Smyslov Variation 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 e7e6 c1e3 c6d4 c3e2 r1bqk1nr/pp1p1pbp/4p1p1/2p5/3nP3/3PB1P1/PPP1NPBP/R2QK1NR b KQkq - +B25 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 r1bqk1nr/pp2ppbp/2np2p1/2p5/4P3/2NP2P1/PPP2PBP/R1BQK1NR w KQkq - +B25 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4 r1bqk1nr/pp2ppbp/2np2p1/2p5/4PP2/2NP2P1/PPP3BP/R1BQK1NR b KQkq - +B25 Sicilian Defense: Closed, Botvinnik Defense 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4 e7e5 r1bqk1nr/pp3pbp/2np2p1/2p1p3/4PP2/2NP2P1/PPP3BP/R1BQK1NR w KQkq - +B25 Sicilian Defense: Closed, Botvinnik Defense 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 g1e2 e7e5 r1bqk1nr/pp3pbp/2np2p1/2p1p3/4P3/2NP2P1/PPP1NPBP/R1BQK2R w KQkq - +B25 Sicilian Defense: Closed, Botvinnik Defense, Edge Variation 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 7. Nh3 Nge7 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4 e7e5 g1h3 g8e7 r1bqk2r/pp2npbp/2np2p1/2p1p3/4PP2/2NP2PN/PPP3BP/R1BQK2R w KQkq - +B26 Sicilian Defense: Closed 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 c1e3 r1bqk1nr/pp2ppbp/2np2p1/2p5/4P3/2NPB1P1/PPP2PBP/R2QK1NR b KQkq - +B27 Modern Defense: Pterodactyl Variation 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +B27 Pterodactyl Defense: Sicilian, Anhanguera 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Be3 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 c1e3 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N1BN2/PPP2PPP/R2QKB1R b KQkq - +B27 Pterodactyl Defense: Sicilian, Benoni Gambit 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. d5 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 d4d5 rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B27 Pterodactyl Defense: Sicilian, Pteranodon 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 b1c3 g7c3 b2c3 rnb1k1nr/pp1ppp1p/6p1/q1P5/4P3/2P2N2/P1P2PPP/R1BQKB1R b KQkq - +B27 Pterodactyl Defense: Sicilian, Rhamphorhynchus 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 b1c3 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B27 Pterodactyl Defense: Sicilian, Unpin 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Bd2 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 b1c3 d8a5 c1d2 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2N2N2/PPPB1PPP/R2QKB1R b KQkq - +B27 Pterodactyl Defense: Western, Pterodactyl 1. e4 c5 2. Nf3 g6 3. c3 Bg7 4. d4 Qa5 e2e4 c7c5 g1f3 g7g6 c2c3 f8g7 d2d4 d8a5 rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/2P2N2/PP3PPP/RNBQKB1R w KQkq - +B27 Pterodactyl Defense: Western, Rhamphorhynchus 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense 1. e4 c5 2. Nf3 e2e4 c7c5 g1f3 rnbqkbnr/pp1ppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +B27 Sicilian Defense: Acton Extension 1. e4 c5 2. Nf3 g6 3. c4 Bh6 e2e4 c7c5 g1f3 g7g6 c2c4 f8h6 rnbqk1nr/pp1ppp1p/6pb/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Brussels Gambit 1. e4 c5 2. Nf3 f5 e2e4 c7c5 g1f3 f7f5 rnbqkbnr/pp1pp1pp/8/2p2p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Bücker Variation 1. e4 c5 2. Nf3 h6 e2e4 c7c5 g1f3 h7h6 rnbqkbnr/pp1pppp1/7p/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Double-Dutch Gambit 1. e4 c5 2. Nf3 f5 3. exf5 Nh6 e2e4 c7c5 g1f3 f7f5 e4f5 g8h6 rnbqkb1r/pp1pp1pp/7n/2p2P2/8/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Frederico Variation 1. e4 c5 2. Nf3 g6 3. d4 f5 e2e4 c7c5 g1f3 g7g6 d2d4 f7f5 rnbqkbnr/pp1pp2p/6p1/2p2p2/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Hyperaccelerated Dragon 1. e4 c5 2. Nf3 g6 e2e4 c7c5 g1f3 g7g6 rnbqkbnr/pp1ppp1p/6p1/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Hyperaccelerated Fianchetto 1. e4 c5 2. Nf3 g6 3. d4 e2e4 c7c5 g1f3 g7g6 d2d4 rnbqkbnr/pp1ppp1p/6p1/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B27 Sicilian Defense: Hyperaccelerated Pterodactyl 1. e4 c5 2. Nf3 g6 3. d4 Bg7 e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 Qxc3+ e2e4 c7c5 g1f3 g7g6 d2d4 f8g7 d4c5 d8a5 b1c3 g7c3 b2c3 a5c3 rnb1k1nr/pp1ppp1p/6p1/2P5/4P3/2q2N2/P1P2PPP/R1BQKB1R w KQkq - +B27 Sicilian Defense: Jalalabad Variation 1. e4 c5 2. Nf3 e5 e2e4 c7c5 g1f3 e7e5 rnbqkbnr/pp1p1ppp/8/2p1p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Katalimov Variation 1. e4 c5 2. Nf3 b6 e2e4 c7c5 g1f3 b7b6 rnbqkbnr/p2ppppp/1p6/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Mongoose Variation 1. e4 c5 2. Nf3 Qa5 e2e4 c7c5 g1f3 d8a5 rnb1kbnr/pp1ppppp/8/q1p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Polish Gambit 1. e4 c5 2. Nf3 b5 e2e4 c7c5 g1f3 b7b5 rnbqkbnr/p2ppppp/8/1pp5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B27 Sicilian Defense: Quinteros Variation 1. e4 c5 2. Nf3 Qc7 e2e4 c7c5 g1f3 d8c7 rnb1kbnr/ppqppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation 1. e4 c5 2. Nf3 a6 e2e4 c7c5 g1f3 a7a6 rnbqkbnr/1p1ppppp/p7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Aronin System 1. e4 c5 2. Nf3 a6 3. Be2 e2e4 c7c5 g1f3 a7a6 f1e2 rnbqkbnr/1p1ppppp/p7/2p5/4P3/5N2/PPPPBPPP/RNBQK2R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Kieseritzky System 1. e4 c5 2. Nf3 a6 3. b3 e2e4 c7c5 g1f3 a7a6 b2b3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Maróczy Bind 1. e4 c5 2. Nf3 a6 3. c4 e2e4 c7c5 g1f3 a7a6 c2c4 rnbqkbnr/1p1ppppp/p7/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line 1. e4 c5 2. Nf3 a6 3. c4 e6 e2e4 c7c5 g1f3 a7a6 c2c4 e7e6 rnbqkbnr/1p1p1ppp/p3p3/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Maróczy Bind, Robatsch Line 1. e4 c5 2. Nf3 a6 3. c4 d6 e2e4 c7c5 g1f3 a7a6 c2c4 d7d6 rnbqkbnr/1p2pppp/p2p4/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System 1. e4 c5 2. Nf3 a6 3. d4 e2e4 c7c5 g1f3 a7a6 d2d4 rnbqkbnr/1p1ppppp/p7/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System, Cortlever Gambit 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Bc4 e2e4 c7c5 g1f3 a7a6 d2d4 c5d4 f1c4 rnbqkbnr/1p1ppppp/p7/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System, Smith-Morra Line 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. c3 e2e4 c7c5 g1f3 a7a6 d2d4 c5d4 c2c3 rnbqkbnr/1p1ppppp/p7/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System, Taimanov Line 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5 e2e4 c7c5 g1f3 a7a6 d2d4 c5d4 f3d4 e7e5 rnbqkbnr/1p1p1ppp/p7/4p3/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Normal System, Zagorovsky Line 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Qxd4 e2e4 c7c5 g1f3 a7a6 d2d4 c5d4 d1d4 rnbqkbnr/1p1ppppp/p7/8/3QP3/5N2/PPP2PPP/RNB1KB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Quiet System 1. e4 c5 2. Nf3 a6 3. d3 e2e4 c7c5 g1f3 a7a6 d2d3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Réti System 1. e4 c5 2. Nf3 a6 3. g3 e2e4 c7c5 g1f3 a7a6 g2g3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/5NP1/PPPP1P1P/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System 1. e4 c5 2. Nf3 a6 3. c3 e2e4 c7c5 g1f3 a7a6 c2c3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line 1. e4 c5 2. Nf3 a6 3. c3 Nf6 e2e4 c7c5 g1f3 a7a6 c2c3 g8f6 rnbqkb1r/1p1ppppp/p4n2/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System, Gambit Line 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6 e2e4 c7c5 g1f3 a7a6 c2c3 d7d5 e4d5 g8f6 rnbqkb1r/1p2pppp/p4n2/2pP4/8/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System, Ljubojevic Line 1. e4 c5 2. Nf3 a6 3. c3 b5 e2e4 c7c5 g1f3 a7a6 c2c3 b7b5 rnbqkbnr/3ppppp/p7/1pp5/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line 1. e4 c5 2. Nf3 a6 3. c3 d6 e2e4 c7c5 g1f3 a7a6 c2c3 d7d6 rnbqkbnr/1p2pppp/p2p4/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +B28 Sicilian Defense: O'Kelly Variation, Wing Gambit 1. e4 c5 2. Nf3 a6 3. b4 e2e4 c7c5 g1f3 a7a6 b2b4 rnbqkbnr/1p1ppppp/p7/2p5/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +B28 Sicilian Defense: O'Kelly Variation, Yerevan System 1. e4 c5 2. Nf3 a6 3. Nc3 e2e4 c7c5 g1f3 a7a6 b1c3 rnbqkbnr/1p1ppppp/p7/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +B29 Sicilian Defense: Nimzowitsch Variation 1. e4 c5 2. Nf3 Nf6 e2e4 c7c5 g1f3 g8f6 rnbqkb1r/pp1ppppp/5n2/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B29 Sicilian Defense: Nimzowitsch Variation, Advance Variation 1. e4 c5 2. Nf3 Nf6 3. e5 e2e4 c7c5 g1f3 g8f6 e4e5 rnbqkb1r/pp1ppppp/5n2/2p1P3/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - +B29 Sicilian Defense: Nimzowitsch Variation, Closed Variation 1. e4 c5 2. Nf3 Nf6 3. Nc3 e2e4 c7c5 g1f3 g8f6 b1c3 rnbqkb1r/pp1ppppp/5n2/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +B29 Sicilian Defense: Nimzowitsch Variation, Exchange Variation 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 Nxc3 e2e4 c7c5 g1f3 g8f6 e4e5 f6d5 b1c3 d5c3 rnbqkb1r/pp1ppppp/8/2p1P3/8/2n2N2/PPPP1PPP/R1BQKB1R w KQkq - +B29 Sicilian Defense: Nimzowitsch Variation, Main Line 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Nxd5 exd5 6. d4 Nc6 e2e4 c7c5 g1f3 g8f6 e4e5 f6d5 b1c3 e7e6 c3d5 e6d5 d2d4 b8c6 r1bqkb1r/pp1p1ppp/2n5/2ppP3/3P4/5N2/PPP2PPP/R1BQKB1R w KQkq - +B30 Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line 1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6 6. Nd2 Bg5 e2e4 c7c5 g1f3 b8c6 b1c3 e7e5 f1c4 f8e7 d2d3 d7d6 f3d2 e7g5 r1bqk1nr/pp3ppp/2np4/2p1p1b1/2B1P3/2NP4/PPPN1PPP/R1BQK2R w KQkq - +B30 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack 1. e4 c5 2. Nf3 Nc6 3. Bb5 e2e4 c7c5 g1f3 b8c6 f1b5 r1bqkbnr/pp1ppppp/2n5/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +B30 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit 1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4 e2e4 c7c5 g1f3 b8c6 f1b5 c6a5 b2b4 r1bqkbnr/pp1ppppp/8/nBp5/1P2P3/5N2/P1PP1PPP/RNBQK2R b KQkq - +B30 Sicilian Defense: Old Sicilian 1. e4 c5 2. Nf3 Nc6 e2e4 c7c5 g1f3 b8c6 r1bqkbnr/pp1ppppp/2n5/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B30 Sicilian Defense: Rossolimo Variation, Brooklyn Retreat Defense 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nb8 e2e4 c7c5 g1f3 b8c6 f1b5 c6b8 rnbqkbnr/pp1ppppp/8/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 r1bqkbnr/pp1ppp1p/2n3p1/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 e5 6. d4 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 c2c3 e7e5 d2d4 r1bqk1nr/pp1p1pbp/2n3p1/1Bp1p3/3PP3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Lutikov Gambit 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. d4 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 c2c3 g8f6 d2d4 r1bqk2r/pp1pppbp/2n2np1/1Bp5/3PP3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Qa4 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 c2c3 g8f6 d1a4 r1bqk2r/pp1pppbp/2n2np1/1Bp5/Q3P3/2P2N2/PP1P1PPP/RNB2RK1 b kq - +B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Gurgenidze Variation 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. b4 e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 f1e1 e7e5 b2b4 r1bqk1nr/pp1p1pbp/2n3p1/1Bp1p3/1P2P3/5N2/P1PP1PPP/RNBQR1K1 b kq - +B32 Sicilian Defense: Accelerated Dragon 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 r1bqkbnr/pp1ppp1p/2n3p1/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Flohr Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 d8c7 r1b1kbnr/ppqppppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Franco-Sicilian Variation 1. e4 c5 2. Nf3 Nc6 3. d4 e6 e2e4 c7c5 g1f3 b8c6 d2d4 e7e6 r1bqkbnr/pp1p1ppp/2n1p3/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Godiva Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 d8b6 r1b1kbnr/pp1ppppp/1qn5/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Kalashnikov Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 e7e5 d4b5 d7d6 r1bqkbnr/pp3ppp/2np4/1N2p3/4P3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Löwenthal Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 e7e5 r1bqkbnr/pp1p1ppp/2n5/4p3/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Nimzo-American Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 d7d5 r1bqkbnr/pp2pppp/2n5/3p4/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 a6 5. c4 e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 a7a6 c2c4 e7e5 r1bqkbnr/1p1p1ppp/p1n5/4p3/2PNP3/8/PP3PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Open 1. e4 c5 2. Nf3 Nc6 3. d4 e2e4 c7c5 g1f3 b8c6 d2d4 r1bqkbnr/pp1ppppp/2n5/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B32 Sicilian Defense: Open 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 r1bqkbnr/pp1ppppp/2n5/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B32 Sicilian Defense: Open 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 r1bqkbnr/pp1ppppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - +B33 Sicilian Defense: Four Knights Variation, Cobra Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bc5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 d4b5 f8c5 r1bqk2r/pp1p1ppp/2n1pn2/1Nb5/4P3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 r1bqkb1r/pp1p1ppp/2n2n2/4p3/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Bird Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 c8e6 r2qkb1r/1p3ppp/p1npbn2/4p1B1/4P3/N1N5/PPP2PPP/R2QKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Exchange Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4c6 r1bqkb1r/pp1p1ppp/2N2n2/4p3/4P3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Retreat Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4f3 r1bqkb1r/pp1p1ppp/2n2n2/4p3/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b3 r1bqkb1r/pp1p1ppp/2n2n2/4p3/4P3/1NN5/PPP2PPP/R1BQKB1R b KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 r1bqkb1r/5ppp/p1np1n2/1p2p1B1/4P3/N1N5/PPP2PPP/R2QKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 g5f6 g7f6 c3d5 f6f5 r1bqkb1r/5p1p/p1np4/1p1Npp2/4P3/N7/PPP2PPP/R2QKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 c3d5 r1bqkb1r/5ppp/p1np1n2/1p1Np1B1/4P3/N7/PPP2PPP/R2QKB1R b KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 Bg7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 g5f6 g7f6 c3d5 f8g7 r1bqk2r/5pbp/p1np1p2/1p1Np3/4P3/N7/PPP2PPP/R2QKB1R w KQkq - +B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Peresypkin's Sacrifice 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bxb5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 g5f6 g7f6 c3d5 f6f5 f1b5 r1bqkb1r/5p1p/p1np4/1B1Npp2/4P3/N7/PPP2PPP/R2QK2R b KQkq - +B33 Sicilian Defense: Open 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 r1bqkb1r/pp1ppppp/2n2n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B34 Sicilian Defense: Accelerated Dragon, Exchange Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 d4c6 r1bqkbnr/pp1ppp1p/2N3p1/8/4P3/8/PPP2PPP/RNBQKB1R b KQkq - +B34 Sicilian Defense: Accelerated Dragon, Modern Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 r1bqkbnr/pp1ppp1p/2n3p1/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B35 Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1c4 r1bqk2r/pp1pppbp/2n2np1/8/2BNP3/2N1B3/PPP2PPP/R2QK2R b KQkq - +B35 Sicilian Defense: Dragon Variation, Modern Bc4 Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 d6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1c4 d7d6 r1bqk2r/pp2ppbp/2np1np1/8/2BNP3/2N1B3/PPP2PPP/R2QK2R w KQkq - +B36 Sicilian Defense: Accelerated Dragon, Maróczy Bind 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 r1bqkbnr/pp1ppp1p/2n3p1/8/2PNP3/8/PP3PPP/RNBQKB1R b KQkq - +B36 Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 g8f6 b1c3 c6d4 d1d4 d7d6 r1bqkb1r/pp2pp1p/3p1np1/8/2PQP3/2N5/PP3PPP/R1B1KB1R w KQkq - +B37 Sicilian Defense: Accelerated Fianchetto, Maróczy Bind 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 r1bqk1nr/pp1pppbp/2n3p1/8/2PNP3/8/PP3PPP/RNBQKB1R w KQkq - +B37 Sicilian Defense: Accelerated Fianchetto, Simagin Variation 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc2 Bg7 6. e4 d6 7. Be2 Nh6 g1f3 c7c5 c2c4 g7g6 d2d4 c5d4 f3d4 b8c6 d4c2 f8g7 e2e4 d7d6 f1e2 g8h6 r1bqk2r/pp2ppbp/2np2pn/8/2P1P3/8/PPN1BPPP/RNBQK2R w KQkq - +B38 Sicilian Defense: Accelerated Dragon, Maróczy Bind 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 c1e3 r1bqk1nr/pp1pppbp/2n3p1/8/2PNP3/4B3/PP3PPP/RN1QKB1R b KQkq - +B39 Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 c1e3 g8f6 b1c3 f6g4 r1bqk2r/pp1pppbp/2n3p1/8/2PNP1n1/2N1B3/PP3PPP/R2QKB1R w KQkq - +B40 Sicilian Defense: Alapin Variation, Sherzer Variation 1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 Nc6 e2e4 c7c5 g1f3 e7e6 c2c3 g8f6 e4e5 f6d5 d2d4 b8c6 r1bqkb1r/pp1p1ppp/2n1p3/2pnP3/3P4/2P2N2/PP3PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: Delayed Alapin Variation 1. e4 c5 2. Nf3 e6 3. c3 e2e4 c7c5 g1f3 e7e6 c2c3 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - +B40 Sicilian Defense: Four Knights Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 r1bqkb1r/pp1p1ppp/2n1pn2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B40 Sicilian Defense: Four Knights Variation, Exchange Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 d4c6 r1bqkb1r/pp1p1ppp/2N1pn2/8/4P3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B40 Sicilian Defense: French Variation 1. e4 c5 2. Nf3 e6 e2e4 c7c5 g1f3 e7e6 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: French Variation, Normal 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 rnbqkb1r/pp1p1ppp/4pn2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: French Variation, Open 1. e4 c5 2. Nf3 e6 3. d4 cxd4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 rnbqkbnr/pp1p1ppp/4p3/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: French Variation, Westerinen Attack 1. e4 c5 2. Nf3 e6 3. b3 e2e4 c7c5 g1f3 e7e6 b2b3 rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq - +B40 Sicilian Defense: Gaw-Paw Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d8b6 rnb1kb1r/pp1p1ppp/1q2pn2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B40 Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 b5 5. d4 cxd4 6. Nxd4 e2e4 c7c5 g1f3 e7e6 b1c3 a7a6 g2g3 b7b5 d2d4 c5d4 f3d4 rnbqkbnr/3p1ppp/p3p3/1p6/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B40 Sicilian Defense: Kramnik Variation 1. e4 c5 2. Nf3 e6 3. c4 e2e4 c7c5 g1f3 e7e6 c2c4 rnbqkbnr/pp1p1ppp/4p3/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +B40 Sicilian Defense: Kveinis Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 d8b6 rnb1kbnr/pp1p1ppp/1q2p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: Marshall Counterattack 1. e4 c5 2. Nf3 e6 3. d4 d5 e2e4 c7c5 g1f3 e7e6 d2d4 d7d5 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: Paulsen-Basman Defense 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 f8c5 rnbqk1nr/pp1p1ppp/4p3/2b5/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B40 Sicilian Defense: Pin Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4 rnbqk2r/pp1p1ppp/4pn2/8/1b1NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B40 Sicilian Defense: Pin Variation, Jaffe Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 e5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4 f1d3 e6e5 rnbqk2r/pp1p1ppp/5n2/4p3/1b1NP3/2NB4/PPP2PPP/R1BQK2R w KQkq - +B40 Sicilian Defense: Pin Variation, Koch Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4 e4e5 rnbqk2r/pp1p1ppp/4pn2/4P3/1b1N4/2N5/PPP2PPP/R1BQKB1R b KQkq - +B40 Sicilian Defense: Smith-Morra Gambit Deferred 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 c2c3 rnbqkbnr/pp1p1ppp/4p3/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B40 Sicilian Defense: Wing Gambit Deferred 1. e4 c5 2. Nf3 e6 3. b4 e2e4 c7c5 g1f3 e7e6 b2b4 rnbqkbnr/pp1p1ppp/4p3/2p5/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +B41 Sicilian Defense: Kan Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B41 Sicilian Defense: Kan Variation, Maróczy Bind, Bronstein Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 g8f6 b1c3 f8b4 f1d3 b8c6 r1bqk2r/1p1p1ppp/p1n1pn2/8/1bPNP3/2NB4/PP3PPP/R1BQK2R w KQkq - +B41 Sicilian Defense: Kan Variation, Maróczy Bind, Bronstein Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Bc2 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 g8f6 b1c3 f8b4 f1d3 b8c6 d3c2 r1bqk2r/1p1p1ppp/p1n1pn2/8/1bPNP3/2N5/PPB2PPP/R1BQK2R b KQkq - +B41 Sicilian Defense: Kan Variation, Maróczy Bind, Hedgehog Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 g6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 g7g6 rnbqkbnr/1p1p1p1p/p3p1p1/8/2PNP3/8/PP3PPP/RNBQKB1R w KQkq - +B41 Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 rnbqkbnr/1p1p1ppp/p3p3/8/2PNP3/8/PP3PPP/RNBQKB1R b KQkq - +B42 Sicilian Defense: Kan Variation, Gipslis Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O d6 7. c4 g6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 g8f6 e1g1 d7d6 c2c4 g7g6 rnbqkb1r/1p3p1p/p2ppnp1/8/2PNP3/3B4/PP3PPP/RNBQ1RK1 w kq - +B42 Sicilian Defense: Kan Variation, Modern Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/3B4/PPP2PPP/RNBQK2R b KQkq - +B42 Sicilian Defense: Kan Variation, Polugaevsky Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 f8c5 rnbqk1nr/1p1p1ppp/p3p3/2b5/3NP3/3B4/PPP2PPP/RNBQK2R w KQkq - +B42 Sicilian Defense: Kan Variation, Swiss Cheese Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 g6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 g7g6 rnbqkbnr/1p1p1p1p/p3p1p1/8/3NP3/3B4/PPP2PPP/RNBQK2R w KQkq - +B43 Sicilian Defense: Kan Variation, Knight Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3 rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B43 Sicilian Defense: Kan Variation, Wing Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3 b7b5 rnbqkbnr/3p1ppp/p3p3/1p6/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B43 Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Qg4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3 b7b5 f1d3 d8b6 c1e3 f8c5 d1g4 rnb1k1nr/3p1ppp/pq2p3/1pb5/3NP1Q1/2NBB3/PPP2PPP/R3K2R b KQkq - +B43 Sicilian Defense: Kan Variation, Wing Attack, Spraggett Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nf3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3 b7b5 f1d3 d8b6 d4f3 rnb1kbnr/3p1ppp/pq2p3/1p6/4P3/2NB1N2/PPP2PPP/R1BQK2R b KQkq - +B44 Sicilian Defense: Taimanov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 r1bqkbnr/pp1p1ppp/2n1p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B44 Sicilian Defense: Taimanov Variation, Gary Gambit 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 d5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5 d7d6 c2c4 g8f6 b1c3 a7a6 b5a3 d6d5 r1bqkb1r/1p3ppp/p1n1pn2/3p4/2P1P3/N1N5/PP3PPP/R1BQKB1R w KQkq - +B44 Sicilian Defense: Taimanov Variation, Modern Line 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 O-O 10. O-O b6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5 d7d6 c2c4 g8f6 b1c3 a7a6 b5a3 f8e7 f1e2 e8g8 e1g1 b7b6 r1bq1rk1/4bppp/ppnppn2/8/2P1P3/N1N5/PP2BPPP/R1BQ1RK1 w - - +B44 Sicilian Defense: Taimanov Variation, Szén Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5 r1bqkbnr/pp1p1ppp/2n1p3/1N6/4P3/8/PPP2PPP/RNBQKB1R b KQkq - +B45 Sicilian Defense: Taimanov Variation, American Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+ e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 g8f6 d4b5 f8b4 b5d6 r1bqk2r/pp1p1ppp/2nNpn2/8/1b2P3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B45 Sicilian Defense: Taimanov Variation, Normal Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 r1bqkbnr/pp1p1ppp/2n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq - +B46 Sicilian Defense: Taimanov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 a7a6 r1bqkbnr/1p1p1ppp/p1n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B47 Sicilian Defense: Taimanov Variation, Bastrikov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 r1b1kbnr/ppqp1ppp/2n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B47 Sicilian Defense: Taimanov Variation, Bastrikov Variation, Ponomariov Gambit 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Ndb5 Qb8 7. Be3 a6 8. Bb6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 d4b5 c7b8 c1e3 a7a6 e3b6 rqb1kbnr/1p1p1ppp/pBn1p3/1N6/4P3/2N5/PPP2PPP/R2QKB1R b KQkq - +B48 Sicilian Defense: Taimanov Variation, Bastrikov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 r1b1kbnr/ppqp1ppp/2n1p3/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq - +B48 Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. f3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 a7a6 f2f3 r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1BP2/PPP3PP/R2QKB1R b KQkq - +B48 Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 a7a6 d1d2 r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1B3/PPPQ1PPP/R3KB1R b KQkq - +B49 Sicilian Defense: Taimanov Variation, Bastrikov Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 a7a6 f1e2 r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1B3/PPP1BPPP/R2QK2R b KQkq - +B50 Sicilian Defense 1. e4 c5 2. Nf3 d6 3. d4 e2e4 c7c5 g1f3 d7d6 d2d4 rnbqkbnr/pp2pppp/3p4/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +B50 Sicilian Defense 1. e4 c5 2. Nf3 d6 3. d4 cxd4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 rnbqkbnr/pp2pppp/3p4/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B50 Sicilian Defense: Delayed Alapin 1. e4 c5 2. Nf3 d6 3. c3 e2e4 c7c5 g1f3 d7d6 c2c3 rnbqkbnr/pp2pppp/3p4/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - +B50 Sicilian Defense: Delayed Alapin, Basman-Palatnik Double Gambit 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 Nxe4 7. d5 Qa5+ 8. Nc3 Nxc3 9. bxc3 e2e4 c7c5 g1f3 d7d6 c2c3 g8f6 f1e2 b8c6 d2d4 c5d4 c3d4 f6e4 d4d5 d8a5 b1c3 e4c3 b2c3 r1b1kb1r/pp2pppp/2np4/q2P4/8/2P2N2/P3BPPP/R1BQK2R b KQkq - +B50 Sicilian Defense: Delayed Alapin, Basman-Palatnik Gambit 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 Nxe4 e2e4 c7c5 g1f3 d7d6 c2c3 g8f6 f1e2 b8c6 d2d4 c5d4 c3d4 f6e4 r1bqkb1r/pp2pppp/2np4/8/3Pn3/5N2/PP2BPPP/RNBQK2R w KQkq - +B50 Sicilian Defense: Kotov Gambit 1. e4 c5 2. Nf3 d6 3. g3 b5 e2e4 c7c5 g1f3 d7d6 g2g3 b7b5 rnbqkbnr/p3pppp/3p4/1pp5/4P3/5NP1/PPPP1P1P/RNBQKB1R w KQkq - +B50 Sicilian Defense: Modern Variations 1. e4 c5 2. Nf3 d6 e2e4 c7c5 g1f3 d7d6 rnbqkbnr/pp2pppp/3p4/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +B50 Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order 1. e4 c5 2. Nf3 d6 3. d4 Nf6 e2e4 c7c5 g1f3 d7d6 d2d4 g8f6 rnbqkb1r/pp2pppp/3p1n2/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B50 Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order Accepted 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. dxc5 Nxe4 e2e4 c7c5 g1f3 d7d6 d2d4 g8f6 d4c5 f6e4 rnbqkb1r/pp2pppp/3p4/2P5/4n3/5N2/PPP2PPP/RNBQKB1R w KQkq - +B50 Sicilian Defense: Modern Variations, Tartakower 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. c3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 c2c3 rnbqkbnr/pp2pppp/3p4/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +B50 Sicilian Defense: Wing Gambit, Deferred Variation 1. e4 c5 2. Nf3 d6 3. b4 e2e4 c7c5 g1f3 d7d6 b2b4 rnbqkbnr/pp2pppp/3p4/2p5/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +B51 Sicilian Defense: Canal Attack, Dorfman Gambit 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Qe2 g6 6. e5 e2e4 c7c5 g1f3 d7d6 f1b5 b8c6 e1g1 c8d7 d1e2 g7g6 e4e5 r2qkbnr/pp1bpp1p/2np2p1/1Bp1P3/8/5N2/PPPPQPPP/RNB2RK1 b kq - +B51 Sicilian Defense: Canal Attack, Moscow Gambit 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Bxc6 Bxc6 8. d4 Bxe4 9. Bg5 e2e4 c7c5 g1f3 d7d6 f1b5 b8c6 e1g1 c8d7 c2c3 g8f6 f1e1 a7a6 b5c6 d7c6 d2d4 c6e4 c1g5 r2qkb1r/1p2pppp/p2p1n2/2p3B1/3Pb3/2P2N2/PP3PPP/RN1QR1K1 b kq - +B51 Sicilian Defense: Moscow Variation 1. e4 c5 2. Nf3 d6 3. Bb5+ e2e4 c7c5 g1f3 d7d6 f1b5 rnbqkbnr/pp2pppp/3p4/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +B52 Sicilian Defense: Canal Attack, Haag Gambit 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. c3 Nf6 7. d4 e2e4 c7c5 g1f3 d7d6 f1b5 c8d7 b5d7 d8d7 e1g1 b8c6 c2c3 g8f6 d2d4 r3kb1r/pp1qpppp/2np1n2/2p5/3PP3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +B52 Sicilian Defense: Canal Attack, Main Line 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 e2e4 c7c5 g1f3 d7d6 f1b5 c8d7 rn1qkbnr/pp1bpppp/3p4/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +B52 Sicilian Defense: Moscow Variation, Sokolsky Variation 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 e2e4 c7c5 g1f3 d7d6 f1b5 c8d7 b5d7 d8d7 c2c4 rn2kbnr/pp1qpppp/3p4/2p5/2P1P3/5N2/PP1P1PPP/RNBQK2R b KQkq - +B53 Sicilian Defense: Chekhover Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 d1d4 rnbqkbnr/pp2pppp/3p4/8/3QP3/5N2/PPP2PPP/RNB1KB1R b KQkq - +B53 Sicilian Defense: Chekhover Variation, Zaitsev Defense 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 d1d4 b8c6 f1b5 d8d7 r1b1kbnr/pp1qpppp/2np4/1B6/3QP3/5N2/PPP2PPP/RNB1K2R w KQkq - +B54 Sicilian Defense: Accelerated Dragon 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g7g6 rnbqkbnr/pp2pp1p/3p2p1/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B54 Sicilian Defense: Modern Variations, Ginsberg Gambit 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bc4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 f1c4 rnbqkb1r/pp2pppp/3p1n2/8/2BNP3/8/PPP2PPP/RNBQK2R b KQkq - +B54 Sicilian Defense: Modern Variations, Main Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 rnbqkb1r/pp2pppp/3p1n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +B54 Sicilian Defense: Prins Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 f2f3 rnbqkb1r/pp2pppp/3p1n2/8/3NP3/5P2/PPP3PP/RNBQKB1R b KQkq - +B55 Sicilian Defense: Prins Variation, Venice Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+ e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 f2f3 e7e5 f1b5 rnbqkb1r/pp3ppp/3p1n2/1B2p3/3NP3/5P2/PPP3PP/RNBQK2R b KQkq - +B56 Sicilian Defense: Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B56 Sicilian Defense: Classical Variation, Fianchetto Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 g2g3 r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B56 Sicilian Defense: Kupreichik Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 c8d7 rn1qkb1r/pp1bpppp/3p1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B56 Sicilian Defense: Spielmann Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Nde2 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 d4e2 r1bqkb1r/pp2pppp/2np1n2/8/4P3/2N5/PPP1NPPP/R1BQKB1R b KQkq - +B56 Sicilian Defense: Venice Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Bb5+ e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 f1b5 rnbqkb1r/pp3ppp/3p1n2/1B2p3/3NP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B56 Sicilian Defense: Yates Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bd3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1d3 r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2NB4/PPP2PPP/R1BQK2R b KQkq - +B57 Sicilian Defense: Classical Variation, Anti-Sozin Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 d8b6 r1b1kb1r/pp2pppp/1qnp1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R w KQkq - +B57 Sicilian Defense: Magnus Smith Trap 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 g6 7. Nxc6 bxc6 8. e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 g7g6 d4c6 b7c6 e4e5 r1bqkb1r/p3pp1p/2pp1np1/4P3/2B5/2N5/PPP2PPP/R1BQK2R b KQkq - +B57 Sicilian Defense: Sozin, not Scheveningen 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 r1bqkb1r/pp2pppp/2np1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B58 Sicilian Defense: Boleslavsky Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1e2 e7e5 r1bqkb1r/pp3ppp/2np1n2/4p3/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq - +B58 Sicilian Defense: Boleslavsky Variation, Louma Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nxc6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 e7e5 d4c6 r1bqkb1r/pp3ppp/2Np1n2/4p3/4P3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B58 Sicilian Defense: Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1e2 r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B58 Sicilian Defense: Classical Variation, Dragon Transfer 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 Nxd4 7. Qxd4 g6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1e2 c6d4 d1d4 g7g6 r1bqkb1r/pp2pp1p/3p1np1/8/3QP3/2N5/PPP1BPPP/R1B1K2R w KQkq - +B59 Sicilian Defense: Boleslavsky Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 e7e5 d4b3 r1bqkb1r/pp3ppp/2np1n2/4p3/4P3/1NN5/PPP1BPPP/R1BQK2R b KQkq - +B60 Sicilian Defense: Richter-Rauzer Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 r1bqkb1r/pp2pppp/2np1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R b KQkq - +B60 Sicilian Defense: Richter-Rauzer Variation, Dragon Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 g6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 g7g6 r1bqkb1r/pp2pp1p/2np1np1/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq - +B60 Sicilian Defense: Richter-Rauzer Variation, Modern Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 c8d7 r2qkb1r/pp1bpppp/2np1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq - +B61 Sicilian Defense: Richter-Rauzer Variation, Modern Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Bd7 7. Qd2 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 c8d7 d1d2 r2qkb1r/pp1bpppp/2np1n2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R b KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d3 r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2NQ4/PPP2PPP/R3KB1R b KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation, Exchange Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Nxc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d4c6 r1bqkb1r/pp3ppp/2Nppn2/6B1/4P3/2N5/PPP2PPP/R2QKB1R b KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation, Podebrady Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Nb3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d4b3 r1bqkb1r/pp3ppp/2nppn2/6B1/4P3/1NN5/PPP2PPP/R2QKB1R b KQkq - +B62 Sicilian Defense: Richter-Rauzer Variation, Vitolins Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 f1b5 r1bqkb1r/pp3ppp/2nppn2/1B4B1/3NP3/2N5/PPP2PPP/R2QK2R b KQkq - +B63 Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 r1bqk2r/pp2bppp/2nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq - +B63 Sicilian Defense: Richter-Rauzer Variation, Classical Variation, Kantscher Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O Nxd4 9. Qxd4 a6 10. f4 b5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 c6d4 d2d4 a7a6 f2f4 b7b5 r1bqk2r/4bppp/p2ppn2/1p4B1/3QPP2/2N5/PPP3PP/2KR1B1R w kq - +B63 Sicilian Defense: Richter-Rauzer Variation, Ivanov Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Qb6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 d8b6 r1b1kb1r/pp3ppp/1qnppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq - +B63 Sicilian Defense: Richter-Rauzer Variation, Traditional Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R b KQkq - +B64 Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 e6e5 r1bq1rk1/pp2bppp/2np1n2/4p1B1/3NPP2/2N5/PPPQ2PP/2KR1B1R w - - +B64 Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 r1bq1rk1/pp2bppp/2nppn2/6B1/3NPP2/2N5/PPPQ2PP/2KR1B1R b - - +B65 Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 10. Qxd4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 c6d4 d2d4 r1bq1rk1/pp2bppp/3ppn2/6B1/3QPP2/2N5/PPP3PP/2KR1B1R b - - +B65 Sicilian Defense: Richter-Rauzer Variation, Rauzer Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 c6d4 r1bq1rk1/pp2bppp/3ppn2/6B1/3nPP2/2N5/PPPQ2PP/2KR1B1R w - - +B66 Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 a7a6 r1bqkb1r/1p3ppp/p1nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq - +B67 Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7 r2qkb1r/1p1b1ppp/p1nppn2/6B1/3NP3/2N5/PPPQ1PPP/2KR1B1R w kq - +B68 Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7 f2f4 f8e7 r2qk2r/1p1bbppp/p1nppn2/6B1/3NPP2/2N5/PPPQ2PP/2KR1B1R w kq - +B69 Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7 f2f4 f8e7 d4f3 b7b5 g5f6 r2qk2r/3bbppp/p1nppB2/1p6/4PP2/2N2N2/PPPQ2PP/2KR1B1R b kq - +B70 Sicilian Defense: Dragon Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B70 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B70 Sicilian Defense: Dragon Variation, Fianchetto Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 g2g3 rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B71 Sicilian Defense: Dragon Variation, Levenfish Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f2f4 rnbqkb1r/pp2pp1p/3p1np1/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq - +B71 Sicilian Defense: Dragon Variation, Levenfish Variation, Main Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f2f4 b8d7 r1bqkb1r/pp1npp1p/3p1np1/8/3NPP2/2N5/PPP3PP/R1BQKB1R w KQkq - +B72 Sicilian Defense: Dragon Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 rnbqk2r/pp2ppbp/3p1np1/8/3NP3/2N1B3/PPP1BPPP/R2QK2R b KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPP1BPPP/R2QK2R w KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Nb3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 d4b3 r1bqk2r/pp2ppbp/2np1np1/8/4P3/1NN1B3/PPP1BPPP/R2QK2R b KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation, Amsterdam Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Qd2 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 g7g6 c1e3 f8g7 d1d2 r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/R3K2R b KQkq - +B72 Sicilian Defense: Dragon Variation, Classical Variation, Grigoriev Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Qd2 O-O 9. O-O-O e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 g7g6 c1e3 f8g7 d1d2 e8g8 e1c1 r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/2KR3R b - - +B73 Sicilian Defense: Dragon Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 b8c6 c1e3 r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPP1BPPP/R2Q1RK1 b kq - +B73 Sicilian Defense: Dragon Variation, Classical Variation, Battery Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Qd2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d1d2 r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/R4RK1 b - - +B73 Sicilian Defense: Dragon Variation, Classical Variation, Zollner Gambit 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Be2 Nf6 7. Nc3 O-O 8. O-O d6 9. f4 Qb6 10. e5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c1e3 f8g7 f1e2 g8f6 b1c3 e8g8 e1g1 d7d6 f2f4 d8b6 e4e5 r1b2rk1/pp2ppbp/1qnp1np1/4P3/3N1P2/2N1B3/PPP1B1PP/R2Q1RK1 b - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Alekhine Line 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d6 9. Nb3 a5 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1e2 e8g8 e1g1 d7d6 d4b3 a7a5 r1bq1rk1/1p2ppbp/2np1np1/p7/4P3/1NN1B3/PPP1BPPP/R2Q1RK1 w - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Bernard Defense 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Bd3 Bxd3 13. cxd3 d5 e2e4 c7c5 g1f3 g7g6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d4b3 c8e6 f2f4 c6a5 f4f5 e6c4 e2d3 c4d3 c2d3 d6d5 r2q1rk1/pp2ppbp/5np1/n2p1P2/4P3/1NNPB3/PP4PP/R2Q1RK1 w - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Maróczy Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 Be6 10. f4 Na5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d4b3 c8e6 f2f4 c6a5 r2q1rk1/pp2ppbp/3pbnp1/n7/4PP2/1NN1B3/PPP1B1PP/R2Q1RK1 w - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Normal Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d4b3 r1bq1rk1/pp2ppbp/2np1np1/8/4P3/1NN1B3/PPP1BPPP/R2Q1RK1 b - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Spielmann Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. Nb3 d6 9. O-O Be6 10. f4 Na5 11. f5 Bc4 12. Bd3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1e2 e8g8 d4b3 d7d6 e1g1 c8e6 f2f4 c6a5 f4f5 e6c4 e2d3 r2q1rk1/pp2ppbp/3p1np1/n4P2/2b1P3/1NNBB3/PPP3PP/R2Q1RK1 b - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Stockholm Attack 1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Be3 Nf6 8. Be2 O-O 9. Nb3 Be6 10. O-O Na5 11. f5 Bc4 12. Nxa5 Bxe2 13. Qxe2 Qxa5 14. g4 e2e4 c7c5 b1c3 d7d6 f2f4 b8c6 g1f3 g7g6 d2d4 c5d4 f3d4 f8g7 c1e3 g8f6 f1e2 e8g8 d4b3 c8e6 e1g1 c6a5 f4f5 e6c4 b3a5 c4e2 d1e2 d8a5 g2g4 r4rk1/pp2ppbp/3p1np1/q4P2/4P1P1/2N1B3/PPP1Q2P/R4RK1 b - - +B74 Sicilian Defense: Dragon Variation, Classical Variation, Tartakower Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 Be6 10. f4 Qc8 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f1e2 f8g7 e1g1 e8g8 c1e3 b8c6 d4b3 c8e6 f2f4 d8c8 r1q2rk1/pp2ppbp/2npbnp1/8/4PP2/1NN1B3/PPP1B1PP/R2Q1RK1 w - - +B75 Sicilian Defense: Dragon Variation, Yugoslav Attack, Belezky Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 b8c6 r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1BP2/PPP3PP/R2QKB1R w KQkq - +B75 Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 rnbqk2r/pp2ppbp/3p1np1/8/3NP3/2N1BP2/PPP3PP/R2QKB1R b KQkq - +B76 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 rnbq1rk1/pp2ppbp/3p1np1/8/3NP3/2N1BP2/PPP3PP/R2QKB1R w KQ - +B76 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1BP2/PPPQ2PP/R3KB1R w KQ - +B76 Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. O-O-O e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 b8c6 d1d2 e8g8 e1c1 r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1BP2/PPPQ2PP/2KR1B1R b - - +B76 Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. g4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 g2g4 r1bq1rk1/pp2ppbp/2np1np1/8/3NP1P1/2N1BP2/PPPQ3P/R3KB1R b KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 r2q1rk1/pp1bppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack, Byrne Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 a5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 a7a5 r1bq1rk1/1p2ppbp/2np1np1/p7/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack, Czerniak Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Nxd4 10. Bxd4 Be6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 b8c6 d1d2 e8g8 f1c4 c6d4 e3d4 c8e6 r2q1rk1/pp2ppbp/3pbnp1/8/2BBP3/2N2P2/PPPQ2PP/R3K2R w KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 r1bq1rk1/pp2ppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R b KQ - +B77 Sicilian Defense: Dragon Variation, Yugoslav Attack, Sosonko Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Nd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 b8c6 d1d2 e8g8 f1c4 f6d7 r1bq1rk1/pp1nppbp/2np2p1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ - +B78 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 e1c1 r2q1rk1/pp1bppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/2KR3R b - - +B78 Sicilian Defense: Dragon Variation, Yugoslav Attack, Old Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Rc8 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 e1c1 a8c8 2rq1rk1/pp1bppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/2KR3R w - - +B79 Sicilian Defense: Dragon Variation, Yugoslav Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. h4 Qa5 11. O-O-O Rfc8 12. Bb3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 h2h4 d8a5 e1c1 f8c8 c4b3 r1r3k1/pp1bppbp/2np1np1/q7/3NP2P/1BN1BP2/PPPQ2P1/2KR3R b - - +B79 Sicilian Defense: Dragon Variation, Yugoslav Attack, Soltis Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Qa5 11. h4 Rfc8 12. Bb3 h5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 e1c1 d8a5 h2h4 f8c8 c4b3 h7h5 r1r3k1/pp1bppb1/2np1np1/q6p/3NP2P/1BN1BP2/PPPQ2P1/2KR3R w - - +B80 Sicilian Defense: Scheveningen Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B80 Sicilian Defense: Scheveningen Variation, English Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Qd2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 e7e6 d1d2 rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N1B3/PPPQ1PPP/R3KB1R b KQkq - +B80 Sicilian Defense: Scheveningen Variation, Fianchetto Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 g2g3 rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B80 Sicilian Defense: Scheveningen Variation, Vitolins Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5+ e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1b5 rnbqkb1r/pp3ppp/3ppn2/1B6/3NP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B81 Sicilian Defense: Scheveningen Variation, Keres Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 g2g4 rnbqkb1r/pp3ppp/3ppn2/8/3NP1P1/2N5/PPP2P1P/R1BQKB1R b KQkq - +B82 Sicilian Defense: Scheveningen Variation, Matanovic Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f2f4 rnbqkb1r/pp3ppp/3ppn2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq - +B82 Sicilian Defense: Scheveningen Variation, Tal Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 Nc6 7. Be3 Be7 8. Qf3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f2f4 b8c6 c1e3 f8e7 d1f3 r1bqk2r/pp2bppp/2nppn2/8/3NPP2/2N1BQ2/PPP3PP/R3KB1R b KQkq - +B83 Sicilian Defense: Scheveningen Variation, Classical Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B83 Sicilian Defense: Scheveningen Variation, Modern Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d7d6 f1e2 g8f6 r1bqkb1r/pp3ppp/2nppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq - +B83 Sicilian Defense: Scheveningen Variation, Modern Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O O-O 8. f4 Nc6 9. Be3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 f8e7 e1g1 e8g8 f2f4 b8c6 c1e3 r1bq1rk1/pp2bppp/2nppn2/8/3NPP2/2N1B3/PPP1B1PP/R2Q1RK1 b - - +B83 Sicilian Defense: Scheveningen Variation, Modern Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O O-O 8. f4 Nc6 9. Be3 Bd7 10. Nb3 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 f8e7 e1g1 e8g8 f2f4 b8c6 c1e3 c8d7 d4b3 r2q1rk1/pp1bbppp/2nppn2/8/4PP2/1NN1B3/PPP1B1PP/R2Q1RK1 b - - +B84 Sicilian Defense: Najdorf Variation, Scheveningen Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Nbd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e6 e1g1 b8d7 r1bqkb1r/1p1n1ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQ1RK1 w kq - +B84 Sicilian Defense: Scheveningen Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e6 rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq - +B84 Sicilian Defense: Scheveningen Variation, Classical Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Qc7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e6 e1g1 d8c7 rnb1kb1r/1pq2ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQ1RK1 w kq - +B85 Sicilian Defense: Scheveningen Variation, Classical Main Line 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Be7 9. f4 d6 10. Qe1 O-O e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 f1e2 a7a6 e1g1 g8f6 c1e3 f8e7 f2f4 d7d6 d1e1 e8g8 r1b2rk1/1pq1bppp/p1nppn2/8/3NPP2/2N1B3/PPP1B1PP/R3QRK1 w - - +B85 Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Be2 Qc7 8. O-O Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f2f4 e7e6 f1e2 d8c7 e1g1 b8c6 r1b1kb1r/1pq2ppp/p1nppn2/8/3NPP2/2N5/PPP1B1PP/R1BQ1RK1 w kq - +B85 Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 d6 9. f4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 f1e2 a7a6 e1g1 g8f6 c1e3 d7d6 f2f4 r1b1kb1r/1pq2ppp/p1nppn2/8/3NPP2/2N1B3/PPP1B1PP/R2Q1RK1 b kq - +B85 Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Kh1 Be7 9. f4 d6 10. a4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 f1e2 a7a6 e1g1 g8f6 g1h1 f8e7 f2f4 d7d6 a2a4 r1b1k2r/1pq1bppp/p1nppn2/8/P2NPP2/2N5/1PP1B1PP/R1BQ1R1K b kq - +B86 Sicilian Defense: Sozin Attack 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 rnbqkb1r/pp3ppp/3ppn2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B87 Sicilian Defense: Sozin Attack, Flank Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1c4 e7e6 c4b3 b7b5 rnbqkb1r/5ppp/p2ppn2/1p6/3NP3/1BN5/PPP2PPP/R1BQK2R w KQkq - +B88 Sicilian Defense: Sozin Attack, Fischer Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7 8. Be3 O-O 9. f4 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 e7e6 c4b3 f8e7 c1e3 e8g8 f2f4 r1bq1rk1/pp2bppp/2nppn2/8/3NPP2/1BN1B3/PPP3PP/R2QK2R b KQ - +B88 Sicilian Defense: Sozin Attack, Leonhardt Variation 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 e7e6 r1bqkb1r/pp3ppp/2nppn2/8/2BNP3/2N5/PPP2PPP/R1BQK2R w KQkq - +B89 Sicilian Defense: Sozin Attack, Main Line 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 e7e6 c1e3 r1bqkb1r/pp3ppp/2nppn2/8/2BNP3/2N1B3/PPP2PPP/R2QK2R b KQkq - +B89 Sicilian Defense: Sozin Attack, Main Line, Sherbakov Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 Be7 8. Bb3 O-O 9. O-O Na5 10. f4 b6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1c4 e7e6 c1e3 f8e7 c4b3 e8g8 e1g1 c6a5 f2f4 b7b6 r1bq1rk1/p3bppp/1p1ppn2/n7/3NPP2/1BN1B3/PPP3PP/R2Q1RK1 w - - +B89 Sicilian Defense: Velimirovic Attack 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8. Qe2 e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1c4 e7e6 c1e3 f8e7 d1e2 r1bqk2r/pp2bppp/2nppn2/8/2BNP3/2N1B3/PPP1QPPP/R3K2R b KQkq - +B90 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +B90 Sicilian Defense: Najdorf Variation, Adams Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 h2h3 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N4P/PPP2PP1/R1BQKB1R b KQkq - +B90 Sicilian Defense: Najdorf Variation, Dekker Gambit 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 g2g4 rnbqkb1r/1p2pppp/p2p1n2/8/3NP1P1/2N5/PPP2P1P/R1BQKB1R b KQkq - +B90 Sicilian Defense: Najdorf Variation, English Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq - +B90 Sicilian Defense: Najdorf Variation, English Attack, Anti-English 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 f6g4 rnbqkb1r/1p2pppp/p2p4/8/3NP1n1/2N1B3/PPP2PPP/R2QKB1R w KQkq - +B90 Sicilian Defense: Najdorf Variation, Freak Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Rg1 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 h1g1 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP2PPP/R1BQKBR1 b Qkq - +B90 Sicilian Defense: Najdorf Variation, Lipnitsky Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1c4 rnbqkb1r/1p2pppp/p2p1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - +B90 Sicilian Defense: Scheveningen Variation, Delayed Keres Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 e7e6 g2g4 rnbqkb1r/1p3ppp/p2ppn2/8/3NP1P1/2N1B3/PPP2P1P/R2QKB1R b KQkq - +B90 Sicilian Defense: Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e5 8. Nf5 g6 9. g5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 e7e6 g2g4 e6e5 d4f5 g7g6 g4g5 rnbqkb1r/1p3p1p/p2p1np1/4pNP1/4P3/2N1B3/PPP2P1P/R2QKB1R b KQkq - +B90 Sicilian Defense: Scheveningen Variation, English Attack 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3 e7e6 f2f3 rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N1BP2/PPP3PP/R2QKB1R b KQkq - +B91 Sicilian Defense: Najdorf Variation, Zagreb Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 g2g3 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq - +B92 Sicilian Defense: Najdorf Variation, Opocensky Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - +B92 Sicilian Defense: Najdorf Variation, Opocensky Variation, Modern Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O Be6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e5 d4b3 f8e7 e1g1 c8e6 rn1qk2r/1p2bppp/p2pbn2/4p3/4P3/1NN5/PPP1BPPP/R1BQ1RK1 w kq - +B92 Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2 e7e5 d4b3 f8e7 e1g1 e8g8 rnbq1rk1/1p2bppp/p2p1n2/4p3/4P3/1NN5/PPP1BPPP/R1BQ1RK1 w - - +B93 Sicilian Defense: Najdorf Variation, Amsterdam Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f2f4 rnbqkb1r/1p2pppp/p2p1n2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq - +B94 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 rnbqkb1r/1p2pppp/p2p1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R b KQkq - +B94 Sicilian Defense: Najdorf Variation, Ivkov Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qa5 8. Qd2 e6 9. O-O-O b5 10. Bb3 Bb7 11. Rhe1 Nc5 12. e5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 b8d7 f1c4 d8a5 d1d2 e7e6 e1c1 b7b5 c4b3 c8b7 h1e1 d7c5 e4e5 r3kb1r/1b3ppp/p2ppn2/qpn1P1B1/3N4/1BN5/PPPQ1PPP/2KRR3 b kq - +B95 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 rnbqkb1r/1p3ppp/p2ppn2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq - +B96 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 rnbqkb1r/1p3ppp/p2ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R b KQkq - +B96 Sicilian Defense: Najdorf Variation, Neo-Classical Defense 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nc6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 b8c6 r1bqkb1r/1p3ppp/p1nppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - +B96 Sicilian Defense: Najdorf Variation, Polugaevsky Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 b7b5 rnbqkb1r/5ppp/p2ppn2/1p4B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - +B96 Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5 dxe5 9. fxe5 Qc7 10. Qe2 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 b7b5 e4e5 d6e5 f4e5 d8c7 d1e2 rnb1kb1r/2q2ppp/p3pn2/1p2P1B1/3N4/2N5/PPP1Q1PP/R3KB1R b KQkq - +B97 Sicilian Defense: Najdorf Variation, Poisoned Pawn Accepted 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 d8b6 d1d2 b6b2 a1b1 b2a3 rnb1kb1r/1p3ppp/p2ppn2/6B1/3NPP2/q1N5/P1PQ2PP/1R2KB1R w Kkq - +B97 Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 d8b6 rnb1kb1r/1p3ppp/pq1ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - +B98 Sicilian Defense: Najdorf Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 rnbqk2r/1p2bppp/p2ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - +B98 Sicilian Defense: Najdorf Variation, Browne Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 Qc7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 h7h6 g5h4 d8c7 rnb1k2r/1pq1bpp1/p2ppn1p/8/3NPP1B/2N2Q2/PPP3PP/R3KB1R w KQkq - +B98 Sicilian Defense: Najdorf Variation, Goteborg Variation 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 g5 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 h7h6 g5h4 g7g5 rnbqk2r/1p2bp2/p2ppn1p/6p1/3NPP1B/2N2Q2/PPP3PP/R3KB1R w KQkq - +B98 Sicilian Defense: Najdorf Variation, Traditional Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 d8c7 rnb1k2r/1pq1bppp/p2ppn2/6B1/3NPP2/2N2Q2/PPP3PP/R3KB1R w KQkq - +B99 Sicilian Defense: Najdorf Variation, Main Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 d8c7 e1c1 b8d7 r1b1k2r/1pqnbppp/p2ppn2/6B1/3NPP2/2N2Q2/PPP3PP/2KR1B1R w kq - +C00 French Defense 1. e4 e6 e2e4 e7e6 rnbqkbnr/pppp1ppp/4p3/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +C00 French Defense 1. e4 e6 2. d4 d5 e2e4 e7e6 d2d4 d7d5 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Alapin Gambit 1. e4 e6 2. d4 d5 3. Be3 e2e4 e7e6 d2d4 d7d5 c1e3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq - +C00 French Defense: Baeuerle Gambit 1. e4 e6 2. d4 b5 e2e4 e7e6 d2d4 b7b5 rnbqkbnr/p1pp1ppp/4p3/1p6/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Banzai-Leong Gambit 1. e4 e6 2. b4 e2e4 e7e6 b2b4 rnbqkbnr/pppp1ppp/4p3/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - +C00 French Defense: Banzai-Leong Gambit, Pinova Gambit 1. e4 e6 2. b4 Bxb4 3. e5 e2e4 e7e6 b2b4 f8b4 e4e5 rnbqk1nr/pppp1ppp/4p3/4P3/1b6/8/P1PP1PPP/RNBQKBNR b KQkq - +C00 French Defense: Bird Invitation 1. e4 e6 2. Bb5 e2e4 e7e6 f1b5 rnbqkbnr/pppp1ppp/4p3/1B6/4P3/8/PPPP1PPP/RNBQK1NR b KQkq - +C00 French Defense: Carlson Gambit 1. e4 e6 2. d4 d5 3. Nf3 dxe4 4. Ne5 e2e4 e7e6 d2d4 d7d5 g1f3 d5e4 f3e5 rnbqkbnr/ppp2ppp/4p3/4N3/3Pp3/8/PPP2PPP/RNBQKB1R b KQkq - +C00 French Defense: Chigorin Variation 1. e4 e6 2. Qe2 e2e4 e7e6 d1e2 rnbqkbnr/pppp1ppp/4p3/8/4P3/8/PPPPQPPP/RNB1KBNR b KQkq - +C00 French Defense: Franco-Hiva Gambit 1. e4 e6 2. d3 f5 e2e4 e7e6 d2d3 f7f5 rnbqkbnr/pppp2pp/4p3/5p2/4P3/3P4/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Franco-Hiva Gambit 1. e4 e6 2. Nf3 f5 e2e4 e7e6 g1f3 f7f5 rnbqkbnr/pppp2pp/4p3/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C00 French Defense: Franco-Hiva Gambit Accepted 1. e4 e6 2. d4 f5 3. exf5 Nf6 e2e4 e7e6 d2d4 f7f5 e4f5 g8f6 rnbqkb1r/pppp2pp/4pn2/5P2/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Hoffmann Gambit 1. e4 e6 2. d4 d5 3. Qe2 e5 4. f4 exf4 e2e4 e7e6 d2d4 d7d5 d1e2 e6e5 f2f4 e5f4 rnbqkbnr/ppp2ppp/8/3p4/3PPp2/8/PPP1Q1PP/RNB1KBNR w KQkq - +C00 French Defense: Horwitz Attack 1. e4 e6 2. b3 e2e4 e7e6 b2b3 rnbqkbnr/pppp1ppp/4p3/8/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +C00 French Defense: Horwitz Attack, Papa-Ticulat Gambit 1. e4 e6 2. b3 d5 3. Bb2 e2e4 e7e6 b2b3 d7d5 c1b2 rnbqkbnr/ppp2ppp/4p3/3p4/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq - +C00 French Defense: King's Indian Attack 1. e4 e6 2. d3 e2e4 e7e6 d2d3 rnbqkbnr/pppp1ppp/4p3/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - +C00 French Defense: Knight Variation 1. e4 e6 2. Nf3 e2e4 e7e6 g1f3 rnbqkbnr/pppp1ppp/4p3/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +C00 French Defense: La Bourdonnais Variation 1. e4 e6 2. f4 e2e4 e7e6 f2f4 rnbqkbnr/pppp1ppp/4p3/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +C00 French Defense: La Bourdonnais Variation, Reuter Gambit 1. e4 e6 2. f4 d5 3. Nf3 dxe4 e2e4 e7e6 f2f4 d7d5 g1f3 d5e4 rnbqkbnr/ppp2ppp/4p3/8/4pP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C00 French Defense: Mediterranean Defense 1. e4 e6 2. d4 Nf6 e2e4 e7e6 d2d4 g8f6 rnbqkb1r/pppp1ppp/4pn2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 French Defense: Morphy Gambit 1. e4 e6 2. d4 d5 3. Nh3 e2e4 e7e6 d2d4 d7d5 g1h3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/7N/PPP2PPP/RNBQKB1R b KQkq - +C00 French Defense: Normal Variation 1. e4 e6 2. d4 e2e4 e7e6 d2d4 rnbqkbnr/pppp1ppp/4p3/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +C00 French Defense: Orthoschnapp Gambit 1. e4 e6 2. c4 d5 3. cxd5 exd5 4. Qb3 e2e4 e7e6 c2c4 d7d5 c4d5 e6d5 d1b3 rnbqkbnr/ppp2ppp/8/3p4/4P3/1Q6/PP1P1PPP/RNB1KBNR b KQkq - +C00 French Defense: Pelikan Variation 1. e4 e6 2. Nc3 d5 3. f4 e2e4 e7e6 b1c3 d7d5 f2f4 rnbqkbnr/ppp2ppp/4p3/3p4/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C00 French Defense: Perseus Gambit 1. e4 e6 2. d4 d5 3. Nf3 e2e4 e7e6 d2d4 d7d5 g1f3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C00 French Defense: Queen's Knight 1. e4 e6 2. Nc3 e2e4 e7e6 b1c3 rnbqkbnr/pppp1ppp/4p3/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - +C00 French Defense: Reversed Philidor Formation 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 Nc6 5. Be2 e2e4 e7e6 d2d3 d7d5 b1d2 g8f6 g1f3 b8c6 f1e2 r1bqkb1r/ppp2ppp/2n1pn2/3p4/4P3/3P1N2/PPPNBPPP/R1BQK2R b KQkq - +C00 French Defense: Réti-Spielmann Attack 1. e4 e6 2. g3 e2e4 e7e6 g2g3 rnbqkbnr/pppp1ppp/4p3/8/4P3/6P1/PPPP1P1P/RNBQKBNR b KQkq - +C00 French Defense: Schlechter Variation 1. e4 e6 2. d4 d5 3. Bd3 e2e4 e7e6 d2d4 d7d5 f1d3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/3B4/PPP2PPP/RNBQK1NR b KQkq - +C00 French Defense: Steiner Variation 1. e4 e6 2. c4 e2e4 e7e6 c2c4 rnbqkbnr/pppp1ppp/4p3/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +C00 French Defense: Steinitz Attack 1. e4 e6 2. e5 e2e4 e7e6 e4e5 rnbqkbnr/pppp1ppp/4p3/4P3/8/8/PPPP1PPP/RNBQKBNR b KQkq - +C00 French Defense: Two Knights Variation 1. e4 e6 2. Nf3 d5 3. Nc3 e2e4 e7e6 g1f3 d7d5 b1c3 rnbqkbnr/ppp2ppp/4p3/3p4/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C00 French Defense: Wing Gambit 1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4 e2e4 e7e6 g1f3 d7d5 e4e5 c7c5 b2b4 rnbqkbnr/pp3ppp/4p3/2ppP3/1P6/5N2/P1PP1PPP/RNBQKB1R b KQkq - +C00 Queen's Pawn Game: Franco-Sicilian Defense 1. e4 e6 2. d4 c5 e2e4 e7e6 d2d4 c7c5 rnbqkbnr/pp1p1ppp/4p3/2p5/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 Rat Defense: Small Center Defense 1. d4 e6 2. e4 d6 d2d4 e7e6 e2e4 d7d6 rnbqkbnr/ppp2ppp/3pp3/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 Sicilian Defense: Drazic Variation 1. e4 e6 2. d4 c5 3. Nf3 a6 e2e4 e7e6 d2d4 c7c5 g1f3 a7a6 rnbqkbnr/1p1p1ppp/p3p3/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C00 St. George Defense 1. e4 e6 2. d4 a6 e2e4 e7e6 d2d4 a7a6 rnbqkbnr/1ppp1ppp/p3p3/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C00 St. George Defense: New St. George, Sanky-George Gambit 1. e4 e6 2. d4 a6 3. c4 b5 e2e4 e7e6 d2d4 a7a6 c2c4 b7b5 rnbqkbnr/2pp1ppp/p3p3/1p6/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - +C00 St. George Defense: New St. George, Three Pawn Attack 1. e4 e6 2. d4 a6 3. c4 e2e4 e7e6 d2d4 a7a6 c2c4 rnbqkbnr/1ppp1ppp/p3p3/8/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - +C00 St. George Defense: New St. George, Traditional Line 1. e4 e6 2. d4 a6 3. Nf3 b5 4. Bd3 c5 5. c3 Bb7 6. O-O Nf6 e2e4 e7e6 d2d4 a7a6 g1f3 b7b5 f1d3 c7c5 c2c3 c8b7 e1g1 g8f6 rn1qkb1r/1b1p1ppp/p3pn2/1pp5/3PP3/2PB1N2/PP3PPP/RNBQ1RK1 w kq - +C00 St. George Defense: St. George Gambit 1. e4 e6 2. d4 a6 3. c4 b5 4. cxb5 axb5 e2e4 e7e6 d2d4 a7a6 c2c4 b7b5 c4b5 a6b5 rnbqkbnr/2pp1ppp/4p3/1p6/3PP3/8/PP3PPP/RNBQKBNR w KQkq - +C01 French Defense: Exchange Variation 1. e4 e6 2. d4 d5 3. exd5 e2e4 e7e6 d2d4 d7d5 e4d5 rnbqkbnr/ppp2ppp/4p3/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +C01 French Defense: Exchange Variation, Bogoljubov Variation 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5 Nc6 e2e4 e7e6 d2d4 d7d5 e4d5 e6d5 b1c3 g8f6 c1g5 b8c6 r1bqkb1r/ppp2ppp/2n2n2/3p2B1/3P4/2N5/PPP2PPP/R2QKBNR w KQkq - +C01 French Defense: Exchange Variation, Monte Carlo Variation 1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4 e2e4 e7e6 d2d4 d7d5 e4d5 e6d5 c2c4 rnbqkbnr/ppp2ppp/8/3p4/2PP4/8/PP3PPP/RNBQKBNR b KQkq - +C01 French Defense: Exchange Variation, Svenonius Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. exd5 exd5 5. Bg5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4d5 e6d5 c1g5 rnbqkb1r/ppp2ppp/5n2/3p2B1/3P4/2N5/PPP2PPP/R2QKBNR b KQkq - +C02 French Defense: Advance Variation 1. e4 e6 2. d4 d5 3. e5 e2e4 e7e6 d2d4 d7d5 e4e5 rnbqkbnr/ppp2ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - +C02 French Defense: Advance Variation 1. e4 e6 2. d4 d5 3. e5 c5 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 rnbqkbnr/pp3ppp/4p3/2ppP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +C02 French Defense: Advance Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 rnbqkbnr/pp3ppp/4p3/2ppP3/3P4/2P5/PP3PPP/RNBQKBNR b KQkq - +C02 French Defense: Advance Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 r1bqkbnr/pp3ppp/2n1p3/2ppP3/3P4/2P5/PP3PPP/RNBQKBNR w KQkq - +C02 French Defense: Advance Variation, Euwe Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 c8d7 r2qkbnr/pp1b1ppp/2n1p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R w KQkq - +C02 French Defense: Advance Variation, Extended Bishop Swap 1. e4 e6 2. d4 d5 3. e5 Bd7 e2e4 e7e6 d2d4 d7d5 e4e5 c8d7 rn1qkbnr/pppb1ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - +C02 French Defense: Advance Variation, Frenkel Gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. b4 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 b2b4 rnbqkbnr/pp3ppp/4p3/2ppP3/1P1P4/8/P1P2PPP/RNBQKBNR b KQkq - +C02 French Defense: Advance Variation, Lputian Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Nh6 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 d8b6 a2a3 g8h6 r1b1kb1r/pp3ppp/1qn1p2n/2ppP3/3P4/P1P2N2/1P3PPP/RNBQKB1R w KQkq - +C02 French Defense: Advance Variation, Main Line 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 d8b6 a2a3 r1b1kbnr/pp3ppp/1qn1p3/2ppP3/3P4/P1P2N2/1P3PPP/RNBQKB1R b KQkq - +C02 French Defense: Advance Variation, Milner-Barry Gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 d8b6 f1d3 r1b1kbnr/pp3ppp/1qn1p3/2ppP3/3P4/2PB1N2/PP3PPP/RNBQK2R b KQkq - +C02 French Defense: Advance Variation, Nimzowitsch Attack 1. e4 e6 2. d4 d5 3. e5 c5 4. Qg4 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 d1g4 rnbqkbnr/pp3ppp/4p3/2ppP3/3P2Q1/8/PPP2PPP/RNB1KBNR b KQkq - +C02 French Defense: Advance Variation, Nimzowitsch Gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. Qg4 cxd4 5. Nf3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 d1g4 c5d4 g1f3 rnbqkbnr/pp3ppp/4p3/3pP3/3p2Q1/5N2/PPP2PPP/RNB1KB1R b KQkq - +C02 French Defense: Advance Variation, Nimzowitsch System 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 g1f3 rnbqkbnr/pp3ppp/4p3/2ppP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq - +C02 French Defense: Advance Variation, Paulsen Attack 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 r1bqkbnr/pp3ppp/2n1p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C02 French Defense: Advance Variation, Ruisdonk Gambit 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Bd3 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 g1f3 c5d4 f1d3 rnbqkbnr/pp3ppp/4p3/3pP3/3p4/3B1N2/PPP2PPP/RNBQK2R b KQkq - +C02 French Defense: Advance Variation, Steinitz Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. dxc5 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 d4c5 rnbqkbnr/pp3ppp/4p3/2PpP3/8/8/PPP2PPP/RNBQKBNR b KQkq - +C02 French Defense: Advance Variation, Wade Variation 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 d8b6 g1f3 c8d7 rn2kbnr/pp1b1ppp/1q2p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R w KQkq - +C03 French Defense: Guimard Variation, Thunderbunny Variation 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. c3 dxe4 5. Nxe4 e5 e2e4 e7e6 d2d4 d7d5 b1d2 b8c6 c2c3 d5e4 d2e4 e6e5 r1bqkbnr/ppp2ppp/2n5/4p3/3PN3/2P5/PP3PPP/R1BQKBNR w KQkq - +C03 French Defense: Tarrasch Variation 1. e4 e6 2. d4 d5 3. Nd2 e2e4 e7e6 d2d4 d7d5 b1d2 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR b KQkq - +C03 French Defense: Tarrasch Variation, Guimard Defense 1. e4 e6 2. d4 d5 3. Nd2 Nc6 e2e4 e7e6 d2d4 d7d5 b1d2 b8c6 r1bqkbnr/ppp2ppp/2n1p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C03 French Defense: Tarrasch Variation, Haberditz Variation 1. e4 e6 2. d4 d5 3. Nd2 f5 e2e4 e7e6 d2d4 d7d5 b1d2 f7f5 rnbqkbnr/ppp3pp/4p3/3p1p2/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C03 French Defense: Tarrasch Variation, Modern System 1. e4 e6 2. d4 d5 3. Nd2 a6 e2e4 e7e6 d2d4 d7d5 b1d2 a7a6 rnbqkbnr/1pp2ppp/p3p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C03 French Defense: Tarrasch Variation, Morozevich Variation 1. e4 e6 2. d4 d5 3. Nd2 Be7 e2e4 e7e6 d2d4 d7d5 b1d2 f8e7 rnbqk1nr/ppp1bppp/4p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C04 French Defense: Tarrasch Variation, Guimard Defense, Main Line 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 e2e4 e7e6 d2d4 d7d5 b1d2 b8c6 g1f3 g8f6 r1bqkb1r/ppp2ppp/2n1pn2/3p4/3PP3/5N2/PPPN1PPP/R1BQKB1R w KQkq - +C05 French Defense: Tarrasch Variation, Botvinnik Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 b6 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b7b6 rnbqkb1r/p2n1ppp/1p2p3/2ppP3/3P4/2PB4/PP1N1PPP/R1BQK1NR w KQkq - +C05 French Defense: Tarrasch Variation, Closed Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C05 French Defense: Tarrasch Variation, Closed Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6 r1bqkb1r/pp1n1ppp/2n1p3/2ppP3/3P4/2PB4/PP1N1PPP/R1BQK1NR w KQkq - +C05 French Defense: Tarrasch Variation, Pawn Center Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f2f4 rnbqkb1r/pppn1ppp/4p3/3pP3/3P1P2/8/PPPN2PP/R1BQKBNR b KQkq - +C06 French Defense: Tarrasch Variation, Closed Variation, Main Line 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6 g1e2 c5d4 c3d4 r1bqkb1r/pp1n1ppp/2n1p3/3pP3/3P4/3B4/PP1NNPPP/R1BQK2R b KQkq - +C06 French Defense: Tarrasch Variation, Leningrad Variation 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 Nb6 e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6 g1e2 c5d4 c3d4 d7b6 r1bqkb1r/pp3ppp/1nn1p3/3pP3/3P4/3B4/PP1NNPPP/R1BQK2R w KQkq - +C07 French Defense: Tarrasch Variation, Chistyakov Defense 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 d8d5 rnb1kbnr/pp3ppp/4p3/2pq4/3P4/8/PPPN1PPP/R1BQKBNR w KQkq - +C07 French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 d8d5 g1f3 c5d4 f1c4 d5d6 e1g1 g8f6 d2b3 b8c6 b3d4 c6d4 f3d4 a7a6 r1b1kb1r/1p3ppp/p2qpn2/8/2BN4/8/PPP2PPP/R1BQ1RK1 w kq - +C07 French Defense: Tarrasch Variation, Eliskases Variation 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 d8d5 g1f3 c5d4 f1c4 d5d8 rnbqkbnr/pp3ppp/4p3/8/2Bp4/5N2/PPPN1PPP/R1BQK2R w KQkq - +C07 French Defense: Tarrasch Variation, Open System 1. e4 e6 2. d4 d5 3. Nd2 c5 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq - +C07 French Defense: Tarrasch Variation, Open System, Euwe-Keres Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 g1f3 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/5N2/PPPN1PPP/R1BQKB1R b KQkq - +C07 French Defense: Tarrasch Variation, Open System, Shaposhnikov Gambit 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Nf6 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 g8f6 rnbqkb1r/pp3ppp/4pn2/2pP4/3P4/8/PPPN1PPP/R1BQKBNR w KQkq - +C07 French Defense: Tarrasch Variation, Open System, Süchting Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 c2c3 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/2P5/PP1N1PPP/R1BQKBNR b KQkq - +C08 French Defense: Tarrasch Variation, Open System 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 e6d5 rnbqkbnr/pp3ppp/8/2pp4/3P4/8/PPPN1PPP/R1BQKBNR w KQkq - +C08 French Defense: Tarrasch Variation, Open System, Advance Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 c4 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 e6d5 g1f3 c5c4 rnbqkbnr/pp3ppp/8/3p4/2pP4/5N2/PPPN1PPP/R1BQKB1R w KQkq - +C09 French Defense: Tarrasch Variation, Open System, Main Line 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 e6d5 g1f3 b8c6 r1bqkbnr/pp3ppp/2n5/2pp4/3P4/5N2/PPPN1PPP/R1BQKB1R w KQkq - +C10 French Defense: Classical Variation, Svenonius Variation 1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. exd5 e2e4 e7e6 d2d4 d7d5 b1c3 b8c6 e4d5 r1bqkbnr/ppp2ppp/2n1p3/3P4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C10 French Defense: Paulsen Variation 1. e4 e6 2. d4 d5 3. Nc3 e2e4 e7e6 d2d4 d7d5 b1c3 rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +C10 French Defense: Rubinstein Variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 rnbqkbnr/ppp2ppp/4p3/8/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C10 French Defense: Rubinstein Variation, Blackburne Defense 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7 r1bqkbnr/pppn1ppp/4p3/8/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +C10 French Defense: Rubinstein Variation, Capablanca Line 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7 g1f3 g8f6 e4f6 d7f6 f3e5 r1bqkb1r/ppp2ppp/4pn2/4N3/3P4/8/PPP2PPP/R1BQKB1R b KQkq - +C10 French Defense: Rubinstein Variation, Ellis Gambit 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 e5 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 e6e5 rnbqkbnr/ppp2ppp/8/4p3/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +C10 French Defense: Rubinstein Variation, Fort Knox Variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 c8d7 g1f3 d7c6 rn1qkbnr/ppp2ppp/2b1p3/8/3PN3/5N2/PPP2PPP/R1BQKB1R w KQkq - +C10 French Defense: Rubinstein Variation, Kasparov Attack 1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. c3 e2e4 e7e6 d2d4 d7d5 b1d2 d5e4 d2e4 b8d7 g1f3 g8f6 e4f6 d7f6 c2c3 r1bqkb1r/ppp2ppp/4pn2/8/3P4/2P2N2/PP3PPP/R1BQKB1R b KQkq - +C10 French Defense: Rubinstein Variation, Maric Variation 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Qd5 e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 d8d5 rnb1kbnr/ppp2ppp/4p3/3q4/3PN3/8/PPP2PPP/R1BQKBNR w KQkq - +C10 Sicilian Defense: Marshall Gambit 1. e4 c5 2. Nc3 e6 3. d4 d5 e2e4 c7c5 b1c3 e7e6 d2d4 d7d5 rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C11 French Defense: Burn Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq - +C11 French Defense: Classical Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C11 French Defense: Classical Variation, Burn Variation, Main Line 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 O-O e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 d5e4 c3e4 f8e7 g5f6 e7f6 g1f3 e8g8 rnbq1rk1/ppp2ppp/4pb2/8/3PN3/5N2/PPP2PPP/R2QKB1R w KQ - +C11 French Defense: Classical Variation, Burn Variation, Morozevich Line 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 d5e4 c3e4 f8e7 g5f6 g7f6 rnbqk2r/ppp1bp1p/4pp2/8/3PN3/8/PPP2PPP/R2QKBNR w KQkq - +C11 French Defense: Classical Variation, Delayed Exchange Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. exd5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4d5 rnbqkb1r/ppp2ppp/4pn2/3P4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C11 French Defense: Classical Variation, Steinitz Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 rnbqkb1r/ppp2ppp/4pn2/3pP3/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C11 French Defense: Classical Variation, Swiss Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bd3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 f1d3 rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2NB4/PPP2PPP/R1BQK1NR b KQkq - +C11 French Defense: Henneberger Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Be3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1e3 rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq - +C11 French Defense: Steinitz Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 b8c6 r1bqkb1r/pp1n1ppp/2n1p3/2PpP3/5P2/2N5/PPP3PP/R1BQKBNR w KQkq - +C11 French Defense: Steinitz Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 g1f3 rnbqkb1r/pp1n1ppp/4p3/2ppP3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQkq - +C11 French Defense: Steinitz Variation, Boleslavsky Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 g1f3 b8c6 c1e3 r1bqkb1r/pp1n1ppp/2n1p3/2ppP3/3P1P2/2N1BN2/PPP3PP/R2QKB1R b KQkq - +C11 French Defense: Steinitz Variation, Bradford Attack Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Bxc5 7. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 f8c5 d1g4 rnbqk2r/pp1n1ppp/4p3/2bpP3/5PQ1/2N5/PPP3PP/R1B1KBNR b KQkq - +C11 French Defense: Steinitz Variation, Brodsky-Jones Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6 7. a3 Bxc5 8. Qg4 O-O 9. Nf3 f6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 b8c6 a2a3 f8c5 d1g4 e8g8 g1f3 f7f6 r1bq1rk1/pp1n2pp/2n1pp2/2bpP3/5PQ1/P1N2N2/1PP3PP/R1B1KB1R w KQ - +C11 French Defense: Steinitz Variation, Gledhill Attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 d1g4 rnbqkb1r/pppn1ppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R1B1KBNR b KQkq - +C12 French Defense: MacCutcheon Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 rnbqk2r/ppp2ppp/4pn2/3p2B1/1b1PP3/2N5/PPP2PPP/R2QKBNR w KQkq - +C12 French Defense: MacCutcheon Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 rnbqk2r/ppp2ppp/4pn2/3pP1B1/1b1P4/2N5/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Bernstein Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bh4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5h4 rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P3B/2N5/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Bogoljubov Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. exd5 Qxd5 6. Bxf6 gxf6 7. Qd2 Qa5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4d5 d8d5 g5f6 g7f6 d1d2 d5a5 rnb1k2r/ppp2p1p/4pp2/q7/1b1P4/2N5/PPPQ1PPP/R3KBNR w KQkq - +C12 French Defense: MacCutcheon Variation, Chigorin Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. exf6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 e5f6 rnbqk2r/ppp2pp1/4pP1p/3p2B1/1b1P4/2N5/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Dr. Olland Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bc1 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5c1 rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Duras Variation 1. e4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 Kf8 9. Bc1 e2e4 e7e6 b1c3 d7d5 d2d4 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3 b2c3 f6e4 d1g4 e8f8 d2c1 rnbq1k1r/ppp2pp1/4p2p/3pP3/3Pn1Q1/2P5/P1P2PPP/R1B1KBNR b KQ - +C12 French Defense: MacCutcheon Variation, Exchange Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. exd5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4d5 rnbqk2r/ppp2ppp/4pn2/3P2B1/1b1P4/2N5/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Grigoriev Variation 1. d4 d5 2. Nc3 Nf6 3. Bg5 e6 4. e4 Bb4 5. e5 h6 6. exf6 hxg5 7. fxg7 Rg8 8. h4 gxh4 9. Qg4 d2d4 d7d5 b1c3 g8f6 c1g5 e7e6 e2e4 f8b4 e4e5 h7h6 e5f6 h6g5 f6g7 h8g8 h2h4 g5h4 d1g4 rnbqk1r1/ppp2pP1/4p3/3p4/1b1P2Qp/2N5/PPP2PP1/R3KBNR b KQq - +C12 French Defense: MacCutcheon Variation, Janowski Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Be3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5e3 rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P4/2N1B3/PPP2PPP/R2QKBNR b KQkq - +C12 French Defense: MacCutcheon Variation, Lasker Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3 rnbqk2r/ppp2pp1/4pn1p/3pP3/3P4/2b5/PPPB1PPP/R2QKBNR w KQkq - +C12 French Defense: MacCutcheon Variation, Lasker Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 g6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3 b2c3 f6e4 d1g4 g7g6 rnbqk2r/ppp2p2/4p1pp/3pP3/3Pn1Q1/2P5/P1PB1PPP/R3KBNR w KQkq - +C12 French Defense: MacCutcheon Variation, Tartakower Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Nfd7 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 f6d7 rnbqk2r/pppn1pp1/4p2p/3pP3/1b1P4/2N5/PPPB1PPP/R2QKBNR w KQkq - +C13 French Defense: Alekhine-Chatard Attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 rnbqk2r/pppnbppp/4p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR b KQkq - +C13 French Defense: Alekhine-Chatard Attack, Albin-Chatard Gambit 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 Bxg5 7. hxg5 Qxg5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 e7g5 h4g5 d8g5 rnb1k2r/pppn1ppp/4p3/3pP1q1/3P4/2N5/PPP2PP1/R2QKBNR w KQkq - +C13 French Defense: Alekhine-Chatard Attack, Breyer Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 c7c5 rnbqk2r/pp1nbppp/4p3/2ppP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq - +C13 French Defense: Alekhine-Chatard Attack, Maróczy Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 a6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 a7a6 rnbqk2r/1ppnbppp/p3p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq - +C13 French Defense: Alekhine-Chatard Attack, Spielmann Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 O-O e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 e8g8 rnbq1rk1/pppnbppp/4p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQ - +C13 French Defense: Alekhine-Chatard Attack, Teichmann Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 f6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 f7f6 rnbqk2r/pppnb1pp/4pp2/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq - +C13 French Defense: Classical Variation, Frankfurt Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ng8 6. Be3 b6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6g8 g5e3 b7b6 rnbqk1nr/p1p1bppp/1p2p3/3pP3/3P4/2N1B3/PPP2PPP/R2QKBNR w KQkq - +C13 French Defense: Classical Variation, Normal Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 rnbqk2r/ppp1bppp/4pn2/3p2B1/3PP3/2N5/PPP2PPP/R2QKBNR w KQkq - +C13 French Defense: Classical Variation, Richter Attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 g5f6 rnbqk2r/ppp1bppp/4pB2/3p4/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq - +C13 French Defense: Classical Variation, Richter Attack 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. e5 Be7 7. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 g5f6 e7f6 e4e5 f6e7 d1g4 rnbqk2r/ppp1bppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R3KBNR b KQkq - +C13 French Defense: Classical Variation, Tartakower Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ne4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6e4 rnbqk2r/ppp1bppp/4p3/3pP1B1/3Pn3/2N5/PPP2PPP/R2QKBNR w KQkq - +C13 French Defense: Classical Variation, Vistaneckis Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ng8 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6g8 rnbqk1nr/ppp1bppp/4p3/3pP1B1/3P4/2N5/PPP2PPP/R2QKBNR w KQkq - +C14 French Defense: Classical Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 rnb1k2r/pppnqppp/4p3/3pP3/3P4/2N5/PPP2PPP/R2QKBNR w KQkq - +C14 French Defense: Classical Variation, Alapin Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Nb5 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 c3b5 rnb1k2r/pppnqppp/4p3/1N1pP3/3P4/8/PPP2PPP/R2QKBNR b KQkq - +C14 French Defense: Classical Variation, Pollock Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 d1g4 rnb1k2r/pppnqppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R3KBNR b KQkq - +C14 French Defense: Classical Variation, Rubinstein Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qd2 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 d1d2 rnb1k2r/pppnqppp/4p3/3pP3/3P4/2N5/PPPQ1PPP/R3KBNR b KQkq - +C14 French Defense: Classical Variation, Stahlberg Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 O-O 8. Nf3 c5 9. Qd2 Nc6 10. O-O-O c4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f2f4 e8g8 g1f3 c7c5 d1d2 b8c6 e1c1 c5c4 r1b2rk1/pp1nqppp/2n1p3/3pP3/2pP1P2/2N2N2/PPPQ2PP/2KR1B1R w - - +C14 French Defense: Classical Variation, Steinitz Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f2f4 rnb1k2r/pppnqppp/4p3/3pP3/3P1P2/2N5/PPP3PP/R2QKBNR b KQkq - +C14 French Defense: Classical Variation, Tarrasch Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Bd3 e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f1d3 rnb1k2r/pppnqppp/4p3/3pP3/3P4/2NB4/PPP2PPP/R2QK1NR b KQkq - +C15 French Defense: MacCutcheon Variation, Wolf Gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 Nf6 5. Bg5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 g8f6 c1g5 rnbqk2r/ppp2ppp/4pn2/3p2B1/1b1PP3/2N5/PPP1NPPP/R2QKB1R b KQkq - +C15 French Defense: Winawer Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C15 French Defense: Winawer Variation, Alekhine Gambit Accepted 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Bxc3+ e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4c3 rnbqk1nr/ppp2ppp/4p3/8/3Pp3/P1b5/1PP1NPPP/R1BQKB1R w KQkq - +C15 French Defense: Winawer Variation, Alekhine Gambit, Alatortsev Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. N2g3 O-O 8. Be2 Nc6 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4e7 c3e4 g8f6 e2g3 e8g8 f1e2 b8c6 r1bq1rk1/ppp1bppp/2n1pn2/8/3PN3/P5N1/1PP1BPPP/R1BQK2R w KQ - +C15 French Defense: Winawer Variation, Alekhine Gambit, Kan Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Bxc3+ 6. Nxc3 Nc6 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4c3 e2c3 b8c6 r1bqk1nr/ppp2ppp/2n1p3/8/3Pp3/P1N5/1PP2PPP/R1BQKB1R w KQkq - +C15 French Defense: Winawer Variation, Alekhine-Maróczy Gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPP1NPPP/R1BQKB1R b KQkq - +C15 French Defense: Winawer Variation, Delayed Exchange Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4d5 rnbqk1nr/ppp2ppp/4p3/3P4/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C15 French Defense: Winawer Variation, Exchange Variation, Canal Attack 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Ne7 6. Qh5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4d5 e6d5 f1d3 g8e7 d1h5 rnbqk2r/ppp1nppp/8/3p3Q/1b1P4/2NB4/PPP2PPP/R1B1K1NR b KQkq - +C15 French Defense: Winawer Variation, Fingerslip Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2 rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPPB1PPP/R2QKBNR b KQkq - +C15 French Defense: Winawer Variation, Fingerslip Variation, Kunin Double Gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 dxe4 5. Qg4 Qxd4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2 d5e4 d1g4 d8d4 rnb1k1nr/ppp2ppp/4p3/8/1b1qp1Q1/2N5/PPPB1PPP/R3KBNR w KQkq - +C15 French Defense: Winawer Variation, Fingerslip Variation, Main Line 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 dxe4 5. Qg4 Nf6 6. Qxg7 Rg8 7. Qh6 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2 d5e4 d1g4 g8f6 g4g7 h8g8 g7h6 rnbqk1r1/ppp2p1p/4pn1Q/8/1b1Pp3/2N5/PPPB1PPP/R3KBNR b KQq - +C15 French Defense: Winawer Variation, Fingerslip Variation, Schwarz's Line 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 Ne7 5. Nb1 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2 g8e7 c3b1 rnbqk2r/ppp1nppp/4p3/3p4/1b1PP3/8/PPPB1PPP/RN1QKBNR b KQkq - +C15 French Defense: Winawer Variation, Kondratiyev Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd3 c5 5. exd5 Qxd5 6. Bd2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 f1d3 c7c5 e4d5 d8d5 c1d2 rnb1k1nr/pp3ppp/4p3/2pq4/1b1P4/2NB4/PPPB1PPP/R2QK1NR b KQkq - +C15 French Defense: Winawer Variation, Winckelmann-Riemer Gambit 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 a2a3 rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/P1N5/1PP2PPP/R1BQKBNR b KQkq - +C16 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 rnbqk1nr/ppp2ppp/4p3/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq - +C16 French Defense: Winawer Variation, Petrosian Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 d8d7 rnb1k1nr/pppq1ppp/4p3/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +C17 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq - +C17 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/P1N5/1PP2PPP/R1BQKBNR b KQkq - +C17 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 7. Nf3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 c5d4 a3b4 d4c3 g1f3 rnbqk1nr/pp3ppp/4p3/3pP3/1P6/2p2N2/1PP2PPP/R1BQKB1R b KQkq - +C17 French Defense: Winawer Variation, Advance Variation, Moscow Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 d1g4 rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P2Q1/2N5/PPP2PPP/R1B1KBNR b KQkq - +C17 French Defense: Winawer Variation, Bogoljubov Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 c1d2 rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/2N5/PPPB1PPP/R2QKBNR b KQkq - +C17 French Defense: Winawer Variation, Bogoljubov Variation, Icelandic Defense 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. f4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 c1d2 g8e7 f2f4 rnbqk2r/pp2nppp/4p3/2ppP3/1b1P1P2/2N5/PPPB2PP/R2QKBNR b KQkq - +C17 French Defense: Winawer Variation, Maróczy-Wallis Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 c5d4 a3b4 d4c3 rnbqk1nr/pp3ppp/4p3/3pP3/1P6/2p5/1PP2PPP/R1BQKBNR w KQkq - +C17 French Defense: Winawer Variation, Retreat Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4a5 rnbqk1nr/pp3ppp/4p3/b1ppP3/3P4/P1N5/1PP2PPP/R1BQKBNR w KQkq - +C17 French Defense: Winawer Variation, Retreat Variation, Armenian Line 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4a5 b2b4 c5d4 rnbqk1nr/pp3ppp/4p3/b2pP3/1P1p4/P1N5/2P2PPP/R1BQKBNR w KQkq - +C18 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 rnbqk1nr/pp3ppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR b KQkq - +C18 French Defense: Winawer Variation, Classical Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 d8c7 rnb1k1nr/ppq2ppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR w KQkq - +C19 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 rnbqk2r/pp2nppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR w KQkq - +C19 French Defense: Winawer Variation, Advance Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. a4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 a3a4 rnbqk2r/pp2nppp/4p3/2ppP3/P2P4/2P5/2P2PPP/R1BQKBNR b KQkq - +C19 French Defense: Winawer Variation, Poisoned Pawn Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4 rnbqk2r/pp2nppp/4p3/2ppP3/3P2Q1/P1P5/2P2PPP/R1B1KBNR b KQkq - +C19 French Defense: Winawer Variation, Poisoned Pawn Variation, Main Line 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4 d8c7 g4g7 h8g8 g7h7 c5d4 g1e2 rnb1k1r1/ppq1np1Q/4p3/3pP3/3p4/P1P5/2P1NPPP/R1B1KB1R b KQq - +C19 French Defense: Winawer Variation, Poisoned Pawn Variation, Paoli Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Kd1 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4 d8c7 g4g7 h8g8 g7h7 c5d4 e1d1 rnb1k1r1/ppq1np1Q/4p3/3pP3/3p4/P1P5/2P2PPP/R1BK1BNR b q - +C19 French Defense: Winawer Variation, Positional Variation 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 g1f3 rnbqk2r/pp2nppp/4p3/2ppP3/3P4/P1P2N2/2P2PPP/R1BQKB1R b KQkq - +C20 Barnes Opening: Walkerling 1. f3 e5 2. e4 Nf6 3. Bc4 f2f3 e7e5 e2e4 g8f6 f1c4 rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/5P2/PPPP2PP/RNBQK1NR b KQkq - +C20 Bongcloud Attack 1. e4 e5 2. Ke2 e2e4 e7e5 e1e2 rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPPKPPP/RNBQ1BNR b kq - +C20 Center Game 1. e4 e5 2. d4 e2e4 e7e5 d2d4 rnbqkbnr/pppp1ppp/8/4p3/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +C20 English Opening: The Whale 1. e4 e5 2. c4 e2e4 e7e5 c2c4 rnbqkbnr/pppp1ppp/8/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - +C20 King's Pawn Game 1. e4 e5 e2e4 e7e5 rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Alapin Opening 1. e4 e5 2. Ne2 e2e4 e7e5 g1e2 rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPPNPPP/RNBQKB1R b KQkq - +C20 King's Pawn Game: Bavarian Gambit 1. e4 e5 2. c4 d5 e2e4 e7e5 c2c4 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Beyer Gambit 1. e4 e5 2. d4 d5 e2e4 e7e5 d2d4 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Clam Variation, King's Gambit Reversed 1. e4 e5 2. d3 f5 e2e4 e7e5 d2d3 f7f5 rnbqkbnr/pppp2pp/8/4pp2/4P3/3P4/PPP2PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: King's Head Opening 1. e4 e5 2. f3 e2e4 e7e5 f2f3 rnbqkbnr/pppp1ppp/8/4p3/4P3/5P2/PPPP2PP/RNBQKBNR b KQkq - +C20 King's Pawn Game: King's Head Opening 1. e4 e5 2. f3 Nf6 3. Nc3 e2e4 e7e5 f2f3 g8f6 b1c3 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N2P2/PPPP2PP/R1BQKBNR b KQkq - +C20 King's Pawn Game: Leonardis Variation 1. e4 e5 2. d3 e2e4 e7e5 d2d3 rnbqkbnr/pppp1ppp/8/4p3/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - +C20 King's Pawn Game: Macleod Attack 1. e4 e5 2. c3 e2e4 e7e5 c2c3 rnbqkbnr/pppp1ppp/8/4p3/4P3/2P5/PP1P1PPP/RNBQKBNR b KQkq - +C20 King's Pawn Game: Macleod Attack, Lasa Gambit 1. e4 e5 2. c3 f5 e2e4 e7e5 c2c3 f7f5 rnbqkbnr/pppp2pp/8/4pp2/4P3/2P5/PP1P1PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Macleod Attack, Norwalde Gambit 1. e4 e5 2. c3 d5 3. Qh5 Bd6 e2e4 e7e5 c2c3 d7d5 d1h5 f8d6 rnbqk1nr/ppp2ppp/3b4/3pp2Q/4P3/2P5/PP1P1PPP/RNB1KBNR w KQkq - +C20 King's Pawn Game: Mengarini's Opening 1. e4 e5 2. a3 e2e4 e7e5 a2a3 rnbqkbnr/pppp1ppp/8/4p3/4P3/P7/1PPP1PPP/RNBQKBNR b KQkq - +C20 King's Pawn Game: Napoleon Attack 1. e4 e5 2. Qf3 e2e4 e7e5 d1f3 rnbqkbnr/pppp1ppp/8/4p3/4P3/5Q2/PPPP1PPP/RNB1KBNR b KQkq - +C20 King's Pawn Game: Philidor Gambit 1. e4 e5 2. d4 d6 3. dxe5 Bd7 e2e4 e7e5 d2d4 d7d6 d4e5 c8d7 rn1qkbnr/pppb1ppp/3p4/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - +C20 King's Pawn Game: Tortoise Opening 1. e4 e5 2. Bd3 e2e4 e7e5 f1d3 rnbqkbnr/pppp1ppp/8/4p3/4P3/3B4/PPPP1PPP/RNBQK1NR b KQkq - +C20 King's Pawn Game: Wayward Queen Attack 1. e4 e5 2. Qh5 e2e4 e7e5 d1h5 rnbqkbnr/pppp1ppp/8/4p2Q/4P3/8/PPPP1PPP/RNB1KBNR b KQkq - +C20 King's Pawn Game: Wayward Queen Attack, Kiddie Countergambit 1. e4 e5 2. Qh5 Nf6 e2e4 e7e5 d1h5 g8f6 rnbqkb1r/pppp1ppp/5n2/4p2Q/4P3/8/PPPP1PPP/RNB1KBNR w KQkq - +C20 King's Pawn Game: Wayward Queen Attack, Mellon Gambit 1. e4 e5 2. Qh5 Nc6 3. Bc4 Nh6 4. d3 g6 5. Qf3 f6 6. Ne2 d5 e2e4 e7e5 d1h5 b8c6 f1c4 g8h6 d2d3 g7g6 h5f3 f7f6 g1e2 d7d5 r1bqkb1r/ppp4p/2n2ppn/3pp3/2B1P3/3P1Q2/PPP1NPPP/RNB1K2R w KQkq - +C20 King's Pawn Game: Weber Gambit 1. e4 e5 2. d3 d5 3. exd5 c6 4. dxc6 Nxc6 e2e4 e7e5 d2d3 d7d5 e4d5 c7c6 d5c6 b8c6 r1bqkbnr/pp3ppp/2n5/4p3/8/3P4/PPP2PPP/RNBQKBNR w KQkq - +C20 King's Pawn Opening 1. e4 e5 2. b3 e2e4 e7e5 b2b3 rnbqkbnr/pppp1ppp/8/4p3/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - +C20 King's Pawn Opening: Speers 1. e4 e5 2. Qg4 Nf6 3. Qf5 e2e4 e7e5 d1g4 g8f6 g4f5 rnbqkb1r/pppp1ppp/5n2/4pQ2/4P3/8/PPPP1PPP/RNB1KBNR b KQkq - +C20 King's Pawn Opening: Van Hooydoon Gambit 1. e4 e5 2. Qe2 Nc6 3. c3 Nf6 4. Nf3 Bc5 5. d4 exd4 6. cxd4 Nxd4 e2e4 e7e5 d1e2 b8c6 c2c3 g8f6 g1f3 f8c5 d2d4 e5d4 c3d4 c6d4 r1bqk2r/pppp1ppp/5n2/2b5/3nP3/5N2/PP2QPPP/RNB1KB1R w KQkq - +C20 Portuguese Opening 1. e4 e5 2. Bb5 e2e4 e7e5 f1b5 rnbqkbnr/pppp1ppp/8/1B2p3/4P3/8/PPPP1PPP/RNBQK1NR b KQkq - +C20 Portuguese Opening: Miguel Gambit 1. e4 e5 2. Bb5 Bc5 3. b4 e2e4 e7e5 f1b5 f8c5 b2b4 rnbqk1nr/pppp1ppp/8/1Bb1p3/1P2P3/8/P1PP1PPP/RNBQK1NR b KQkq - +C20 Portuguese Opening: Portuguese Gambit 1. e4 e5 2. Bb5 Nf6 3. d4 e2e4 e7e5 f1b5 g8f6 d2d4 rnbqkb1r/pppp1ppp/5n2/1B2p3/3PP3/8/PPP2PPP/RNBQK1NR b KQkq - +C21 Center Game 1. e4 e5 2. d4 exd4 3. Qxd4 e2e4 e7e5 d2d4 e5d4 d1d4 rnbqkbnr/pppp1ppp/8/8/3QP3/8/PPP2PPP/RNB1KBNR b KQkq - +C21 Center Game Accepted 1. e4 e5 2. d4 exd4 e2e4 e7e5 d2d4 e5d4 rnbqkbnr/pppp1ppp/8/8/3pP3/8/PPP2PPP/RNBQKBNR w KQkq - +C21 Center Game: Halasz-McDonnell Gambit 1. e4 e5 2. d4 exd4 3. f4 e2e4 e7e5 d2d4 e5d4 f2f4 rnbqkbnr/pppp1ppp/8/8/3pPP2/8/PPP3PP/RNBQKBNR b KQkq - +C21 Center Game: Halasz-McDonnell Gambit, Crocodile Variation 1. e4 e5 2. d4 exd4 3. f4 Bc5 4. Nf3 Nc6 5. c3 e2e4 e7e5 d2d4 e5d4 f2f4 f8c5 g1f3 b8c6 c2c3 r1bqk1nr/pppp1ppp/2n5/2b5/3pPP2/2P2N2/PP4PP/RNBQKB1R b KQkq - +C21 Center Game: Kieseritzky Variation 1. e4 e5 2. d4 exd4 3. Nf3 e2e4 e7e5 d2d4 e5d4 g1f3 rnbqkbnr/pppp1ppp/8/8/3pP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C21 Center Game: Kieseritzky Variation 1. e4 e5 2. d4 exd4 3. Nf3 c5 e2e4 e7e5 d2d4 e5d4 g1f3 c7c5 rnbqkbnr/pp1p1ppp/8/2p5/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C21 Center Game: Kieseritzky Variation 1. e4 e5 2. d4 exd4 3. Nf3 c5 4. Bc4 e2e4 e7e5 d2d4 e5d4 g1f3 c7c5 f1c4 rnbqkbnr/pp1p1ppp/8/2p5/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C21 Center Game: Kieseritzky Variation 1. e4 e5 2. d4 exd4 3. Nf3 c5 4. Bc4 b5 e2e4 e7e5 d2d4 e5d4 g1f3 c7c5 f1c4 b7b5 rnbqkbnr/p2p1ppp/8/1pp5/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C21 Center Game: Lanc-Arnold Gambit 1. e4 e5 2. d4 exd4 3. Nf3 Bc5 4. c3 e2e4 e7e5 d2d4 e5d4 g1f3 f8c5 c2c3 rnbqk1nr/pppp1ppp/8/2b5/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C21 Center Game: Lanc-Arnold Gambit, Schippler Gambit 1. e4 e5 2. d4 exd4 3. Nf3 Bc5 4. c3 dxc3 5. Bc4 e2e4 e7e5 d2d4 e5d4 g1f3 f8c5 c2c3 d4c3 f1c4 rnbqk1nr/pppp1ppp/8/2b5/2B1P3/2p2N2/PP3PPP/RNBQK2R b KQkq - +C21 Center Game: Ross Gambit 1. e4 e5 2. d4 exd4 3. Bd3 e2e4 e7e5 d2d4 e5d4 f1d3 rnbqkbnr/pppp1ppp/8/8/3pP3/3B4/PPP2PPP/RNBQK1NR b KQkq - +C21 Center Game: von der Lasa Gambit 1. e4 e5 2. d4 exd4 3. Bc4 e2e4 e7e5 d2d4 e5d4 f1c4 rnbqkbnr/pppp1ppp/8/8/2BpP3/8/PPP2PPP/RNBQK1NR b KQkq - +C21 Danish Gambit 1. e4 e5 2. d4 exd4 3. c3 e2e4 e7e5 d2d4 e5d4 c2c3 rnbqkbnr/pppp1ppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR b KQkq - +C21 Danish Gambit Accepted 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 rnbqkbnr/pppp1ppp/8/8/2B1P3/8/PB3PPP/RN1QK1NR b KQkq - +C21 Danish Gambit Accepted: Chigorin Defense 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Qe7 e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 d8e7 rnb1kbnr/ppppqppp/8/8/2B1P3/8/PB3PPP/RN1QK1NR w KQkq - +C21 Danish Gambit Accepted: Classical Defense 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Nf6 e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 g8f6 rnbqkb1r/pppp1ppp/5n2/8/2B1P3/8/PB3PPP/RN1QK1NR w KQkq - +C21 Danish Gambit Accepted: Copenhagen Defense 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Bb4+ e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 f8b4 rnbqk1nr/pppp1ppp/8/8/1bB1P3/8/PB3PPP/RN1QK1NR w KQkq - +C21 Danish Gambit Accepted: Schlechter Defense 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 d5 e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 d7d5 rnbqkbnr/ppp2ppp/8/3p4/2B1P3/8/PB3PPP/RN1QK1NR w KQkq - +C21 Danish Gambit Accepted: Svenonius Defense 1. e4 e5 2. d4 exd4 3. c3 Ne7 e2e4 e7e5 d2d4 e5d4 c2c3 g8e7 rnbqkb1r/ppppnppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +C21 Danish Gambit Declined: Sorensen Defense 1. e4 e5 2. d4 exd4 3. c3 d5 e2e4 e7e5 d2d4 e5d4 c2c3 d7d5 rnbqkbnr/ppp2ppp/8/3p4/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq - +C22 Center Game: Berger Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 g8f6 r1bqkb1r/pppp1ppp/2n2n2/8/4P3/4Q3/PPP2PPP/RNB1KBNR w KQkq - +C22 Center Game: Charousek Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Bb4+ 5. c3 Be7 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 f8b4 c2c3 b4e7 r1bqk1nr/ppppbppp/2n5/8/4P3/2P1Q3/PP3PPP/RNB1KBNR w KQkq - +C22 Center Game: Hall Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qc4 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4c4 r1bqkbnr/pppp1ppp/2n5/8/2Q1P3/8/PPP2PPP/RNB1KBNR b KQkq - +C22 Center Game: Kupreichik Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 5. Nc3 Bb4 6. Bd2 O-O 7. O-O-O Re8 8. Bc4 d6 9. Nh3 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 g8f6 b1c3 f8b4 c1d2 e8g8 e1c1 f8e8 f1c4 d7d6 g1h3 r1bqr1k1/ppp2ppp/2np1n2/8/1bB1P3/2N1Q2N/PPPB1PPP/2KR3R b - - +C22 Center Game: Normal Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 r1bqkbnr/pppp1ppp/2n5/8/3QP3/8/PPP2PPP/RNB1KBNR w KQkq - +C22 Center Game: Paulsen Attack Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 r1bqkbnr/pppp1ppp/2n5/8/4P3/4Q3/PPP2PPP/RNB1KBNR b KQkq - +C22 Center Game: l'Hermet Variation 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 f5 e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 f7f5 r1bqkbnr/pppp2pp/2n5/5p2/4P3/4Q3/PPP2PPP/RNB1KBNR w KQkq - +C23 Bishop's Opening 1. e4 e5 2. Bc4 e2e4 e7e5 f1c4 rnbqkbnr/pppp1ppp/8/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Anderssen Gambit 1. e4 e5 2. Bc4 b5 3. Bxb5 c6 e2e4 e7e5 f1c4 b7b5 c4b5 c7c6 rnbqkbnr/p2p1ppp/2p5/1B2p3/4P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Boi Variation 1. e4 e5 2. Bc4 Bc5 e2e4 e7e5 f1c4 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Calabrese Countergambit 1. e4 e5 2. Bc4 f5 e2e4 e7e5 f1c4 f7f5 rnbqkbnr/pppp2pp/8/4pp2/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Calabrese Countergambit, Jaenisch Variation 1. e4 e5 2. Bc4 f5 3. d3 e2e4 e7e5 f1c4 f7f5 d2d3 rnbqkbnr/pppp2pp/8/4pp2/2B1P3/3P4/PPP2PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Four Pawns Gambit 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 exf4 5. Nf3 Be7 6. d4 Bh4+ 7. g3 fxg3 8. O-O gxh2+ 9. Kh1 e2e4 e7e5 f1c4 f8c5 b2b4 c5b4 f2f4 e5f4 g1f3 b4e7 d2d4 e7h4 g2g3 f4g3 e1g1 g3h2 g1h1 rnbqk1nr/pppp1ppp/8/8/2BPP2b/5N2/P1P4p/RNBQ1R1K b kq - +C23 Bishop's Opening: Khan Gambit 1. e4 e5 2. Bc4 d5 e2e4 e7e5 f1c4 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Lewis Countergambit 1. e4 e5 2. Bc4 Bc5 3. c3 d5 e2e4 e7e5 f1c4 f8c5 c2c3 d7d5 rnbqk1nr/ppp2ppp/8/2bpp3/2B1P3/2P5/PP1P1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Lewis Countergambit 1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 e2e4 e7e5 f1c4 f8c5 c2c3 d7d5 c4d5 g8f6 rnbqk2r/ppp2ppp/5n2/2bBp3/4P3/2P5/PP1P1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Lewis Countergambit, Walker Variation 1. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 5. d4 e2e4 e7e5 f1c4 f8c5 c2c3 d7d5 c4d5 g8f6 d2d4 rnbqk2r/ppp2ppp/5n2/2bBp3/3PP3/2P5/PP3PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Lewis Gambit 1. e4 e5 2. Bc4 Bc5 3. d4 e2e4 e7e5 f1c4 f8c5 d2d4 rnbqk1nr/pppp1ppp/8/2b1p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Lisitsyn Variation 1. e4 e5 2. Bc4 c6 3. d4 d5 4. exd5 cxd5 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. dxe5 Nxe5 8. Ne2 e2e4 e7e5 f1c4 c7c6 d2d4 d7d5 e4d5 c6d5 c4b5 c8d7 b5d7 b8d7 d4e5 d7e5 g1e2 r2qkbnr/pp3ppp/8/3pn3/8/8/PPP1NPPP/RNBQK2R b KQkq - +C23 Bishop's Opening: Lopez Gambit 1. e4 e5 2. Bc4 Bc5 3. Qe2 Nc6 4. c3 Nf6 5. f4 e2e4 e7e5 f1c4 f8c5 d1e2 b8c6 c2c3 g8f6 f2f4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1PP2/2P5/PP1PQ1PP/RNB1K1NR b KQkq - +C23 Bishop's Opening: Lopez Variation 1. e4 e5 2. Bc4 Bc5 3. Qe2 e2e4 e7e5 f1c4 f8c5 d1e2 rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/8/PPPPQPPP/RNB1K1NR b KQkq - +C23 Bishop's Opening: Lopez Variation, Lopez Gambit 1. e4 e5 2. Bc4 Bc5 3. Qe2 Nf6 4. f4 e2e4 e7e5 f1c4 f8c5 d1e2 g8f6 f2f4 rnbqk2r/pppp1ppp/5n2/2b1p3/2B1PP2/8/PPPPQ1PP/RNB1K1NR b KQkq - +C23 Bishop's Opening: McDonnell Gambit 1. e4 e5 2. Bc4 Bc5 3. b4 e2e4 e7e5 f1c4 f8c5 b2b4 rnbqk1nr/pppp1ppp/8/2b1p3/1PB1P3/8/P1PP1PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: McDonnell Gambit, La Bourdonnais-Denker Gambit 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. c3 e2e4 e7e5 f1c4 f8c5 b2b4 c5b4 c2c3 rnbqk1nr/pppp1ppp/8/4p3/1bB1P3/2P5/P2P1PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: McDonnell Gambit, McDonnell Double Gambit 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 e2e4 e7e5 f1c4 f8c5 b2b4 c5b4 f2f4 rnbqk1nr/pppp1ppp/8/4p3/1bB1PP2/8/P1PP2PP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Philidor Counterattack 1. e4 e5 2. Bc4 c6 e2e4 e7e5 f1c4 c7c6 rnbqkbnr/pp1p1ppp/2p5/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: Philidor Variation 1. e4 e5 2. Bc4 Bc5 3. c3 e2e4 e7e5 f1c4 f8c5 c2c3 rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/2P5/PP1P1PPP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Pratt Variation 1. e4 e5 2. Bc4 Bc5 3. c3 Nf6 4. d4 exd4 5. e5 d5 6. exf6 dxc4 7. Qh5 O-O e2e4 e7e5 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5 e5f6 d5c4 d1h5 e8g8 rnbq1rk1/ppp2ppp/5P2/2b4Q/2pp4/2P5/PP3PPP/RNB1K1NR w KQ - +C23 Bishop's Opening: Stein Gambit 1. e4 e5 2. Bc4 Bc5 3. f4 e2e4 e7e5 f1c4 f8c5 f2f4 rnbqk1nr/pppp1ppp/8/2b1p3/2B1PP2/8/PPPP2PP/RNBQK1NR b KQkq - +C23 Bishop's Opening: Thorold Gambit 1. e4 e5 2. Bc4 b5 3. Bxb5 f5 e2e4 e7e5 f1c4 b7b5 c4b5 f7f5 rnbqkbnr/p1pp2pp/8/1B2pp2/4P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C23 Bishop's Opening: del Rio Variation 1. e4 e5 2. Bc4 Bc5 3. c3 Qg5 e2e4 e7e5 f1c4 f8c5 c2c3 d8g5 rnb1k1nr/pppp1ppp/8/2b1p1q1/2B1P3/2P5/PP1P1PPP/RNBQK1NR w KQkq - +C24 Bishop's Opening: Berlin Defense 1. e4 e5 2. Bc4 Nf6 e2e4 e7e5 f1c4 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq - +C24 Bishop's Opening: Berlin Defense, Greco Gambit 1. e4 e5 2. Bc4 Nf6 3. f4 e2e4 e7e5 f1c4 g8f6 f2f4 rnbqkb1r/pppp1ppp/5n2/4p3/2B1PP2/8/PPPP2PP/RNBQK1NR b KQkq - +C24 Bishop's Opening: Kitchener Folly 1. e4 e5 2. Bc4 Nf6 3. d3 Be7 4. Nf3 O-O e2e4 e7e5 f1c4 g8f6 d2d3 f8e7 g1f3 e8g8 rnbq1rk1/ppppbppp/5n2/4p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQ - +C24 Bishop's Opening: Krejcik Gambit 1. e4 e5 2. Bc4 Nf6 3. f3 Bc5 4. Ne2 Nc6 5. b4 e2e4 e7e5 f1c4 g8f6 f2f3 f8c5 g1e2 b8c6 b2b4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/1PB1P3/5P2/P1PPN1PP/RNBQK2R b KQkq - +C24 Bishop's Opening: Pachman Gambit 1. e4 e5 2. Bc4 Nf6 3. Ne2 Nxe4 4. Nec3 e2e4 e7e5 f1c4 g8f6 g1e2 f6e4 e2c3 rnbqkb1r/pppp1ppp/8/4p3/2B1n3/2N5/PPPP1PPP/RNBQK2R b KQkq - +C24 Bishop's Opening: Ponziani Gambit 1. e4 e5 2. Bc4 Nf6 3. d4 e2e4 e7e5 f1c4 g8f6 d2d4 rnbqkb1r/pppp1ppp/5n2/4p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq - +C24 Bishop's Opening: Urusov Gambit, Panov Variation 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 d5 5. exd5 Bb4+ 6. c3 Qe7+ e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 g1f3 d7d5 e4d5 f8b4 c2c3 d8e7 rnb1k2r/ppp1qppp/5n2/3P4/1bBp4/2P2N2/PP3PPP/RNBQK2R w KQkq - +C24 Bishop's Opening: Vienna Hybrid 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nc3 e2e4 e7e5 f1c4 g8f6 d2d3 b8c6 b1c3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2NP4/PPP2PPP/R1BQK1NR b KQkq - +C24 Bishop's Opening: Warsaw Gambit 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. c3 e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 c2c3 rnbqkb1r/pppp1ppp/5n2/8/2BpP3/2P5/PP3PPP/RNBQK1NR b KQkq - +C25 Vienna Game 1. e4 e5 2. Nc3 e2e4 e7e5 b1c3 rnbqkbnr/pppp1ppp/8/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - +C25 Vienna Game: Anderssen Defense 1. e4 e5 2. Nc3 Bc5 e2e4 e7e5 b1c3 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +C25 Vienna Game: Fyfe Gambit 1. e4 e5 2. Nc3 Nc6 3. d4 e2e4 e7e5 b1c3 b8c6 d2d4 r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +C25 Vienna Game: Giraffe Attack 1. e4 e5 2. Nc3 Bc5 3. Qg4 e2e4 e7e5 b1c3 f8c5 d1g4 rnbqk1nr/pppp1ppp/8/2b1p3/4P1Q1/2N5/PPPP1PPP/R1B1KBNR b KQkq - +C25 Vienna Game: Hamppe-Meitner Variation 1. e4 e5 2. Nc3 Bc5 3. Na4 e2e4 e7e5 b1c3 f8c5 c3a4 rnbqk1nr/pppp1ppp/8/2b1p3/N3P3/8/PPPP1PPP/R1BQKBNR b KQkq - +C25 Vienna Game: Hamppe-Muzio Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 r1bqkbnr/pppp1p1p/2n5/8/2B1Ppp1/2N2N2/PPPP2PP/R1BQ1RK1 b kq - +C25 Vienna Game: Hamppe-Muzio, Dubois Variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3 7. Qxf3 Ne5 8. Qxf4 Qf6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 c6e5 f3f4 d8f6 r1b1kbnr/pppp1p1p/5q2/4n3/2B1PQ2/2N5/PPPP2PP/R1B2RK1 w kq - +C25 Vienna Game: Max Lange Defense 1. e4 e5 2. Nc3 Nc6 e2e4 e7e5 b1c3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +C25 Vienna Game: Omaha Gambit 1. e4 e5 2. Nc3 d6 3. f4 e2e4 e7e5 b1c3 d7d6 f2f4 rnbqkbnr/ppp2ppp/3p4/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C25 Vienna Game: Paulsen Variation 1. e4 e5 2. Nc3 Nc6 3. g3 e2e4 e7e5 b1c3 b8c6 g2g3 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq - +C25 Vienna Game: Paulsen Variation 1. e4 e5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 Bc5 5. Nge2 d5 e2e4 e7e5 b1c3 b8c6 g2g3 g8f6 f1g2 f8c5 g1e2 d7d5 r1bqk2r/ppp2ppp/2n2n2/2bpp3/4P3/2N3P1/PPPPNPBP/R1BQK2R w KQkq - +C25 Vienna Game: Paulsen Variation, Mariotti Gambit 1. e4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 h5 5. Nf3 h4 e2e4 e7e5 b1c3 b8c6 g2g3 f8c5 f1g2 h7h5 g1f3 h5h4 r1bqk1nr/pppp1pp1/2n5/2b1p3/4P2p/2N2NP1/PPPP1PBP/R1BQK2R w KQkq - +C25 Vienna Game: Philidor Countergambit 1. e4 e5 2. Nc3 Nc6 3. d4 f5 e2e4 e7e5 b1c3 b8c6 d2d4 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +C25 Vienna Game: Pierce Gambit, Rushmere Attack 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 g4 6. Bc4 gxf3 7. O-O d5 8. exd5 Bg4 9. dxc6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 f1c4 g4f3 e1g1 d7d5 e4d5 c8g4 d5c6 r2qkbnr/ppp2p1p/2P5/8/2BP1pb1/2N2p2/PPP3PP/R1BQ1RK1 b kq - +C25 Vienna Game: Stanley Variation, Meitner-Mieses Gambit 1. e4 e5 2. Nc3 Nc6 3. Bc4 Bc5 4. Qg4 Qf6 5. Nd5 e2e4 e7e5 b1c3 b8c6 f1c4 f8c5 d1g4 d8f6 c3d5 r1b1k1nr/pppp1ppp/2n2q2/2bNp3/2B1P1Q1/8/PPPP1PPP/R1B1K1NR b KQkq - +C25 Vienna Game: Vienna Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 e2e4 e7e5 b1c3 b8c6 f2f4 r1bqkbnr/pppp1ppp/2n5/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C25 Vienna Game: Vienna Gambit, Cunningham Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 Be7 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 f8e7 r1bqk1nr/ppppbppp/2n5/8/4Pp2/2N2N2/PPPP2PP/R1BQKB1R w KQkq - +C25 Vienna Game: Vienna Gambit, Hamppe-Allgaier Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 r1bqkbnr/pppp1p1p/2n5/6N1/4PppP/2N5/PPPP2P1/R1BQKB1R b KQkq - +C25 Vienna Game: Vienna Gambit, Hamppe-Allgaier Gambit, Alapin Variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 d7d6 r1bqkbnr/ppp2p1p/2np4/6N1/4PppP/2N5/PPPP2P1/R1BQKB1R w KQkq - +C25 Vienna Game: Vienna Gambit, Hamppe-Allgaier Gambit, Thorold Variation 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Nc3 g5 5. h4 g4 6. Ng5 h6 7. Nxf7 Kxf7 8. d4 e2e4 e7e5 f2f4 e5f4 g1f3 b8c6 b1c3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d2d4 r1bq1bnr/pppp1k2/2n4p/8/3PPppP/2N5/PPP3P1/R1BQKB1R b KQ - +C25 Vienna Game: Vienna Gambit, Hamppe-Muzio Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 r1bqkbnr/pppp1p1p/2n5/8/2B1Pp2/2N2p2/PPPP2PP/R1BQ1RK1 w kq - +C25 Vienna Game: Vienna Gambit, Pierce Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 d2d4 r1bqkbnr/pppp1p1p/2n5/6p1/3PPp2/2N2N2/PPP3PP/R1BQKB1R b KQkq - +C25 Vienna Game: Vienna Gambit, Quelle Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 Bc5 4. fxe5 d6 e2e4 e7e5 b1c3 b8c6 f2f4 f8c5 f4e5 d7d6 r1bqk1nr/ppp2ppp/2np4/2b1P3/4P3/2N5/PPPP2PP/R1BQKBNR w KQkq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 r1bqkbnr/pppp1ppp/2n5/8/3PPp2/2N5/PPP3PP/R1BQKBNR b KQkq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Fraser-Minckwitz Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 b6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 b7b6 r1b1kbnr/p1pp1ppp/1pn5/8/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Knight Variation 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 r1bqkbnr/pppp1ppp/2n5/8/4Pp2/2N2N2/PPPP2PP/R1BQKB1R b KQkq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Main Line 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 r1b1kbnr/pppp1ppp/2n5/8/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR b kq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Paulsen Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d6 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 d7d6 r1b1kbnr/ppp2ppp/2np4/8/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Sörensen Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 g5 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 g7g5 r1b1kbnr/pppp1p1p/2n5/6p1/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq - +C25 Vienna Game: Vienna Gambit, Steinitz Gambit, Zukertort Defense 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d5 e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 d7d5 r1b1kbnr/ppp2ppp/2n5/3p4/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq - +C25 Vienna Game: Zhuravlev Countergambit 1. e4 e5 2. Nc3 Bb4 3. Qg4 Nf6 e2e4 e7e5 b1c3 f8b4 d1g4 g8f6 rnbqk2r/pppp1ppp/5n2/4p3/1b2P1Q1/2N5/PPPP1PPP/R1B1KBNR w KQkq - +C26 Bishop's Opening: Horwitz Gambit 1. e4 e5 2. Bc4 Nf6 3. Nc3 b5 e2e4 e7e5 f1c4 g8f6 b1c3 b7b5 rnbqkb1r/p1pp1ppp/5n2/1p2p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq - +C26 Bishop's Opening: Vienna Hybrid, Spielmann Attack 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 e2e4 e7e5 b1c3 g8f6 f1c4 f8c5 d2d3 rnbqk2r/pppp1ppp/5n2/2b1p3/2B1P3/2NP4/PPP2PPP/R1BQK1NR b KQkq - +C26 Vienna Game: Falkbeer Variation 1. e4 e5 2. Nc3 Nf6 e2e4 e7e5 b1c3 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - +C26 Vienna Game: Mengarini Variation 1. e4 e5 2. Nc3 Nf6 3. a3 e2e4 e7e5 b1c3 g8f6 a2a3 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/P1N5/1PPP1PPP/R1BQKBNR b KQkq - +C26 Vienna Game: Mieses Variation 1. e4 e5 2. Nc3 Nf6 3. g3 e2e4 e7e5 b1c3 g8f6 g2g3 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq - +C26 Vienna Game: Mieses Variation, Erben Gambit 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 c6 e2e4 e7e5 b1c3 g8f6 g2g3 d7d5 e4d5 c7c6 rnbqkb1r/pp3ppp/2p2n2/3Pp3/8/2N3P1/PPPP1P1P/R1BQKBNR w KQkq - +C26 Vienna Game: Paulsen Variation, Pollock Gambit 1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 Nc6 5. Nge2 d5 6. exd5 e2e4 e7e5 b1c3 g8f6 g2g3 f8c5 f1g2 b8c6 g1e2 d7d5 e4d5 r1bqk2r/ppp2ppp/2n2n2/2bPp3/8/2N3P1/PPPPNPBP/R1BQK2R b KQkq - +C26 Vienna Game: Stanley Variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 e2e4 e7e5 b1c3 g8f6 f1c4 rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR b KQkq - +C26 Vienna Game: Stanley Variation, Eifel Gambit 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. Nge2 b5 e2e4 e7e5 b1c3 g8f6 f1c4 f8c5 g1e2 b7b5 rnbqk2r/p1pp1ppp/5n2/1pb1p3/2B1P3/2N5/PPPPNPPP/R1BQK2R w KQkq - +C26 Vienna Game: Stanley Variation, Reversed Spanish 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bb4 e2e4 e7e5 b1c3 g8f6 f1c4 f8b4 rnbqk2r/pppp1ppp/5n2/4p3/1bB1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq - +C26 Vienna Game: Vienna Gambit 1. e4 e5 2. Nc3 Nf6 3. f4 e2e4 e7e5 b1c3 g8f6 f2f4 rnbqkb1r/pppp1ppp/5n2/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C27 Bishop's Opening: Boden-Kieseritzky Gambit 1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. Nc3 e2e4 e7e5 g1f3 g8f6 f1c4 f6e4 b1c3 rnbqkb1r/pppp1ppp/8/4p3/2B1n3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C27 Bishop's Opening: Boden-Kieseritzky Gambit, Lichtenhein Defense 1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. Nc3 d5 e2e4 e7e5 g1f3 g8f6 f1c4 f6e4 b1c3 d7d5 rnbqkb1r/ppp2ppp/8/3pp3/2B1n3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C27 Vienna Game: Adams' Gambit 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. d4 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 b8c6 d2d4 r1bqkb1r/pppp1ppp/2nn4/4p2Q/3P4/1BN5/PPP2PPP/R1B1K1NR b KQkq - +C27 Vienna Game: Frankenstein-Dracula Variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 rnbqkb1r/pppp1ppp/8/4p3/2B1n3/2N5/PPPP1PPP/R1BQK1NR w KQkq - +C27 Vienna Game: Stanley Variation, Alekhine Variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 6. Nf3 Nc6 7. Nxe5 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 f8e7 g1f3 b8c6 f3e5 r1bqk2r/ppppbppp/2nn4/4N2Q/8/1BN5/PPPP1PPP/R1B1K2R b KQkq - +C27 Vienna Game: Stanley Variation, Frankenstein-Dracula Variation 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qe7 9. Nxc7+ Kd8 10. Nxa8 b6 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 b8c6 c3b5 g7g6 h5f3 f7f5 f3d5 d8e7 b5c7 e8d8 c7a8 b7b6 N1bk1b1r/p2pq2p/1pnn2p1/3Qpp2/8/1B6/PPPP1PPP/R1B1K1NR w KQ - +C27 Vienna Game: Stanley Variation, Monster Declined 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 f8e7 rnbqk2r/ppppbppp/3n4/4p2Q/8/1BN5/PPPP1PPP/R1B1K1NR w KQkq - +C28 Bishop's Opening: Vienna Hybrid, Hromádka Variation 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. d3 Bb4 5. Ne2 e2e4 e7e5 b1c3 b8c6 f1c4 g8f6 d2d3 f8b4 g1e2 r1bqk2r/pppp1ppp/2n2n2/4p3/1bB1P3/2NP4/PPP1NPPP/R1BQK2R b KQkq - +C28 Vienna Game: Stanley Variation, Bronstein Gambit 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. f4 Nxe4 5. Nf3 e2e4 e7e5 b1c3 b8c6 f1c4 g8f6 f2f4 f6e4 g1f3 r1bqkb1r/pppp1ppp/2n5/4p3/2B1nP2/2N2N2/PPPP2PP/R1BQK2R b KQkq - +C28 Vienna Game: Stanley Variation, Three Knights Variation 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 e2e4 e7e5 b1c3 b8c6 f1c4 g8f6 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq - +C29 Vienna Game: Heyde Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5 6. d4 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3 f7f5 d2d4 rnbqkb1r/ppp3pp/8/3pPp2/3Pn3/2N2Q2/PPP3PP/R1B1KBNR b KQkq - +C29 Vienna Game: Vienna Gambit, Bardeleben Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3 f7f5 rnbqkb1r/ppp3pp/8/3pPp2/4n3/2N2Q2/PPPP2PP/R1B1KBNR w KQkq f6 +C29 Vienna Game: Vienna Gambit, Breyer Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 g1f3 f8e7 rnbqk2r/ppp1bppp/8/3pP3/4n3/2N2N2/PPPP2PP/R1BQKB1R w KQkq - +C29 Vienna Game: Vienna Gambit, Kaufmann Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Bg4 6. Qe2 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 g1f3 c8g4 d1e2 rn1qkb1r/ppp2ppp/8/3pP3/4n1b1/2N2N2/PPPPQ1PP/R1B1KB1R b KQkq - +C29 Vienna Game: Vienna Gambit, Main Line 1. e4 e5 2. Nc3 Nf6 3. f4 d5 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 rnbqkb1r/ppp2ppp/5n2/3pp3/4PP2/2N5/PPPP2PP/R1BQKBNR w KQkq - +C29 Vienna Game: Vienna Gambit, Modern Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d2d3 rnbqkb1r/ppp2ppp/8/3pP3/4n3/2NP4/PPP3PP/R1BQKBNR b KQkq - +C29 Vienna Game: Vienna Gambit, Paulsen Attack 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3 rnbqkb1r/ppp2ppp/8/3pP3/4n3/2N2Q2/PPPP2PP/R1B1KBNR b KQkq - +C29 Vienna Game: Vienna Gambit, Steinitz Variation 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. d3 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 d2d3 rnbqkb1r/ppp2ppp/5n2/3pp3/4PP2/2NP4/PPP3PP/R1BQKBNR b KQkq - +C29 Vienna Game: Vienna Gambit, Wurzburger Trap 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Qh4+ 6. g3 Nxg3 7. Nf3 Qh5 8. Nxd5 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d2d3 d8h4 g2g3 e4g3 g1f3 h4h5 c3d5 rnb1kb1r/ppp2ppp/8/3NP2q/8/3P1Nn1/PPP4P/R1BQKB1R b KQkq - +C30 King's Gambit 1. e4 e5 2. f4 e2e4 e7e5 f2f4 rnbqkbnr/pppp1ppp/8/4p3/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - +C30 King's Gambit Declined: Classical Variation 1. e4 e5 2. f4 Bc5 e2e4 e7e5 f2f4 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Classical Variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 rnbqk1nr/ppp2ppp/3p4/2b1p3/4PP2/2P2N2/PP1P2PP/RNBQKB1R b KQkq - +C30 King's Gambit Declined: Classical Variation, Euwe Attack 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Bg4 5. fxe5 dxe5 6. Qa4+ e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 c8g4 f4e5 d6e5 d1a4 rn1qk1nr/ppp2ppp/8/2b1p3/Q3P1b1/2P2N2/PP1P2PP/RNB1KB1R b KQkq - +C30 King's Gambit Declined: Classical Variation, Rotlewi Countergambit 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. b4 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 b2b4 rnbqk1nr/ppp2ppp/3p4/2b1p3/1P2PP2/5N2/P1PP2PP/RNBQKB1R b KQkq - +C30 King's Gambit Declined: Classical Variation, Rubinstein Countergambit 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 f7f5 rnbqk1nr/ppp3pp/3p4/2b1pp2/4PP2/2P2N2/PP1P2PP/RNBQKB1R w KQkq - +C30 King's Gambit Declined: Classical, Hanham Variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nd7 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 b1c3 b8d7 r1bqk1nr/pppn1ppp/3p4/2b1p3/4PP2/2N2N2/PPPP2PP/R1BQKB1R w KQkq - +C30 King's Gambit Declined: Classical, Réti Variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5 5. fxe5 dxe5 6. d4 exd4 7. Bc4 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 f7f5 f4e5 d6e5 d2d4 e5d4 f1c4 rnbqk1nr/ppp3pp/8/2b2p2/2BpP3/2P2N2/PP4PP/RNBQK2R b KQkq - +C30 King's Gambit Declined: Classical, Soldatenkov Variation 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. fxe5 e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 f4e5 rnbqk1nr/ppp2ppp/3p4/2b1P3/4P3/5N2/PPPP2PP/RNBQKB1R b KQkq - +C30 King's Gambit Declined: Classical, Svenonius Variation 1. e4 e5 2. Bc4 Nc6 3. Nc3 Nf6 4. d3 Bc5 5. f4 d6 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 exf4 e2e4 e7e5 f1c4 b8c6 b1c3 g8f6 d2d3 f8c5 f2f4 d7d6 g1f3 c8g4 h2h3 g4f3 d1f3 e5f4 r2qk2r/ppp2ppp/2np1n2/2b5/2B1Pp2/2NP1Q1P/PPP3P1/R1B1K2R w KQkq - +C30 King's Gambit Declined: Hobbs-Zilbermints Gambit 1. e4 e5 2. f4 Nc6 3. Nf3 g5 4. fxg5 h6 e2e4 e7e5 f2f4 b8c6 g1f3 g7g5 f4g5 h7h6 r1bqkbnr/pppp1p2/2n4p/4p1P1/4P3/5N2/PPPP2PP/RNBQKB1R w KQkq - +C30 King's Gambit Declined: Keene Defense 1. e4 e5 2. f4 Qh4+ 3. g3 Qe7 e2e4 e7e5 f2f4 d8h4 g2g3 h4e7 rnb1kbnr/ppppqppp/8/4p3/4PP2/6P1/PPPP3P/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Keene's Defense 1. e4 e5 2. f4 Qh4+ e2e4 e7e5 f2f4 d8h4 rnb1kbnr/pppp1ppp/8/4p3/4PP1q/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Keene's Defense 1. e4 e5 2. f4 Qh4+ 3. g3 e2e4 e7e5 f2f4 d8h4 g2g3 rnb1kbnr/pppp1ppp/8/4p3/4PP1q/6P1/PPPP3P/RNBQKBNR b KQkq - +C30 King's Gambit Declined: Mafia Defense 1. e4 c5 2. f4 e5 e2e4 c7c5 f2f4 e7e5 rnbqkbnr/pp1p1ppp/8/2p1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Miles Defense 1. e4 e5 2. f4 Nc6 3. Nf3 f5 e2e4 e7e5 f2f4 b8c6 g1f3 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/4PP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C30 King's Gambit Declined: Norwalde Variation 1. e4 e5 2. f4 Qf6 e2e4 e7e5 f2f4 d8f6 rnb1kbnr/pppp1ppp/5q2/4p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Norwalde Variation, Bücker Gambit 1. e4 e5 2. f4 Qf6 3. Nc3 Qxf4 4. Nf3 Bb4 5. Bc4 e2e4 e7e5 f2f4 d8f6 b1c3 f6f4 g1f3 f8b4 f1c4 rnb1k1nr/pppp1ppp/8/4p3/1bB1Pq2/2N2N2/PPPP2PP/R1BQK2R b KQkq - +C30 King's Gambit Declined: Norwalde Variation, Schubert Variation 1. e4 e5 2. f4 Qf6 3. Nc3 Qxf4 4. d4 e2e4 e7e5 f2f4 d8f6 b1c3 f6f4 d2d4 rnb1kbnr/pppp1ppp/8/4p3/3PPq2/2N5/PPP3PP/R1BQKBNR b KQkq - +C30 King's Gambit Declined: Panteldakis Countergambit 1. e4 e5 2. f4 f5 e2e4 e7e5 f2f4 f7f5 rnbqkbnr/pppp2pp/8/4pp2/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Panteldakis Countergambit, Greco Variation 1. e4 e5 2. f4 f5 3. exf5 Qh4+ e2e4 e7e5 f2f4 f7f5 e4f5 d8h4 rnb1kbnr/pppp2pp/8/4pP2/5P1q/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Panteldakis Countergambit, Pawn Sacrifice Line 1. e4 e5 2. f4 f5 3. exf5 exf4 4. Qh5+ g6 5. fxg6 Qe7+ 6. Kd1 e2e4 e7e5 f2f4 f7f5 e4f5 e5f4 d1h5 g7g6 f5g6 d8e7 e1d1 rnb1kbnr/ppppq2p/6P1/7Q/5p2/8/PPPP2PP/RNBK1BNR b kq - +C30 King's Gambit Declined: Panteldakis Countergambit, Schiller's Defense 1. e4 e5 2. f4 f5 3. exf5 Bc5 e2e4 e7e5 f2f4 f7f5 e4f5 f8c5 rnbqk1nr/pppp2pp/8/2b1pP2/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Panteldakis Countergambit, Shirazi Line 1. e4 e5 2. f4 f5 3. exf5 exf4 4. Qh5+ Ke7 e2e4 e7e5 f2f4 f7f5 e4f5 e5f4 d1h5 e8e7 rnbq1bnr/ppppk1pp/8/5P1Q/5p2/8/PPPP2PP/RNB1KBNR w KQ - +C30 King's Gambit Declined: Panteldakis Countergambit, Symmetrical Variation 1. e4 e5 2. f4 f5 3. exf5 exf4 4. Nf3 d5 5. d4 Bd6 6. Bd3 e2e4 e7e5 f2f4 f7f5 e4f5 e5f4 g1f3 d7d5 d2d4 f8d6 f1d3 rnbqk1nr/ppp3pp/3b4/3p1P2/3P1p2/3B1N2/PPP3PP/RNBQK2R b KQkq - +C30 King's Gambit Declined: Petrov's Defense 1. e4 e5 2. f4 Nf6 e2e4 e7e5 f2f4 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Queen's Knight Defense 1. e4 e5 2. f4 Nc6 e2e4 e7e5 f2f4 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Senechaud Countergambit 1. e4 e5 2. f4 Bc5 3. Nf3 g5 e2e4 e7e5 f2f4 f8c5 g1f3 g7g5 rnbqk1nr/pppp1p1p/8/2b1p1p1/4PP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C30 King's Gambit Declined: Soller-Zilbermints Gambit 1. e4 e5 2. f4 f6 3. fxe5 Nc6 e2e4 e7e5 f2f4 f7f6 f4e5 b8c6 r1bqkbnr/pppp2pp/2n2p2/4P3/4P3/8/PPPP2PP/RNBQKBNR w KQkq - +C30 King's Gambit Declined: Zilbermints Double Gambit 1. e4 e5 2. f4 Nc6 3. Nf3 g5 e2e4 e7e5 f2f4 b8c6 g1f3 g7g5 r1bqkbnr/pppp1p1p/2n5/4p1p1/4PP2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C30 King's Gambit: Zilbermints Double Countergambit 1. e4 e5 2. f4 g5 e2e4 e7e5 f2f4 g7g5 rnbqkbnr/pppp1p1p/8/4p1p1/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit 1. e4 e5 2. f4 d5 e2e4 e7e5 f2f4 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit Accepted 1. e4 e5 2. f4 d5 3. exd5 e2e4 e7e5 f2f4 d7d5 e4d5 rnbqkbnr/ppp2ppp/8/3Pp3/5P2/8/PPPP2PP/RNBQKBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Anderssen Attack 1. e4 e5 2. f4 d5 3. exd5 e4 4. Bb5+ e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 f1b5 rnbqkbnr/ppp2ppp/8/1B1P4/4pP2/8/PPPP2PP/RNBQK1NR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Blackburne Attack 1. e4 e5 2. f4 d5 3. Nf3 e2e4 e7e5 f2f4 d7d5 g1f3 rnbqkbnr/ppp2ppp/8/3pp3/4PP2/5N2/PPPP2PP/RNBQKB1R b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 rnbqkbnr/ppp2ppp/8/3P4/4pP2/3P4/PPP3PP/RNBQKBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Morphy Defense 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. exd5 e4 5. d3 Bb4 6. Bd2 e3 e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 e4d5 e5e4 d2d3 f8b4 c1d2 e4e3 rnbqk2r/ppp2ppp/5n2/3P4/1b3P2/2NPp3/PPPB2PP/R2QKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Hinrichsen Gambit 1. e4 e5 2. f4 d5 3. d4 e2e4 e7e5 f2f4 d7d5 d2d4 rnbqkbnr/ppp2ppp/8/3pp3/3PPP2/8/PPP3PP/RNBQKBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Miles Gambit 1. e4 e5 2. f4 d5 3. exd5 Bc5 e2e4 e7e5 f2f4 d7d5 e4d5 f8c5 rnbqk1nr/ppp2ppp/8/2bPp3/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Milner-Barry Variation 1. e4 e5 2. f4 d5 3. Nc3 e2e4 e7e5 f2f4 d7d5 b1c3 rnbqkbnr/ppp2ppp/8/3pp3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Modern Transfer 1. e4 e5 2. f4 d5 3. exd5 exf4 e2e4 e7e5 f2f4 d7d5 e4d5 e5f4 rnbqkbnr/ppp2ppp/8/3P4/5p2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Nimzowitsch-Marshall Countergambit 1. e4 e5 2. f4 d5 3. exd5 c6 e2e4 e7e5 f2f4 d7d5 e4d5 c7c6 rnbqkbnr/pp3ppp/2p5/3Pp3/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Pickler Gambit 1. e4 e5 2. f4 d5 3. exd5 c6 4. dxc6 Bc5 e2e4 e7e5 f2f4 d7d5 e4d5 c7c6 d5c6 f8c5 rnbqk1nr/pp3ppp/2P5/2b1p3/5P2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Rubinstein Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. Qe2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 b1c3 g8f6 d1e2 rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/2N5/PPPPQ1PP/R1B1KBNR b KQkq - +C31 King's Gambit Declined: Falkbeer Countergambit, Staunton Line 1. e4 e5 2. f4 d5 3. exd5 e4 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 rnbqkbnr/ppp2ppp/8/3P4/4pP2/8/PPPP2PP/RNBQKBNR w KQkq - +C31 Van Geet Opening: Grünfeld Defense, Steiner Gambit 1. e4 e5 2. f4 d5 3. Nc3 dxe4 4. Nxe4 e2e4 e7e5 f2f4 d7d5 b1c3 d5e4 c3e4 rnbqkbnr/ppp2ppp/8/4p3/4NP2/8/PPPP2PP/R1BQKBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Alapin Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf2+ 8. Kd1 Qxd5+ 9. Nfd2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c5f2 e1d1 d8d5 f3d2 rnb1k2r/ppp2ppp/8/3q4/4nP2/8/PPPNQbPP/RNBK1B1R b kq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Qe2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 d1e2 rnbqkb1r/ppp2ppp/8/3P4/4nP2/8/PPP1Q1PP/RNB1KBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit Accepted 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 rnbqkb1r/ppp2ppp/5n2/3P4/4PP2/8/PPP3PP/RNBQKBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Keres Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nd2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 b1d2 rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/3P4/PPPN2PP/R1BQKBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Main Line 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c8f5 rn1qk2r/ppp2ppp/8/2bP1b2/4nP2/5N2/PPP1Q1PP/RNB1KB1R w KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Old Line 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Qe2 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d1e2 rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/3P4/PPP1Q1PP/RNB1KBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Charousek Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Qe2 Qxd5 7. Nd2 f5 8. g4 e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 d1e2 d8d5 b1d2 f7f5 g2g4 rnb1kb1r/ppp3pp/8/3q1p2/4nPP1/8/PPPNQ2P/R1B1KBNR b KQkq - +C32 King's Gambit Declined: Falkbeer Countergambit, Tarrasch Variation 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5 8. g4 O-O e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c8f5 g2g4 e8g8 rn1q1rk1/ppp2ppp/8/2bP1b2/4nPP1/5N2/PPP1Q2P/RNB1KB1R w KQ - +C33 King's Gambit Accepted 1. e4 e5 2. f4 exf4 e2e4 e7e5 f2f4 e5f4 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPP2PP/RNBQKBNR w KQkq - +C33 King's Gambit Accepted: Basman Gambit 1. e4 e5 2. f4 exf4 3. Qe2 e2e4 e7e5 f2f4 e5f4 d1e2 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPPQ1PP/RNB1KBNR b KQkq - +C33 King's Gambit Accepted: Bishop's Gambit 1. e4 e5 2. f4 exf4 3. Bc4 e2e4 e7e5 f2f4 e5f4 f1c4 rnbqkbnr/pppp1ppp/8/8/2B1Pp2/8/PPPP2PP/RNBQK1NR b KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Anderssen Defense 1. e4 e5 2. f4 exf4 3. Bc4 g5 e2e4 e7e5 f2f4 e5f4 f1c4 g7g5 rnbqkbnr/pppp1p1p/8/6p1/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Anderssen Variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 c6 e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 c7c6 rnbqkbnr/pp3ppp/2p5/3B4/4Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Bledow Countergambit 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Nf6 e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 g8f6 rnbqkb1r/ppp2ppp/5n2/3B4/4Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Bledow Variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 rnbqkbnr/ppp2ppp/8/3p4/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Boden Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Nc6 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 b8c6 r1b1kbnr/pppp1ppp/2n5/8/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Bogoljubov Defense 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 c6 e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3 c7c6 rnbqkb1r/pp1p1ppp/2p2n2/8/2B1Pp2/2N5/PPPP2PP/R1BQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Bogoljubov Variation 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3 rnbqkb1r/pppp1ppp/5n2/8/2B1Pp2/2N5/PPPP2PP/R1BQK1NR b KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Boren-Svenonius Variation 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Qh4+ 5. Kf1 Bd6 e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 d8h4 e1f1 f8d6 rnb1k1nr/ppp2ppp/3b4/3B4/4Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Bryan Countergambit 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 b5 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 b7b5 rnb1kbnr/p1pp1ppp/8/1p6/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Chigorin's Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 d5 5. Bxd5 g5 6. g3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 d7d5 c4d5 g7g5 g2g3 rnb1kbnr/ppp2p1p/8/3B2p1/4Pp1q/6P1/PPPP3P/RNBQ1KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Classical Defense 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Ne7 5. Nc3 g5 6. d4 Bg7 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g8e7 b1c3 g7g5 d2d4 f8g7 rnb1k2r/ppppnpbp/8/6p1/2BPPp1q/2N5/PPP3PP/R1BQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Classical Defense, Cozio Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Qf3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 d1f3 rnb1kbnr/pppp1p1p/8/6p1/2B1Pp1q/5Q2/PPPP2PP/RNB2KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Cozio Defense 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 rnbqkb1r/pppp1ppp/5n2/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Cozio Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 d6 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 d7d6 rnb1kbnr/ppp2ppp/3p4/8/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, First Jaenisch Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Nf6 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g8f6 rnb1kb1r/pppp1ppp/5n2/8/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Fraser Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. g3 fxg3 7. Qf3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 g2g3 f4g3 d1f3 rnb1k1nr/pppp1pbp/8/6p1/2B1P2q/2N2Qp1/PPPP3P/R1B2KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Gianutio Gambit 1. e4 e5 2. f4 exf4 3. Bc4 f5 e2e4 e7e5 f2f4 e5f4 f1c4 f7f5 rnbqkbnr/pppp2pp/8/5p2/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Greco Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Bc5 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 f8c5 rnb1k1nr/pppp1ppp/8/2b5/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Grimm Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 d6 7. e5 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 d2d4 d7d6 e4e5 rnb1k1nr/ppp2pbp/3p4/4P1p1/2BP1p1q/2N5/PPP3PP/R1BQ1KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Kieseritzky Gambit 1. e4 e5 2. f4 exf4 3. Bc4 b5 e2e4 e7e5 f2f4 e5f4 f1c4 b7b5 rnbqkbnr/p1pp1ppp/8/1p6/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Lopez Defense 1. e4 e5 2. f4 exf4 3. Bc4 c6 e2e4 e7e5 f2f4 e5f4 f1c4 c7c6 rnbqkbnr/pp1p1ppp/2p5/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Lopez Variation 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 rnb1kbnr/pppp1p1p/8/6p1/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - +C33 King's Gambit Accepted: Bishop's Gambit, Maurian Defense 1. e4 e5 2. f4 exf4 3. Bc4 Nc6 e2e4 e7e5 f2f4 e5f4 f1c4 b8c6 r1bqkbnr/pppp1ppp/2n5/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, McDonnell Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 Ne7 7. g3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 d2d4 g8e7 g2g3 rnb1k2r/ppppnpbp/8/6p1/2BPPp1q/2N3P1/PPP4P/R1BQ1KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, McDonnell Attack 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. g3 e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 g2g3 rnb1k1nr/pppp1pbp/8/6p1/2B1Pp1q/2N3P1/PPPP3P/R1BQ1KNR b kq - +C33 King's Gambit Accepted: Bishop's Gambit, Paulsen Attack 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 Bb4 5. e5 e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3 f8b4 e4e5 rnbqk2r/pppp1ppp/5n2/4P3/1bB2p2/2N5/PPPP2PP/R1BQK1NR b KQkq - +C33 King's Gambit Accepted: Bishop's Gambit, Steinitz Defense 1. e4 e5 2. f4 exf4 3. Bc4 Ne7 e2e4 e7e5 f2f4 e5f4 f1c4 g8e7 rnbqkb1r/ppppnppp/8/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Breyer Gambit 1. e4 e5 2. f4 exf4 3. Qf3 e2e4 e7e5 f2f4 e5f4 d1f3 rnbqkbnr/pppp1ppp/8/8/4Pp2/5Q2/PPPP2PP/RNB1KBNR b KQkq - +C33 King's Gambit Accepted: Carrera Gambit 1. e4 e5 2. f4 exf4 3. Qh5 e2e4 e7e5 f2f4 e5f4 d1h5 rnbqkbnr/pppp1ppp/8/7Q/4Pp2/8/PPPP2PP/RNB1KBNR b KQkq - +C33 King's Gambit Accepted: Dodo Variation 1. e4 e5 2. f4 exf4 3. Qg4 e2e4 e7e5 f2f4 e5f4 d1g4 rnbqkbnr/pppp1ppp/8/8/4PpQ1/8/PPPP2PP/RNB1KBNR b KQkq - +C33 King's Gambit Accepted: Eisenberg Variation 1. e4 e5 2. f4 exf4 3. Nh3 e2e4 e7e5 f2f4 e5f4 g1h3 rnbqkbnr/pppp1ppp/8/8/4Pp2/7N/PPPP2PP/RNBQKB1R b KQkq - +C33 King's Gambit Accepted: Gaga Gambit 1. e4 e5 2. f4 exf4 3. g3 e2e4 e7e5 f2f4 e5f4 g2g3 rnbqkbnr/pppp1ppp/8/8/4Pp2/6P1/PPPP3P/RNBQKBNR b KQkq - +C33 King's Gambit Accepted: Lopez-Gianutio Countergambit, Hein Variation 1. e4 e5 2. f4 exf4 3. Bc4 f5 4. Qe2 Qh4+ 5. Kd1 fxe4 6. Nc3 Kd8 e2e4 e7e5 f2f4 e5f4 f1c4 f7f5 d1e2 d8h4 e1d1 f5e4 b1c3 e8d8 rnbk1bnr/pppp2pp/8/8/2B1pp1q/2N5/PPPPQ1PP/R1BK2NR w - - +C33 King's Gambit Accepted: Orsini Gambit 1. e4 e5 2. f4 exf4 3. b3 e2e4 e7e5 f2f4 e5f4 b2b3 rnbqkbnr/pppp1ppp/8/8/4Pp2/1P6/P1PP2PP/RNBQKBNR b KQkq - +C33 King's Gambit Accepted: Paris Gambit 1. e4 e5 2. f4 exf4 3. Ne2 e2e4 e7e5 f2f4 e5f4 g1e2 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPPN1PP/RNBQKB1R b KQkq - +C33 King's Gambit Accepted: Polerio Gambit 1. e4 e5 2. f4 exf4 3. d4 e2e4 e7e5 f2f4 e5f4 d2d4 rnbqkbnr/pppp1ppp/8/8/3PPp2/8/PPP3PP/RNBQKBNR b KQkq - +C33 King's Gambit Accepted: Schurig Gambit 1. e4 e5 2. f4 exf4 3. Bb5 e2e4 e7e5 f2f4 e5f4 f1b5 rnbqkbnr/pppp1ppp/8/1B6/4Pp2/8/PPPP2PP/RNBQK1NR b KQkq - +C33 King's Gambit Accepted: Schurig Gambit 1. e4 e5 2. f4 exf4 3. Bd3 e2e4 e7e5 f2f4 e5f4 f1d3 rnbqkbnr/pppp1ppp/8/8/4Pp2/3B4/PPPP2PP/RNBQK1NR b KQkq - +C33 King's Gambit Accepted: Stamma Gambit 1. e4 e5 2. f4 exf4 3. h4 e2e4 e7e5 f2f4 e5f4 h2h4 rnbqkbnr/pppp1ppp/8/8/4Pp1P/8/PPPP2P1/RNBQKBNR b KQkq - +C33 King's Gambit Accepted: Tartakower Gambit 1. e4 e5 2. f4 exf4 3. Be2 e2e4 e7e5 f2f4 e5f4 f1e2 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPPB1PP/RNBQK1NR b KQkq - +C33 King's Gambit Accepted: Tartakower Gambit, Weiss Defense 1. e4 e5 2. f4 exf4 3. Be2 f5 4. exf5 d6 e2e4 e7e5 f2f4 e5f4 f1e2 f7f5 e4f5 d7d6 rnbqkbnr/ppp3pp/3p4/5P2/5p2/8/PPPPB1PP/RNBQK1NR w KQkq - +C33 King's Gambit Accepted: Tumbleweed 1. e4 e5 2. f4 exf4 3. Kf2 e2e4 e7e5 f2f4 e5f4 e1f2 rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPP1KPP/RNBQ1BNR b kq - +C33 Van Geet Opening: Nowokunski Gambit 1. e4 e5 2. f4 exf4 3. Nc3 e2e4 e7e5 f2f4 e5f4 b1c3 rnbqkbnr/pppp1ppp/8/8/4Pp2/2N5/PPPP2PP/R1BQKBNR b KQkq - +C34 King's Gambit Accepted: Becker Defense 1. e4 e5 2. f4 exf4 3. Nf3 h6 e2e4 e7e5 f2f4 e5f4 g1f3 h7h6 rnbqkbnr/pppp1pp1/7p/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Bonsch-Osmolovsky Variation 1. e4 e5 2. f4 exf4 3. Nf3 Ne7 e2e4 e7e5 f2f4 e5f4 g1f3 g8e7 rnbqkb1r/ppppnppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Fischer Defense 1. e4 e5 2. f4 exf4 3. Nf3 d6 e2e4 e7e5 f2f4 e5f4 g1f3 d7d6 rnbqkbnr/ppp2ppp/3p4/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Fischer Defense, Schulder Gambit 1. e4 e5 2. f4 exf4 3. Nf3 d6 4. b4 e2e4 e7e5 f2f4 e5f4 g1f3 d7d6 b2b4 rnbqkbnr/ppp2ppp/3p4/8/1P2Pp2/5N2/P1PP2PP/RNBQKB1R b KQkq - +C34 King's Gambit Accepted: Fischer Defense, Spanish Variation 1. e4 e5 2. f4 exf4 3. Nf3 d6 4. d4 Nf6 5. Bd3 e2e4 e7e5 f2f4 e5f4 g1f3 d7d6 d2d4 g8f6 f1d3 rnbqkb1r/ppp2ppp/3p1n2/8/3PPp2/3B1N2/PPP3PP/RNBQK2R b KQkq - +C34 King's Gambit Accepted: Gianutio Countergambit 1. e4 e5 2. f4 exf4 3. Nf3 f5 e2e4 e7e5 f2f4 e5f4 g1f3 f7f5 rnbqkbnr/pppp2pp/8/5p2/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Greco Gambit 1. e4 e5 2. f4 exf4 3. Nf3 d6 4. Bc4 h6 5. d4 g5 6. h4 Bg7 e2e4 e7e5 f2f4 e5f4 g1f3 d7d6 f1c4 h7h6 d2d4 g7g5 h2h4 f8g7 rnbqk1nr/ppp2pb1/3p3p/6p1/2BPPp1P/5N2/PPP3P1/RNBQK2R w KQkq - +C34 King's Gambit Accepted: King Knight's Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 rnbqkbnr/pppp1p1p/8/6p1/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: King's Knight Gambit 1. e4 e5 2. f4 exf4 3. Nf3 e2e4 e7e5 f2f4 e5f4 g1f3 rnbqkbnr/pppp1ppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R b KQkq - +C34 King's Gambit Accepted: MacLeod Defense 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 e2e4 e7e5 f2f4 e5f4 g1f3 b8c6 r1bqkbnr/pppp1ppp/2n5/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Schallopp Defense 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 g8f6 rnbqkb1r/pppp1ppp/5n2/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C34 King's Gambit Accepted: Schallopp Defense, Tashkent Attack 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. g4 e2e4 e7e5 f2f4 e5f4 g1f3 g8f6 e4e5 f6h5 g2g4 rnbqkb1r/pppp1ppp/8/4P2n/5pP1/5N2/PPPP3P/RNBQKB1R b KQkq g3 +C35 King's Gambit Accepted: Cunningham Defense 1. e4 e5 2. f4 exf4 3. Nf3 Be7 e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 rnbqk1nr/ppppbppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C35 King's Gambit Accepted: Cunningham Defense, Bertin Gambit 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 e7h4 g2g3 rnbqk1nr/pppp1ppp/8/8/2B1Pp1b/5NP1/PPPP3P/RNBQK2R b KQkq - +C35 King's Gambit Accepted: Cunningham Defense, Bertin Gambit 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 fxg3 6. O-O gxh2+ 7. Kh1 e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 e7h4 g2g3 f4g3 e1g1 g3h2 g1h1 rnbqk1nr/pppp1ppp/8/8/2B1P2b/5N2/PPPP3p/RNBQ1R1K b kq - +C35 King's Gambit Accepted: Cunningham Defense, McCormick Defense 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 g8f6 rnbqk2r/ppppbppp/5n2/8/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq - +C36 King's Gambit Accepted: Abbazia Defense 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 e4d5 g8f6 rnbqkb1r/ppp2ppp/5n2/3P4/5p2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C36 King's Gambit Accepted: Abbazia Defense, Main Line 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bb5+ c6 6. dxc6 bxc6 7. Bc4 Nd5 e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 e4d5 g8f6 f1b5 c7c6 d5c6 b7c6 b5c4 f6d5 rnbqkb1r/p4ppp/2p5/3n4/2B2p2/5N2/PPPP2PP/RNBQK2R w KQkq - +C36 King's Gambit Accepted: Modern Defense 1. e4 e5 2. f4 exf4 3. Nf3 d5 e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 rnbqkbnr/ppp2ppp/8/3p4/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - +C36 King's Gambit Accepted: Modern Defense 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 e4d5 rnbqkbnr/ppp2ppp/8/3P4/5p2/5N2/PPPP2PP/RNBQKB1R b KQkq - +C37 King's Gambit Accepted: Australian Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. h4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 h2h4 rnbqkbnr/pppp1p1p/8/8/2B1PppP/5N2/PPPP2P1/RNBQK2R b KQkq h3 +C37 King's Gambit Accepted: Blachly Gambit 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Bc4 g5 e2e4 e7e5 f2f4 e5f4 g1f3 b8c6 f1c4 g7g5 r1bqkbnr/pppp1p1p/2n5/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq - +C37 King's Gambit Accepted: Double Muzio Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. Bxf7+ e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 e4e5 f6e5 c4f7 rnb1kbnr/pppp1B1p/8/4q3/5p2/5Q2/PPPP2PP/RNB2RK1 b kq - +C37 King's Gambit Accepted: Double Muzio Gambit, Baldwin Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. Nc3 Qd4+ 8. Kh1 Qxc4 9. Nd5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 b1c3 f6d4 g1h1 d4c4 c3d5 rnb1kbnr/pppp1p1p/8/3N4/2q1Pp2/5Q2/PPPP2PP/R1B2R1K b kq - +C37 King's Gambit Accepted: Double Muzio Gambit, Bello Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 b1c3 rnb1kbnr/pppp1p1p/5q2/8/2B1Pp2/2N2Q2/PPPP2PP/R1B2RK1 b kq - +C37 King's Gambit Accepted: Double Muzio Gambit, Paulsen Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. d3 Bh6 9. Nc3 Ne7 10. Bd2 Nbc6 11. Rae1 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 e4e5 f6e5 d2d3 f8h6 b1c3 g8e7 c1d2 b8c6 a1e1 r1b1k2r/ppppnp1p/2n4b/4q3/2B2p2/2NP1Q2/PPPB2PP/4RRK1 b kq - +C37 King's Gambit Accepted: Double Muzio Gambit, Young Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. Bxf7+ Kxf7 8. d4 Qxd4+ 9. Be3 Qf6 10. Nc3 fxe3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 c4f7 e8f7 d2d4 f6d4 c1e3 d4f6 b1c3 f4e3 rnb2bnr/pppp1k1p/5q2/8/4P3/2N1pQ2/PPP3PP/R4RK1 w - - +C37 King's Gambit Accepted: Ghulam-Kassim Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 d2d4 rnbqkbnr/pppp1p1p/8/8/2BPPpp1/5N2/PPP3PP/RNBQK2R b KQkq - +C37 King's Gambit Accepted: Ghulam-Kassim Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4 gxf3 6. Qxf3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 d2d4 g4f3 d1f3 rnbqkbnr/pppp1p1p/8/8/2BPPp2/5Q2/PPP3PP/RNB1K2R b KQkq - +C37 King's Gambit Accepted: King's Knight Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 rnbqkbnr/pppp1p1p/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R b KQkq - +C37 King's Gambit Accepted: Kotov Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4 gxf3 6. Bxf4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 d2d4 g4f3 c1f4 rnbqkbnr/pppp1p1p/8/8/2BPPB2/5p2/PPP3PP/RN1QK2R b KQkq - +C37 King's Gambit Accepted: Lolli Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+ e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 c4f7 rnbqkbnr/pppp1B1p/8/8/4Ppp1/5N2/PPPP2PP/RNBQK2R b KQkq - +C37 King's Gambit Accepted: Lolli Gambit, Young Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+ Kxf7 6. O-O gxf3 7. Qxf3 Qf6 8. d4 Qxd4+ 9. Be3 Qf6 10. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 c4f7 e8f7 e1g1 g4f3 d1f3 d8f6 d2d4 f6d4 c1e3 d4f6 b1c3 rnb2bnr/pppp1k1p/5q2/8/4Pp2/2N1BQ2/PPP3PP/R4RK1 b - - +C37 King's Gambit Accepted: McDonnell Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 b1c3 rnbqkbnr/pppp1p1p/8/8/2B1Ppp1/2N2N2/PPPP2PP/R1BQK2R b KQkq - +C37 King's Gambit Accepted: Middleton Countergambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 d6 5. O-O Bg4 6. h3 h5 7. hxg4 hxg4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 d7d6 e1g1 c8g4 h2h3 h7h5 h3g4 h5g4 rn1qkbnr/ppp2p2/3p4/6p1/2B1Ppp1/5N2/PPPP2P1/RNBQ1RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit Accepted, From's Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qe7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8e7 rnb1kbnr/ppppqp1p/8/8/2B1Pp2/5Q2/PPPP2PP/RNB2RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Brentano Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O d5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 d7d5 rnbqkbnr/ppp2p1p/8/3p4/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Holloway Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Nc6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 b8c6 r1bqkbnr/pppp1p1p/2n5/8/2B1Pp2/5Q2/PPPP2PP/RNB2RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Kling and Horwitz Counterattack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O Qe7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 d8e7 rnb1kbnr/ppppqp1p/8/8/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Sarratt Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 rnb1kbnr/pppp1p1p/5q2/8/2B1Pp2/5Q2/PPPP2PP/RNB2RK1 w kq - +C37 King's Gambit Accepted: Muzio Gambit, Wild Muzio Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 rnbqkbnr/pppp1p1p/8/8/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 b kq - +C37 King's Gambit Accepted: Quade Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 b1c3 rnbqkbnr/pppp1p1p/8/6p1/4Pp2/2N2N2/PPPP2PP/R1BQKB1R b KQkq - +C37 King's Gambit Accepted: Rosentreter Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 rnbqkbnr/pppp1p1p/8/6p1/3PPp2/5N2/PPP3PP/RNBQKB1R b KQkq - +C37 King's Gambit Accepted: Rosentreter Gambit, Bird Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5 Qh4+ 6. g3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 f3e5 d8h4 g2g3 rnb1kbnr/pppp1p1p/8/4N3/3PPppq/6P1/PPP4P/RNBQKB1R b KQkq - +C37 King's Gambit Accepted: Rosentreter Gambit, Sörensen Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 b1c3 rnbqkbnr/pppp1p1p/8/8/3PPpp1/2N2N2/PPP3PP/R1BQKB1R b KQkq - +C37 King's Gambit Accepted: Rosentreter Gambit, Testa Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Bxf4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 c1f4 rnbqkbnr/pppp1p1p/8/8/3PPBp1/5N2/PPP3PP/RN1QKB1R b KQkq - +C37 King's Gambit Accepted: Salvio Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 rnbqkbnr/pppp1p1p/8/4N3/2B1Ppp1/8/PPPP2PP/RNBQK2R b KQkq - +C37 King's Gambit Accepted: Salvio Gambit, Anderssen Counterattack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 d6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8h6 d2d4 d7d6 rnb1kb1r/ppp2p1p/3p3n/4N3/2BPPppq/8/PPP3PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Salvio Gambit, Cochrane Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 f3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 f4f3 rnb1kbnr/pppp1p1p/8/4N3/2B1P1pq/5p2/PPPP2PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Salvio Gambit, Santa Maria Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8f6 rnb1kb1r/pppp1p1p/5n2/4N3/2B1Pppq/8/PPPP2PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Salvio Gambit, Silberschmidt Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8h6 rnb1kb1r/pppp1p1p/7n/4N3/2B1Pppq/8/PPPP2PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Salvio Gambit, Viennese Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nc6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 b8c6 r1b1kbnr/pppp1p1p/2n5/4N3/2B1Pppq/8/PPPP2PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Silberschmidt Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 f3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8h6 d2d4 f4f3 rnb1kb1r/pppp1p1p/7n/4N3/2BPP1pq/5p2/PPP3PP/RNBQ1K1R w kq - +C37 King's Gambit Accepted: Sörensen Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 f3e5 rnbqkbnr/pppp1p1p/8/4N3/3PPpp1/8/PPP3PP/RNBQKB1R b KQkq - +C38 King's Gambit Accepted: Greco Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 h6 6. d4 d6 7. Nc3 c6 8. hxg5 hxg5 9. Rxh8 Bxh8 10. Ne5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 h2h4 h7h6 d2d4 d7d6 b1c3 c7c6 h4g5 h6g5 h1h8 g7h8 f3e5 rnbqk1nb/pp3p2/2pp4/4N1p1/2BPPp2/2N5/PPP3P1/R1BQK3 b Qq - +C38 King's Gambit Accepted: Hanstein Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. O-O e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 e1g1 rnbqk1nr/pppp1pbp/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQ1RK1 b kq - +C38 King's Gambit Accepted: Mayet Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. d4 d6 6. c3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 d2d4 d7d6 c2c3 rnbqk1nr/ppp2pbp/3p4/6p1/2BPPp2/2P2N2/PP4PP/RNBQK2R b KQkq - +C38 King's Gambit Accepted: Philidor Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 h2h4 rnbqk1nr/pppp1pbp/8/6p1/2B1Pp1P/5N2/PPPP2P1/RNBQK2R b KQkq - +C38 King's Gambit Accepted: Philidor Gambit, Schultz Variation 1. e4 e5 2. f4 exf4 3. Nf3 h6 4. Bc4 d6 5. d4 g5 6. h4 Bg7 7. Qd3 e2e4 e7e5 f2f4 e5f4 g1f3 h7h6 f1c4 d7d6 d2d4 g7g5 h2h4 f8g7 d1d3 rnbqk1nr/ppp2pb1/3p3p/6p1/2BPPp1P/3Q1N2/PPP3P1/RNB1K2R b KQkq - +C38 King's Gambit Accepted: Traditional Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 rnbqk1nr/pppp1pbp/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq - +C39 King's Gambit Accepted: Allgaier Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 rnbqkbnr/pppp1p1p/8/6N1/4PppP/8/PPPP2P1/RNBQKB1R b KQkq - +C39 King's Gambit Accepted: Allgaier Gambit, Thorold Attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d2d4 rnbq1bnr/pppp1k2/7p/8/3PPppP/8/PPP3P1/RNBQKB1R b KQ - +C39 King's Gambit Accepted: Allgaier Gambit, Urusov Attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+ e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 f1c4 rnbq1bnr/pppp1k2/7p/8/2B1PppP/8/PPPP2P1/RNBQK2R b KQ - +C39 King's Gambit Accepted: Allgaier, Blackburne Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 b1c3 rnbq1bnr/pppp1k2/7p/8/4PppP/2N5/PPPP2P1/R1BQKB1R b KQ - +C39 King's Gambit Accepted: Allgaier, Cook Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4 d5 8. Bxf4 dxe4 9. Bc4+ Kg7 10. Be5+ e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d2d4 d7d5 c1f4 d5e4 f1c4 f7g7 f4e5 rnbq1bnr/ppp3k1/7p/4B3/2BPp1pP/8/PPP3P1/RN1QK2R b KQ - +C39 King's Gambit Accepted: Allgaier, Horny Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Qxg4 Nf6 8. Qxf4 Bd6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d1g4 g8f6 g4f4 f8d6 rnbq3r/pppp1k2/3b1n1p/8/4PQ1P/8/PPPP2P1/RNB1KB1R w KQ - +C39 King's Gambit Accepted: Allgaier, Schlechter Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 g8f6 rnbqkb1r/pppp1p1p/5n2/6N1/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Allgaier, Urusov Attack 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+ d5 8. Bxd5+ Kg7 9. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 f1c4 d7d5 c4d5 f7g7 d2d4 rnbq1bnr/ppp3k1/7p/3B4/3PPppP/8/PPP3P1/RNBQK2R b KQ - +C39 King's Gambit Accepted: Kieseritzky Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 rnbqkbnr/pppp1p1p/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Anderssen Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 rnbqk2r/ppp2p1p/3b1n2/3PN3/2B2ppP/8/PPPP2P1/RNBQK2R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Anderssen-Cordel Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. d4 Nh5 9. Bxf4 Nxf4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 d2d4 f6h5 c1f4 h5f4 rnbqk2r/ppp2p1p/3b4/3PN3/2BP1npP/8/PPP3P1/RN1QK2R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Berlin Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 rnbqkb1r/pppp1p1p/5n2/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Berlin Defense, Rubinstein Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. d4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 d2d4 rnbqkb1r/pppp1p1p/5n2/4N3/3PPppP/8/PPP3P1/RNBQKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Berlin Defense, de Riviere Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Nxg4 d5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 e5g4 d7d5 rnbqkb1r/ppp2p1p/5n2/3p4/4PpNP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 rnbqkbnr/ppp2p1p/8/3pN3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 c1f4 rnbqkb1r/ppp2p1p/5n2/3pN3/3PPBpP/8/PPP3P1/RN1QKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense, Caro Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4 Nxe4 8. Nd2 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 c1f4 f6e4 b1d2 rnbqkb1r/ppp2p1p/8/3pN3/3PnBpP/8/PPPN2P1/R2QKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense, Kaplanek Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. exd5 Qxd5 8. Nc3 Bb4 9. Kf2 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 e4d5 d8d5 b1c3 f8b4 e1f2 rnb1k2r/ppp2p1p/5n2/3qN3/1b1P1ppP/2N5/PPP2KP1/R1BQ1B1R b kq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Cotter Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 rnbqkbnr/pppp1N2/7p/8/4PppP/8/PPPP2P1/RNBQKB1R b KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Kolisch Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d6 rnbqkbnr/ppp2p1p/3p4/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Long Whip 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 h7h5 rnbqkbnr/pppp1p2/8/4N2p/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nc6 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 b8c6 r1bqkbnr/pppp1p1p/2n5/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Paulsen Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Bg7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 f8g7 rnbqk1nr/pppp1pbp/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Paulsen Defense Deferred 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bg7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8g7 rnbqk2r/ppp2pbp/5n2/3PN3/2B2ppP/8/PPPP2P1/RNBQK2R w KQkq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Rice Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. O-O Bxe5 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 e1g1 d6e5 rnbqk2r/ppp2p1p/5n2/3Pb3/2B2ppP/8/PPPP2P1/RNBQ1RK1 w kq - +C39 King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d8e7 rnb1kbnr/ppppqp1p/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky, Long Whip Defense, Jaenisch Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Rh7 7. d4 Bh6 8. Nc3 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 h7h5 f1c4 h8h7 d2d4 f8h6 b1c3 rnbqk1n1/pppp1p1r/7b/4N2p/2BPPppP/2N5/PPP3P1/R1BQK2R b KQq - +C39 King's Gambit Accepted: Kieseritzky, Polerio Defense 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Be7 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 f8e7 rnbqk1nr/ppppbp1p/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - +C39 King's Gambit Accepted: Kieseritzky, Rice Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. O-O e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 e1g1 rnbqk2r/ppp2p1p/3b1n2/3PN3/2B2ppP/8/PPPP2P1/RNBQ1RK1 b kq - +C39 King's Gambit Accepted: Kieseritzky, Salvio Defense, Cozio Variation 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7 6. d4 f5 7. Bc4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d8e7 d2d4 f7f5 f1c4 rnb1kbnr/ppppq2p/8/4Np2/2BPPppP/8/PPP3P1/RNBQK2R b KQkq - +C39 King's Gambit Accepted: King Knight's Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 rnbqkbnr/pppp1p1p/8/6p1/4Pp1P/5N2/PPPP2P1/RNBQKB1R b KQkq - +C40 Elephant Gambit 1. e4 e5 2. Nf3 d5 e2e4 e7e5 g1f3 d7d5 rnbqkbnr/ppp2ppp/8/3pp3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Elephant Gambit: Maróczy Gambit 1. e4 e5 2. Nf3 d5 3. exd5 Bd6 e2e4 e7e5 g1f3 d7d5 e4d5 f8d6 rnbqk1nr/ppp2ppp/3b4/3Pp3/8/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Elephant Gambit: Paulsen Countergambit 1. e4 e5 2. Nf3 d5 3. exd5 e4 e2e4 e7e5 g1f3 d7d5 e4d5 e5e4 rnbqkbnr/ppp2ppp/8/3P4/4p3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Elephant Gambit: Wasp Variation 1. e4 e5 2. Nf3 d5 3. Nxe5 dxe4 4. Bc4 Qg5 e2e4 e7e5 g1f3 d7d5 f3e5 d5e4 f1c4 d8g5 rnb1kbnr/ppp2ppp/8/4N1q1/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - +C40 Gunderam Defense 1. e4 e5 2. Nf3 Qe7 e2e4 e7e5 g1f3 d8e7 rnb1kbnr/ppppqppp/8/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Knight Opening 1. e4 e5 2. Nf3 e2e4 e7e5 g1f3 rnbqkbnr/pppp1ppp/8/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +C40 King's Pawn Game: Busch-Gass Gambit 1. e4 e5 2. Nf3 Bc5 e2e4 e7e5 g1f3 f8c5 rnbqk1nr/pppp1ppp/8/2b1p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: Busch-Gass Gambit, Chiodini Gambit 1. e4 e5 2. Nf3 Bc5 3. Nxe5 Nc6 e2e4 e7e5 g1f3 f8c5 f3e5 b8c6 r1bqk1nr/pppp1ppp/2n5/2b1N3/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: Damiano Defense 1. e4 e5 2. Nf3 f6 e2e4 e7e5 g1f3 f7f6 rnbqkbnr/pppp2pp/5p2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: Damiano Defense, Damiano Gambit 1. e4 e5 2. Nf3 f6 3. Nxe5 fxe5 4. Qh5+ g6 5. Qxe5+ Qe7 6. Qxh8 e2e4 e7e5 g1f3 f7f6 f3e5 f6e5 d1h5 g7g6 h5e5 d8e7 e5h8 rnb1kbnQ/ppppq2p/6p1/8/4P3/8/PPPP1PPP/RNB1KB1R b KQq - +C40 King's Pawn Game: Damiano Defense, Damiano Gambit, Chigorin Gambit 1. e4 e5 2. Nf3 f6 3. Nxe5 Qe7 4. Nf3 d5 e2e4 e7e5 g1f3 f7f6 f3e5 d8e7 e5f3 d7d5 rnb1kbnr/ppp1q1pp/5p2/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: Gunderam Defense, Gunderam Gambit 1. e4 e5 2. Nf3 Qe7 3. Bc4 f5 e2e4 e7e5 g1f3 d8e7 f1c4 f7f5 rnb1kbnr/ppppq1pp/8/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C40 King's Pawn Game: Gunderam Gambit 1. e4 e5 2. Nf3 c6 e2e4 e7e5 g1f3 c7c6 rnbqkbnr/pp1p1ppp/2p5/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 King's Pawn Game: La Bourdonnais Gambit 1. e4 e5 2. Nf3 Qf6 3. Bc4 Qg6 4. O-O e2e4 e7e5 g1f3 d8f6 f1c4 f6g6 e1g1 rnb1kbnr/pppp1ppp/6q1/4p3/2B1P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C40 King's Pawn Game: McConnell Defense 1. e4 e5 2. Nf3 Qf6 e2e4 e7e5 g1f3 d8f6 rnb1kbnr/pppp1ppp/5q2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Latvian Gambit 1. e4 e5 2. Nf3 f5 e2e4 e7e5 g1f3 f7f5 rnbqkbnr/pppp2pp/8/4pp2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C40 Latvian Gambit Accepted 1. e4 e5 2. Nf3 f5 3. exf5 e2e4 e7e5 g1f3 f7f5 e4f5 rnbqkbnr/pppp2pp/8/4pP2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Bilguer Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 rnb1kbnr/ppp3pp/3p1q2/5p2/2NPP3/8/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Bronstein Attack 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Be2 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 f5e4 f1e2 rnb1kbnr/ppp3pp/3p1q2/8/2NPp3/8/PPP1BPPP/RNBQK2R b KQkq - +C40 Latvian Gambit Accepted: Bronstein Gambit 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Qh5+ g6 7. Qe2 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 f5e4 d1h5 g7g6 h5e2 rnb1kbnr/ppp4p/3p1qp1/8/2NPp3/8/PPP1QPPP/RNB1KB1R b KQkq - +C40 Latvian Gambit Accepted: Foltys Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 fxe4 5. d3 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 e5c4 f5e4 d2d3 rnb1kbnr/pppp2pp/5q2/8/2N1p3/3P4/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Foltys-Leonhardt Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 e5c4 rnb1kbnr/pppp2pp/5q2/5p2/2N1P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Leonhardt Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 fxe4 5. Nc3 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 e5c4 f5e4 b1c3 rnb1kbnr/pppp2pp/5q2/8/2N1p3/2N5/PPPP1PPP/R1BQKB1R b KQkq - +C40 Latvian Gambit Accepted: Main Line 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 rnb1kbnr/pppp2pp/5q2/4Np2/3PP3/8/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit Accepted: Nimzowitsch Attack 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Ne3 e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 f5e4 c4e3 rnb1kbnr/ppp3pp/3p1q2/8/3Pp3/4N3/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit: Behting Variation 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. Nf7 Qxg2 6. Rf1 d5 7. Nxh8 Nf6 e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 d8g5 e5f7 g5g2 h1f1 d7d5 f7h8 g8f6 rnb1kb1N/ppp3pp/5n2/3p4/2B1p3/8/PPPP1PqP/RNBQKR2 w Qq - +C40 Latvian Gambit: Corkscrew Countergambit 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Nf6 e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 g8f6 rnbqkb1r/pppp2pp/5n2/4N3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - +C40 Latvian Gambit: Corkscrew Gambit 1. e4 e5 2. Nf3 f5 3. Nxe5 Nf6 4. Bc4 fxe4 5. Nf7 Qe7 6. Nxh8 d5 e2e4 e7e5 g1f3 f7f5 f3e5 g8f6 f1c4 f5e4 e5f7 d8e7 f7h8 d7d5 rnb1kb1N/ppp1q1pp/5n2/3p4/2B1p3/8/PPPP1PPP/RNBQK2R w KQq - +C40 Latvian Gambit: Diepstraten Countergambit 1. e4 e5 2. Nf3 f5 3. c4 e2e4 e7e5 g1f3 f7f5 c2c4 rnbqkbnr/pppp2pp/8/4pp2/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit: Fraser Defense 1. e4 e5 2. Nf3 f5 3. Nxe5 Nc6 e2e4 e7e5 g1f3 f7f5 f3e5 b8c6 r1bqkbnr/pppp2pp/2n5/4Np2/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C40 Latvian Gambit: Greco Variation 1. e4 e5 2. Nf3 f5 3. Nxe5 Qe7 e2e4 e7e5 g1f3 f7f5 f3e5 d8e7 rnb1kbnr/ppppq1pp/8/4Np2/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C40 Latvian Gambit: Lobster Gambit 1. e4 e5 2. Nf3 f5 3. g4 e2e4 e7e5 g1f3 f7f5 g2g4 rnbqkbnr/pppp2pp/8/4pp2/4P1P1/5N2/PPPP1P1P/RNBQKB1R b KQkq - +C40 Latvian Gambit: Mason Countergambit 1. e4 e5 2. Nf3 f5 3. d4 e2e4 e7e5 g1f3 f7f5 d2d4 rnbqkbnr/pppp2pp/8/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C40 Latvian Gambit: Mayet Attack 1. e4 e5 2. Nf3 f5 3. Bc4 e2e4 e7e5 g1f3 f7f5 f1c4 rnbqkbnr/pppp2pp/8/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C40 Latvian Gambit: Mayet Attack, Morgado Defense 1. e4 e5 2. Nf3 f5 3. Bc4 Nf6 e2e4 e7e5 g1f3 f7f5 f1c4 g8f6 rnbqkb1r/pppp2pp/5n2/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C40 Latvian Gambit: Mayet Attack, Poisoned Pawn Variation 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. d4 Qxg2 e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 d8g5 d2d4 g5g2 rnb1kbnr/pppp2pp/8/4N3/2BPp3/8/PPP2PqP/RNBQK2R w KQkq - +C40 Latvian Gambit: Mayet Attack, Polerio-Svedenborg Variation 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 d5 e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 d7d5 rnbqkbnr/ppp3pp/8/3pN3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - +C40 Latvian Gambit: Mayet Attack, Strautins Gambit 1. e4 e5 2. Nf3 f5 3. Bc4 b5 e2e4 e7e5 g1f3 f7f5 f1c4 b7b5 rnbqkbnr/p1pp2pp/8/1p2pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C40 Latvian Gambit: Mlotkowski Variation 1. e4 e5 2. Nf3 f5 3. Nc3 e2e4 e7e5 g1f3 f7f5 b1c3 rnbqkbnr/pppp2pp/8/4pp2/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C40 Latvian Gambit: Senechaud Gambit 1. e4 e5 2. Nf3 f5 3. b4 e2e4 e7e5 g1f3 f7f5 b2b4 rnbqkbnr/pppp2pp/8/4pp2/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +C41 Philidor Defense 1. e4 e5 2. Nf3 d6 e2e4 e7e5 g1f3 d7d6 rnbqkbnr/ppp2ppp/3p4/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C41 Philidor Defense 1. e4 e5 2. Nf3 d6 3. d4 e2e4 e7e5 g1f3 d7d6 d2d4 rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense 1. e4 e5 2. Nf3 d6 3. Bc4 e2e4 e7e5 g1f3 d7d6 f1c4 rnbqkbnr/ppp2ppp/3p4/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C41 Philidor Defense 1. e4 e5 2. Nf3 d6 3. Bc4 Be7 e2e4 e7e5 g1f3 d7d6 f1c4 f8e7 rnbqk1nr/ppp1bppp/3p4/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C41 Philidor Defense: Albin-Blackburne Gambit 1. e4 e5 2. Nf3 d6 3. d4 Bg4 4. dxe5 Nd7 e2e4 e7e5 g1f3 d7d6 d2d4 c8g4 d4e5 b8d7 r2qkbnr/pppn1ppp/3p4/4P3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Berger Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 O-O 7. O-O c5 8. Nf3 Nc6 9. Bg5 Be6 10. Re1 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g8f6 b1c3 f8e7 f1e2 e8g8 e1g1 c7c5 d4f3 b8c6 c1g5 c8e6 f1e1 r2q1rk1/pp2bppp/2npbn2/2p3B1/4P3/2N2N2/PPP1BPPP/R2QR1K1 b - - +C41 Philidor Defense: Bird Gambit 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. c3 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 c2c3 rnbqkbnr/ppp2ppp/3p4/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Boden Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Bd7 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 d1d4 c8d7 rn1qkbnr/pppb1ppp/3p4/8/3QP3/5N2/PPP2PPP/RNB1KB1R w KQkq - +C41 Philidor Defense: Exchange Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 rnbqkbnr/ppp2ppp/3p4/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Exchange Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 rnbqkbnr/ppp2ppp/3p4/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Exchange Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g8f6 rnbqkb1r/ppp2ppp/3p1n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Hanham Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 r1bqkbnr/pppn1ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Hanham Variation, Delmar Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. c3 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 c2c3 r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/2P2N2/PP3PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Hanham Variation, Krause Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 e1g1 r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C41 Philidor Defense: Hanham Variation, Schlechter Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Nc3 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 b1c3 r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +C41 Philidor Defense: Hanham Variation, Sharp Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 Nb6 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 d7b6 r1bqkbnr/ppp2ppp/1n1p4/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C41 Philidor Defense: Hanham Variation, Steiner Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O Be7 6. dxe5 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 e1g1 f8e7 d4e5 r1bqk1nr/pp1nbppp/2pp4/4P3/2B1P3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C41 Philidor Defense: Hanham, Berger Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5 Nh6 6. f4 Be7 7. O-O O-O 8. c3 d5 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 f3g5 g8h6 f2f4 f8e7 e1g1 e8g8 c2c3 d6d5 r1bq1rk1/pp1nbppp/2p4n/3pp1N1/2BPPP2/2P5/PP4PP/RNBQ1RK1 w - - +C41 Philidor Defense: Hanham, Kmoch Variation 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 f3g5 r1bqkbnr/pp1n1ppp/2pp4/4p1N1/2BPP3/8/PPP2PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Larsen Variation 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 g6 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g7g6 rnbqkbnr/ppp2p1p/3p2p1/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Lion Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 r1bqkb1r/pppn1ppp/3p1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +C41 Philidor Defense: Lion Variation, Bishop Sacrifice 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Bxf7+ e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 f8e7 c4f7 r1bqk2r/pppnbBpp/3p1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +C41 Philidor Defense: Lion Variation, Delayed Bishop Sacrifice 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. dxe5 dxe5 7. Bxf7+ e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 g1f3 e7e5 f1c4 f8e7 d4e5 d6e5 c4f7 r1bqk2r/pppnbBpp/5n2/4p3/4P3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +C41 Philidor Defense: Lion Variation, Forcing Line 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+ Rxf7 8. Ne6 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 f8e7 f3g5 e8g8 c4f7 f8f7 g5e6 r1bq2k1/pppnbrpp/3pNn2/4p3/3PP3/2N5/PPP2PPP/R1BQK2R b KQ - +C41 Philidor Defense: Lion Variation, Lion's Claw 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 h6 6. O-O Be7 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 h7h6 e1g1 f8e7 r1bqk2r/pppnbpp1/3p1n1p/4p3/2BPP3/2N2N2/PPP2PPP/R1BQ1RK1 w kq - +C41 Philidor Defense: Lion Variation, Shirov Gambit 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Nc3 Ngf6 5. g4 e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 b1c3 g8f6 g2g4 r1bqkb1r/pppn1ppp/3p1n2/4p3/3PP1P1/2N2N2/PPP2P1P/R1BQKB1R b KQkq - +C41 Philidor Defense: Lion Variation, Sozin Variation 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Qe2 c6 8. a4 exd4 e2e4 d7d6 d2d4 g8f6 b1c3 e7e5 g1f3 b8d7 f1c4 f8e7 e1g1 e8g8 d1e2 c7c6 a2a4 e5d4 r1bq1rk1/pp1nbppp/2pp1n2/8/P1BpP3/2N2N2/1PP1QPPP/R1B2RK1 w - - +C41 Philidor Defense: Lopez Countergambit 1. e4 e5 2. Nf3 d6 3. Bc4 f5 e2e4 e7e5 g1f3 d7d6 f1c4 f7f5 rnbqkbnr/ppp3pp/3p4/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C41 Philidor Defense: Lopez Countergambit, Jaenisch Variation 1. e4 e5 2. Nf3 d6 3. d4 f5 4. Bc4 exd4 5. Ng5 Nh6 6. Nxh7 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 f1c4 e5d4 f3g5 g8h6 g5h7 rnbqkb1r/ppp3pN/3p3n/5p2/2BpP3/8/PPP2PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Morphy Gambit 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Bc4 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f1c4 rnbqkbnr/ppp2ppp/3p4/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Nimzowitsch Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 rnbqkb1r/ppp2ppp/3p1n2/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Nimzowitsch Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5 rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Nimzowitsch Variation, Klein Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Bc4 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 f1c4 rnbqkb1r/ppp2ppp/3p1n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C41 Philidor Defense: Nimzowitsch Variation, Rellstab Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Qd5 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5 f6e4 d1d5 rnbqkb1r/ppp2ppp/3p4/3QP3/4n3/5N2/PPP2PPP/RNB1KB1R b KQkq - +C41 Philidor Defense: Nimzowitsch Variation, Sokolsky Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Nbd2 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5 f6e4 b1d2 rnbqkb1r/ppp2ppp/3p4/4P3/4n3/5N2/PPPN1PPP/R1BQKB1R b KQkq - +C41 Philidor Defense: Nimzowitsch, Larobok Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+ e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 f8e7 f3g5 e8g8 c4f7 r1bq1rk1/pppnbBpp/3p1n2/4p1N1/3PP3/2N5/PPP2PPP/R1BQK2R b KQ - +C41 Philidor Defense: Nimzowitsch, Locock Variation 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Ng5 e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 f3g5 rnbqkb1r/ppp2ppp/3p1n2/4p1N1/3PP3/8/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Paulsen Attack 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 d5 5. exd5 e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 d6d5 e4d5 rnbqkbnr/ppp2ppp/8/3P4/3N4/8/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Philidor Countergambit 1. e4 e5 2. Nf3 d6 3. d4 f5 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 rnbqkbnr/ppp3pp/3p4/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Philidor Countergambit, Berger Variation 1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6 Bc5 7. Nc3 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 d4e5 f5e4 f3g5 d6d5 e5e6 f8c5 b1c3 rnbqk1nr/ppp3pp/4P3/2bp2N1/4p3/2N5/PPP2PPP/R1BQKB1R b KQkq - +C41 Philidor Defense: Philidor Countergambit, Zukertort Variation 1. e4 e5 2. Nf3 d6 3. d4 f5 4. Nc3 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 b1c3 rnbqkbnr/ppp3pp/3p4/4pp2/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +C41 Philidor Defense: Philidor Countergambit, del Rio Attack 1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6 e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 d4e5 f5e4 f3g5 d6d5 e5e6 rnbqkbnr/ppp3pp/4P3/3p2N1/4p3/8/PPP2PPP/RNBQKB1R b KQkq - +C41 Philidor Defense: Philidor Gambit 1. e4 e5 2. Nf3 d6 3. d4 Bd7 e2e4 e7e5 g1f3 d7d6 d2d4 c8d7 rn1qkbnr/pppb1ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C41 Philidor Defense: Steinitz Variation 1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. c3 e2e4 e7e5 g1f3 d7d6 f1c4 f8e7 c2c3 rnbqk1nr/ppp1bppp/3p4/4p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 e2e4 e7e5 g1f3 g8f6 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 3. Nxe5 e2e4 e7e5 g1f3 g8f6 f3e5 rnbqkb1r/pppp1ppp/5n2/4N3/4P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 rnbqkb1r/ppp2ppp/3p1n2/4N3/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 rnbqkb1r/ppp2ppp/3p1n2/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 rnbqkb1r/ppp2ppp/3p4/8/4n3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game: Classical Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 rnbqkb1r/ppp2ppp/3p4/8/3Pn3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C42 Russian Game: Classical Attack, Berger Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. Nbd2 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 c8g4 c2c3 f7f5 b1d2 r2qk2r/ppp1b1pp/2n5/3p1p2/3Pn1b1/2PB1N2/PP1N1PPP/R1BQR1K1 b kq - +C42 Russian Game: Classical Attack, Chigorin Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 r1bqk2r/ppp1bppp/2n5/3p4/3Pn3/3B1N2/PPP2PPP/RNBQR1K1 b kq - +C42 Russian Game: Classical Attack, Chigorin Variation, Browne Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nb4 9. cxd5 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 e1g1 f8e7 c2c4 c6b4 c4d5 r1bqk2r/ppp1bppp/8/3P4/1n1Pn3/3B1N2/PP3PPP/RNBQ1RK1 b kq - +C42 Russian Game: Classical Attack, Chigorin Variation, Main Line 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nb4 9. Be2 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 e1g1 f8e7 c2c4 c6b4 d3e2 r1bqk2r/ppp1bppp/8/3p4/1nPPn3/5N2/PP2BPPP/RNBQ1RK1 b kq - +C42 Russian Game: Classical Attack, Closed Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Nf6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 e4f6 rnbqkb1r/ppp2ppp/3p1n2/8/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - +C42 Russian Game: Classical Attack, Jaenisch Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 e1g1 f8e7 c2c4 r1bqk2r/ppp1bppp/2n5/3p4/2PPn3/3B1N2/PP3PPP/RNBQ1RK1 b kq - +C42 Russian Game: Classical Attack, Krause Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Re1 Bg4 9. c3 f5 10. c4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 e1g1 f8e7 f1e1 c8g4 c2c3 f7f5 c3c4 r2qk2r/ppp1b1pp/2n5/3p1p2/2PPn1b1/3B1N2/PP3PPP/RNBQR1K1 b kq - +C42 Russian Game: Classical Attack, Marshall Trap 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4 9. cxd5 f5 10. Re1 Bxh2+ e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c8g4 c4d5 f7f5 f1e1 d6h2 rn1q1rk1/ppp3pp/8/3P1p2/3Pn1b1/3B1N2/PP3PPb/RNBQR1K1 w - - +C42 Russian Game: Classical Attack, Marshall Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 rnbqk2r/ppp2ppp/3b4/3p4/3Pn3/3B1N2/PPP2PPP/RNBQK2R w KQkq - +C42 Russian Game: Classical Attack, Marshall Variation, Chinese Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Re1 Bg4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c7c6 f1e1 c8g4 rn1q1rk1/pp3ppp/2pb4/3p4/2PPn1b1/3B1N2/PP3PPP/RNBQR1K1 w - - +C42 Russian Game: Classical Attack, Maróczy Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4 Bh4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 c8g4 c2c3 f7f5 c3c4 e7h4 r2qk2r/ppp3pp/2n5/3p1p2/2PPn1bb/3B1N2/PP3PPP/RNBQR1K1 w kq - +C42 Russian Game: Classical Attack, Mason Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 e8g8 rnbq1rk1/ppp1bppp/8/3p4/3Pn3/3B1N2/PPP2PPP/RNBQ1RK1 w - - +C42 Russian Game: Classical Attack, Mason-Showalter Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 b8c6 r1bqkb1r/ppp2ppp/2n5/3p4/3Pn3/3B1N2/PPP2PPP/RNBQK2R w KQkq - +C42 Russian Game: Classical Attack, Staunton Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c7c6 rnbq1rk1/pp3ppp/2pb4/3p4/2PPn3/3B1N2/PP3PPP/RNBQ1RK1 w - - +C42 Russian Game: Classical Attack, Tarrasch Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c8g4 rn1q1rk1/ppp2ppp/3b4/3p4/2PPn1b1/3B1N2/PP3PPP/RNBQ1RK1 w - - +C42 Russian Game: Cochrane Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f7 rnbqkb1r/ppp2Npp/3p1n2/8/4P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game: Cochrane Gambit, Bishop Check Line 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. Bc4+ e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f7 e8f7 f1c4 rnbq1b1r/ppp2kpp/3p1n2/8/2B1P3/8/PPPP1PPP/RNBQK2R b KQ - +C42 Russian Game: Cochrane Gambit, Center Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. d4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f7 e8f7 d2d4 rnbq1b1r/ppp2kpp/3p1n2/8/3PP3/8/PPP2PPP/RNBQKB1R b KQ - +C42 Russian Game: Cozio Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d1e2 rnbqkb1r/ppp2ppp/3p4/8/4n3/5N2/PPPPQPPP/RNB1KB1R b KQkq - +C42 Russian Game: Damiano Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 e2e4 e7e5 g1f3 g8f6 f3e5 f6e4 rnbqkb1r/pppp1ppp/8/4N3/4n3/8/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game: Damiano Variation, Kholmov Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 4. Qe2 Qe7 e2e4 e7e5 g1f3 g8f6 f3e5 f6e4 d1e2 d8e7 rnb1kb1r/ppppqppp/8/4N3/4n3/8/PPPPQPPP/RNB1KB1R w KQkq - +C42 Russian Game: French Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d3 rnbqkb1r/ppp2ppp/3p4/8/4n3/3P1N2/PPP2PPP/RNBQKB1R b KQkq - +C42 Russian Game: Italian Variation 1. e4 e5 2. Nf3 Nf6 3. Bc4 e2e4 e7e5 g1f3 g8f6 f1c4 rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C42 Russian Game: Karklins-Martinovsky Variation 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nd3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5d3 rnbqkb1r/ppp2ppp/3p1n2/8/4P3/3N4/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game: Kaufmann Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 c2c4 rnbqkb1r/ppp2ppp/3p4/8/2P1n3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +C42 Russian Game: Millennium Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 f1d3 rnbqkb1r/ppp2ppp/3p4/8/4n3/3B1N2/PPPP1PPP/RNBQK2R b KQkq - +C42 Russian Game: Moody Gambit 1. e4 e5 2. Nf3 Nf6 3. Qe2 Nc6 4. d4 e2e4 e7e5 g1f3 g8f6 d1e2 b8c6 d2d4 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/5N2/PPP1QPPP/RNB1KB1R b KQkq - +C42 Russian Game: Nimzowitsch Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 b1c3 rnbqkb1r/ppp2ppp/3p4/8/4n3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C42 Russian Game: Paulsen Attack 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc4 e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5c4 rnbqkb1r/ppp2ppp/3p1n2/8/2N1P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C42 Russian Game: Stafford Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 e2e4 e7e5 g1f3 g8f6 f3e5 b8c6 r1bqkb1r/pppp1ppp/2n2n2/4N3/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game: Stafford Gambit 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 e2e4 e7e5 g1f3 g8f6 f3e5 b8c6 e5c6 d7c6 r1bqkb1r/ppp2ppp/2p2n2/8/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - +C42 Russian Game: Three Knights Game 1. e4 e5 2. Nf3 Nf6 3. Nc3 e2e4 e7e5 g1f3 g8f6 b1c3 rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C43 Bishop's Opening: Urusov Gambit 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 g1f3 rnbqkb1r/pppp1ppp/5n2/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C43 Bishop's Opening: Urusov Gambit, Keidansky Gambit 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 Nxe4 5. Qxd4 e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 g1f3 f6e4 d1d4 rnbqkb1r/pppp1ppp/8/8/2BQn3/5N2/PPP2PPP/RNB1K2R b KQkq - +C43 Russian Game: Modern Attack 1. e4 e5 2. Nf3 Nf6 3. d4 e2e4 e7e5 g1f3 g8f6 d2d4 rnbqkb1r/pppp1ppp/5n2/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C43 Russian Game: Modern Attack 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 rnbqkb1r/pppp1ppp/5n2/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C43 Russian Game: Modern Attack, Bardeleben Variation 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qe2 Nc5 6. Nxd4 Nc6 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1e2 e4c5 f3d4 b8c6 r1bqkb1r/pppp1ppp/2n5/2n1P3/3N4/8/PPP1QPPP/RNB1KB1R w KQkq - +C43 Russian Game: Modern Attack, Center Attack 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qxd4 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1d4 rnbqkb1r/pppp1ppp/8/4P3/3Qn3/5N2/PPP2PPP/RNB1KB1R b KQkq - +C43 Russian Game: Modern Attack, Center Variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 f1d3 rnbqkb1r/pppp1ppp/8/4p3/3Pn3/3B1N2/PPP2PPP/RNBQK2R b KQkq - +C43 Russian Game: Modern Attack, Murrey Variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 Nc6 e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 f1d3 b8c6 r1bqkb1r/pppp1ppp/2n5/4p3/3Pn3/3B1N2/PPP2PPP/RNBQK2R w KQkq - +C43 Russian Game: Modern Attack, Steinitz Variation 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qe2 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1e2 rnbqkb1r/pppp1ppp/8/4P3/3pn3/5N2/PPP1QPPP/RNB1KB1R b KQkq - +C43 Russian Game: Modern Attack, Symmetrical Variation 1. e4 e5 2. Nf3 Nf6 3. d4 d5 e2e4 e7e5 g1f3 g8f6 d2d4 d7d5 rnbqkb1r/ppp2ppp/5n2/3pp3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C43 Russian Game: Modern Attack, Symmetrical Variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 rnbqkb1r/pppp1ppp/8/4p3/3Pn3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C43 Russian Game: Modern Attack, Tal Gambit 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Bb5 e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 f1b5 rnbqkb1r/pppp1ppp/8/1B2P3/3pn3/5N2/PPP2PPP/RNBQK2R b KQkq - +C43 Russian Game: Modern Attack, Trifunovic Variation 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. O-O O-O 7. c4 Bxe5 e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 f1d3 d7d5 f3e5 f8d6 e1g1 e8g8 c2c4 d6e5 rnbq1rk1/ppp2ppp/8/3pb3/2PPn3/3B4/PP3PPP/RNBQ1RK1 w - - +C44 Dresden Opening: The Goblin 1. e4 e5 2. Nf3 Nc6 3. c4 Nf6 4. Nxe5 e2e4 e7e5 g1f3 b8c6 c2c4 g8f6 f3e5 r1bqkb1r/pppp1ppp/2n2n2/4N3/2P1P3/8/PP1P1PPP/RNBQKB1R b KQkq - +C44 Irish Gambit 1. e4 e5 2. Nf3 Nc6 3. Nxe5 e2e4 e7e5 g1f3 b8c6 f3e5 r1bqkbnr/pppp1ppp/2n5/4N3/4P3/8/PPPP1PPP/RNBQKB1R b KQkq - +C44 King's Knight Opening: Konstantinopolsky 1. e4 e5 2. Nf3 Nc6 3. g3 e2e4 e7e5 g1f3 b8c6 g2g3 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5NP1/PPPP1P1P/RNBQKB1R b KQkq - +C44 King's Knight Opening: Normal Variation 1. e4 e5 2. Nf3 Nc6 e2e4 e7e5 g1f3 b8c6 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - +C44 King's Pawn Game: Dresden Opening 1. e4 e5 2. Nf3 Nc6 3. c4 e2e4 e7e5 g1f3 b8c6 c2c4 r1bqkbnr/pppp1ppp/2n5/4p3/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - +C44 King's Pawn Game: Pachman Wing Gambit 1. e4 e5 2. Nf3 Nc6 3. b4 e2e4 e7e5 g1f3 b8c6 b2b4 r1bqkbnr/pppp1ppp/2n5/4p3/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - +C44 King's Pawn Game: Schulze-Müller Gambit 1. e4 e5 2. Nf3 Nc6 3. Nxe5 Nxe5 4. d4 e2e4 e7e5 g1f3 b8c6 f3e5 c6e5 d2d4 r1bqkbnr/pppp1ppp/8/4n3/3PP3/8/PPP2PPP/RNBQKB1R b KQkq - +C44 King's Pawn Game: Tayler Opening 1. e4 e5 2. Nf3 Nc6 3. Be2 e2e4 e7e5 g1f3 b8c6 f1e2 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5N2/PPPPBPPP/RNBQK2R b KQkq - +C44 King's Pawn Game: Tayler Opening, Basman Gambit 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d4 exd4 5. e5 e2e4 e7e5 g1f3 b8c6 f1e2 g8f6 d2d4 e5d4 e4e5 r1bqkb1r/pppp1ppp/2n2n2/4P3/3p4/5N2/PPP1BPPP/RNBQK2R b KQkq - +C44 King's Pawn Game: Tayler Opening, Inverted Hanham 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d3 d5 5. Nbd2 e2e4 e7e5 g1f3 b8c6 f1e2 g8f6 d2d3 d7d5 b1d2 r1bqkb1r/ppp2ppp/2n2n2/3pp3/4P3/3P1N2/PPPNBPPP/R1BQK2R b KQkq - +C44 Latvian Gambit: Clam Gambit 1. e4 e5 2. Nf3 Nc6 3. d3 f5 4. exf5 e2e4 e7e5 g1f3 b8c6 d2d3 f7f5 e4f5 r1bqkbnr/pppp2pp/2n5/4pP2/8/3P1N2/PPP2PPP/RNBQKB1R b KQkq - +C44 Ponziani Opening 1. e4 e5 2. Nf3 Nc6 3. c3 e2e4 e7e5 g1f3 b8c6 c2c3 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - +C44 Ponziani Opening: Caro Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Bd7 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 c8d7 r2qkbnr/pppb1ppp/2n5/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq - +C44 Ponziani Opening: Jaenisch Counterattack 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 e2e4 e7e5 g1f3 b8c6 c2c3 g8f6 r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +C44 Ponziani Opening: Leonhardt Variation 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Nf6 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 g8f6 r1bqkb1r/ppp2ppp/2n2n2/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq - +C44 Ponziani Opening: Neumann Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. Bc4 e2e4 e7e5 g1f3 b8c6 c2c3 g8f6 f1c4 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C44 Ponziani Opening: Ponziani Countergambit 1. e4 e5 2. Nf3 Nc6 3. c3 f5 e2e4 e7e5 g1f3 b8c6 c2c3 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +C44 Ponziani Opening: Ponziani Countergambit, Cordel Variation 1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5 fxe4 6. Ng5 Nb8 7. Nxe4 Nf6 8. Bd3 Be7 e2e4 e7e5 g1f3 b8c6 c2c3 f7f5 d2d4 d7d6 d4d5 f5e4 f3g5 c6b8 g5e4 g8f6 f1d3 f8e7 rnbqk2r/ppp1b1pp/3p1n2/3Pp3/4N3/2PB4/PP3PPP/RNBQK2R w KQkq - +C44 Ponziani Opening: Ponziani Countergambit, Schmidt Attack 1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5 e2e4 e7e5 g1f3 b8c6 c2c3 f7f5 d2d4 d7d6 d4d5 r1bqkbnr/ppp3pp/2np4/3Ppp2/4P3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C44 Ponziani Opening: Romanishin Variation 1. e4 e5 2. Nf3 Nc6 3. c3 Be7 e2e4 e7e5 g1f3 b8c6 c2c3 f8e7 r1bqk1nr/ppppbppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +C44 Ponziani Opening: Réti Variation 1. e4 e5 2. Nf3 Nc6 3. c3 Nge7 e2e4 e7e5 g1f3 b8c6 c2c3 g8e7 r1bqkb1r/ppppnppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq - +C44 Ponziani Opening: Spanish Variation 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Bb5 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 f1b5 r1bqkbnr/ppp2ppp/2n5/1B1pp3/4P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C44 Ponziani Opening: Spanish Variation, Harrwitz Attack, Nikitin Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Bb5 dxe4 5. Nxe5 Qd5 6. Qa4 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 f1b5 d5e4 f3e5 d8d5 d1a4 r1b1kbnr/ppp2ppp/2n5/1B1qN3/Q3p3/2P5/PP1P1PPP/RNB1K2R b KQkq - +C44 Ponziani Opening: Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 f6 e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 f7f6 r1bqkbnr/ppp3pp/2n2p2/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq - +C44 Ponziani Opening: Vukovic Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 Nxe4 5. d5 Bc5 e2e4 e7e5 g1f3 b8c6 c2c3 g8f6 d2d4 f6e4 d4d5 f8c5 r1bqk2r/pppp1ppp/2n5/2bPp3/4n3/2P2N2/PP3PPP/RNBQKB1R w KQkq - +C44 Scotch Game 1. e4 e5 2. Nf3 Nc6 3. d4 e2e4 e7e5 g1f3 b8c6 d2d4 r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - +C44 Scotch Game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 r1bqkbnr/pppp1ppp/2n5/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C44 Scotch Game: Benima Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1c4 f8e7 d2d4 e5d4 r1bqk1nr/ppppbppp/2n5/8/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Cochrane Variation 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 4. Nxe5 Ne6 5. Bc4 c6 6. O-O Nf6 7. Nxf7 e2e4 e7e5 g1f3 b8c6 d2d4 c6d4 f3e5 d4e6 f1c4 c7c6 e1g1 g8f6 e5f7 r1bqkb1r/pp1p1Npp/2p1nn2/8/2B1P3/8/PPP2PPP/RNBQ1RK1 b kq - +C44 Scotch Game: Cochrane Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. bxc3 Ba5 7. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 c2c3 d4c3 b2c3 b4a5 e4e5 r1bqk1nr/pppp1ppp/2n5/b3P3/2B5/2P2N2/P4PPP/RNBQK2R b KQkq - +C44 Scotch Game: Cochrane-Shumov Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Nxf7 Nxf7 7. Bxf7+ Kxf7 8. Qh5+ g6 9. Qxc5 d5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5 g8h6 g5f7 h6f7 c4f7 e8f7 d1h5 g7g6 h5c5 d7d5 r1bq3r/ppp2k1p/2n3p1/2Qp4/3pP3/8/PPP2PPP/RNB1K2R w KQ - +C44 Scotch Game: Göring Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 r1bqkbnr/pppp1ppp/2n5/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - +C44 Scotch Game: Göring Gambit, Bardeleben Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Bc4 Nf6 6. Nxc3 Bb4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 f1c4 g8f6 b1c3 f8b4 r1bqk2r/pppp1ppp/2n2n2/8/1bB1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - +C44 Scotch Game: Göring Gambit, Double Pawn Sacrifice 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Bc4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 f1c4 r1bqkbnr/pppp1ppp/2n5/8/2B1P3/2p2N2/PP3PPP/RNBQK2R b KQkq - +C44 Scotch Game: Göring Gambit, Main Line 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 b1c3 f8b4 r1bqk1nr/pppp1ppp/2n5/8/1b2P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - +C44 Scotch Game: Hanneken Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. O-O cxb2 7. Bxb2 Nf6 8. Ng5 O-O 9. e5 Nxe5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 c2c3 d4c3 e1g1 c3b2 c1b2 g8f6 f3g5 e8g8 e4e5 c6e5 r1bq1rk1/pppp1ppp/5n2/4n1N1/1bB5/8/PB3PPP/RN1Q1RK1 w - - +C44 Scotch Game: Haxo Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 r1bqk1nr/pppp1ppp/2n5/2b5/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Lolli Variation 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 e2e4 e7e5 g1f3 b8c6 d2d4 c6d4 r1bqkbnr/pppp1ppp/8/4p3/3nP3/5N2/PPP2PPP/RNBQKB1R w KQkq - +C44 Scotch Game: Napoleon Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 4. Nxd4 exd4 5. Bc4 e2e4 e7e5 g1f3 b8c6 d2d4 c6d4 f3d4 e5d4 f1c4 r1bqkbnr/pppp1ppp/8/8/2BpP3/8/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Relfsson Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1b5 r1bqkbnr/pppp1ppp/2n5/1B6/3pP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Scotch Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 r1bqkbnr/pppp1ppp/2n5/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Scotch Gambit, Advance Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e4e5 r1bqkb1r/pppp1ppp/2n2n2/4P3/2Bp4/5N2/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Scotch Gambit, Cochrane-Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O d6 6. c3 Bg4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 e1g1 d7d6 c2c3 c8g4 r2qk1nr/ppp2ppp/2np4/2b5/2BpP1b1/2P2N2/PP3PPP/RNBQ1RK1 w kq - +C44 Scotch Game: Scotch Gambit, Dubois Réti Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 r1bqkb1r/pppp1ppp/2n2n2/8/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Scotch Gambit, Göring Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 d5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d7d5 r1bqkbnr/ppp2ppp/2n5/3p4/3pP3/2P2N2/PP3PPP/RNBQKB1R w KQkq - +C44 Scotch Game: Scotch Gambit, Kingside Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 Ng4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e4e5 f6g4 r1bqkb1r/pppp1ppp/2n5/4P3/2Bp2n1/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Scotch Gambit, London Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 r1bqk1nr/pppp1ppp/2n5/8/1bBpP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C44 Scotch Game: Scotch Gambit, Sarratt Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5 r1bqk1nr/pppp1ppp/2n5/2b3N1/2BpP3/8/PPP2PPP/RNBQK2R b KQkq - +C44 Scotch Game: Sea-cadet Mate 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 d6 6. Bc4 Bg4 7. O-O Ne5 8. Nxe5 Bxd1 9. Bxf7+ Ke7 10. Nd5# e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 b1c3 d7d6 f1c4 c8g4 e1g1 c6e5 f3e5 g4d1 c4f7 e8e7 c3d5 r2q1bnr/ppp1kBpp/3p4/3NN3/4P3/8/PP3PPP/R1Bb1RK1 b - - +C44 Scotch Game: Vitzthum Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Qh5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5 g8h6 d1h5 r1bqk2r/pppp1ppp/2n4n/2b3NQ/2BpP3/8/PPP2PPP/RNB1K2R b KQkq - +C44 Tayler Opening 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d4 e2e4 e7e5 g1f3 b8c6 f1e2 g8f6 d2d4 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/5N2/PPP1BPPP/RNBQK2R b KQkq - +C45 Scotch Game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 r1bqkbnr/pppp1ppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 r1b1k1nr/pppp1ppp/2n5/1N6/1b2P2q/8/PPPB1PPP/RN1QKB1R b KQkq - +C45 Scotch Game: Alekhine Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 e4e5 r1bqkb1r/pppp1ppp/2n2n2/4P3/3N4/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Berger Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Nd2 Qxe4+ 7. Be2 Qxg2 8. Bf3 Qh3 9. Nxc7+ Kd8 10. Nxa8 Nf6 11. a3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 b1d2 h4e4 f1e2 e4g2 e2f3 g2h3 b5c7 e8d8 c7a8 g8f6 a2a3 N1bk3r/pp1p1ppp/2n2n2/8/1b6/P4B1q/1PPN1P1P/R1BQK2R b KQ - +C45 Scotch Game: Blumenfeld Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. Nb5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 d4b5 r1b1k1nr/pppp1ppp/2n2q2/1Nb5/4P3/4B3/PPP2PPP/RN1QKB1R b KQkq - +C45 Scotch Game: Braune Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Be3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 c1e3 r1b1kbnr/pppp1ppp/2n5/8/3NP2q/4B3/PPP2PPP/RN1QKB1R b KQkq - +C45 Scotch Game: Classical Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 r1bqk1nr/pppp1ppp/2n5/2b5/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Classical Variation, Blackburne Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Qd2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d1d2 r1b1k2r/ppppnppp/2n2q2/2b5/3NP3/2P1B3/PP1Q1PPP/RN2KB1R b KQkq - +C45 Scotch Game: Classical Variation, Intermezzo Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 d4c6 d8f6 r1b1k1nr/pppp1ppp/2N2q2/2b5/4P3/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Classical Variation, Millennium Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Qg6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 f6g6 r1b1k1nr/pppp1ppp/2n3q1/2b5/3NP3/2P1B3/PP3PPP/RN1QKB1R w KQkq - +C45 Scotch Game: Fraser Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nf3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4f3 r1b1kbnr/pppp1ppp/2n5/8/4P2q/5N2/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Ghulam-Kassim Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. Bd3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 c6d4 d1d4 d7d6 f1d3 r1bqkbnr/ppp2ppp/3p4/8/3QP3/3B4/PPP2PPP/RNB1K2R b KQkq - +C45 Scotch Game: Gottschall Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Qd2 d5 8. Nb5 Bxe3 9. Qxe3 O-O 10. Nxc7 Rb8 11. Nxd5 Nxd5 12. exd5 Nb4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d1d2 d7d5 d4b5 c5e3 d2e3 e8g8 b5c7 a8b8 c7d5 e7d5 e4d5 c6b4 1rb2rk1/pp3ppp/5q2/3P4/1n6/2P1Q3/PP3PPP/RN2KB1R w KQ - +C45 Scotch Game: Horwitz Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 r1b1kbnr/pppp1ppp/2n5/1N6/4P2q/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Horwitz Attack, Blackburne Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Qxd2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 d1d2 r1bk2nr/pppp1ppp/2n5/1N6/4q3/8/PPPQBPPP/RN3RK1 b - - +C45 Scotch Game: Horwitz Attack, McDonnell Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Nxd2 Qf4 10. a4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 b1d2 e4f4 a2a4 r1bk2nr/pppp1ppp/2n5/1N6/P4q2/8/1PPNBPPP/R2Q1RK1 b - - +C45 Scotch Game: Horwitz Attack, Vienna Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Nxd2 Qf4 10. c4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 b1d2 e4f4 c2c4 r1bk2nr/pppp1ppp/2n5/1N6/2P2q2/8/PP1NBPPP/R2Q1RK1 b - - +C45 Scotch Game: Malaniuk Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4+ e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8b4 r1bqk1nr/pppp1ppp/2n5/8/1b1NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Meitner Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Nc2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d4c2 r1b1k2r/ppppnppp/2n2q2/2b5/4P3/2P1B3/PPN2PPP/RN1QKB1R b KQkq - +C45 Scotch Game: Mieses Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 d4c6 b7c6 e4e5 r1bqkb1r/p1pp1ppp/2p2n2/4P3/8/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Modern Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nc3 Bb4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 b1c3 f8b4 r1b1k1nr/pppp1ppp/2n5/8/1b1NP2q/2N5/PPP2PPP/R1BQKB1R w KQkq - +C45 Scotch Game: Paulsen Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 f1b5 r1b1k2r/ppppnppp/2n2q2/1Bb5/3NP3/2P1B3/PP3PPP/RN1QK2R b KQkq - +C45 Scotch Game: Paulsen Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nf5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4f5 r1b1kbnr/pppp1ppp/2n5/5N2/4P2q/8/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Paulsen, Gunsberg Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 Nd8 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 f1b5 c6d8 r1bnk2r/ppppnppp/5q2/1Bb5/3NP3/2P1B3/PP3PPP/RN1QK2R w KQkq - +C45 Scotch Game: Potter Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 d4b3 r1bqk1nr/pppp1ppp/2n5/2b5/4P3/1N6/PPP2PPP/RNBQKB1R b KQkq - +C45 Scotch Game: Romanishin Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 d4b3 c5b4 r1bqk1nr/pppp1ppp/2n5/8/1b2P3/1N6/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Rosenthal Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Nxd2 Qg6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 b1d2 e4g6 r1bk2nr/pppp1ppp/2n3q1/1N6/8/8/PPPNBPPP/R2Q1RK1 w - - +C45 Scotch Game: Schmidt Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 r1bqkb1r/pppp1ppp/2n2n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 r1b1kbnr/pppp1ppp/2n5/8/3NP2q/8/PPP2PPP/RNBQKB1R w KQkq - +C45 Scotch Game: Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nc3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 b1c3 r1b1kbnr/pppp1ppp/2n5/8/3NP2q/2N5/PPP2PPP/R1BQKB1R b KQkq - +C45 Scotch Game: Tartakower Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nd2 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 d4c6 b7c6 b1d2 r1bqkb1r/p1pp1ppp/2p2n2/8/4P3/8/PPPN1PPP/R1BQKB1R b KQkq - +C46 Three Knights Opening 1. e4 e5 2. Nf3 Nc6 3. Nc3 e2e4 e7e5 g1f3 b8c6 b1c3 r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - +C46 Three Knights Opening 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 e2e4 e7e5 g1f3 b8c6 b1c3 f8b4 r1bqk1nr/pppp1ppp/2n5/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +C46 Three Knights Opening: Schlechter Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Nd5 Nf6 e2e4 e7e5 g1f3 b8c6 b1c3 f8b4 c3d5 g8f6 r1bqk2r/pppp1ppp/2n2n2/3Np3/1b2P3/5N2/PPPP1PPP/R1BQKB1R w KQkq - +C46 Three Knights Opening: Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 e2e4 e7e5 g1f3 b8c6 b1c3 g7g6 r1bqkbnr/pppp1p1p/2n3p1/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +C46 Three Knights Opening: Steinitz-Rosenthal Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. d4 exd4 5. Nd5 e2e4 e7e5 g1f3 b8c6 b1c3 g7g6 d2d4 e5d4 c3d5 r1bqkbnr/pppp1p1p/2n3p1/3N4/3pP3/5N2/PPP2PPP/R1BQKB1R b KQkq - +C46 Three Knights Opening: Winawer Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 f5 e2e4 e7e5 g1f3 b8c6 b1c3 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +C47 Four Knights Game 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - +C47 Four Knights Game: Gunsberg Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 a2a3 r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/P1N2N2/1PPP1PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Halloween Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f3e5 r1bqkb1r/pppp1ppp/2n2n2/4N3/4P3/2N5/PPPP1PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Halloween Gambit, Oldtimer Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Ng6 6. e5 Ng8 7. Bc4 Bb4 8. Qf3 f5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f3e5 c6e5 d2d4 e5g6 e4e5 f6g8 f1c4 f8b4 d1f3 f7f5 r1bqk1nr/pppp2pp/6n1/4Pp2/1bBP4/2N2Q2/PPP2PPP/R1B1K2R w KQkq f6 +C47 Four Knights Game: Halloween Gambit, Plasma Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Nc6 6. d5 Ne5 7. f4 Ng6 8. e5 Ng8 9. d6 cxd6 10. exd6 Qf6 11. Nb5 Rb8 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f3e5 c6e5 d2d4 e5c6 d4d5 c6e5 f2f4 e5g6 e4e5 f6g8 d5d6 c7d6 e5d6 d8f6 c3b5 a8b8 1rb1kbnr/pp1p1ppp/3P1qn1/1N6/5P2/8/PPP3PP/R1BQKB1R w KQk - +C47 Four Knights Game: Italian Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 b1c3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C47 Four Knights Game: Italian Variation, Noa Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Bxf7+ e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 b1c3 f6e4 c4f7 r1bqkb1r/pppp1Bpp/2n5/4p3/4n3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C47 Four Knights Game: Scotch Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Scotch Variation Accepted 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 r1bqkb1r/pppp1ppp/2n2n2/8/3pP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +C47 Four Knights Game: Scotch Variation, Belgrade Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 c3d5 r1bqkb1r/pppp1ppp/2n2n2/3N4/3pP3/5N2/PPP2PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Scotch Variation, Belgrade Gambit, Modern Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 Nxe4 6. Qe2 f5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 c3d5 f6e4 d1e2 f7f5 r1bqkb1r/pppp2pp/2n5/3N1p2/3pn3/5N2/PPP1QPPP/R1B1KB1R w KQkq - +C47 Four Knights Game: Scotch Variation, Krause Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 f8b4 f3e5 r1bqk2r/pppp1ppp/2n2n2/4N3/1b1PP3/2N5/PPP2PPP/R1BQKB1R b KQkq - +C47 Four Knights Game: Scotch Variation, Krause Gambit, Leonhardt Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 f8b4 f3e5 d8e7 r1b1k2r/ppppqppp/2n2n2/4N3/1b1PP3/2N5/PPP2PPP/R1BQKB1R w KQkq - +C47 Four Knights Game: Scotch Variation, Oxford Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. d5 Nd4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 f8b4 d4d5 c6d4 r1bqk2r/pppp1ppp/5n2/3Pp3/1b1nP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - +C47 Four Knights Game: Scotch Variation, Schmid Defense 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Nxe4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 f3d4 f6e4 r1bqkb1r/pppp1ppp/2n5/8/3Nn3/2N5/PPP2PPP/R1BQKB1R w KQkq - +C48 Four Knights Game: Bardeleben Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Nc6 9. e5 Bb4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8c5 e1g1 e8g8 f3e5 c6e5 d2d4 c5d6 f2f4 e5c6 e4e5 d6b4 r1bq1rk1/pppp1ppp/2n2n2/1B2P3/1b1P1P2/2N5/PPP3PP/R1BQ1RK1 w - - +C48 Four Knights Game: Marshall Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxe5 Bc5 6. O-O O-O e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 f3e5 f8c5 e1g1 e8g8 r1bq1rk1/pppp1ppp/5n2/1Bb1N3/3nP3/2N5/PPPP1PPP/R1BQ1RK1 w - - +C48 Four Knights Game: Ranken Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 a7a6 b5c6 r1bqkb1r/1ppp1ppp/p1B2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C48 Four Knights Game: Rubinstein Countergambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 b5e2 r1bqkb1r/pppp1ppp/5n2/4p3/3nP3/2N2N2/PPPPBPPP/R1BQK2R b KQkq - +C48 Four Knights Game: Rubinstein Countergambit, Henneberger Variation 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. O-O e2e4 e7e5 g1f3 g8f6 b1c3 b8c6 f1b5 c6d4 e1g1 r1bqkb1r/pppp1ppp/5n2/1B2p3/3nP3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq - +C48 Four Knights Game: Rubinstein Countergambit, Maróczy Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2 Nxf3+ 6. Bxf3 Bc5 7. O-O O-O 8. d3 d6 9. Na4 Bb6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 b5e2 d4f3 e2f3 f8c5 e1g1 e8g8 d2d3 d7d6 c3a4 c5b6 r1bq1rk1/ppp2ppp/1b1p1n2/4p3/N3P3/3P1B2/PPP2PPP/R1BQ1RK1 w - - +C48 Four Knights Game: Spanish Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C48 Four Knights Game: Spanish Variation, Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8c5 r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C48 Four Knights Game: Spanish Variation, Classical Variation, Marshall Gambit 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. Nxe5 O-O e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 b5a4 f8c5 f3e5 e8g8 r1bq1rk1/pppp1ppp/5n2/2b1N3/B2nP3/2N5/PPPP1PPP/R1BQK2R w KQ - +C48 Four Knights Game: Spanish Variation, Rubinstein Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 r1bqkb1r/pppp1ppp/5n2/1B2p3/3nP3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C48 Four Knights Game: Spanish Variation, Rubinstein Variation 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. Nxe5 Qe7 6. f4 e2e4 e7e5 g1f3 g8f6 b1c3 b8c6 f1b5 c6d4 f3e5 d8e7 f2f4 r1b1kb1r/ppppqppp/5n2/1B2N3/3nPP2/2N5/PPPP2PP/R1BQK2R b KQkq - +C48 Four Knights Game: Spanish Variation, Rubinstein Variation Accepted 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxd4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 f3d4 r1bqkb1r/pppp1ppp/5n2/1B2p3/3NP3/2N5/PPPP1PPP/R1BQK2R b KQkq - +C48 Four Knights Game: Spielmann Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 dxc6 6. Nxe5 Nxe4 7. Nxe4 Qd4 8. O-O Qxe5 9. Re1 Be6 10. d4 Qd5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 a7a6 b5c6 d7c6 f3e5 f6e4 c3e4 d8d4 e1g1 d4e5 f1e1 c8e6 d2d4 e5d5 r3kb1r/1pp2ppp/p1p1b3/3q4/3PN3/8/PPP2PPP/R1BQR1K1 w kq - +C49 Four Knights Game: Alatortsev Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Qe7 7. Ne2 d5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d8e7 c3e2 d7d5 r1b2rk1/ppp1qppp/2n2n2/1B1pp3/1b2P3/3P1N2/PPP1NPPP/R1BQ1RK1 w - - +C49 Four Knights Game: Double Spanish 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 r1bqk2r/pppp1ppp/2n2n2/1B2p3/1b2P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C49 Four Knights Game: Double Spanish 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 r1bq1rk1/pppp1ppp/2n2n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 b - - +C49 Four Knights Game: Gunsberg Counterattack 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. Nd5 Nxd5 7. exd5 e4 e2e4 e7e5 g1f3 g8f6 b1c3 b8c6 f1b5 f8b4 e1g1 e8g8 c3d5 f6d5 e4d5 e5e4 r1bq1rk1/pppp1ppp/2n5/1B1P4/1b2p3/5N2/PPPP1PPP/R1BQ1RK1 w - - +C49 Four Knights Game: Janowski Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3 b2c3 d7d6 f1e1 r1bq1rk1/ppp2ppp/2np1n2/1B2p3/4P3/2PP1N2/P1P2PPP/R1BQR1K1 b - - +C49 Four Knights Game: Nimzowitsch Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Bxc6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 b5c6 r1bq1rk1/pppp1ppp/2B2n2/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQ1RK1 b - - +C49 Four Knights Game: Spanish Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3 r1bq1rk1/pppp1ppp/2n2n2/1B2p3/4P3/2bP1N2/PPP2PPP/R1BQ1RK1 w - - +C49 Four Knights Game: Spanish Variation, Symmetrical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 w - - +C49 Four Knights Game: Spanish Variation, Symmetrical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 b4c3 b2c3 d8e7 f1e1 c6d8 d3d4 c8g4 r2n1rk1/ppp1qppp/3p1n2/1B2p1B1/3PP1b1/2P2N2/P1P2PPP/R2QR1K1 w - - +C49 Four Knights Game: Spanish Variation, Symmetrical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c6e7 r1bq1rk1/ppp1nppp/3p1n2/1B2p1B1/1b2P3/2NP1N2/PPP2PPP/R2Q1RK1 w - - +C49 Four Knights Game: Spanish Variation, Symmetrical Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Ne2 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c3e2 r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/3P1N2/PPP1NPPP/R1BQ1RK1 b - - +C49 Four Knights Game: Svenonius Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3 b2c3 d7d5 r1bq1rk1/ppp2ppp/2n2n2/1B1pp3/4P3/2PP1N2/P1P2PPP/R1BQ1RK1 w - - +C49 Four Knights Game: Symmetrical, Blake Variation 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7 8. Nh4 c6 9. Bc4 d5 10. Bb3 Qd6 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c6e7 f3h4 c7c6 b5c4 d6d5 c4b3 d8d6 r1b2rk1/pp2nppp/2pq1n2/3pp1B1/1b2P2N/1BNP4/PPP2PPP/R2Q1RK1 w - - +C49 Four Knights Game: Symmetrical, Metger Unpin 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 b4c3 b2c3 d8e7 r1b2rk1/ppp1qppp/2np1n2/1B2p1B1/4P3/2PP1N2/P1P2PPP/R2Q1RK1 w - - +C49 Four Knights Game: Symmetrical, Tarrasch Variation 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Be6 e2e4 e7e5 g1f3 g8f6 b1c3 b8c6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c8e6 r2q1rk1/ppp2ppp/2npbn2/1B2p1B1/1b2P3/2NP1N2/PPP2PPP/R2Q1RK1 w - - +C50 Blackburne Shilling Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 4. Nxe5 Qg5 5. Nxf7 Qxg2 6. Rf1 Qxe4+ 7. Be2 Nf3# e2e4 e7e5 g1f3 b8c6 f1c4 c6d4 f3e5 d8g5 e5f7 g5g2 h1f1 g2e4 c4e2 d4f3 r1b1kbnr/pppp1Npp/8/8/4q3/5n2/PPPPBP1P/RNBQKR2 w Qkq - +C50 Four Knights Game: Italian Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b1c3 g8f6 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C50 Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C50 Italian Game 1. e4 e5 2. Nf3 Nc6 3. Bc4 e2e4 e7e5 g1f3 b8c6 f1c4 r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C50 Italian Game: Anti-Fried Liver Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 e2e4 e7e5 g1f3 b8c6 f1c4 h7h6 r1bqkbnr/pppp1pp1/2n4p/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C50 Italian Game: Classical Variation, Albin Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. c3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 e1g1 g8f6 c2c3 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQ1RK1 b kq - +C50 Italian Game: Deutz Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 e1g1 g8f6 d2d4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2BPP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C50 Italian Game: Giuoco Pianissimo 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - +C50 Italian Game: Giuoco Pianissimo, Canal Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 d6 6. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6 b1c3 d7d6 c1g5 r1bqk2r/ppp2ppp/2np1n2/2b1p1B1/2B1P3/2NP1N2/PPP2PPP/R2QK2R b KQkq - +C50 Italian Game: Giuoco Pianissimo, Dubois Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 f5 5. Ng5 f4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 f7f5 f3g5 f5f4 r1bqk1nr/pppp2pp/2n5/2b1p1N1/2B1Pp2/3P4/PPP2PPP/RNBQK2R w KQkq - +C50 Italian Game: Giuoco Pianissimo, Italian Four Knights Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6 b1c3 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2NP1N2/PPP2PPP/R1BQK2R b KQkq - +C50 Italian Game: Giuoco Pianissimo, Lucchini Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 f5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 f7f5 r1bqk1nr/pppp2pp/2n5/2b1pp2/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQkq - +C50 Italian Game: Giuoco Pianissimo, Normal 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d3 f8c5 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQkq - +C50 Italian Game: Hungarian Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 e2e4 e7e5 g1f3 b8c6 f1c4 f8e7 r1bqk1nr/ppppbppp/2n5/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C50 Italian Game: Hungarian Defense, Tartakower Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 Nf6 6. e5 Ne4 e2e4 e7e5 g1f3 b8c6 f1c4 f8e7 d2d4 e5d4 c2c3 g8f6 e4e5 f6e4 r1bqk2r/ppppbppp/2n5/4P3/2Bpn3/2P2N2/PP3PPP/RNBQK2R w KQkq - +C50 Italian Game: Jerome Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+ e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c4f7 r1bqk1nr/pppp1Bpp/2n5/2b1p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C50 Italian Game: Rosentreter Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d4 r1bqk1nr/pppp1ppp/2n5/2b1p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C50 Italian Game: Rousseau Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 e2e4 e7e5 g1f3 b8c6 f1c4 f7f5 r1bqkbnr/pppp2pp/2n5/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C50 Italian Game: Schilling-Kostic Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 e2e4 e7e5 g1f3 b8c6 f1c4 c6d4 r1bqkbnr/pppp1ppp/8/4p3/2BnP3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 r1bqk1nr/pppp1ppp/2n5/2b1p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R b KQkq - +C51 Italian Game: Evans Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 r2qk1nr/ppp2ppp/1bnp4/8/2BPP1b1/2N2N2/P4PPP/R1BQ1RK1 w kq - +C51 Italian Game: Evans Gambit Accepted 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 r1bqk1nr/pppp1ppp/2n5/4p3/1bB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 r1bqk1nr/pppp1ppp/1bn5/4p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 a2a4 r1bqk1nr/pppp1ppp/1bn5/4p3/PPB1P3/5N2/2PP1PPP/RNBQK2R b KQkq - +C51 Italian Game: Evans Gambit Declined, Cordel Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. Bb2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 c1b2 r1bqk1nr/pppp1ppp/1bn5/4p3/1PB1P3/5N2/PBPP1PPP/RN1QK2R b KQkq - +C51 Italian Game: Evans Gambit Declined, Hicken Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5 7. Qf3 Qxe5 8. Qxf7+ Kd8 9. Bb2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 d1f3 g5e5 f3f7 e8d8 c1b2 r1bk2nr/pppp1Qpp/1b6/nP2q3/2B1P3/8/PBPP1PPP/RN2K2R b KQ - +C51 Italian Game: Evans Gambit Declined, Hirschbach Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 r1b1k1nr/pppp1ppp/1b6/nP2N1q1/2B1P3/8/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit Declined, Lange Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Nh6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 g8h6 r1bqk2r/pppp1ppp/1b5n/nP2N3/2B1P3/8/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit Declined, Pavlov Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Nh6 7. d4 d6 8. Bxh6 dxe5 9. Bxg7 Rg8 10. Bxf7+ Kxf7 11. Bxe5 Qg5 12. Nd2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 g8h6 d2d4 d7d6 c1h6 d6e5 h6g7 h8g8 c4f7 e8f7 g7e5 d8g5 b1d2 r1b3r1/ppp2k1p/1b6/nP2B1q1/3PP3/8/P1PN1PPP/R2QK2R b KQ - +C51 Italian Game: Evans Gambit Declined, Showalter Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 a6 6. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 a2a4 a7a6 b1c3 r1bqk1nr/1ppp1ppp/pbn5/4p3/PPB1P3/2N2N2/2PP1PPP/R1BQK2R b KQkq - +C51 Italian Game: Evans Gambit Declined, Vasquez Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Qg5 7. Bxf7+ Ke7 8. Qh5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 c4f7 e8e7 d1h5 r1b3nr/ppppkBpp/1b6/nP2N1qQ/4P3/8/P1PP1PPP/RNB1K2R b KQ - +C51 Italian Game: Evans Gambit, Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4e7 r1bqk1nr/ppppbppp/2n5/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Anderssen Variation, Cordel Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 Na5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4e7 d2d4 c6a5 r1bqk1nr/ppppbppp/8/n3p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Fontaine Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 b5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 b7b5 r1bqk1nr/p1pp1ppp/2n5/1pb1p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Fraser Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4 r2qk1nr/ppp2ppp/1bnp4/8/Q1BPP1b1/2N2N2/P4PPP/R1B2RK1 b kq - +C51 Italian Game: Evans Gambit, Fraser-Mortimer Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4 Bd7 11. Qb3 Na5 12. Bxf7+ Kf8 13. Qc2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4 g4d7 a4b3 c6a5 c4f7 e8f8 b3c2 r2q1knr/pppb1Bpp/1b1p4/n7/3PP3/2N2N2/P1Q2PPP/R1B2RK1 b - - +C51 Italian Game: Evans Gambit, Göring Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Na5 10. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c6a5 c1g5 r1bqk1nr/ppp2ppp/1b1p4/n5B1/2BPP3/2N2N2/P4PPP/R2Q1RK1 b kq - +C51 Italian Game: Evans Gambit, Harding Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. cxd4 Bb4+ 8. Bd2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 c3d4 c5b4 c1d2 r1bqk1nr/pppp1ppp/2n5/8/1bBPP3/5N2/P2B1PPP/RN1QK2R b KQkq - +C51 Italian Game: Evans Gambit, Hein Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 d5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 d7d5 r1bqk1nr/ppp2ppp/2n5/2bpp3/1PB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Mayet Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bf8 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4f8 r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, McDonnell Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, McDonnell Defense, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/P4PPP/RNBQ1RK1 w kq - +C51 Italian Game: Evans Gambit, Morphy Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d7d6 c3d4 a5b6 b1c3 r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/2N2N2/P4PPP/R1BQ1RK1 b kq - +C51 Italian Game: Evans Gambit, Mortimer-Evans Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4 Bd7 11. Qb3 Na5 12. Bxf7+ Kf8 13. Qc2 Kxf7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4 g4d7 a4b3 c6a5 c4f7 e8f8 b3c2 f8f7 r2q2nr/pppb1kpp/1b1p4/n7/3PP3/2N2N2/P1Q2PPP/R1B2RK1 w - - +C51 Italian Game: Evans Gambit, Paulsen Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. d5 Na5 10. Bb2 Ne7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 d4d5 c6a5 c1b2 g8e7 r1bqk2r/ppp1nppp/1b1p4/n2P4/2B1P3/5N2/PB3PPP/RN1Q1RK1 w kq - +C51 Italian Game: Evans Gambit, Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Na5 10. Bg5 f6 11. Be3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c6a5 c1g5 f7f6 g5e3 r1bqk1nr/ppp3pp/1b1p1p2/n7/2BPP3/2N1BN2/P4PPP/R2Q1RK1 b kq - +C51 Italian Game: Evans Gambit, Stone-Ware Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bd6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4d6 r1bqk1nr/pppp1ppp/2nb4/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C51 Italian Game: Evans Gambit, Ulvestad Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. d5 Na5 10. Bb2 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 d4d5 c6a5 c1b2 r1bqk1nr/ppp2ppp/1b1p4/n2P4/2B1P3/5N2/PB3PPP/RN1Q1RK1 b kq - +C52 Italian Game: Evans Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 r1bqk1nr/ppp2ppp/2np4/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Alapin-Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bg4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 c8g4 r2qk1nr/ppp2ppp/2np4/b3p3/2BPP1b1/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Anderssen Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O Nf6 7. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 g8f6 d2d4 e5d4 r1bqk2r/pppp1ppp/2n2n2/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Bronstein Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 r1bqk1nr/ppp2ppp/2np4/b3p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Compromised Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3 r1bqk1nr/pppp1ppp/2n5/b7/2B1P3/2p2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Compromised Defense, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 8. Qb3 Qf6 9. e5 Qg6 10. Nxc3 Nge7 11. Ba3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3 d1b3 d8f6 e4e5 f6g6 b1c3 g8e7 c1a3 r1b1k2r/ppppnppp/2n3q1/b3P3/2B5/BQN2N2/P4PPP/R4RK1 b kq - +C52 Italian Game: Evans Gambit, Compromised Defense, Potter Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 8. Qb3 Qf6 9. e5 Qg6 10. Nxc3 Nge7 11. Rd1 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3 d1b3 d8f6 e4e5 f6g6 b1c3 g8e7 f1d1 r1b1k2r/ppppnppp/2n3q1/b3P3/2B5/1QN2N2/P4PPP/R1BR2K1 b kq - +C52 Italian Game: Evans Gambit, Dufresne Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O d3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4d3 r1bqk1nr/pppp1ppp/2n5/b7/2B1P3/2Pp1N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Johner Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O b5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 b7b5 r1bqk1nr/p1pp1ppp/2n5/bp6/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Laroche Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 Nf6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 g8f6 r1bqk2r/pppp1ppp/2n2n2/b3p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Lasker Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 a5b6 r1bqk1nr/ppp2ppp/1bnp4/4p3/2BPP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Leonhardt Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 b5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 b7b5 r1bqk1nr/p1pp1ppp/2n5/bp2p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Levenfish Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 Qd7 8. dxe5 dxe5 9. O-O Bb6 10. Ba3 Na5 11. Nxe5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 d1b3 d8d7 d4e5 d6e5 e1g1 a5b6 c1a3 c6a5 f3e5 r1b1k1nr/pppq1ppp/1b6/n3N3/2B1P3/BQP5/P4PPP/RN3RK1 b kq - +C52 Italian Game: Evans Gambit, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 r1bqk1nr/pppp1ppp/2n5/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Mieses Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O Nge7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 g8e7 r1bqk2r/ppppnppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Pierce Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 r1bqk1nr/pppp1ppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQK2R w KQkq - +C52 Italian Game: Evans Gambit, Richardson Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O Nf6 7. d4 O-O 8. Nxe5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 g8f6 d2d4 e8g8 f3e5 r1bq1rk1/pppp1ppp/2n2n2/b3N3/2BPP3/2P5/P4PPP/RNBQ1RK1 b - - +C52 Italian Game: Evans Gambit, Sanders-Alapin Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bd7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 c8d7 r2qk1nr/pppb1ppp/2np4/b3p3/2BPP3/2P2N2/P4PPP/RNBQ1RK1 w kq - +C52 Italian Game: Evans Gambit, Slow Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 r1bqk1nr/pppp1ppp/2n5/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQ1RK1 b kq - +C52 Italian Game: Evans Gambit, Sokolsky Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 c1g5 r1bqk1nr/ppp2ppp/2np4/b3p1B1/2BPP3/2P2N2/P4PPP/RN1QK2R b KQkq - +C52 Italian Game: Evans Gambit, Tartakower Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 d1b3 r1bqk1nr/ppp2ppp/2np4/b3p3/2BPP3/1QP2N2/P4PPP/RNB1K2R b KQkq - +C52 Italian Game: Evans Gambit, Waller Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O d6 8. Qb3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d7d6 d1b3 r1bqk1nr/ppp2ppp/2np4/b7/2BpP3/1QP2N2/P4PPP/RNB2RK1 b kq - +C53 Italian Game: Bird's Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. b4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 b2b4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/1PB1P3/2P2N2/P2P1PPP/RNBQK2R b KQkq - +C53 Italian Game: Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C53 Italian Game: Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Alexandre Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 f5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 f7f5 r1bqk1nr/pppp2pp/2n5/2b1pp2/2B1P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Center Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2BPP3/2P2N2/PP3PPP/RNBQK2R b KQkq - +C53 Italian Game: Classical Variation, Center Holding Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 r1b1k1nr/ppppqppp/1bn5/4p3/2BPP3/2P2N2/PP3PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Closed Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 r1b1k1nr/ppppqppp/2n5/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Giuoco Pianissimo 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d3 r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2PP1N2/PP3PPP/RNBQK2R b KQkq - +C53 Italian Game: Classical Variation, Giuoco Pianissimo, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O O-O 7. Re1 a6 8. Bb3 Ba7 9. h3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d3 d7d6 e1g1 e8g8 f1e1 a7a6 c4b3 c5a7 h2h3 r1bq1rk1/bpp2ppp/p1np1n2/4p3/4P3/1BPP1N1P/PP3PP1/RNBQR1K1 b - - +C53 Italian Game: Classical Variation, Greco Gambit 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 Nf6 6. e5 d5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 c2c3 g8f6 e4e5 d7d5 r1bqk2r/ppp2ppp/2n2n2/2bpP3/2Bp4/2P2N2/PP3PPP/RNBQK2R w KQkq d6 +C53 Italian Game: Classical Variation, Greco Gambit, Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb4+ e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5 c4b5 f6e4 c3d4 c5b4 r1bqk2r/ppp2ppp/2n5/1B1pP3/1b1Pn3/5N2/PP3PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, La Bourdonnais Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 exd4 6. cxd4 Bb6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d7d6 d2d4 e5d4 c3d4 c5b6 r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/PP3PPP/RNBQK2R w KQkq - +C53 Italian Game: Classical Variation, Tarrasch Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. O-O d6 7. a4 a6 8. h3 Nf6 9. Re1 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 e1g1 d7d6 a2a4 a7a6 h2h3 g8f6 f1e1 r1b1k2r/1pp1qppp/pbnp1n2/4p3/P1BPP3/2P2N1P/1P3PP1/RNBQR1K1 b kq - +C53 Italian Game: Giuoco Piano, Eisinger Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. d5 Nb8 7. d6 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 d4d5 c6b8 d5d6 rnb1k1nr/ppppqppp/1b1P4/4p3/2B1P3/2P2N2/PP3PPP/RNBQK2R b KQkq - +C53 Italian Game: Giuoco Piano, Ghulam-Kassim Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. Bd5 Nxf2 8. Kxf2 dxc3+ 9. Kg3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 f6e4 c4d5 e4f2 e1f2 d4c3 f2g3 r1bqk2r/pppp1ppp/2n5/2bBP3/8/2p2NK1/PP4PP/RNBQ3R b kq - +C53 Italian Game: Giuoco Piano, Mestel Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 c1g5 r1b1k1nr/ppppqppp/1bn5/4p1B1/2BPP3/2P2N2/PP3PPP/RN1QK2R b KQkq - +C53 Italian Game: Scotch Gambit, Walbrodt-Baird Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. O-O e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e1g1 r1bqk2r/pppp1ppp/2n2n2/2b5/2BpP3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +C54 Italian Game: Classical Variation, Greco Gambit, Greco Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3 r1bqk2r/pppp1ppp/2n5/8/1bBP4/2n2N2/PP3PPP/R1BQ1RK1 w kq - +C54 Italian Game: Classical Variation, Greco Gambit, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 r1bqk2r/pppp1ppp/2n5/8/2BPn3/2b2N2/PP3PPP/R1BQ1RK1 w kq - +C54 Italian Game: Classical Variation, Greco Gambit, Moeller-Bayonet Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. g4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5 c3f6 f1e1 c6e7 e1e4 d7d6 g2g4 r1bqk2r/ppp1nppp/3p1b2/3P4/2B1R1P1/5N2/PP3P1P/R1BQ2K1 b kq - +C54 Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5 r1bqk2r/pppp1ppp/2n5/3P4/2B1n3/2b2N2/PP3PPP/R1BQ1RK1 b kq - +C54 Italian Game: Classical Variation, Greco Gambit, Traditional Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 r1bqk2r/pppp1ppp/2n2n2/2b5/2BPP3/5N2/PP3PPP/RNBQK2R b KQkq - +C54 Italian Game: Giuoco Piano, Aitken Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3 9. bxc3 Bxc3 10. Ba3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3 b2c3 b4c3 c1a3 r1bqk2r/pppp1ppp/2n5/8/2BP4/B1b2N2/P4PPP/R2Q1RK1 b kq - +C54 Italian Game: Giuoco Piano, Bernstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Nxc3 9. bxc3 Bxc3 10. Qb3 d5 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3 b2c3 b4c3 d1b3 d7d5 r1bqk2r/ppp2ppp/2n5/3p4/2BP4/1Qb2N2/P4PPP/R1B2RK1 w kq - +C54 Italian Game: Giuoco Piano, Cracow Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Kf1 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 e1f1 r1bqk2r/pppp1ppp/2n2n2/8/1bBPP3/5N2/PP3PPP/RNBQ1K1R b kq - +C54 Italian Game: Giuoco Piano, Greco's Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 r1bqk2r/pppp1ppp/2n2n2/8/1bBPP3/2N2N2/PP3PPP/R1BQK2R b KQkq - +C54 Italian Game: Giuoco Piano, Krause Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ d5 11. Ne5+ Kf6 12. f3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 c1d2 f6e4 d2b4 c6b4 c4f7 e8f7 d1b3 d7d5 f3e5 f7f6 f2f3 r1bq3r/ppp3pp/5k2/3pN3/1n1Pn3/1Q3P2/PP4PP/RN2K2R b KQ - +C54 Italian Game: Giuoco Piano, Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. bxc3 d5 10. Ba3 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 b2c3 d7d5 c1a3 r1bqk2r/ppp2ppp/2n5/3p4/2BPn3/B1P2N2/P4PPP/R2Q1RK1 b kq - +C54 Italian Game: Giuoco Piano, Therkatz-Herzog Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. Bg5 Bxg5 13. Nxg5 O-O 14. Nxh7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5 c3f6 f1e1 c6e7 e1e4 d7d6 c1g5 f6g5 f3g5 e8g8 g5h7 r1bq1rk1/ppp1nppN/3p4/3P4/2B1R3/8/PP3PPP/R2Q2K1 b - - +C55 Italian Game: Giuoco Piano 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 d6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 d7d6 r1bqk2r/ppp2ppp/3p1n2/4p1B1/2BnP3/8/PPP2PPP/RN1Q1RK1 w kq - +C55 Italian Game: Giuoco Piano, Holzhausen Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 d6 8. f4 Qe7 9. fxe5 dxe5 10. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 d7d6 f2f4 d8e7 f4e5 d6e5 b1c3 r1b1k2r/ppp1qppp/5n2/4p1B1/2BnP3/2N5/PPP3PP/R2Q1RK1 b kq - +C55 Italian Game: Giuoco Piano, Rosentreter Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 h6 8. Bh4 g5 9. f4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 h7h6 g5h4 g7g5 f2f4 r1bqk2r/pppp1p2/5n1p/4p1p1/2BnPP1B/8/PPP3PP/RN1Q1RK1 b kq - +C55 Italian Game: Scotch Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 r1bqkb1r/pppp1ppp/2n2n2/8/2BpP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C55 Italian Game: Scotch Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 d6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 d7d6 r1bqkb1r/ppp2ppp/2np1n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C55 Italian Game: Scotch Gambit Declined 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 Bd6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 f8d6 r1bqk2r/pppp1ppp/2nb1n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C55 Italian Game: Scotch Gambit, Janowski Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O d6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 d7d6 r1bqkb1r/ppp2ppp/2np1n2/8/2BpP3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C55 Italian Game: Scotch Gambit, Max Lange Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Bc5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8c5 r1bqk2r/pppp1ppp/2n2n2/2b5/2BpP3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C55 Italian Game: Scotch Gambit, Max Lange Attack Accepted 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d4 exd4 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. fxg7 e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 e1g1 g8f6 d2d4 e5d4 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f6g7 r2qk2r/ppp2pPp/2n1b3/2b5/2pp4/5N2/PPP2PPP/RNBQR1K1 b kq - +C55 Italian Game: Scotch Gambit, Max Lange Attack, Long Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. Nce4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 c3e4 r3k2r/ppp2ppp/2n1bP2/2b2qN1/2ppN3/8/PPP2PPP/R1BQR1K1 b kq - +C55 Italian Game: Scotch Gambit, Max Lange Attack, Spielmann Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Bc5 6. e5 Ng4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8c5 e4e5 f6g4 r1bqk2r/pppp1ppp/2n5/2b1P3/2Bp2n1/5N2/PPP2PPP/RNBQ1RK1 w kq - +C55 Italian Game: Scotch Gambit, de Riviere Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Be7 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8e7 r1bqk2r/ppppbppp/2n2n2/8/2BpP3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C55 Italian Game: Two Knights Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C55 Italian Game: Two Knights Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 Nxe4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 f6e4 r1bqkb1r/pppp1ppp/2n5/4p3/2BPn3/5N2/PPP2PPP/RNBQK2R w KQkq - +C55 Italian Game: Two Knights Defense, Keidansky Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bc5 8. Nxc6 Bxf2+ 9. Kf1 Qh4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e4e5 d7d5 c4b5 f6e4 f3d4 f8c5 d4c6 c5f2 e1f1 d8h4 r1b1k2r/ppp2ppp/2N5/1B1pP3/4n2q/8/PPP2bPP/RNBQ1K1R w kq - +C55 Italian Game: Two Knights Defense, Max Lange Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Bc5 6. e5 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f8c5 e4e5 r1bqk2r/pppp1ppp/2n2n2/2b1P3/2Bp4/5N2/PPP2PPP/RNBQ1RK1 b kq - +C55 Italian Game: Two Knights Defense, Max Lange Attack, Berger Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. g4 Qg6 12. Nce4 Bb6 13. f4 O-O-O e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 g2g4 f5g6 c3e4 c5b6 f2f4 e8c8 2kr3r/ppp2ppp/1bn1bPq1/6N1/2ppNPP1/8/PPP4P/R1BQR1K1 w - - +C55 Italian Game: Two Knights Defense, Max Lange Attack, Krause Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 Ng4 7. c3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 f6g4 c2c3 r1bqk2r/pppp1ppp/2n5/2b1P3/2Bp2n1/2P2N2/PP3PPP/RNBQ1RK1 b kq - +C55 Italian Game: Two Knights Defense, Max Lange Attack, Loman Defense 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O Nf6 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 g6 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 e1g1 g8f6 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 g7g6 r2qk2r/ppp2p1p/2n1bPp1/2b3N1/2pp4/8/PPP2PPP/RNBQR1K1 w kq - +C55 Italian Game: Two Knights Defense, Max Lange Attack, Rubinstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. Nce4 Bf8 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 c3e4 c5f8 r3kb1r/ppp2ppp/2n1bP2/5qN1/2ppN3/8/PPP2PPP/R1BQR1K1 w kq - +C55 Italian Game: Two Knights Defense, Modern Bishop's Opening 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d3 r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - +C55 Italian Game: Two Knights Defense, Open Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 r1bqkb1r/pppp1ppp/2n2n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C55 Italian Game: Two Knights Defense, Perreux Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. Ng5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 f3g5 r1bqkb1r/pppp1ppp/2n2n2/6N1/2BpP3/8/PPP2PPP/RNBQK2R b KQkq - +C56 Italian Game: Scotch Gambit, Anderssen Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 f1e1 d7d5 c4d5 d8d5 b1c3 r1b1kb1r/ppp2ppp/2n5/3q4/3pn3/2N2N2/PPP2PPP/R1BQR1K1 b kq - +C56 Italian Game: Scotch Gambit, Anderssen Attack, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Qd5 11. Bg5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 f1e1 d7d5 c4d5 d8d5 b1c3 d5a5 c3e4 c8e6 c1d2 a5d5 d2g5 r3kb1r/ppp2ppp/2n1b3/3q2B1/3pN3/5N2/PPP2PPP/R2QR1K1 b kq - +C56 Italian Game: Scotch Gambit, Canal Variation 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Nxe4 6. Re1 d5 7. Nc3 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f6e4 f1e1 d7d5 b1c3 r1bqkb1r/ppp2ppp/2n5/3p4/2Bpn3/2N2N2/PPP2PPP/R1BQR1K1 b kq - +C56 Italian Game: Scotch Gambit, Double Gambit Accepted 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 r1bqkb1r/pppp1ppp/2n5/8/2Bpn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C56 Italian Game: Scotch Gambit, Nakhmanson Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Nc3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 b1c3 r1bqkb1r/pppp1ppp/2n5/8/2Bpn3/2N2N2/PPP2PPP/R1BQ1RK1 b kq - +C56 Italian Game: Two Knights Defense, Yurdansky Attack 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bg5 h6 11. Bh4 g5 12. Nf6+ Ke7 13. b4 e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6 e1g1 f6e4 f1e1 d7d5 c4d5 d8d5 b1c3 d5a5 c3e4 c8e6 c1g5 h7h6 g5h4 g7g5 e4f6 e8e7 b2b4 r4b1r/ppp1kp2/2n1bN1p/q5p1/1P1p3B/5N2/P1P2PPP/R2QR1K1 b - - +C57 Italian Game: Two Knights Defense, Fegatello Attack, Leonhardt Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Nb4 9. Qe4 c6 10. a3 Na6 11. d4 Nc7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7 e8f7 d1f3 f7e6 b1c3 c6b4 f3e4 c7c6 a2a3 b4a6 d2d4 a6c7 r1bq1b1r/ppn3pp/2p1k3/3np3/2BPQ3/P1N5/1PP2PPP/R1B1K2R w KQ - +C57 Italian Game: Two Knights Defense, Fried Liver Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7 r1bqkb1r/ppp2Npp/2n5/3np3/2B5/8/PPPP1PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Fritz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6d4 r1bqkb1r/ppp2ppp/5n2/3Pp1N1/2Bn4/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Fritz, Gruber Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. Ne4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6d4 c2c3 b7b5 c4f1 f6d5 g5e4 r1bqkb1r/p1p2ppp/8/1p1np3/3nN3/2P5/PP1P1PPP/RNBQKB1R b KQkq - +C57 Italian Game: Two Knights Defense, Kloss Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nb4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6b4 r1bqkb1r/ppp2ppp/5n2/3Pp1N1/1nB5/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Knight Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 r1bqkb1r/pppp1ppp/2n2n2/4p1N1/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Knight Attack, Normal Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 r1bqkb1r/ppp2ppp/2n2n2/3pp1N1/2B1P3/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Lolli Attack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 d2d4 r1bqkb1r/ppp2ppp/2n5/3np1N1/2BP4/8/PPP2PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Pincus Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4 Bb4+ e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 d2d4 f8b4 r1bqk2r/ppp2ppp/2n5/3np1N1/1bBP4/8/PPP2PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Ponziani-Steinitz Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Nxe4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f6e4 r1bqkb1r/pppp1ppp/2n5/4p1N1/2B1n3/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Traxler Counterattack 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 r1bqk2r/pppp1ppp/2n2n2/2b1p1N1/2B1P3/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Traxler Counterattack, Bishop Sacrifice Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Bxf7+ e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 c4f7 r1bqk2r/pppp1Bpp/2n2n2/2b1p1N1/4P3/8/PPPP1PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Traxler Counterattack, King March Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 Bxf2+ 6. Kxf2 Nxe4+ 7. Ke3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 g5f7 c5f2 e1f2 f6e4 f2e3 r1bqk2r/pppp1Npp/2n5/4p3/2B1n3/4K3/PPPP2PP/RNBQ3R b kq - +C57 Italian Game: Two Knights Defense, Traxler Counterattack, Knight Sacrifice Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 g5f7 r1bqk2r/pppp1Npp/2n2n2/2b1p3/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq - +C57 Italian Game: Two Knights Defense, Traxler Variation, Trencianske-Teplice Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Bxf7+ Ke7 6. d4 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5 c4f7 e8e7 d2d4 r1bq3r/ppppkBpp/2n2n2/2b1p1N1/3PP3/8/PPP2PPP/RNBQK2R b KQ - +C57 Italian Game: Two Knights Defense, Ulvestad Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 b7b5 r1bqkb1r/p1p2ppp/2n2n2/1p1Pp1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq - +C57 Italian Game: Two Knights Defense, Ulvestad Variation, Kurkin Gambit 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 6. Bf1 h6 7. Nxf7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 b7b5 c4f1 h7h6 g5f7 r1bqkb1r/p1p2Np1/2n2n1p/1p1Pp3/8/8/PPPP1PPP/RNBQKB1R b KQkq - +C58 Italian Game: Two Knights Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 r1bqkb1r/p4ppp/2p2n2/n3p1N1/8/8/PPPPBPPP/RNBQK2R b KQkq - +C58 Italian Game: Two Knights Defense, Blackburne Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 cxb5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 c6b5 r1bqkb1r/p4ppp/5n2/np2p1N1/8/5Q2/PPPP1PPP/RNB1K2R w KQkq - +C58 Italian Game: Two Knights Defense, Colman Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Rb8 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 a8b8 1rbqkb1r/p4ppp/2p2n2/nB2p1N1/8/5Q2/PPPP1PPP/RNB1K2R w KQk - +C58 Italian Game: Two Knights Defense, Maróczy Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. Qe2 Nxc4 9. dxc4 Be7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 h7h6 g5f3 e5e4 d1e2 a5c4 d3c4 f8e7 r1bqk2r/ppp1bpp1/5n1p/3P4/2P1p3/5N2/PPP1QPPP/RNB1K2R w KQkq - +C58 Italian Game: Two Knights Defense, Paoli Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Qc7 9. Bd3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 d8c7 b5d3 r1b1kb1r/p1q2ppp/2p2n2/n3p1N1/8/3B1Q2/PPPP1PPP/RNB1K2R b KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 r1bqkb1r/ppp2ppp/5n2/n2Pp1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 r1bqkb1r/ppp2ppp/5n2/nB1Pp1N1/8/8/PPPP1PPP/RNBQK2R b KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense, Bogoljubov Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 r1bqkb1r/p4ppp/2p2n2/nB2p1N1/8/5Q2/PPPP1PPP/RNB1K2R b KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense, Kieseritzky Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 r1bqkb1r/ppp2ppp/5n2/n2Pp1N1/2B5/3P4/PPP2PPP/RNBQK2R b KQkq - +C58 Italian Game: Two Knights Defense, Polerio Defense, Yankovich Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. Qe2 Nxc4 9. dxc4 Bc5 10. Nfd2 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 h7h6 g5f3 e5e4 d1e2 a5c4 d3c4 f8c5 f3d2 r1bqk2r/ppp2pp1/5n1p/2bP4/2P1p3/8/PPPNQPPP/RNB1K2R b KQkq - +C59 Italian Game: Two Knights Defense, Knorre Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Bd6 11. d4 Qc7 12. Bd2 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5f3 e5e4 f3e5 f8d6 d2d4 d8c7 c1d2 r1b1k2r/p1q2pp1/2pb1n1p/n3N3/3Pp3/8/PPPBBPPP/RN1QK2R b KQkq - +C59 Italian Game: Two Knights Defense, Polerio Defense, Göring Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Qc7 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5f3 e5e4 f3e5 d8c7 r1b1kb1r/p1q2pp1/2p2n1p/n3N3/4p3/8/PPPPBPPP/RNBQK2R w KQkq - +C59 Italian Game: Two Knights Defense, Polerio Defense, Suhle Defense 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 r1bqkb1r/p4pp1/2p2n1p/n3p1N1/8/8/PPPPBPPP/RNBQK2R w KQkq - +C59 Italian Game: Two Knights Defense, Steinitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nh3 e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5h3 r1bqkb1r/p4pp1/2p2n1p/n3p3/8/7N/PPPPBPPP/RNBQK2R b KQkq - +C60 Ruy Lopez 1. e4 e5 2. Nf3 Nc6 3. Bb5 e2e4 e7e5 g1f3 b8c6 f1b5 r1bqkbnr/pppp1ppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C60 Ruy Lopez: Alapin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bb4 e2e4 e7e5 g1f3 b8c6 f1b5 f8b4 r1bqk1nr/pppp1ppp/2n5/1B2p3/1b2P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Alapin Defense, Alapin Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bb4 4. c3 Ba5 5. Bxc6 dxc6 e2e4 e7e5 g1f3 b8c6 f1b5 f8b4 c2c3 b4a5 b5c6 d7c6 r1bqk1nr/ppp2ppp/2p5/b3p3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Brentano Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 g5 e2e4 e7e5 g1f3 b8c6 f1b5 g7g5 r1bqkbnr/pppp1p1p/2n5/1B2p1p1/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Bulgarian Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a5 r1bqkbnr/1ppp1ppp/2n5/pB2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Cozio Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 e2e4 e7e5 g1f3 b8c6 f1b5 g8e7 r1bqkb1r/ppppnppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Cozio Defense, Paulsen Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. Nc3 g6 e2e4 e7e5 g1f3 b8c6 f1b5 g8e7 b1c3 g7g6 r1bqkb1r/ppppnp1p/2n3p1/1B2p3/4P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - +C60 Ruy Lopez: Cozio Defense, Tartakower Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. d4 exd4 5. Nxd4 Bg7 6. Be3 Nge7 7. Nc3 O-O 8. Qd2 d5 e2e4 e7e5 g1f3 b8c6 f1b5 g7g6 d2d4 e5d4 f3d4 f8g7 c1e3 g8e7 b1c3 e8g8 d1d2 d7d5 r1bq1rk1/ppp1npbp/2n3p1/1B1p4/3NP3/2N1B3/PPPQ1PPP/R3K2R w KQ - +C60 Ruy Lopez: Fianchetto Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 e2e4 e7e5 g1f3 b8c6 f1b5 g7g6 r1bqkbnr/pppp1p1p/2n3p1/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Fianchetto Defense, Kevitz Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. c3 f5 e2e4 e7e5 g1f3 b8c6 f1b5 g7g6 c2c3 f7f5 r1bqkbnr/pppp3p/2n3p1/1B2pp2/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Lucena Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 f8e7 r1bqk1nr/ppppbppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Nürnberg Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f6 e2e4 e7e5 g1f3 b8c6 f1b5 f7f6 r1bqkbnr/pppp2pp/2n2p2/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Pollock Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Na5 e2e4 e7e5 g1f3 b8c6 f1b5 c6a5 r1bqkbnr/pppp1ppp/8/nB2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Retreat Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nb8 e2e4 e7e5 g1f3 b8c6 f1b5 c6b8 rnbqkbnr/pppp1ppp/8/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Rotary-Albany Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 b6 e2e4 e7e5 g1f3 b8c6 f1b5 b7b6 r1bqkbnr/p1pp1ppp/1pn5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Spanish Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 d5 e2e4 e7e5 g1f3 b8c6 f1b5 d7d5 r1bqkbnr/ppp2ppp/2n5/1B1pp3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C60 Ruy Lopez: Spanish Countergambit, Harding Countergambit, Fricke Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 d5 4. Nxe5 Qg5 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 d7d5 f3e5 d8g5 e1g1 r1b1kbnr/ppp2ppp/2n5/1B1pN1q1/4P3/8/PPPP1PPP/RNBQ1RK1 b kq - +C60 Ruy Lopez: Spanish Countergambit, Harding Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 d5 4. Nxe5 Qg5 5. Nxc6 e2e4 e7e5 g1f3 b8c6 f1b5 d7d5 f3e5 d8g5 e5c6 r1b1kbnr/ppp2ppp/2N5/1B1p2q1/4P3/8/PPPP1PPP/RNBQK2R b KQkq - +C60 Ruy Lopez: Vinogradov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Qe7 e2e4 e7e5 g1f3 b8c6 f1b5 d8e7 r1b1kbnr/ppppqppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C61 Ruy Lopez: Bird Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 e2e4 e7e5 g1f3 b8c6 f1b5 c6d4 r1bqkbnr/pppp1ppp/8/1B2p3/3nP3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C61 Ruy Lopez: Bird Variation, Paulsen Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. O-O Ne7 e2e4 e7e5 g1f3 b8c6 f1b5 c6d4 f3d4 e5d4 e1g1 g8e7 r1bqkb1r/ppppnppp/8/1B6/3pP3/8/PPPP1PPP/RNBQ1RK1 w kq - +C62 Ruy Lopez: Old Steinitz Defense, Semi-Duras Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. c4 e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 c8d7 c2c4 r2qkbnr/pppb1ppp/2np4/1B2p3/2PPP3/5N2/PP3PPP/RNBQK2R b KQkq - +C62 Ruy Lopez: Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 r1bqkbnr/ppp2ppp/2np4/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C62 Ruy Lopez: Steinitz Defense, Center Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 e5d4 e1g1 r1bqkbnr/ppp2ppp/2np4/1B6/3pP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C62 Ruy Lopez: Steinitz Defense, Nimzowitsch Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nf6 6. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 c8d7 b1c3 g8f6 b5c6 r2qkb1r/pppb1ppp/2Bp1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 r1bqkbnr/pppp2pp/2n5/1B2pp2/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C63 Ruy Lopez: Schliemann Defense, Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qg5 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 f5e4 c3e4 d7d5 f3e5 d5e4 e5c6 d8g5 r1b1kbnr/ppp3pp/2N5/1B4q1/4p3/8/PPPP1PPP/R1BQK2R w KQkq - +C63 Ruy Lopez: Schliemann Defense, Dyckhoff Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 r1bqkbnr/pppp2pp/2n5/1B2pp2/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense, Exchange Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b5c6 r1bqkbnr/pppp2pp/2B5/4pp2/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense, Jaenisch Gambit Accepted 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. exf5 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 e4f5 r1bqkbnr/pppp2pp/2n5/1B2pP2/8/5N2/PPPP1PPP/RNBQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense, Kostic Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 f5e4 c3e4 f8e7 r1bqk1nr/ppppb1pp/2n5/1B2p3/4N3/5N2/PPPP1PPP/R1BQK2R w KQkq - +C63 Ruy Lopez: Schliemann Defense, Möhring Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qd5 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 f5e4 c3e4 d7d5 f3e5 d5e4 e5c6 d8d5 r1b1kbnr/ppp3pp/2N5/1B1q4/4p3/8/PPPP1PPP/R1BQK2R w KQkq - +C63 Ruy Lopez: Schliemann Defense, Schönemann Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d4 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 d2d4 r1bqkbnr/pppp2pp/2n5/1B2pp2/3PP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C63 Ruy Lopez: Schliemann Defense, Tartakower Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 Nf6 e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3 f5e4 c3e4 g8f6 r1bqkb1r/pppp2pp/2n2n2/1B2p3/4N3/5N2/PPPP1PPP/R1BQK2R w KQkq - +C64 Ruy Lopez: Classical Defense, Benelux Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3 O-O 6. d4 Bb6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5 c2c3 e8g8 d2d4 c5b6 r1bq1rk1/pppp1ppp/1bn2n2/1B2p3/3PP3/2P2N2/PP3PPP/RNBQ1RK1 w - - +C64 Ruy Lopez: Classical Defense, Boden Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Qe7 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 d8e7 r1b1k1nr/ppppqppp/2n5/1Bb1p3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Defense, Zaitsev Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. b4 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 e1g1 c6d4 b2b4 r1bqk1nr/pppp1ppp/8/1Bb1p3/1P1nP3/5N2/P1PP1PPP/RNBQ1RK1 b kq - +C64 Ruy Lopez: Classical Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 r1bqk1nr/pppp1ppp/2n5/1Bb1p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Variation, Central Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 r1bqk1nr/pppp1ppp/2n5/1Bb1p3/4P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C64 Ruy Lopez: Classical Variation, Charousek Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Bb6 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 c5b6 r1bqk1nr/pppp1ppp/1bn5/1B2p3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Variation, Cordel Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 f5 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 f7f5 r1bqk1nr/pppp2pp/2n5/1Bb1pp2/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Variation, Konikowski Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 d5 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 d7d5 r1bqk1nr/ppp2ppp/2n5/1Bbpp3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C64 Ruy Lopez: Classical Variation, Modern Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3 O-O 6. d4 Bb6 7. Bg5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5 c2c3 e8g8 d2d4 c5b6 c1g5 r1bq1rk1/pppp1ppp/1bn2n2/1B2p1B1/3PP3/2P2N2/PP3PPP/RN1Q1RK1 b - - +C64 Ruy Lopez: Classical Variation, Spanish Wing Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. b4 e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 b2b4 r1bqk1nr/pppp1ppp/2n5/1Bb1p3/1P2P3/5N2/P1PP1PPP/RNBQK2R b KQkq - +C65 Ruy Lopez: Berlin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C65 Ruy Lopez: Berlin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C65 Ruy Lopez: Berlin Defense, Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. Bxc6+ e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 d7d6 b5c6 r1bqkb1r/ppp2ppp/2Bp1n2/4p3/4P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - +C65 Ruy Lopez: Berlin Defense, Beverwijk Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5 r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C65 Ruy Lopez: Berlin Defense, Duras Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 d7d6 c2c4 r1bqkb1r/ppp2ppp/2np1n2/1B2p3/2P1P3/3P1N2/PP3PPP/RNBQK2R b KQkq - +C65 Ruy Lopez: Berlin Defense, Fishing Pole Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Ng4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6g4 r1bqkb1r/pppp1ppp/2n5/1B2p3/4P1n1/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C65 Ruy Lopez: Berlin Defense, Kaufmann Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Be3 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 f8c5 c1e3 r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/3PBN2/PPP2PPP/RN1QK2R b KQkq - +C65 Ruy Lopez: Berlin Defense, Mortimer Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 5. Nxe5 c6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 c6e7 f3e5 c7c6 r1bqkb1r/pp1pnppp/2p2n2/1B2N3/4P3/3P4/PPP2PPP/RNBQK2R w KQkq - +C65 Ruy Lopez: Berlin Defense, Mortimer Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 c6e7 r1bqkb1r/ppppnppp/5n2/1B2p3/4P3/3P1N2/PPP2PPP/RNBQK2R w KQkq - +C65 Ruy Lopez: Berlin Defense, Nyholm Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d4 exd4 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d4 e5d4 e1g1 r1bqkb1r/pppp1ppp/2n2n2/1B6/3pP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C65 Ruy Lopez: Classical Variation, Zukertort Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5 c2c3 r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/2P2N2/PP1P1PPP/RNBQ1RK1 b kq - +C65 Ruy Lopez: Halloween Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nxe5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 f3e5 r1bqkb1r/pppp1ppp/2n2n2/1B2N3/4P3/8/PPPP1PPP/RNBQK2R b KQkq - +C66 Ruy Lopez: Berlin Defense, Closed Bernstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bg5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 c1g5 r2qk2r/pppbbppp/2np1n2/1B2p1B1/3PP3/2N2N2/PPP2PPP/R2Q1RK1 b kq - +C66 Ruy Lopez: Berlin Defense, Closed Showalter Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 b5c6 r2qk2r/pppbbppp/2Bp1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQ1RK1 b kq - +C66 Ruy Lopez: Berlin Defense, Closed Wolf Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 exd4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 e5d4 r2qkb1r/pppb1ppp/2np1n2/1B6/3pP3/2N2N2/PPP2PPP/R1BQ1RK1 w kq - +C66 Ruy Lopez: Berlin Defense, Hedgehog Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 r2qk2r/pppbbppp/2np1n2/1B2p3/3PP3/2N2N2/PPP2PPP/R1BQ1RK1 w kq - +C66 Ruy Lopez: Berlin Defense, Improved Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 r1bqkb1r/ppp2ppp/2np1n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C66 Ruy Lopez: Berlin Defense, Tarrasch Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nf6 6. O-O Be7 7. Re1 O-O e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 c8d7 b1c3 g8f6 e1g1 f8e7 f1e1 e8g8 r2q1rk1/pppbbppp/2np1n2/1B2p3/3PP3/2N2N2/PPP2PPP/R1BQR1K1 w - - +C66 Ruy Lopez: Closed Berlin Defense, Chigorin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Nd7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 f6d7 r1bqkb1r/pppn1ppp/2np4/1B2p3/3PP3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Berlin Wall 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 Bd7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5c6 d7c6 d4e5 d6f5 d1d8 e8d8 b1c3 c8d7 r2k1b1r/pppb1ppp/2p5/4Pn2/8/2N2N2/PPP2PPP/R1B2RK1 w - - +C67 Ruy Lopez: Berlin Defense, Cordel Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nf5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6f5 r1bqk2r/p1ppbppp/2p5/4Pn2/8/5N2/PPP1QPPP/RNB2RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Minckwitz Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. dxe5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d4e5 r1bqk2r/ppppbppp/2n5/1B2P3/4n3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C67 Ruy Lopez: Berlin Defense, Pillsbury Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. b3 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 b2b3 r1bqk2r/pnppbppp/2p5/4P3/8/1P3N2/P1P1QPPP/RNB2RK1 b kq - +C67 Ruy Lopez: Berlin Defense, Rio Gambit Accepted 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 r1bqkb1r/pppp1ppp/2n5/1B2p3/4n3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Rio de Janeiro Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 r1bqk2r/ppppbppp/2n5/1B2p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Rio de Janeiro Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nc3 O-O 10. Re1 Nc5 11. Nd4 Ne6 12. Be3 Nxd4 13. Bxd4 c5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 b1c3 e8g8 f1e1 b7c5 f3d4 c5e6 c1e3 e6d4 e3d4 c6c5 r1bq1rk1/p1ppbppp/8/2p1P3/3B4/2N5/PPP1QPPP/R3R1K1 w - - +C67 Ruy Lopez: Berlin Defense, Rosenthal Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 a6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 a7a6 r1bqkb1r/1ppp1ppp/p1n5/1B2p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Trifunovic Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 d5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 d7d5 r1bqk2r/ppp1bppp/2n5/1B1pp3/3Pn3/5N2/PPP1QPPP/RNB2RK1 w kq - +C67 Ruy Lopez: Berlin Defense, Winawer Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nd4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 f3d4 r1bqk2r/pnppbppp/2p5/4P3/3N4/8/PPP1QPPP/RNB2RK1 b kq - +C67 Ruy Lopez: Berlin Defense, Zukertort Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. c4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 c2c4 r1bqk2r/pnppbppp/2p5/4P3/2P5/5N2/PP2QPPP/RNB2RK1 b kq - +C67 Ruy Lopez: Berlin Defense, l'Hermet Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 r1bqkb1r/pppp1ppp/2nn4/1B2p3/3P4/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Berlin Defense, l'Hermet Variation, Berlin Wall Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5c6 d7c6 d4e5 d6f5 d1d8 e8d8 r1bk1b1r/ppp2ppp/2p5/4Pn2/8/5N2/PPP2PPP/RNB2RK1 w - - +C67 Ruy Lopez: Berlin Defense, l'Hermet Variation, Westerinen Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Ne4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5c6 d7c6 d4e5 d6e4 r1bqkb1r/ppp2ppp/2p5/4P3/4n3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C67 Ruy Lopez: Open Berlin Defense, Showalter Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Ba4 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5a4 r1bqkb1r/pppp1ppp/2nn4/4p3/B2P4/5N2/PPP2PPP/RNBQ1RK1 b kq - +C67 Ruy Lopez: Open Berlin Defense, l'Hermet Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. dxe5 e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 d4e5 r1bqkb1r/pppp1ppp/2nn4/1B2P3/8/5N2/PPP2PPP/RNBQ1RK1 b kq - +C68 Ruy Lopez: Exchange Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 r1bqkbnr/1ppp1ppp/p1B5/4p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C68 Ruy Lopez: Exchange Variation, Alekhine Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 d2d4 e5d4 d1d4 d8d4 f3d4 f8d6 r1b1k1nr/1pp2ppp/p1pb4/8/3NP3/8/PPP2PPP/RNB1K2R w KQkq - +C68 Ruy Lopez: Exchange Variation, Keres Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 b1c3 r1bqkbnr/1pp2ppp/p1p5/4p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C68 Ruy Lopez: Exchange Variation, Lutikov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 b7c6 r1bqkbnr/2pp1ppp/p1p5/4p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C68 Ruy Lopez: Exchange Variation, Romanovsky Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 b1c3 f7f6 d2d3 r1bqkbnr/1pp3pp/p1p2p2/4p3/4P3/2NP1N2/PPP2PPP/R1BQK2R b KQkq - +C68 Ruy Lopez: Exchange, Alekhine Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 d2d4 e5d4 d1d4 d8d4 f3d4 c8d7 r3kbnr/1ppb1ppp/p1p5/8/3NP3/8/PPP2PPP/RNB1K2R w KQkq - +C69 Ruy Lopez: Exchange Variation, Alapin Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 h5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 c8g4 h2h3 h7h5 r2qkbnr/1pp2pp1/p1p5/4p2p/4P1b1/5N1P/PPPP1PP1/RNBQ1RK1 w kq - +C69 Ruy Lopez: Exchange Variation, Bronstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Qd6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 d8d6 r1b1kbnr/1pp2ppp/p1pq4/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C69 Ruy Lopez: Exchange Variation, Gligoric Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 f7f6 r1bqkbnr/1pp3pp/p1p2p2/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C69 Ruy Lopez: Exchange Variation, King's Bishop Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 f8d6 r1bqk1nr/1pp2ppp/p1pb4/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C69 Ruy Lopez: Exchange Variation, Normal Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 r1bqkbnr/1pp2ppp/p1p5/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C70 Ruy Lopez: Bird's Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nd4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 c6d4 r1bqkbnr/1ppp1ppp/p7/4p3/B2nP3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 r1bqkbnr/1ppp1ppp/p1n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Alapin's Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f8b4 r1bqk1nr/1ppp1ppp/p1n5/4p3/Bb2P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Caro Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 r1bqkbnr/2pp1ppp/p1n5/1p2p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Classical Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f8c5 r1bqk1nr/1ppp1ppp/p1n5/2b1p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Cozio Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8e7 r1bqkb1r/1pppnppp/p1n5/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g7g6 r1bqkbnr/1ppp1p1p/p1n3p1/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Graz Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 f8c5 r1bqk1nr/2pp1ppp/p1n5/1pb1p3/4P3/1B3N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Norwegian Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Na5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 c6a5 r1bqkbnr/2pp1ppp/p7/np2p3/4P3/1B3N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Norwegian Variation, Nightingale Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Na5 6. Bxf7+ e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 c6a5 b3f7 r1bqkbnr/2pp1Bpp/p7/np2p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C70 Ruy Lopez: Morphy Defense, Schliemann Defense Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f7f5 r1bqkbnr/1ppp2pp/p1n5/4pp2/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C70 Ruy Lopez: Morphy Defense, Schliemann Defense Deferred, Jaenisch Gambit Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5 5. exf5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f7f5 e4f5 r1bqkbnr/1ppp2pp/p1n5/4pP2/B7/5N2/PPPP1PPP/RNBQK2R b KQkq - +C71 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - +C71 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 b1c3 r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C71 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c4 r1bqkbnr/1pp2ppp/p1np4/4p3/B1P1P3/5N2/PP1P1PPP/RNBQK2R b KQkq - +C71 Ruy Lopez: Noah's Ark Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 d6 6. d4 Nxd4 7. Nxd4 exd4 8. Qxd4 c5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 d7d6 d2d4 c6d4 f3d4 e5d4 d1d4 c7c5 r1bqkbnr/5ppp/p2p4/1pp5/3QP3/1B6/PPP2PPP/RNB1K2R w KQkq - +C72 Ruy Lopez: Closed, Kecskemet Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. c3 Nf6 7. d4 Be7 8. Nbd2 O-O 9. Re1 Be8 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 e1g1 c8d7 c2c3 g8f6 d2d4 f8e7 b1d2 e8g8 f1e1 d7e8 r2qbrk1/1pp1bppp/p1np1n2/4p3/B2PP3/2P2N2/PP1N1PPP/R1BQR1K1 w - - +C72 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 e1g1 r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C73 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 a4c6 b7c6 d2d4 r1bqkbnr/2p2ppp/p1pp4/4p3/3PP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C73 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 a4c6 b7c6 d2d4 f7f6 r1bqkbnr/2p3pp/p1pp1p2/4p3/3PP3/5N2/PPP2PPP/RNBQK2R w KQkq - +C74 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C74 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 f7f5 e4f5 c8f5 e1g1 r2qkbnr/1pp3pp/p1np4/4pb2/B7/2P2N2/PP1P1PPP/RNBQ1RK1 b kq - +C74 Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 f7f5 r1bqkbnr/1pp3pp/p1np4/4pp2/B3P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C75 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 c8d7 r2qkbnr/1ppb1ppp/p1np4/4p3/B3P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq - +C75 Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 c8d7 d2d4 g8e7 r2qkb1r/1ppbnppp/p1np4/4p3/B2PP3/2P2N2/PP3PPP/RNBQK2R w KQkq - +C76 Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Fianchetto Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. c3 a6 5. Ba4 d6 6. d4 Bd7 e2e4 e7e5 g1f3 b8c6 f1b5 g7g6 c2c3 a7a6 b5a4 d7d6 d2d4 c8d7 r2qkbnr/1ppb1p1p/p1np2p1/4p3/B2PP3/2P2N2/PP3PPP/RNBQK2R w KQkq - +C77 Ruy Lopez: Morphy Defense, Anderssen Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d2d3 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Bayreuth Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 a4c6 r1bqkb1r/1ppp1ppp/p1B2n2/4p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Duras Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d2d3 d7d6 c2c4 r1bqkb1r/1pp2ppp/p1np1n2/4p3/B1P1P3/3P1N2/PP3PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Jaffe Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 c2c3 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Mackenzie Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d2d4 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B2PP3/5N2/PPP2PPP/RNBQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Tarrasch Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 b1c3 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - +C77 Ruy Lopez: Morphy Defense, Wormald Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d1e2 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/5N2/PPPPQPPP/RNB1K2R b KQkq - +C77 Ruy Lopez: Wormald Attack, Grünfeld Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. d4 d6 8. c3 Bg4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d1e2 b7b5 a4b3 f8e7 d2d4 d7d6 c2c3 c8g4 r2qk2r/2p1bppp/p1np1n2/1p2p3/3PP1b1/1BP2N2/PP2QPPP/RNB1K2R w KQkq - +C78 Ruy Lopez: Brix Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O g6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 g7g6 r1bqkb1r/1ppp1p1p/p1n2np1/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Central Countergambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d5 r1bqkb1r/1pp2ppp/p1n2n2/3pp3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Morphy Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C78 Ruy Lopez: Morphy Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 d7d6 r1bqkb1r/2p2ppp/p1np1n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Morphy Defense, Arkhangelsk Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bb7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 c8b7 r2qkb1r/1bpp1ppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8c5 r1bqk2r/1ppp1ppp/p1n2n2/2b1p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C78 Ruy Lopez: Morphy Defense, Wing Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. a4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 f8e7 a2a4 r1bqk2r/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQ1RK1 b kq - +C78 Ruy Lopez: Rabinovich Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 7. Ng5 d5 8. exd5 Nd4 9. Re1 Bc5 10. Rxe5+ Kf8 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 d7d6 f3g5 d6d5 e4d5 c6d4 f1e1 f8c5 e1e5 e8f8 r1bq1k1r/2p2ppp/p4n2/1pbPR1N1/3n4/1B6/PPPP1PPP/RNBQ2K1 w - - +C79 Ruy Lopez: Morphy Defense, Steinitz Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 r1bqkb1r/1pp2ppp/p1np1n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C79 Ruy Lopez: Morphy Defense, Steinitz Deferred 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Nxe4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 f6e4 r1bqkb1r/2p2ppp/p1pp4/4p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C79 Ruy Lopez: Steinitz Defense Deferred, Boleslavsky Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Nxe4 8. Re1 f5 9. dxe5 d5 10. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 f6e4 f1e1 f7f5 d4e5 d6d5 b1c3 r1bqkb1r/2p3pp/p1p5/3pPp2/4n3/2N2N2/PPP2PPP/R1BQR1K1 b kq - +C79 Ruy Lopez: Steinitz Defense Deferred, Lipnitsky Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Bg4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 c8g4 r2qkb1r/2p2ppp/p1pp1n2/4p3/3PP1b1/5N2/PPP2PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Morphy Defense, Tartakower Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d1e2 r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/5N2/PPPPQPPP/RNB2RK1 b kq - +C80 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 r1bqkb1r/1ppp1ppp/p1n5/4p3/B2Pn3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 r1bqkb1r/2pp1ppp/p1n5/1p2p3/3Pn3/1B3N2/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 r1bqkb1r/2p2ppp/p1n5/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open, Berger Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. a4 Nxd4 9. Nxd4 exd4 10. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 a2a4 c6d4 f3d4 e5d4 b1c3 r1bqkb1r/2p2ppp/p7/1p1p4/P2pn3/1BN5/1PP2PPP/R1BQ1RK1 b kq - +C80 Ruy Lopez: Open, Bernstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 b1d2 r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPPN1PPP/R1BQ1RK1 b kq - +C80 Ruy Lopez: Open, Bernstein Variation, Luther Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Bc5 10. Qe1 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 b1d2 f8c5 d1e1 r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1B3N2/PPPN1PPP/R1B1QRK1 b kq - +C80 Ruy Lopez: Open, Friess Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Nxe5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 f3e5 r1bqkb1r/2pp1ppp/p1n5/1p2N3/B2Pn3/8/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open, Harksen Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. c4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 c2c4 r1bqkb1r/2p2ppp/p1n5/1p1pp3/2PPn3/1B3N2/PP3PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open, Karpov Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 10. c3 d4 11. Ng5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 b1d2 e4c5 c2c3 d5d4 f3g5 r2qkb1r/2p2ppp/p1n1b3/1pn1P1N1/3p4/1BP5/PP1N1PPP/R1BQ1RK1 b kq - +C80 Ruy Lopez: Open, Knorre Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 b1c3 r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq - +C80 Ruy Lopez: Open, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Open, Richter Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. d5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 d4d5 r1bqkb1r/2pp1ppp/p1n5/1p1Pp3/B3n3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C80 Ruy Lopez: Open, Riga Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 e5d4 r1bqkb1r/1ppp1ppp/p1n5/8/B2pn3/5N2/PPP2PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Open, Schlechter Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. a4 Nxd4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 a2a4 c6d4 r1bqkb1r/2p2ppp/p7/1p1pp3/P2nn3/1B3N2/1PP2PPP/RNBQ1RK1 w kq - +C80 Ruy Lopez: Open, Skipworth Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Re1 d5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 f1e1 d7d5 r1bqkb1r/1pp2ppp/p1n5/3pp3/B3n3/5N2/PPPP1PPP/RNBQR1K1 w kq - +C80 Ruy Lopez: Open, Zukertort Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Ne7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c6e7 r1bqkb1r/2p1nppp/p7/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 w kq - +C81 Ruy Lopez: Open, Howell Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2 r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPP1QPPP/RNB2RK1 b kq - +C81 Ruy Lopez: Open, Howell Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. c4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2 f8e7 c2c4 r2qk2r/2p1bppp/p1n1b3/1p1pP3/2P1n3/1B3N2/PP2QPPP/RNB2RK1 b kq - +C81 Ruy Lopez: Open, Howell Attack, Ekstrom Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 O-O 11. c4 bxc4 12. Bxc4 Qd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2 f8e7 f1d1 e8g8 c2c4 b5c4 b3c4 d8d7 r4rk1/2pqbppp/p1n1b3/3pP3/2B1n3/5N2/PP2QPPP/RNBR2K1 w - - +C82 Ruy Lopez: Open 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 b kq - +C82 Ruy Lopez: Open, Berlin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Nc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 e4c5 r2qkb1r/2p2ppp/p1n1b3/1pnpP3/8/1BP2N2/PP3PPP/RNBQ1RK1 w kq - +C82 Ruy Lopez: Open, Dilworth Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O 11. Bc2 Nxf2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 b1d2 e8g8 b3c2 e4f2 r2q1rk1/2p2ppp/p1n1b3/1pbpP3/8/2P2N2/PPBN1nPP/R1BQ1RK1 w - - +C82 Ruy Lopez: Open, Italian Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 w kq - +C82 Ruy Lopez: Open, Motzko Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qd3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 d1d3 r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BPQ1N2/PP3PPP/RNB2RK1 b kq - +C82 Ruy Lopez: Open, Motzko Attack, Nenarokov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qd3 Ne7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 d1d3 c6e7 r2qk2r/2p1nppp/p3b3/1pbpP3/4n3/1BPQ1N2/PP3PPP/RNB2RK1 w kq - +C82 Ruy Lopez: Open, St. Petersburg Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 b1d2 r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BP2N2/PP1N1PPP/R1BQ1RK1 b kq - +C83 Ruy Lopez: Open, Breslau Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Re1 O-O 11. Nd4 Nxe5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 f1e1 e8g8 f3d4 c6e5 r2q1rk1/2p1bppp/p3b3/1p1pn3/3Nn3/1BP5/PP3PPP/RNBQR1K1 w - - +C83 Ruy Lopez: Open, Classical Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 r2qk2r/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 w kq - +C83 Ruy Lopez: Open, Classical Defense, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 Be7 7. Re1 b5 8. Bb3 d5 9. dxe5 Be6 10. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 f8e7 f1e1 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 r2qk2r/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQR1K1 b kq - +C83 Ruy Lopez: Open, Malkin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 O-O 11. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 b1d2 e8g8 d1e2 r2q1rk1/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP1NQPPP/R1B2RK1 b - - +C83 Ruy Lopez: Open, Tarrasch Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Re1 O-O 11. Nd4 Qd7 12. Nxe6 fxe6 13. Rxe4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 f1e1 e8g8 f3d4 d8d7 d4e6 f7e6 e1e4 r4rk1/2pqb1pp/p1n1p3/1p1pP3/4R3/1BP5/PP3PPP/RNBQ2K1 b - - +C84 Ruy Lopez: Closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - +C84 Ruy Lopez: Closed, Basque Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 exd4 7. e5 Ne4 8. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d4 e5d4 e4e5 f6e4 c2c3 r1bqk2r/1pppbppp/p1n5/4P3/B2pn3/2P2N2/PP3PPP/RNBQ1RK1 b kq - +C84 Ruy Lopez: Closed, Center Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d4 r1bqk2r/1pppbppp/p1n2n2/4p3/B2PP3/5N2/PPP2PPP/RNBQ1RK1 b kq - +C84 Ruy Lopez: Closed, Center Attack, Basque Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 exd4 7. e5 Ne4 8. c3 dxc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d4 e5d4 e4e5 f6e4 c2c3 d4c3 r1bqk2r/1pppbppp/p1n5/4P3/B3n3/2p2N2/PP3PPP/RNBQ1RK1 w kq - +C84 Ruy Lopez: Closed, Martinez Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d3 r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/3P1N2/PPP2PPP/RNBQ1RK1 b kq - +C84 Ruy Lopez: Closed, Morphy Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Nc3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 b1c3 r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq - +C85 Ruy Lopez: Closed, Delayed Exchange 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 a4c6 r1bqk2r/1pppbppp/p1B2n2/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - +C86 Ruy Lopez: Closed, Worrall Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2 r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/5N2/PPPPQPPP/RNB2RK1 b kq - +C86 Ruy Lopez: Closed, Worrall Attack, Castling Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2 b7b5 a4b3 e8g8 r1bq1rk1/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPPQPPP/RNB2RK1 w - - +C86 Ruy Lopez: Closed, Worrall Attack, Delayed Castling Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2 b7b5 a4b3 d7d6 r1bqk2r/2p1bppp/p1np1n2/1p2p3/4P3/1B3N2/PPPPQPPP/RNB2RK1 w kq - +C87 Ruy Lopez: Closed, Averbakh Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 d6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 d7d6 r1bqk2r/1pp1bppp/p1np1n2/4p3/B3P3/5N2/PPPP1PPP/RNBQR1K1 w kq - +C88 Ruy Lopez: Closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 r1bqk2r/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 b kq - +C88 Ruy Lopez: Closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 r1bq1rk1/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 w - - +C88 Ruy Lopez: Closed, Alekhine Gambit 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. Nbd2 O-O 12. Nf1 Bg4 13. Ne3 Bxf3 14. Qxf3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 e8g8 d2f1 c8g4 f1e3 g4f3 d1f3 r4rk1/2q1bppp/p2p1n2/npp1p3/3PP3/2P1NQ2/PPB2PPP/R1B1R1K1 b - - +C88 Ruy Lopez: Closed, Anti-Marshall 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 a2a4 r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - - +C88 Ruy Lopez: Closed, Balla Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. a4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 c6a5 b3c2 c7c5 d2d4 d8c7 a2a4 r1b1k2r/2q1bppp/p2p1n2/npp1p3/P2PP3/2P2N2/1PB2PPP/RNBQR1K1 b kq - +C88 Ruy Lopez: Closed, Leonhardt Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. h3 Nc6 12. d5 Nb8 13. Nbd2 g5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 c6a5 b3c2 c7c5 d2d4 d8c7 h2h3 a5c6 d4d5 c6b8 b1d2 g7g5 rnb1k2r/2q1bp1p/p2p1n2/1ppPp1p1/4P3/2P2N1P/PPBN1PP1/R1BQR1K1 w kq - +C88 Ruy Lopez: Closed, Rosen Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 d2d4 r1bqk2r/2p1bppp/p1np1n2/1p2p3/3PP3/1B3N2/PPP2PPP/RNBQR1K1 b kq - +C88 Ruy Lopez: Closed, Trajkovic Counterattack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 Bb7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 c8b7 r2qk2r/1bppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 w kq - +C88 Ruy Lopez: Noah's Ark Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. d4 Nxd4 9. Nxd4 exd4 10. Qxd4 c5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 d2d4 c6d4 f3d4 e5d4 d1d4 c7c5 r1bqk2r/4bppp/p2p1n2/1pp5/3QP3/1B6/PPP2PPP/RNB1R1K1 w kq - +C89 Ruy Lopez: Marshall Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 r1bq1rk1/2p1bppp/p1n2n2/1p1pp3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 w - - +C89 Ruy Lopez: Marshall Attack, Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4 r1bq1rk1/4bppp/p1p5/1p1nR3/3P4/1BP5/PP3PPP/RNBQ2K1 b - - +C89 Ruy Lopez: Marshall Attack, Main Line, Spassky Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Be3 Bg4 16. Qd3 Rae8 17. Nd2 Re6 18. a4 Qh5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4 e7d6 e5e1 d8h4 g2g3 h4h3 c1e3 c8g4 d1d3 a8e8 b1d2 e8e6 a2a4 h3h5 5rk1/5ppp/p1pbr3/1p1n3q/P2P2b1/1BPQB1P1/1P1N1P1P/R3R1K1 w - - +C89 Ruy Lopez: Marshall Attack, Modern Main Line 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4 e7d6 e5e1 d8h4 g2g3 h4h3 r1b2rk1/5ppp/p1pb4/1p1n4/3P4/1BP3Pq/PP3P1P/RNBQR1K1 w - - +C89 Ruy Lopez: Marshall Attack, Modern Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 r1bq1rk1/4bppp/p1p5/1p1nR3/8/1BP5/PP1P1PPP/RNBQ2K1 w - - +C89 Ruy Lopez: Marshall Attack, Original Marshall Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 Nf6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 d5f6 r1bq1rk1/2p1bppp/p4n2/1p2R3/8/1BP5/PP1P1PPP/RNBQ2K1 w - - +C89 Ruy Lopez: Marshall Attack, Re3 Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. Bxd5 cxd5 13. d4 Bd6 14. Re3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 b3d5 c6d5 d2d4 e7d6 e5e3 r1bq1rk1/5ppp/p2b4/1p1p4/3P4/2P1R3/PP3PPP/RNBQ2K1 b - - +C89 Ruy Lopez: Marshall Attack, Steiner Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 e4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 e5e4 r1bq1rk1/2p1bppp/p1n2n2/1p1P4/4p3/1BP2N2/PP1P1PPP/RNBQR1K1 w - - +C90 Ruy Lopez: Closed, Closed Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 w - - +C90 Ruy Lopez: Closed, Lutikov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. Bc2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 b3c2 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/2P2N2/PPBP1PPP/RNBQR1K1 b - - +C90 Ruy Lopez: Closed, Pilnik Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 d2d3 d7d6 c2c3 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BPP1N2/PP3PPP/RNBQR1K1 b - - +C90 Ruy Lopez: Closed, Suetin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. a3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 a2a3 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/PBP2N2/1P1P1PPP/RNBQR1K1 b - - +C91 Ruy Lopez: Closed, Bogoljubov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 d2d4 c8g4 r2q1rk1/2p1bppp/p1np1n2/1p2p3/3PP1b1/1BP2N2/PP3PPP/RNBQR1K1 w - - +C91 Ruy Lopez: Closed, Yates Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 d2d4 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/3PP3/1BP2N2/PP3PPP/RNBQR1K1 b - - +C91 Ruy Lopez: Closed, Yates Variation, Short Attack 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 10. a4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 d2d4 c8g4 a2a4 r2q1rk1/2p1bppp/p1np1n2/1p2p3/P2PP1b1/1BP2N2/1P3PPP/RNBQR1K1 b - - +C92 Ruy Lopez: Closed 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 b - - +C92 Ruy Lopez: Closed, Flohr System 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c8b7 r2q1rk1/1bp1bppp/p1np1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C92 Ruy Lopez: Closed, Keres Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 f6d7 r1bq1rk1/2pnbppp/p1np4/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C92 Ruy Lopez: Closed, Keres Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 a5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 a6a5 r1bq1rk1/2p1bppp/2np1n2/pp2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C92 Ruy Lopez: Closed, Kholmov Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Be6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c8e6 r2q1rk1/2p1bppp/p1npbn2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C92 Ruy Lopez: Closed, Smyslov-Breyer-Zaitsev Hybrid 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. a3 h6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c8b7 d2d4 f8e8 b1d2 e7f8 a2a3 h7h6 r2qrbk1/1bp2pp1/p1np1n1p/1p2p3/3PP3/PBP2N1P/1P1N1PP1/R1BQR1K1 w - - +C92 Ruy Lopez: Closed, Zaitsev System 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Re8 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 f8e8 r1bqr1k1/2p1bppp/p1np1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C93 Ruy Lopez: Closed, Smyslov Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 h7h6 r1bq1rk1/2p1bpp1/p1np1n1p/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C94 Ruy Lopez: Morphy Defense, Breyer Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 rnbq1rk1/2p1bppp/p2p1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - - +C94 Ruy Lopez: Morphy Defense, Breyer Defense, Quiet Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d3 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d3 rnbq1rk1/2p1bppp/p2p1n2/1p2p3/4P3/1BPP1N1P/PP3PP1/RNBQR1K1 b - - +C95 Ruy Lopez: Closed, Breyer 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d4 rnbq1rk1/2p1bppp/p2p1n2/1p2p3/3PP3/1BP2N1P/PP3PP1/RNBQR1K1 b - - +C95 Ruy Lopez: Closed, Breyer Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 c5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d4 b8d7 b1d2 c8b7 b3c2 c7c5 r2q1rk1/1b1nbppp/p2p1n2/1pp1p3/3PP3/2P2N1P/PPBN1PP1/R1BQR1K1 w - - +C95 Ruy Lopez: Closed, Breyer Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. Nh4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d4 b8d7 f3h4 r1bq1rk1/2pnbppp/p2p1n2/1p2p3/3PP2N/1BP4P/PP3PP1/RNBQR1K1 b - - +C95 Ruy Lopez: Morphy Defense, Breyer Defense, Zaitsev Hybrid 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6b8 d2d4 b8d7 r1bq1rk1/2pnbppp/p2p1n2/1p2p3/3PP3/1BP2N1P/PP3PP1/RNBQR1K1 w - - +C96 Ruy Lopez: Closed, Borisenko Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 a5c6 r1bq1rk1/4bppp/p1np1n2/1pp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - - +C96 Ruy Lopez: Closed, Closed Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 r1bq1rk1/2p1bppp/p2p1n2/np2p3/4P3/2P2N1P/PPBP1PP1/RNBQR1K1 b - - +C96 Ruy Lopez: Closed, Closed Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 r1bq1rk1/4bppp/p2p1n2/npp1p3/4P3/2P2N1P/PPBP1PP1/RNBQR1K1 w - - +C96 Ruy Lopez: Closed, Keres Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 f6d7 r1bq1rk1/3nbppp/p2p4/npp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - - +C96 Ruy Lopez: Closed, Rossolimo Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c6 11. d4 Qc7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c6 d2d4 d8c7 r1b2rk1/2q1bppp/p1pp1n2/np2p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - - +C97 Ruy Lopez: Closed, Chigorin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 r1b2rk1/2q1bppp/p2p1n2/npp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - - +C97 Ruy Lopez: Closed, Chigorin, Yugoslav System 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Bd7 13. Nf1 Rfe8 14. Ne3 g6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 c8d7 d2f1 f8e8 f1e3 g7g6 r3r1k1/2qbbp1p/p2p1np1/npp1p3/3PP3/2P1NN1P/PPB2PP1/R1BQR1K1 w - - +C98 Ruy Lopez: Closed, Chigorin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 a5c6 r1b2rk1/2q1bppp/p1np1n2/1pp1p3/3PP3/2P2N1P/PPBN1PP1/R1BQR1K1 w - - +C98 Ruy Lopez: Closed, Chigorin Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. dxc5 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 a5c6 d4c5 r1b2rk1/2q1bppp/p1np1n2/1pP1p3/4P3/2P2N1P/PPBN1PP1/R1BQR1K1 b - - +C99 Ruy Lopez: Morphy Defense, Chigorin Defense, Panov System 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 e8g8 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 c5d4 c3d4 r1b2rk1/2q1bppp/p2p1n2/np2p3/3PP3/5N1P/PPBN1PP1/R1BQR1K1 b - - +D00 Amazon Attack 1. d4 d5 2. Qd3 d2d4 d7d5 d1d3 rnbqkbnr/ppp1pppp/8/3p4/3P4/3Q4/PPP1PPPP/RNB1KBNR b KQkq - +D00 Blackmar Gambit 1. d4 d5 2. e4 d2d4 d7d5 e2e4 rnbqkbnr/ppp1pppp/8/3p4/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - +D00 Blackmar-Diemer Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 d2d4 d7d5 e2e4 d5e4 b1c3 rnbqkbnr/ppp1pppp/8/8/3Pp3/2N5/PPP2PPP/R1BQKBNR b KQkq - +D00 Blackmar-Diemer Gambit 1. d4 Nf6 2. Nc3 d5 3. e4 d2d4 g8f6 b1c3 d7d5 e2e4 rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - +D00 Blackmar-Diemer Gambit Declined: Brombacher Countergambit 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 c5 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 c7c5 rnbqkb1r/pp2pppp/5n2/2p5/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit Declined: Elbert Countergambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e7e5 rnbqkb1r/ppp2ppp/5n2/4p3/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit Declined: Grosshans Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Bd7 d2d4 d7d5 e2e4 d5e4 b1c3 c8d7 rn1qkbnr/pppbpppp/8/8/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit Declined: Lamb Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Nc6 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 b8c6 r1bqkb1r/ppp1pppp/2n2n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit Declined: Langeheinecke Defense 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 e3 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 e4e3 rnbqkb1r/ppp1pppp/5n2/8/3P4/2N1pP2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit: Bogoljubov Defense, Mad Dog Attack 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. h4 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 g7g6 f1c4 f8g7 h2h4 rnbqk2r/ppp1ppbp/5np1/8/2BP3P/2N2N2/PPP3P1/R1BQK2R b KQkq - +D00 Blackmar-Diemer Gambit: Bogoljubov Variation 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 exf3 5. Nxf3 g6 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 e4f3 g1f3 g7g6 rnbqkb1r/ppp1pp1p/5np1/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Bogoljubov Variation, Kloss Attack 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Kh1 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 g7g6 f1c4 f8g7 e1g1 e8g8 g1h1 rnbq1rk1/ppp1ppbp/5np1/8/2BP4/2N2N2/PPP3PP/R1BQ1R1K b - - +D00 Blackmar-Diemer Gambit: Bogoljubov Variation, Nimzowitsch Attack 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. Ne5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 g7g6 f1c4 f8g7 f3e5 rnbqk2r/ppp1ppbp/5np1/4N3/2BP4/2N5/PPP3PP/R1BQK2R b KQkq - +D00 Blackmar-Diemer Gambit: Bogoljubov Variation, Studier Attack 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Qe1 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 e4f3 g1f3 g7g6 f1c4 f8g7 e1g1 e8g8 d1e1 rnbq1rk1/ppp1ppbp/5np1/8/2BP4/2N2N2/PPP3PP/R1B1QRK1 b - - +D00 Blackmar-Diemer Gambit: Diemer-Rosenberg Attack 1. d4 d5 2. e4 dxe4 3. Be3 d2d4 d7d5 e2e4 d5e4 c1e3 rnbqkbnr/ppp1pppp/8/8/3Pp3/4B3/PPP2PPP/RN1QKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Euwe Defense 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 exf3 5. Nxf3 e6 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 e4f3 g1f3 e7e6 rnbqkb1r/ppp2ppp/4pn2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Euwe Defense, Zilbermints Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 e7e6 c1g5 f8e7 f1d3 b8c6 e1g1 c6d4 g1h1 r1bqk2r/ppp1bppp/4pn2/6B1/3n4/2NB1N2/PPP3PP/R2Q1R1K b kq - +D00 Blackmar-Diemer Gambit: Fritz Attack 1. d4 d5 2. e4 dxe4 3. Bc4 d2d4 d7d5 e2e4 d5e4 f1c4 rnbqkbnr/ppp1pppp/8/8/2BPp3/8/PPP2PPP/RNBQK1NR b KQkq - +D00 Blackmar-Diemer Gambit: Gedult Gambit 1. d4 d5 2. e4 dxe4 3. f3 d2d4 d7d5 e2e4 d5e4 f2f3 rnbqkbnr/ppp1pppp/8/8/3Pp3/5P2/PPP3PP/RNBQKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Kaulich Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 c7c5 rnbqkb1r/pp2pppp/5n2/2p5/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Diemer Attack 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Be3 d2d4 d7d5 e2e4 d5e4 b1c3 e7e5 c1e3 rnbqkbnr/ppp2ppp/8/4p3/3Pp3/2N1B3/PPP2PPP/R2QKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. dxe5 d2d4 d7d5 e2e4 d5e4 b1c3 e7e5 d4e5 rnbqkbnr/ppp2ppp/8/4P3/4p3/2N5/PPP2PPP/R1BQKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Rassmussen Attack 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Nge2 d2d4 d7d5 e2e4 d5e4 b1c3 e7e5 g1e2 rnbqkbnr/ppp2ppp/8/4p3/3Pp3/2N5/PPP1NPPP/R1BQKB1R b KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Simple Variation 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Nxe4 d2d4 d7d5 e2e4 d5e4 b1c3 e7e5 c3e4 rnbqkbnr/ppp2ppp/8/4p3/3PN3/8/PPP2PPP/R1BQKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Lemberger Countergambit, Sneider Attack 1. e4 d5 2. d4 dxe4 3. Nc3 e5 4. Qh5 e2e4 d7d5 d2d4 d5e4 b1c3 e7e5 d1h5 rnbqkbnr/ppp2ppp/8/4p2Q/3Pp3/2N5/PPP2PPP/R1B1KBNR b KQkq - +D00 Blackmar-Diemer Gambit: Pietrowsky Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nc6 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 b8c6 r1bqkb1r/ppp1pppp/2n2n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Rasa-Studier Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Be3 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 c1e3 rnbqkb1r/ppp1pppp/5n2/8/3Pp3/2N1B3/PPP2PPP/R2QKBNR b KQkq - +D00 Blackmar-Diemer Gambit: Ritter Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 b6 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 b7b6 rnbqkb1r/p1p1pppp/1p3n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Rook Pawn Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 h5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 h7h5 rnbqkb1r/ppp1ppp1/5n2/7p/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Ryder Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Qxf3 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 d1f3 rnbqkb1r/ppp1pppp/5n2/8/3P4/2N2Q2/PPP3PP/R1B1KBNR b KQkq - +D00 Blackmar-Diemer Gambit: Schlutter Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nbd7 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 b8d7 r1bqkb1r/pppnpppp/5n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Tartakower Variation 1. e4 d5 2. d4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5 e2e4 d7d5 d2d4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 c8f5 rn1qkb1r/ppp1pppp/5n2/5b2/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Teichmann Variation 1. e4 d5 2. d4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4 e2e4 d7d5 d2d4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 c8g4 rn1qkb1r/ppp1pppp/5n2/8/3P2b1/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: Vienna Variation 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 Bf5 d2d4 g8f6 b1c3 d7d5 e2e4 d5e4 f2f3 c8f5 rn1qkb1r/ppp1pppp/5n2/5b2/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit: Zeller Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Bf5 d2d4 d7d5 e2e4 d5e4 b1c3 c8f5 rn1qkbnr/ppp1pppp/8/5b2/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - +D00 Blackmar-Diemer Gambit: Zeller Defense, Soller Attack 1. d4 d5 2. e4 dxe4 3. Nc3 Bf5 4. f3 Nf6 5. Bc4 d2d4 d7d5 e2e4 d5e4 b1c3 c8f5 f2f3 g8f6 f1c4 rn1qkb1r/ppp1pppp/5n2/5b2/2BPp3/2N2P2/PPP3PP/R1BQK1NR b KQkq - +D00 Blackmar-Diemer Gambit: Ziegler Defense 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c6 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 f2f3 e4f3 g1f3 c7c6 rnbqkb1r/pp2pppp/2p2n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - +D00 Blackmar-Diemer Gambit: von Popiel Gambit 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg5 d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 c1g5 rnbqkb1r/ppp1pppp/5n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR b KQkq - +D00 Blackmar-Diemer Gambit: von Popiel Gambit, Zilbermints Variation 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg5 Bf5 5. Bxf6 exf6 6. g4 Bg6 7. Qe2 Bb4 8. Qb5+ d2d4 d7d5 e2e4 d5e4 b1c3 g8f6 c1g5 c8f5 g5f6 e7f6 g2g4 f5g6 d1e2 f8b4 e2b5 rn1qk2r/ppp2ppp/5pb1/1Q6/1b1Pp1P1/2N5/PPP2P1P/R3KBNR b KQkq - +D00 Blackmar-Diemer, Lemberger Countergambit 1. d4 d5 2. Nc3 Nf6 3. e4 e5 d2d4 d7d5 b1c3 g8f6 e2e4 e7e5 rnbqkb1r/ppp2ppp/5n2/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game 1. d4 d5 d2d4 d7d5 rnbqkbnr/ppp1pppp/8/3p4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - +D00 Queen's Pawn Game 1. d4 d5 2. e3 d2d4 d7d5 e2e3 rnbqkbnr/ppp1pppp/8/3p4/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq - +D00 Queen's Pawn Game 1. d4 d5 2. e3 Nf6 d2d4 d7d5 e2e3 g8f6 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation 1. d4 d5 2. Nc3 d2d4 d7d5 b1c3 rnbqkbnr/ppp1pppp/8/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Alburt Defense 1. d4 d5 2. Nc3 Bf5 d2d4 d7d5 b1c3 c8f5 rn1qkbnr/ppp1pppp/8/3p1b2/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Anti-Veresov 1. d4 d5 2. Nc3 Bg4 d2d4 d7d5 b1c3 c8g4 rn1qkbnr/ppp1pppp/8/3p4/3P2b1/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Fianchetto Defense 1. d4 g6 2. Nf3 Bg7 3. Nc3 d5 d2d4 g7g6 g1f3 f8g7 b1c3 d7d5 rnbqk1nr/ppp1ppbp/6p1/3p4/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Irish Gambit 1. d4 d5 2. Nc3 c5 d2d4 d7d5 b1c3 c7c5 rnbqkbnr/pp2pppp/8/2pp4/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Shaviliuk Gambit 1. d4 d5 2. Nc3 e5 d2d4 d7d5 b1c3 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Chigorin Variation, Shropshire Defense 1. d4 d5 2. Nc3 h5 d2d4 d7d5 b1c3 h7h5 rnbqkbnr/ppp1ppp1/8/3p3p/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Hübsch Gambit 1. d4 Nf6 2. Nc3 d5 3. e4 Nxe4 d2d4 g8f6 b1c3 d7d5 e2e4 f6e4 rnbqkb1r/ppp1pppp/8/3p4/3Pn3/2N5/PPP2PPP/R1BQKBNR w KQkq - +D00 Queen's Pawn Game: Levitsky Attack 1. d4 d5 2. Bg5 d2d4 d7d5 c1g5 rnbqkbnr/ppp1pppp/8/3p2B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq - +D00 Queen's Pawn Game: Levitsky Attack, Welling Variation 1. d4 d5 2. Bg5 Bg4 d2d4 d7d5 c1g5 c8g4 rn1qkbnr/ppp1pppp/8/3p2B1/3P2b1/8/PPP1PPPP/RN1QKBNR w KQkq - +D00 Queen's Pawn Game: Mason Attack 1. d4 d5 2. f4 d2d4 d7d5 f2f4 rnbqkbnr/ppp1pppp/8/3p4/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq - +D00 Queen's Pawn Game: Mason Variation 1. d4 d5 2. Bf4 d2d4 d7d5 c1f4 rnbqkbnr/ppp1pppp/8/3p4/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq - +D00 Queen's Pawn Game: Morris Countergambit 1. d4 d5 2. Bf4 c5 3. e4 d2d4 d7d5 c1f4 c7c5 e2e4 rnbqkbnr/pp2pppp/8/2pp4/3PPB2/8/PPP2PPP/RN1QKBNR b KQkq - +D00 Queen's Pawn Game: Steinitz Countergambit 1. d4 d5 2. Bf4 c5 d2d4 d7d5 c1f4 c7c5 rnbqkbnr/pp2pppp/8/2pp4/3P1B2/8/PPP1PPPP/RN1QKBNR w KQkq - +D00 Queen's Pawn Game: Stonewall Attack 1. d4 d5 2. e3 Nf6 3. Bd3 d2d4 d7d5 e2e3 g8f6 f1d3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/3BP3/PPP2PPP/RNBQK1NR b KQkq - +D00 Queen's Pawn Game: Zurich Gambit 1. d4 d5 2. g4 d2d4 d7d5 g2g4 rnbqkbnr/ppp1pppp/8/3p4/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq - +D01 Queen's Pawn Game: Veresov Attack, Boyce Defense 1. d4 Nf6 2. Nc3 d5 3. Bg5 Ne4 d2d4 g8f6 b1c3 d7d5 c1g5 f6e4 rnbqkb1r/ppp1pppp/8/3p2B1/3Pn3/2N5/PPP1PPPP/R2QKBNR w KQkq - +D01 Queen's Pawn Game: Veresov Attack, Richter Variation 1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. f3 d2d4 g8f6 b1c3 d7d5 c1g5 c8f5 f2f3 rn1qkb1r/ppp1pppp/5n2/3p1bB1/3P4/2N2P2/PPP1P1PP/R2QKBNR b KQkq - +D01 Queen's Pawn Game: Veresov Attack, Two Knights System 1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 d2d4 g8f6 b1c3 d7d5 c1g5 b8d7 g1f3 r1bqkb1r/pppnpppp/5n2/3p2B1/3P4/2N2N2/PPP1PPPP/R2QKB1R b KQkq - +D01 Queen's Pawn Game: Veresov Attack, Two Knights System, Grünfeld Defense 1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 g6 d2d4 g8f6 b1c3 d7d5 c1g5 b8d7 g1f3 g7g6 r1bqkb1r/pppnpp1p/5np1/3p2B1/3P4/2N2N2/PPP1PPPP/R2QKB1R w KQkq - +D01 Queen's Pawn Game: Veresov Attack, Veresov Variation 1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. Bxf6 d2d4 g8f6 b1c3 d7d5 c1g5 c8f5 g5f6 rn1qkb1r/ppp1pppp/5B2/3p1b2/3P4/2N5/PPP1PPPP/R2QKBNR b KQkq - +D01 Rapport-Jobava System 1. d4 d5 2. Nc3 Nf6 3. Bf4 d2d4 d7d5 b1c3 g8f6 c1f4 rnbqkb1r/ppp1pppp/5n2/3p4/3P1B2/2N5/PPP1PPPP/R2QKBNR b KQkq - +D01 Richter-Veresov Attack 1. d4 Nf6 2. Nc3 d5 3. Bg5 d2d4 g8f6 b1c3 d7d5 c1g5 rnbqkb1r/ppp1pppp/5n2/3p2B1/3P4/2N5/PPP1PPPP/R2QKBNR b KQkq - +D01 Richter-Veresov Attack 1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 d2d4 g8f6 b1c3 d7d5 c1g5 c8f5 rn1qkb1r/ppp1pppp/5n2/3p1bB1/3P4/2N5/PPP1PPPP/R2QKBNR w KQkq - +D01 Veresov Opening: Malich Gambit 1. d4 Nf6 2. Nc3 d5 3. Bg5 c5 4. Bxf6 gxf6 5. e4 dxe4 6. d5 d2d4 g8f6 b1c3 d7d5 c1g5 c7c5 g5f6 g7f6 e2e4 d5e4 d4d5 rnbqkb1r/pp2pp1p/5p2/2pP4/4p3/2N5/PPP2PPP/R2QKBNR b KQkq - +D02 London System: Poisoned Pawn Variation 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nc3 d2d4 g8f6 g1f3 d7d5 c1f4 c7c5 e2e3 d8b6 b1c3 rnb1kb1r/pp2pppp/1q3n2/2pp4/3P1B2/2N1PN2/PPP2PPP/R2QKB1R b KQkq - +D02 Queen's Gambit Accepted: Rosenthal Variation 1. d4 d5 2. Nf3 e6 3. c4 dxc4 d2d4 d7d5 g1f3 e7e6 c2c4 d5c4 rnbqkbnr/ppp2ppp/4p3/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D02 Queen's Gambit Declined: Baltic Defense, Pseudo-Slav 1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 c6 d2d4 d7d5 g1f3 c8f5 c2c4 e7e6 b1c3 c7c6 rn1qkbnr/pp3ppp/2p1p3/3p1b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D02 Queen's Pawn Game: Anti-Torre 1. Nf3 d5 2. d4 Bg4 g1f3 d7d5 d2d4 c8g4 rn1qkbnr/ppp1pppp/8/3p4/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Chandler Gambit 1. d4 d5 2. Nf3 c5 3. g3 cxd4 4. Bg2 d2d4 d7d5 g1f3 c7c5 g2g3 c5d4 f1g2 rnbqkbnr/pp2pppp/8/3p4/3p4/5NP1/PPP1PPBP/RNBQK2R b KQkq - +D02 Queen's Pawn Game: Chigorin Variation 1. d4 d5 2. Nf3 Nc6 d2d4 d7d5 g1f3 b8c6 r1bqkbnr/ppp1pppp/2n5/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Krause Variation 1. d4 d5 2. Nf3 c5 d2d4 d7d5 g1f3 c7c5 rnbqkbnr/pp2pppp/8/2pp4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Levitsky Attack, Euwe Variation, Modern Line 1. d4 d5 2. Nf3 c6 3. Bg5 h6 4. Bh4 Qb6 d2d4 d7d5 g1f3 c7c6 c1g5 h7h6 g5h4 d8b6 rnb1kbnr/pp2ppp1/1qp4p/3p4/3P3B/5N2/PPP1PPPP/RN1QKB1R w KQkq - +D02 Queen's Pawn Game: London System 1. d4 d5 2. Nf3 Nf6 3. Bf4 d2d4 d7d5 g1f3 g8f6 c1f4 rnbqkb1r/ppp1pppp/5n2/3p4/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - +D02 Queen's Pawn Game: Symmetrical Variation 1. d4 d5 2. Nf3 Nf6 d2d4 d7d5 g1f3 g8f6 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan 1. d4 d5 2. Nf3 Nf6 3. g3 d2d4 d7d5 g1f3 g8f6 g2g3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq - +D02 Queen's Pawn Game: Zilbermints Countergambit 1. d4 d5 2. Nf3 Nf6 3. c4 b5 d2d4 d7d5 g1f3 g8f6 c2c4 b7b5 rnbqkb1r/p1p1pppp/5n2/1p1p4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D02 Queen's Pawn Game: Zukertort Variation 1. d4 d5 2. Nf3 d2d4 d7d5 g1f3 rnbqkbnr/ppp1pppp/8/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - +D03 Queen's Pawn Game: Torre Attack 1. d4 d5 2. Nf3 Nf6 3. Bg5 d2d4 d7d5 g1f3 g8f6 c1g5 rnbqkb1r/ppp1pppp/5n2/3p2B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - +D03 Queen's Pawn Game: Torre Attack, Gossip Variation 1. d4 d5 2. Nf3 Nf6 3. Bg5 Ne4 d2d4 d7d5 g1f3 g8f6 c1g5 f6e4 rnbqkb1r/ppp1pppp/8/3p2B1/3Pn3/5N2/PPP1PPPP/RN1QKB1R w KQkq - +D03 Queen's Pawn Game: Torre Attack, Grünfeld Variation 1. d4 d5 2. Nf3 Nf6 3. Bg5 g6 d2d4 d7d5 g1f3 g8f6 c1g5 g7g6 rnbqkb1r/ppp1pp1p/5np1/3p2B1/3P4/5N2/PPP1PPPP/RN1QKB1R w KQkq - +D04 Queen's Pawn Game: Colle System 1. d4 d5 2. Nf3 Nf6 3. e3 d2d4 d7d5 g1f3 g8f6 e2e3 rnbqkb1r/ppp1pppp/5n2/3p4/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq - +D04 Queen's Pawn Game: Colle System, Anti-Colle 1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 d2d4 d7d5 g1f3 g8f6 e2e3 c8f5 rn1qkb1r/ppp1pppp/5n2/3p1b2/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq - +D04 Queen's Pawn Game: Colle System, Grünfeld Formation 1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Bd3 Bg7 d2d4 d7d5 g1f3 g8f6 e2e3 g7g6 f1d3 f8g7 rnbqk2r/ppp1ppbp/5np1/3p4/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq - +D05 Queen's Pawn Game: Colle System 1. d4 d5 2. Nf3 Nf6 3. e3 e6 d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq - +D05 Queen's Pawn Game: Colle System 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 f1d3 rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/3BPN2/PPP2PPP/RNBQK2R b KQkq - +D05 Queen's Pawn Game: Colle System, Traditional Colle 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c3 d2d4 g8f6 g1f3 e7e6 e2e3 c7c5 f1d3 d7d5 c2c3 rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/2PBPN2/PP3PPP/RNBQK2R b KQkq - +D05 Queen's Pawn Game: Zukertort Variation 1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 e6 5. b3 d2d4 d7d5 g1f3 c7c5 e2e3 g8f6 b1d2 e7e6 b2b3 rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/1P2PN2/P1PN1PPP/R1BQKB1R b KQkq - +D05 Rubinstein Opening 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 d2d4 g8f6 g1f3 e7e6 e2e3 c7c5 f1d3 d7d5 b2b3 rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/1P1BPN2/P1P2PPP/RNBQK2R b KQkq - +D05 Rubinstein Opening: Bogoljubov Defense 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 Nc6 6. O-O Bd6 7. Bb2 O-O d2d4 g8f6 g1f3 e7e6 e2e3 c7c5 f1d3 d7d5 b2b3 b8c6 e1g1 f8d6 c1b2 e8g8 r1bq1rk1/pp3ppp/2nbpn2/2pp4/3P4/1P1BPN2/PBP2PPP/RN1Q1RK1 w - - +D05 Rubinstein Opening: Classical Defense 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 Nc6 6. O-O Be7 7. Bb2 O-O d2d4 g8f6 g1f3 e7e6 e2e3 c7c5 f1d3 d7d5 b2b3 b8c6 e1g1 f8e7 c1b2 e8g8 r1bq1rk1/pp2bppp/2n1pn2/2pp4/3P4/1P1BPN2/PBP2PPP/RN1Q1RK1 w - - +D05 Rubinstein Opening: Semi-Slav Defense 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Bd6 5. O-O O-O 6. b3 Nbd7 7. Bb2 d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 f1d3 f8d6 e1g1 e8g8 b2b3 b8d7 c1b2 r1bq1rk1/pppn1ppp/3bpn2/3p4/3P4/1P1BPN2/PBP2PPP/RN1Q1RK1 b - - +D06 Queen's Gambit 1. d4 d5 2. c4 d2d4 d7d5 c2c4 rnbqkbnr/ppp1pppp/8/3p4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - +D06 Queen's Gambit Declined: Austrian Attack, Salvio Countergambit 1. d4 d5 2. c4 c5 3. dxc5 d4 d2d4 d7d5 c2c4 c7c5 d4c5 d5d4 rnbqkbnr/pp2pppp/8/2P5/2Pp4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Austrian Defense 1. d4 d5 2. c4 c5 d2d4 d7d5 c2c4 c7c5 rnbqkbnr/pp2pppp/8/2pp4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Austrian Defense, Gusev Countergambit 1. d4 d5 2. c4 c5 3. cxd5 Nf6 d2d4 d7d5 c2c4 c7c5 c4d5 g8f6 rnbqkb1r/pp2pppp/5n2/2pP4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Austrian Defense, Haberditz Variation 1. d4 d5 2. c4 c5 3. cxd5 Nf6 4. e4 Nxe4 5. dxc5 Qa5+ d2d4 d7d5 c2c4 c7c5 c4d5 g8f6 e2e4 f6e4 d4c5 d8a5 rnb1kb1r/pp2pppp/8/q1PP4/4n3/8/PP3PPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Baltic Defense 1. d4 d5 2. c4 Bf5 d2d4 d7d5 c2c4 c8f5 rn1qkbnr/ppp1pppp/8/3p1b2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Baltic Defense, Argentinian Gambit 1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Qa4+ c6 5. dxc6 Nxc6 d2d4 d7d5 c2c4 c8f5 c4d5 f5b1 d1a4 c7c6 d5c6 b8c6 r2qkbnr/pp2pppp/2n5/8/Q2P4/8/PP2PPPP/RbB1KBNR w KQkq - +D06 Queen's Gambit Declined: Baltic Defense, Pseudo-Chigorin 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 Nc6 d2d4 d7d5 c2c4 c8f5 b1c3 e7e6 g1f3 b8c6 r2qkbnr/ppp2ppp/2n1p3/3p1b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D06 Queen's Gambit Declined: Baltic Defense, Queen Attack 1. d4 d5 2. c4 Bf5 3. Qb3 d2d4 d7d5 c2c4 c8f5 d1b3 rn1qkbnr/ppp1pppp/8/3p1b2/2PP4/1Q6/PP2PPPP/RNB1KBNR b KQkq - +D06 Queen's Gambit Declined: Baltic Defense, Queen Attack Deferred 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Qb3 d2d4 d7d5 c2c4 c8f5 b1c3 e7e6 d1b3 rn1qkbnr/ppp2ppp/4p3/3p1b2/2PP4/1QN5/PP2PPPP/R1B1KBNR b KQkq - +D06 Queen's Gambit Declined: Marshall Defense 1. d4 d5 2. c4 Nf6 d2d4 d7d5 c2c4 g8f6 rnbqkb1r/ppp1pppp/5n2/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Marshall Defense, Tan Gambit 1. d4 d5 2. c4 Nf6 3. cxd5 c6 d2d4 d7d5 c2c4 g8f6 c4d5 c7c6 rnbqkb1r/pp2pppp/2p2n2/3P4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - +D06 Queen's Gambit Declined: Zilbermints Gambit 1. d4 d5 2. c4 b5 d2d4 d7d5 c2c4 b7b5 rnbqkbnr/p1p1pppp/8/1p1p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense 1. d4 d5 2. c4 Nc6 d2d4 d7d5 c2c4 b8c6 r1bqkbnr/ppp1pppp/2n5/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense 1. d4 d5 2. c4 Nc6 3. Nc3 d2d4 d7d5 c2c4 b8c6 b1c3 r1bqkbnr/ppp1pppp/2n5/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +D07 Queen's Gambit Declined: Chigorin Defense 1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 d2d4 d7d5 c2c4 b8c6 b1c3 d5c4 r1bqkbnr/ppp1pppp/2n5/8/2pP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Exchange Variation 1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 d2d4 d7d5 c2c4 b8c6 c4d5 d8d5 r1b1kbnr/ppp1pppp/2n5/3q4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Exchange Variation, Costa's Line 1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. e3 e5 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 exd4 8. Ne2 d2d4 d7d5 c2c4 b8c6 c4d5 d8d5 e2e3 e7e5 b1c3 f8b4 c1d2 b4c3 d2c3 e5d4 g1e2 r1b1k1nr/ppp2ppp/2n5/3q4/3p4/2B1P3/PP2NPPP/R2QKB1R b KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Janowski Variation 1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3 d2d4 d7d5 c2c4 b8c6 b1c3 d5c4 g1f3 r1bqkbnr/ppp1pppp/2n5/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Lazard Gambit 1. d4 d5 2. c4 Nc6 3. Nf3 e5 d2d4 d7d5 c2c4 b8c6 g1f3 e7e5 r1bqkbnr/ppp2ppp/2n5/3pp3/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Main Line 1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 d2d4 d7d5 c2c4 b8c6 g1f3 c8g4 r2qkbnr/ppp1pppp/2n5/3p4/2PP2b1/5N2/PP2PPPP/RNBQKB1R w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Main Line, Alekhine Variation 1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. Qa4 d2d4 d7d5 c2c4 b8c6 g1f3 c8g4 d1a4 r2qkbnr/ppp1pppp/2n5/3p4/Q1PP2b1/5N2/PP2PPPP/RNB1KB1R b KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Modern Gambit 1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3 Nf6 d2d4 d7d5 c2c4 b8c6 b1c3 d5c4 g1f3 g8f6 r1bqkb1r/ppp1pppp/2n2n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D07 Queen's Gambit Declined: Chigorin Defense, Tartakower Gambit 1. d4 d5 2. c4 Nc6 3. Nc3 e5 d2d4 d7d5 c2c4 b8c6 b1c3 e7e5 r1bqkbnr/ppp2ppp/2n5/3pp3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit 1. d4 d5 2. c4 e5 d2d4 d7d5 c2c4 e7e5 rnbqkbnr/ppp2ppp/8/3pp3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Balogh Variation 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Qe7 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 d8e7 r1b1kbnr/ppp1qppp/2n5/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Janowski Variation 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 f6 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 f7f6 r1bqkbnr/ppp3pp/2n2p2/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Krenosz Variation 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Bg4 6. h3 Bxf3 7. Nxf3 Bb4+ 8. Bd2 Qe7 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 c8g4 h2h3 g4f3 d2f3 f8b4 c1d2 d8e7 r3k1nr/ppp1qppp/2n5/4P3/1bPp4/5N1P/PP1BPPP1/R2QKB1R w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Lasker Trap 1. d4 d5 2. c4 e5 3. dxe5 d4 4. e3 Bb4+ 5. Bd2 dxe3 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 e2e3 f8b4 c1d2 d4e3 rnbqk1nr/ppp2ppp/8/4P3/1bP5/4p3/PP1B1PPP/RN1QKBNR w KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Modern Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 r1bqkbnr/ppp2ppp/2n5/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R b KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Normal Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 rnbqkbnr/ppp2ppp/8/4P3/2Pp4/5N2/PP2PPPP/RNBQKB1R b KQkq - +D08 Queen's Gambit Declined: Albin Countergambit, Tartakower Defense 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 c5 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 c7c5 rnbqkbnr/pp3ppp/8/2p1P3/2Pp4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3 r1bqkbnr/ppp2ppp/2n5/4P3/2Pp4/5NP1/PP2PP1P/RNBQKB1R b KQkq - +D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Be6 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Be6 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3 c8e6 r2qkbnr/ppp2ppp/2n1b3/4P3/2Pp4/5NP1/PP2PP1P/RNBQKB1R w KQkq - +D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Bf5 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bf5 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3 c8f5 r2qkbnr/ppp2ppp/2n5/4Pb2/2Pp4/5NP1/PP2PP1P/RNBQKB1R w KQkq - +D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Bg4 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bg4 d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3 c8g4 r2qkbnr/ppp2ppp/2n5/4P3/2Pp2b1/5NP1/PP2PP1P/RNBQKB1R w KQkq - +D10 Slav Defense 1. d4 d5 2. c4 c6 d2d4 d7d5 c2c4 c7c6 rnbqkbnr/pp2pppp/2p5/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D10 Slav Defense 1. d4 d5 2. c4 c6 3. Nc3 d2d4 d7d5 c2c4 c7c6 b1c3 rnbqkbnr/pp2pppp/2p5/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +D10 Slav Defense 1. d4 d5 2. c4 c6 3. Nc3 dxc4 d2d4 d7d5 c2c4 c7c6 b1c3 d5c4 rnbqkbnr/pp2pppp/2p5/8/2pP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D10 Slav Defense: Diemer Gambit 1. c4 c6 2. e4 d5 3. d4 c2c4 c7c6 e2e4 d7d5 d2d4 rnbqkbnr/pp2pppp/2p5/3p4/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - +D10 Slav Defense: Exchange Variation 1. d4 d5 2. c4 c6 3. cxd5 d2d4 d7d5 c2c4 c7c6 c4d5 rnbqkbnr/pp2pppp/2p5/3P4/3P4/8/PP2PPPP/RNBQKBNR b KQkq - +D10 Slav Defense: Slav Gambit, Alekhine Attack 1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4 d2d4 d7d5 c2c4 c7c6 b1c3 d5c4 e2e4 rnbqkbnr/pp2pppp/2p5/8/2pPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +D10 Slav Defense: Winawer Countergambit 1. d4 d5 2. c4 c6 3. Nc3 e5 d2d4 d7d5 c2c4 c7c6 b1c3 e7e5 rnbqkbnr/pp3ppp/2p5/3pp3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D10 Slav Defense: Winawer Countergambit, Anti-Winawer Gambit 1. d4 d5 2. c4 c6 3. Nc3 e5 4. e4 d2d4 d7d5 c2c4 c7c6 b1c3 e7e5 e2e4 rnbqkbnr/pp3ppp/2p5/3pp3/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +D11 Slav Defense: Bonet Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c1g5 rnbqkb1r/pp2pppp/2p2n2/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R b KQkq - +D11 Slav Defense: Breyer Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd2 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1d2 rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/5N2/PP1NPPPP/R1BQKB1R b KQkq - +D11 Slav Defense: Modern Line 1. d4 d5 2. c4 c6 3. Nf3 d2d4 d7d5 c2c4 c7c6 g1f3 rnbqkbnr/pp2pppp/2p5/3p4/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +D11 Slav Defense: Quiet Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/4PN2/PP3PPP/RNBQKB1R b KQkq - +D11 Slav Defense: Quiet Variation, Pin Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8g4 rn1qkb1r/pp2pppp/2p2n2/3p4/2PP2b1/4PN2/PP3PPP/RNBQKB1R w KQkq - +D12 Slav Defense: Quiet Variation, Amsterdam Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Nc3 e6 7. Ne5 Nfd7 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 c4d5 c6d5 b1c3 e7e6 f3e5 f6d7 rn1qkb1r/pp1n1ppp/4p3/3pNb2/3P4/2N1P3/PP3PPP/R1BQKB1R w KQkq - +D12 Slav Defense: Quiet Variation, Landau Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Qb3 Qc8 7. Bd2 e6 8. Na3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 c4d5 c6d5 d1b3 d8c8 c1d2 e7e6 b1a3 rnq1kb1r/pp3ppp/4pn2/3p1b2/3P4/NQ2PN2/PP1B1PPP/R3KB1R b KQkq - +D12 Slav Defense: Quiet Variation, Schallopp Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 rn1qkb1r/pp2pppp/2p2n2/3p1b2/2PP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D13 Slav Defense: Exchange Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c4d5 c6d5 rnbqkb1r/pp2pppp/5n2/3p4/3P4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D13 Slav Defense: Exchange Variation, Schallopp Variation 1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. c4 c6 5. cxd5 cxd5 6. Nc3 d2d4 d7d5 g1f3 g8f6 e2e3 c8f5 c2c4 c7c6 c4d5 c6d5 b1c3 rn1qkb1r/pp2pppp/5n2/3p1b2/3P4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D14 Slav Defense: Exchange Variation, Symmetrical Line 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf5 d2d4 d7d5 c2c4 c7c6 c4d5 c6d5 b1c3 g8f6 g1f3 b8c6 c1f4 c8f5 r2qkb1r/pp2pppp/2n2n2/3p1b2/3P1B2/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D14 Slav Defense: Exchange Variation, Trifunovic Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Qb3 Bb4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c4d5 c6d5 b1c3 b8c6 c1f4 c8f5 e2e3 e7e6 d1b3 f8b4 r2qk2r/pp3ppp/2n1pn2/3p1b2/1b1P1B2/1QN1PN2/PP3PPP/R3KB1R w KQkq - +D15 Slav Defense: Alekhine Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e3 rnbqkb1r/pp2pppp/2p2n2/8/2pP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D15 Slav Defense: Chameleon Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 a7a6 rnbqkb1r/1p2pppp/p1p2n2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D15 Slav Defense: Chameleon Variation, Advance System 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 a7a6 c4c5 rnbqkb1r/1p2pppp/p1p2n2/2Pp4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D15 Slav Defense: Geller Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e4 rnbqkb1r/pp2pppp/2p2n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D15 Slav Defense: Geller Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 b5 6. e5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e4 b7b5 e4e5 rnbqkb1r/p3pppp/2p2n2/1p2P3/2pP4/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D15 Slav Defense: Schlechter Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 g7g6 rnbqkb1r/pp2pp1p/2p2np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D15 Slav Defense: Süchting Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 Qb6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d8b6 rnb1kb1r/pp2pppp/1qp2n2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D15 Slav Defense: Three Knights Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D15 Slav Defense: Two Knights Attack 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 rnbqkb1r/pp2pppp/2p2n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D16 Slav Defense: Alapin Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 rnbqkb1r/pp2pppp/2p2n2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R b KQkq - +D16 Slav Defense: Smyslov Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 b8a6 r1bqkb1r/pp2pppp/n1p2n2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq - +D16 Slav Defense: Soultanbeieff Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 e7e6 rnbqkb1r/pp3ppp/2p1pn2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq - +D16 Slav Defense: Steiner Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bg4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8g4 rn1qkb1r/pp2pppp/2p2n2/8/P1pP2b1/2N2N2/1P2PPPP/R1BQKB1R w KQkq - +D17 Slav Defense: Czech Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq - +D17 Slav Defense: Czech Variation, Bled Attack 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Nh4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3h4 rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP3N/2N5/1P2PPPP/R1BQKB1R b KQkq - +D17 Slav Defense: Czech Variation, Carlsbad Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 b8d7 e5c4 d8c7 g2g3 e7e5 r3kb1r/ppqn1ppp/2p2n2/4pb2/P1NP4/2N3P1/1P2PP1P/R1BQKB1R w KQkq - +D17 Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 g5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 b8d7 e5c4 d8c7 g2g3 e7e5 d4e5 d7e5 c1f4 f6d7 f1g2 g7g5 r3kb1r/ppqn1p1p/2p5/4nbp1/P1N2B2/2N3P1/1P2PPBP/R2QK2R w KQkq - +D17 Slav Defense: Czech Variation, Krause Attack 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 rn1qkb1r/pp2pppp/2p2n2/4Nb2/P1pP4/2N5/1P2PPPP/R1BQKB1R b KQkq - +D17 Slav Defense: Czech Variation, Krause Attack, Fazekas Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Na6 7. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 b8a6 e2e4 r2qkb1r/pp2pppp/n1p2n2/4Nb2/P1pPP3/2N5/1P3PPP/R1BQKB1R b KQkq - +D17 Slav Defense: Czech Variation, Wiesbaden Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 e7e6 rn1qkb1r/pp3ppp/2p1pn2/4Nb2/P1pP4/2N5/1P2PPPP/R1BQKB1R w KQkq - +D17 Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 7. f3 Bb4 8. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 e7e6 f2f3 f8b4 e2e4 rn1qk2r/pp3ppp/2p1pn2/4Nb2/PbpPP3/2N2P2/1P4PP/R1BQKB1R b KQkq - +D18 Slav Defense: Czech Variation, Classical System 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R b KQkq - +D18 Slav Defense: Czech Variation, Lasker Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Na6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 b8a6 r2qkb1r/pp2pppp/n1p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R w KQkq - +D19 Slav Defense: Czech Variation, Classical System, Main Line 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1 e8g8 d1e2 rn1q1rk1/pp3ppp/2p1pn2/5b2/PbBP4/2N1PN2/1P2QPPP/R1B2RK1 b - - +D19 Slav Defense: Czech Variation, Dutch Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1 rn1qk2r/pp3ppp/2p1pn2/5b2/PbBP4/2N1PN2/1P3PPP/R1BQ1RK1 b kq - +D19 Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Ne4 10. g4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1 e8g8 d1e2 f6e4 g2g4 rn1q1rk1/pp3ppp/2p1p3/5b2/PbBPn1P1/2N1PN2/1P2QP1P/R1B2RK1 b - - +D20 Queen's Gambit Accepted 1. d4 d5 2. c4 dxc4 d2d4 d7d5 c2c4 d5c4 rnbqkbnr/ppp1pppp/8/8/2pP4/8/PP2PPPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Accelerated Mannheim Variation 1. d4 d5 2. c4 dxc4 3. Qa4+ d2d4 d7d5 c2c4 d5c4 d1a4 rnbqkbnr/ppp1pppp/8/8/Q1pP4/8/PP2PPPP/RNB1KBNR b KQkq - +D20 Queen's Gambit Accepted: Central Variation, Alekhine System 1. d4 d5 2. c4 dxc4 3. e4 Nf6 d2d4 d7d5 c2c4 d5c4 e2e4 g8f6 rnbqkb1r/ppp1pppp/5n2/8/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, Greco Variation 1. d4 d5 2. c4 dxc4 3. e4 b5 d2d4 d7d5 c2c4 d5c4 e2e4 b7b5 rnbqkbnr/p1p1pppp/8/1p6/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, McDonnell Defense 1. d4 d5 2. c4 dxc4 3. e4 e5 d2d4 d7d5 c2c4 d5c4 e2e4 e7e5 rnbqkbnr/ppp2ppp/8/4p3/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, McDonnell Defense, Somov Gambit 1. d4 d5 2. c4 dxc4 3. e4 e5 4. Bxc4 d2d4 d7d5 c2c4 d5c4 e2e4 e7e5 f1c4 rnbqkbnr/ppp2ppp/8/4p3/2BPP3/8/PP3PPP/RNBQK1NR b KQkq - +D20 Queen's Gambit Accepted: Central Variation, Modern Defense 1. d4 d5 2. c4 dxc4 3. e4 Nc6 d2d4 d7d5 c2c4 d5c4 e2e4 b8c6 r1bqkbnr/ppp1pppp/2n5/8/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, Rubinstein Defense 1. d4 d5 2. c4 dxc4 3. e4 c5 d2d4 d7d5 c2c4 d5c4 e2e4 c7c5 rnbqkbnr/pp2pppp/8/2p5/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Central Variation, Rubinstein Defense, Yefimov Gambit 1. d4 d5 2. c4 dxc4 3. e4 c5 4. d5 b5 d2d4 d7d5 c2c4 d5c4 e2e4 c7c5 d4d5 b7b5 rnbqkbnr/p3pppp/8/1ppP4/2p1P3/8/PP3PPP/RNBQKBNR w KQkq - +D20 Queen's Gambit Accepted: Linares Variation 1. d4 d5 2. c4 dxc4 3. e4 c5 4. d5 Nf6 5. Nc3 b5 d2d4 d7d5 c2c4 d5c4 e2e4 c7c5 d4d5 g8f6 b1c3 b7b5 rnbqkb1r/p3pppp/5n2/1ppP4/2p1P3/2N5/PP3PPP/R1BQKBNR w KQkq - +D20 Queen's Gambit Accepted: Old Variation 1. d4 d5 2. c4 dxc4 3. e3 d2d4 d7d5 c2c4 d5c4 e2e3 rnbqkbnr/ppp1pppp/8/8/2pP4/4P3/PP3PPP/RNBQKBNR b KQkq - +D20 Queen's Gambit Accepted: Old Variation, Billinger Gambit 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. a3 d2d4 d7d5 c2c4 d5c4 e2e3 e7e5 f1c4 e5d4 d1b3 d8e7 a2a3 rnb1kbnr/ppp1qppp/8/8/2Bp4/PQ2P3/1P3PPP/RNB1K1NR b KQkq - +D20 Queen's Gambit Accepted: Old Variation, Christensen Gambit 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Nf3 d2d4 d7d5 c2c4 d5c4 e2e3 e7e5 f1c4 e5d4 d1b3 d8e7 g1f3 rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2PN2/PP3PPP/RNB1K2R b KQkq - +D20 Queen's Gambit Accepted: Old Variation, Korchnoi Gambit 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Kf1 d2d4 d7d5 c2c4 d5c4 e2e3 e7e5 f1c4 e5d4 d1b3 d8e7 e1f1 rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2P3/PP3PPP/RNB2KNR b kq - +D20 Queen's Gambit Accepted: Old Variation, Novikov Gambit 1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Nd2 d2d4 d7d5 c2c4 d5c4 e2e3 e7e5 f1c4 e5d4 d1b3 d8e7 b1d2 rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2P3/PP1N1PPP/R1B1K1NR b KQkq - +D20 Queen's Gambit Accepted: Saduleto Variation 1. d4 d5 2. c4 dxc4 3. e4 d2d4 d7d5 c2c4 d5c4 e2e4 rnbqkbnr/ppp1pppp/8/8/2pPP3/8/PP3PPP/RNBQKBNR b KQkq - +D20 Queen's Gambit Accepted: Schwartz Defense 1. d4 d5 2. c4 dxc4 3. e4 f5 d2d4 d7d5 c2c4 d5c4 e2e4 f7f5 rnbqkbnr/ppp1p1pp/8/5p2/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - +D21 Queen's Gambit Accepted: Alekhine Defense, Borisenko-Furman Variation 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e4 d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e4 rnbqkbnr/1pp1pppp/p7/8/2pPP3/5N2/PP3PPP/RNBQKB1R b KQkq - +D21 Queen's Gambit Accepted: Godes Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nd7 d2d4 d7d5 c2c4 d5c4 g1f3 b8d7 r1bqkbnr/pppnpppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D21 Queen's Gambit Accepted: Gunsberg Defense 1. d4 d5 2. c4 dxc4 3. Nf3 c5 d2d4 d7d5 c2c4 d5c4 g1f3 c7c5 rnbqkbnr/pp2pppp/8/2p5/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D21 Queen's Gambit Accepted: Normal Variation 1. d4 d5 2. c4 dxc4 3. Nf3 d2d4 d7d5 c2c4 d5c4 g1f3 rnbqkbnr/ppp1pppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +D21 Queen's Gambit Accepted: Slav Gambit 1. d4 d5 2. c4 dxc4 3. Nf3 b5 d2d4 d7d5 c2c4 d5c4 g1f3 b7b5 rnbqkbnr/p1p1pppp/8/1p6/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D22 Queen's Gambit Accepted: Alekhine Defense 1. d4 d5 2. c4 dxc4 3. Nf3 a6 d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 rnbqkbnr/1pp1pppp/p7/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D22 Queen's Gambit Accepted: Alekhine Defense, Alatortsev Variation 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Bg4 5. Bxc4 e6 6. d5 d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e3 c8g4 f1c4 e7e6 d4d5 rn1qkbnr/1pp2ppp/p3p3/3P4/2B3b1/4PN2/PP3PPP/RNBQK2R b KQkq - +D22 Queen's Gambit Accepted: Alekhine Defense, Haberditz Variation 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 b5 d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e3 b7b5 rnbqkbnr/2p1pppp/p7/1p6/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D23 Queen's Gambit Accepted 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 rnbqkb1r/ppp1pppp/5n2/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D23 Queen's Gambit Accepted: Mannheim Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 d1a4 rnbqkb1r/ppp1pppp/5n2/8/Q1pP4/5N2/PP2PPPP/RNB1KB1R b KQkq - +D24 Queen's Gambit Accepted: Bogoljubov Defense 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e4 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 b1c3 a7a6 e2e4 rnbqkb1r/1pp1pppp/p4n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D24 Queen's Gambit Accepted: Gunsberg Defense, Prianishenmo Gambit 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 c5 5. d5 e6 6. e4 exd5 7. e5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 b1c3 c7c5 d4d5 e7e6 e2e4 e6d5 e4e5 rnbqkb1r/pp3ppp/5n2/2ppP3/2p5/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D24 Queen's Gambit Accepted: Showalter Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 b1c3 rnbqkb1r/ppp1pppp/5n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D25 Queen's Gambit Accepted: Janowski-Larsen Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 c8g4 rn1qkb1r/ppp1pppp/5n2/8/2pP2b1/4PN2/PP3PPP/RNBQKB1R w KQkq - +D25 Queen's Gambit Accepted: Normal Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 rnbqkb1r/ppp1pppp/5n2/8/2pP4/4PN2/PP3PPP/RNBQKB1R b KQkq - +D25 Queen's Gambit Accepted: Smyslov Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 g7g6 rnbqkb1r/ppp1pp1p/5np1/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D25 Queen's Gambit Accepted: Winawer Defense 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Be6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 c8e6 rn1qkb1r/ppp1pppp/4bn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D26 Queen's Gambit Accepted: Classical Defense 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQK2R w KQkq - +D26 Queen's Gambit Accepted: Classical Defense, Normal Line 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 b kq - +D26 Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Development Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 b8c6 r1bqkb1r/pp3ppp/2n1pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq - +D26 Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Exchange Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O cxd4 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 c5d4 rnbqkb1r/pp3ppp/4pn2/8/2Bp4/4PN2/PP3PPP/RNBQ1RK1 w kq - +D26 Queen's Gambit Accepted: Classical, Furman Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. e4 b5 10. e5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 d1e2 a7a6 d4c5 f8c5 e1g1 b8c6 e3e4 b7b5 e4e5 r1bqk2r/5ppp/p1n1pn2/1pb1P3/2B5/5N2/PP2QPPP/RNB2RK1 b kq - +D26 Queen's Gambit Accepted: Normal Variation, Traditional System 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 rnbqkb1r/ppp2ppp/4pn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - +D27 Queen's Gambit Accepted: Classical Defense, Main Line 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq - +D27 Queen's Gambit Accepted: Classical Defense, Rubinstein Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. a4 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 a2a4 rnbqkb1r/1p3ppp/p3pn2/2p5/P1BP4/4PN2/1P3PPP/RNBQ1RK1 b kq - +D27 Queen's Gambit Accepted: Classical Defense, Russian Gambit 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O a6 7. e4 d2d4 d7d5 c2c4 d5c4 e2e3 g8f6 f1c4 e7e6 g1f3 c7c5 e1g1 a7a6 e3e4 rnbqkb1r/1p3ppp/p3pn2/2p5/2BPP3/5N2/PP3PPP/RNBQ1RK1 b kq - +D27 Queen's Gambit Accepted: Furman Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Bxc5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d4c5 f8c5 rnbqk2r/1p3ppp/p3pn2/2b5/2B5/4PN2/PP3PPP/RNBQ1RK1 w kq - +D28 Queen's Gambit Accepted: Classical Defense, Alekhine System 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP2QPPP/RNB2RK1 b kq - +D28 Queen's Gambit Accepted: Classical Defense, Alekhine System, No Main Line 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 rnbqkb1r/5ppp/p3pn2/1pp5/2BP4/4PN2/PP2QPPP/RNB2RK1 w kq - +D28 Queen's Gambit Accepted: Classical, Flohr Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Nc6 9. Rd1 c4 10. Bc2 Nb4 11. Nc3 Nxc2 12. Qxc2 Bb7 13. d5 Qc7 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 b8c6 f1d1 c5c4 b3c2 c6b4 b1c3 b4c2 e2c2 c8b7 d4d5 d8c7 r3kb1r/1bq2ppp/p3pn2/1p1P4/2p5/2N1PN2/PPQ2PPP/R1BR2K1 w kq - +D29 Queen's Gambit Accepted: Classical Defense, Alekhine System, Main Line 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 c8b7 rn1qkb1r/1b3ppp/p3pn2/1pp5/3P4/1B2PN2/PP2QPPP/RNB2RK1 w kq - +D29 Queen's Gambit Accepted: Classical Defense, Alekhine System, Smyslov Variation 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 9. Rd1 Nbd7 10. Nc3 Bd6 d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 c8b7 f1d1 b8d7 b1c3 f8d6 r2qk2r/1b1n1ppp/p2bpn2/1pp5/3P4/1BN1PN2/PP2QPPP/R1BR2K1 w kq - +D30 French Defense: Diemer-Duhm Gambit 1. d4 d5 2. c4 e6 3. e4 dxe4 d2d4 d7d5 c2c4 e7e6 e2e4 d5e4 rnbqkbnr/ppp2ppp/4p3/8/2PPp3/8/PP3PPP/RNBQKBNR w KQkq - +D30 Queen's Gambit Declined 1. d4 d5 2. c4 e6 d2d4 d7d5 c2c4 e7e6 rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +D30 Queen's Gambit Declined: Capablanca Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 h6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 c1g5 h7h6 rnbqkb1r/ppp2pp1/4pn1p/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R w KQkq - +D30 Queen's Gambit Declined: Capablanca Variation 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Bg5 c6 5. Nbd2 Nbd7 6. e3 d2d4 g8f6 g1f3 e7e6 c2c4 d7d5 c1g5 c7c6 b1d2 b8d7 e2e3 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/4PN2/PP1N1PPP/R2QKB1R b KQkq - +D30 Queen's Gambit Declined: Semmering Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Nbd7 6. Bd3 c5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 e7e6 b1d2 b8d7 f1d3 c6c5 r1bqkb1r/pp1n1ppp/4pn2/2pp4/2PP4/3BPN2/PP1N1PPP/R1BQK2R w KQkq - +D30 Queen's Gambit Declined: Spielmann Variation 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 c6 5. Nbd2 g6 d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 e2e3 c7c6 b1d2 g7g6 rnbqkb1r/pp3p1p/2p1pnp1/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R w KQkq - +D30 Queen's Gambit Declined: Stonewall Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Ne4 6. Bd3 f5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 e7e6 b1d2 f6e4 f1d3 f7f5 rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/3BPN2/PP1N1PPP/R1BQK2R w KQkq - +D30 Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch 1. d4 d5 2. c4 e6 3. Nf3 c5 d2d4 d7d5 c2c4 e7e6 g1f3 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +D30 Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch Bishop Attack 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Bg5 d2d4 d7d5 c2c4 e7e6 g1f3 c7c5 c4d5 e6d5 c1g5 rnbqkbnr/pp3ppp/8/2pp2B1/3P4/5N2/PP2PPPP/RN1QKB1R b KQkq - +D30 Queen's Gambit Declined: Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R b KQkq - +D30 Queen's Gambit Declined: Vienna Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Bb4+ d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 c1g5 f8b4 rnbqk2r/ppp2ppp/4pn2/3p2B1/1bPP4/5N2/PP2PPPP/RN1QKB1R w KQkq - +D30 Semi-Slav Defense: Quiet Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 e7e6 b1d2 rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R b KQkq - +D30 Semi-Slav Defense: Quiet Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Nbd7 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 e7e6 b1d2 b8d7 r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R w KQkq - +D31 Queen's Gambit Declined: Alapin Variation 1. d4 e6 2. c4 b6 3. Nc3 d5 d2d4 e7e6 c2c4 b7b6 b1c3 d7d5 rnbqkbnr/p1p2ppp/1p2p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D31 Queen's Gambit Declined: Charousek Variation 1. d4 d5 2. c4 e6 3. Nc3 Be7 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 rnbqk1nr/ppp1bppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D31 Queen's Gambit Declined: Charousek Variation, Miladinovic Gambit 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. e4 dxe4 5. f3 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 e2e4 d5e4 f2f3 rnbqk1nr/ppp1bppp/4p3/8/2PPp3/2N2P2/PP4PP/R1BQKBNR b KQkq - +D31 Queen's Gambit Declined: Janowski Variation 1. d4 d5 2. c4 e6 3. Nc3 a6 d2d4 d7d5 c2c4 e7e6 b1c3 a7a6 rnbqkbnr/1pp2ppp/p3p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D31 Queen's Gambit Declined: Queen's Knight Variation 1. d4 d5 2. c4 e6 3. Nc3 d2d4 d7d5 c2c4 e7e6 b1c3 rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +D31 Queen's Gambit Declined: Semi-Slav, Abrahams Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 a5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 a2a4 f8b4 e2e3 b7b5 c1d2 a7a5 rnbqk1nr/5ppp/2p1p3/pp6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - +D31 Queen's Gambit Declined: Semi-Slav, Junge Variation 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nc3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 Qb6 d2d4 d7d5 c2c4 e7e6 g1f3 c7c6 b1c3 d5c4 a2a4 f8b4 e2e3 b7b5 c1d2 d8b6 rnb1k1nr/p4ppp/1qp1p3/1p6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - +D31 Queen's Gambit Declined: Semi-Slav, Koomen Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. Bd2 Qe7 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 e2e3 b7b5 a2a4 f8b4 c1d2 d8e7 rnb1k1nr/p3qppp/2p1p3/1p6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - +D31 Queen's Gambit Declined: Uhlmann Variation 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. Rc1 dxc4 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 a1c1 d5c4 rnbq1rk1/ppp1bpp1/4pn1p/8/2pP3B/2N2N2/PP2PPPP/2RQKB1R w K - +D31 Semi-Slav Defense: Accelerated Move Order 1. d4 d5 2. c4 e6 3. Nc3 c6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 rnbqkbnr/pp3ppp/2p1p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D31 Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e3 f7f5 g2g4 rnbqkbnr/pp4pp/2p1p3/3p1p2/2PP2P1/2N1P3/PP3P1P/R1BQKBNR b KQkq - +D31 Semi-Slav Defense: Gunderam Gambit 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. f3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 d5e4 f2f3 rnbqkbnr/pp3ppp/2p1p3/8/2PPp3/2N2P2/PP4PP/R1BQKBNR b KQkq - +D31 Semi-Slav Defense: Marshall Gambit 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 rnbqkbnr/pp3ppp/2p1p3/3p4/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +D31 Semi-Slav Defense: Marshall Gambit, Forgotten Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 d5e4 c3e4 f8b4 e4c3 rnbqk1nr/pp3ppp/2p1p3/8/1bPP4/2N5/PP3PPP/R1BQKBNR b KQkq - +D31 Semi-Slav Defense: Marshall Gambit, Main Line 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 d5e4 c3e4 f8b4 c1d2 rnbqk1nr/pp3ppp/2p1p3/8/1bPPN3/8/PP1B1PPP/R2QKBNR b KQkq - +D31 Semi-Slav Defense: Marshall Gambit, Tolush Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 c5 9. Bxc5 Qxg2 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4 d5e4 c3e4 f8b4 c1d2 d8d4 d2b4 d4e4 f1e2 c6c5 b4c5 e4g2 rnb1k1nr/pp3ppp/4p3/2B5/2P5/8/PP2BPqP/R2QK1NR w KQkq - +D31 Semi-Slav Defense: Noteboom Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 rnbqkbnr/pp3ppp/2p1p3/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D31 Semi-Slav Defense: Noteboom Variation, Abrahams Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 Bxc3+ 7. bxc3 b5 8. axb5 cxb5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 a2a4 f8b4 e2e3 b4c3 b2c3 b7b5 a4b5 c6b5 rnbqk1nr/p4ppp/4p3/1p6/2pP4/2P1PN2/5PPP/R1BQKB1R w KQkq - +D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Gambit 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. g3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 g2g3 rnbqkbnr/pp3ppp/2p1p3/8/2pP4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 c1g5 rnbqkbnr/pp3ppp/2p1p3/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 f6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 c1g5 f7f6 rnbqkbnr/pp4pp/2p1pp2/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D32 Queen's Gambit Declined: Tarrasch Defense 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 rnbqkbnr/pp3ppp/8/2pp4/3P4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D32 Tarrasch Defense 1. d4 d5 2. c4 e6 3. Nc3 c5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 rnbqkbnr/pp3ppp/4p3/2pp4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D32 Tarrasch Defense: Grünfeld Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. dxc5 d4 7. Na4 b5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 d4c5 d5d4 c3a4 b7b5 r1bqkbnr/p4ppp/2n5/1pP5/N2p4/5N2/PP2PPPP/R1BQKB1R w KQkq b6 +D32 Tarrasch Defense: Marshall Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. e4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 e2e4 rnbqkbnr/pp3ppp/8/2pp4/3PP3/2N5/PP3PPP/R1BQKBNR b KQkq - +D32 Tarrasch Defense: Schara Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 c5d4 rnbqkbnr/pp3ppp/4p3/3P4/3p4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D32 Tarrasch Defense: Tarrasch Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. dxc5 d4 6. Na4 b5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 d4c5 d5d4 c3a4 b7b5 rnbqkbnr/p4ppp/8/1pP5/N2p4/8/PP2PPPP/R1BQKBNR w KQkq b6 +D32 Tarrasch Defense: Two Knights Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 rnbqkbnr/pp3ppp/8/2pp4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D32 Tarrasch Defense: von Hennig Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd1 exd5 7. Qxd5 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 c5d4 d1d4 b8c6 d4d1 e6d5 d1d5 c8e6 r2qkbnr/pp3ppp/2n1b3/3Q4/8/2N5/PP2PPPP/R1B1KBNR w KQkq - +D33 Tarrasch Defense: Prague Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 r1bqkb1r/pp3ppp/2n2n2/2pp4/3P4/2N2NP1/PP2PP1P/R1BQKB1R w KQkq - +D33 Tarrasch Defense: Rubinstein System 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 r1bqkbnr/pp3ppp/2n5/2pp4/3P4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +D33 Tarrasch Defense: Swedish Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 c4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 c5c4 r1bqkbnr/pp3ppp/2n5/3p4/2pP4/2N2NP1/PP2PP1P/R1BQKB1R w KQkq - +D33 Tarrasch Defense: Swedish Variation, Central Break 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 c4 7. e4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 c5c4 e2e4 r1bqkbnr/pp3ppp/2n5/3p4/2pPP3/2N2NP1/PP3P1P/R1BQKB1R b KQkq - +D33 Tarrasch Defense: Wagner Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Bg4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 c8g4 r2qkb1r/pp3ppp/2n2n2/2pp4/3P2b1/2N2NP1/PP2PPBP/R1BQK2R w KQkq - +D34 Queen's Gambit Declined: Tarrasch Defense, Stoltz Variation 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. Nc3 O-O 9. Bg5 Be6 10. Rc1 b6 d2d4 d7d5 c2c4 e7e6 g1f3 c7c5 c4d5 e6d5 g2g3 b8c6 f1g2 g8f6 e1g1 f8e7 b1c3 e8g8 c1g5 c8e6 a1c1 b7b6 r2q1rk1/p3bppp/1pn1bn2/2pp2B1/3P4/2N2NP1/PP2PPBP/2RQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 r1bq1rk1/pp2bppp/2n2n2/2pp4/3P4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Advance Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 c4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5c4 r1bq1rk1/pp2bppp/2n2n2/3p2B1/2pP4/2N2NP1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Bogoljubov Variation 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. Nf3 d5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be6 10. Rc1 c4 d2d4 g8f6 c2c4 e7e6 b1c3 c7c5 g1f3 d7d5 c4d5 e6d5 g2g3 b8c6 f1g2 f8e7 e1g1 e8g8 c1g5 c8e6 a1c1 c5c4 r2q1rk1/pp2bppp/2n1bn2/3p2B1/2pP4/2N2NP1/PP2PPBP/2RQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Carlsbad Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 r1bq1rk1/pp2bppp/2n2n2/2pp2B1/3P4/2N2NP1/PP2PPBP/R2Q1RK1 b - - +D34 Tarrasch Defense: Classical Variation, Chandler Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5d4 f3d4 h7h6 g5e3 f8e8 a1c1 c8e6 r2qr1k1/pp2bpp1/2n1bn1p/3p4/3N4/2N1B1P1/PP2PPBP/2RQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Classical Tarrasch Gambit 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 d4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 d4c5 d5d4 r1bq1rk1/pp2bppp/2n2n2/2P5/3p4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Endgame Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c8e6 r2q1rk1/pp2bppp/2n1bn2/2pp2B1/3P4/2N2NP1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Main Line 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5d4 f3d4 h7h6 g5e3 f8e8 r1bqr1k1/pp2bpp1/2n2n1p/3p4/3N4/2N1B1P1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Petursson Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 Re8 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5d4 f3d4 f8e8 r1bqr1k1/pp2bppp/2n2n2/3p2B1/3N4/2N3P1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Classical Variation, Réti Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 Bxc5 10. Na4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 d4c5 e7c5 c3a4 r1bq1rk1/pp3ppp/2n2n2/2bp4/N7/5NP1/PP2PPBP/R1BQ1RK1 b - - +D34 Tarrasch Defense: Classical Variation, Spassky Variation 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Bg4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c5d4 f3d4 h7h6 g5e3 c8g4 r2q1rk1/pp2bpp1/2n2n1p/3p4/3N2b1/2N1B1P1/PP2PPBP/R2Q1RK1 w - - +D34 Tarrasch Defense: Prague Variation, Main Line 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 r1bqk2r/pp2bppp/2n2n2/2pp4/3P4/2N2NP1/PP2PPBP/R1BQK2R w KQkq - +D35 Queen's Gambit Declined: Exchange Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 rnbqkb1r/ppp2ppp/4pn2/3P4/3P4/2N5/PP2PPPP/R1BQKBNR b KQkq - +D35 Queen's Gambit Declined: Exchange Variation, Positional Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 e6d5 c1g5 rnbqkb1r/ppp2ppp/5n2/3p2B1/3P4/2N5/PP2PPPP/R2QKBNR b KQkq - +D35 Queen's Gambit Declined: Exchange Variation, Positional Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 e6d5 c1g5 c7c6 rnbqkb1r/pp3ppp/2p2n2/3p2B1/3P4/2N5/PP2PPPP/R2QKBNR w KQkq - +D35 Queen's Gambit Declined: Exchange Variation, Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bf4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 b8d7 c4d5 e6d5 c1f4 r1bqkb1r/pppn1ppp/5n2/3p4/3P1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D35 Queen's Gambit Declined: Exchange, Chameleon Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nbd7 8. Qc2 Re8 9. Nge2 Nf8 10. O-O-O d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 e6d5 c1g5 f8e7 e2e3 e8g8 f1d3 b8d7 d1c2 f8e8 g1e2 d7f8 e1c1 r1bqrnk1/ppp1bppp/5n2/3p2B1/3P4/2NBP3/PPQ1NPPP/2KR3R b - - +D35 Queen's Gambit Declined: Harrwitz Attack 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bf4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1f4 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP1B2/2N5/PP2PPPP/R2QKBNR b KQkq - +D35 Queen's Gambit Declined: Normal Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D36 Queen's Gambit Declined: Exchange Variation, Reshevsky Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c4d5 e6d5 c1g5 c7c6 d1c2 rnbqkb1r/pp3ppp/2p2n2/3p2B1/3P4/2N5/PPQ1PPPP/R3KBNR b KQkq - +D37 Queen's Gambit Declined: Barmen Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 b8d7 r1bqkb1r/pppn1ppp/4pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D37 Queen's Gambit Declined: Harrwitz Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 rnbqk2r/ppp1bppp/4pn2/3p4/2PP1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D37 Queen's Gambit Declined: Harrwitz Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Qc2 Nc6 9. Rd1 Qa5 10. a3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 e8g8 e2e3 c7c5 d4c5 e7c5 d1c2 b8c6 a1d1 d8a5 a2a3 r1b2rk1/pp3ppp/2n1pn2/q1bp4/2P2B2/P1N1PN2/1PQ2PPP/3RKB1R b K - +D37 Queen's Gambit Declined: Harrwitz Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Qc2 Nc6 9. a3 Qa5 10. O-O-O d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 e8g8 e2e3 c7c5 d4c5 e7c5 d1c2 b8c6 a2a3 d8a5 e1c1 r1b2rk1/pp3ppp/2n1pn2/q1bp4/2P2B2/P1N1PN2/1PQ2PPP/2KR1B1R b - - +D37 Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bf4 O-O 6. e3 b6 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1f4 e8g8 e2e3 b7b6 rnbq1rk1/p1p1bppp/1p2pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - +D37 Queen's Gambit Declined: Harrwitz Attack, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 e8g8 e2e3 c7c5 d4c5 e7c5 rnbq1rk1/pp3ppp/4pn2/2bp4/2P2B2/2N1PN2/PP3PPP/R2QKB1R w KQ - +D37 Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 O-O 6. e3 c6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 f8e7 c1f4 e8g8 e2e3 c7c6 rnbq1rk1/pp2bppp/2p1pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - +D37 Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1f4 e8g8 e2e3 b8d7 r1bq1rk1/pppnbppp/4pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - +D37 Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. c5 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 g1f3 f8e7 c1f4 e8g8 e2e3 b8d7 c4c5 r1bq1rk1/pppnbppp/4pn2/2Pp4/3P1B2/2N1PN2/PP3PPP/R2QKB1R b KQ - +D37 Queen's Gambit Declined: Knight Defense, Alekhine Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bg5 h6 6. Bh4 dxc4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 b8d7 c1g5 h7h6 g5h4 d5c4 r1bqkb1r/pppn1pp1/4pn1p/8/2pP3B/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D37 Queen's Gambit Declined: Miles Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 d1c2 rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N2N2/PPQ1PPPP/R3KB1R b KQ - +D37 Queen's Gambit Declined: Three Knights Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D37 Queen's Gambit Declined: Vienna Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 d5c4 rnbqkb1r/ppp2ppp/4pn2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D37 Queen's Gambit Declined: Vienna Variation, Quiet Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 d5c4 e2e3 rnbqkb1r/ppp2ppp/4pn2/8/2pP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D38 Queen's Gambit Declined: Ragozin Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8b4 rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D38 Queen's Gambit Declined: Ragozin Defense, Alekhine Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8b4 d1a4 rnbqk2r/ppp2ppp/4pn2/3p4/QbPP4/2N2N2/PP2PPPP/R1B1KB1R b KQkq - +D38 Queen's Gambit Declined: Westphalian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 Nbd7 6. e3 c5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8b4 c1g5 b8d7 e2e3 c7c5 r1bqk2r/pp1n1ppp/4pn2/2pp2B1/1bPP4/2N1PN2/PP3PPP/R2QKB1R w KQkq - +D39 Queen's Gambit Declined: Ragozin Defense, Vienna Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8b4 c1g5 d5c4 rnbqk2r/ppp2ppp/4pn2/6B1/1bpP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D40 Queen's Gambit Declined: Semi-Tarrasch Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 rnbqkb1r/pp3ppp/4pn2/2pp4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Levenfish Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. e3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. Qe2 Qe7 9. dxc5 Bxc5 10. e4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 e2e3 b8c6 f1d3 f8d6 e1g1 e8g8 d1e2 d8e7 d4c5 d6c5 e3e4 r1b2rk1/pp2qppp/2n1pn2/2bp4/2P1P3/2NB1N2/PP2QPPP/R1B2RK1 b - - +D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. Bg5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c1g5 rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Symmetrical Variation 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. e3 c5 5. d4 Nc6 6. Bd3 Bd6 7. O-O O-O c2c4 g8f6 b1c3 e7e6 g1f3 d7d5 e2e3 c7c5 d2d4 b8c6 f1d3 f8d6 e1g1 e8g8 r1bq1rk1/pp3ppp/2nbpn2/2pp4/2PP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 c4d5 rnbqkb1r/pp3ppp/4pn2/2pP4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 c4d5 f6d5 e2e4 rnbqkb1r/pp3ppp/4p3/2pn4/3PP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Kmoch Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bb5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c4d5 f6d5 e2e4 d5c3 b2c3 c5d4 c3d4 f8b4 c1d2 b4d2 d1d2 e8g8 f1b5 rnbq1rk1/pp3ppp/4p3/1B6/3PP3/5N2/P2Q1PPP/R3K2R b KQ - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 c4d5 f6d5 e2e3 rnbqkb1r/pp3ppp/4p3/2pn4/3P4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D41 Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 cxd4 8. cxd4 Bb4+ 9. Bd2 Qa5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c4d5 f6d5 e2e4 d5c3 b2c3 c7c5 g1f3 c5d4 c3d4 f8b4 c1d2 d8a5 rnb1k2r/pp3ppp/4p3/q7/1b1PP3/5N2/P2B1PPP/R2QKB1R w KQkq - +D42 Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c5 c4d5 f6d5 e2e3 b8c6 f1d3 r1bqkb1r/pp3ppp/2n1p3/2pn4/3P4/2NBPN2/PP3PPP/R1BQK2R b KQkq - +D43 Queen's Gambit Declined: Hastings Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. Qb3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 h7h6 g5f6 d8f6 d1b3 rnb1kb1r/pp3pp1/2p1pq1p/3p4/2PP4/1QN2N2/PP2PPPP/R3KB1R b KQkq - +D43 Semi-Slav Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D43 Semi-Slav Defense: Anti-Moscow Gambit 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 h7h6 g5h4 rnbqkb1r/pp3pp1/2p1pn1p/3p4/2PP3B/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D44 Semi-Slav Defense Accepted 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 rnbqkb1r/pp3ppp/2p1pn2/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - +D44 Semi-Slav Defense: Botvinnik Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 e2e4 rnbqkb1r/pp3ppp/2p1pn2/6B1/2pPP3/2N2N2/PP3PPP/R2QKB1R b KQkq - +D44 Semi-Slav Defense: Botvinnik Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 rnbqkb1r/p4p2/2p1pn1p/1p2P1N1/2pP3B/2N5/PP3PPP/R2QKB1R b KQkq - +D44 Semi-Slav Defense: Botvinnik Variation, Alatortsev System 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 Nd5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 f6d5 rnbqkb1r/p4p2/2p1p2p/1p1nP1N1/2pP3B/2N5/PP3PPP/R2QKB1R w KQkq - +D44 Semi-Slav Defense: Botvinnik Variation, Ekstrom Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. exf6 gxh4 10. Ne5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 e5f6 g5h4 f3e5 rnbqkb1r/p4p2/2p1pP1p/1p2N3/2pP3p/2N5/PP3PPP/R2QKB1R b KQkq - +D44 Semi-Slav Defense: Botvinnik Variation, Lilienthal Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. g3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 h6g5 h4g5 b8d7 g2g3 r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N3P1/PP3P1P/R2QKB1R b KQkq - +D44 Semi-Slav Defense: Botvinnik Variation, Szabo Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. Qf3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 h6g5 h4g5 b8d7 d1f3 r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N2Q2/PP3PPP/R3KB1R b KQkq - +D45 Semi-Slav Defense: Accelerated Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 a7a6 rnbqkb1r/1p3ppp/p1p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - +D45 Semi-Slav Defense: Main Line 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D45 Semi-Slav Defense: Normal Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - +D45 Semi-Slav Defense: Rubinstein System 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Ne5 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 g8f6 e2e3 b8d7 f3e5 r1bqkb1r/pp1n1ppp/2p1pn2/3pN3/2PP4/2N1P3/PP3PPP/R1BQKB1R b KQkq - +D45 Semi-Slav Defense: Stoltz Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 d1c2 r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2N1PN2/PPQ2PPP/R1B1KB1R b KQkq - +D45 Semi-Slav Defense: Stoltz Variation, Center Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 d1c2 f8d6 e3e4 r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PPP3/2N2N2/PPQ2PPP/R1B1KB1R b KQkq - +D45 Semi-Slav Defense: Stoltz Variation, Center Variation, Mikhalchishin Line 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 e5 10. dxe5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 d1c2 f8d6 e3e4 d5e4 c3e4 f6e4 c2e4 e6e5 d4e5 r1bqk2r/pp1n1ppp/2pb4/4P3/2P1Q3/5N2/PP3PPP/R1B1KB1R b KQkq - +D45 Semi-Slav Defense: Stoltz Variation, Shabalov Attack 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 d1c2 f8d6 g2g4 r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP2P1/2N1PN2/PPQ2P1P/R1B1KB1R b KQkq - +D45 Semi-Slav Defense: Stonewall Defense 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Ne4 6. Bd3 f5 d2d4 d7d5 g1f3 g8f6 c2c4 c7c6 b1c3 e7e6 e2e3 f6e4 f1d3 f7f5 rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D46 Semi-Slav Defense: Bogoljubov Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Be7 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 f8e7 r1bqk2r/pp1nbppp/2p1pn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D46 Semi-Slav Defense: Chigorin Defense 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bd6 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 f8d6 r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D46 Semi-Slav Defense: Main Line 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQkq - +D46 Semi-Slav Defense: Romih Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bb4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 f8b4 r1bqk2r/pp1n1ppp/2p1pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 r1bqkb1r/p2n1ppp/2p1pn2/1p6/2BP4/2N1PN2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Meran Variation, Lundin Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 b4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 b5b4 r1bqkb1r/p2n1ppp/2p1pn2/8/1p1P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Meran Variation, Wade Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 c8b7 r2qkb1r/pb1n1ppp/2p1pn2/1p6/3P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Meran Variation, Wade Variation, Kaidanov Gambit 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12. O-O cxd4 13. Nxd4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 c8b7 e3e4 b5b4 c3a4 c6c5 e4e5 f6d5 e1g1 c5d4 f3d4 r2qkb1r/pb1n1ppp/4p3/3nP3/Np1N4/3B4/PP3PPP/R1BQ1RK1 b kq - +D47 Semi-Slav Defense: Meran Variation, Wade Variation, Larsen Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 c8b7 e3e4 b5b4 c3a4 c6c5 e4e5 f6d5 r2qkb1r/pb1n1ppp/4p3/2pnP3/Np1P4/3B1N2/PP3PPP/R1BQK2R w KQkq - +D47 Semi-Slav Defense: Semi-Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 r1bqkb1r/pp1n1ppp/2p1pn2/8/2BP4/2N1PN2/PP3PPP/R1BQK2R b KQkq - +D48 Semi-Slav Defense: Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 r1bqkb1r/3n1ppp/p1p1pn2/1p6/3P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - +D48 Semi-Slav Defense: Meran Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 r1bqkb1r/3n1ppp/p3pn2/1pp5/3PP3/2NB1N2/PP3PPP/R1BQK2R w KQkq - +D48 Semi-Slav Defense: Meran Variation, Old Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 r1bqkb1r/3n1ppp/p3pn2/1pp1P3/3P4/2NB1N2/PP3PPP/R1BQK2R b KQkq - +D48 Semi-Slav Defense: Meran Variation, Pirc Variation 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e3 g8f6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 b5b4 r1bqkb1r/3n1ppp/p1p1pn2/8/1p1PP3/2NB1N2/PP3PPP/R1BQK2R w KQkq - +D48 Semi-Slav Defense: Meran Variation, Reynolds' Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 d4d5 r1bqkb1r/3n1ppp/p3pn2/1ppP4/4P3/2NB1N2/PP3PPP/R1BQK2R b KQkq - +D49 Semi-Slav Defense: Meran Variation, Blumenfeld Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 r1bqkb1r/3n1ppp/p3pn2/1N2P3/3p4/3B1N2/PP3PPP/R1BQK2R b KQkq - +D49 Semi-Slav Defense: Meran Variation, Rabinovich Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Ng4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 f6g4 r1bqkb1r/3n1ppp/p3p3/1N2P3/3p2n1/3B1N2/PP3PPP/R1BQK2R w KQkq - +D49 Semi-Slav Defense: Meran Variation, Rellstab Attack 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O Qd5 14. Qe2 Ba6 15. Bg5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 g1f3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 e1g1 d8d5 d1e2 c8a6 c1g5 r3kb1r/5ppp/b3pn2/1p1qN1B1/3p4/3B4/PP2QPPP/R4RK1 b kq - +D49 Semi-Slav Defense: Meran Variation, Sozin Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 r1bqkb1r/5ppp/p3pn2/1N2n3/3p4/3B1N2/PP3PPP/R1BQK2R w KQkq - +D49 Semi-Slav Defense: Meran Variation, Sozin Variation 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O d2d4 d7d5 g1f3 g8f6 c2c4 c7c6 b1c3 e7e6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 e1g1 r1bqkb1r/5ppp/4pn2/1p2N3/3p4/3B4/PP3PPP/R1BQ1RK1 b kq - +D49 Semi-Slav Defense: Meran Variation, Stahlberg Variation 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. Qf3 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 e7e6 g1f3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 d1f3 r1bqkb1r/5ppp/4pn2/1p2N3/3p4/3B1Q2/PP3PPP/R1B1K2R b KQkq - +D50 Queen's Gambit Declined: Been-Koomen Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - +D50 Queen's Gambit Declined: Modern Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - +D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. cxd5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 c4d5 rnbqkb1r/pp3ppp/4pn2/2pP2B1/3P4/2N5/PP2PPPP/R2QKBNR b KQkq - +D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation, Canal Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. cxd5 Qb6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 c4d5 d8b6 rnb1kb1r/pp3ppp/1q2pn2/2pP2B1/3P4/2N5/PP2PPPP/R2QKBNR w KQkq - +D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation, Primitive Pillsbury Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. Nf3 cxd4 6. Qxd4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 g1f3 c5d4 d1d4 rnbqkb1r/pp3ppp/4pn2/3p2B1/2PQ4/2N2N2/PP2PPPP/R3KB1R b KQkq - +D50 Queen's Gambit Declined: Semi-Tarrasch Defense, Krause Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. Nf3 cxd4 6. Nxd4 e5 7. Ndb5 a6 8. Qa4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 g1f3 c5d4 f3d4 e6e5 d4b5 a7a6 d1a4 rnbqkb1r/1p3ppp/p4n2/1N1pp1B1/Q1P5/2N5/PP2PPPP/R3KB1R b KQkq - +D51 Queen's Gambit Declined: Alekhine Variation 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. e4 c2c4 e7e6 b1c3 d7d5 d2d4 g8f6 c1g5 b8d7 g1f3 c7c6 e2e4 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PPP3/2N2N2/PP3PPP/R2QKB1R b KQkq - +D51 Queen's Gambit Declined: Capablanca Variation, Anti-Cambridge Springs Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. a3 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 a2a3 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/P1N1P3/1P3PPP/R2QKBNR b KQkq - +D51 Queen's Gambit Declined: Manhattan Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Bb4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 f8b4 r1bqk2r/pppn1ppp/4pn2/3p2B1/1bPP4/2N1P3/PP3PPP/R2QKBNR w KQkq - +D51 Queen's Gambit Declined: Modern Variation, Knight Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 r1bqkb1r/pppn1ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - +D51 Queen's Gambit Declined: Modern Variation, Knight Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 r1bqkb1r/pppn1ppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR b KQkq - +D51 Queen's Gambit Declined: Modern Variation, Knight Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR w KQkq - +D51 Queen's Gambit Declined: Rochlin Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. Rc1 Qa5 7. Bd2 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 g1f3 c7c6 a1c1 d8a5 g5d2 r1b1kb1r/pp1n1ppp/2p1pn2/q2p4/2PP4/2N2N2/PP1BPPPP/2RQKB1R b Kkq - +D52 Queen's Gambit Declined 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 r1b1kb1r/pp1n1ppp/2p1pn2/q2p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 c4d5 r1b1kb1r/pp1n1ppp/2p1pn2/q2P2B1/3P4/2N1PN2/PP3PPP/R2QKB1R b KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Argentine Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Bh4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 f3d2 f8b4 d1c2 e8g8 g5h4 r1b2rk1/pp1n1ppp/2p1pn2/q2p4/1bPP3B/2N1P3/PPQN1PPP/R3KB1R b KQ - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Bogoljubov Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 f3d2 f8b4 d1c2 r1b1k2r/pp1n1ppp/2p1pn2/q2p2B1/1bPP4/2N1P3/PPQN1PPP/R3KB1R b KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Capablanca Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Bxf6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 g5f6 r1b1kb1r/pp1n1ppp/2p1pB2/q2p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Rubinstein Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 dxc4 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 f3d2 d5c4 r1b1kb1r/pp1n1ppp/2p1pn2/q5B1/2pP4/2N1P3/PP1N1PPP/R2QKB1R w KQkq - +D52 Queen's Gambit Declined: Cambridge Springs Defense, Yugoslav Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 e7e6 c1g5 b8d7 e2e3 d8a5 c4d5 f6d5 r1b1kb1r/pp1n1ppp/2p1p3/q2n2B1/3P4/2N1PN2/PP3PPP/R2QKB1R w KQkq - +D53 Queen's Gambit Declined 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 rnbqk2r/ppp1bppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - +D53 Queen's Gambit Declined: Lasker Defense 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 Ne4 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c1g5 f8e7 e2e3 f6e4 rnbqk2r/ppp1bppp/4p3/3p2B1/2PPn3/2N1P3/PP3PPP/R2QKBNR w KQkq - +D53 Queen's Gambit Declined: Modern Variation, Heral Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 g5f6 rnbqk2r/ppp1bppp/4pB2/3p4/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - +D54 Queen's Gambit Declined: Neo-Orthodox Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Rc1 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c1g5 f8e7 e2e3 e8g8 a1c1 rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/2RQKBNR b K - +D55 Queen's Gambit Declined: Anti-Tartakower Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bxf6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 h7h6 g5f6 rnbq1rk1/ppp1bpp1/4pB1p/3p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ - +D55 Queen's Gambit Declined: Anti-Tartakower Variation, Petrosian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc4 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 h7h6 g5f6 e7f6 e2e3 e8g8 a1c1 c7c6 f1d3 b8d7 e1g1 d5c4 d3c4 r1bq1rk1/pp1n1pp1/2p1pb1p/8/2BP4/2N1PN2/PP3PPP/2RQ1RK1 b - - +D55 Queen's Gambit Declined: Modern Variation, Normal Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ - +D55 Queen's Gambit Declined: Neo-Orthodox Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 h7h6 rnbq1rk1/ppp1bpp1/4pn1p/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ - +D55 Queen's Gambit Declined: Neo-Orthodox Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 h7h6 g5h4 e8g8 e2e3 rnbq1rk1/ppp1bpp1/4pn1p/3p4/2PP3B/2N1PN2/PP3PPP/R2QKB1R b KQ - +D55 Queen's Gambit Declined: Pillsbury Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 d5 5. cxd5 exd5 6. Bg5 Be7 7. e3 O-O 8. Bd3 Bb7 9. Ne5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 d7d5 c4d5 e6d5 c1g5 f8e7 e2e3 e8g8 f1d3 c8b7 f3e5 rn1q1rk1/pbp1bppp/1p3n2/3pN1B1/3P4/2NBP3/PP3PPP/R2QK2R b KQ - +D56 Queen's Gambit Declined: Lasker Defense 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 f6e4 rnbq1rk1/ppp1bpp1/4p2p/3p4/2PPn2B/2N1PN2/PP3PPP/R2QKB1R w KQ - +D56 Queen's Gambit Declined: Lasker Defense, Russian Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 Nf6 10. Bd3 dxc4 11. Bxc4 c5 12. O-O Nc6 13. Rfd1 Bd7 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4 h4e7 d8e7 d1c2 e4f6 f1d3 d5c4 d3c4 c7c5 e1g1 b8c6 f1d1 c8d7 r4rk1/pp1bqpp1/2n1pn1p/2p5/2BP4/2N1PN2/PPQ2PPP/R2R2K1 w - - +D56 Queen's Gambit Declined: Lasker Defense, Teichmann Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 h7h6 g5h4 e8g8 e2e3 f6e4 h4e7 d8e7 d1c2 rnb2rk1/ppp1qpp1/4p2p/3p4/2PPn3/2N1PN2/PPQ2PPP/R3KB1R b KQ - +D57 Queen's Gambit Declined: Lasker Defense, Bernstein Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Qd6 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c1g5 f8e7 e2e3 h7h6 g5h4 e8g8 g1f3 f6e4 h4e7 d8e7 c4d5 e4c3 b2c3 e6d5 d1b3 e7d6 rnb2rk1/ppp2pp1/3q3p/3p4/3P4/1QP1PN2/P4PPP/R3KB1R w KQ - +D57 Queen's Gambit Declined: Lasker Defense, Bernstein Variation, Mar del Plata Gambit 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Rd8 12. c4 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4 h4e7 d8e7 c4d5 e4c3 b2c3 e6d5 d1b3 f8d8 c3c4 c8e6 rn1r2k1/ppp1qpp1/4b2p/3p4/2PP4/1Q2PN2/P4PPP/R3KB1R w KQ - +D57 Queen's Gambit Declined: Lasker Defense, Main Line 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 f6e4 h4e7 d8e7 c4d5 e4c3 b2c3 rnb2rk1/ppp1qpp1/4p2p/3P4/3P4/2P1PN2/P4PPP/R2QKB1R b KQ - +D58 Queen's Gambit Declined: Tartakower Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 h7h6 g5h4 e8g8 e2e3 b7b6 rnbq1rk1/p1p1bpp1/1p2pn1p/3p4/2PP3B/2N1PN2/PP3PPP/R2QKB1R w KQ - +D58 Queen's Gambit Declined: Tartakower Defense, Exchange Variation 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 exd5 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 b7b6 c4d5 e6d5 rnbq1rk1/p1p1bpp1/1p3n1p/3p4/3P3B/2N1PN2/PP3PPP/R2QKB1R w KQ - +D59 Queen's Gambit Declined: Tartakower Defense 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Rc1 Be6 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 b7b6 c4d5 f6d5 h4e7 d8e7 c3d5 e6d5 a1c1 c8e6 rn3rk1/p1p1qpp1/1p2b2p/3p4/3P4/4PN2/PP3PPP/2RQKB1R w K - +D59 Queen's Gambit Declined: Tartakower Defense, Makogonov Exchange Variation 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd5 d2d4 d7d5 c2c4 e7e6 b1c3 f8e7 g1f3 g8f6 c1g5 h7h6 g5h4 e8g8 e2e3 b7b6 c4d5 f6d5 rnbq1rk1/p1p1bpp1/1p2p2p/3n4/3P3B/2N1PN2/PP3PPP/R2QKB1R w KQ - +D60 Queen's Gambit Declined: Orthodox Defense 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ - +D60 Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Bd3 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 f1d3 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2NBPN2/PP3PPP/R2QK2R b KQ - +D60 Queen's Gambit Declined: Orthodox Defense, Rauzer Variation 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qb3 d2d4 d7d5 g1f3 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 d1b3 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/1QN1PN2/PP3PPP/R3KB1R b KQ - +D61 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 d1c2 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/R3KB1R b KQ - +D62 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation, Flohr Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 c5 8. cxd5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 d1c2 c7c5 c4d5 r1bq1rk1/pp1nbppp/4pn2/2pP2B1/3P4/2N1PN2/PPQ2PPP/R3KB1R b KQ - +D63 Queen's Gambit Declined: Orthodox Defense, Capablanca Variation 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bb5 g1f3 d7d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 b7b6 c4d5 e6d5 f1b5 r1bq1rk1/p1pnbppp/1p3n2/1B1p2B1/3P4/2N1PN2/PP3PPP/2RQK2R b K - +D63 Queen's Gambit Declined: Orthodox Defense, Henneberger Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 a7a6 r1bq1rk1/1ppnbppp/p3pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K - +D63 Queen's Gambit Declined: Orthodox Defense, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R b K - +D63 Queen's Gambit Declined: Orthodox Defense, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K - +D63 Queen's Gambit Declined: Orthodox Defense, Pillsbury Variation 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bd3 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 b7b6 c4d5 e6d5 f1d3 r1bq1rk1/p1pnbppp/1p3n2/3p2B1/3P4/2NBPN2/PP3PPP/2RQK2R b K - +D63 Queen's Gambit Declined: Orthodox Defense, Swiss, Karlsbad Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. cxd5 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 a7a6 c4d5 r1bq1rk1/1ppnbppp/p3pn2/3P2B1/3P4/2N1PN2/PP3PPP/2RQKB1R b K - +D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. a3 a6 9. Qc2 d2d4 g8f6 c2c4 e7e6 b1c3 d7d5 g1f3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 a2a3 a7a6 d1c2 r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/P1N1PN2/1PQ2PPP/2R1KB1R b K - +D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 d1c2 r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/2R1KB1R b K - +D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 a6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 d1c2 a7a6 r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/2R1KB1R w K - +D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 Ne4 g1f3 d7d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 d1c2 f6e4 r1bq1rk1/pp1nbppp/2p1p3/3p2B1/2PPn3/2N1PN2/PPQ2PPP/2R1KB1R w K - +D65 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 a6 9. cxd5 d2d4 d7d5 g1f3 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 d1c2 a7a6 c4d5 r1bq1rk1/1p1nbppp/p1p1pn2/3P2B1/3P4/2N1PN2/PPQ2PPP/2R1KB1R b K - +D66 Queen's Gambit Declined: Orthodox Defense, Bd3 Line 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2NBPN2/PP3PPP/2RQK2R b K - +D66 Queen's Gambit Declined: Orthodox Defense, Fianchetto Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. Nf3 Be7 6. e3 Nbd7 7. Rc1 O-O 8. Bd3 dxc4 9. Bxc4 b5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c6 g1f3 f8e7 e2e3 b8d7 a1c1 e8g8 f1d3 d5c4 d3c4 b7b5 r1bq1rk1/p2nbppp/2p1pn2/1p4B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K - +D67 Queen's Gambit Declined: Orthodox Defense, Alekhine Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. Ne4 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 c3e4 r1b2rk1/pp1nqppp/2p1p3/3n4/2BPN3/4PN2/PP3PPP/2RQK2R b K - +D67 Queen's Gambit Declined: Orthodox Defense, Bd3 Line 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 r1b2rk1/pp1nqppp/2p1p3/3n4/2BP4/2N1PN2/PP3PPP/2RQK2R w K - +D67 Queen's Gambit Declined: Orthodox Defense, Capablanca System 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K - +D67 Queen's Gambit Declined: Orthodox Defense, Janowski Variation 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. h4 d2d4 d7d5 g1f3 g8f6 c2c4 e7e6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 h2h4 r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP3P/2N1PN2/PP3PP1/2RQK2R b K - +D67 Queen's Gambit Declined: Orthodox Defense, Main Line 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 r1b2rk1/pp1nqppp/2p1p3/3n4/2BP4/2N1PN2/PP3PPP/2RQ1RK1 b - - +D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PP3PPP/3Q1RK1 w - - +D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. Qb1 d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d1b1 r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PP3PPP/1Q3RK1 b - - +D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 b1c3 f8e7 c1g5 e8g8 e2e3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d1c2 r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PPQ2PPP/5RK1 b - - +D69 Queen's Gambit Declined: Orthodox Defense, Classical Variation 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5 d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d4e5 d7e5 f3e5 e7e5 r1b2rk1/pp3ppp/2p5/4q3/2B5/2R1P3/PP3PPP/3Q1RK1 w - - +D70 Neo-Grünfeld Defense 1. d4 Nf6 2. c4 g6 3. g3 d5 d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - +D70 Neo-Grünfeld Defense: Goglidze Attack 1. d4 Nf6 2. c4 g6 3. f3 d5 d2d4 g8f6 c2c4 g7g6 f2f3 d7d5 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/5P2/PP2P1PP/RNBQKBNR w KQkq - +D71 Neo-Grünfeld Defense: Exchange Variation 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 d7d5 c4d5 f6d5 rnbqk2r/ppp1ppbp/6p1/3n4/3P4/6P1/PP2PPBP/RNBQK1NR w KQkq - +D74 Neo-Grünfeld Defense: Delayed Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d5 c4d5 f6d5 e1g1 rnbq1rk1/ppp1ppbp/6p1/3n4/3P4/5NP1/PP2PPBP/RNBQ1RK1 b - - +D75 Neo-Grünfeld Defense: Delayed Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 e8g8 g2g3 d7d5 c4d5 f6d5 f1g2 c7c5 e1g1 rnbq1rk1/pp2ppbp/6p1/2pn4/3P4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +D75 Neo-Grünfeld Defense: Delayed Exchange Variation 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O c5 8. dxc5 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 g2g3 e8g8 f1g2 d7d5 c4d5 f6d5 e1g1 c7c5 d4c5 rnbq1rk1/pp2ppbp/6p1/2Pn4/8/5NP1/PP2PPBP/RNBQ1RK1 b - - +D76 Neo-Grünfeld Defense: Delayed Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Nb6 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d5 c4d5 f6d5 e1g1 d5b6 rnbq1rk1/ppp1ppbp/1n4p1/8/3P4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D77 Neo-Grünfeld Defense: Classical Variation 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d5 c2c4 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 b - - +D77 Neo-Grünfeld Defense: Classical Variation, Modern Defense 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d5 c2c4 d5c4 rnbq1rk1/ppp1ppbp/5np1/8/2pP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D77 Neo-Grünfeld Defense: Classical Variation, Polgar Variation 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 Nc6 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d5 c2c4 b8c6 r1bq1rk1/ppp1ppbp/2n2np1/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D78 Neo-Grünfeld Defense: Classical Variation, Original Defense 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 c7c6 e1g1 d7d5 rnbq1rk1/pp2ppbp/2p2np1/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D79 Neo-Grünfeld Defense: Ultra-delayed Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. cxd5 cxd5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 c7c6 e1g1 d7d5 c4d5 c6d5 rnbq1rk1/pp2ppbp/5np1/3p4/3P4/5NP1/PP2PPBP/RNBQ1RK1 w - - +D80 Grünfeld Defense 1. d4 Nf6 2. c4 g6 3. Nc3 d5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D80 Grünfeld Defense: Gibbon Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. g4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g2g4 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP2P1/2N5/PP2PP1P/R1BQKBNR b KQkq - +D80 Grünfeld Defense: Lundin Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Nxe4 dxe4 6. Qd2 c5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1g5 f6e4 c3e4 d5e4 d1d2 c7c5 rnbqkb1r/pp2pp1p/6p1/2p3B1/2PPp3/8/PP1QPPPP/R3KBNR w KQkq - +D80 Grünfeld Defense: Lutikov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. f3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 f2f3 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq - +D80 Grünfeld Defense: Lutikov Variation, Murrey Attack 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. f3 c5 5. cxd5 Nxd5 6. Na4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 f2f3 c7c5 c4d5 f6d5 c3a4 rnbqkb1r/pp2pp1p/6p1/2pn4/N2P4/5P2/PP2P1PP/R1BQKBNR b KQkq - +D80 Grünfeld Defense: Stockholm Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1g5 rnbqkb1r/ppp1pp1p/5np1/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - +D80 Grünfeld Defense: Zaitsev Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. h4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 h2h4 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP3P/2N5/PP2PPP1/R1BQKBNR b KQkq - +D81 Grünfeld Defense: Russian Variation, Accelerated Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 d1b3 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/1QN5/PP2PPPP/R1B1KBNR b KQkq - +D82 Grünfeld Defense: Brinckmann Attack 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP1B2/2N5/PP2PPPP/R2QKBNR b KQkq - +D83 Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1P3/PP3PPP/R2QKBNR w KQ - +D83 Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit, Botvinnik Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 c5 7. dxc5 Be6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 a1c1 c7c5 d4c5 c8e6 rn1q1rk1/pp2ppbp/4bnp1/2Pp4/2P2B2/2N1P3/PP3PPP/2RQKBNR w K - +D83 Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit, Capablanca Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 a1c1 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1P3/PP3PPP/2RQKBNR b K - +D83 Grünfeld Defense: Brinckmann Attack, Reshevsky Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Rc1 O-O 6. e3 c5 7. dxc5 Qa5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 a1c1 e8g8 e2e3 c7c5 d4c5 d8a5 rnb2rk1/pp2ppbp/5np1/q1Pp4/2P2B2/2N1P3/PP3PPP/2RQKBNR w K - +D84 Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit Accepted 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc7 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 c4d5 f6d5 c3d5 d8d5 f4c7 rnb2rk1/ppB1ppbp/6p1/3q4/3P4/4P3/PP3PPP/R2QKBNR b KQ - +D85 Grünfeld Defense: Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 rnbqkb1r/ppp1pp1p/6p1/3n4/3P4/2N5/PP2PPPP/R1BQKBNR w KQkq - +D85 Grünfeld Defense: Exchange Variation, Modern Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 g1f3 rnbqk2r/ppp1ppbp/6p1/8/3PP3/2P2N2/P4PPP/R1BQKB1R b KQkq - +D85 Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Kramnik's Line 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. h3 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 c7c5 h2h3 rnbqk2r/pp2ppbp/6p1/2p5/3PP3/2P2N1P/P4PP1/R1BQKB1R b KQkq - +D85 Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Pawn Grab Line 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 O-O 9. Be2 Nc6 10. d5 Bxc3+ d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 g1f3 c7c5 a1b1 e8g8 f1e2 b8c6 d4d5 g7c3 r1bq1rk1/pp2pp1p/2n3p1/2pP4/4P3/2b2N2/P3BPPP/1RBQK2R w K - +D85 Grünfeld Defense: Exchange Variation, Nadanian Attack 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Na4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 c3a4 rnbqkb1r/ppp1pp1p/6p1/3n4/N2P4/8/PP2PPPP/R1BQKBNR b KQkq - +D86 Grünfeld Defense: Exchange Variation, Classical Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 rnbqk2r/ppp1ppbp/6p1/8/2BPP3/2P5/P4PPP/R1BQK1NR b KQkq - +D86 Grünfeld Defense: Exchange Variation, Larsen Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Qd7 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 d8d7 rnb2rk1/pppqppbp/6p1/8/2BPP3/2P5/P3NPPP/R1BQK2R w KQ - +D86 Grünfeld Defense: Exchange Variation, Larsen Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Qd7 9. O-O b6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 d8d7 e1g1 b7b6 rnb2rk1/p1pqppbp/1p4p1/8/2BPP3/2P5/P3NPPP/R1BQ1RK1 w - - +D86 Grünfeld Defense: Exchange Variation, Simagin's Improved Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 b8c6 r1bq1rk1/ppp1ppbp/2n3p1/8/2BPP3/2P5/P3NPPP/R1BQK2R w KQ - +D86 Grünfeld Defense: Exchange Variation, Simagin's Lesser Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 b7b6 rnbq1rk1/p1p1ppbp/1p4p1/8/2BPP3/2P5/P3NPPP/R1BQK2R w KQ - +D87 Grünfeld Defense: Exchange Variation, Seville Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Bg4 11. f3 Na5 12. Bxf7+ d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 b8c6 c1e3 e8g8 e1g1 c8g4 f2f3 c6a5 c4f7 r2q1rk1/pp2pBbp/6p1/n1p5/3PP1b1/2P1BP2/P3N1PP/R2Q1RK1 b - - +D87 Grünfeld Defense: Exchange Variation, Spassky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 e8g8 rnbq1rk1/pp2ppbp/6p1/2p5/2BPP3/2P5/P3NPPP/R1BQK2R w KQ - +D88 Grünfeld Defense: Exchange Variation, Spassky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O cxd4 11. cxd4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 b8c6 c1e3 e8g8 e1g1 c5d4 c3d4 r1bq1rk1/pp2ppbp/2n3p1/8/2BPP3/4B3/P3NPPP/R2Q1RK1 b - - +D89 Grünfeld Defense: Exchange Variation, Sokolsky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O 9. O-O Nc6 10. Be3 Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 14. d5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 e8g8 e1g1 b8c6 c1e3 c8g4 f2f3 c6a5 c4d3 c5d4 c3d4 g4e6 d4d5 r2q1rk1/pp2ppbp/4b1p1/n2P4/4P3/3BBP2/P3N1PP/R2Q1RK1 b - - +D89 Grünfeld Defense: Exchange Variation, Spassky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 c7c5 g1e2 b8c6 c1e3 e8g8 e1g1 c8g4 f2f3 c6a5 c4d3 c5d4 c3d4 g4e6 r2q1rk1/pp2ppbp/4b1p1/n7/3PP3/3BBP2/P3N1PP/R2Q1RK1 w - - +D90 Grünfeld Defense: Flohr Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1a4 rnbqk2r/ppp1ppbp/5np1/3p4/Q1PP4/2N2N2/PP2PPPP/R1B1KB1R b KQkq - +D90 Grünfeld Defense: Three Knights Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +D90 Grünfeld Defense: Three Knights Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +D91 Grünfeld Defense: Three Knights Variation, Petrosian System 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1g5 rnbqk2r/ppp1ppbp/5np1/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D92 Grünfeld Defense: Three Knights Variation, Hungarian Attack 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1f4 rnbqk2r/ppp1ppbp/5np1/3p4/2PP1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq - +D93 Grünfeld Defense: Three Knights Variation, Hungarian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1f4 e8g8 e2e3 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R b KQ - +D94 Grünfeld Defense: Flohr Defense 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Bd3 O-O 7. O-O Bf5 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 g7g6 g1f3 f8g7 f1d3 e8g8 e1g1 c8f5 rn1q1rk1/pp2ppbp/2p2np1/3p1b2/2PP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +D94 Grünfeld Defense: Makogonov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. b4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 b2b4 rnbq1rk1/ppp1ppbp/5np1/3p4/1PPP4/2N1PN2/P4PPP/R1BQKB1R b KQ - +D94 Grünfeld Defense: Opocensky Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd2 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 c1d2 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/2N1PN2/PP1B1PPP/R2QKB1R b KQ - +D94 Grünfeld Defense: Smyslov Defense 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Bd3 O-O 7. O-O Bg4 d2d4 d7d5 c2c4 c7c6 b1c3 g8f6 e2e3 g7g6 g1f3 f8g7 f1d3 e8g8 e1g1 c8g4 rn1q1rk1/pp2ppbp/2p2np1/3p4/2PP2b1/2NBPN2/PP3PPP/R1BQ1RK1 w - - +D94 Grünfeld Defense: Three Knights Variation, Burille Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - +D94 Grünfeld Defense: Three Knights Variation, Paris Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 f1d3 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQ - +D95 Grünfeld Defense: Botvinnik Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3 e6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 d1b3 e7e6 rnbq1rk1/ppp2pbp/4pnp1/3p4/2PP4/1QN1PN2/PP3PPP/R1B1KB1R w KQ - +D95 Grünfeld Defense: Pachman Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Qb3 dxc4 6. Bxc4 O-O 7. Nf3 Nbd7 8. Ng5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 e2e3 f8g7 d1b3 d5c4 f1c4 e8g8 g1f3 b8d7 f3g5 r1bq1rk1/pppnppbp/5np1/6N1/2BP4/1QN1P3/PP3PPP/R1B1K2R b KQ - +D95 Grünfeld Defense: Three Knights Variation, Vienna Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 d1b3 rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/1QN1PN2/PP3PPP/R1B1KB1R b KQ - +D96 Grünfeld Defense: Russian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/1QN2N2/PP2PPPP/R1B1KB1R b KQkq - +D97 Grünfeld Defense: Russian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 rnbq1rk1/ppp1ppbp/5np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R b KQ - +D97 Grünfeld Defense: Russian Variation, Byrne Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b8c6 r1bq1rk1/ppp1ppbp/2n2np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D97 Grünfeld Defense: Russian Variation, Hungarian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 a6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 a7a6 rnbq1rk1/1pp1ppbp/p4np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D97 Grünfeld Defense: Russian Variation, Levenfish Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 b6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b7b6 rnbq1rk1/p1p1ppbp/1p3np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D97 Grünfeld Defense: Russian Variation, Prins Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Na6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b8a6 r1bq1rk1/ppp1ppbp/n4np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D97 Grünfeld Defense: Russian Variation, Szabo Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c7c6 rnbq1rk1/pp2ppbp/2p2np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ - +D98 Grünfeld Defense: Russian Variation, Keres Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Be2 Nb6 10. Qd3 Nc6 11. O-O-O d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 f1e2 d7b6 c4d3 b8c6 e1c1 r2q1rk1/ppp1ppbp/1nn3p1/8/3PP1b1/2NQBN2/PP2BPPP/2KR3R b - - +D98 Grünfeld Defense: Russian Variation, Smyslov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 rn1q1rk1/ppp1ppbp/5np1/8/2QPP1b1/2N2N2/PP3PPP/R1B1KB1R w KQ - +D99 Grünfeld Defense: Russian Variation, Smyslov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 c4b3 rn1q1rk1/pppnppbp/6p1/8/3PP1b1/1QN1BN2/PP3PPP/R3KB1R b KQ - +D99 Grünfeld Defense: Russian Variation, Yugoslav Variation 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3 c5 d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 c4b3 c7c5 rn1q1rk1/pp1nppbp/6p1/2p5/3PP1b1/1QN1BN2/PP3PPP/R3KB1R w KQ - +E00 Catalan Opening 1. d4 Nf6 2. c4 e6 3. g3 d2d4 g8f6 c2c4 e7e6 g2g3 rnbqkb1r/pppp1ppp/4pn2/8/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq - +E00 Catalan Opening 1. d4 Nf6 2. c4 e6 3. g3 d5 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - +E00 Catalan Opening: Hungarian Gambit 1. d4 Nf6 2. c4 e6 3. g3 e5 d2d4 g8f6 c2c4 e7e6 g2g3 e6e5 rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - +E00 Indian Defense 1. d4 Nf6 2. c4 e6 3. Qb3 d2d4 g8f6 c2c4 e7e6 d1b3 rnbqkb1r/pppp1ppp/4pn2/8/2PP4/1Q6/PP2PPPP/RNB1KBNR b KQkq - +E00 Indian Defense: Devin Gambit 1. d4 Nf6 2. c4 e6 3. g4 d2d4 g8f6 c2c4 e7e6 g2g4 rnbqkb1r/pppp1ppp/4pn2/8/2PP2P1/8/PP2PP1P/RNBQKBNR b KQkq - +E00 Indian Defense: Seirawan Attack 1. d4 Nf6 2. c4 e6 3. Bg5 d2d4 g8f6 c2c4 e7e6 c1g5 rnbqkb1r/pppp1ppp/4pn2/6B1/2PP4/8/PP2PPPP/RN1QKBNR b KQkq - +E01 Catalan Opening: Closed 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq - +E01 Catalan Opening: Open Defense, Tarrasch Defense 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c5 5. Nf3 Nc6 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 c7c5 g1f3 b8c6 r1bqkb1r/pp3ppp/2n1pn2/2pp4/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E02 Catalan Opening: Open Defense 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 rnbqkb1r/ppp2ppp/4pn2/8/Q1pP4/6P1/PP2PPBP/RNB1K1NR b KQkq - +E03 Catalan Opening: Open Defense 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 b8d7 a4c4 r1bqkb1r/pppn1ppp/4pn2/8/2QP4/6P1/PP2PPBP/RNB1K1NR b KQkq - +E03 Catalan Opening: Open Defense, Alekhine Variation 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 b8d7 a4c4 a7a6 c4c2 r1bqkb1r/1ppn1ppp/p3pn2/8/3P4/6P1/PPQ1PPBP/RNB1K1NR b KQkq - +E04 Catalan Opening: Open Defense 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 g1f3 rnbqkb1r/ppp2ppp/4pn2/8/2pP4/5NP1/PP2PPBP/RNBQK2R b KQkq - +E04 Catalan Opening: Open Defense, Modern Sharp Variation 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 g1f3 b8c6 d1a4 f8b4 r1bqk2r/ppp2ppp/2n1pn2/8/QbpP4/5NP1/PP2PPBP/RNB1K2R w KQkq - +E05 Catalan Opening: Open Defense, Classical Line 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 g1f3 f8e7 rnbqk2r/ppp1bppp/4pn2/8/2pP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E06 Catalan Opening: Closed 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 rnbqk2r/ppp1bppp/4pn2/3p4/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq - +E07 Catalan Opening: Closed 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 r1bq1rk1/pppnbppp/4pn2/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +E07 Catalan Opening: Closed, Botvinnik Variation 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. d4 O-O 6. Nc3 c6 7. O-O Nbd7 8. Qd3 c2c4 e7e6 g2g3 d7d5 f1g2 g8f6 g1f3 f8e7 d2d4 e8g8 b1c3 c7c6 e1g1 b8d7 d1d3 r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/2NQ1NP1/PP2PPBP/R1B2RK1 b - - +E08 Catalan Opening: Closed 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. b3 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b2b3 r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/1P3NP1/P1Q1PPBP/RNB2RK1 b - - +E08 Catalan Opening: Closed 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. Qc2 g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 e1g1 e8g8 d2d4 b8d7 d1c2 r1bq1rk1/pppnbppp/4pn2/3p4/2PP4/5NP1/PPQ1PPBP/RNB2RK1 b - - +E08 Catalan Opening: Closed, Spassky Gambit 1. d4 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 d5 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. b3 b6 9. Rd1 Bb7 10. Nc3 b5 d2d4 g8f6 c2c4 e7e6 g2g3 f8e7 f1g2 d7d5 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b2b3 b7b6 f1d1 c8b7 b1c3 b6b5 r2q1rk1/pb1nbppp/2p1pn2/1p1p4/2PP4/1PN2NP1/P1Q1PPBP/R1BR2K1 w - - +E08 Catalan Opening: Closed, Zagoryansky Variation 1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Rd1 b6 9. a4 d2d4 e7e6 c2c4 g8f6 g1f3 d7d5 g2g3 f8e7 f1g2 e8g8 e1g1 b8d7 d1c2 c7c6 f1d1 b7b6 a2a4 r1bq1rk1/p2nbppp/1pp1pn2/3p4/P1PP4/5NP1/1PQ1PPBP/RNBR2K1 b - - +E09 Catalan Opening: Closed Variation, Rabinovich Variation 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Nbd2 Be7 6. g3 Nbd7 7. Bg2 O-O 8. O-O b5 d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 d1c2 e7e6 b1d2 f8e7 g2g3 b8d7 f1g2 e8g8 e1g1 b7b5 r1bq1rk1/p2nbppp/2p1pn2/1p1p4/2PP4/5NP1/PPQNPPBP/R1B2RK1 w - - +E09 Catalan Opening: Closed Variation, Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 b6 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 g2g3 f8e7 f1g2 e8g8 e1g1 b8d7 d1c2 c7c6 b1d2 b7b6 r1bq1rk1/p2nbppp/1pp1pn2/3p4/2PP4/5NP1/PPQNPPBP/R1B2RK1 w - - +E09 Catalan Opening: Closed, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 d2d4 g8f6 c2c4 e7e6 g1f3 d7d5 g2g3 f8e7 f1g2 e8g8 e1g1 b8d7 d1c2 c7c6 b1d2 r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/5NP1/PPQNPPBP/R1B2RK1 b - - +E09 Catalan Opening: Closed, Sokolsky Variation 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 b6 9. b3 a5 10. Bb2 Ba6 d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b1d2 b7b6 b2b3 a7a5 c1b2 c8a6 r2q1rk1/3nbppp/bpp1pn2/p2p4/2PP4/1P3NP1/PBQNPPBP/R4RK1 w - - +E10 Blumenfeld Countergambit 1. d4 Nf6 2. c4 e6 3. Nf3 c5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 rnbqkb1r/pp1p1ppp/4pn2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Blumenfeld Countergambit 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 rnbqkb1r/p2p1ppp/4pn2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Blumenfeld Countergambit Accepted 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 d5e6 f7e6 c4b5 d7d5 rnbqkb1r/p5pp/4pn2/1Ppp4/8/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Blumenfeld Countergambit: Dus-Khotimirsky Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 c1g5 rnbqkb1r/p2p1ppp/4pn2/1ppP2B1/2P5/5N2/PP2PPPP/RN1QKB1R b KQkq - +E10 Blumenfeld Countergambit: Spielmann Variation 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 b5 5. Bg5 exd5 6. cxd5 h6 d2d4 g8f6 g1f3 e7e6 c2c4 c7c5 d4d5 b7b5 c1g5 e6d5 c4d5 h7h6 rnbqkb1r/p2p1pp1/5n1p/1ppP2B1/8/5N2/PP2PPPP/RN1QKB1R w KQkq - +E10 Indian Defense: Anti-Nimzo-Indian 1. d4 Nf6 2. c4 e6 3. Nf3 d2d4 g8f6 c2c4 e7e6 g1f3 rnbqkb1r/pppp1ppp/4pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +E10 Indian Defense: Dzindzi-Indian Defense 1. d4 Nf6 2. c4 e6 3. Nf3 a6 d2d4 g8f6 c2c4 e7e6 g1f3 a7a6 rnbqkb1r/1ppp1ppp/p3pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Indian Defense: Döry Indian 1. d4 Nf6 2. c4 e6 3. Nf3 Ne4 d2d4 g8f6 c2c4 e7e6 g1f3 f6e4 rnbqkb1r/pppp1ppp/4p3/8/2PPn3/5N2/PP2PPPP/RNBQKB1R w KQkq - +E10 Tarrasch Defense: Symmetrical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 d5 5. Nc3 Nc6 d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 e2e3 d7d5 b1c3 b8c6 r1bqkb1r/pp3ppp/2n1pn2/2pp4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - +E11 Bogo-Indian Defense 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E11 Bogo-Indian Defense: Exchange Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 b4d2 rnbqk2r/pppp1ppp/4pn2/8/2PP4/5N2/PP1bPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Grünfeld Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 b1d2 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/5N2/PP1NPPPP/R1BQKB1R b KQkq - +E11 Bogo-Indian Defense: Haiti Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Nc6 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 b8c6 r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Monticelli Trap 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4 c1d2 b4d2 d1d2 e8g8 b1c3 f6e4 d2c2 e4c3 f3g5 rn1q1rk1/pbpp1ppp/1p2p3/6N1/2PP4/2n3P1/PPQ1PPBP/R3K2R b KQ - +E11 Bogo-Indian Defense: New England Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nfd2 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 f3d2 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/8/PP1NPPPP/RNBQKB1R b KQkq - +E11 Bogo-Indian Defense: Nimzowitsch Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 d8e7 rnb1k2r/ppppqppp/4pn2/8/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Retreat Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 b4e7 rnbqk2r/ppppbppp/4pn2/8/2PP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Vitolins Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 c7c5 rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E11 Bogo-Indian Defense: Wade-Smyslov Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 a7a5 rnbqk2r/1ppp1ppp/4pn2/p7/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq - +E12 Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 f8b4 rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +E12 Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation, Modern Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Bg5 Bb7 6. Nd2 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 f8b4 c1g5 c8b7 f3d2 rn1qk2r/pbpp1ppp/1p2pn2/6B1/1bPP4/2N5/PP1NPPPP/R2QKB1R b KQkq - +E12 Queen's Indian Defense 1. d4 Nf6 2. c4 e6 3. Nf3 b6 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +E12 Queen's Indian Defense: Kasparov Variation, Botvinnik Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 h6 6. Bh4 g5 7. Bg3 Nh5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 c8b7 c1g5 h7h6 g5h4 g7g5 h4g3 f6h5 rn1qkb1r/pbpp1p2/1p2p2p/6pn/2PP4/2N2NB1/PP2PPPP/R2QKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Andersson Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Ne4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 f6e4 rn1qkb1r/pbpp1ppp/1p2p3/8/2PPn3/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 e6d5 rn1qkb1r/pbp2ppp/1p3n2/3p4/3P4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Hedgehog Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 g6 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 g7g6 rn1qkb1r/pbpp1p1p/1p2pnp1/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Kasparov Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Qc2 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 d1c2 rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N2N2/1PQ1PPPP/R1B1KB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 rn1qkb1r/pbp2ppp/1p2pn2/3p4/2PP4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Marco Defense 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 f8e7 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Modern Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Petrosian Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. e3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 e2e3 rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N1PN2/1P3PPP/R1BQKB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Polovodin Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 Nxd5 7. e4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 c8b7 a2a3 d7d5 c4d5 f6d5 e2e4 rn1qkb1r/pbp2ppp/1p2p3/3n4/3PP3/P1N2N2/1P3PPP/R1BQKB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Rashkovsky Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Qa4+ d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 d1a4 rn1qkb1r/pbp2ppp/1p2p3/3n4/Q2P4/P1N2N2/1P2PPPP/R1B1KB1R b KQkq - +E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Romanishin Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Bd2 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8b7 b1c3 d7d5 c4d5 f6d5 c1d2 rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N2N2/1P1BPPPP/R2QKB1R b KQkq - +E12 Queen's Indian Defense: Miles Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bf4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 c1f4 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP1B2/5N2/PP2PPPP/RN1QKB1R b KQkq - +E12 Queen's Indian Defense: Petrosian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/P4N2/1P2PPPP/RNBQKB1R b KQkq - +E12 Queen's Indian Defense: Petrosian Variation, Farago Defense 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 Bb7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3 c8a6 d1c2 a6b7 rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/P4N2/1PQ1PPPP/RNB1KB1R w KQkq - +E13 Queen's Indian Defense: Kasparov Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Bg5 h6 6. Bh4 Bb7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 f8b4 c1g5 h7h6 g5h4 c8b7 rn1qk2r/pbpp1pp1/1p2pn1p/8/1bPP3B/2N2N2/PP2PPPP/R2QKB1R w KQkq - +E14 Queen's Indian Defense: Averbakh Variation 1. Nf3 c5 2. b3 Nf6 3. Bb2 e6 4. e3 Be7 5. d4 O-O 6. Bd3 b6 7. O-O Bb7 8. c4 cxd4 9. Nxd4 g1f3 c7c5 b2b3 g8f6 c1b2 e7e6 e2e3 f8e7 d2d4 e8g8 f1d3 b7b6 e1g1 c8b7 c2c4 c5d4 f3d4 rn1q1rk1/pb1pbppp/1p2pn2/8/2PN4/1P1BP3/PB3PPP/RN1Q1RK1 b - - +E14 Queen's Indian Defense: Spassky System 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 e2e3 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/4PN2/PP3PPP/RNBQKB1R b KQkq - +E15 Queen's Indian Defense: Buerger Variation 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. g3 Bb7 5. Bg2 c5 6. d5 exd5 7. Ng5 g1f3 g8f6 c2c4 b7b6 d2d4 e7e6 g2g3 c8b7 f1g2 c7c5 d4d5 e6d5 f3g5 rn1qkb1r/pb1p1ppp/1p3n2/2pp2N1/2P5/6P1/PP2PPBP/RNBQK2R b KQkq - +E15 Queen's Indian Defense: Fianchetto Traditional 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Check Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 b2b3 f8b4 rn1qk2r/p1pp1ppp/bp2pn2/8/1bPP4/1P3NP1/P3PP1P/RNBQKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 b2b3 f8b4 c1d2 b4e7 rn1qk2r/p1ppbppp/bp2pn2/8/2PP4/1P3NP1/P2BPP1P/RN1QKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Check Variation, Modern Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Qe7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 b2b3 f8b4 c1d2 d8e7 rn2k2r/p1ppqppp/bp2pn2/8/1bPP4/1P3NP1/P2BPP1P/RN1QKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R w KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Nimzowitsch Attack 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qa4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 d1a4 rn1qkb1r/p1pp1ppp/bp2pn2/8/Q1PP4/5NP1/PP2PP1P/RNB1KB1R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Quiet Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 b2b3 rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/1P3NP1/P3PP1P/RNBQKB1R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Timman's Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qb3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6 d1b3 rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/1Q3NP1/PP2PP1P/RNB1KB1R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Rubinstein Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 c5 6. d5 exd5 7. Nh4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 d4d5 e6d5 f3h4 rn1qkb1r/pb1p1ppp/1p3n2/2pp4/2P4N/6P1/PP2PPBP/RNBQK2R b KQkq - +E15 Queen's Indian Defense: Fianchetto Variation, Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 c5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 rn1qkb1r/pb1p1ppp/1p2pn2/2p5/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E16 Queen's Indian Defense: Capablanca Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4 rn1qk2r/pbpp1ppp/1p2pn2/8/1bPP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E16 Queen's Indian Defense: Riumin Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4 c1d2 b4e7 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP1BPPBP/RN1QK2R w KQkq - +E16 Queen's Indian Defense: Yates Variation 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 b6 6. Bg2 Bb7 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 a7a5 g2g3 b7b6 f1g2 c8b7 rn1qk2r/1bpp1ppp/1p2pn2/p7/1bPP4/5NP1/PP1BPPBP/RN1QK2R w KQkq - +E17 Queen's Indian Defense: Anti-Queen's Indian System 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 b1c3 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R b KQkq - +E17 Queen's Indian Defense: Classical Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP2PPBP/RNBQ1RK1 b kq - +E17 Queen's Indian Defense: Classical Variation, Polugaevsky Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d5 exd5 8. Nh4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 d4d5 e6d5 f3h4 rn1q1rk1/pbppbppp/1p3n2/3p4/2P4N/6P1/PP2PPBP/RNBQ1RK1 b - - +E17 Queen's Indian Defense: Classical Variation, Taimanov Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d5 exd5 8. Nd4 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 d4d5 e6d5 f3d4 rn1q1rk1/pbppbppp/1p3n2/3p4/2PN4/6P1/PP2PPBP/RNBQ1RK1 b - - +E17 Queen's Indian Defense: Euwe Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. b3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b2b3 rn1q1rk1/pbppbppp/1p2pn2/8/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b - - +E17 Queen's Indian Defense: Fianchetto Variation, Kramnik Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Re1 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 f1e1 rn1q1rk1/pbppbppp/1p2pn2/8/2PP4/5NP1/PP2PPBP/RNBQR1K1 b - - +E17 Queen's Indian Defense: Opocensky Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Bd2 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 b1c3 f6e4 c1d2 rn1qk2r/pbppbppp/1p2p3/8/2PPn3/2N2NP1/PP1BPPBP/R2QK2R b KQkq - +E17 Queen's Indian Defense: Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E18 Queen's Indian Defense: Classical Variation, Tiviakov Defense 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. Nc3 O-O 7. d4 Na6 g1f3 g8f6 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 b1c3 e8g8 d2d4 b8a6 r2q1rk1/pbppbppp/np2pn2/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E18 Queen's Indian Defense: Classical Variation, Traditional Variation 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b1c3 rn1q1rk1/pbppbppp/1p2pn2/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +E18 Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b1c3 d7d5 rn1q1rk1/pbp1bppp/1p2pn2/3p4/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E19 Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b1c3 f6e4 d1c2 e4c3 c2c3 rn1q1rk1/pbppbppp/1p2p3/8/2PP4/2Q2NP1/PP2PPBP/R1B2RK1 b - - +E20 Nimzo-Indian Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N5/PP2PPPP/R1BQKBNR w KQkq - +E20 Nimzo-Indian Defense: Kmoch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq - +E20 Nimzo-Indian Defense: Mikenas Attack 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qd3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1d3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2NQ4/PP2PPPP/R1B1KBNR b KQkq - +E20 Nimzo-Indian Defense: Romanishin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g2g3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq - +E21 Nimzo-Indian Defense: Romanishin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 O-O 6. Bg2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 g2g3 e8g8 f1g2 rnbq1rk1/pp1p1ppp/4pn2/2p5/1bPP4/2N2NP1/PP2PPBP/R1BQK2R b KQ - +E21 Nimzo-Indian Defense: Romanishin Variation, English Hybrid 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 cxd4 6. Nxd4 O-O 7. Bg2 d5 8. cxd5 Nxd5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 g2g3 c5d4 f3d4 e8g8 f1g2 d7d5 c4d5 f6d5 rnbq1rk1/pp3ppp/4p3/3n4/1b1N4/2N3P1/PP2PPBP/R1BQK2R w KQ - +E21 Nimzo-Indian Defense: Three Knights Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +E21 Nimzo-Indian Defense: Three Knights Variation, Euwe Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5 Ne4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 d4d5 f6e4 rnbqk2r/pp1p1ppp/4p3/2pP4/1bP1n3/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +E21 Nimzo-Indian Defense: Three Knights Variation, Korchnoi Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 d4d5 rnbqk2r/pp1p1ppp/4pn2/2pP4/1bP5/2N2N2/PP2PPPP/R1BQKB1R b KQkq - +E21 Nimzo-Indian Defense: Three Knights Variation, Shocron Gambit 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. d5 b5 d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 b1c3 c7c5 d4d5 b7b5 rnbqk2r/p2p1ppp/4pn2/1ppP4/1bP5/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +E22 Nimzo-Indian Defense: Spielmann Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/1QN5/PP2PPPP/R1B1KBNR b KQkq - +E23 Nimzo-Indian Defense: Spielmann Variation, Karlsbad Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4d2 r1bqk2r/pp1p1ppp/2n1p3/2P5/1bP5/1QN2N2/PP1nPPPP/R3KB1R w KQkq - +E23 Nimzo-Indian Defense: Spielmann Variation, Romanovsky Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 r1bqk2r/pp1p1ppp/2n1pn2/2P5/1bP5/1QN5/PP2PPPP/R1B1KBNR w KQkq - +E23 Nimzo-Indian Defense: Spielmann Variation, Stahlberg Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxc5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4c5 r1bqk2r/pp1p1ppp/2n1p3/2n5/1bP5/1QN2N2/PP1BPPPP/R3KB1R w KQkq - +E23 Nimzo-Indian Defense: Spielmann Variation, Stahlberg Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxc5 8. Qc2 f5 9. g3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4c5 b3c2 f7f5 g2g3 r1bqk2r/pp1p2pp/2n1p3/2n2p2/1bP5/2N2NP1/PPQBPP1P/R3KB1R b KQkq - +E24 Nimzo-Indian Defense: Sämisch Variation, Accelerated 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 rnbqk2r/pppp1ppp/4pn2/8/2PP4/P1P5/4PPPP/R1BQKBNR b KQkq - +E24 Nimzo-Indian Defense: Sämisch Variation, Botvinnik Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. e3 O-O 8. cxd5 Nxd5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 d7d5 a2a3 b4c3 b2c3 c7c5 e2e3 e8g8 c4d5 f6d5 rnbq1rk1/pp3ppp/4p3/2pn4/3P4/P1P1PP2/6PP/R1BQKBNR w KQ - +E25 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 d7d5 a2a3 b4c3 b2c3 c7c5 c4d5 rnbqk2r/pp3ppp/4pn2/2pP4/3P4/P1P2P2/4P1PP/R1BQKBNR b KQkq - +E25 Nimzo-Indian Defense: Sämisch Variation, Keres Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 d7d5 a2a3 b4c3 b2c3 c7c5 c4d5 f6d5 d4c5 rnbqk2r/pp3ppp/4p3/2Pn4/8/P1P2P2/4P1PP/R1BQKBNR b KQkq - +E25 Nimzo-Indian Defense: Sämisch Variation, Romanovsky Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 f5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3 d7d5 a2a3 b4c3 b2c3 c7c5 c4d5 f6d5 d4c5 f7f5 rnbqk2r/pp4pp/4p3/2Pn1p2/8/P1P2P2/4P1PP/R1BQKBNR w KQkq - +E26 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 e2e3 rnbqk2r/pp1p1ppp/4pn2/2p5/2PP4/P1P1P3/5PPP/R1BQKBNR b KQkq - +E26 Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 e2e3 b7b6 rnbqk2r/p2p1ppp/1p2pn2/2p5/2PP4/P1P1P3/5PPP/R1BQKBNR w KQkq - +E27 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 e8g8 rnbq1rk1/pppp1ppp/4pn2/8/2PP4/P1P5/4PPPP/R1BQKBNR w KQ - +E28 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 a2a3 b4c3 b2c3 rnbq1rk1/pppp1ppp/4pn2/8/2PP4/P1P1P3/5PPP/R1BQKBNR b KQ - +E29 Nimzo-Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 f1d3 b8c6 a2a3 b4c3 b2c3 e8g8 r1bq1rk1/pp1p1ppp/2n1pn2/2p5/2PP4/P1PBP3/5PPP/R1BQK1NR w KQ - +E29 Nimzo-Indian Defense: Sämisch Variation, Capablanca Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O 8. Ne2 b6 9. e4 Ne8 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 f1d3 b8c6 a2a3 b4c3 b2c3 e8g8 g1e2 b7b6 e3e4 f6e8 r1bqnrk1/p2p1ppp/1pn1p3/2p5/2PPP3/P1PB4/4NPPP/R1BQK2R w KQ - +E30 Nimzo-Indian Defense: Leningrad Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5 rnbqk2r/pppp1ppp/4pn2/6B1/1bPP4/2N5/PP2PPPP/R2QKBNR b KQkq - +E30 Nimzo-Indian Defense: Leningrad Variation, Averbakh Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 b5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5 h7h6 g5h4 c7c5 d4d5 b7b5 rnbqk2r/p2p1pp1/4pn1p/1ppP4/1bP4B/2N5/PP2PPPP/R2QKBNR w KQkq - +E31 Nimzo-Indian Defense: Leningrad Variation, Benoni Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5 h7h6 g5h4 c7c5 d4d5 d7d6 rnbqk2r/pp3pp1/3ppn1p/2pP4/1bP4B/2N5/PP2PPPP/R2QKBNR w KQkq - +E32 Nimzo-Indian Defense: Classical Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N5/PPQ1PPPP/R1B1KBNR b KQkq - +E32 Nimzo-Indian Defense: Classical Variation, Keres Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 e8g8 a2a3 b4c3 c2c3 b7b6 rnbq1rk1/p1pp1ppp/1p2pn2/8/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQ - +E32 Nimzo-Indian Defense: Classical Variation, Vitolins-Adorjan Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 e8g8 a2a3 b4c3 c2c3 b7b5 rnbq1rk1/p1pp1ppp/4pn2/1p6/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQ - +E33 Nimzo-Indian Defense: Classical Variation, Milner-Barry Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 b8c6 g1f3 d7d6 r1bqk2r/ppp2ppp/2nppn2/8/1bPP4/2N2N2/PPQ1PPPP/R1B1KB1R w KQkq - +E33 Nimzo-Indian Defense: Classical Variation, Zurich Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 b8c6 r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq - +E34 Nimzo-Indian Defense: Classical Variation, Belyavsky Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. Nf3 Qf5 7. Qd1 e5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 c4d5 d8d5 g1f3 d5f5 c2d1 e6e5 rnb1k2r/ppp2ppp/5n2/4pq2/1b1P4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - +E34 Nimzo-Indian Defense: Classical Variation, Noa Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq - +E35 Nimzo-Indian Defense: Classical Variation, Noa Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 c4d5 e6d5 rnbqk2r/ppp2ppp/5n2/3p4/1b1P4/2N5/PPQ1PPPP/R1B1KBNR w KQkq - +E36 Nimzo-Indian Defense: Classical Variation, Noa Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/P1N5/1PQ1PPPP/R1B1KBNR b KQkq - +E36 Nimzo-Indian Defense: Classical Variation, Noa Variation, Botvinnik Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 b8c6 r1bqk2r/ppp2ppp/2n1pn2/3p4/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQkq - +E36 Nimzo-Indian Defense: Classical Variation, Noa Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4 rnbqk2r/ppp2ppp/4p3/3p4/2PPn3/P1Q5/1P2PPPP/R1B1KBNR w KQkq - +E37 Nimzo-Indian Defense: Classical Variation, Noa Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4 c3c2 rnbqk2r/ppp2ppp/4p3/3p4/2PPn3/P7/1PQ1PPPP/R1B1KBNR b KQkq - +E37 Nimzo-Indian Defense: Classical Variation, Noa Variation, San Remo Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 Nc6 8. e3 e5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4 c3c2 b8c6 e2e3 e6e5 r1bqk2r/ppp2ppp/2n5/3pp3/2PPn3/P3P3/1PQ2PPP/R1B1KBNR w KQkq - +E38 Nimzo-Indian Defense: Classical Variation, Berlin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq - +E38 Nimzo-Indian Defense: Classical Variation, Berlin Variation, Steiner Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc3+ d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 d4c5 b4c3 rnbqk2r/pp1p1ppp/4pn2/2P5/2P5/2b5/PPQ1PPPP/R1B1KBNR w KQkq - +E39 Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6 8. Bf4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 d4c5 e8g8 a2a3 b4c5 g1f3 b7b6 c1f4 rnbq1rk1/p2p1ppp/1p2pn2/2b5/2P2B2/P1N2N2/1PQ1PPPP/R3KB1R b KQ - +E39 Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 d4c5 e8g8 rnbq1rk1/pp1p1ppp/4pn2/2P5/1bP5/2N5/PPQ1PPPP/R1B1KBNR w KQ - +E40 Nimzo-Indian Defense: Normal Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR b KQkq - +E40 Nimzo-Indian Defense: Normal Variation, Taimanov Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b8c6 r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - +E41 Nimzo-Indian Defense: Hübner Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - +E41 Nimzo-Indian Defense: Hübner Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 f1d3 b8c6 g1f3 b4c3 b2c3 d7d6 r1bqk2r/pp3ppp/2nppn2/2p5/2PP4/2PBPN2/P4PPP/R1BQK2R w KQkq - +E41 Nimzo-Indian Defense: Normal Variation, Hübner Deferred 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1f3 e8g8 rnbq1rk1/pp1p1ppp/4pn2/2p5/1bPP4/2N1PN2/PP3PPP/R1BQKB1R w KQ - +E42 Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1e2 rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQkq - +E42 Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. a3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1e2 c5d4 e3d4 e8g8 a2a3 rnbq1rk1/pp1p1ppp/4pn2/8/1bPP4/P1N5/1P2NPPP/R1BQKB1R b KQ - +E42 Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation, Sherbakov Attack 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. c5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1e2 c5d4 e3d4 e8g8 c4c5 rnbq1rk1/pp1p1ppp/4pn2/2P5/1b1P4/2N5/PP2NPPP/R1BQKB1R b KQ - +E43 Nimzo-Indian Defense: St. Petersburg Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6 rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - +E44 Nimzo-Indian Defense: Fischer Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6 g1e2 rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQkq - +E45 Nimzo-Indian Defense: Normal Variation, Bronstein (Byrne) Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6 g1e2 c8a6 rn1qk2r/p1pp1ppp/bp2pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R w KQkq - +E46 Nimzo-Indian Defense: Normal Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQ - +E46 Nimzo-Indian Defense: Reshevsky Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1e2 rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQ - +E46 Nimzo-Indian Defense: Simagin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Bd6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1e2 d7d5 a2a3 b4d6 rnbq1rk1/ppp2ppp/3bpn2/3p4/2PP4/P1N1P3/1P2NPPP/R1BQKB1R w KQ - +E47 Nimzo-Indian Defense: Normal Variation, Bishop Attack 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2NBP3/PP3PPP/R1BQK1NR b KQ - +E48 Nimzo-Indian Defense: Normal Variation, Bishop Attack, Classical Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2NBP3/PP3PPP/R1BQK1NR w KQ - +E48 Nimzo-Indian Defense: Ragozin Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 b8c6 e1g1 r1bq1rk1/ppp2ppp/2n1pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 b - - +E49 Nimzo-Indian Defense: Normal Variation, Botvinnik System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 a2a3 b4c3 b2c3 rnbq1rk1/ppp2ppp/4pn2/3p4/2PP4/P1PBP3/5PPP/R1BQK1NR b KQ - +E50 Nimzo-Indian Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1PN2/PP3PPP/R1BQKB1R b KQ - +E51 Nimzo-Indian Defense: Normal Variation, Ragozin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2N1PN2/PP3PPP/R1BQKB1R w KQ - +E51 Nimzo-Indian Defense: Normal Variation, Sämisch Deferred 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 a2a3 rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/P1N1PN2/1P3PPP/R1BQKB1R b KQ - +E51 Nimzo-Indian Defense: Ragozin Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O dxc4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 b8c6 e1g1 d5c4 r1bq1rk1/ppp2ppp/2n1pn2/8/1bpP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +E52 Nimzo-Indian Defense: Normal Variation, Schlechter Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 b7b6 rnbq1rk1/p1p2ppp/1p2pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQ - +E53 Nimzo-Indian Defense: Normal Variation, Gligoric System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 rnbq1rk1/pp3ppp/4pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQ - +E53 Nimzo-Indian Defense: Normal Variation, Gligoric System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b8d7 r1bq1rk1/pp1n1ppp/4pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +E53 Nimzo-Indian Defense: Normal Variation, Gligoric System, Keres Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b7b6 rnbq1rk1/p4ppp/1p2pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +E54 Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange at c4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 d5c4 d3c4 rnbq1rk1/pp3ppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 b - - +E54 Nimzo-Indian Defense: Normal Variation, Gligoric System, Smyslov Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Qe7 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 d5c4 d3c4 d8e7 rnb2rk1/pp2qppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 w - - +E55 Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 d5c4 d3c4 b8d7 r1bq1rk1/pp1n1ppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 w - - +E56 Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b8c6 r1bq1rk1/pp3ppp/2n1pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - +E58 Nimzo-Indian Defense: Normal Variation, Bernstein Defense, Exchange Line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b8c6 a2a3 b4c3 b2c3 r1bq1rk1/pp3ppp/2n1pn2/2pp4/2PP4/P1PBPN2/5PPP/R1BQ1RK1 b - - +E59 Nimzo-Indian Defense: Normal Variation, Bernstein Defense 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 g1f3 c7c5 e1g1 b8c6 a2a3 b4c3 b2c3 d5c4 d3c4 r1bq1rk1/pp3ppp/2n1pn2/2p5/2BP4/P1P1PN2/5PPP/R1BQ1RK1 b - - +E60 Grünfeld Defense: Counterthrust Variation 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 d7d5 rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq - +E60 Indian Defense: Anti-Grünfeld, Adorjan Gambit 1. d4 Nf6 2. c4 g6 3. d5 b5 d2d4 g8f6 c2c4 g7g6 d4d5 b7b5 rnbqkb1r/p1pppp1p/5np1/1p1P4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - +E60 Indian Defense: Anti-Grünfeld, Advance Variation 1. d4 Nf6 2. c4 g6 3. d5 d2d4 g8f6 c2c4 g7g6 d4d5 rnbqkb1r/pppppp1p/5np1/3P4/2P5/8/PP2PPPP/RNBQKBNR b KQkq - +E60 Indian Defense: Anti-Grünfeld, Alekhine Variation 1. d4 Nf6 2. c4 g6 3. f3 d2d4 g8f6 c2c4 g7g6 f2f3 rnbqkb1r/pppppp1p/5np1/8/2PP4/5P2/PP2P1PP/RNBQKBNR b KQkq - +E60 Indian Defense: Anti-Grünfeld, Alekhine Variation, Leko Gambit 1. d4 Nf6 2. c4 g6 3. f3 e5 d2d4 g8f6 c2c4 g7g6 f2f3 e7e5 rnbqkb1r/pppp1p1p/5np1/4p3/2PP4/5P2/PP2P1PP/RNBQKBNR w KQkq - +E60 Indian Defense: King's Indian Variation, Fianchetto Variation 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 rnbqk2r/ppppppbp/5np1/8/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq - +E60 Indian Defense: West Indian Defense 1. d4 Nf6 2. c4 g6 d2d4 g8f6 c2c4 g7g6 rnbqkb1r/pppppp1p/5np1/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - +E60 King's Indian Defense: Fianchetto Variation, Immediate Fianchetto 1. d4 Nf6 2. c4 g6 3. g3 d2d4 g8f6 c2c4 g7g6 g2g3 rnbqkb1r/pppppp1p/5np1/8/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq - +E60 King's Indian Defense: Fianchetto Variation, Pterodactyl Variation 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 c5 5. Bg2 Qa5+ d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 g2g3 c7c5 f1g2 d8a5 rnb1k2r/pp1pppbp/5np1/q1p5/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq - +E60 King's Indian Defense: Fianchetto Variation, Yugoslav System 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c5 rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - +E60 King's Indian Defense: Normal Variation, King's Knight Variation 1. d4 Nf6 2. Nf3 g6 3. c4 d2d4 g8f6 g1f3 g7g6 c2c4 rnbqkb1r/pppppp1p/5np1/8/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - +E60 King's Indian Defense: Santasiere Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. b4 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 b2b4 rnbqk2r/ppppppbp/5np1/8/1PPP4/5N2/P3PPPP/RNBQKB1R b KQkq - +E60 King's Indian Defense: Semi-Classical Variation, Benoni Variation 1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. Nc3 O-O 5. e3 d6 6. Be2 c6 c2c4 g8f6 g1f3 g7g6 d2d4 f8g7 b1c3 e8g8 e2e3 d7d6 f1e2 c7c6 rnbq1rk1/pp2ppbp/2pp1np1/8/2PP4/2N1PN2/PP2BPPP/R1BQK2R w KQ - +E60 King's Indian Defense: Semi-Classical Variation, Hollywood Variation 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e3 d6 6. Be2 Nc6 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 b1c3 e8g8 e2e3 d7d6 f1e2 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/2PP4/2N1PN2/PP2BPPP/R1BQK2R w KQ - +E60 Neo-Grünfeld Defense: Non- or Delayed Fianchetto 1. d4 Nf6 2. Nf3 g6 3. c4 d5 d2d4 g8f6 g1f3 g7g6 c2c4 d7d5 rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - +E60 Queen's Pawn, Mengarini Attack 1. d4 Nf6 2. c4 g6 3. Qc2 d2d4 g8f6 c2c4 g7g6 d1c2 rnbqkb1r/pppppp1p/5np1/8/2PP4/8/PPQ1PPPP/RNB1KBNR b KQkq - +E61 King's Indian Defense 1. d4 Nf6 2. c4 g6 3. Nc3 d2d4 g8f6 c2c4 g7g6 b1c3 rnbqkb1r/pppppp1p/5np1/8/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - +E61 King's Indian Defense: Semi-Classical Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. e3 d6 6. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 e8g8 e2e3 d7d6 f1e2 rnbq1rk1/ppp1ppbp/3p1np1/8/2PP4/2N1PN2/PP2BPPP/R1BQK2R b KQ - +E61 King's Indian Defense: Semi-Classical Variation, Queenside Storm Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. e3 d6 6. Be2 Nbd7 7. O-O e5 8. b4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 e8g8 e2e3 d7d6 f1e2 b8d7 e1g1 e7e5 b2b4 r1bq1rk1/pppn1pbp/3p1np1/4p3/1PPP4/2N1PN2/P3BPPP/R1BQ1RK1 b - - +E61 King's Indian Defense: Smyslov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 c1g5 rnbqk2r/ppp1ppbp/3p1np1/6B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - +E62 King's Indian Defense: Fianchetto Variation, Delayed Fianchetto 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 rnbqk2r/ppp1ppbp/3p1np1/8/2PP4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - +E62 King's Indian Defense: Fianchetto Variation, Karlsbad Variation 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 b1c3 d7d6 g1f3 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ - +E62 King's Indian Defense: Fianchetto Variation, Kavalek Defense 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c6 7. Nc3 Qa5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c6 b1c3 d8a5 rnb2rk1/pp2ppbp/2pp1np1/q7/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E62 King's Indian Defense: Fianchetto Variation, Larsen Defense 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c6 7. Nc3 Bf5 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c6 b1c3 c8f5 rn1q1rk1/pp2ppbp/2pp1np1/5b2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E62 King's Indian Defense: Fianchetto Variation, Lesser Simagin (Spassky) 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 7. O-O Bf5 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 b1c3 d7d6 g1f3 b8c6 e1g1 c8f5 r2q1rk1/ppp1ppbp/2np1np1/5b2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E62 King's Indian Defense: Fianchetto Variation, Simagin Variation 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nc6 7. Nc3 Bg4 g1f3 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d6 d2d4 b8c6 b1c3 c8g4 r2q1rk1/ppp1ppbp/2np1np1/8/2PP2b1/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E62 King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 e5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 e7e5 r1bq1rk1/ppp2pbp/2np1np1/4p3/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E63 King's Indian Defense: Fianchetto Variation, Panno Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 a7a6 r1bq1rk1/1pp1ppbp/p1np1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E63 King's Indian Defense: Fianchetto Variation, Panno Variation, Blockade Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 e5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 a7a6 d4d5 c6a5 f3d2 c7c5 d1c2 e7e5 r1bq1rk1/1p3pbp/p2p1np1/n1pPp3/2P5/2N3P1/PPQNPPBP/R1B2RK1 w - e6 +E63 King's Indian Defense: Fianchetto Variation, Panno Variation, Donner Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 b5 12. Bb2 bxc4 13. bxc4 Bh6 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 a7a6 d4d5 c6a5 f3d2 c7c5 d1c2 a8b8 b2b3 b7b5 c1b2 b5c4 b3c4 g7h6 1rbq1rk1/4pp1p/p2p1npb/n1pP4/2P5/2N3P1/PBQNPPBP/R4RK1 w - - +E63 King's Indian Defense: Fianchetto Variation, Panno Variation, Korchnoi Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. h3 Rb8 9. Be3 b5 10. Nd2 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8c6 b1c3 a7a6 h2h3 a8b8 c1e3 b7b5 f3d2 1rbq1rk1/2p1ppbp/p1np1np1/1p6/2PP4/2N1B1PP/PP1NPPB1/R2Q1RK1 b - - +E64 King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 c5 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 b1c3 d7d6 g1f3 c7c5 rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ - +E65 King's Indian Defense: Fianchetto Variation, Yugoslav Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 7. Nc3 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c5 b1c3 rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +E65 King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. d4 d6 7. Nc3 Nc6 8. dxc5 dxc5 g1f3 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 c7c5 d2d4 d7d6 b1c3 b8c6 d4c5 d6c5 r1bq1rk1/pp2ppbp/2n2np1/2p5/2P5/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E66 King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 7. Nc3 Nc6 8. d5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 c7c5 b1c3 b8c6 d4d5 r1bq1rk1/pp2ppbp/2np1np1/2pP4/2P5/2N2NP1/PP2PPBP/R1BQ1RK1 b - - +E67 King's Indian Defense: Fianchetto Variation, Classical Fianchetto 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8d7 b1c3 e7e5 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E67 King's Indian Defense: Fianchetto Variation, Debrecen Defense 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 e8g8 b1c3 d7d6 g1f3 b8d7 r1bq1rk1/pppnppbp/3p1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ - +E67 King's Indian Defense: Fianchetto Variation, Double Fianchetto Attack 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. b3 d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d6 c2c4 b8d7 b1c3 e7e5 b2b3 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PP4/1PN2NP1/P3PPBP/R1BQ1RK1 b - - +E67 King's Indian Defense: Fianchetto Variation, Hungarian Variation 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nbd7 7. O-O a6 c2c4 g8f6 b1c3 g7g6 g2g3 f8g7 f1g2 e8g8 d2d4 d7d6 g1f3 b8d7 e1g1 a7a6 r1bq1rk1/1ppnppbp/p2p1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - +E68 King's Indian Defense: Fianchetto Variation, Classical Variation 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8d7 b1c3 e7e5 e2e4 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2NP1/PP3PBP/R1BQ1RK1 b - - +E68 King's Indian Defense: Fianchetto Variation, Long Variation 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5 11. Re1 a5 d2d4 g8f6 g1f3 g7g6 c2c4 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8d7 b1c3 e7e5 e2e4 e5d4 f3d4 f8e8 h2h3 d7c5 f1e1 a7a5 r1bqr1k1/1pp2pbp/3p1np1/p1n5/2PNP3/2N3PP/PP3PB1/R1BQR1K1 w - - +E69 King's Indian Defense: Fianchetto Variation, Classical Main Line 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 d2d4 g8f6 c2c4 g7g6 g1f3 f8g7 g2g3 e8g8 f1g2 d7d6 e1g1 b8d7 b1c3 e7e5 e2e4 c7c6 h2h3 r1bq1rk1/pp1n1pbp/2pp1np1/4p3/2PPP3/2N2NPP/PP3PB1/R1BQ1RK1 b - - +E70 King's Indian Defense: Accelerated Averbakh Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 c1g5 rnbqk2r/ppp1ppbp/3p1np1/6B1/2PPP3/2N5/PP3PPP/R2QKBNR b KQkq - +E70 King's Indian Defense: Kramer Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nge2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1e2 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP2NPPP/R1BQKB1R b KQkq - +E70 King's Indian Defense: Normal Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 rnbqk2r/ppppppbp/5np1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - +E70 King's Indian Defense: Normal Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq - +E71 King's Indian Defense: Makogonov Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 h2h3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N4P/PP3PP1/R1BQKBNR b KQkq - +E72 King's Indian Defense: Normal Variation, Deferred Fianchetto 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g2g3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N3P1/PP3P1P/R1BQKBNR b KQkq - +E72 King's Indian Defense: Pomar System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 O-O 6. Bg2 e5 7. Nge2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g2g3 e8g8 f1g2 e7e5 g1e2 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N3P1/PP2NPBP/R1BQK2R b KQ - +E73 King's Indian Defense: Averbakh Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 rnbq1rk1/ppp1ppbp/3p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR b KQ - +E73 King's Indian Defense: Averbakh Variation, Flexible Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 h6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 h7h6 rnbq1rk1/ppp1ppb1/3p1npp/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Geller Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Nbd7 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 b8d7 r1bq1rk1/pppnppbp/3p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Modern Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Na6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 b8a6 r1bq1rk1/ppp1ppbp/n2p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Modern Defense, Burgess Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Na6 7. Qd2 c6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 b8a6 d1d2 c7c6 r1bq1rk1/pp2ppbp/n1pp1np1/6B1/2PPP3/2N5/PP1QBPPP/R3K1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Nc6 Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Averbakh Variation, Spanish Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 a6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 a7a6 rnbq1rk1/1pp1ppbp/p2p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E73 King's Indian Defense: Normal Variation, Standard Development 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP2BPPP/R1BQK1NR b KQkq - +E73 King's Indian Defense: Semi-Averbakh System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1e3 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N1B3/PP2BPPP/R2QK1NR b KQ - +E74 King's Indian Defense: Averbakh Variation, Benoni Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 rnbq1rk1/pp2ppbp/3p1np1/2p3B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ - +E74 King's Indian Defense: Averbakh Variation, Benoni Defense, Advance Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 d4d5 rnbq1rk1/pp2ppbp/3p1np1/2pP2B1/2P1P3/2N5/PP2BPPP/R2QK1NR b KQ - +E74 King's Indian Defense: Averbakh Variation, Benoni Defense, Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. dxc5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 d4c5 rnbq1rk1/pp2ppbp/3p1np1/2P3B1/2P1P3/2N5/PP2BPPP/R2QK1NR b KQ - +E75 King's Indian Defense: Averbakh Variation, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 d4d5 e7e6 rnbq1rk1/pp3pbp/3ppnp1/2pP2B1/2P1P3/2N5/PP2BPPP/R2QK1NR w KQ - +E76 King's Indian Defense: Four Pawns Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 rnbqk2r/ppp1ppbp/3p1np1/8/2PPPP2/2N5/PP4PP/R1BQKBNR b KQkq - +E76 King's Indian Defense: Four Pawns Attack, Dynamic Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 rnbq1rk1/pp2ppbp/3p1np1/2pP4/2P1PP2/2N2N2/PP4PP/R1BQKB1R b KQ - +E76 King's Indian Defense: Four Pawns Attack, Modern Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 Na6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 b8a6 r1bqk2r/ppp1ppbp/n2p1np1/8/2PPPP2/2N5/PP4PP/R1BQKBNR w KQkq - +E77 King's Indian Defense: Four Pawns Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 f2f4 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPPP2/2N5/PP2B1PP/R1BQK1NR b KQ - +E77 King's Indian Defense: Four Pawns Attack, Florentine Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. e5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 e6d5 e4e5 rnbq1rk1/pp3pbp/3p1np1/2ppP3/2P2P2/2N2N2/PP2B1PP/R1BQK2R b KQ - +E77 King's Indian Defense: Four Pawns Attack, Normal Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 rnbq1rk1/pp3pbp/3ppnp1/2pP4/2P1PP2/2N2N2/PP2B1PP/R1BQK2R b KQ - +E77 King's Indian Defense: Six Pawns Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. d5 e6 8. dxe6 fxe6 9. g4 Nc6 10. h4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 f1e2 c7c5 d4d5 e7e6 d5e6 f7e6 g2g4 b8c6 h2h4 r1bq1rk1/pp4bp/2nppnp1/2p5/2P1PPPP/2N5/PP2B3/R1BQK1NR b KQ - +E78 King's Indian Defense: Four Pawns Attack, Fluid Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 f1e2 rnbq1rk1/pp2ppbp/3p1np1/2p5/2PPPP2/2N2N2/PP2B1PP/R1BQK2R b KQ - +E79 King's Indian Defense: Four Pawns Attack, Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. Be2 cxd4 8. Nxd4 Nc6 9. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 f1e2 c5d4 f3d4 b8c6 c1e3 r1bq1rk1/pp2ppbp/2np1np1/8/2PNPP2/2N1B3/PP2B1PP/R2QK2R b KQ - +E80 King's Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP4PP/R1BQKBNR b KQkq - +E81 King's Indian Defense: Steiner Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1g5 rnbq1rk1/ppp1ppbp/3p1np1/6B1/2PPP3/2N2P2/PP4PP/R2QKBNR b KQ - +E81 King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Nge2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 g1e2 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP2N1PP/R1BQKB1R b KQ - +E81 King's Indian Defense: Sämisch Variation, Byrne Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 c7c6 f1d3 a7a6 rnbq1rk1/1p2ppbp/p1pp1np1/8/2PPP3/2NBBP2/PP4PP/R2QK1NR w KQ - +E81 King's Indian Defense: Sämisch Variation, Normal Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP4PP/R1BQKBNR w KQ - +E82 King's Indian Defense: Sämisch Variation, Double Fianchetto 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 b6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b7b6 rnbq1rk1/p1p1ppbp/1p1p1np1/8/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ - +E83 King's Indian Defense: Sämisch Variation, Panno Formation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a7a6 r1bq1rk1/1pp1ppbp/p1np1np1/8/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ - +E83 King's Indian Defense: Sämisch Variation, Ruban Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 Rb8 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a8b8 1rbq1rk1/ppp1ppbp/2np1np1/8/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ - +E83 King's Indian Defense: Sämisch Variation, Yates Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 r1bq1rk1/ppp1ppbp/2np1np1/8/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ - +E84 King's Indian Defense: Sämisch Variation, Panno Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a7a6 d1d2 a8b8 1rbq1rk1/1pp1ppbp/p1np1np1/8/2PPP3/2N1BP2/PP1QN1PP/R3KB1R w KQ - +E85 King's Indian Defense: Sämisch Variation, Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ - +E86 King's Indian Defense: Sämisch Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 g1e2 c7c6 rnbq1rk1/pp3pbp/2pp1np1/4p3/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ - +E87 King's Indian Defense: Sämisch Variation, Bronstein Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Nh5 8. Qd2 Qh4+ 9. g3 Nxg3 10. Qf2 Nxf1 11. Qxh4 Nxe3 12. Ke2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 f6h5 d1d2 d8h4 g2g3 h5g3 d2f2 g3f1 f2h4 f1e3 e1e2 rnb2rk1/ppp2pbp/3p2p1/3Pp3/2P1P2Q/2N1nP2/PP2K2P/R5NR b - - +E87 King's Indian Defense: Sämisch Variation, Closed Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 rnbq1rk1/ppp2pbp/3p1np1/3Pp3/2P1P3/2N1BP2/PP4PP/R2QKBNR b KQ - +E87 King's Indian Defense: Sämisch Variation, Orthodox Variation, Bronstein Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Nh5 8. Qd2 Qh4+ 9. g3 Nxg3 10. Qf2 Nxf1 11. Qxh4 Nxe3 12. Ke2 Nxc4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 f6h5 d1d2 d8h4 g2g3 h5g3 d2f2 g3f1 f2h4 f1e3 e1e2 e3c4 rnb2rk1/ppp2pbp/3p2p1/3Pp3/2n1P2Q/2N2P2/PP2K2P/R5NR w - - +E89 King's Indian Defense: Sämisch Variation, Closed Variation, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 g1e2 c7c6 d4d5 c6d5 rnbq1rk1/pp3pbp/3p1np1/3pp3/2P1P3/2N1BP2/PP2N1PP/R2QKB1R w KQ - +E90 King's Indian Defense: Larsen Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 c1e3 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N1BN2/PP3PPP/R2QKB1R b KQ - +E90 King's Indian Defense: Normal Variation, Rare Defenses 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - +E90 King's Indian Defense: Zinnowitz Variation 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Bg5 g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 d2d4 e8g8 c1g5 rnbq1rk1/ppp1ppbp/3p1np1/6B1/2PPP3/2N2N2/PP3PPP/R2QKB1R b KQ - +E91 King's Indian Defense: Kazakh Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Na6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 b8a6 r1bq1rk1/ppp1ppbp/n2p1np1/8/2PPP3/2N2N2/PP2BPPP/R1BQK2R w KQ - +E91 King's Indian Defense: Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2N2/PP2BPPP/R1BQK2R b KQ - +E92 King's Indian Defense: Exchange Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. dxe5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4e5 rnbq1rk1/ppp2pbp/3p1np1/4P3/2P1P3/2N2N2/PP2BPPP/R1BQK2R b KQ - +E92 King's Indian Defense: Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQK2R w KQ - +E92 King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 c1e3 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N1BN2/PP2BPPP/R2QK2R b KQ - +E92 King's Indian Defense: Petrosian Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 rnbq1rk1/ppp2pbp/3p1np1/3Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R b KQ - +E92 King's Indian Defense: Petrosian Variation, Stein Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 a5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 a7a5 rnbq1rk1/1pp2pbp/3p1np1/p2Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R w KQ - +E93 King's Indian Defense: Petrosian Variation, Keres Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nh5 11. h4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 b8d7 c1g5 h7h6 g5h4 g6g5 h4g3 f6h5 h2h4 r1bq1rk1/pppn1pb1/3p3p/3Pp1pn/2P1P2P/2N2NB1/PP2BPP1/R2QK2R b KQ - +E93 King's Indian Defense: Petrosian Variation, Normal Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 b8d7 r1bq1rk1/pppn1pbp/3p1np1/3Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R w KQ - +E94 King's Indian Defense: Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 b - - +E94 King's Indian Defense: Orthodox Variation, Donner Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O c6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 c7c6 rnbq1rk1/pp3pbp/2pp1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E94 King's Indian Defense: Orthodox Variation, Glek Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Na6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8a6 r1bq1rk1/ppp2pbp/n2p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E94 King's Indian Defense: Orthodox Variation, Positional Defense 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 g6 6. Be2 Bg7 7. O-O O-O d2d4 g8f6 c2c4 d7d6 b1c3 b8d7 e2e4 e7e5 g1f3 g7g6 f1e2 f8g7 e1g1 e8g8 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E94 King's Indian Defense: Orthodox Variation, Positional Defense, Closed Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. d5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 b8d7 e1g1 e7e5 d4d5 r1bq1rk1/pppn1pbp/3p1np1/3Pp3/2P1P3/2N2N2/PP2BPPP/R1BQ1RK1 b - - +E94 King's Indian Defense: Orthodox Variation, Ukrainian Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O a5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 a7a5 rnbq1rk1/1pp2pbp/3p1np1/p3p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E95 King's Indian Defense: Orthodox Variation 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8d7 f1e1 r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQR1K1 b - - +E96 King's Indian Defense: Orthodox Variation, Positional Defense, Main Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 c6 9. Bf1 a5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8d7 f1e1 c7c6 e2f1 a7a5 r1bq1rk1/1p1n1pbp/2pp1np1/p3p3/2PPP3/2N2N2/PP3PPP/R1BQRBK1 w - - +E97 King's Indian Defense: Orthodox Variation, Aronin-Taimanov Defense 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 r1bq1rk1/ppp2pbp/2np1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - - +E97 King's Indian Defense: Orthodox Variation, Bayonet Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 b2b4 r1bq1rk1/ppp1npbp/3p1np1/3Pp3/1PP1P3/2N2N2/P3BPPP/R1BQ1RK1 b - - +E97 King's Indian Defense: Orthodox Variation, Bayonet Attack, Sokolov's Line 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. d4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 Nh5 10. Re1 g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 e8g8 d2d4 d7d6 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 b2b4 f6h5 f1e1 r1bq1rk1/ppp1npbp/3p2p1/3Pp2n/1PP1P3/2N2N2/P3BPPP/R1BQR1K1 b - - +E97 King's Indian Defense: Orthodox Variation, Bayonet Attack, Yepishin's Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 Nh5 10. Qc2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 b2b4 f6h5 d1c2 r1bq1rk1/ppp1npbp/3p2p1/3Pp2n/1PP1P3/2N2N2/P1Q1BPPP/R1B2RK1 b - - +E97 King's Indian Defense: Orthodox Variation, Korchnoi Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Bd2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 c1d2 r1bq1rk1/ppp1npbp/3p1np1/3Pp3/2P1P3/2N2N2/PP1BBPPP/R2Q1RK1 b - - +E97 King's Indian Defense: Orthodox Variation, Modern System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3d2 r1bq1rk1/ppp1npbp/3p1np1/3Pp3/2P1P3/2N5/PP1NBPPP/R1BQ1RK1 b - - +E98 King's Indian Defense: Orthodox Variation, Classical System 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 r1bq1rk1/ppp1npbp/3p1np1/3Pp3/2P1P3/2N5/PP2BPPP/R1BQNRK1 b - - +E98 King's Indian Defense: Orthodox Variation, Classical System, Kozul Gambit 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Rc1 Ng6 14. c5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 c1e3 f7f5 f2f3 f5f4 e3f2 g6g5 a1c1 e7g6 c4c5 r1bq1rk1/pppn2bp/3p2n1/2PPp1p1/4Pp2/2N2P2/PP2BBPP/2RQNRK1 b - - +E98 King's Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 c1e3 r1bq1rk1/pppnnpbp/3p2p1/3Pp3/2P1P3/2N1B3/PP2BPPP/R2QNRK1 b - - +E99 King's Indian Defense: Orthodox Variation, Classical System, Benko Attack 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. f3 f5 11. g4 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 f2f3 f7f5 g2g4 r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P1P1/2N2P2/PP2B2P/R1BQNRK1 b - - +E99 King's Indian Defense: Orthodox Variation, Classical System, Traditional Line 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. f3 f5 d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 f2f3 f7f5 r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P3/2N2P2/PP2B1PP/R1BQNRK1 w - - \ No newline at end of file diff --git a/opening/opening_test.go b/opening/opening_test.go index 3498eb8..89cc902 100644 --- a/opening/opening_test.go +++ b/opening/opening_test.go @@ -41,7 +41,7 @@ func TestFind(t *testing.T) { } book := opening.NewBookECO() o := book.Find(g.Moves()) - expected := "Center Counter; Scandanavian; B01" + expected := "Scandinavian Defense" if o == nil || o.Title() != expected { t.Fatalf("expected to find opening %s but got %s", expected, o.Title()) } @@ -55,8 +55,8 @@ func TestPossible(t *testing.T) { book := opening.NewBookECO() openings := book.Possible(g.Moves()) actual := len(openings) - if actual != 4 { - t.Fatalf("expected %d possible openings but got %d", 4, actual) + if actual != 22 { + t.Fatalf("expected %d possible openings but got %d", 22, actual) } } diff --git a/pgn.go b/pgn.go index a77040f..37b76af 100644 --- a/pgn.go +++ b/pgn.go @@ -224,10 +224,6 @@ func getTagPairs(pgn string) []*TagPair { return tagPairs } -var ( - moveNumRegex = regexp.MustCompile(`(?:\d+\.+)?(.*)`) -) - type moveWithComment struct { MoveStr string Comments []string @@ -262,17 +258,6 @@ func moveListWithComments(pgn string) ([]moveWithComment, Outcome) { return moves, outcome } -func removeSection(leftChar, rightChar, s string) string { - r := regexp.MustCompile(leftChar + ".*?" + rightChar) - for { - i := r.FindStringIndex(s) - if i == nil { - return s - } - s = s[0:i[0]] + s[i[1]:] - } -} - func stripTagPairs(pgn string) string { lines := strings.Split(pgn, "\n") cp := []string{} diff --git a/piece.go b/piece.go index 7a177d4..975b67a 100644 --- a/piece.go +++ b/piece.go @@ -12,7 +12,7 @@ const ( Black ) -// Other returns the opposie color of the receiver. +// Other returns the opposite color of the receiver. func (c Color) Other() Color { switch c { case White: @@ -89,14 +89,6 @@ func (p PieceType) String() string { return "" } -func (p PieceType) promotableTo() bool { - switch p { - case Queen, Rook, Bishop, Knight: - return true - } - return false -} - // Piece is a piece type with a color. type Piece int8