Crash in variant teeko

[yjf2002ghty]

fairy-stockfish/variant-nnue-tools#19

In brief:
At evaluate.cpp:1301

                for (int j = 0; j < pos.connect_n(); j++)
                    if (pos.pieces(Us) & (s - j * d))
                        c++;
                score += make_score(200, 200)  * c / (pos.connect_n() - c) / (pos.connect_n() - c);   //////// Failed to handle pos.connect_n()=c condition
            }
        }
    }

[RainRat]

Root cause is an optimization that didn't work right when variants inherit from each other. Fix is available at: https://github.com/fairy-stockfish/Fairy-Stockfish/pull/768/files#diff-af04472c8b7c849fcee248cf30695670e87f00f0b1f8763bd738823ee4f1258e

Temporary solution: Create a definition of Teeko that doesn't use any variant inheritance.

[Belzedar94]

It's happening the same for variant: Symphony (NNUE datagen is crashing). I guess that's related, but if it isn't, I'll create a separate issue.

[RainRat]

Try creating a definition that doesn't use inheritance, and if that fixes it, it's the same problem.