tenshi t

@Mustafa-Agha Not to throw any shade onto Sebastian, but have you also considered using another (better) chess engine? I don't know if he released the source for the 2nd video...

I want this feature in some way or another, maybe even as a marker type like `ThisType`. I have a "language" for matching tree-like structures: ``` { type: "NOT_NUMBER"; value:...

If there is a friendly king behind the pawn on the same file and the pawn captures en passant, and if there is an open file attacked by the enemy,...

@FismanMaxim You could try taking that condition out and running Perft_Divide, comparing incorrect results with an engine like Stockfish. Then you can easily see what illegal moves this condition prevents....