For en-passant, I had put already fps to 3. The pawn can advance 1, 2, 3 yes but the problem is en-passant. A pawn on 6 can take ep a pawn which advance 3 sq. Good. A pawn on 7 can take ep a pawn which advance 2 sq. Good. But a pawn on 7 cannot take ep a pawn which advance 3 sq.
Gross chess works fine for that. I can't see where is what I miss for Devingt.
Thank you for your help.
For en-passant, I had put already fps to 3. The pawn can advance 1, 2, 3 yes but the problem is en-passant. A pawn on 6 can take ep a pawn which advance 3 sq. Good. A pawn on 7 can take ep a pawn which advance 2 sq. Good. But a pawn on 7 cannot take ep a pawn which advance 3 sq.
Gross chess works fine for that. I can't see where is what I miss for Devingt.