Well first, I decided to change the promotion rule to:
8th rank:less than a rook
9th rank:also to rook
10th rank: also to the 3 strong pieces
The reason for the initial rule was to not always promote to queen, but we got always promote to rook (I mean practically). The new rule is more flexible, but I'm afraid that it still leads to many rook promotions.
Second: the pawn double move still doesn't work, or it is something I did wrong?
Well first, I decided to change the promotion rule to:
8th rank:less than a rook
9th rank:also to rook
10th rank: also to the 3 strong pieces
The reason for the initial rule was to not always promote to queen, but we got always promote to rook (I mean practically). The new rule is more flexible, but I'm afraid that it still leads to many rook promotions.
Second: the pawn double move still doesn't work, or it is something I did wrong?