Wrong Rook Pawn - Opposite-colored Bishops

Opposite-colored Bishops

8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h Draw because of the wrong rook pawn

Usually when each side has a bishop and they are on opposite-colored squares and one side has two widely-separated pawns, the stronger side wins. However, if one of the pawns is the wrong rook pawn and the defending king is blocking it, the position is usually a draw because the defending bishop can stop the other pawn. If the defending bishop is sacrificed for the other pawn, the resulting position is a draw like the ones above (Fine & Benko 2003:192).

8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h Draw because of wrong rook pawn

With opposite-colored bishops, two connected pawns win if they safely reach the sixth rank, except when one is the wrong rook pawn, i.e. the defending bishop is on the long diagonal that includes the square on which the rook pawn would promote (de la Villa 2008:106).