an Entity references as follows:
In a chess endgame, a wrong bishop is a bishop that would have been better placed on the opposite square color; in other words, a bishop is unable to guard squares of the other color. This most commonly occurs with a bishop and one of its rook pawns, but it also occurs with a rook versus a bishop, a rook and one rook pawn versus a bishop, and possibly with a rook and one bishop pawn versus a bishop.