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This situation is also known as having the wrong-colored bishop or wrong bishop (i.e. the bishop is on the wrong-colored squares in relation to the rook pawn). [2] In many cases, the wrong rook pawn will only draw, when any other pawn would win. This is because the defending side can sometimes get their king to the corner in front of the pawn ...
A rook and a rook pawn always win against the wrong bishop, as in this position. The defender has the wrong bishop if it is the one on the same color as the pawn's promotion square. The winning procedure is to give up the pawn at the right time to get to a winning rook versus bishop endgame. If the bishop was on the other color, the defender ...
Rook and a bishop versus two knights: this is usually a win for the rook and bishop but it takes up to 223 moves. [61] The result of this endgame was unknown until computer analysis proved the forced win. Rook and a knight versus two knights: this is usually a draw, but there are some wins for the rook and knight that take up to 243 moves. [83]
Positions with two rook pawns are often a draw. A position with a rook pawn and bishop pawn on the same side of the board is usually a draw if they are not far advanced, but the defense is difficult. Overall, the rook pawn and bishop pawn win in 61% of games. [85] The rook pawn and bishop pawn almost always win if they both reach their sixth rank.
Being a five-piece endgame, the rook and bishop versus rook endgame has been fully analysed using computers. Endgame tablebases show that 40.1% of the legal positions with this material are theoretical wins, but that includes many unnatural positions that are unlikely to occur in games.
A pawn that advances to its last rank is promoted to a queen, rook, bishop, or knight of the same color. The pawn is replaced by the new piece on the same move. The choice of promotion is not limited to pieces that have been captured; thus, a player could, in theory, have as many as nine queens, ten rooks, ten bishops, or ten knights on the board.
Heading for a bishop and wrong rook pawn ending is a fairly common drawing resource available to the inferior side. [4] The knight and rook pawn position in the diagram, however, is a draw only if White's pawn is already on the seventh rank, making this drawing resource available to the defender much less frequently. White wins if the pawn is ...
If the pawns are on the opposite color as the defender's bishop, the defender may be able to blockade the pawns and draw. If both pawns can safely reach the sixth rank, they win unless one is the wrong rook pawn, i.e. the rook pawn that promotes on the square of the same color as the defending bishop. [23]