Ideal mate
Encyclopedia
In chess
, an ideal mate is a checkmate
position that is a special form of model mate
. While in a model mate, each piece on the mating player's side (possibly excluding the king
and pawns
depending on context) participates in the mate, an ideal mate involves all the pieces of the mated player's as well, typically by blocking the mated king's field of movement so that it cannot escape. As in a model mate, an ideal mate also involves the mating pieces attacking the vacant squares around the mated king's exactly once, and not attacking the mated player's other pieces occupying the king's field of movement.
For example, in the second position at right, white delivers an ideal mate. The mate is delivered with the white rook, and the black king cannot stay or move to d4 or f4. The white king prevents the black king from escaping to d5 or f5 and prevents capture of the knight, while that knight
prevents escape to d3 and f3, and the black rook blocks escape to e3, while not being attacked by any of White's pieces.
The very restrictive definition of an ideal mate means that it rarely ends actual chess games, but ideal mates are a common theme in chess problems, like the one at right.
Chess
Chess is a two-player board game played on a chessboard, a square-checkered board with 64 squares arranged in an eight-by-eight grid. It is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments.Each player...
, an ideal mate is a checkmate
Checkmate
Checkmate is a situation in chess in which one player's king is threatened with capture and there is no way to meet that threat. Or, simply put, the king is under direct attack and cannot avoid being captured...
position that is a special form of model mate
Model mate
A model mate is a type of pure mate checkmating position in chess in which not only is the checkmated king and all vacant squares in its field attacked only once, and squares in the king's field occupied by friendly units are not also attacked by the mating side , but all units of the mating side A...
. While in a model mate, each piece on the mating player's side (possibly excluding the king
King (chess)
In chess, the king is the most important piece. The object of the game is to trap the opponent's king so that its escape is not possible . If a player's king is threatened with capture, it is said to be in check, and the player must remove the threat of capture on the next move. If this cannot be...
and pawns
Pawn (chess)
The pawn is the most numerous and weakest piece in the game of chess, historically representing infantry, or more particularly armed peasants or pikemen. Each player begins the game with eight pawns, one on each square of the rank immediately in front of the other pieces...
depending on context) participates in the mate, an ideal mate involves all the pieces of the mated player's as well, typically by blocking the mated king's field of movement so that it cannot escape. As in a model mate, an ideal mate also involves the mating pieces attacking the vacant squares around the mated king's exactly once, and not attacking the mated player's other pieces occupying the king's field of movement.
For example, in the second position at right, white delivers an ideal mate. The mate is delivered with the white rook, and the black king cannot stay or move to d4 or f4. The white king prevents the black king from escaping to d5 or f5 and prevents capture of the knight, while that knight
Knight (chess)
The knight is a piece in the game of chess, representing a knight . It is normally represented by a horse's head and neck. Each player starts with two knights, which begin on the row closest to the player, one square from the corner...
prevents escape to d3 and f3, and the black rook blocks escape to e3, while not being attacked by any of White's pieces.
The very restrictive definition of an ideal mate means that it rarely ends actual chess games, but ideal mates are a common theme in chess problems, like the one at right.