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If a player's king is placed in check and there is no legal move that player can make to escape check, then the king is said to be checkmated, the game ends, and that player loses. [22] Unlike the other pieces, the king is never captured. [23] The diagram shows an example checkmate position.
This is the move that Saavedra introduced. White threatens 7. Ra8+ and mate. Material is even, but the unfortunate positions of Black's king and rook doom him to a loss. 6... Ra4 7. Kb3. Black must either lose the rook (allowing White an elementary checkmate) or be checkmated by 8.Rc1. [3]
The two knights endgame is a chess endgame with a king and two knights versus a king. In contrast to a king and two bishops (on opposite-colored squares), or a bishop and a knight, a king and two knights cannot force checkmate against a lone king (however, the superior side can force stalemate [1] [2]).
The black king can be on any square on the edge of the board, the white king is in opposition to it, and the rook can check from any square on the rank or file (assuming that it cannot be captured). The second diagram shows a slightly different position where the kings are not in opposition but the defending king must be in a corner.
Black's king cannot move to squares under attack by the white bishop, knight, queen, or pawn. Since White is checking Black, and Black can neither move, capture the checking piece, nor block the check, Black is checkmated.
Mayet's mate involves the use of a rook attacking the black king supported by a bishop. It often comes about after the black king castles on its kingside in a fianchetto position. White usually arrives at this position after a series of sacrifices on the a-file or h-file. It is a type of Anderssen's mate and closely resembles the Opera mate.
The king is the most valuable piece—it is illegal to play any move that puts one's king under attack by an opponent piece. A move that attacks the king must be parried immediately; if this cannot be done, the game is lost. (See § Check and checkmate.) A rook can move any number of squares along a rank or file. A rook is involved in the king ...
Kc5 Ke7 8. Kd5 (The black king must now head for one of the two corners. Black opts to head for the h8-corner, where checkmate cannot be forced.) 8... Kf6 9. Kd6 Kf7 10. Ke5 Kg7 11. Ke6 Kg8 12. Ne5! (Centralizing the knight and preparing to force the black king out of the h8-corner.) 12... Kf8 13. Kf6 Kg8 14. Nf7! (Keeping the black king out of ...