Checkmate
Checkmate, or mate, ends a chess game at once: the king of the side to move is under attack, and none of that side's legal moves can remove the attack, so the player who delivered it wins.
Also called: mate
The Laws of Chess put mate at the center of the game: each player's objective is to attack the opposing king so that the opponent has no legal move left. Once that position appears on the board the game is over and the mating side has won; nothing more is played.
To confirm a mate, test the three ways out of any check. The king has no safe square to step to, the checking piece cannot be captured, and nothing can be put in the way. Only when all three fail is it mate.
Most mates follow familiar shapes. In a back-rank mate the king is shut in by its own pawns; in a smothered mate a knight checks a king hemmed in by its own pieces; in a ladder mate two heavy pieces drive a king to the edge one rank at a time. Learning these patterns makes them visible in your own games.
A position in which the side to move is not in check but has no legal move is something else, a stalemate, and it is a draw. In winning endgames, check that your quiet move still leaves the opponent a legal reply.
Learn the basic mates in order: king and queen, king and rook, then two bishops, and later bishop and knight.
Tip: in a mating attack, look for checks that take away the last free squares around the king.
Compare it with Arabian mate. An Arabian mate is a corner checkmate where a rook gives the check from beside the king, and a knight, a jump away from the rook, guards it and covers the one flight square the rook leaves open.
Also worth reading is Boden's mate. Boden's mate is a checkmate in which two bishops attack along diagonals that cross, one giving check and the other cutting off flight squares, while the king's own pieces block the rest.
A neighboring idea is Check. Check is the state of a king that stands attacked by one or more opposing pieces; the player whose king it is must end the attack with the very next move, because no legal move may leave one's own king attacked.
Knowing "Checkmate" is the easy part; what to practice next depends on your rating, and the improvement plans by rating band list the habits worth building at each level.
Related terms
Check is the state of a king that stands attacked by one or more opposing pieces; the player whose king it is must end the attack with the very next move, because no legal move may leave one's own king attacked.
Stalemate is a draw that occurs when the side on move has no legal move at all while its king is not attacked, so the game ends on the spot with half a point to each player.
A back rank mate is a checkmate on a player's first or eighth rank, typically by a rook or queen, delivered when the king's own pawns leave it no square to step to.
A smothered mate is a knight checkmate against a king hemmed in by its own men: every square the king could use holds its own pieces, and a knight check cannot be blocked.
King and queen checkmate is the basic ending in which a king and queen force mate against a lone king, using the queen to confine it and the king to help deliver the final check.
A mating attack is a sustained assault on the enemy king, usually built from several pieces and often with sacrifices, whose aim is checkmate rather than winning material.
Guides that go further
What to decide first, the questions to ask, what a first lesson should show and the red flags to avoid.
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A game review, a read on your level and a written study plan from George Li.
Sources
- FIDE Laws of Chess (taking effect from 1 January 2023), Articles 1.4 and 1.4.1, read Oct 21, 2026.
- FIDE Laws of Chess (taking effect from 1 January 2023), Article 5.1.1, read Oct 21, 2026.
Want to spot this in your own games?
A first lesson starts with your games: George reviews them and builds a study plan around what he finds.