King (chess)

Chess piece

The king (♔, ♚) is the most important piece in the game of chess. It may move to any adjacent square that is not controlled by an enemy piece; it may also perform, in tandem with the rook, a move called castling. If a player's king is threatened with capture, it is said to be in check, and the player must remove or evade the threat of capture immediately, such as by moving it away from the attacked square.

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