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In chess, a perpetual check occurs when a player can repeatedly put the opponent's king in check, forcing a draw. This situation arises when a player has no legal moves to escape an endless series of checks. A game of chess can end in a win, loss, or a draw. Draws can happen through mutual agreement, insufficient material to checkmate, stalemate, repetition of position, or the 50-move rule. Perpetual check is one of the ways a draw can be achieved.12

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