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23 points
CHECKMATES is validvalid
CHECKMATE, to attack a chess king in a way that cannot be countered [v]
CHECKMATE, in chess, to put (a player's king) in checkmate; to defeat or render incapable of counterattack [v]
CHECKMATE, to attack a chess king in a way that cannot be countered [v]
CHECKMATE, in chess, to put (a player's king) in checkmate; to defeat or render incapable of counterattack [v]