checkmate
Definition
A position in chess where the king is under threat of capture and cannot escape, ending the game; also used figuratively to mean a decisive victory.
日本語 王を捕らえる危険にさらされ、逃げられないポジションでゲームが終了する; 決定的な勝利を意味する
Example
"With one brilliant move, she delivered checkmate and won the championship."