かちぬで始まる言葉

かちぬきせん【勝ち抜き戦】

an elimination tournament; a tournamentチェスの勝ち抜き戦a chess tournament

かちぬく【勝ち抜く】

彼は６人勝ち抜いたHe won six straight victories.／He stayed in the tournament by defeating six opponents in...