The rebels surrounded the president's palace. He had no option but to agree to their demands: it was checkmate.
Unless we make some serious changes to this business, the competition will catch up and it will be checkmate.
Garry Kasparov had the chess computer in checkmate after a fine series of moves.
Stalemate 「僵局」和 checkmate 的意思正好相反，stalemate 表示一種雙方僵持不下的局面。
I could only afford £150,000 for the house but the seller would go no lower than £155,000. We reached a stalemate and called the deal off.