Under check的意思

"Under check" is a term primarily used in chess to describe the situation when a player's king is under threat of capture. In chess, a king is in check when an opposing piece threatens to capture it on the next move. When a king is under check, the player whose king is threatened must make a move to get out of check. This can be done by capturing the checking piece, moving the king to a safe square, or, if possible, blocking the check with another piece.

The phrase "under check" is not commonly used in everyday language, but it is a standard term in chess and related games.