perpetual check

perpetual check Word Origin noun Chess.

1. a continuing series of checks resulting in a drawn game because they cannot be halted or evaded without resulting in checkmate or a serious disadvantage.
2. the situation in which this occurs.

Origin of perpetual check First recorded in 1810–20 British Dictionary definitions for perpetual check perpetual check noun

1. chess a consecutive series of checks that the checked player cannot avoid, leading to a drawn game