self-mate

[ self-meyt ]
/ ˈsɛlfˌmeɪt /

noun Chess.

a move that will cause a player's king to be mated within a certain number of subsequent moves.

Origin of self-mate

First recorded in 1885–90
Also called suimate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019