Deadlock as board move out? (9)
I believe the answer is:
stalemate
'deadlock' is the definition.
(I know that deadlock can be written as stalemate)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for stalemate that I've seen before include "A no-win situation in chess" , "Deadlock, impasse" , "Possible chess game ending" , "Deadlocked position" , "situation without a winner" .)