This might be a mating puzzle, or a grab at material gain or ???
Black to play. How should
Black proceed?
Solution:
click to show
1...Rxg2+ -Black is about to be mated but this move gets him a draw! (If the White King or Bishop capture the Black Rook then Black is
stalemated. If the White King tries to "run away" the Black Rook can
keep checking and get a draw by "threefold repetition".