Forced mate

Can you think of any position in chess where you are forced to give checkmate to your opponent?

This is an example : lichess.org/editor/k7/5Q2/B7/8/8/8/2qr4/K7_w_-_-

White to play and if white does not give checkmate to black,then black does! (At least i think so)

Sure. Check, counter-check and you have to mate him in order to-parry the counter-check.

But if you time-out it‘s a draw for either side. There‘s no auto-execution.

@risky-chess , in your example the player isn't forced to give a check . There are many legal moves that allow mate next move and Qb3 that delays mate even more.
If @hermesv 's example were to occur in a lichess game, White would lose if they run out of time.

I created new example similar to hermesv's one: lichess.org/editor/kb6/8/KP6/1R6/2q5/nn6/8/8_w_-_-

White to move and b7 wins.Rook and king cannot move.

Can there be more than one legal moves but mate forced. It doesn't even have to be mate in just one move. Can be more.

One move, but only six pieces:
lichess.org/analysis/standard/kb6/8/KP6/PP6/8/8/8/8_w_-_-

Ok, a bit cheap...

Nice @Sarg0n, everything is absolutely forced there!