Is this a pun?

[packman]

[sarge43]

1. Yup. Check, mate! n/t

[Orrex]

2. Stalemate?

[Volstagg]

3. Is there a name for a pun that doesn't work?

There should be something funny.

"Close but no cigarette"?

[Orrex]

4. Most of my puns don't work, largely because there should be something funny.

"Close but no cigarette" is pretty clever, though.

[Volstagg]

5. Thanks

Puns are hard; that's for sure.

I just meant a name for an attempted pun that isn't. Like the picture. Clearly they want "check, mate" but the picture shows stalemate, as you point out.

[Orrex]

6. It's like the guy who married a loaf of bread,

And a week later he discovered that he had a stalemate.

[FSogol]

12. Hey, get a loaf of this guy. He got pawned.

[denbot]

7. The most humiliating of the mates..

Congratulations, you just maneuvered into a draw, from a position of strength.
My wife and I occasionally play, and I would rather loose then screwup and be outplayed by stumbling into a stalemate.

[trof]

8. loose

jeez

[denbot]

9. Yeah, kinda surprised my brain coughed that up..

Ever more surprised I'm kicking a mental hair ball.

[trof]

10. #shithappens

[SwissTony]

11. King plus knight vs king is a draw

But that looks like a queen being moved.