OK, so a knight and a bishop walk into a bar

A tiny chessboard walks into the bar. The knight and the bishop ask if he'd be up for a game. So...they all give it a go. The bar patrons set up the large pieces on  the tiny board and are moving the bishop and knight around to study how they best work together. The tiny board realizes that things just aren't quite working out. The pieces are too big for the squares. He's really not feeling it and so he calls out "Look, I'm just a little bored (board). I think I'm going to call it quits and head home."

See, this is funny because it is a play on the similar pronunciations of board and bored.

A Knight walked into a bar.

"Ouch!" he said.

It was an iron bar.

The noob did not walk into the bar because it was over his head.

So... 

A Knight, a Bishop and a Rook walked into a bar and the Bartender said, "Is this a joke?"

im board

 And the rook said, "No this is a meta-joke, i.e. a joke that references an entire genre of jokes."

 see if you can get some action going with a pawn sacrifice.

 Don't play the Swiss Defense. It's full of holes.

That one is ACTUALLYｆｕｎｎｙ！

A group of chess enthusiasts had checked into a hotel, and were standing in the lobby discussing their recent tournament victories. After about an hour, the manager came out of the office and asked them to disperse.
"But why?" they asked, as they moved off.
"Because," he said, "I can't stand chess nuts boasting in an open foyer."

ｉ＇ｖｅ　ｈｅａｒｄ　ｔｈａｔ　ｏｎｅ　ａ　ｔｈｏｕｓａｎｄ　ｔｉｍｅｓ．．．

 ohh god.

ok, that was bad!

a housewife was at the pawnshop but she forgot her checklist. She remembered her Australian friend who had been crushed by a boulder in the Outback...a smothered mate.

Garry Kasparov started painting years ago. Art scholars have labeled the 1990's as his Deep Blue Period.

ow guys, my funny bone hurts.

I tried to play the French Defense put my pawns can't retreat.

ouch

Some of these jokes are hilarious, well done!

This gets my vote for best so far.