Chess Jokes

I found a couple good jokes on the web. Enjoy:

Three retired International chess grandmasters were playing chess in the park.
The first grandmaster said, "it is windy today."
The second grandmaster said, "no, it is Thursday today".
The third grandmaster said, "me too, let's go back inside for a drink"

 Q. Which chess piece is the most powerful?
A. The Knight, It goes over the top.

"So I was having dinner with Garry Kasporov - Problem was, we had a checkered tablecloth and it took him two hours to pass the salt!"

In a park people come across a man playing chess against a dog. They are astonished and say:
"What a clever dog!"
But the man protests:
"No, no, he isn't that clever. I'm leading by three games to one!"

i liked the last one though in the middle one what pece did he think it was