A good chess player

A man went to visit a friend and was amazed to find him playing chess with his dog.
He watched the game in astonishment for a while. "I can hardly believe my eyes!" he exclaimed. "That's the smartest dog I've ever seen."

"Nah, he's not so smart," the friend replied. "I've beaten him three games out of five."

Dexter comment: Now I know how not smart it is.