After the other side looked at it, he said, "Three steps are not good. I looked at it. It takes at least five steps to do it."

"Ha ha ha, unexpectedly Mr. so interested, then, give you five steps, if five steps you can crack this chess, I will give you five or two silver as well." The banker said confidently.

As a matter of fact, he knows only one solution to this chess game, and it takes only three steps to get it done. His opponent actually says five steps. The same chess-loving player will let the opponent have a try.

After taking three steps, Mr. Na shook his...