Recently a “Sudoku Shopping Center” opened in Timbuctu, where Sudoku addicts could go to choose a puzzle from among many. It was laid out in five floors, with the puzzles increasing in difficulty levels as you ascended. The only rule was, once you opened the door to any floor, you HAD to choose a puzzle from that floor; if you went up a floor, you couldn’t go back down except to leave the place, never to return.
A couple of women Sudoku addicts went to the shopping center to find some puzzles…
First floor. The door had a sign saying, “These puzzles are for kids.”
The women read the sign and said, “Well, that’s better than not having any puzzle, but I wonder what’s further up?” So up they went.
Second floor. The sign read, “These puzzles are especially devised for senior citizens.” Hmmm, said the ladies. But, I wonder what’s further up?
Third floor. This sign read, “These puzzles are very challenging and would need a good player to try to solve them.” Wow! said the women. Very tempting, BUT, there’s more further up! And up they went.
Fourth floor. This door had a sign saying: “These puzzles are EVIL and almost impossible to solve without help. If you can solve them you are a certified genius.”
“Oh, mercy me. But just think! What must be awaiting us further on!”
So up to the fifth floor they went.
Fifth floor. The sign on that door said, “This floor is empty and exists only to prove that women are impossible to please!”