Ladies and gentlemen, I'm proud to present to you... Su Doku!
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[cricket chirps]
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OK, so I'm one of about five Americans aware of Su Doku puzzles. It's pretty simple- you have a 9x9 grid with some of the numbers filled in. All you have to do is fill in every row, column, and 3x3 cell with all of the numbers 1 through 9. Sounds easy, doesn't require math skills (just logic); be warned, it's harder than it looks... well, at least on the Difficult and Fiendish ones. Once you get the hang of it, you'll likely find out what much of the world already knows- these things are crack in convenient pencil-and-paper format. The link is to the right.
