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| Author: | Yoshimitsu Kanai |
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The puzzle was popularized in 1986 by the Japanese puzzle company Nikoli, under the name Sudoku, meaning single number. It became an international hit in 2005.
— Wikipedia on Sudoku
(v1.1.3)
Compatibility
Comments
I've been playing this game since I was about 11. The "book" levels can get pretty challenging, especially since there's no in-cell notation; I have color-based grid that I use to solve the trickier ones that started out as a ClarisWorks file! There's an OS X version available at http://www.mathsisfun.net/puzzles.htm .