Printed in eye-catching full color, this is the Sudoku calendar that sets the standard with an engaging new puzzle—hand-designed by the masters at Nikoli, the Japanese publisher that launched the Sudoku craze—for every day. Each pits you against its creator and possesses a level of challenge, nuance, and elegance that computer-generated puzzles can't match. The calendar begins with the easiest puzzles each weekend, and offers progressively more difficult ones over the course of the week. For Sudoku lovers, it's a daily fix.

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Original Sudoku
The Original Sudoku Book 2 (Bk. 2)
More Original Sudoku (Bk. 3)