4944461
9780740764271
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The Sudoku Helper grid is specially designed to help eliminate possible answers, allowing you to work backwards to solve difficult puzzles. Sudoku Helper also keeps you organized. No more forgetting what you knew on the other side of the puzzle. It's quick, it's easy, and it really works! The book includes 160 perforated sheets, enough to get any level player over the hump and solving Sudoku like a genius.Cheek, David is the author of 'Sudoku Helper' with ISBN 9780740764271 and ISBN 0740764276.
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