Ultimate Sudoku

Ultimate Sudoku Magazine (Digital)

Cover price: $8.97
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About Ultimate Sudoku

Each book has 100 puzzles Did you know? The smallest number of clues in a normal Sudoku puzzle is 17. But the best mathematical minds can’t tell us why. It's been proved that no Sudoku puzzle can have 16 or fewer clues and still have only one solution - but proved only by exhaustive computer searches, not math or logic


The number of issues included in a magazine subscription (frequency) is subject to change without notice. Additional double issues may be published, which count as 2 issues. Applicable sales tax will be added. Offer void in Vermont. Magazine covers are used for illustrative purposes only and you may not receive a copy of the particular issue depicted. Your subscription will include the most recent issue once your subscription begins. Magazine covers are the property of the publisher. This site is not officially affiliated with, associated with, or endorsed by Ultimate Sudoku or the publisher.