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If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
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All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
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The latest title in The Times Fiendish Su Doku series, this book previously unpublished quality Su Doku puzzles from the puzzle providers to The Times. Includes 180 Fiendish and 20 Super Fiendish puzzles. You don't need to be a mathematical genius to solve the treacherous puzzles in this collection of Fiendishly difficult puzzles, it's simply a question of logic. Perfect for the advanced solver in need of a constant supply of ultradifficult puzzles, and guaranteed to provide hours of mindstretching entertainment.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.