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.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Help
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.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Keep Your Mind Fit And Flexible With A Creative Twist On Sudoku!Research Has Shown That A Great Way To Keep Your Memory And Cognitive Skills At Their Best Is To Learn Challenging New Things That Require You To Think. That Book Offers An Accessible Way To Do Just That, Since Almost Everyone Knows The Basics Of Solving Sudoku, But Its Variations Are Nearly Endless, And Just A Small Change In The Rules Can Make A Big Difference In The Solving Experience. This Book Features A Wide Variety Of Sudoku Variants (Like Clone Sudoku, EvenOdd Sudoku, Killer Sudoku, And Many More), Designed To Keep Solvers On Their Toes, But Presented Accessibly, With Easier Puzzles Leading Into More Complex Variations. A Freewheeling Final Chapter Combines Multiple Variations In Each Puzzle.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
For MAP (Minimum Advertised Price) violations and Intellectual Property (IP) or Trademark concerns, please contact:
support@ergodebooks.com
⚠️ 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.
