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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
Built slim enough and small enough to fit in a pocket, The Sudoku Planet contains puzzles arranged by five levels of difficulty. This virtually weightless adjunct to any trip requires only a pencil and an agile mind then it's time for the fun to begin. Players must add numbers to a 9 x 9 grid, being careful not to repeat digits in any single row or column. Out of this remarkably simple premise comes a fiendishly difficult game, one that keeps minds occupied well after the destination has been reached.
⚠️ 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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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.