This website, and all contents are the copyright of Astraware Limited. The puzzles, techniques, explanations, solutions, graphics and images, are for personal use and entertainment only, and are not for reproduction unless stated otherwise, or written permission is granted. Using any of the web site's puzzles directly by any site, publication, game, or other system is not permitted, unless with prior written permission.

You are welcome to link directly to any of the pages contained in this website. You are welcome to use our Bulletin Edition puzzles within your publication provided that it meets the criteria listed on that page.

If you do wish to use any of the contents of this site for any purpose, then we are often willing to find a way to make that happen for you in such a way that we retain clear copyright protection of our work. Please contact us to discuss!

While every effort is made to ensure that the Sudoku puzzles on this site are correct and valid, no guarantee is given that they are all correct and valid. The Sudoku on this site are all generated by Astraware’s proprietary generation code, and are not copied from any other source, however it is possible (albeit exceptionally unlikely) that a puzzle could be unintionally the same as from another source.

The Terms & Conditions within this document are governed by the laws of England and Wales. If for any reason a court of competent jurisdiction finds any provision, or portion thereof, to be unenforceable, the remainder of these Terms shall continue in full force and effect.

Sudoku Bundles For Your Publication

Astraware uses Paddle as our checkout partner and Merchant Of Record, and when purchasing a Sudoku Bundle you must agree to their Paddle Checkout Buyer Terms and Conditions.

Refund Policy

Before you purchase a Sudoku Bundle, please download the sample file to ensure that the product can meet your publication's requirements.

If you are unable to download a Bundle that you purchased, please contact Astraware Support who can help you to get the content you have purchased.

If you are not satisfied by your purchase, please contact Astraware Support within 30 days of your purchase to receive a refund. Refunds requested more than 30 days after your initial purchase date will not be issued unless the transaction was subject to a fraudulent purchase.

If you are issued a refund, it should appear on your credit card statement within 7 to 10 business days. Upon receiving a refund you shall cease all use and destroy all copies, full or partial, of the Bundle's zip file or its contained image files.

Sudoku Bundle Licence Agreement

Astraware (the licensor) grants you (the licensee) a non-exclusive right to use the contained Sudoku puzzle images under these Terms.

The sample file puzzles may only be used for development and evaluation purposes and must not be published.

The "Single Publication" licence allows you to publish the contained Sudoku puzzle images in a single named publication. The "Multiple Publication" licence allows you to publish the contained Sudoku puzzle images in any publications owned by your company or other entity.

You may not send, rent or lease a copy of the Sudoku puzzle images to anyone outside your company or entity. You may not transfer your rights under these terms unless we have agreed by email and the asignee agrees to these Terms.

Without prejudice to any other rights, We may terminate these Terms if you fail to comply with the terms and conditions of these Terms or other documents referred to herein. In such event, you must destroy all copies of the bundle and its contained files.

Privacy Policy

Astraware does not collect personally identifiable data on users who visit the Sudoku Of The Day site, but our partners may do so if you purchase a Sudoku Bundle or contact Astraware Support:

Paddle handles all data relating to the checkout and purchase of Sudoku Bundles. Paddle will maintain appropriate administrative, physical, and technical safeguards for protection of the security, confidentiality and integrity of Buyer data, as described in Paddle’s Privacy Policy.

If you contact Astraware Support, your data will be handled by our CRM partner, Freshworks, and any data you share with us will be subject to Freshworks' Privacy Policy.

If you play the Sudoku Of The Day app, please refer to Astraware's Privacy Policy.