Terms and Conditions

Last updated: 2 May 2026

Welcome to SudokuVault.world. These Terms and Conditions ("Terms") govern your use of the SudokuVault website and all its associated content and services. By accessing or using SudokuVault.world, you ("User" or "you") agree to be bound by these Terms, as well as our Privacy Policy and Disclaimer. If you do not agree to these Terms, you must not use our website.

1. Acceptance of Terms

By accessing, browsing, or using SudokuVault.world, you signify your unreserved acceptance of these Terms and Conditions. These Terms constitute a legally binding agreement between you and the owner of SudokuVault.world. Your continued use of the site after any changes to these Terms will signify your acceptance of those changes.

2. Description of Service

SudokuVault.world provides a free, browser-based online platform offering Sudoku puzzles in various difficulty levels (Normal, Intermediate, Difficult), a Daily Challenge feature, a hints system, and customisation options (dark/light themes). The site also features a blog containing Sudoku strategy guides and other related content. Additionally, users have the option to voluntarily subscribe to a free email newsletter, which may include a downloadable Starter Pack and other Sudoku-related content. All services are provided "as-is" and are intended for personal, non-commercial entertainment and informational use.

3. Intellectual Property

4. Acceptable Use

You agree to use SudokuVault.world only for lawful purposes and in a manner that does not infringe the rights of, restrict, or inhibit anyone else's use and enjoyment of the website. Prohibited behaviour includes:

• No Commercial Use: You may not use any part of the website for commercial purposes without our express written permission.
• No Reproduction or Scraping: You may not reproduce, duplicate, copy, sell, resell, or exploit any portion of the website, use of the website, or access to the website for any commercial purpose without express written permission from us. This includes, but is not limited to, web scraping, data mining, or any other automated means to extract data or content from the site.
• No Harmful Activities: You may not introduce viruses, trojans, worms, logic bombs, or other material that is malicious or technologically harmful. You must not attempt to gain unauthorised access to, interfere with, damage, or disrupt any parts of the website, the server on which the website is stored, or any server, computer, or database connected to the website.
• Respectful Conduct: You must not engage in any activity that could damage, disable, overburden, or impair the website or interfere with any other party's use of the website.

5. Email Subscription

SudokuVault offers a free email newsletter subscription. By voluntarily providing your email address and subscribing, you consent to receive emails from SudokuVault. These emails may include new puzzle announcements, strategy tips, updates about the website, special offers, and promotional content. We use MailerLite for our email newsletter service. You can unsubscribe from our mailing list at any time by clicking the "unsubscribe" link provided in every email or by contacting us directly. Your email address will be handled in accordance with our Privacy Policy.

6. Advertising

SudokuVault.world displays third-party advertisements served by Google AdSense and its partners. These advertisements are designed to generate revenue that supports the free operation of our website. We do not control the content of these advertisements, and the presence of an ad does not constitute an endorsement or recommendation by SudokuVault.world. Your interactions with any advertisers are solely between you and the advertiser.

7. Affiliate Links

Our blog posts and other content may contain affiliate links, primarily from the Amazon Associates program. This means that if you click on such a link and make a qualifying purchase, SudokuVault.world may earn a small commission from Amazon, at no extra cost to you. This helps fund the maintenance and development of our site.

8. Third-Party Services

SudokuVault.world utilises various third-party services to provide and enhance our offerings. These include:

• Google Firebase: For hosting, database management, and analytics.
• Google Analytics: For tracking anonymous website usage data to help us understand how users interact with our site and improve it.
• Google AdSense: For displaying advertisements.
• MailerLite: For managing and sending our email newsletters.
• Amazon Associates: For affiliate marketing links.

Your use of SudokuVault.world means you acknowledge and agree to the privacy practices and terms of service of these third-party providers. Please refer to their respective privacy policies for more information.

9. Disclaimer of Warranties

SudokuVault.world is provided on an "as is" and "as available" basis. We make no representations or warranties of any kind, express or implied, as to the operation of our website or the information, content, materials, or products included on the site. To the fullest extent permissible by applicable law, we disclaim all warranties, express or implied, including, but not limited to, implied warranties of merchantability and fitness for a particular purpose. We do not warrant that the website will be uninterrupted, error-free, or free of viruses or other harmful components.

10. Limitation of Liability

To the maximum extent permitted by applicable law, in no event shall the owner of SudokuVault.world be liable for any direct, indirect, incidental, special, consequential, or punitive damages, including without limitation, loss of profits, data, use, goodwill, or other intangible losses, resulting from (i) your access to or use of or inability to access or use the website; (ii) any conduct or content of any third party on the website; (iii) any content obtained from the website; and (iv) unauthorised access, use, or alteration of your transmissions or content, whether based on warranty, contract, tort (including negligence), or any other legal theory, whether or not we have been informed of the possibility of such damage, and even if a remedy set forth herein is found to have failed of its essential purpose.

11. Indemnification

You agree to indemnify, defend, and hold harmless the owner of SudokuVault.world and its affiliates, officers, directors, employees, agents, and licensors from and against any and all claims, liabilities, damages, losses, costs, expenses, or fees (including reasonable attorneys' fees) that such parties may incur as a result of or arising from your (or anyone using your account's) violation of these Terms and Conditions.

12. Privacy

Your use of SudokuVault.world is also governed by our Privacy Policy, which is incorporated into these Terms by this reference. Please review our Privacy Policy to understand our practices regarding the collection, use, and disclosure of your information.

13. Changes to Terms

We reserve the right to revise and update these Terms and Conditions from time to time in our sole discretion. All changes are effective immediately when we post them and apply to all access to and use of the website thereafter. Your continued use of the website following the posting of revised Terms and Conditions means that you accept and agree to the changes. You are expected to check this page frequently so you are aware of any changes, as they are binding on you.

14. Governing Law

These Terms and Conditions shall be governed by and construed in accordance with the laws of the Republic of South Africa, without regard to its conflict of law principles. You agree to submit to the exclusive jurisdiction of the courts located in South Africa for the resolution of any disputes.