Learn about how we use cookies and similar technologies on 9sudoku.com
Last Updated: December 2024
Cookies are small text files that are stored on your device when you visit a website. They help websites remember information about your visit, making your next visit easier and the site more useful to you.
Cookies cannot harm your device or files. They are simply small pieces of data that help improve your browsing experience.
At 9sudoku.com, we use cookies for the following purposes:
| Cookie Type | Purpose | Duration | Essential |
|---|---|---|---|
| Game State | Save your current puzzle progress | Until browser is closed | Yes |
| Preferences | Remember timer/counter settings | 30 days | No |
| Difficulty Level | Remember your preferred difficulty | 30 days | No |
| Analytics | Understand usage patterns | 90 days | No |
| Advertising (Google AdSense) | Show relevant advertisements | Varies | No |
We may use Google AdSense to display advertisements on our website. Google AdSense uses cookies to:
You can learn more about Google's cookie usage in their Privacy Policy.
We may use analytics services that place cookies to help us understand:
In addition to cookies, we use browser local storage to:
Local storage data stays on your device and is not transmitted to our servers. It provides a better gaming experience by ensuring your progress isn't lost.
While you can disable cookies, doing so may affect your experience on 9sudoku.com:
Essential cookies required for basic game functionality cannot be disabled while using the service.
We may update this Cookie Policy from time to time to reflect changes in our practices or legal requirements. When we make changes, we will:
If you have any questions about our use of cookies or this Cookie Policy, please contact us:
For more information about how we protect your privacy, please also review:
We're committed to transparency about our cookie usage. If you have any questions or concerns, we're here to help.
Contact Us →