Last updated: August 2026
One Chess is designed to be a clean, distraction-free environment. We do not require you to create an account, and we do not collect personal identifying information (such as your name, address, or phone number) to play the game.
We may collect standard, anonymous web traffic data (such as browser type, operating system, and IP address) for analytical purposes and to improve the quality of our service.
We use local storage in your browser to save your game preferences (such as engine difficulty and board theme). This data never leaves your device.
Third-party vendors, including Google, use cookies to serve ads based on your prior visits to our website or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our sites and/or other sites on the Internet.
We use Cloudflare for hosting and security, which may process network data as per their privacy policy. We also use Google AdSense to display advertisements. These third-party services have their own privacy policies.
If you have any questions or concerns about this Privacy Policy, please contact us at contact@justonechess.com.