Privacy Policy

This Privacy Policy explains what information Grandmaster Chess Online ("we", "us", "the Site") collects, how it is used, and the choices you have. By using grandmasterchess.in, you agree to the practices described here.

1. Information we collect

Playing without an account. You can play every game mode on this Site without creating an account. In this case, we do not collect any personal information about you — gameplay data stays only in your browser session.

Creating an account. If you choose to sign up, we collect your email address and authentication details via our backend provider, Supabase. We also store gameplay-related data tied to your account: rating, win/loss/draw record, and game history, so this information can sync across your devices.

Automatically collected data. Like most websites, our hosting provider (Vercel) may automatically log standard technical information such as IP address, browser type, device type, and pages visited, for security and performance purposes.

2. Cookies and similar technologies

We use essential cookies/local storage to keep you signed in and to remember basic preferences (such as board theme).

If this Site displays advertising, third-party vendors, including Google, may use cookies to serve ads based on your prior visits to this or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the Internet. You may opt out of personalized advertising by visiting Google Ads Settings.

3. How we use your information

• To provide and maintain core gameplay functionality
• To sync your rating, stats, and game history across devices if you have an account
• To respond to support requests sent to us directly
• To monitor and improve Site performance and security
• To display advertising, where applicable, in accordance with this policy

4. Third-party services

We rely on the following third-party services to operate this Site:

• Supabase — authentication and database storage for account holders
• Vercel — website hosting and infrastructure
• Google AdSense (where enabled) — advertising, subject to Google's own privacy policy

Each of these providers has its own privacy practices governing the data they process on our behalf.

5. Data retention

If you have an account, we retain your account data for as long as your account remains active. You may request deletion of your account and associated data at any time by contacting us at the email below.

6. Your rights

Depending on your location, you may have rights to access, correct, or delete your personal data, and to object to or restrict certain processing. To exercise any of these rights, contact us using the details below.

7. Children's privacy

This Site is not directed at children under 13, and we do not knowingly collect personal information from children under 13.

8. Changes to this policy

We may update this Privacy Policy from time to time. Material changes will be reflected by updating the "Last updated" date at the top of this page.

9. Contact us

Questions about this Privacy Policy can be sent to abhi15724@gmail.com.