Privacy Policy

Last Updated: March 2026

Introduction

OpChess is an interactive chess exploration platform built to help players navigate the evolving landscape of chess positions, from well-studied openings to unexplored lines.

This Privacy Policy explains what information is collected, how it is used, and how it is protected when you use OpChess.

Your data is handled with intention. Nothing unnecessary. Nothing hidden.

By using the Service, you agree to the practices described below.

1. Information We Collect

A. Information You Provide

When you create an account, OpChess may collect:

Email address
Display name
Account preferences

OpChess does not request or collect sensitive personal information.

B. Automatically Collected Information

When you use the Service, certain information may be collected automatically, including:

IP address
Browser type
Device information
Pages visited
Usage patterns

This information is used to maintain performance, reliability, and security.

C. Cookies and Similar Technologies

OpChess uses cookies and similar technologies to:

Maintain secure login sessions
Improve functionality
Analyze usage patterns
Display advertisements

You can manage cookie preferences through your browser settings.

2. Advertising

To support the free version of OpChess, advertisements may be displayed through third-party advertising networks such as Google AdSense.

These providers may use cookies or similar technologies to:

Measure ad performance
Deliver relevant advertisements
Collect limited information about site visits

Google may use advertising cookies to serve ads based on prior visits to this and other websites.

You can opt out of personalized advertising here:

https://www.google.com/settings/ads

More information on how Google uses data:

https://policies.google.com/technologies/ads

OpChess does not sell personal information.

3. How Information Is Used

Collected information is used to:

Provide and maintain the Service
Authenticate users
Improve the user experience
Ensure platform stability and security
Support the free tier through advertising

4. Data Storage and Security

OpChess relies on established third-party infrastructure providers for hosting and data storage.

Reasonable technical and organizational measures are used to protect user information. No system guarantees absolute security, but the approach is deliberate and continuously improved.

5. Data Retention

Account information is retained while an account remains active.

You may request deletion of your account and associated data at any time.

6. Third-Party Services

OpChess depends on third-party services for hosting, authentication, analytics, and advertising. These providers operate under their own privacy policies.

7. Age Requirements

OpChess is intended for a general audience and is not designed for children under 13.

We do not knowingly collect personal information from children under 13. If you believe this has occurred, contact us and the information will be removed.

8. Changes to This Policy

This Privacy Policy may be updated to reflect changes in the Service or legal requirements.

Continued use of OpChess after updates means you accept the revised policy.

Contact

Questions regarding this Privacy Policy:

support@opchess.com