TheoryChess

Contact

Get in touch with questions, suggestions, bug reports and personal data requests.

Last updated: 30 September 2026

Write to us

For anything about TheoryChess, email [email protected]. Messages are usually answered within a few working days.

Reporting a bug

When reporting a bug, tell us which page you were on, which opening and variation you were studying, and what you expected to see compared with what you saw. A screenshot helps a lot.

Personal data requests

To download a copy of your data or delete your account, use the account settings page once signed in. To exercise your other rights under the KVKK or GDPR, write from the email address registered to your account. What the request should contain is explained in the KVKK Privacy Notice; requests are resolved within 30 days.

Operator

Hasan Süzen (an individual)
Email: [email protected]