Cookies
1. What are cookies?
Cookies are small text files stored on your device. They help operate the website and provide essential features such as security and session management.
2. Which cookies we use
2.1 Strictly necessary cookies (always active)
session
Purpose: Stores your session (e.g., language and difficulty selection).
Retention: Up to 1 hour.
csrf_token
Purpose: Security token to protect forms and requests against CSRF attacks.
Retention: Session.
2.2 Analytics cookies
We do not set analytics cookies by default.
3. Managing cookies
You can manage cookies in your browser settings:
- Chrome: Settings → Privacy and security → Cookies
- Firefox: Settings → Privacy & Security → Cookies
- Safari: Settings → Privacy → Cookies
4. More information
You can find detailed information about data processing in our privacy policy. Read the Privacy Policy
Last updated: March 19, 2026