Support
We usually reply within two business days. When you email us, please include your username and a short description of what you were trying to do — screenshots help.
Contact
Common questions
How do I delete my account? In the iOS app: Profile → Radera konto (Delete account) and confirm. From the web: email us from the address linked to your account and we’ll remove your username, email, hashed password, and associated attempts and rating history.
How is rating computed? We use Glicko-2. New players start at 700 with a high deviation, which drops as you play ranked matches and daily problems.
Something is broken. Email us the time (with timezone), your username, and a short description.
See also
Privacy Policy · Terms of Service · Help centre (sign-in required)