Support

On the old device, open Profile → Account and copy your recovery code (Show → Copy). On the new device open the app, tap “I have a recovery code” on the welcome screen, paste the code and tap “Restore account”. Your rating, progress and cosmetics all come with you.

Unfortunately we cannot restore your account. The server holds only an irreversible digest (SHA-256 hash) of the code — we cannot read or regenerate the code itself. Since we collect no email or phone number either, there is no other way to verify your identity. You will have to start with a new account — and save the code this time.

The game state lives on the server, so you resume exactly where you left off. But your clock keeps running — if it runs out, the game ends.

We use Glicko-2: the gain or loss depends not only on the result but also on how uncertain your rating and your opponent's rating are. New accounts have high volatility and move fast; the swings shrink as you play more games. Bot games never affect rating.

Send the opponent's username and the approximate date and time of the game. The system already flags repeated suspicious pairings automatically; your report speeds up the review. Fair play rules.

Send us: what you did, what you expected, what happened; device model and OS version; app version; and a screenshot if you have one. Reproducible steps are the fastest way for us to find it.

Send us the username. We change names containing insults, hate speech or misleading identities, or close the account.

In the app: Profile → Danger zone → Delete account. Full steps and the email route: Account deletion.

Android and iOS phones and tablets. The game runs against our server, so an internet connection is required — including for puzzles and bot games.