Support

Email: [email protected] (or [email protected]). We answer within 3 business days.

Before writing, check:

Can't castle / rules question → https://ch960.com/chess960-castling and https://ch960.com/learn
Rating, arena or game problem → tell us the game link or position number (#0–959) and the time control
App crashes or freezes → tell us the app version (Settings → About), Android version and phone model
Anonymous statistics → turn off in Settings → “Anonymous statistics”; reset the install identifier there too
Data or account questions → see https://ch960.com/privacy; to request deletion of anything tied to your install identifier, email us the identifier from Settings