Help and privacy
How to import, review, practise and keep your games.
Get started
- Paste a PGN, upload a .pgn file, or import a game from Lichess or Chess.com.
- Run local analysis and read the report for the result, accuracies and key moments.
- Start guided review, explore a temporary alternative, or retry a mistake in practice.
Where is my data?
Imported games and completed reviews are kept automatically in this browser. Browser storage has limited capacity and can be cleared by your browser or device settings.
Signing in does not upload device games. Use Save to account on a game when you want an account copy. Account saves are explicit; changes on separate devices are not continuously synchronized.
Explore lines disappear when you leave them. Mistake-practice due dates and results are saved only on this device, separated by the current account or guest profile.
Analysis and coaching
Stockfish analysis runs locally in your browser. Its evaluations and grades are estimates based on bounded searches; they may differ from other chess sites.
Basic coaching can run locally. Optional coach explanations may contact the app server and, when configured, a remote provider. Turn on Local-only coaching in Settings to avoid those coach requests.
Need help?
Contact support@chessvi.com. Include the game source, what you tried and any error message; omit private game details unless you choose to share them.