Privacy policy

Draft, last updated October 2026.

What we collect

• Your account: email address and the sign-in method you use (email, Google, Apple, Lichess or Chess.com).
• Your chess data: games you play in NRV Chess, games you import from Lichess or Chess.com, the moves you make, and the evaluations and coaching notes generated for them.
• Linked chess usernames, and for Lichess an access token stored encrypted so we can import your games and opening data.

How we use it

Only to run the service: playing against the bot, analysing your moves, building your opening accuracy map and mistake catalog, and generating coaching explanations. We do not sell your data or use it for advertising.

Service providers

• Supabase (database and authentication)
• Google Cloud (chess engine analysis)
• Anthropic (writing coaching explanations from the engine's analysis of a position)
• Vercel (website hosting)

Deleting your data

You can delete your account and all of its data at any time from the account page in the app or on the website.

Contact

support@nrvchess.com