Privacy Policy

What we collect

Your account details, the games and puzzles you play, and the conversations you choose to have with the AI. We do not run third-party analytics and never sell your data.

Statistics about your games

From the games and puzzles you play on Bright Moves, and the games you import from lichess or chess.com, we work out statistics about your own play: your ratings and how they change, how often you play, your streaks, the openings you choose, your puzzle results, and how you use your clock. This is part of the service you signed up for. Your statistics page is visible only to you. It also shows where some of your numbers sit among other Bright Moves players, always with how many players that is, and where your lichess rating sits among lichess players, using the figures lichess publishes. Nobody else sees where you sit.

To work out those comparisons, we count players' numbers without their names: each count says only how many players have a number in a range. Your numbers are counted the same way for other players, but only from the games and puzzles you play on Bright Moves. Games you import from lichess or chess.com, or paste in, are used only for your own statistics and never count in anyone else's comparison. We do this because comparisons are part of what the statistics page offers everyone. You can ask us to leave your numbers out of the counts by writing to us at brightmoves648 at gmail.com.

You can show us that a lichess or chess.com account is yours. For lichess, you sign in to lichess from Bright Moves, and lichess tells us that account's id and username. For chess.com, we give you a short code to put in the location field of your chess.com profile; when you press Check, we read that profile once from chess.com and keep only the account's id and username. You can remove the code as soon as the check is done. We keep the id and username to mark the account as yours, until you unlink it or delete your account. Your imported games still count only in your own statistics.

Accuracy. Our chess engine checks the positions of your finished games on Bright Moves and of the games you import, on its own after each game or import, newest games first. From those checks we work out your accuracy: our engine's estimate of how well your moves kept your position. It covers only your own moves; we never work out your opponent's for you. We show it only to you, in your game reviews and on your statistics page: not to your opponent or any other player, not to a linked parent or guardian, and not to our AI. The accuracy saved for a game's review is kept until the game is deleted or your account is deleted; the accuracy on your statistics page is worked out each time you open it and is not saved. The engine's checks of a game are deleted when the game is deleted — a game played here is deleted when either player deletes their account, and an imported game when you delete it or your account.

If you are 18 or older and ask the chess AI about your own play, it can show you a summary of your own ratings, recent activity and clock statistics. It looks them up only when you ask, and only yours. The summary is shown to you; it is not sent to the AI service. For anyone under 18, or whose age we do not know, the chess AI does not look up any statistics.

We keep your statistics while your account exists. Rating history older than 90 days is kept as one reading per day. All of it is deleted when your account is deleted.

Children

You must be 13 or older to create your own Bright Moves account. We ask for your birth month and year to check that. If you are 18 or over, we keep only that you are an adult. If you are 13 to 17, we also keep the month you turn 18, so your account changes on time. That month tells us your birth month and year, so we keep it only until it comes, then remove it. We never store your full date of birth.

We treat every account under 18 as a minor account, and where we cannot tell, we treat the account as a minor. These protections stand on their own and do not depend on a parent taking part: we do not show minors on public pages or in player search, there is no in-game chat or messaging between players, and a minor never pays — a guardian approves and pays for any coaching.

Guardian linking is still in closed-beta testing. Its identity and payment-card checks are simulated rather than real, and we do not yet confirm that an adult is a given child’s parent or guardian — so a guardian link today is not a verified one. We will update this page when those checks are real.

Safety notes

If something you send to the chess AI sounds like you might be in danger or being hurt, the chess AI does not answer it. It shows you where to get help, and we keep a short safety note.

The note records that this happened and when, which account, conversation and app it came from, and whether the account is an under-18 account. It never contains what you wrote. The Bright Moves team can look at these notes. We keep them to protect people who may be at risk.

We keep each note for one year and then delete it. If you delete your account, your safety notes are still kept until they are a year old.

We do not keep a note when the safety check removes an email address, phone number or street address from a message, or when it turns down a message that tries to change how the chess AI behaves. We only count how often those happen, with nothing that identifies you.

Your rights

You can download everything we hold about you, correct it, or delete your account after a 30-day grace period — all from Settings.

Do Not Sell or Share

We do not sell or share personal information. This control is provided to honour CCPA requirements regardless.