Practice positions
The curriculum is a set of positions from real games between players at each level, sorted by concept and checked with Stockfish. Many come right before a real mistake. Your level comes from your rating range below.
Changing your range picks a sensible set of imbalances and where in the game positions come from. Below 1200, positions come from the opening or from endgames with few pieces left, so the pieces are easy to count. The lower the range, the fewer pieces.
Pick up to two things you want to get better at. Your coaching sessions add practice for them alongside what your games show. Every tool stays open either way.
Light or dark
After you upload a new version, run this on your device: it checks the version, the offline copy, Stockfish, your saved data and the main screens.
Games you upload or import, and their reviews, are stored on this device only. If you sign in with Google, they're also copied to your private account so your devices stay in sync. Deleting a game removes it from this device and from your account. Nothing is shared publicly.
Delete games in the Coach's Database.
Your accuracy for each imbalance, shown at the end of every coaching session.
Your progress is saved on this device automatically. To move it between the online version and the offline file (or to another phone), copy a backup code here and restore it there.
Each position only asks about the ones that matter in that phase of the game: development in the opening, outposts once the middlegame starts, and so on.
Use Delete games… above to remove some, or remove all of them here.