Game Review
Upload your game and the trainer shows, move by move, where the position crossed into unfamiliar territory - the exact spots your opening preparation ended.
A game is only as useful as the moment you stopped knowing what came next. The review lays every move on a single board and highlights the first move that left your known lines behind, so you can see at a glance where your opening study failed you.
It does this by matching your game against the lines in your repertoire. The positions that are already in your library light up as familiar, and the first unfamiliar move is the one to add to next week's practice.
Any signed-in account can review as many of their own games as they like. Each review uses your repertoire to separate the moves you should have known from the ones that were genuinely new, and it scores your recall on every line you trained.
Any unfamiliar line the review surfaced can be sent straight to the trainer as a new branch in your repertoire, so last night's loss becomes tomorrow's drill.
Stockfish, the same analysis you get in every chess program. The review is about finding your unfamiliar positions, not proving which move was best.
Games are stored only long enough to run the review. They are deleted once analysis is complete, and no game data is used to train any shared model.