Your sparring partner answers with the moves real players choose, and every move you make gets a verdict straight away.
A line is waiting for you. Play what you would play in a real game; pick another line whenever you like.
One word from the engine (best, good, inaccuracy, mistake, blunder) and one sentence of context: how club players score with that move, or how it has gone in your own games.
Each practice ends with an accuracy and up to three stars. Practice again to improve it, keep your streak and earn your next belt.
Create your own lines, import your Lichess or Chess.com games, upload your repertoire as PGN, and connect Lichess to spar against live statistics at the rating you choose.
Choose the level of your sparring partner on your own lines: it plays moves from real Lichess games matching these criteria. It needs your Lichess account connected. The default lines come with their own statistics (club players, 1600-2000).
How it worksUpload your repertoire (a style from lichess or a pgn with your repertoire moves).
Every line starts from its key position. Your sparring partner answers with the moves club players really play there.
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5
Build the center with c3 and d4, or play slowly with d3. Your bishop eyes f7 all game long.
Play what you would play in a real game. Every move gets a verdict.
