Find out exactly why you’re stuck at your rating.
RookMentor is a free chess improvement coach that analyzes your Lichess or Chess.com games to find your recurring leaks, with an optional $6/month Pro plan.
Type your chess.com or Lichess username. In under a minute, RookMentor reads your recent games and shows your top 3 rating leaks — with what to do about each one.
Read-only. We never touch your account — just your public game archive.
No account on either site? See a live sample report → (Hikaru Nakamura, chess.com)
What a lesson looks like
Develop knights before the queen
Qf6 brings your strongest piece out where knights and pawns can chase it — every attack on the queen develops White’s pieces for free. Nf6 does the same job of guarding e5 while developing a piece that wants to be attacked less, keeps your queen safe at home, and gets you a move closer to castling.
Habit · Before moving your queen in the opening, count your undeveloped minor pieces — if it’s more than one, move one of them instead.
What a fingerprint looks like
- clock
23% of your losses are on time — the clock beats you before your opponents do.
- openings
You score 31% against the London System over 12 games as Black.
- tilt
In games started right after a loss you score 38% vs 52% normally.
Which one are you?
Every fingerprint comes with a chess personality, computed from how you actually play — and a share card to prove it.
Playing someone soon?
Scout any player before the game: their worst openings, clock habits, and tilt pattern — turned into your gameplan. All from public games.
Puzzle apps drill everyone the same. Engine analysis shows lines without reasons. Videos can’t see your games. RookMentor starts from the only data that matters — what actually happens in your games — and tells you the one thing to fix next.