Coachess: Stop memorizing chess. Start understanding it.
© SORTINO LABS S.R.L.
A lesson, in progressStop memorizing.<br>Start understanding.<br>Watch Boris teach the London System, move by move, idea by idea. No videos. No filler. Just the patterns that win games.<br>♔♘
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The London System
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1. d4
01 · Your weakness, mappedImport your Chess.com or Lichess games. Get a weekly plan built from the patterns that actually hurt you.<br>Boris reads your last 30 games, finds the recurring mistakes, and turns them into a practice schedule. Vision drills for the squares you miss. Tactics for the patterns you blunder. Repertoire for the openings you struggle with. New plan every week.<br>Diagnose my games
gambit_gary<br>1640<br>rapid · Developing
14<br>Won
10<br>Lost
58%<br>Win
Boris's verdict<br>The Overextender<br>“You play with fire. Beautiful attacks when they land. Let's make them land more often.”
CRITICALCosting ~120 Elo<br>You hang pieces between moves 12–18<br>7 of your last 23 games lost material in the early middlegame. Mostly undefended knights and bishops after pawn trades open files.
Your weekly plan<br>3 lessons20 tacticsVision drill
02 · A grandmaster reviewing every game with youBoris doesn't just call out blunders. He teaches you through them.<br>Every mistake in your last game becomes a lesson. Boris explains why the move you played failed, what threat you missed, and what to look for next time. In plain language. No engine output to decode. No diagnostics jargon. Just a coach.<br>Analyze a game
4...Nxe4?? -3.0Reviewing
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Move 4. Nxe4 was played
03 · Daily training built around your weaknessesFive minutes. Sharper next game.<br>Vision drills and tactics, interleaved by Boris based on what your games actually showed. Not a generic puzzle queue.<br>Try a vision drillSolve a puzzle
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e4
Found0<br>Streak0
04 · Play when you're readyTest your strength against Boris.<br>Pick any opening, any game phase. Play. Boris rates every move and tells you your real playing strength.<br>Test your strength
PhaseOpening
Play as♔ White<br>♚ Black
OpeningThe London System<br>Italian Game<br>The London System<br>Ruy Lopez<br>Sicilian Defense
Play<br>Boris rates every move and estimates your playing strength.
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Your move<br>Middlegame
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Review<br>+1.2
Move Explorer<br>9.Ne5<br>Nxe5
10.Bxe5<br>g6
Inaccuracy — best was h6
11.h4<br>Bd7
12.h5<br>Nh7
Mistake — best was gxh5
13.Bxh7<br>Kxh7
Brilliant — best was Bxh7+
Your Rating<br>1742<br>Developing<br>ACPL 3824 movesDraw
Opening<br>1820
Middlegame<br>1710
Endgame
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“You found Ne5. The London's soul. But g6 needed h4 in reply.”
05 · Your daily practiceBoris is there every day.<br>Close your three virtues, Strategy, Tactics, Memory, and Boris writes the page. Seven days in, you have seven entries signed by your coach. That is not a streak counter. That is a relationship.
One week. Each piece earned. Da.<br>Good day.
06 · Free for everyone. No account needed to start.Build your opening repertoire. Then drill it cold.<br>Play your lines on the board, branch every reply, and annotate the ideas. Boris quizzes you on your own repertoire until the moves are automatic.<br>Open the trainer
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Your move<br>Drilling your tree<br>♝f5e5dxe4♞c3d5d4c6e4
Now drill it. Boris plays White, you recall your reply. Hints on.
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Your move.<br>Thirty seconds. A real finding on your real games. No signup.<br>Drop your username. We'll show you the patterns costing you rating.
Analyze my games for freeNo card. No signup until you want one.