Personalized chess training

Train on your
own mistakes,
not someone
else’s.

Your games already know what to work on.
Chesster turns the moves you missed into
practice that’s personal.

See my mistakes Try a sample

Explore the demo first. Connect your games when you’re ready.

Your real gamesYour own paceA clear next step

Your game.
Your lightbulb moment.

Today’s training

White to move · Move 41

From a real game
Missed forkEndgame

Find the
winning fork.

White played Ne5.
One better move attacks the king and the queen.

A sample from Chesster’s demo games.

Your gameYour puzzleYour pattern

Same position. A better idea. ↗

Your games, your starting pointStraight from chess.com

A second look at every moveAnalyzed with Stockfish

Practice with a purposeBuilt around the moments you missed

A smarter place to start

The best place
to improve?
Your last game.

A missed fork. An undefended piece. A familiar mistake. Your games tell us what to practice next.

A puzzle collection

A world of positions to solve.

  • A position you haven’t played
  • A lesson without your context
  • Another puzzle in the queue
Chesster

A plan from your games

A familiar position. A fresh chance.

  • The move you actually missed
  • The pattern behind your mistake
  • Something to use in your next game

Less guessing. More growing.

A little practice.
A better next game.

You don’t need to study everything.
Start with what your games are telling you.

Missed forksHanging pieces
01 / NOTICE

Spot your blind spots.

Find the mistakes that keep showing up, grouped into patterns you can work on.

Discover your patterns
From your gameYour move. Your moment.
02 / PRACTICE

Give that move another go.

Replay the positions you got wrong. Find the better move and make the idea stick.

Try the puzzle trainer
See the bigger pictureOne game at a time
03 / UNDERSTAND

Know what to work on.

See where mistakes happen across openings and game phases, so practice has a direction.

See your patterns

From your games to your next step

You play. We find the moments
worth coming back to.

  1. 1

    Bring your games.

    Connect your chess.com username. Your game history is the starting point.

  2. 2

    Find your moments.

    Stockfish checks the moves. Chesster groups the mistakes by the ideas you missed.

  3. 3

    Make your next move.

    Practice those positions, recognize the patterns, and take the ideas into your next game.

Same games. A smarter you.

Your next win starts
with your last mistake.

Let’s turn “I should have seen that” into “I’ve got this.”

See my mistakes Just looking? Explore the demo →