The chess improvement school

You know how the pieces move.
Now learn to win.

A placement test finds your level, then 70 interactive lessons, targeted drills, and sparring bots take you the rest of the way. Homework is built from the mistakes you actually make.

70interactive lessons
5,200+rated puzzles
5sparring bots
Free & unlimited

Analyze any game

Paste a PGN from Chess.com, Lichess, or a scoresheet and get full Stockfish analysis — accuracy score, every blunder, and the better move — with no per-day limit and no account.

Analyze a game →

The curriculum

Start learning

How it works

  1. 1

    Place

    Ten adaptive positions set your Knight Score and map your nine skills.

  2. 2

    Practice

    Lessons, drills, and the Calculation Gym target your weakest skill first.

  3. 3

    Play

    Spar the bot ladder, then review every game so mistakes become homework.

Play the ladder

Five personas from Pawn Pete around 450 to Queen Quinn around 1000. Each comes with a scouting report on how to beat it.

Choose an opponent

Learn the openings

14 essential openings, each playable on a live board. Step through the mainline, then play it back from memory while the opponent replies.

Open the library

Train the weak spots

Rated puzzles at your level, skill drills, and the candidate-move discipline of the Calculation Gym. Every rep updates your mastery.

Open training

Free guides