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Chess, reinforced.

Interactive lessons, real Lichess puzzles with spaced repetition, an adjustable Stockfish opponent, and move-by-move game reviews — no account required.

  • 65+ interactive lessons
  • Real Lichess puzzles
  • Stockfish · 800–2500 ELO

Everything you need to improve

Learn a concept, drill it with puzzles, test it against the engine, then review the game to see what stuck.

Interactive Lessons

13 modules and 65+ lessons from piece movement to advanced endgames — with live boards you play on, not just read.

Browse the modules

Real Lichess Puzzles

A daily puzzle plus unlimited practice from the open Lichess puzzle database, matched to your rating — and a 5-minute Puzzle Rush mode.

Solve today’s puzzle

Spaced Repetition

Puzzles you miss come back for review right when you’re about to forget them, so weak spots actually get fixed.

Open your review queue

Play Stockfish

An adjustable opponent from 800 to 2500 ELO, with on-demand hints — and a built-in fallback engine so the computer always replies.

Start a game

Game Review

Move-by-move accuracy with blunders flagged, an eval graph, and “train your mistakes” puzzles built from your own games.

Review your games

Famous Games

Step through classics like Morphy’s Opera Game and Fischer’s Game of the Century, move by move.

Replay the classics

Analysis Board

Set up any position by hand or paste a FEN, then ask the engine for the best move, its evaluation, and the line that follows.

Open the analysis board

Coordinates Trainer

A 30-second drill: find the called square on an empty board, from either side’s perspective. Your best score is kept.

Take the 30-second drill

A structured path, start to finish

Thirteen modules take you from your first pawn push to advanced strategy, with progress tracked lesson by lesson.

♙

Beginner

5 modules

Learn how the game works

  • Piece Movement
  • Basic Tactics
  • Checkmate Patterns
  • Rules & Special Moves
  • Reading Chess Notation
Explore lessons
♘

Intermediate

5 modules

Turn rules into plans

  • Opening Principles
  • Endgame Basics
  • Middlegame Strategy
  • Advanced Tactics
  • Strategic Thinking
Explore lessons
♕

Advanced

3 modules

Play like you mean it

  • Popular Openings
  • Attacking the King
  • Advanced Endgames
Explore lessons

Ready to improve your chess?

Free, with no sign-up required — your progress saves right in your browser.

Create an account whenever you like to sync progress across devices.