Free · no sign-up · for any age
Free chess tools
Learn an opening trap, practise it against a computer that plays like a person, then check your own games. Each tool tells you why a move is wrong, not only that it is.
Train and review
- TrainMate in one, against the clockFind the checkmate, then the next one, before the time runs out. 600 positions, easiest first.
- TrainIs this move safe?A position and a move. Decide whether it is safe, then see the reason on the board. Ten positions a round.
- PlanWhich opening should I play?Five questions, then one opening for White and a defence to 1.e4 and 1.d4, in the order to learn them.
- PlanStudy plan by ratingEnter your rating and see what players one level up do better, with a week of practice built around it.
- LearnTrap Lab45 opening traps and gambits. See each one, stop it, spring it, then play it from memory. Every wrong move gets a reason in plain words.
- LearnOpening TrainerThe first 10 moves of 11 openings, line by line. Watch, practise, recall, then play on against the computer.
- ReviewCheck my gamePaste a game or pick one from Lichess or Chess.com. Stockfish runs on your device, shows its best lines for every move and names the one move that mattered.
Look things up
- DataHow long should I think?Thinking time by rating and stage of the game, and how many long thinks your clock allows.
- DataOpenings by levelWhat players at your rating actually play, from about 280,000 games.
- DataRating calculatorCompare Lichess, Chess.com, FIDE and US Chess ratings.
- PlayChess960 generatorAny of the 960 starting positions, by number or at random.
How the tools work
- Checked by Stockfish. Every legal move in every training position was scored ahead of time, so the reason you see is taken from the engine's line, not guessed.
- Runs on your device. The computer opponent and the game checker run in your browser. Your games are not uploaded.
- Progress stays with you. What you have learned is saved in this browser. There is no account.
Teaching a child chess?
LWSed runs live online chess classes with FIDE-rated coaches. The first 30-minute class is free.
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