Chess
Play chess vs a Stockfish-powered AI or a friend - full rules, timers, PGN/FEN export
100% free. Runs entirely in your browser - your files and data never leave your device and nothing is uploaded to any server.
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About this tool
Play chess against a Stockfish-powered AI (one of the strongest chess engines in the world) or challenge a friend on the same screen - with full rule enforcement, timers, and the ability to export your game in standard PGN/FEN notation for review or sharing.
How to use this tool
- Choose opponent modePlay vs Stockfish AI or local two-player mode.
- Set time and levelPick timer style and AI difficulty for your skill.
- Play complete legal gameUse rule enforcement for checks, castling, and promotion.
- Export and reviewSave PGN/FEN to analyze key positions and mistakes.
Play chess against the computer at your level
Choose one of six computer levels: beginner, easy, medium, hard, expert or master. Beginner and easy play weak moves and suit new players and children, medium gives a casual player a fair game, and expert and master use much more of the Stockfish engine’s strength and will beat almost anyone. Start lower than you think, win a few games, then move up a level.
The board runs in your browser, so there is nothing to install and no account to create. Play with a timer or without one, and export the game as PGN afterwards to go through it move by move.
Key features
- Strong tactical and strategic training in one place.
- AI and local multiplayer support both solo and social play.
- PGN/FEN export helps structured improvement.
- Great for beginners through advanced players.
Common uses
- Practicing openings and endgames daily.
- Running local chess matches with friends.
- Reviewing blunders from completed games.
- Preparing for school or club tournaments.
Tips for better results
- Use slower time controls when learning.
- Review every loss for recurring tactical errors.
- Prioritize king safety and development early.
- Export critical positions for later study.
Mistakes to avoid
- Playing only blitz without analysis.
- Ignoring endgame fundamentals.
- Making fast moves against stronger AI without a plan.
- Skipping post-game review entirely.
Available options
- Play vs computer
- Difficulty
Frequently asked questions
Stockfish is one of the strongest chess engines available, capable of playing at superhuman strength - most implementations let you adjust the difficulty/depth so beginners and experts alike can find a suitably challenging game.
PGN records the full move history of a game (useful for reviewing or sharing a complete match), while FEN captures a single board position as text (useful for setting up or sharing a specific position). Both are standard chess notations recognized by virtually all chess software.
Yes - alongside playing against the AI, local two-player mode lets two people share one screen and take turns.
Start with principles rather than memorised lines: control the centre with pawns, develop knights and bishops early, castle within the first ten moves and avoid moving the same piece twice. The Italian Game (1.e4 e5 2.Nf3 Nc6 3.Bc4) follows all of them.
Look for checks, captures and threats on every move, for both sides - most games at club level are decided by a missed tactic. Short daily tactics practice and reviewing your own losses improve play faster than studying openings.
Bullet games give each player under 3 minutes, blitz 3-10 minutes and rapid 10-60 minutes. Longer time controls are better for learning, because you have time to calculate instead of playing on instinct.