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Rated games in every time control, 48 human-like AI bots, 100,000+ rated puzzles, the complete 12,377-line opening library and free Stockfish 18 analysis — with a generative AI coach on every board.
Free to start · No credit card · Works on any device
Humans, machines, live camera or the sidelines — pick a board and you are playing in seconds.
Instant matchmaking against real opponents with live clocks, Glicko-2 ratings and one-click rematches.
48 bots with distinct personalities across 8 strength levels — from first-move beginner to grandmaster.
Face a stranger over live camera. Real opponent, real reactions, one click to the next game.
Watch games unfold move by move, hop between boards and follow the engine read on any position.
Play, drill, study, analyse and get coached — each one built to professional depth, not bolted on as a demo.
A low-latency game server keeps clocks honest to the millisecond. Pair in seconds, play any control from bullet to classical, and watch your rating move.
48 bots, each with its own opening taste, risk appetite and blunder rate, spread over 8 calibrated levels so every game stays winnable.
100,000+ rated puzzles served at exactly your level, with a daily challenge, a timed rush mode and 60+ tactical themes to drill on demand.
The full ECO corpus — 12,377 lines — with an interactive explorer, personal repertoires, spaced-repetition drills and the Multiverse graph.
Stockfish 18 compiled to WebAssembly runs inside your browser. Unlimited depth, instant evaluation, and nothing ever leaves your device.
Frontier AI models explain what actually went wrong, generate positions and studies from a sentence, and answer questions while you work on the board.
Tactics, theory and fundamentals, each with its own rated progression — so practice compounds instead of drifting.
A rated engine that always serves the next puzzle at the edge of your ability.
Study the full ECO tree, then turn what you keep playing into a repertoire you actually remember.
Board vision, calculation and endgame technique — the unglamorous work that raises your floor.
Not a rebranded evaluation bar. The strongest engine in the world runs on your machine, and a frontier model turns its numbers into sentences.
The engine is compiled to WebAssembly and evaluates locally. No analysis credits, no server queue, no position ever uploaded — and it stays free at every plan.
Ask why a move failed and get an answer in plain language. Describe a position and get it on the board. Keep the coach open while you work through a game.
› why did I lose this rook endgame?
You went passive on move 34. The rook belongs behind the passed pawn — after Ra1 the position holds a draw.
Rankings, progress, archives, identity and preferences — the parts that make a chess account feel like home.
Global rankings per time control and for puzzles, with weekly rating deltas.
5 boardsLevels, badges and milestones that turn practice into visible progress.
Badges & levelsEvery game archived, replayable and reviewable move by move with the engine.
Full archivePublic profiles with rating curves, activity heatmaps and linked chess identities.
Social graphMeet the whole roster, track who you have beaten and hunt the next tier.
48 to beatChallenges, follows and game events pushed in real time, read where you are.
RealtimeFifteen board themes, twenty piece sets, sound and gameplay preferences.
15 themesBuild any position, import FEN or PGN and hand it straight to the engine.
FEN & PGNEverything you need to play and improve costs nothing. Paid plans exist for players who train with intent.
The full platform, no card required.
Three tiers, one board. Scale the tools, not the game.
Straight answers before your first move.
Yes. Playing online, challenging all 48 AI bots, solving rated puzzles, studying the opening library and analysing your games with Stockfish 18 are all free, with no credit card required. Paid plans add deeper review tools, unlimited AI coaching and longer history.
Everything lives in one place: rated online play, 48 human-like bots, 100,000+ rated puzzles, the complete 12,377-line ECO library, free in-browser Stockfish 18 analysis, a generative AI coach and live video chess — behind one fast, modern interface.
No. Stockfish 18 is compiled to WebAssembly and runs directly in your browser, so analysis is instant, unlimited, free and private — your positions never leave your device.
Yes. The 48 bots span 8 calibrated difficulty levels, from complete beginner to grandmaster strength, each with its own playing style. Games stay challenging but winnable as you improve.
AI Studio uses frontier generative models to explain your games in plain language, surface the mistakes you keep repeating and build training plans around them. It can also generate positions, puzzles and studies from a single sentence. The raw evaluation always comes from Stockfish.
Chess Roulette pairs you with a random opponent over live camera and microphone for a face-to-face game, with a skip button to move on whenever you like. It is an age-restricted feature and requires an attestation before you can enter.
Yes. Every surface — board, puzzles, analysis and the AI studio — is built responsive first and works on phones and tablets in the browser, with no app install required.
Bullet 1+0 and 2+1, blitz 3+0 to 5+3, rapid 10+0 to 15+10 and classical 30+0 or 30+20, plus any custom control you set. Each category keeps its own Glicko-2 rating.
Join Bichess and play rated games, drill 100,000+ puzzles and review every move with Stockfish 18 — free, from the first minute.
No credit card · No download · Free forever plan