Play chess online free
Instant games against 48 lifelike bots from beginner (~400) to grandmaster (~2600), or live games with friends via a private link. Bullet to classical, rated or casual.
Play nowC4Chess: Play Chess Free, Scout Any Opponent, Learn Chess Properly
Got a chess question? Ask C4.
Ask me anything about chess. Paste a game and I'll walk you through it on a board.
C4Chess's own system, not an AI chatbot: no ChatGPT, Claude, Gemini, Grok or any other AI, and nothing you type is sent to one.
C4Chess
Play chess. Get better. Prove it.
Free bots, puzzles and lessons, plus Missions that check your progress in real games.
Climb the Bot Ladder
48 lifelike personalities from 400 to 2600. Each one chats and plays like a human at its level.
Challenge a botLevel Up With Puzzles
Earn XP for every puzzle you solve and reach a new level every 100 XP.
Solve a puzzleLearn With Lessons
Short, focused lessons for every level, from your first moves to real tournament plans.
Start a lessonCollect 64 Badges
From bronze to legendary. Every badge is earned in your real games.
Start collectingScout and Spar Any Opponent
Know their game before move one. Play them before you play them.
Missions: improvement you can prove.
Learn it, drill it, play it. Then we check it in your real games.
Start your first missionStay Updated With Global Chess News
Fresh stories, results and ideas from the chess world, every day on ChessDaily.
Open ChessDaily
Your free chess toolkit
C4Chess is a free online chess platform: play 48 lifelike bots or a friend with a private link, solve daily chess puzzles, ask chess questions beside a board with Ask C4, scout any chess.com or lichess opponent before you play, and build an opening repertoire, right in your browser with no download. When you want more, our coaches run structured online chess classes for kids and adults.
Free online chess
Play Chess Online Free. Learn, Practice and Improve at C4Chess
C4Chess is a free online chess platform and coaching academy. Play against 48 bots with real personalities, challenge friends live with a private link, solve daily puzzles, ask chess questions beside a board with Ask C4, scout your next opponent from their real games, and follow structured lessons — in your browser, on any device, with no download. When you're ready to go further, our coaches run structured online classes for students of all levels.
- Lifelike bots
- 48
- Strength levels
- 12
- Chess variants
- 8
- No sign-up to play
- Free
Lifelike bots
Strength levels
Chess variants
No sign-up to play
Everything you get, free
One portal for playing, solving and learning
Ask C4: a chess chatbot with a board
Ask about rules, openings, tactics or famous games, or paste your own game and walk through it move by move. Answers come with a board you can play on. Not an AI chatbot.
Ask a questionDaily chess puzzles
Sharpen your tactics with fresh puzzles every day, from one-move wins to deep combinations.
Solve puzzlesLearn chess step by step
Structured lessons and a full video library take you from the rules to real middlegame plans and endgame technique.
Start learningChess Daily
A daily dose of positions, ideas and stories from the chess world, curated by the C4Chess coaches.
Read today's postGuided chess missions
Improvement journeys that string the tools together: learn the pattern, drill it, then prove it in a real game. Every step is verified from your own play.
Browse missionsBuild an opening repertoire
Answer two questions and get a complete repertoire for both colours, chosen to cover what opponents actually play and trained line by line.
Build yoursGood to know
Frequently asked questions
Is C4Chess free to play?
Yes. You can play chess against 48 bots of every strength, challenge friends with a private link, solve puzzles and watch lessons for free. No download, and no sign-up needed to start playing.
Can I play chess online with friends on C4Chess?
Yes. Create a challenge from the Play page, choose the time control and side, and share the private invite link. Your friend joins in one click, on any device.
How strong are the C4Chess bots?
The 48 bots span 12 levels from about 400 to 2600 Elo. Each bot has a personality, chats during the game, and plays human-like moves, including human-like mistakes at lower levels.
Can I scout my opponents on C4Chess?
Yes. Scout reads any chess.com or lichess player's recent public games and builds a preparation dossier: opening weaknesses, repeated lines, tilt patterns and a pre-game checklist. It is free with a C4Chess account, and you can preview the scout page before signing up.
Does C4Chess have a chess chatbot?
Yes. Ask C4 is a free chess chatbot with its own board. Ask about the rules, openings, tactics, endgames or the great players' games, or paste a game, position or move list and go through it move by move. It is not an AI chatbot: answers come from C4Chess's own chess lessons, opening statistics and analysis engine, and nothing you type is sent to an AI language model. Guests can try a few questions without an account.
Does C4Chess offer chess coaching for kids?
Yes. C4Chess runs structured online chess coaching with live classes, homework, daily lessons and progress tracking for students, with a free demo session to start.
Which chess variants can I play?
Standard chess, Chess960, King of the Hill, Three-Check, Antichess, Horde, Atomic and Racing Kings, against bots or friends.