Free · real-time · no download
Sudoku, but multiplayer.
Race a friend on the same puzzle, take turns in a battle of logic, or outlast seven others in a Sudoku Battle Royale. Play real people at your level, or bots that play like people.
Android & iOS apps coming soon
Pick your way to play
Five modes, all classic 9×9 Sudoku. What changes is who you play with, and how you win.
Clash
Race the same puzzle. Fire powers. Win.
- 1 v 1
- 4–6 min
- Ranked
- Same puzzle, first to finish wins
- Finish rows, columns and boxes to charge energy
- Spend it on Fog, Ice, Blind and Shuffle
Territory
Paint the board in your colour.
- 1 v 1
- 6–9 min
- Ranked
- Each correct digit claims a cell: +1
- Own most of a full row, column or box: +5
- A wrong digit freezes you and gives your rival +1
Duel
Sudoku, chess-style.
- 1 v 1
- Turn-based
- Ranked
- Up to 3 digits per turn
- Singles score 1 … wings and fish score 8
- Guesses score 0, wrong digits cost 2
Battle Royale
Eight players. One crown.
- Up to 8
- ~5 min
- Ranked
- Up to 8 players in one room
- Short sprint boards, fewer safe spots each round
- Slowest are knocked out until one is left
Split Sight
Two halves of one puzzle.
- 2 together
- 6–10 min
- Co-op
- You each see different clues
- 6 shares per game: ask wisely
- Win or lose together
Bring your clan
- Pick a mode and tap Challenge a friend.
- Send the link on WhatsApp, or share the 6-letter code.
- They tap it and you're playing. Battle Royale rooms take up to 8.
Send quick reactions like GG! and 🔥 mid-match, and ask for a rematch with one tap.
Challenge a friend →
Learn Sudoku, from the first rule to the X-Wing
New to Sudoku, or stuck on a hard one? These guides use real boards from the game, and the solver explains any puzzle one step at a time.
Questions
What is Sudoku Clan?
A free Sudoku game you play online against real people or with friends: race the same puzzle, take turns, claim the board, team up, or survive an 8-player Battle Royale. It also has a daily puzzle and solo play.
Is it free?
Yes. Play in your browser on any phone or computer, with no download and no sign-up. Android and iOS apps are on the way.
How do I play Sudoku with a friend?
Pick a mode, tap Challenge a friend and send the link. Your friend opens it and the match starts.
Do I need to learn new rules?
No. Every mode uses classic 9×9 Sudoku rules: each row, column and box holds 1 to 9 once. Every puzzle has one solution and needs no guessing.
Which mode should I start with?
Clash if you like speed, Duel if you like careful logic, Territory if you like strategy, Battle Royale with a group, and Split Sight if you would rather team up.