Play Sudoku with friends
Make a private room, send the link, and you are playing Sudoku together in seconds. Race each other, take turns, team up, or bring up to eight friends into a Battle Royale.
Challenge a friend →Free · no download · works on any phone or computer
How it works
- Pick a mode and tap Challenge a friend.
- Share the room link or the 6-letter code (WhatsApp, Instagram, anywhere).
- Your friend opens it and the match starts automatically. In Battle Royale, the host taps Start when everyone is in.
Made for playing together
Send quick reactions like GG! and 🔥 during the match, see when a friend loses connection and comes back, and ask for a rematch with one tap.
Every mode works with friends
Clash, Territory, Duel and Split Sight are for two. Battle Royale rooms take 2 to 8 players.
Which mode suits you and your friend?
- Evenly matched and competitive: Clash. Same puzzle, first to finish wins, with powers to throw at each other.
- One of you is much faster: Duel. It is turn-based, so speed does not matter. Careful logic wins.
- You want to talk while you play: Split Sight. You each see different clues and solve one board together.
- You like board games: Territory. Claim cells in your colour and fight over rows, columns and boxes.
- There are more than two of you: Battle Royale, for up to eight.
Playing with someone far away
Rooms work over the internet, so your friend can be in the next room or another country. Both of you see the same board, live. There is no need to add each other or exchange usernames first. The link is the invitation.
It works across devices too. One of you can be on an iPhone, the other on an Android phone or a laptop, and the match is the same.
Playing with family
Split Sight is a good choice for a parent and child or for grandparents and grandchildren, because you win or lose together. For a family game night, open a Battle Royale room and let everyone join on their own phone. Rounds are short, so nobody is out of the game for long before the next one starts.
If someone is new to Sudoku, this guide teaches the rules in five minutes.
Tips for a good game
- If a friend drops out of the lobby, their place is kept for a few minutes so they can rejoin with the same link.
- After a match, ask for a rematch with one tap.
Questions
Does my friend need to install anything?
No. The link opens Sudoku Clan in their browser and joins your room. They only pick a display name.
How many friends can play Sudoku together?
Two players in Clash, Territory, Duel and Split Sight, and up to eight in a Battle Royale room.
Can someone join my room without the code?
No. Private rooms are only reachable with the code or link, and the host can remove anyone from the lobby.
Can we play on different kinds of phone?
Yes. The game runs in the browser on iPhone, Android, tablets and computers, and players on any of them can share a room.
Do we need accounts to play together?
No. Each player only picks a display name. Signing in is optional and keeps your progress across devices.
Can we play again without a new link?
Yes. Ask for a rematch at the end of a match and you play again straight away.