Start the game online before deciding whether you want the app for later rematches.
Sudoku Challenges
CLEAN. SMART. ADDICTIVE.
Social Sudoku
Play Sudoku online with friends without setup friction.
Open the multiplayer board, choose how you want to play, and send one invite. No complicated room setup is required.
- Starts in
- Your browser
- Invite
- Private link or code
- Players
- Friends, families, groups
Share a direct link or code instead of asking everyone to find the same puzzle manually.
Race mode gives every player identical clues and difficulty.
Start online
The quickest friend flow begins on the playable multiplayer page.
- Open multiplayer Sudoku and choose Together or Race.
- Create a private game for someone you know.
- Share the invite, then wait for your friend to join the same session.
Pick the right mode
Use the social format that matches the reason you are playing.
- Together is best for conversation, teaching, and relaxed remote play.
- Race is best when both players want to compare speed.
- Daily challenges work well for group chats that want one puzzle every day.
Next routes
Choose the best next step.
FAQ
Quick answers before the next puzzle.
Do both players need the app?
No. Both players can start from the multiplayer Sudoku page in a modern web browser.
What is the simplest way to play online with a friend?
Choose Together or Race, create a private game, and send your friend the generated link or invite code.
Can people play from different devices?
Yes. Friends can join the same online session from supported phones, tablets, or desktop browsers.
Play more
Keep Sudoku Challenges one tap away.
Use the web board when you want the fastest first game. Use the iPhone app when Sudoku Challenges becomes part of your daily routine.