Browser Sudoku for solo solving or a live two-player race
Play Sudoku online
Solve a 9×9 Sudoku on your own, or invite a friend and race on separate copies of the same puzzle. You can see each other's progress without revealing the other board.
The same Sudoku rules, with a friend-friendly race mode
Every row, column, and 3×3 box must contain the digits 1 through 9 exactly once. Multiplayer changes the pace, not the puzzle rules.
Choose the kind of Sudoku session you want
The multiplayer game and the Daily Sudoku are separate experiences, so you can choose a social race or a date-based puzzle without mixing their progress.
- Race a friendCreate a room, share the invite link, and solve the same puzzle on separate boards. First correct completion wins.
- Solo puzzleOpen the standard Sudoku game by yourself and solve at your own pace.
- Daily SudokuPlay the date-based daily puzzle, browse the archive, or use the endless daily-style mode.
Sudoku online questions
Can two people play Sudoku together online?
Yes. Create a two-player room and both players receive the same puzzle on separate boards. The first player to complete it correctly wins.
Can the other player see my filled-in numbers?
No. During a race, the other player's board remains private. Only completion progress is shared.
Can I play Sudoku by myself?
Yes. Use Solo Puzzle for the standard game, or Daily Sudoku for a date-based puzzle and archive.
Do I need to download anything?
No. Sudoku runs directly in the browser on desktop, tablet, and phone.
Start with the puzzle, then choose your pace
Learn the grid in the visual guide, solve alone, or open a room and race a friend.