Play Sudoku Online
Free Sudoku with a competitive twist. Race the clock and live opponents on the same grid, climb a ranked ladder, or solve a fresh daily puzzle.
Play Sudoku nowSudoku, but a race
Every player gets the same puzzle and the same start. Fill the grid so each row, column and 3×3 box holds the numbers 1–9 — faster and more accurately than your opponents. You can see how full their boards are in real time, so the pressure builds as someone closes in on a solution.
Ranked, friends, or daily
Jump into a ranked ladder match to earn a rating and a tier, spin up a private lobby to challenge friends by code, or take on the global daily Sudoku — one puzzle, everyone, once a day.
Free and instant
No app, no sign-up to try the daily — it runs in any browser on desktop or mobile. Want letters instead of numbers? Try multiplayer Wordle too, or read the FAQ.