Pure Sudoku
CLEAN. SMART. ADDICTIVE.
Today's puzzle Today
Be the first to set a time today.
Prefer solo practice? Pick a difficulty to generate a fresh board instantly.
Pick the difficulty you want to race.
How do you want to play?
Play Sudoku Online â Free, Fast, Beautiful
Pure Sudoku delivers handcrafted puzzles in your browser with no downloads, clutter, or distracting ads. Choose your level, sharpen your skills with our smart tools, and keep an eye on personal bests as you improve.
Why players choose Pure Sudoku
- Clean interface built for focus and easy readability on desktop or mobile.
- Instant puzzle generation powered by our advanced solver and uniqueness checks.
- Smart notes, conflict detection, and undo history designed for serious solvers.
- Performance tracking with average times per difficulty to motivate steady improvement.
Challenge friends in real-time Sudoku races
Invite a friend with a private link or join the quick-match queue to battle players worldwide on the same board. Every move is synced through our Pure Sudoku multiplayer service so you can celebrate wins instantly.
Prefer touch controls? Grab the Pure Sudoku iOS app for a native, offline-friendly experience.
Download on the App Store