Sudoku

Clean, modern Sudoku. Every board has a guaranteed unique solution — pure logic, no guessing.

• 6 difficulties, from Very Easy to Master
• Daily Challenge with streaks
• Notes, hints, undo & optional error-checking
• Stats, timer & best times
• 8 languages, light & dark themes
• Auto-save — pick up right where you left off

Play: tap a cell + a number, or use 1–9 keys and arrow keys.

Plays in your browser, also on Windows, macOS & Linux.