Sudoku
Fill 1–9 with logic
Offline
Practice on your own, no connection needed.
Mode
Difficulty
Online play
Match with other players. Start when the table is full.
Live matches
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How to play
- Fill empty cells with 1–9 so each row, column, and 3×3 box contains each digit once.
- Practice allows undo and hints; the daily puzzle is fixed by date; race the computer or play online on the same puzzle.
- In a race, wrong entries count as mistakes and add a 30s penalty; 3 mistakes eliminate you.