Sudoku
Fill the 9×9 grid!
Sudoku — 9×9 Number Puzzle
What is Sudoku?
Sudoku is a logic puzzle on a 9×9 grid. Fill every row, column, and 3×3 box with digits 1–9 without repeating.
How to Play
Tap a cell, then tap a number. Use Notes mode for candidates. Check validates errors. Three difficulty levels available.
Tips
Scan for cells with only one possible number. Use notes for hard puzzles. Work box by box.
FAQ
Unique solution?
All puzzles are valid Sudoku.
Timer?
Best clear time saved per session.
Pause?
Yes — timer pauses too.