Sudoku : Puzzle Sudoku

Best Sudoku You won’t be looking for a paper puzzle ever again!
With 4 difficulty levels, intuitive interface, and all the functions right at your fingertips, this Sudoku app is sure to be your favorite. Interrupted? Exit Sudoku, and the puzzle is saved exactly as you see it!
Want to know how you stack up against other Sudoku players? Upload your results to our servers and see for yourself, or take part in a weekly Sudoku competition.
Features:
- 4 difficulty levels
- Pencil marks (a.k.a. Notes)
- Auto-save
- Unlimited Undo and Redo
- Intelligent hints that use only logic