Sudoku – 9.2.1.4

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 is sure to be your favorite. Interrupted? Exit Sudoku, and the puzzle is saved exactly as you see it! 4 levels - easy, medium, hard, extreme. 3 input modes - digit first, cell first, popup.