Sudoku
Today sudoku is, without doubt, the most popular logic puzzle. Although it seems simple, its solving requires numerous strategies. The first sudoku was made about thirty years ago.
Play sudoku !
This program creates sudoku puzzles in five different difficulty levels. There is an option to check your progress at any time. Also you can check the puzzle when you have finished, or to let computer solve it. This game was taken from the widgets website where you can find other similar applications.