With Sudoku Deluxe, you'll never run out of Sudoku puzzles again. This app features 4,000 puzzles at four levels of difficulty. You can even create your own puzzles. Undo and redo movies, use pencil marks, and auto-save games. Keep statistics, including fastest times, average times, and completion percentage for each level. Submit results and track progress online. Sudoku Deluxe supports trackball, touch screen, and keyboard.