Play standard 9x9 grid Sudoku puzzles on your phone. Exercise your visual scanning and processing powers and strengthen your brain. With four difficulty levels, intuitive metro-styled interface, and all the functions right at your fingertips, this Sudoku game is sure to be your favorite. Features: • 4 different skill levels (easy, medium, hard, evil) • random puzzle generator so you will always get a new one. • create blank puzzles to solve your newspaper Sudoku. • open and save your puzzles, auto save previous puzzle • use 'tap and hold' on the digits to reverse the input • unlimited undo & redo • pencil notes and 'clear all notes' menu • validate, hints, solve • settings (colors, candidates, smart digits, clock, best times, in corrects, highlights, sound, vibrate, screen time-out). • portrait and landscape modus • 10 free trial puzzles.