15'000 puzzles, eight difficulty levels, the world's best hint functionality and statistics. The only Sudoku app you'll ever need! ••••• Game Play ••••• ★ Eight different Sudoku variants: Classic & Jigsaw puzzles (aka Squiggly), Asterisk-, Centerdot-, Color-, Hyper-, Percent- & X-Sudokus ★ Eight difficulty levels: very easy, easy, moderate, advanced, hard, very hard, fiendish, nightmare ★ Six input methods (digit first, cell first, mixed, Andoku cell first, Andoku digit first, popup) ★ Pencil