Sudoku Ultimate lets you access an infinite number of Sudokus. You can choose between six levels of difficulties. Beginners, advanced learners and experts - everybody will find what they are looking for! But that's not all: Change the symbol set and play the Sudoku with letters, shapes or colors. Features: - Six levels of difficulties: Easy, Medium, Hard, Very hard, Insane, Inhuman - Infinite number of automatically generated Sudokus - Play with numbers, letters, shapes, colors and 20 additional symbol sets. - View hints, when you stuck - Make notes with a virtual pencil - Choose between different designs - Optimized for phone and tablet Available languages: English, German, French, Bulgarian, Russian