A perfect Sudoku is here for all sudoku lovers with amazing 16 different difficulty levels. Level 1 to 16 varies from very simple and easy to hard and toughest game play. BEST PART - 1,00,00,00,00,000+ unique puzzles So get ready to get puzzled.. Features - 1) 1,00,00,00,00,000+ unique puzzles 2) different difficulty levels from learner to expert level 3) Undo, Redo functionality 4) Hints 5) Pencil mode 6) Easy and simple game play. 7) Very addictive iTunes link:Addictive-Sudoku