Sudoku Guru Lite is free version of Sudoku Guru.Wanna be a Sudoku Guru? Just challenge the most powerful Sudoku Guru game on iPhone and iPod Touch now!- 5 difficulty levels from Apprentice to Guru- Relax your mind with oriental style interface and pure natural sound- Options on marking candidates mannually or automatically- Advanced Hint System may present you the following strategies visually, which will be your best teacher on your way to be a sudoku guru o Naked Single o Hidden Single o Naked Pair o Hidden Pair o Naked Triple o Hidden Triple o Locked Candidates o XWing o Swordfish o XYWing o XYZWing- Unlimited Undo/Redo function- Custom your own game from newspaper or other media- Save the game automatically on pressing the home button or a incoming call- Sudoku Solver integrated- Optimization to save your battery life