Sudoku - world famous brain puzzle!

*** Let's enjoy world famous addictive puzzle game! ***
Sudoku is a logic-based,combinatorial number-placement puzzle.
The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9.
Not only ordinary number place puzzles, this app include many unique fun puzzles such as "animal place puzzles", "color place puzzles" and "text place puzzles".
You can freely adjust the difficulties by choosing levels. We offer 4 levels from easy to expert.
Features:
-> HD quality beautiful graphic
-> Simple and intuitive user interface
-> Difficulty options: easy to expert
-> 4 type of games: classic, color, animal and text
-> Hint function
-> Support both iPhone and iPad