Sudoku is a cardinal alone with integral system, order and online ranking completed in one of the puzzle game.Our App has mainly two important functions.1. The player can play the sudoku game as the traditional sudoku game.And player can choose three levels:easy , normal and hard.Every level is random created. The player can enjoy the game. There is a function named Top Ten to show the best score.2.Our App can solve the problem of any sudoku game.For example , somebody find a sudoku game on the paper, it is a game with a price and he do not want to cost too much time on it . In this time, the man can use our app,he just need to enter some number as the same as the paper,in one second, the app support the right Answer. It is so easy to use!