"Sudoku-kun" is a game in which numbers from 1 to 9 are inserted where numbers are missing in 9 x 9 squares called sudoku (Nampre). Complete all available squares with the following simple rules. ・ Dont put the same number in row / column (put all the numbers from 1 to 9) ・ The area (3x3) must not contain the same number (enter all the numbers from 1 to 9) There are three levels of difficulty: Easy, Normal, and Hard. Which one do you want to challenge? Its a simple game but Im passionate about it. Please enjoy it when you have time for a change or when you want to change your mind.