Sudoku is a classic puzzle game developed by maru yon and available for free on the Android platform. The game's objective is to fill a 9x9 grid with digits, following three simple rules. Each row, column, and 3x3 sub-box must contain all the digits from 1 to 9 without repetition.

The game offers different levels of difficulty, ranging from easy to hard, providing a challenge for players of all skill levels. The user interface is simple and easy to navigate, with a clean design that allows for easy input of numbers. Overall, Sudoku is a great way to exercise your brain and pass the time, and this app provides an enjoyable experience for fans of the classic puzzle game.