A free program for Android, by keyja.com.

This Android app is for you if you like the Sudoku game! This features the traditional mechanics of the game, so there’s no need for you to learn new tricks and methodologies.

You have the option to play alone or with a friend through the multiplayer option, which could also give you the chance to play with strangers on the internet for more thrill. This also makes for a great way to make friends outside your circle.

Download this app now if you’ve ever found yourself feeling bored and unproductive so you can lose yourself in hours of mind-bending entertainment.