A free program for Android, by Digitalchemy LLC.

Sudoku Puzzles – Classic Fun is an addicting puzzle game where you will find yourself solving logic problems in a sudoku style. The app is designed to help you train your brain and become a real sudoku solver.

It’s very simple to play. All you need is a phone or tablet to start.

As soon as you open the app, you will be presented with the first puzzle. It’s your job to fill the grid with numbers 1-9 so that each number only uses one column and each row has a unique combination of numbers.

Try to complete the puzzle as soon as possible.