In Sudoku Classic you can set three different themes: blue, brown, and gray. This will change the look and feel of the game.

You can choose one of the three themes and the look and feel will be changed to match your preferred style.

Five levels of difficulty will make the game more challenging and will help you to improve your skills.

A hint button will allow you to open one digit, and a pencil and eraser will appear. This is helpful for difficult puzzles.

A score panel is also added to the game, so you can see your progress and performance.