Sudoku is a puzzle game designed for a single player .All you need to do is fill in the grid while making sure that each row, column, and region or block of squares contains each digit exactly once.

-- Features --

- There are 4 levels of difficulty from easy to expert .
- if you are not sure , use the pencil to mark the box number .
- Unlimited number of undo .
- Play offline , it's not require a network connection .
- Clear and simple design .
- Don't forget the hint button if you are stuck .
- Eraser. Get rid of all mistakes .