Sudoku is a Japanese number puzzle game. The rules are simple but the puzzles require a lot of logic thinking to solve.
The goal is to fill all the squares on the board with the numbers 1-9. The rules are simple: Each 3x3 region, row and column may contain only one instance of the numbers 1-9.
To begin with, the board contains a set of numbers. Based on these you must then complete the remaining squares using the rules above and you own logic.
You can choose from three different difficulty setting when you start a new game. The increasing difficulty requires more advanced logic to solve.
