Classic Sudoku game for all fans of the genre. In this game you have a nine by nine square and you can choose the difficulty of sudoku. Sudoku was invented by the Japanese to replace the crossword puzzle that they can not do because of the different characters of their language.

The rules of the game: the puzzle is composed of a grid of 9x9 squares in each of which has to write a number, 1 to 9. The grid is divided into 9 regions of 3x3 squares. In each column, each row and in each square, each number must appear only once.