Sudoku is a logic-based, combinatorial number-placement puzzle game. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9. The game is completely free with minimum ads. Sudoku master is one of the best Sudoku game and you can download it for free(sudoku game free download). The best and free version of Sudoku game free download.