Free version of sudoku!
three different levels!
Sudoku is a logic-based, combinatorial number-placement puzzle. 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.
Tags: sudokus del 1 al 9 , oku , sudoku for verizon phone , application sudoku