Traditional Sudoku is a logic-based placement puzzle. The object is to fill the grid so that every column, every row and every 3x3 box contains the digits 1 to 9. The puzzle setter provides a partially completed grid so that there is only one solution. AvexLab Sudoku presents Sudoku game with very simple and user-friendly interface. You may choose three different levels of difficult. AvexLab Sudoku provides powerful prompting. Photo background!