It will take about 15 seconds to load. How to solve: 1.Press Arrow keys to move 2.Press a number(1,2,3 etc) to set it in a place(if the number is not valid for the place,the program will not let you set it there) 3.Press "0" to delete a number that you have set How to get the solution: Click the "Solve" key Rules: Each row,Column and region(3*3 grids) will contain all the numbers from 1 to 9.