Have you played SoduKu ?

Have you played this simple numeric puzzle game? I am amazed at the popularity of this game . It is available online, on mobile , on books and on papers. With 81 Squares , grouped into nine blocks of nine numbers each, you must fill each block with the numbers 1 to 9 as well as the horizontal rows and vertical columns. You cannot repeat any number in the Row or column . The popularity is derived from its simplicity. And you do not need Mathematical skills. Just logic and patience. Check this one out.

If you have the time.. try it out. You will be amazed .