Su Doku

Early 2005, newspapers in India started publishing a puzzle called Su Doku in the supplement sheets. Its popularity rose quickly and you can find morning commuters attentively pouring over one. su Doku, a Japanese Game, is a logical number placement puzzle. It consists of a 9*9 grid (9 rows and 9 columns). The grid is further grouped into 3*3 sub grids. The idea is to fill in the empty square boxes with numbers so that every row and every column has the numerals from 1 through 9. No number should be repeated in any single row or column or in a sub grid.

The grids come with some numbers randomly placed. The complexity of the game depends on the numbers already present, number of eliminations required to fill an empty square and such. On an average it takes about 30 minutes to complete the grid. For instance, if 2 adjacent sub grids have the number 6, then the 3rd one should not have 6 in those horizontal rows. So they are eliminated.

what is nice about the game is that it requires no mathematics, just logic! I have been doing it for the past 2 months and I just love it. You can try too at TimesSudoKu or WebSudoKu

Categories: sudoku