Decabit Software
The goal of Sudoku is to fill in every cell in a 9x9 grid so that the numbers 1 through 9 appear once, and only once, in each row, column and 3x3 block. Below is an example of an unsolved sudoku.

9 4
8 1
7 5 3 8
2 7 1 8
1 8 5 3 6 4
6 4
2 3
4 5 6 7 8
9 3 4 1 8 2 6
Copyright©2017 Decabit Software
Last Updated: 5/20/2017 1:51:14 AM CST