Sudoku Solver

3
0
6
5
0
8
4
0
0
5
2
0
0
0
0
0
0
0
0
8
7
0
0
0
0
3
1
0
0
3
0
1
0
0
8
0
9
0
0
8
6
3
0
0
5
0
5
0
0
9
0
6
0
0
1
3
0
0
0
0
2
5
0
0
0
0
0
0
0
0
7
4
0
0
5
2
0
6
3
0
0