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