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