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

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

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