
0 1 0  0 6 0  0 2 0
0 0 0  7 0 0  0 5 0
0 0 0  0 9 2  0 0 0

0 0 5  9 0 0  6 0 0
3 0 0  0 1 0  0 0 9
0 0 7  0 0 5  1 0 0

0 0 0  6 7 0  0 0 0
0 8 0  0 0 1  0 0 0
0 6 0  0 2 0  0 3 0

hard
