0 2 0  0 1 0  3 0 0
0 0 1  6 0 0  8 2 0
0 6 0  0 0 2  0 5 0

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

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