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