examples/metro-2012-08-24.sudoku


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

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

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