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

0 0 0  0 0 1  0 0 2
0 0 0  0 7 0  0 0 0
7 0 0  5 0 0  0 0 0

0 0 0  7 0 0  0 0 0
0 0 2  0 5 6  0 0 1
0 0 1  8 0 0  0 6 0

challenge 26aug23
