
0 0 0  0 0 0  5 0 0
2 0 0  8 0 0  0 0 7
0 6 0  4 7 0  0 0 0

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

0 0 0  0 8 4  0 5 0
6 0 0  0 0 7  0 0 8
0 0 1  0 0 0  0 0 0

Challenge sat22jan22 X
linkedPairs(7) show diag pair
