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

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

0 4 0  0 2 0  0 0 0
0 5 0  0 0 9  0 0 0
0 0 0  0 0 6  0 0 0

hard shows linkedPairs(5) on diag!
