
0 0 0  1 0 0  0 0 0
0 0 2  0 3 0  0 0 0
0 1 0  4 0 5  0 0 0

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

0 0 0  9 0 8  0 1 0
0 0 0  0 1 0  7 0 0
0 0 0  0 0 7  0 0 0

round4, puz5 2023 sudGP
watch for row/col pairs/triples; singles
hidden pairs/triples/quads

