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

0 9 0  0 0 0  0 0 1
0 0 0  9 0 7  0 0 0
3 0 0  0 0 0  0 6 0

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

challenge 26sep23

