
0 0 0  0 2 9  0 7 0
0 0 4  0 7 0  0 0 0
0 0 0  0 0 0  3 0 0

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

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

challenge 30dec23

