
0 0 0  0 6 0  7 0 0
0 4 2  3 0 0  0 1 0
0 0 0  0 0 5  0 0 8

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

0 0 7  0 0 0  0 3 0
0 0 0  2 0 0  0 0 0
9 0 0  0 0 8  2 0 7

hard needs one applic. Kcell to solve

https://www.youtube.com/watch?v=dOFIWSqcFLA

