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

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

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

hard 
any comments may be put here
following data...

