#g2 f1

6x6
1 0 0 0 1 1
0 0 1 0 1 0
-1 0 -1 -1 -1 0
-1 -1 -1 0 -1 -1
1 0 1 0 0 0
-1 0 -1 0 -1 -1

6x6
1 0 0 0 1 1
0 1 0 0 1 1
0 0 0 0 -1 -1
0 0 1 0 -1 -1
0 0 0 1 1 0
0 0 0 0 -2 -1

6x6
3 1 1 1 1 1
1 3 1 1 1 1
1 1 3 1 1 -1
1 1 1 3 1 -1
1 1 1 1 3 1
1 1 -1 -1 1 3

2^9 * 3^2 * 5 = 23040

