8 8 

1 1 1 1 1 1 0 0
1 1 1 1 1 1 0 0
1 1 1 1 1 1 0 1
1 1 1 1 1 1 0 0
1 1 1 1 1 1 1 0
0 1 0 0 0 0 1 0
0 0 1 1 1 1 0 0
1 0 0 0 0 0 0 1 

88m: 40 units