Edge template IV3b
If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each others in some other way.
Red has this threat:
For trying to block the connection Blue has to play on the 5 fields used by that threat.
Moves 1-3 (f2, e3, e4):
These 3 moves can be covered in a single line of play by Red:
Red 4 is connected to the bottom by III-2-e.
Move 4 (e2):
Red 6 is connected to the top by the two fields marked with +.
Move 5 (d4):
Red 4 is connected to the top by the two fields marked with +.