Would Partial cover apply in this melee situation?
F = Fighter has a reach weapon (10')
A = Ally
o = open space
E = Enemy
E o E
o A o
o F o
Confused by this situation, as I'm not sure if lines pass through Ally square.
the "ranged" character chooses one of it's corners. Then it draws a line to all the corners of the target. If any line is blocked there is cover.
So in your example you're clear. You chose the close corner and you have clear lines to all the corners of the enemy.