[Unsolved]WorldGuard - How can i protect like this (look at the image)

Hey! I just build a massive city with my friends, we are going to use it as server spawn but we realized how bad it will be to protect it with cuboid region, is there anyway we can protect it like this(look at the image below):


Everything inside of this "circle" should be protected.
Thank you for your time!

 

Beware of the polygons!

 

use a square, anything else can mess up your regions.

 

I tried that already, everything inside was unprotected, i maybe did something wrong?

Exactly which command should i use for that?

 

He meant cuboids, that would be a normal wand selection

Did you get rid of the selection height? (you can use //expand to modify e.g. the selection 's height)
You could also visualize the selection by e.g setting the outline to a block and //undo'ing it then

 

I tried again and this time I did //expand vert and somehow it worked!
Thank you very much!

Edit: Someone should change threade prexfix to [Solved], i can't do that.