All you have to do is to stand in front of it. Then select a Pokemon that knows cut and have it use it. The door will open.
it says cut the door, so go to the door then use cut with a Pokemon that knows cut and the door will open.
Use cut
ahh i was stuck here too for awhile heres what you do friend,get a Pokemon that knows cut and then just walk right up to the door (make sure your facing it) and go to your Pokemon list and click on the Pokemon to use cut and it will cut the dotted door to dust which has a gem for the trade machine.
You could find it in the dotted hole. Remember to bring a Pokemon that knows cut to open the door.
All you have to do is to stand in front of it. Then select a Pokemon that knows cut and have it use it. The door will open.
you use the hm cut on the door to open it
Use the move Cut.
because u have to cut the door to get into it
cut the door
when there is a fire you go out of the Fire Door.
When you see the strange entrance, use cut to open it. You MUST fall through the holes in this way: North hole. West hole. East hole. South hole.
walk up to the entrance and use cut on it. the door will open.
use cut on the door then go left then up then rite then down in the holes.
You're going to have to go on the S.S. Anne and then get HM Cut from the Captain. Then you will be able to cut the tree that blocks the way to the gym.
You don't need one. You need cut you go right and cut a tree and go back in go into the back door.
The door is a fire exit (Fire Door) so it must be kept clear in case of emergency.