SCROLLING DOWN WILL REVEAL SOMETHING!
I found this online and have no way of knowing what passing this test means.
Maybe it was made by someone with Autism and our goal is to simply point that out.
I'm just posting this to see what you guys come up with, please post results. My answer is the first comment.
No this mean that you have a fake version of the maze.
The middle line between the two upper rooms is supposed to have a door as well.
Your version does not and it therefor makes it possible to actually solve the maze, but when the maze has the door that has been removed then it is impossible to solve.
He drew one line for each door because common English is logically ambiguous. I doubt it's medically significant, but the idea is that a normal person would infer what you meant whereas an autistic might not.
English isn't an ambiguous language necessarily, it's just that the person who wrote the OC used ambiguous phrasing. Saying "One line through all of the doors" could mean literally putting one line through all of the doors, but not necessarily the same line. It could simply mean that you must put one line through all of the doors in whatever way you see fit to do. To be more clear, the OP should have written "draw one continuous line through all of the doors" or something to that extent to clear up the ambiguity.
But this is all irrelevant as the OP misspelled the word "through". Twice.
If you want a long and boring explanation, here I go.
We can draw a graph instead of the labirinth. Each room is a node/vertex, and each door a room has is a edge, which belongs to the room.
To statisfy the conditions, we need to go through each door once, so we need to use every edge only once in our graph. In oher words, we need our graph to be an Euler line.
A graph contains an Euler line if, and only if there are exactly two nodes with an odd number of edges, and all other nodes has even number of edges.
Now we have three rooms with five doors. Five is an odd number, so we do not have an Euler line, meaning we can't complete our task with one stroke.
On the other hand, the labirinth in the post picture has only two rooms with five doors, the other rooms have four doors.
TL DR : It's math.
Well I'm not speaking english as my native language, neither do I learn (most of) my subjects in it, so I just translated how they call it in my language.
But thank you for telling me its correct name, I keep this in mind.