The first door closes, the second door opens, and the wood in the stairwell extends outward.
Following this existing example, Ronald and Patricia start their attempt.
By now, they are well accustomed to solving the maze; the rules here are quickly grasped by them.
With all the doors on the first floor closed, they open the rooms on each side in even and odd sequences respectively, one by one, causing the stairs to gradually extend from the walls.
What Ronald and Patricia have to do is constantly repeat the action of opening and closing doors, allowing the stairs to gradually "grow" out of the walls.
...
With the rules in hand, the time consumption is still unavoidable.
As they repeatedly open and close the doors, the stairs reappear from top to bottom, and there is only about half an hour left before dawn.
At the current efficiency.
If they truly want to fully extend all the stairs, they will undoubtedly face failure in this challenge.
"..."
