disoriented wrote:
This was actually a trapdoor puzzle I kinda liked because it had a logical element to it.

Going from memory, the idea is:

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1) Find a path from the north entrance to the trapdoor tile located in the lower right inside the inverted "U" shape.



2) Make your way back out to the orb. Before you strike the orb to toggle all the doors, be sure that you have dropped all trapdoors that become inaccessible after the orb is struck.


3) Go to the trapdoor tile toward the upper left that's inside the inverted "C" shape.



4) Find a path that drops all remaining trapdoors and gets you to the exit in the lower right.

Doing all of this requires that you leave certain squares intact, so you have sufficient entry and exit points for each of the areas you need to access.

In particular, leave intact the trapdoors that access the area by the orb, the area inside the O shape, and other regions where there are only two entry/exit squares.

Hope that gets you started.

No problem with # 1), 2) and 3). # 4) however, I find there is no way back to the lower right exit, because the door at 2,24 etc. has been closed and the tiles at 1,24 and 7,24 have already been dropped previously.
What am I not seeing?

Thanks for your reply disoriented!