12-03-2023, 12:17 PM
Found a possible JS in the red section:
Let's say that Jack arrives with a blue key and instantly goes up the long ladder. He arrives in room 16493, opens the blue door and gets the first green key. He goes back down the pole and then decides to go up again via the falling bricks in 16892. He continues up to 16492 and uses his only green key in that room to get to the uppermost leftside lever in 16493.
Now he has no green key to use in 16891 and no way (as far as I can see) to reach the other green key in 16493 as the grey door in the lower left corner is closed.
Let's say that Jack arrives with a blue key and instantly goes up the long ladder. He arrives in room 16493, opens the blue door and gets the first green key. He goes back down the pole and then decides to go up again via the falling bricks in 16892. He continues up to 16492 and uses his only green key in that room to get to the uppermost leftside lever in 16493.
Now he has no green key to use in 16891 and no way (as far as I can see) to reach the other green key in 16493 as the grey door in the lower left corner is closed.