Good morning,
brell !
This morning I suddenly realized that room 16703 is still not wat we both want it to be. On the picture Jack came in from the left while the blocks were gold and is now standing on top of the silver blocks, ready to climb the ladder and start a thorough visit of the room above.
But there are still two problems!
1. Jack may also leave the room immediately to the left and continue somewhere completely else.
2. Jack may do the visit above, but after returning to room 16703 he may go right, change the blocks back to gold and leave the room by retracing his steps.
Both things don't lead to Jack-stucks but they are unwanted because leading to a guessing feeling or bringing up ideas of (large) backtracking.
Solution.
Part 1. In room 16703 the G/S-lever will be replaced by a (red) press button forcing the blocks to become and stay normal (= silver) and the most left silver block will be removed. The way out of this section will start with a ladder down in the bottom left corner of the room above. That is left of a closed grey door that must be opened with a lever that is behind the red door that had to be opened first! In room 16703 the one-way ladder down will replace the blue floating bricks in the upper left corner.
Part 2. It will be absolutely necessary to make changes concerning the blue key. Because of the one-way issue it will have serious consequences when leaving the section without a key. Assume Jack opened the red door with the rainbow key, did not pick up the blue key and took the one-way ladder down, I think he is forced to do large backtracking into the purple area to change the blocks back to gold to be able to get the 'forgotten' blue key. (What is right now the same when Jack jumps down to left from the silver blocks without a key.)
:o
Edited
Even after the changes there is more to think about. Take the same room 16703 with Jack on top of the silver blocks. There he makes a wrong movement and dies. When he came from the room above he reappears on the ladder and is able to climb up again. No harm. But what if he hadn't been up yet and reappears at the left entrance?
If Jack has a rainbow key, he is at the very beginning of the blue area and has a lot of good alternatives. But he also may have a red key (a wrong or no key is also possible but a playing mistake). Then there are two possibilities. The red door in room 16704 is still closed and is Jack's new and only target. Or that red door is already opened.
In that case the blocks have to be changed to gold again. And that means backtracking. Maybe a lot.
Or I do much more changes like:
- moving the G/S-press button to the room above;
- replacing the silver blocks with solid blue bricks.