Red-XIII wrote:
2N2W: I can kill the northern roach using the 2 trapdoors (gaining one move) but I see no way to kill the southern roach.
Of course, since this is a secret room, there is a sneaky trick involved here. There's a reason why there are two "
goal roaches"
in the same room, rather than this being split up into two separate rooms.
Nested hints here:
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For the south roach, the standard spacing you would get from Beethro at (18, 17) and roach at (26, 17) is 2 squares short of being correct. The trapdoors only let you gain 1 square, so they won't be enough.
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There's no way to gain enough distance on a single roach so that e.g. it's at (30, 17) instead, because you can't both get the roach to the east column and get so far ahead of it that you can get past the wall at (25, 17). So the basis is correct and you do really need to gain 2 squares.
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So, if the trapdoors won't work, there is one more mobile element in the room that could help.
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The northwest roach all by itself might not be enough, because if the roaches stack up
in movement order, then the second roach only contributes one more tile...
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...so if you move around the room, carefully manipulating them such that they can form a line that is out of order, with the second roach in front and the first roach in back, a gap will appear, giving you the two extra tiles you need. The dropped trapdoors might help you with storing a roach so you can get it out later.
1W: harder than I thought, but overall neat room. Are the checkpoints placement intended? I did not use them since I always moved diagonally to reach the tunnels.
They're intended. It's so that you don't step on the checkpoints multiple times as you move diagonally past them. This does mean that they're only accessible if the roach is in a stable spot, but the room is short enough that I don't think this is a big problem.
3N1W: I have no idea how to tackle this room.
This is a pretty unusual room of the type I don't think I've seen much of anywhere else, so you might need to come up with tactics from scratch.
A general rule of thumb for all the rooms in this series, which don't matter too much for the other two but matters a lot for this one, is that if there are two roaches in one column, then e.g. you can move all the roaches in the entire puzzle to the right, by letting one roach out of that column and letting everything move over a little.
A few non-nested tips in no particular order:
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It may be helpful to think of this room in terms of "the distance between the westmost and eastmost roach" - this will start out small but the room contains a way to gradually increase it. The crumbly walls don't give you enough freedom to get it all at once, so you'll need a repeatable process.
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Since the crumbly walls are to the east of center, I prefer to pile up several roaches in the westmost column, and treat the eastmost roach as the one I want to get far away from the west column.
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Breaking one center wall is enough to move a roach farther away from a group by one column. However, it's also enough to move a roach that's part of the group closer back _in_ to the group, so that it can contribute to being part of the traffic jam again.
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In my solution, I only break one of the center walls, do several iterations, and then break the other center wall at the very end when I'm ready to get one last column.
Let me know if you want a demo for this, a moving picture might be worth a thousand words here.
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Quick links to my stuff (in case you forgot where it was):
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[Last edited by Chaco at 03-28-2025 02:01 PM]