×My thought is to push a roach to the west edge, then keep moving up and down to keep it on the orthosquares. Eventually I let it leave that column so that it hits the west pressure plate.

However, this means I have very limited opportunities to turn, making it hard to manage roaches and especially to keep the queen from running away. I'm not even sure I'm on the right track, but this is the only idea I have right now.

Either way, I could use some advice.

×You're right about how restrictive your idea is.

×Perhaps a different element should step on the west plate.

×
Holds:
Nanfro Budkin's First Dungeon,
The Puzzle Catacombs
Graphical Mods:
Power Station (AE)

×Don't forget that the doors don't all have to be open at the end of the same turn as long as they are all open when the briar grows.

×Also, the queen doesn't step on any of the small plates herself.

×
Holds:
Nanfro Budkin's First Dungeon,
The Puzzle Catacombs
Graphical Mods:
Power Station (AE)

×The queen not being on one of the small plates does not imply she remains on the large plate.