442 for the moment, now 434, 422 like Alazeh, now 418, 416, 414. Insane shortcut found ... to only save 4 steps, 410 now, 408, 406. 07/01/23 now 2 off and after another pipelining trick later, I managed to solve it, there are so many back and forth tricks here. Select the right blocks to push the exit and try to optimize every return path !
Came back to this level again today. Finally cleared it at 656 moves. I'm an absolute unit!
Edit: Went maniac 518 attempt 2.
Edit 2: 444! Level needs 3 more players. Hoping I can get sub 400.
424
414 Tied with the legendary duke6666