@cimarronline B has gone from one side to another, gone up to the top, pushed the ball over, then I can't see where to go but back to the start. Hmmm...
@Chris Hester Here's a video: Solution video (B got stuck a moment when a piece didn't fall quite right, but was able to continue)
impressive use of movable elements, enjoyed the passage. I had to manually further optimize the qr-code.
@cimarronline fantastic! I was going to ask for a video solution. Spoiler Now I see I completely missed the bit at the top where B is pushed by the blocks to move the mechanism over. Here's what I did instead: Spoiler I fell off the middle of the metal when it started moving left slowly. This can happen if you try to walk left. You can also fall off the middle on the other side and land next to the win block! I then got stuck at the bottom due to a gap. I just tried it again and now I can get further!
Magnificent mechanism that at first try seems to move by sensor but then I figured out b had to use the one on the other side...a couple of really neat ways to get to the win ... Spoiler the ball riding one inside the mech was my fave but the auto fall was pretty smooth too !