Haha, that distant draggable. Once I found that, and discovered that B could walk on certain tiles he normally can't, the rest flowed naturally. It was enjoyable.
Spoiler: QR Alternative https://mekoramaforum.com/threads/sandor-images-in-comments.965/page-23 Maybe some issues in the mech, I haven't found a suitable block for the mechanism, maybe this is an alternative.
@Block builder Wow, looks like you're lucky, I tried it again a few times and found the mechanism inside didn't push the ball.
Some very neat features that required some exploration, trial &error and restarts on my part until the the solution revealed itself. Very enjoyable level. Thx.