And Back Again

I just came to this level after it was recommended so highly in Discord and I loved it!
Very creative, looks good, well planned path, packing some surprises, no tricks-just logic, simply put, awesome!
Now I'll have to keep digging for jewels like this. Thanks!

I wonder what is

Spoiler

what is keeping B downstairs. Something that R pushes? And how deep that hole is?

@mossieurclo I don't know personally, but I'd guess that R knocks a ball that completes the path for B. And that hole / pit probably at least three levels.

@D.S.Masters Makes sense indeed.

Someday I'm going to import one of these cards in the web creation page and study the making of such great levels. Is that doable, if ethically questionable?