High end

Spoiler: Hint 1

R has to enter into the right doors in the right order.

Spoiler: Hint 2

Look carefully for visual clues in the level.

How does that work? Good

Spoiler

code

level that makes you think, with limited open room for various interpretations.

Looks like a magic, thanks for hints and level
. Well done again.

@cpw @Block builder I am using a set of proximity sensors. B, R and the sensors have to be in particular positions for this to work. I have found some kind of pattern, but it is quite hard to use it in a playable level, as any additional motor or slider will disturb everything.

B too? Didn't do anything mindfully with him at the end.

@Block builder I meant initial positions.

Darned if I know how it works, and so far the only way I've found is to try every door, then go back to a specific one. I'll try it again later to figure out the proper order. As for the teleport...

OMG!!!
I can't believe what I saw!!!
I have no words for such effect. Amazing, incredible, great... SIX stars for you! @Martin Magni should see this... Thanks!

Very magical mechanism. I'm surprised that you can make it stable.

Bufff, I do not know how to create levels, I'm just a mekoaddicted player and yet I can appreciate that magical effect you've achieved ... Impressive, brilliant!!!

Very nice logic level. A little easy following the clues, but I wouldn't have known what to do without them...
And the trick is quite impressive. Thanks.

Finally got the pattern figured out (actually fairly easy), but I'm still amazed by the teleport.

One of these days, folks like you might want to think about teaching others how to build mechanisms such as this or "Yellow King", etc., even if it means revealing a few secrets. Something like "Cae14.1" by @Chuckthulu is easy enough to figure out, but the 'hidden' mechs like this or "Square one"... I have no freaking clue. Not that I've built any levels, but knowing how is nice.