Castle Tour

No tricks required (as always).

Spoiler: General Hint

The proximity sensor in the tower goes up only if both B and R are near it.

Spoiler: Puzzle Hint

Every ball has a different purpose. But one ball must not be pushed. Creating a path may destroy another one.

Spoiler: Solution Video

@Block builder Thanks for rating

@huijiuggbf Thanks for rating

@Master Author I created this level two weeks ago. You published your level some days ago. I didn't know anything about your level when I created mine. Thanks for rating

@Master Author This is the proof: I sent a photo of this level on 2 Sep. to @chemi on Discord, while you published yours on 4 Sep.

Spoiler: Proof

@gmacpro I understand the difficulty about organizing a plan, also because there aren't many levels about proximity sensors. Metal blocks prevent ToA. This sensor works only if both B and R are close to it. Thanks for the comment

@Br0K3N nuce rewiew. I want more

@Br0K3N Keep doing rewiews like this

Roses are red,but I'm not blue.
What you said is totally true