Latest Posts(1) See All Blue Prince: How To Solve The Parlor Game (Three Boxes Puzzle) I just got this one, and I have 2 wind up keys. First box i tried was black and it was empty, checked here before using the second, so I went with the white box and that is where the gems were. I'm with ya, I can't make sense of this one. pottsie800 replied to Dakota, 0Upvoted 0Replies View