The foundational rules of the Three Boxes Puzzle are: Your goal in the Blue Prince Parlor Game is to figure out which box contains the Gems, not which box is true – there can be more than one ...

In my game, I got the following clues: The blue box said, "All three boxes contain gems ... so grab that to open the box. Grab the gems, and then you can move on to the next room and puzzle.

It’s a spacious lounge consisting of a few pieces of furniture and three boxes of different ... To solve the Parlor Game puzzle, you’ll need to open the box that contains the prize.