Hanayama Labyrinth Metal 3D Brain Teaser Puzzle The objective of this two-piece puzzle is simple: Remove both rings and put them back together. It’s not as easy as it looks. A nub on each end of ...

When 2D puzzles are no longer exciting, 3D brain teasers are the way. These handheld puzzles require unlocking several interconnected geometric pieces, inviting logical thinking and spatial ...