The challenge of Hanayama Cylinder is to separate it into five pieces. At first glance it seems simple — just unscrew it — but there is no external way to unscrew it!
The challenge of Hanayama Twist is to separate it into two pieces. Use the grooves on the surface to find the correct path to solve this elegant metal puzzle.
Two bolts and four nuts — at first glance it looks like a pile of spare parts, but looks deceive. This puzzle contains a clever trick preventing you from taking it apart.
This two-level Flower Maze (Blumenlaby) has a fascinating obstacle pattern. Guide the ball through many openings across both levels of the puzzle to get it out.