Difficulty Level 5 out of 6 on the Hanayama scale.
The puzzle is to take the ring off the cast metal flower. If you can do it then you must try to put it back on again.
The grooves engraved in the two rotating boards are called "logarithmic spirals." These two grooves always cross at right angles, and a square hole is formed at their intersection. The goal of this puzzle is to remove the helix ring that goes through that hole.
The inspiration of this puzzle is the morning glory. The puzzle was designed to look like a bud that comes into bloom with twining tendrils. The original concept dates back to 1990, but it has been enhanced with the addition of several tricky features.
The theme of this puzzle is "Flower." (C)Akio Yamamoto 2009Size: Presented in a view window box which is 75mm x 115mm x 45mm. NEWS FLASH All our Hanayama puzzles come packaged with a printed solution. Not offered as standard by other sellers.