The World Puzzle Designers' Forum, held in August 2000 in Los Angeles, was where I first met my close friend Oskar. This brain teaser is based on a disc based puzzle that he showed me at that time. Battling it out with this puzzle is like putting your mind to the test against one of the world's sharpest minds in Oskar. The idea to keep in mind here is "circle." -NOB 2001.
Hanayama's Disk Puzzle is a high quality cast metal brain teaser from inventor Oskar van Deventer
Discover how to separate these two interlocking pieces and then try to reassemble them!
Hanayama cast metal brain teasers have 6 levels of difficulty and each puzzle is Mensa-rated
Level 2 puzzles are considered fairly easy by most puzzlers