"There’s a whole of wisdom wrapped up in this Oskar Deventer masterpiece. The three pieces can be separated and then joined again in their original form. What’s special about this puzzle is that it can be solved three different ways, depending on which of the three pieces is chosen as the middle piece. Solving this puzzle requires an especially subtle kind of working of the pieces, the kind that often leaves the victim struggling in frustration. Keeping in mind its chainlike behavior and using your feeling to your advantage is the best way to attack this. The key word is 'chain.'"
-Nob Yoshigahara, 2002
Hanayama is known worldwide for challenging puzzles and quality manufacturing. Can you take the pieces apart, then put them back together again? Hanayama cast metal brain teasers have 6 levels of difficulty, and each puzzle is Mensa-rated. Level 6 puzzles are considered very difficult by most puzzlers.