With this puzzle, each piece is entangled with the other two pieces. Its organic design without a grip is interesting. Since there are combinations other than those pictured, we hope you enjoy trial and error. Designed by puzzle writer Kyoo Wong of Hong Kong. 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.