In this puzzle, each piece is entangled with the other two pieces. Hong Kong's puzzle writer Kyoo Wong is the designer. Wong seems to have a sense of humor, stating, "An organic design without a grip is fun. Since there are possible combinations other than the solution pictured, I hope you enjoy trial and error!" 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 extremely difficult by most puzzlers. Details: Includes 1 puzzle For 1 player Level 6 For ages 12 and up