Cast Trinity Hanayama is a brainteaser from writer Kyoo Wong of Hong Kong. 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. At a 6/6 difficulty, the Cast Trinity Hanayama is one the most challenging puzzles of all time! Can you take it apart? Can you assemble it again? No solution included!