The Hanayama Cast Ripple is a difficult puzzle designed by Kyoo Wong. As always the premise is simple, take apart the three pieces and then put them back together. Of course the reality is a lot harder, the disassembly is the easy part, putting them back together again is the real challenge! An attractive little pocket puzzle the Cast Ripple was inspired by the smooth movement of water. Rated 5 out of 6 on the Hanayama difficulty scale.