This series are designed by Patricio Sidgman Rivera. The ideas are come from the original pillowed 2x4x6 and Tony Fisher cube. Making the previous pillowed 2x4x6 flat and changing the orientation by 45 degree, we have the 2x4x6 Fisher. The variations, Fisher Brick Wall & 2x4x6 Fisher Spiral, are really beautiful. They are all challenging and fun to play.

.1 x Calvin's Puzzle SIDGMAN 2x4x6 Fisher Spiral Cube