Cube Dissection, Robert Reid, Three-Piece Puzzle, Liu Hui Cube Extension

####Cube Dissection, Robert Reid, Three-Piece Zigzag Puzzle, Liu Hui Cube Extension

Yet another way to dissect a cube into three congruent pieces. It takes three copies to make a cube. It is simple to assemble with a *gentle twist*. There are four sizes provided. The 50mm^3 one is recommended.

This dissection can be credited to Robert Reid in recent history (see URL below). To me, it seems to be an extension of the cube-dissecting method of Liu Hui (263 AD, Chinese mathematician), who