Soma cube and 3×4×5 units. The Bedlam cube is a 4×4×4 sided cube puzzle consisting of twelve pentacubes and one tetracube. The Diabolical cube is a puzzle of six polycubes that can be assembled together to form a single 3×3×3 cube. Soma cube The Soma cube is a solid dissection puzzle invented by Piet Hein in 1933 during a lecture on quantum mechanics conducted by Werner Heisenberg. Its name is alleged to be derived from the fictitious drug "soma" consumed as a pastime by the establishment in Aldous Huxley's dystopic novel "Brave New World". Seven pieces made out of unit cubes must
Floppy Cube Floppy Cube The Floppy Cube is a cuboidal twisty puzzle in the style of the Rubik's Cube. It was originally invented by Katsuhiko Okamoto and mass-produced by Gentosha Toys, although several other companies have since mass-produced it as well. The Floppy Cube is essentially a 1x3x3 Rubik's Cube: it is made up of 9 identical cubic pieces arranged into a 1x3x3 cuboid. The puzzle consists of 4 corner pieces, 4 edge pieces and 1 centre piece. Each corner piece has four colours each, each edge piece has three colours each, while the centre piece has two colours (on the opposite