A 3x3x3 cube consists of 27 single cubelets. Polycubes can be made of from 1 to 5 cubelets. This gives a huge number of ways for polycubes to be made into the full cube so the challenge to a player will never be exhausted. The highly condensed coding method in the 52 page code book is an effective presentation of the huge complexity. The game will develop three dimensional spatial skills useful for Analytical Geometry, Organic Chemistry, Mechanical Engineering, Architecture, Biology and so many other fields.