The Soma Cube just may be the most famous packing problem ever devised! Invented in 1933 by Piet Hein, this mind-blowing puzzle consists of 7 nonidentical pieces that must be packed into a 3x3x3 cube. All 7 pieces must be used, and unlike most puzzles (which usually have only one right answer), there are up to 240 ways to build the Soma C