Mind Jewel is a puzzle devised by
Alexander Polonsky. It consists of 12 pentagonal pyramids connected by an
elastic cord.
The puzzle pieces are blue, red, or
green.
The goal is:
Arrange the pyramids so that they form a
single closed shape. This means that the pieces are placed as if they were
lying on the surface of a dodecagon. The elastic passes through a slot on the
side of each pyramid, and you often choose yourself through which edge of the
pentagon the elastic enters ...
USD 15.00