Stewart Coffin has been
the master designer of polyhedral puzzles since the 1970s and, until
relatively recently, the only maker of them.
Based on the geometry
of the rhombic tricontahedron he first made his Jupiter in
1971. It consisted of 12 identically shaped pieces each consisting
of 5 triangular sticks glued together. Using exotic hardwoods he
combined pattern matching problems into a beautiful interlocking
In 1978 he produced Saturn
in which there were 6 different shaped pieces (2 of each).
This made the assembly much more complex.
In 2000 he created The
Sphinx with 12 different pieces which have to be assembled in
the correct order in unique positions. This makes it exceptionally