Plato's Secret

Eduard Bakalar's Polyhedral Packing Puzzle.

Pack 4 Tetrahedra, 4 Cubes, 12 Octohedra, and 1 Icosohedron into the Dodecahedral frame and fit 12 disks into the pentagonal faces.

This great challenge was invented and made by Eduard Bakalar, psychologist and one of the Czech Republics leading metagrobologists.

It assembles into a very beautiful object about 24 centimeters in diameter.

Sadly Eduard died in February 2010 aged 75 but his puzzles continue.