The object is simple, first disassemble the parts, then reassemble to starting position. Easier said then done. A quarter of this cake has been cut away showing three identical layers inside. This puzzle looks simple but it is very ingenious.

Designed by Bram Cohen for Hanayama of Japan.

Hanayama is a Japanese toy company formed in 1972. They are best known for their series of cast zinc disassembly puzzles, which include reproductions of older designs, and new puzzles by Oskar van Deventer and Akio Yamamoto.