Click a thumbnail to see its larger version and description.
A two layer (per)face turning Dürer's Solid.
This puzzle is not the first to use that shape, in fact, it is the second, but this is the first that is not a shape-mod.
The reason why the professor version was created before a standard one is because all of the previous puzzles of the inventor (James) were order 1 (one layer), and he wanted to create a higher order puzzle.
His (understandable) decision has improved the puzzle unexpectedly, because of the extra layer, the inner layers are less bandaged and it allow more scrambling.
Thank you to the following people for their assistance in helping collect the information on this page: polymaker.
This puzzle can be found in collections of these members:
Found a mistake or something missing? Edit it yourself
or contact the moderator