25th aniversary cube
Puzzle made for the 25th anniversary of the cube.
Good for speedcubing after lubricating.
The first 4x4x4 with circles. It exposes the theoretical inner 2x2x2.
DaYan Gem I
An edge-turning hexahedron transformed into the shape of a truncated octahedron which is an archimedean solid.
An attractive little puzzle, possibly related to the legendary Rubik's Cheeze.