Hi iMaterialise fans,
Hollow 2x2x2 is a 2x2x2 Rubik’s Cube that has been hollowed out. The puzzle has a rails mechanism that keeps the parts together. One corner acts like a core surrounded by seven corners. There are nine hidden edge rails and three hidden centers.
Watch the YouTube video.
Buy the puzzle at my iMaterialise Shop.
Read more at the Twisty Puzzles Forum.
Check out the photos below.
Enjoy!
Oskar