Alex Black Hole is based on a sliding-cube idea by Alex Polonsky. There are seven cubes around a sphere with grooves. The object is to scramble the puzzle by sliding the cubes, and then solve the puzzle.
Watch the
YouTube video Read at the
Shapeways Forum Read more at the
Twisty Puzzles Forum
Please
contact Oskar directly if you are interested in obtaining a fully colored and assembled sample of this puzzle.