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Alex Black Hole
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From one corner it looks like a 2x2x2 but has only 7 cubies of which only one can be moved at a time. While being moved every cubie is rotated in a distinct way.

This puzzle is based on an idea by Alex Polonsky who showed Oskar a new design with seven cubes tumbling in an unusual fashion inside an exoskeleton. Mr. Polonsky gave Oskar the permission to reuse the movement, but came up with a different design using an endoskeleton.

The result is a 3D sliding puzzle where seven cubes turn around a sphere. Because of the cube reorientations similar to Bram's Black Hole, the puzzle was named Alex Black Hole. The mechanism is similar to PantaCube.



Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann, Brandon Enright, Jack Lieberman.

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