RotaCubes is a minimalistic twisty puzzle. It is an idea by Bram Cohen. The puzzle has three cubes that move around in a cage. Each of the cubes has three colors. The object of the puzzle is to move the cubes such that their colors match with the colors of the cage. When the ciubes move around through the cage, they change orientation. This makes the puzzle quite hard to solve. Related puzzles are Bram's Rocket and Bram's Black Hole.

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