Rubik's Cube has just gone sadistic. The Roulette Wheel IQ Cube ($80), created by a Hong Kong company that apparently didn't think the world's most popular three-dimensional puzzle was difficult enough, bears a numbered, spinning dial on each of its six sides. Once the puzzle has been scrambled, it's only solved when each side of the cube is again a solid color and numerical order has been returned to each dial. Fortunately, because the manufacturer uses decals for the colors instead of paint, "it's just a couple of hours of peeling and resticking" before most of us beat this puzzle the old-fashioned way.
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