October 6, 2008 If you’re one of those people who shows-off at parties by solving a Rubik’s Cube in under two minutes, the Rubik’s Mirror Blocks Puzzle might just stop you in your tracks. Also known as Hidetoshi Takeji's Bump Cube, the puzzle challenges its user based on geometry rather than by matching color sequences.
To solve the Bump Cube you must order 27 blocks of nine different sizes into a neat and tidy cube. Unlike the original Rubik’s Cube, you can’t just pull the stickers off this one and pretend you’re a genius (or pull the entire thing apart as some frustrated Rubik's tragics have been known to do) as all the stickers have the same mirrored silver.
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The YouTube clip below shows how it works.
Available in Japan, Hidetoshi Takeji's Bump Cube costs around USD$20.