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video thumbnail 18:12
Cracking the 4D Rubik's Cube with simple 3D tricks

2016-06-17

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video thumbnail 13:34
Can you solve THE Klein Bottle Rubik's cube?

2016-10-08

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video thumbnail 14:33
The 15 puzzle - solving the unsolvable 19th century Rubik's square

2016-02-12

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