Almost everybody knows the Rubik’s Cube. It is not only widely recognised as the best puzzle toy ever made, but it is also one of the best-sold toys worldwide. The Rubik’s Cube was patented in …
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Almost everybody knows the Rubik’s Cube. It is not only widely recognised as the best puzzle toy ever made, but it is also one of the best-sold toys worldwide. The Rubik’s Cube was patented in …