arxiv_1401.3699v3.pdf

N/A

A NEW TOPOLOGICAL INVARIANT FOR THE “RUBIK’S MAGIC” PUZZLE MAURIZIO PAOLINI Abstract. We investigate two different invariants for the Rubik’s Magic puz- zle that can be used to prove the unreachability of many spatial configurations, one of these invariants, of topological type, is to our knowledge never been…

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