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I was playing around and tried to reproduce some things out of the "Permutation Puzzles" book by Jamie Mulholland. The book is great. But just one thing I could not reproduce: the Example on top of page 237. Whatever I do, I see the corners moving cw and not ccw as in the book ist shown. Here...

Hi everyone, Few weeks ago I found an old cube in a big box of toys I keep ready for my grandchildren. I wondered wether I can solve the thing and searched for an instruction. The beginners method worked but it made me curious to understand what really happens, when I turn the faces of the...

Using sage I get the relults of the combining permutations in disjoint cycles notation. It looks like the following example: S48 = SymmetricGroup (48) R=S48(" (25 ,27 ,32 ,30)(26 ,29 ,31 ,28)(3 ,38 ,43 ,19)(5 ,36 ,45 ,21)(8 ,33 ,48 ,24) ") L=S48(" (9 ,11 ,16 ,14)(10 ,13 ,15 ,12)(1 ,17 ,41 ,40)(4...

Today I tried to make my MoYu3c silent and it works very well. So I recommend the following procedure. I like the MoYu3c and they are pretty cheap. They need some service for the start. First I had cleaned the parts and lubed with dry handsoap. This works well. I do not use silicon oil or oil...