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Our own Tomas Rokicki is at it again! — Parallax Forums

Our own Tomas Rokicki is at it again!

Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
edited 2010-08-13 23:01 in General Discussion
He and his team have now proven that no Rubik's Cube position requires more than 20 moves to solve :

Congrats to Tomas and his team!

-Phil

Comments

  • potatoheadpotatohead Posts: 10,261
    edited 2010-08-09 22:48
    Excellent!

    When these were the rage, I got below the 1:30 mark for random solves. 20 moves is amazing!

    Probably would have to spend a day on one of the things now. Was fun then though. We used to take them apart, smooth the edges and apply lubricants. Happy days.
  • Dr_AculaDr_Acula Posts: 5,484
    edited 2010-08-10 02:32
    Absolutely fascinating. When I was in grade 7 the Rubiks cube was all the rage and myself and three others memorised the book and went around solving everyone's cubes. I think we managed to get it down to 90 seconds or less. Great fun.

    Now, how many formulae do I need to remember to do it in 20 moves?
  • davejamesdavejames Posts: 4,047
    edited 2010-08-10 08:38
    ...I just used to peel off the colored stickies and rearrange them!

    DJ
  • LeonLeon Posts: 7,620
    edited 2010-08-11 08:24
    i've just seen this on the BBC News web site:

    http://www.bbc.co.uk/news/technology-10929159
  • GadgetmanGadgetman Posts: 2,436
    edited 2010-08-13 02:28
    So... He solved the 3x3x3, but...

    How many moves is needed to solve a 4x4x4 or 5x5x5 cube?

    Yes, they exist.
    They're also too fiddly to use the old 'disassembly/reassembly' standby.
    (Don't ask how I know... )
  • TubularTubular Posts: 4,718
    edited 2010-08-13 23:01
    It made the news and newspapers here in Oz to. #8'th most read, behind the hairdresser who has to give back 380,000 and the dead hedgehog that was painted over

    Great work, Tomas
    tomas2.jpg
    800 x 694 - 122K
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