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GCHQ Challenge Solution Explained

Posted by timothy on from the oh-well-now-that's-just-obvious dept.

First time accepted submitter DrDevil writes "The British spy agency GCHQ recently published a puzzle at canyoucrackit.co.uk (as featured on Slashdot), now just a few days later an academic at the University of Greenwich in England has posted a full video explanation of the puzzle. The puzzle has three stages and is not at all simple — likely to challenge even the best computer science graduates."

1 of 107 comments (clear)

  1. Re:Opaque by Runaway1956 · · Score: -1, Flamebait

    I share your allergy, but I also have a more serious allergy. I am no person's "subject". I am a free man. No matter how the Brits argue the matter, no matter all the amendments etc to UK constitution, Brits remain subjects of some old woman in a castle. The only way that I would ever bow to the old girl, is if she first bowed to me. Figurehead or not, that "subject" thing would rub me raw, really, really fast.

    --
    "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br