2010/03/11

XKCD Puzzle Example

Here was one of the more interesting puzzles from the book...

UATAQANUUNG QSICHINGNKUCHAANG CHSICHINGSICHINGNG SICHINGULUUNGUUNG CHAANGATAQANCHATAQANNG SICHINGULUUNGUUNG HSICHINGULUUNGATAQANM-SICHINGULUUNGSICHINGQSICHINGN NUATAQAN

I studied this one for a while.  You see lots of repeating sequences of letters (UATAQAN, SICHING, UUNG, etc).  I figured it might be a substitution cipher where groups of letters map to a single letter.  Like "UUNG" is "E", and QAN is "Y", or something.  I didn't get anywhere with that.

Someone else solved it.  Here's the answer.

The solution uses Aleut numbers.  Like, from the indigenous people of the Aleutian Islands.  How someone recognized this, I'll never know.  But lots of people know lots of crazy stuff.

http://www.unilang.org/wiki/index.php/Translations:_Numbers_-_Unangam_tunuu

Someone had the bright idea to find the Aleut numbers in the text, and substitute in the numeral.  So UATAQANUUNG reduces to U1UUNG (since ATAQAN = 1).

Likewise reducing the entire thing you get this:

U1UUNG Q4NKU5 CH44NG 47UUNG 51CH1NG 47UUNG H471M-474Q4N NU1

Now it's popular for the cool kids online to substitute numbers for letters sometimes.  1 is "L" and 4's kind of look like A's, 7's for T's, etc.  It's sometimes referred to as "elite speak", or just "leet" for short, or even 1337 if you're truly 1337.  (It's also popular to make fun of the cool kids online by imitating them, tongue-in-cheek).

If you're familiar with this kind of lingo, then it's pretty easy to read the above as:
ULUUNG QANKUS CHAANG ATUUNG SICHING ATUUNG HATIM-ATAQAN NUL

In Aleut, this is 7 3 5 6 4 6 11 nul

And translating into hex (all the other keys are in hex), you get this:  735664B0.

Simple, right?

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