Puzzle Description:

QR code - if you have a QR-capable mobile phone, scan this

#1: Mark (mark.jeronimus) on Oct 8, 2010 [SPOILER]

This one was easy for me because I have the same code on my HD. I used it when I got stuck and it turned out I made a mistake.

You made a slight mistake when drawing it though, c27r30 and c28r30 should be black. Also, because there is already significant damage in the code (because of the logo), it is not known how much extra damage you can do to it to make it a single solution. Luckily, there is a lot of room. It uses 30% error correcting capability, and out of the 859 bits, 125 are damaged, which is <15%. Just don't mess with the pixels that are not data (see http://en.wikipedia.org/wiki/QR_Code).

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