I would assume they get together with a couple friends and each person searches a section. 1 person could do all the searching but it would take a little bit longer. The easiest way is having your computer do the comparing. I don't see why TNT would have a problem with it as they allow people to create programs to solve shapeshifter. The petpage of one of those people that always scores 100 talks about her program she made to solve it. BTW I used to post the answers here but for some reason they didn't want me to post it for everyone to see. They wanted to keep it atleast level 1+ yet I didn't feel like spamming in order to increase my post count so that I could be level 1. level-i-private-chat-f29/mystery-pic-t16377.html When that became too much of a pain, I stopped sharing. I guess times have changed and the mystery picture answers are okay to be shared. I'll continue to post the answer on my geocities page and another forum and from there it can leak out to other sites.
THE ANSWERS TO EVERY MYSTERY PIC, CAN BE FOUND HERE : http://www.geocities.com/nungryscpro/index.htm THE SITE UPDATES WITH THE ANSWER EVERY WEEK PRETTY CLOSE TO THE RELEASE TIME.