Among all the amazing Defcon competitions, the Capture the Flag contest reigns supreme. Psifertex will examine some of the history of CTF, focusing on the reign of <del>terror</del> pwnage that was the Kenshoto CTF from 2005-2008. The talk will both be technical (including rapid-fire discussions of technical challenges and solutions), and entertaining (expect guest appearances from ninjas and pirates alike). Come hear not only what skills are necessary to succeed at CTF, but how to have the most fun while doing it.