The first "Six Finger Plan" used to backdoor another Houseguest
Since the beginning of the series, Houseguests came up with methods to eliminate potential threats to their own game; but, it wasn't before Nakomis Dedmon created the "Six Finger Plan" that backdooring another Houseguest became legendary—and now somewhat commonplace.
Nakomis' strategy required the following: a six-person alliance, a willingness by all alliance members to be placed on the block prior to the POV competition, and a clear target. Once she had her alliance's support, Nakomis proceeded with her plan by putting up two members.
Then, each of those members selected one of the two remaining people in the alliance to participate in the POV competition. When alliance member Drew Daniel won the POV, he used it to take himself off of the block, allowing Nakomis to replace him with her real target and nemesis, Jase Wirey!
To see the "Six Finger Plan" play out, watch Big Brother, Season 5 on CBS All Access.