Sole Survivor

A Sole Survivor is the title given to the winner of the game.

Qualifications
In order to be the Sole Survivor, the castaway must be not be removed from the game (either by being voted out, disqualified, voluntarily quitting or by forced evacuation by the moderators) - unless a twist returns them (e.g. Redemption Island) - until the Final Tribal Council (usually done during Day 39). Then, the castaway must get the most Jury votes among the finalists that also reached the Final Tribal Council, which usually consists of 2-3 castaways.