Susan Polgar
At 15, she was the top-ranked woman player in the world. She was the Women's World Chess Champion from 1996 to 1999. In October 2005 Polgar had a FIDE rating of 2577, making her the second-ranked woman in the world at the time, after her sister Judit Polgár. She has been inactive and has not played in official competition since 2004.