Polgár’s daughters all became excellent chess players, but Sophia, the least successful of the three, who became the sixth-best woman player in the world, quit playing and went on to study painting and interior design and to focus on being a housewife and mother. Judit has been described as "without a doubt, the best woman chess player the world has ever seen."[1] As of 2008, she had been "the world’s highest ranked female chess player for nearly 20 years."[2] Susan, who became second-best woman chess player in the world, was, at age 17, the first woman ever to qualify for what was then called the 'Men's World Championship',[dubious ] but the world chess federation, FIDE, would not allow her to participate.[5][better source needed]