In December 1991, Polgár achieved the grandmaster title by winning the Hungarian National Championship, at the time the youngest ever at 15 years, 5 months to have achieved the title. This beat Fischer's record by a month. This made her the first woman to be the youngest-ever grandmaster. Hungary, one of the strongest chess-playing countries, had all but one of their strongest players participate in that year's championship, as only Zoltán Ribli was missing. Going into the last round, Polgár needed only a draw to achieve the GM title, but she won her game against GM Tibor Tolnai to finish first, with six points in nine games. Judit's sister Susan had earned the GM title in January 1991.