She holds the FIDE titles of International Master (IM) and Woman Grandmaster (WGM).

She and her two sisters were part of an educational experiment carried out by their father László Polgár, in an attempt to prove that children could make exceptional achievements if trained in specialist subjects from a very early age—László's thesis being that "geniuses are made, not born".

[4] Polgar finished second to Helgi Grétarsson at the World Junior Chess Championship 1994 in Matinhos, Brazil.

[citation needed] On February 7, 1999, Polgar married the Israeli Grandmaster Yona Kosashvili and moved to Israel.

She and her family lived in Toronto, Ontario, Canada for a while so her husband could pursue his studies and medical specialty.