Dee ihe ga-aga n'ihu na paragraf a - N'afọ 1978, Ivona Jezierska were ọnọdụ nke ise na Polish Women's Chess Championship. Na mbido afọ 1980, ọ kwagara United States. Ivona Jezierska sonyere n'ọtụtụ US Women's Chess Championship. N'afọ 1995, Ivona Jezierska sonyere n'asọmpi ụmụnwaanyị n'egwuregwu Chess World Championship Interzonal Tournament
na Chişinău ebe e debere ya n'ọnọdụ 50.