Tuhia he tomokanga mo tenei waahanga - I te tau 1990, ko Petra Krupková i wini i te mētara parahi i te Czech Youth Chess Championship i te roopu pakeke o te kotiro U18. I te tau 1992, i tohaina e ia te waahi 4 i te World Youth Chess Championship i te roopu pakeke o te kotiro U16. I te tau 1993, ko Petra Krupková te toa o te Czech Women's Chess Championship, engari i te tau i muri mai ka wikitoria ia i te mētara parahi i tenei whakataetae. I te tau 1995, i Polani, i tohaina e ia te waahi tuatahi me Monika Bobrowska i te whakataetae Zonal Women's World Chess Championship me te wikitoria i te tika ki te whai waahi ki te whakataetae Interzonal. I te tau 1995, i uru a Petra Krupková ki te Whakataetae Whakataetae Whakataetae o te Ao mo nga Wahine
i Chişinău i noho ai ki te tūranga tekau mā rima. I te tau 1996, i wini ia i te mētara parahi i te U20 European Junior Championship i Hungary.