Dhameystir weedha soo socota: 1990, Petra Krupková waxay ku guuleysatay bilada naxaasta ah horyaalka Czechoslovak Youth Chess ee kooxda da'da gabdhaha ee U18. Sannadkii 1992, waxay wadaagtay kaalinta 4-aad ee Horyaalka Cayaaraha Dhalinyarada Adduunka ee da'da gabdhaha ee U16. Sannadkii 1993, Petra Krupková waxay ku guuleysatay Horyaalka Czech ee Haweenka, laakiin sannad ka dib waxay ku guuleysatay billad naxaas ah tartankan. Sannadkii 1995, Poland, waxay kaalinta koowaad la wadaagtay Monika Bobrowska tartankii Gobolka ee Horyaalka Kubadda Cagta Haweenka Adduunka waxayna ku guuleysatay inay kaqeyb gasho tartan Interzonal ah. Sannadkii 1995-kii, Petra Krupková waxay ka qayb gashay
Horyaalka Haweenka Adduunka ee Tartanka Iskuxidhka ee Chişinău halkaas oo lagu qiimeeyay kaalinta 15-aad. Sannadkii 1996, waxay ku guuleysatay bilada naxaasta ah U20 European Junior Championship ee Hungary.