Mezue ahịrịokwu na-esonụ:
1987 World Championship okirikiri, ebe ọ ruru na njedebe nke ndị Candidates ndorondoro. Mgbe ọ gụsịrị akwụkwọ site na asọmpi Interzonal na Round-robin Candidates Tournament, o meriri egwuregwu megide Rafael Vaganian (6<unk>2), na Artur Yusupov (71⁄2<unk>61⁄2). Agbanyeghị, na njedebe ọ tufuru Anatoly Karpov, 31⁄2 <unk> 71⁄2. Ebe o meriri Karpov na Bugojno 1986, o chere na ọnọdụ ya tupu egwuregwu ahụ nwere nchekwube ma kọwaa mmeri ya dị ka "oké njọ".