 Nyora kupfuurira kweiyi ndima - Dzimwe nguva zvinhu zvinoshanda zvinorangarirwa. Muna 1977 Viktor Korchnoi neyaimbova World Champion Tigran Petrosian vakatamba mitambo gumi nembiri yequarter-fainari Candidates Match kuti pakupedzisira vaone uyo anokwikwidza kumakwikwi eWorld Championship ya1978. Pashure pemitambo gumi nerimwe Korchnoi akanga achitungamirira nepfungwa imwe, saka aingoda chete dhiza mumutambo wokupedzisira kuti afambire mberi kumasemi-fainari. Korchnoi, saVatema, akanga achikunda mutambo uyu asi akapa dhivha pashure pokufamba 40. Maererano naEdmar Mednis, chakanga chiri chinhu chakanaka uye chinoshanda chokuita. Korchnoi akapfuurira kunetsa pasina kubudirira Anatoly Karpov nokuda kweWorld Championship. 