Dee ihe na-esote paragraf a - Eduard Prandstetter nwetara ihe ịga nke ọma kachasị na ọrụ egwuregwu ya na 1976 na 1978 mgbe ọ meriri ugboro abụọ na Czechoslovak Chess Championship. N'afọ 1985 na Taxco o sonyere na asọmpi World Chess Championship Interzonal Tournament
ebe ọ nọ n'ọkwa nke iri na anọ.