<prompt> Pedzisa mutsara unotevera: Penrose akatambura nokushushikana, uye akadonha pa  <response>: Mitambo yeOlympic ya1970 iri pakati pemutambo wakaoma. Somugumisiro, akaenderera mberi kunyorerana chess, kwaakabudirira, achiwana zita reInternational Master IMC muna 1980 uye zita guru GMC muna 1983. Akatungamirira nyika yake kukunda mu9th Correspondence Olympiad 19821987. 