<prompt> Ngwala tšwetšopele ya serapa se - Orestes Rodríguez Vargas yo a belegwego ka la 4 Julae 1943 ke Peruvian Grandmaster GM 1978, yo a emetšego Spain go tloga ka 1982, makga a mahlano mofenyi wa Peruvian Chess Championship 1968, 1969, 1970, 1971, 1972, Chess Olympiad motho yo a thopilego sefoka sa silibera 1978  <response>: , sefoka sa Pan American Chess Championship 1970. 