<prompt> Bhala ukuqhubeka kwalesi sigaba - U-Orestes Rodríguez Vargas owazalwa ngoJulayi 4, 1943 unguMnumzane Omkhulu wasePeru GM 1978, omele iSpain kusukela ngo-1982, onqobe amahlandla amahlanu ePeruvian Chess Championship 1968, 1969, 1970, 1971, 1972, onqobe indondo yesiliva ye-Chess Olympiad 1978  <response>: , owawina indondo yePan American Chess Championship 1970. 