<prompt> Qedela umusho olandelayo: URonald Câmara wayeyilungu leqembu lamajaji omncintiswano we-  <response>: Ngo-1986 Chess Olympiads, futhi umphathi omkhulu weWorld Junior Chess Championship ngo-1978. WayenguSekela likaMongameli weBrazil Chess Confederation 1970-1976 kanye noMongameli weFIDE South American Zone 1974-1978. 