<prompt> Bhala okuqhubekayo kwalesi sigaba - URonald Câmara wayeyilungu leqembu lamajaji loMkhandlu Wamazwe Ngamazwe Wamazwe Ngamazwe ka-1972  <response>: futhi ngo-1986 Chess Olympiads, futhi umphathi omkhulu we World Junior Chess Championship ngo-1978. WayenguSekela likaMongameli weBrazil Chess Confederation 1970-1976 kanye noMongameli weFIDE South American Zone 1974-1978. 