<prompt> Nyorai kupfuurira kweiyi ndima - Ronald Câmara akanga ari mutezo weboka revatongi re1972  <response>: uye 1986 Chess Olympiads, uye mutongi mukuru weWorld Junior Chess Championship muna 1978. Akanga ari Mutevedzeri weMutungamiri weBrazilian Chess Confederation 1970-1976 uye Mutungamiri weFIDE South American Zone 1974-1978. 