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His tournament victories include Hastings Challengers 1966, Slater Challenge Southend 1968, Johannesburg 1973, Woolacombe 1973, Capablanca Memorial (Master Group) 1974, Alicante 1977, Sydney 1979, Dortmund 1980, Barcelona 1980, Lloyds Bank Masters 1981, Adelaide 1983 and La Valletta 1985.
She played in five World Chess Olympiads, playing first board for the Brazilian team each time: in Skopje 1972, Medellín 1974, Buenos Aires 1976, La Valletta 1980, and Luzern 1982.