Heinz Schaufelberger vs Sergio Mariotti - Praia da Rocha Zonal 1969.10.??
Heinz Schaufelberger vs Sergio Mariotti
Praia da Rocha Zonal Praia da Rocha POR round 2 1969.10.??
Sicilian Defense: Chekhover Variation 0-1
Heinz Schaufelberger vs Sergio Mariotti
Praia da Rocha Zonal Praia da Rocha POR round 2 1969.10.??
Sicilian Defense: Chekhover Variation 0-1
Sergio Mariotti vs Suat Atalik
Chess Olympiad Dubai UAE round 7 1986.11.22
Catalan Opening: Open Defense 1/2-1/2