Gregory Simon Koshnitsky vs Joao Mario Ribeiro - Tel Aviv ol (Men) fin-D 1964.11.18
Gregory Simon Koshnitsky vs Joao Mario Ribeiro Tel Aviv ol (Men) fin-D Tel Aviv ISR round 4 1964.11.18 King’s Indian Attack 1/2-1/2
Gregory Simon Koshnitsky vs Joao Mario Ribeiro Tel Aviv ol (Men) fin-D Tel Aviv ISR round 4 1964.11.18 King’s Indian Attack 1/2-1/2
Joao Mario Ribeiro vs Ernst Rojahn
13th olm final C Munich FRG round 1 1958.10.11
Amazon Attack: Siberian Attack 0-1