Ambassadeurs : Oprea, Erik (6x), Pogosian, Vladimir (5x), Semenova, Lidia K (4x), Feller, Alice (4x), Boettcher, Christian, Dr. (4x), Sukhareva, Valentina (4x), Pelaez, Hernan (4x), Bognar, Csaba Dr. (3x)
3.f4 — 12.5% (329 parties)
Ambassadeurs : Barsciauskas, Gintautas (7x), Eskandary, Jahya (6x), Pereyra, Darío (4x), Ditt, Egon (2x), Crabbendam, Hans (2x), Laursen, Lau (2x), Rossolimo, Nicolas (2x), Walter, Philippe (2x)
1951 — Mangini, Jose Henrique de Mello vs Siqueira, Alexandre Carneiro — 1-0 — Fortaleza BRA 1952 — Ban Juach vs Szabo - Thomka, Daniel — 1/2-1/2 — Hungary ch 1952 — Koberl, Ferenc vs Ban Juach — 1-0 — Hungary ch 1953 — Tal, Mikhail vs Avotinsh — 1-0 — Riga LAT 1953 — Heemsoth, Hermann vs Hahn, Eduard — 0-1 — Berlin GER
3.Nc3 — 24.4% (645 parties)
1951 — Pilnik, Herman vs Grob, Henry — 1-0 — Madrid ESP 1958 — Dominguez, Cristobal vs Monostori, Lajos — 0-1 — Buenos Aires ARG 1962 — Blackstone, John vs Schutt, Raymond W. — 1-0 — No. CA 1964 — Pader, Douglas vs Blackstone, John — 1-0 — Baltimore, MD USA 1971 — Arlauskas, Romanas vs Vassilaropoulos, Nicholas — 1-0 — Adelaide AUS
3.f4 — 12.5% (329 parties)
1954 — Griesmann, Marcel J vs Mariette, Jacques — 1-0 — ? 1956 — Ditt, Egon vs Crabbendam, Hans — 1-0 — Beverwijk-B 1956 — Ditt, Egon vs Crabbendam, Hans — 1-0 — Hoogovens-B Beverwijk NED 1959 — OBrien, Erik Michael vs Wollman, G. — 1-0 — Petaluma 1960 — From, Sigfred vs Laursen, Lau — 1-0 — Denmark ch corr
3.c4 — 6.9% (183 parties)
1956 — Durao, Hugo vs Jovanovic, Vasilije — 1-0 — Beverwijk NED 1960 — Dominguez, Cristobal vs Reinhardt, Enrique — 0-1 — Buenos Aires ch-ARG 1963 — Jesso, Kurt vs Nergard, Ole-Kristian — 0-1 — ? 1966 — Garcia R., Luis Ernesto vs Pelikán, Jiří — 1-0 — Buenos Aires ARG 1966 — Garcia, Eder Raimundo vs Pelikan, Jorge — 1-0 — Buenos Aires ARG
1952 — Ban Juach vs Szabo - Thomka, Daniel — 1/2-1/2 — Hungary ch
1952 — Koberl, Ferenc vs Ban Juach — 1-0 — Hungary ch
1953 — Tal, Mikhail vs Avotinsh — 1-0 — Riga LAT
1953 — Heemsoth, Hermann vs Hahn, Eduard — 0-1 — Berlin GER
1958 — Dominguez, Cristobal vs Monostori, Lajos — 0-1 — Buenos Aires ARG
1962 — Blackstone, John vs Schutt, Raymond W. — 1-0 — No. CA
1964 — Pader, Douglas vs Blackstone, John — 1-0 — Baltimore, MD USA
1971 — Arlauskas, Romanas vs Vassilaropoulos, Nicholas — 1-0 — Adelaide AUS
1956 — Ditt, Egon vs Crabbendam, Hans — 1-0 — Beverwijk-B
1956 — Ditt, Egon vs Crabbendam, Hans — 1-0 — Hoogovens-B Beverwijk NED
1959 — OBrien, Erik Michael vs Wollman, G. — 1-0 — Petaluma
1960 — From, Sigfred vs Laursen, Lau — 1-0 — Denmark ch corr
1960 — Dominguez, Cristobal vs Reinhardt, Enrique — 0-1 — Buenos Aires ch-ARG
1963 — Jesso, Kurt vs Nergard, Ole-Kristian — 0-1 — ?
1966 — Garcia R., Luis Ernesto vs Pelikán, Jiří — 1-0 — Buenos Aires ARG
1966 — Garcia, Eder Raimundo vs Pelikan, Jorge — 1-0 — Buenos Aires ARG