Ambassadeurs : Kerr, Stephen G.R. (19x), B, Owen (18x), Matamoros Franco, Carlos S. (18x), Quinones Borda Jorge Victor (16x), Breitman, Nelson Rodrigues (15x), Suba, Mihai (15x), Pohjosmäki, Risto (11x), Foisor, Ovidiu-Doru (10x)
4.Nf3 — 22.8% (1655 parties)
Ambassadeurs : Golcman, Evgeny (9x), Brunello, Sabino (7x), Kouskoutis, Georgios-Alexandros (6x), Frömbgen, Andreas (6x), Hertneck, Gerald (6x), Schneider, Bernd (5x), Czech, Ludwig (4x), Lochte, Thomas (4x)
Ambassadeurs : Markowski, Tadeusz (9x), B, Owen (5x), Kemendi, Daniel (4x), Arjol Lopez, Daniel (3x), Thiel, Kay (3x), Cardoso, Radolfo Tan (2x), Sarapu, Ortvin (2x), Peterson, Andrejs (2x)
4.d3 — 2.5% (184 parties)
Ambassadeurs : Petran, Peter (4x), Sunye Neto, Jaime (2x), Bronstein, Luis Marcos (2x), Troyke, Christian (2x), Alvarez Lora, Amaury Antonio (2x), Collins, Richard (1x), Ford, M G. (1x), Ruban, Vadim (1x)
1951 — Bakonyi, Elek vs Szilagyi, Gyorgy Laszlo — 1-0 — Budapest HUN 1957 — Jaeger, Willy vs Behle, Karl-Willi — 1-0 — Bad Neuenahr GER 1958 — Bak, Istvan vs Kluger, Gyula — 1/2-1/2 — Budapest HUN 1961 — Baeyertz, RE. vs Sarapu, Ortvin — 0-1 — New Zealand ch 1966 — Rodriguez, Ruben vs Kavalek, Lubomir — 1/2-1/2 — Havana ol
4.Nf3 — 22.8% (1655 parties)
1957 — Benko, Pal vs Tal, Mikhail — 0-1 — Reykjavik ISL 1957 — Urseanu, Veniamin vs Alster, Ladislav — 0-1 — Ploiesti 1958 — Munoz, Francisco vs Martin Martinez, Pedro Jose — 1/2-1/2 — Pereira 1960 — Lopez Navarro, Fermin vs Saborido Carre, Rafael — 1-0 — Lugo 1960 — Lengyel, Levente vs Golz, Werner — 0-1 — It Bad Salzungen GER
4.Nc3 — 9.3% (672 parties)
1958 — Hilde Peterson vs Tal, Mikhail — 0-1 — Latvia ch 1958 — Peterson, Andrejs vs Tal, Mikhail — 0-1 — Soviet Union 1960 — Gusev, Nikolay N vs Vasiukov, Evgeni — 0-1 — Odessa UKR 1960 — Peterson, Andrejs vs Tsirtsenis — 1/2-1/2 — Riga LAT 1960 — Wexler, Bernardo vs Bazan, Osvaldo — 0-1 — Mar del Plata ARG
4.d3 — 2.5% (184 parties)
1957 — Bobekov, Radko vs Kadrev, Zdravko Minchev — 0-1 — Sofia BUL 1962 — Collins, Richard vs Ford, M G. — 1/2-1/2 — Southampton ENG 1965 — Hesse, Peter vs Brameyer, Hermann — 0-1 — Annaberg-Buchholz GER 1967 — Ruban, Vadim vs Vasiukov, Evgeni — 0-1 — Leningrad RUS 1970 — Kupka, Slavoj vs From, Sigfred — 1-0 — Kapfenberg etc
Anand, Viswanathan — 6 parties
Ding, Liren — 5 parties
Carlsen, Magnus — 4 parties
Kasparov, Garry — 3 parties
Gukesh D — 2 parties
Botvinnik, Mikhail — 1 partie
1957 — Jaeger, Willy vs Behle, Karl-Willi — 1-0 — Bad Neuenahr GER
1958 — Bak, Istvan vs Kluger, Gyula — 1/2-1/2 — Budapest HUN
1961 — Baeyertz, RE. vs Sarapu, Ortvin — 0-1 — New Zealand ch
1966 — Rodriguez, Ruben vs Kavalek, Lubomir — 1/2-1/2 — Havana ol
1957 — Urseanu, Veniamin vs Alster, Ladislav — 0-1 — Ploiesti
1958 — Munoz, Francisco vs Martin Martinez, Pedro Jose — 1/2-1/2 — Pereira
1960 — Lopez Navarro, Fermin vs Saborido Carre, Rafael — 1-0 — Lugo
1960 — Lengyel, Levente vs Golz, Werner — 0-1 — It Bad Salzungen GER
1958 — Peterson, Andrejs vs Tal, Mikhail — 0-1 — Soviet Union
1960 — Gusev, Nikolay N vs Vasiukov, Evgeni — 0-1 — Odessa UKR
1960 — Peterson, Andrejs vs Tsirtsenis — 1/2-1/2 — Riga LAT
1960 — Wexler, Bernardo vs Bazan, Osvaldo — 0-1 — Mar del Plata ARG
1962 — Collins, Richard vs Ford, M G. — 1/2-1/2 — Southampton ENG
1965 — Hesse, Peter vs Brameyer, Hermann — 0-1 — Annaberg-Buchholz GER
1967 — Ruban, Vadim vs Vasiukov, Evgeni — 0-1 — Leningrad RUS
1970 — Kupka, Slavoj vs From, Sigfred — 1-0 — Kapfenberg etc