Ambassadeurs : Arkell, Keith C (86x), Khenkin, Igor (63x), Schmalz, Peter (60x), Zelcic, Robert (47x), Homont, René de (42x), Fernandez, Javier Horacio (36x), Salzmann, Stefan (35x), Celan, Melissa (33x)
4.Nf3 — 19.7% (3559 parties)
Ambassadeurs : Salzmann, Stefan (28x), Schmalz, Peter (22x), Woodard, Daniel S. (20x), Tkachenko, Igor (18x), Baumgartner, Ulrich (17x), Rüfenacht, Matthias (14x), Khenkin, Igor (14x), Homont, René de (13x)
4.c3 — 16.8% (3033 parties)
Ambassadeurs : Lessard, Claude (10x), Tocklin, Tomi (9x), Arkell, Keith C (9x), Bodnaruk, Anastasia (7x), Lalic, Susan K (6x), Fuchs, Judith (6x), Danada, Ondrej (6x), Ramaswamy, Kishor (5x)
4.c4 — 2.7% (485 parties)
Ambassadeurs : Arkell, Keith C (14x), Marusenko, Petr (7x), Khenkin, Igor (7x), Domingo, Jordi (7x), Tomazini, Zan (6x), Doran, Chris (6x), Erdogdu, Aziz Mert (4x), Haslinger, Stewart G (4x)
1955 — Spassky, Boris V. vs Kotov, Alexander — 0-1 — Moskou ch-URS 1958 — Redolfi, Argentino Rodolfo vs Puiggros, Guillermo — 1-0 — Buenos Aires ARG 1961 — Tal, Aleksandr S vs Botwinnik — 1/2-1/2 — Moskau 1961 — Tal, Mikhail vs Botvinnik, Mikhail — 1/2-1/2 — Moscow RUS 1961 — Tal, Aleksandr S vs Botvinnik, Mikhail — 1-0 — Moskou wch-m
4.Nf3 — 19.7% (3559 parties)
1976 — Castro, Oscar vs Wade, Robert G — 1/2-1/2 — Cienfuegos City CUB 1978 — Estrada, Antonio vs Blondet, Luis — 1/2-1/2 — Mexico City MEX 1989 — Hebelka, Milos vs Machala, Vladislav — 1-0 — Bratislava SVK 1991 — Furhoff, Johan vs Karlsson, Mats — 0-1 — Sweden 1992 — Arbouche, Muhamed vs Markotic, Gordan — 0-1 — Tortosa
4.c3 — 16.8% (3033 parties)
1950 — Milev, Zdravko vs Benderev, Yurij — 1-0 — Sofia BUL 1963 — Boutteville, Cesar vs Thiellement, Andre — 1-0 — Paris FRA 1964 — Blackstone, John vs Schmitt, James — 1/2-1/2 — Fresno, CA 1964 — Ujtumen, Tudev vs Kavalek, Lubomir — 0-1 — Krakow POL 1967 — Adail Gondim, Jose vs Vasconcellos, Fernando O — 0-1 — Sao Paulo BRA
4.c4 — 2.7% (485 parties)
1955 — Azarbekov, Sulaiman vs Tal, Mikhail — 0-1 — USSR 1983 — Ringwald Peter vs Simon, Christopher — 1-0 — ? 1997 — Gietl, Thomas vs Menacher, Manfred — 0-1 — GER 2000 — Vanek, Tomas vs Machala, Vladislav — 0-1 — Czechia 2000 — Brochet, Philippe vs Miton, Kamil — 1/2-1/2 — Cannes op Festival des Jeux
Botvinnik, Mikhail — 4 parties
Carlsen, Magnus — 4 parties
Tal, Mikhail — 3 parties
Ju, Wenjun — 3 parties
Hou, Yifan — 3 parties
Karpov, Anatoly — 2 parties
Kramnik, Vladimir — 1 partie
Ding, Liren — 1 partie
1958 — Redolfi, Argentino Rodolfo vs Puiggros, Guillermo — 1-0 — Buenos Aires ARG
1961 — Tal, Aleksandr S vs Botwinnik — 1/2-1/2 — Moskau
1961 — Tal, Mikhail vs Botvinnik, Mikhail — 1/2-1/2 — Moscow RUS
1961 — Tal, Aleksandr S vs Botvinnik, Mikhail — 1-0 — Moskou wch-m
1978 — Estrada, Antonio vs Blondet, Luis — 1/2-1/2 — Mexico City MEX
1989 — Hebelka, Milos vs Machala, Vladislav — 1-0 — Bratislava SVK
1991 — Furhoff, Johan vs Karlsson, Mats — 0-1 — Sweden
1992 — Arbouche, Muhamed vs Markotic, Gordan — 0-1 — Tortosa
1963 — Boutteville, Cesar vs Thiellement, Andre — 1-0 — Paris FRA
1964 — Blackstone, John vs Schmitt, James — 1/2-1/2 — Fresno, CA
1964 — Ujtumen, Tudev vs Kavalek, Lubomir — 0-1 — Krakow POL
1967 — Adail Gondim, Jose vs Vasconcellos, Fernando O — 0-1 — Sao Paulo BRA
1983 — Ringwald Peter vs Simon, Christopher — 1-0 — ?
1997 — Gietl, Thomas vs Menacher, Manfred — 0-1 — GER
2000 — Vanek, Tomas vs Machala, Vladislav — 0-1 — Czechia
2000 — Brochet, Philippe vs Miton, Kamil — 1/2-1/2 — Cannes op Festival des Jeux