Ambassadeurs : Kozak, Adam (7x), Urkedal, Frode Olav Olsen (6x), Tang, Andrew (6x), Collado Barbas, Laura (5x), Martinovici, Ilia (5x), Van Foreest, Lucas (5x), Kumar, Sanjit S (5x), Finegold, Benjamin (4x)
5.a3 — 30.0% (865 parties)
Ambassadeurs : Kopasov, Evgeny (4x), Dreev, Aleksey (4x), Dan, Teodor (4x), Tomecek, Jan (3x), Stimpel, Franz (3x), Schandorff, Lars (3x), Docx, Stefan (3x), Khademalsharieh, Sarasadat (3x)
5.Bg5 — 13.8% (398 parties)
Ambassadeurs : Hoang, Thanh Trang (3x), Stefaniak, Christian (3x), Forintos, Gyozo V (2x), Vegh, Endre (2x), Heyken, Enno (2x), Bohm, Hans (2x), Thorsteinsson, Thorsteinn (2x), Grabara, Manfred (2x)
Karpov, Anatoly — 3 parties Alekhine, Alexander — 2 parties Ding, Liren — 2 parties Euwe, Max — 1 partie Smyslov, Vladimir — 1 partie
Parties historiques
5.e4 — 42.9% (1238 parties)
1915 — Alekhine, Alexander vs Zubarev, Nikolay — 1-0 — Moscow Moscow RUS 1925 — Davidson, Jacques vs Colle, Edgar — 0-1 — NLD-Belgium ch 1925 — Opocensky, Karel vs Nimzowitsch, Aron — 0-1 — ? 1925 — Opocensky, Karel vs Nimzowitsch, Aron — 0-1 — Marienbad CZE 1926 — Mueller, Hans vs Matisons, Hermanis — 1/2-1/2 — Bardejov
5.a3 — 30.0% (865 parties)
1938 — Ahumada Lagos, Andres Ignacio vs Secchi, Adriano — 0-1 — Cordoba ch 1948 — Poschel, Paul vs Suraci, A. — 1-0 — South Fallsburg ch-USA 1956 — Start, Laura Ethel Amelia vs Maylam, Terence Ian — 0-1 — Hastings ENG 1973 — Adan Merino, Daniel vs Cordovil, Caio Eduardo B Reis — 1-0 — Palma de Majorca ESP 1976 — Whitt, Anthony vs Mantia, Tony — 0-1 — Dayton, OH USA
5.Bg5 — 13.8% (398 parties)
1932 — Merkel Solomon M vs Viner William Samuel — 0-1 — Sydney AUS 1932 — Von Hennig, Heinrich vs Rotenstein, Simon — 1/2-1/2 — Berlin GER 1943 — Petrik, Timofei vs Vasicek, Martin — 1/2-1/2 — Zlin CZE 1967 — Esparrago, Antonio vs Senabre, Juan Vicente — 0-1 — Buenos Aires ARG 1969 — Pelikan, Anna vs Diano, Agustin — 1-0 — Mar del Plata ARG
5.Nf3 — 8.4% (241 parties)
1928 — Pokorny, Amos vs Engel, Jindrich — 1-0 — Trencianske Teplice SVK 1956 — Ekstein, Natan vs Laes, Heino R — 0-1 — corr 1967 — Jepson, Fred vs Berry, Jonathan — 0-1 — Victoria CAN 1980 — Cabrera Herrera, Mario vs Baragar, Fletcher — 1/2-1/2 — Mexico City MEX 1983 — Samuelsson, Fride vs Kirppo, Ronny — 1/2-1/2 — Sweden
Alekhine, Alexander — 2 parties
Ding, Liren — 2 parties
Euwe, Max — 1 partie
Smyslov, Vladimir — 1 partie
1925 — Davidson, Jacques vs Colle, Edgar — 0-1 — NLD-Belgium ch
1925 — Opocensky, Karel vs Nimzowitsch, Aron — 0-1 — ?
1925 — Opocensky, Karel vs Nimzowitsch, Aron — 0-1 — Marienbad CZE
1926 — Mueller, Hans vs Matisons, Hermanis — 1/2-1/2 — Bardejov
1948 — Poschel, Paul vs Suraci, A. — 1-0 — South Fallsburg ch-USA
1956 — Start, Laura Ethel Amelia vs Maylam, Terence Ian — 0-1 — Hastings ENG
1973 — Adan Merino, Daniel vs Cordovil, Caio Eduardo B Reis — 1-0 — Palma de Majorca ESP
1976 — Whitt, Anthony vs Mantia, Tony — 0-1 — Dayton, OH USA
1932 — Von Hennig, Heinrich vs Rotenstein, Simon — 1/2-1/2 — Berlin GER
1943 — Petrik, Timofei vs Vasicek, Martin — 1/2-1/2 — Zlin CZE
1967 — Esparrago, Antonio vs Senabre, Juan Vicente — 0-1 — Buenos Aires ARG
1969 — Pelikan, Anna vs Diano, Agustin — 1-0 — Mar del Plata ARG
1956 — Ekstein, Natan vs Laes, Heino R — 0-1 — corr
1967 — Jepson, Fred vs Berry, Jonathan — 0-1 — Victoria CAN
1980 — Cabrera Herrera, Mario vs Baragar, Fletcher — 1/2-1/2 — Mexico City MEX
1983 — Samuelsson, Fride vs Kirppo, Ronny — 1/2-1/2 — Sweden