Ambassadeurs : Donner, Jan-Hein (10x), Zilberberg, Alik (9x), Wade, Robert G (7x), Khodos, German (6x), Polugaevsky, Lev (6x), Unzicker, Ferdinand, Dr. (5x), Efimov, Kondrat (5x), Deze, Anton (5x)
6…Nc6 — 23.2% (528 parties)
Ambassadeurs : ROBERT WINCH (6x), Salem, A.R. Saleh (5x), Aghasaryan, Robert (4x), González Barcina, Francisco-José (4x), Lehmann, Heinz (3x), Hofmann, Thomas (3x), Juksta, Karolis (3x), Tyulenko, Yuri Viktorovich (3x)
6…d6 — 12.6% (288 parties)
Ambassadeurs : Posedaru, Bogdan (4x), Haygarth, Michael J (3x), Gutman, Lev (3x), Zilberberg, Alik (2x), Hempson, Peter W (2x), Burgalat, Francisco J (2x), Chapman, Roger (2x), Hubert, Ralf (2x)
Tal, Mikhail — 3 parties Botvinnik, Mikhail — 3 parties Smyslov, Vladimir — 2 parties Karpov, Anatoly — 2 parties Carlsen, Magnus — 1 partie
Parties historiques
6…d5 — 46.9% (1069 parties)
1950 — Castillo Bermudez, Manuel vs Donner, Jan-Hein — 1/2-1/2 — Venice ITA 1950 — Steiner, Herman vs Donner, Jan-Hein — 1/2-1/2 — Venice ITA 1950 — Steven, George A vs Vasu KP — 1-0 — Santa Barbara, CA 1950 — Castillo, Manuel vs Donner, Jan-Hein — 1/2-1/2 — Venice ITA 1950 — Zapata Vinces, Mario vs Kramer, Haije — 1-0 — Dubrovnik olm
6…Nc6 — 23.2% (528 parties)
1951 — Bondarevsky, Igor vs Estrin, Yakov — 0-1 — Ivanovo 1953 — Ojanen, Kaarle S vs Shocron, Ruben — 1/2-1/2 — Mar del Plata ARG 1955 — Novak, Zbynek vs Kuhn, Alena — 1-0 — Brno ch CZE sf 1956 — Lehmann, Heinz vs Heinrich, Georg — 1-0 — Aachen GER 1956 — Jauregui, Carlos vs Noradounghian, Georges — 1/2-1/2 — Paris FRA
6…d6 — 12.6% (288 parties)
1956 — Starck, Bodo vs Schlieder, Rolf — 1-0 — Zittau 1958 — Mileika, Janis vs Darznieks, Artur — 0-1 — Riga LAT 1959 — Bialas, Wolfram vs Behle, Karl-Willi — 1-0 — Minden 1961 — Lazzarini, Decio vs Mendes, Silvio Luiz Teixeira — 1-0 — Vitoria 1961 — Damjanovic, Mato vs Rabar, Braslav — 0-1 — Zagreb CRO
6…O-O — 8.2% (187 parties)
1957 — Popov, Luben vs Valchanov, Mihail — 1-0 — Sofia BUL 1959 — Schweber, Samuel vs Rossetto, Hector — 1/2-1/2 — Quilmes 1959 — Aadhitha Karikalan vs Djaja, Dragutin — 1-0 — Belgrade SRB 1961 — Khasin, Abram vs Cherepkov, Alexander V — 1-0 — Moscow RUS 1962 — Schweber, Samuel vs Incutto, Carlos — 1/2-1/2 — Buenos Aires ARG
Botvinnik, Mikhail — 3 parties
Smyslov, Vladimir — 2 parties
Karpov, Anatoly — 2 parties
Carlsen, Magnus — 1 partie
1950 — Steiner, Herman vs Donner, Jan-Hein — 1/2-1/2 — Venice ITA
1950 — Steven, George A vs Vasu KP — 1-0 — Santa Barbara, CA
1950 — Castillo, Manuel vs Donner, Jan-Hein — 1/2-1/2 — Venice ITA
1950 — Zapata Vinces, Mario vs Kramer, Haije — 1-0 — Dubrovnik olm
1953 — Ojanen, Kaarle S vs Shocron, Ruben — 1/2-1/2 — Mar del Plata ARG
1955 — Novak, Zbynek vs Kuhn, Alena — 1-0 — Brno ch CZE sf
1956 — Lehmann, Heinz vs Heinrich, Georg — 1-0 — Aachen GER
1956 — Jauregui, Carlos vs Noradounghian, Georges — 1/2-1/2 — Paris FRA
1958 — Mileika, Janis vs Darznieks, Artur — 0-1 — Riga LAT
1959 — Bialas, Wolfram vs Behle, Karl-Willi — 1-0 — Minden
1961 — Lazzarini, Decio vs Mendes, Silvio Luiz Teixeira — 1-0 — Vitoria
1961 — Damjanovic, Mato vs Rabar, Braslav — 0-1 — Zagreb CRO
1959 — Schweber, Samuel vs Rossetto, Hector — 1/2-1/2 — Quilmes
1959 — Aadhitha Karikalan vs Djaja, Dragutin — 1-0 — Belgrade SRB
1961 — Khasin, Abram vs Cherepkov, Alexander V — 1-0 — Moscow RUS
1962 — Schweber, Samuel vs Incutto, Carlos — 1/2-1/2 — Buenos Aires ARG