Ambassadeurs : Ghitescu, Theodor (6x), Gheorghiu, Florin (3x), Ivkov, Borislav (3x), Tringov, Georgi P (3x), ? (2x), Gufeld, Eduard (2x), Hindle, Owen M (2x), Pachman, Ludek (2x)
10.Qd2 — 21.7% (34 parties)
Ambassadeurs : Stein, Leonid (3x), Vranesic, Zvonko (2x), Thorvaldsson, Jonas (2x), Vukic, Milan (2x), De Coverly, Roger D (2x), Willemsen, Jos (1x), Rischbieth, Norman (1x), McCallion, J. (1x)
10.Bg5 — 14.0% (22 parties)
Ambassadeurs : Gheorghiu, Florin (3x), Aceros Rodriguez, Oscar Leonardo (1x), Jansson, Bengt (1x), Tringov, Georgi P (1x), Popov, Luben (1x), Bukic, Enver (1x), Kagan, Shimon (1x), Cortes Gheorghiu, Christian (1x)
Botvinnik, Mikhail — 1 partie Tal, Mikhail — 1 partie
Parties historiques
10.O-O — 63.1% (99 parties)
1963 — Spassky, Boris Vasily vs Gufeld, Eduard — 1-0 — URS 1963 — Spassky, Boris V. vs Gufeld, Eduard — 1-0 — Leningrad ch-URS 1964 — Liberzon, Vladimir M vs Anoshin, Gennadi N — 1-0 — ? 1964 — Pachman, Ludek vs Pietzsch, Wolfgang — 1-0 — Kecskemet HUN 1964 — Balcerowski, Witold vs Pietrusiak, Albin — 0-1 — Warsaw ch-POL
10.Qd2 — 21.7% (34 parties)
1963 — Pachman, Ludek vs Tal, Mikhail — 1/2-1/2 — Havana CUB 1964 — Vranesic, Zvonko vs Stein, Leonid — 0-1 — Amsterdam izt 1964 — Rometti, Barbatto vs Thorvaldsson, Jonas — 1/2-1/2 — Tel Aviv ISR 1964 — Vranesic, Zvonko vs Stein, Leonid — 0-1 — Amsterdam NED 1964 — Vranesic, Nikola vs Hernandez Stein, Dario Eduardo — 0-1 — Amsterdam NED
10.Bg5 — 14.0% (22 parties)
1964 — Aceros Rodriguez, Oscar Leonardo vs Jansson, Bengt — 1-0 — Tel Aviv ISR 1967 — Popov, Luben vs Bukic, Enver — 1/2-1/2 — Skopje MKD 1967 — Gheorghiu, Florin vs Kagan, Shimon — 1-0 — Winnipeg CAN 1968 — Gheorghiu, Florin vs Tringov, Georgi P — 1/2-1/2 — Bucharest ROU 1969 — Cortes Gheorghiu, Christian vs Gligoric, Sofija — 1/2-1/2 — Ljubljana
10.g4 — 0.6% (1 parties)
1964 — Pachman, Ludek vs Bilek, Istvan — 0-1 — Kecskemet HUN
Tal, Mikhail — 1 partie
1963 — Spassky, Boris V. vs Gufeld, Eduard — 1-0 — Leningrad ch-URS
1964 — Liberzon, Vladimir M vs Anoshin, Gennadi N — 1-0 — ?
1964 — Pachman, Ludek vs Pietzsch, Wolfgang — 1-0 — Kecskemet HUN
1964 — Balcerowski, Witold vs Pietrusiak, Albin — 0-1 — Warsaw ch-POL
1964 — Vranesic, Zvonko vs Stein, Leonid — 0-1 — Amsterdam izt
1964 — Rometti, Barbatto vs Thorvaldsson, Jonas — 1/2-1/2 — Tel Aviv ISR
1964 — Vranesic, Zvonko vs Stein, Leonid — 0-1 — Amsterdam NED
1964 — Vranesic, Nikola vs Hernandez Stein, Dario Eduardo — 0-1 — Amsterdam NED
1967 — Popov, Luben vs Bukic, Enver — 1/2-1/2 — Skopje MKD
1967 — Gheorghiu, Florin vs Kagan, Shimon — 1-0 — Winnipeg CAN
1968 — Gheorghiu, Florin vs Tringov, Georgi P — 1/2-1/2 — Bucharest ROU
1969 — Cortes Gheorghiu, Christian vs Gligoric, Sofija — 1/2-1/2 — Ljubljana