Ambassadeurs : Matlak, Marek (33x), Evtushenko, Sergey Aleksandrovich (27x), Flear, Glenn C (27x), Trabert, Bettina (25x), Kuijf, Marinus (20x), Schuett, Wilhelm (20x), Tregubov, Pavel V. (19x), Tanti, Joseph G (18x)
4…f5 — 11.6% (2908 parties)
Ambassadeurs : Piankov, Evgenij (16x), Contreras Poblete, Juan Antonio (10x), Buchnicek, Petr (10x), Jovanovic, Bratislav M (9x), ? (5x), Guliev, Sarhan (5x), Martinez Nava, Jose Jorge (4x), Pieper, Harald (4x)
4…Nd7 — 2.5% (624 parties)
Ambassadeurs : Czibulka, Zoltan Dr. (8x), Bogdanovich, Grigory (7x), Giurgiu, Nicolas (6x), Kinzel, Anton (5x), Gerasimova, Olga (5x), Giurgiu, Nicolas T (4x), Aloni, Itzchak (3x), Shcherbashin, Roman (3x)
1950 — Miguel, Nahuel vs Kotov, Alexander — 1/2-1/2 — Budapest HUN 1950 — Skrovina, Milan vs Nipgaus — 1-0 — ? 1950 — Smyslov, Vasily vs Bronstein, David I — 1-0 — Budapest HUN 1950 — Tarasov, Vitaly vs Chistiakov, Alexander — 1/2-1/2 — Kiev UKR 1950 — Vajda, Arpad vs Szily, Jozsef — 1/2-1/2 — Budapest HUN
4…dxc4 — 38.7% (9725 parties)
1950 — Almiron, Martin Alejandro vs Kongshavn, Harry — 1-0 — Dubrovnik olm 1950 — Spanjaard, Eduard vs Cortlever, Nico — 1-0 — Amsterdam NED 1950 — Hoenig, Heinrich vs Mertins, Klaus — 0-1 — Bretten 1950 — Rossetto, Hector vs Kongshavn, Harry — 1-0 — Dubrovnik olm 1950 — Spanjaard, Eduard vs Cortlever, Nico — 1-0 — Amsterdam NED
4…f5 — 11.6% (2908 parties)
1950 — Neikirkh, Oleg vs Piskov, Kamen Penev — 1/2-1/2 — Sofia BUL 1950 — CHUKS, Smith Daniel vs Steckel, William H — 1-0 — San Francisco, CA USA 1951 — Trifunovic, Petar vs Puc, Stojan — 1/2-1/2 — Sarajevo BIH 1951 — Koberl, Ferenc vs Eigler, Ferenc — 1-0 — Hungary ch 1952 — Rabar, Braslav vs Krzisnik, Zvonko — 1-0 — Belgrade SRB
4…Nd7 — 2.5% (624 parties)
1951 — Teschner, Rudolf vs Nurnberg, F. — 1-0 — Augsburg GER 1951 — Budrich, Edmund vs Wassmuth G — 1-0 — ? 1951 — Gruenfeld, Ernst vs Kinzel, Anton — 1/2-1/2 — Vienna AUT 1952 — Beni, Alfred vs Kinzel, Anton — 1/2-1/2 — Wenen 1952 — Adhrit Mandal vs Ortega, Ramon Rodrigo Leao — 1-0 — Helsinki olm
Kasparov, Garry — 7 parties
Kramnik, Vladimir — 6 parties
Karpov, Anatoly — 5 parties
Botvinnik, Mikhail — 3 parties
Anand, Viswanathan — 2 parties
Carlsen, Magnus — 2 parties
Ding, Liren — 2 parties
Gukesh D — 2 parties
Ju, Wenjun — 1 partie
1950 — Skrovina, Milan vs Nipgaus — 1-0 — ?
1950 — Smyslov, Vasily vs Bronstein, David I — 1-0 — Budapest HUN
1950 — Tarasov, Vitaly vs Chistiakov, Alexander — 1/2-1/2 — Kiev UKR
1950 — Vajda, Arpad vs Szily, Jozsef — 1/2-1/2 — Budapest HUN
1950 — Spanjaard, Eduard vs Cortlever, Nico — 1-0 — Amsterdam NED
1950 — Hoenig, Heinrich vs Mertins, Klaus — 0-1 — Bretten
1950 — Rossetto, Hector vs Kongshavn, Harry — 1-0 — Dubrovnik olm
1950 — Spanjaard, Eduard vs Cortlever, Nico — 1-0 — Amsterdam NED
1950 — CHUKS, Smith Daniel vs Steckel, William H — 1-0 — San Francisco, CA USA
1951 — Trifunovic, Petar vs Puc, Stojan — 1/2-1/2 — Sarajevo BIH
1951 — Koberl, Ferenc vs Eigler, Ferenc — 1-0 — Hungary ch
1952 — Rabar, Braslav vs Krzisnik, Zvonko — 1-0 — Belgrade SRB
1951 — Budrich, Edmund vs Wassmuth G — 1-0 — ?
1951 — Gruenfeld, Ernst vs Kinzel, Anton — 1/2-1/2 — Vienna AUT
1952 — Beni, Alfred vs Kinzel, Anton — 1/2-1/2 — Wenen
1952 — Adhrit Mandal vs Ortega, Ramon Rodrigo Leao — 1-0 — Helsinki olm