Ambassadeurs : Ilincic, Zlatko (21x), Hardwick, Martin E (13x), Hapala, Michaela (9x), Schmidt, Roland (7x), Bousios, Hristos (5x), Skembris, Spyridon (3x), Hofman, Ron (3x), Jones, Scott C. (3x)
4.Nf3 — 9.7% (194 parties)
Ambassadeurs : Bousios, Hristos (5x), Garces Trujillo, Luis Javier (5x), Bosboom, Manuel (4x), Bagnato, Mathis (2x), Babychuk, Vladimir (2x), Yashavishree N (2x), Letelier Martner, Rene (1x), Amaro, Lucas Ibrair (1x)
1950 — Letelier Martner, Rene vs Donner, Jan-Hein — 0-1 — Venice ITA 1951 — Tartakower, Savielly vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Birmingham ENG 1952 — Lasker, Emanuel vs Cobo Arteaga, Eldis — 1/2-1/2 — ? 1952 — Lasker, Emanuel vs Gonzalez, Juan Carlos — 0-1 — ? 1952 — Lasker, Edward vs Gligoric, Sofija — 0-1 — Havana CUB
4.e3 — 17.1% (343 parties)
1951 — Rathai, Volker vs Kirchhammer, Rudolf — 0-1 — Schwerin GER 1966 — Barbosa, Harper vs Caracciolo, E. — 1-0 — Sunnyvale 1977 — Leonhardt, Wolfgang vs Power, PJ — 1/2-1/2 — Auckland NZL 1979 — Miles, Anthony J vs Ribli, Zoltan — 0-1 — Riga LAT 1981 — Lukov, Valentin vs Lukacs, Peter — 1/2-1/2 — Pamporovo
4.Nf3 — 9.7% (194 parties)
1950 — Lasker, Edward vs Camarena, Joaquin — 1-0 — Mexico City MEX 1951 — Borodin, Vladimir vs O'Kelly de Galway, Alberic — 0-1 — Brussels BEL 1952 — Letelier Martner, Rene vs Amaro, Lucas Ibrair — 1-0 — Mar del Plata ARG 1958 — Pacsay, Laszlo vs Purevzhav, S — 1/2-1/2 — Varna BUL 1961 — Filchev, Rusko vs Dimitrov Iliev, Ilia — 1/2-1/2 — Sofia BUL
4.cxd5 — 7.0% (140 parties)
1952 — Lasker, Emanuel vs Aleman Munoz Jorge Luis — 1-0 — Havana CUB 1952 — Pomar Salamanca, Arturo vs Jimenez Zerquera, Eleazar — 1-0 — Havana CUB 1960 — Isaksson, Sten vs Atjashev, P. — 1/2-1/2 — corr FS 1962 — Chipalambwe Lloyd vs Kottnauer, Cenek — 0-1 — Ilford Congress 1981 — Jauregui, Carlos vs Baragar, Fletcher — 1-0 — Montreal zt
1951 — Tartakower, Savielly vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Birmingham ENG
1952 — Lasker, Emanuel vs Cobo Arteaga, Eldis — 1/2-1/2 — ?
1952 — Lasker, Emanuel vs Gonzalez, Juan Carlos — 0-1 — ?
1952 — Lasker, Edward vs Gligoric, Sofija — 0-1 — Havana CUB
1966 — Barbosa, Harper vs Caracciolo, E. — 1-0 — Sunnyvale
1977 — Leonhardt, Wolfgang vs Power, PJ — 1/2-1/2 — Auckland NZL
1979 — Miles, Anthony J vs Ribli, Zoltan — 0-1 — Riga LAT
1981 — Lukov, Valentin vs Lukacs, Peter — 1/2-1/2 — Pamporovo
1951 — Borodin, Vladimir vs O'Kelly de Galway, Alberic — 0-1 — Brussels BEL
1952 — Letelier Martner, Rene vs Amaro, Lucas Ibrair — 1-0 — Mar del Plata ARG
1958 — Pacsay, Laszlo vs Purevzhav, S — 1/2-1/2 — Varna BUL
1961 — Filchev, Rusko vs Dimitrov Iliev, Ilia — 1/2-1/2 — Sofia BUL
1952 — Pomar Salamanca, Arturo vs Jimenez Zerquera, Eleazar — 1-0 — Havana CUB
1960 — Isaksson, Sten vs Atjashev, P. — 1/2-1/2 — corr FS
1962 — Chipalambwe Lloyd vs Kottnauer, Cenek — 0-1 — Ilford Congress
1981 — Jauregui, Carlos vs Baragar, Fletcher — 1-0 — Montreal zt