E04t — Open (1961)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Nc6 6.O-O Rb8
Les coups candidats
Ambassadeurs : Ksieski, Zbigniew (7x), Gleizerov, Evgeny (7x), Jirka, Jiri (7x), Ulybin, Mikhail (6x), Raetsky, Alexander (6x), Yuffa, Daniil (6x), Miton, Kamil (5x), Sosonko, Gennadi (4x)
7.e3 — 22.5% (376 parties)
Ambassadeurs : Kozul, Zdenko (9x), Roiz, Michael (5x), Kelecevic, Nedeljko (4x), Todorovic, Goran M (3x), ? (3x), Isaly, Sultan (3x), Andrews, Graham (3x), Aleksandrov, Viktor A. (3x)
7.a4 — 22.4% (375 parties)
Ambassadeurs : Inkiov, Ventzislav (5x), Chekletsov, Ilya (4x), Stoyanov, Bozhidar Ivanov (2x), Ivanov, Sergey (2x), Krasenkow, Michal (2x), Gleizerov, Evgeny (2x), Dgebuadze, Alexandre (2x), Unander, Matts (2x)
7.Bg5 — 5.1% (86 parties)
Ambassadeurs : Gurevich, Dmitry (2x), Ibarra Chami, Luis Fernando (2x), Nguyen, Ngoc Truong Son (2x), Bronstein, David I (1x), Estrin, Yakov (1x), Adams, Michael (1x), Zilberstein, Valery I (1x), Babushkin, Eduard (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Nc3 7.e3 7.a4 7.Bg5
<1800 57 33% 19% 32% 7%
1800-2200 491 33% 19% 31% 3%
2200-2600 1021 43% 25% 19% 6%
2600+ 34 59% 24% 3% 6%
Évolution par décennie (% des parties)
Décennie N parties 7.Nc3 7.e3 7.a4 7.Bg5
1950s 2 100%
1960s 1 100%
1970s 2 100%
1980s 28 71% 29%
1990s 232 50% 19% 26% 1%
2000s 428 51% 22% 19% 2%
2010s 641 35% 24% 22% 8%
2020s 339 26% 24% 25% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Nc3 35% 26% ▼ -9.5%
7.e3 24% 24% +0.3%
7.a4 22% 25% ▲ +2.6%
7.Bg5 8% 6% ▼ -1.3%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 3 parties
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
7.Nc3 — 40.2% (672 parties)
1952 — Klaman, Konstantin Mikhailovich vs Rovner, Dmitry — 1-0 — Leningrad RUS
1954 — Ragozin, Viacheslav vs Kopylov, Nazar — 1-0 — Leningrad ch22-SU sf
1973 — Knaak, Rainer vs Taimanov, Mark — 0-1 — Bucharest ROU
1974 — Begovac, Josip vs Raicevic, Vladimir — 0-1 — Sombor
1984 — Petursson, Margeir vs Lechtynsky, Jiri — 0-1 — Smederevska Palanka
7.e3 — 22.5% (376 parties)
1990 — Krasenkow, Michal vs Kelecevic, Nedeljko — 1-0 — Wattens
1990 — Priehoda, Vitezslav vs Zlatilov, Ivailo — 1/2-1/2 — Wattens
1990 — Urban, Klaudiusz vs Ivanov, Sergey — 0-1 — POL-chT Bydgoszcz POL
1991 — Summermatter, Daniel vs Costa, Gian Luca — 1/2-1/2 — Chiasso
1991 — Savchenko, Stanislav vs Todorovic, Goran M — 1/2-1/2 — Vienna AUT
7.a4 — 22.4% (375 parties)
1983 — Trotsenko, Dmitriy M. vs Ivanov, Sergey — 0-1 — Erevan ARM
1983 — Inkiov, Ventzislav vs Van der Wiel, John T.H. — 1/2-1/2 — Plovdiv etc
1985 — Liebert, Heinz vs Estrin, Yakov — 1/2-1/2 — Prague CZE
1987 — Chashchev, Sergey vs Raetsky, Alexander — 1-0 — USSR
1988 — Pessi, Juha vs Koskinen, Henri — 1-0 — Tampere ELO
7.Bg5 — 5.1% (86 parties)
1961 — Bronstein, David I vs Estrin, Yakov — 1/2-1/2 — Moscow ch
1992 — Gurevich, Dmitry vs Ivanov, Igor V. — 1/2-1/2 — Durango ch-USA
1993 — Gurevich, Dmitry vs Adams, Michael — 0-1 — Biel SUI
1993 — Zilberstein, Valery I vs Babushkin, Eduard — 1/2-1/2 — St.Petersburg open
2000 — Stieger, Helmut Dr vs Pires, Martin — 1/2-1/2 — ?