B25h — Closed
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 Nf6 7.Nf3
Les coups candidats
7…O-O — 65.3% (1996 parties)
Ambassadeurs : Detela, Walter (24x), Kuzmin, Vyacheslav Mikhailovich (10x), Karaoglan, Doruk (9x), De Coverly, Roger D (7x), Valner, Uku (6x), Sosonko, Gennadi (5x), Laine, Jari (5x), Kneutgen, Alexander (5x)
7…Bg4 — 16.5% (504 parties)
Ambassadeurs : Brodie, Hugh (3x), Schueler, Wolfgang (3x), Ginsburg, Mark (3x), Zichichi, Alvise (2x), Brown, Paul (2x), Hartoch, Robert G (2x), Onderco Jan (2x), Richards, John E (2x)
7…Rb8 — 4.4% (136 parties)
Ambassadeurs : Moore, John C (2x), Kaulfuss, Helmut (2x), Sacarello Felix (1x), Cabbouche, Khalil (1x), Shean Robert (1x), Langer, Sebastian (1x), Bhend, Edwin (1x), Attard, Wilfred (1x)
7…Bd7 — 4.1% (125 parties)
Ambassadeurs : Hoen, Ragnar Harald (2x), Laczay, Istvan Dr (2x), Kratochvil, Vit (2x), Cvetanovic, Uros (2x), Drapal Robert (1x), Vodicka, Vlastimil (1x), Kupferstich, Moises (1x), Mortensen Hjalmar (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…O-O 7…Bg4 7…Rb8 7…Bd7
<1800 152 59% 20% 1% 4%
1800-2200 1429 65% 16% 5% 4%
2200-2600 642 79% 11% 4% 3%
2600+ 7 71% 29%
Évolution par décennie (% des parties)
Décennie N parties 7…O-O 7…Bg4 7…Rb8 7…Bd7
1950s 12 67% 17%
1960s 55 62% 13% 13% 4%
1970s 79 59% 13% 6% 9%
1980s 96 70% 17% 4%
1990s 617 60% 19% 5% 6%
2000s 1075 67% 16% 3% 4%
2010s 1013 66% 17% 5% 3%
2020s 112 70% 14% 9%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…O-O 66% 70% ▲ +3.3%
7…Bg4 17% 14% ▼ -2.4%
7…Rb8 5% 9% ▲ +4.4%
7…Bd7 3% 0% ▼ -3.3%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 1 partie
Karpov, Anatoly — 1 partie
Tal, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Parties historiques
7…O-O — 65.3% (1996 parties)
1952 — Smyslov, Vasily vs Ilivitsky, Georgy A — 1-0 — Moscow RUS
1952 — Karastoichev, Emil vs Filipov, Filip — 1/2-1/2 — Sofia BUL
1953 — Taylor, John M vs Berner, George — 0-1 — Winnipeg CAN
1955 — Pinkus, Lutz vs Bisguier, Arthur B — 0-1 — New York, NY USA
1955 — Borsony, Valt vs Milic, Bozidar — 1-0 — Wch2 sf5 corr
7…Bg4 — 16.5% (504 parties)
1961 — Milev, Zdravko vs Drumev, Avram — 1-0 — Sofia BUL
1965 — Levens, David G vs Capece Junior, Bettencourt Preto Sebastiao — 0-1 — Hastings ENG
1966 — Zichichi, Alvise vs Olivera, Alfredo — 1-0 — Havana CUB
1966 — Gat, Israel vs Aloni, Itzchak — 1-0 — Tel Aviv ISR
1967 — Zichichi, Alvise vs Magrin, Antonio — 1/2-1/2 — Savona ch ITA
7…Rb8 — 4.4% (136 parties)
1960 — Fuller, Ronald A vs Bennett, Patrick — 1/2-1/2 — Leicester
1963 — Fahnenschmidt, Gerhard vs Veeck, Kurt — 1-0 — Nt Helmbrechts GER
1964 — Bhend, Edwin vs Attard, Wilfred — 1/2-1/2 — Kecskemet HUN
1966 — Barki, Nelson vs Castillo Tomas, David — 0-1 — Cordoba ARG
1968 — Sacarello Felix vs Cabbouche, Khalil — 1/2-1/2 — Lugano olm
7…Bd7 — 4.1% (125 parties)
1953 — Kupferstich, Moises vs Mortensen Hjalmar — 1-0 — Copenhagen DEN
1958 — Redolfi, Argentino Rodolfo vs Beni, Alfred — 1/2-1/2 — Munich GER
1961 — Milev, Zdravko vs Dimitrov Iliev, Ilia — 1-0 — Sofia BUL
1966 — Drapal Robert vs Vodicka, Vlastimil — 0-1 — Prague CZE
1970 — Evans, CB. vs Evans, Thomas — 0-1 — Bearsden, Glasgow