E09h - 8…b6 9.e4 - Closed, Main Line (1953)

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E09h — Closed, Main Line (1953)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2 b6 9.e4
Les coups candidats
Ambassadeurs : Karakehajov, Kalin (6x), Sgherri, Marco (6x), Burtman, Sharon (5x), Dizdar, Goran (4x), Jurcik, Martin (4x), Donchenko, Anatoly (4x), Winter, Malcolm J (4x), Rabar, Braslav (3x)
Ambassadeurs : Lucena, Lincoln (4x), Poleschikov, Alexey (3x), Ghaem Maghami, Ehsan (3x), Zalys, Ignas (2x), Ljubojevic, Ljubomir (2x), Heimberger, Reinhard (2x), Tsekov, Svetozar (2x), Lamikhov, Jury (2x)
9…dxc4 — 11.3% (423 parties)
Ambassadeurs : Pingin, Artem (10x), Kjartansson, Gudmundur (7x), Plenca, Jadranko (6x), Garifullina, Leya (5x), Fischer, Daniel (4x), Grachev, Boris (4x), Gunina, Valentina (3x), Pogonina, Natalija (3x)
Ambassadeurs : Price, Derek (5x), Drasko, Milan (5x), Stigar, Petter (3x), Wertjanz, David (3x), Burnett, Jim (3x), Radulov, Ivan (2x), Quinteros, Miguel A. (2x), Rashkovsky, Nukhim N (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Bb7 9…dxe4 9…dxc4 9…Ba6
<1800 208 27% 50% 9% 8%
1800-2200 1524 37% 43% 11% 6%
2200-2600 1737 47% 24% 12% 11%
2600+ 47 53% — 36% 6%
Évolution par décennie (% des parties)
Décennie N parties 9…Bb7 9…dxe4 9…dxc4 9…Ba6
1950s 25 68% 24% — 4%
1960s 30 63% 20% 7% 3%
1970s 44 48% 30% — 18%
1980s 125 55% 32% 2% 7%
1990s 328 54% 28% 5% 7%
2000s 681 46% 33% 5% 11%
2010s 1854 45% 33% 9% 9%
2020s 655 25% 36% 30% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Bb7 45% 25% ▼ -19.6%
9…dxe4 33% 36% ▲ +3.2%
9…dxc4 9% 30% ▲ +20.4%
9…Ba6 9% 5% ▼ -3.8%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 2 parties
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Botvinnik, Mikhail — 1 partie
Hou, Yifan — 1 partie
Parties historiques
9…Bb7 — 43.1% (1612 parties)
1950 — Koltermann vs Horenstein — 1-0 — USSR
1950 — Golombek, Harry vs Mueller, Helge — 1-0 — Venice ITA
1950 — Macskasy, Elod vs Gereben, Erno — 1-0 — Budapest HUN
1951 — Alfred, Le Bron vs Puc, Stojan — 1-0 — It Dortmund GER
1951 — Udovcic, Mijo vs Abdi, Andreas — 0-1 — Ljubljana
9…dxe4 — 32.7% (1222 parties)
1953 — Ciejka, Tadeusz vs Sliwa, Bogdan — 1/2-1/2 — Krakow POL
1953 — Toran Albero, Roman vs Kinzel, Alfred — 1-0 — Venice ITA
1954 — Moskowitz, Jack vs Gross, Hannes — 1-0 — Hollywood
1955 — Larsen, Bent Ravn vs Nielsen, Hartvig — 1-0 — Aalborg DEN
1957 — Asmundsson, Ingvar vs Blatny, Frantisek — 1/2-1/2 — Reykjavik ISL
9…dxc4 — 11.3% (423 parties)
1969 — Lebredo Zaragoitia, Gerardo vs Polgar, Istvan — 0-1 — Dresden GER
1969 — Buslaev, Aleksander vs Makogonov, Vladimir — 1-0 — URS-chT Grozny
1982 — Goonetilleke, L C vs Cilia Vincenti, Victor — 1-0 — Luzern olm
1983 — Clara, Hans-Joachim vs Pfleger, Michael — 1-0 — Buehl
1992 — Chacon Beltran, Jose Antonio vs Bueno Perez, Lazaro Antonio — 1/2-1/2 — ?
9…Ba6 — 8.4% (315 parties)
1956 — Voronkov, Boris vs Abanin, Vladimir — 0-1 — Tbilisi GEO
1963 — Sapi, Laszlo vs Flesch, Jean-benoit — 1/2-1/2 — Budapest ch-HUN
1970 — Kolarov, Atanas S. vs Radulov, Ivan — 0-1 — Sofia BUL
1970 — Matsumoto, Yoshitaro vs Gereben, Erno — 0-1 — Siegen olm
1970 — Quinteros, Miguel A. vs Radulov, Ivan — 0-1 — Siegen olm