E52a - 6…b6 - Main Line

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E52a — Main Line
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6
Les coups candidats
Ambassadeurs : Babula, Vlastimil (19x), Gligoric, Svetozar (15x), Donner, Jan-Hein (13x), Knaak, Rainer (13x), Taimanov, Mark (12x), Portisch, Lajos (12x), Jussupow, Artur (12x), Navara, David (11x)
7.cxd5 — 14.9% (408 parties)
Ambassadeurs : Goltseva, Ekaterina (4x), Vetokhin, Savva (4x), Donner, Jan-Hein (3x), Bisguier, Arthur B (3x), Chatalbashev, Boris (3x), Mamedyarov, Shakhriyar (3x), Deac, Bogdan-Daniel (3x), Urkedal, Frode Olav Olsen (3x)
7.a3 — 7.1% (194 parties)
Ambassadeurs : Aleksandrov Ivanchev, Aleksandar (7x), Flear, Glenn C (6x), Knaak, Rainer (5x), Ibragimov, Ildar (4x), Potkin, Vladimir (3x), Kögeler, Aart (3x), Qiu, Mengjie (3x), Chandler, Murray G (2x)
7.Bd2 — 0.5% (15 parties)
Ambassadeurs : Garcia Palermo, Carlos Horacio (2x), Lilienthal, Andor (1x), Sokolsky, Alexey (1x), Sokolov, Andrei (1x), Sokolov, Ivan (1x), Perleberg, Olaf (1x), Johnson, Chris (1x), Varga, Zoltan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.O-O 7.cxd5 7.a3 7.Bd2
<1800 51 76% 16% 8% —
1800-2200 578 77% 16% 6% 1%
2200-2600 1491 76% 15% 8% 0%
2600+ 175 74% 17% 9% —
Évolution par décennie (% des parties)
Décennie N parties 7.O-O 7.cxd5 7.a3 7.Bd2
1910s 1 — 100% — —
1920s 2 100% — — —
1930s 2 — 100% — —
1940s 5 60% 20% — 20%
1950s 82 89% 7% 4% —
1960s 76 74% 20% 5% —
1970s 92 93% 3% 3% —
1980s 151 79% 7% 11% 1%
1990s 294 81% 9% 9% 1%
2000s 360 80% 12% 6% 1%
2010s 1268 75% 16% 8% 0%
2020s 406 70% 24% 5% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.O-O 75% 70% ▼ -4.9%
7.cxd5 16% 24% ▲ +7.7%
7.a3 8% 5% ▼ -3.0%
7.Bd2 0% 1% ▲ +0.5%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 9 parties
Smyslov, Vladimir — 4 parties
Carlsen, Magnus — 2 parties
Ju, Wenjun — 2 parties
Euwe, Max — 1 partie
Karpov, Aleksandr — 1 partie
Kramnik, Vladimir — 1 partie
Hou, Yifan — 1 partie
Parties historiques
7.O-O — 77.0% (2108 parties)
1924 — Van Kranendonk, AG. vs Kroone, Gerard — 0-1 — NED
1928 — Bogoljubow, Efim vs Euwe, Max — 1-0 — The Netherlands
1946 — Batuev, Andrey M vs Prucha, Karel — 1-0 — Leningrad RUS
1947 — Szabo, Laszlo vs Lenner Leopold — 1-0 — Budapest HUN
1949 — Konstantinopolsky, Alexander vs er-Steinsapir, Yu — 1/2-1/2 — Moscow RUS
7.cxd5 — 14.9% (408 parties)
1911 — Salwe, Georg vs Schlechter, Carl — 1-0 — Carlsbad CZE
1938 — Landau, Salo vs Prins, Lodewijk — 1-0 — Margate B
1938 — Van Doesburgh, Gerrit vs Solmanis, Zigfrids — 1-0 — Margate ENG
1941 — Lasker, Edward vs Fine, Reuben — 0-1 — New York, NY USA
1952 — Golombek, Harry vs Keres, Paul — 1/2-1/2 — Budapest HUN
7.a3 — 7.1% (194 parties)
1954 — Rabar, Braslav vs Nievergelt, Erwin — 1/2-1/2 — Belgrade SRB
1955 — Negyesy, Gyorgy vs Hacsak, Istvan — 1-0 — Budapest HUN
1956 — Alvarez del Monte, Jose vs Eliskases, Erich — 0-1 — Montevideo URU
1961 — Beach, Richard A vs Scholes, James Edward — 1-0 — Aberystwyth
1964 — Bolbochan, Julio vs Bielicki, Carlos — 1-0 — Buenos Aires ARG
7.Bd2 — 0.5% (15 parties)
1949 — Lilienthal, Andor vs Sokolsky, Alexey — 1/2-1/2 — Moskou ch-URS
1985 — Garcia Palermo, Carlos Horacio vs Sokolov, Andrei — 1/2-1/2 — Lucerne SUI
1985 — Garcia Palermo, Carlos Horacio vs Sokolov, Ivan — 1/2-1/2 — Lucerne SUI
1996 — Perleberg, Olaf vs Johnson, Chris — 1-0 — corr IECG Cup II prel
1999 — Varga, Zoltan vs Kummer, Helmut — 1-0 — Austria