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E52b — Main Line
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6 7.O-O
Eval: [+0.08]
Les coups candidats
Ambassadeurs : Gligoric, Svetozar (14x), Donner, Jan-Hein (13x), Taimanov, Mark (12x), Portisch, Lajos (12x), Knaak, Rainer (12x), Jussupow, Artur (11x), Navara, David (10x), Korchnoi, Viktor (9x)
7…Ba6 — 14.9% (315 parties)
Ambassadeurs : Owens, Johnny (4x), Klekowski, Maciej (4x), Ludevid i Massana, Joan (4x), Iljin, Timofey (4x), Mayorau, Mikita (3x), Kolanek, Roman (3x), Kazmierski, Tomasz (3x), Korchmar, Vasiliy (3x)
Ambassadeurs : Popov, Vladimir Valentinovich (4x), Turczynski, Marian (4x), Sanguineti, Raúl Carlos (2x), Latas, Perica (2x), Szerlak, Andrzej (2x), Laliga, Olivier (2x), Conde Poderoso, Antonio (2x), Mroczek, Jacek (2x)
7…dxc4 — 5.5% (116 parties)
Ambassadeurs : Babula, Vlastimil (3x), Kurajica, Bojan (3x), Miralles, Gilles (2x), Iotov, Valentin (2x), Meyer, Frank (2x), Matanovic, Aleksandar (1x), Filip, Miroslav (1x), Ekenberg, Bengt (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Bb7 7…Ba6 7…c5 7…dxc4
<1800 39 59% 10% 8% 13%
1800-2200 444 61% 18% 9% 8%
2200-2600 1139 72% 15% 6% 5%
2600+ 130 66% 27% 4% 2%
Évolution par décennie (% des parties)
Décennie N parties 7…Bb7 7…Ba6 7…c5 7…dxc4
1920s 2 100%
1940s 3 67%
1950s 73 92% 1% 4%
1960s 56 88% 7% 4%
1970s 86 93% 2% 5%
1980s 120 86% 5% 2% 2%
1990s 238 85% 2% 3% 6%
2000s 289 82% 5% 2% 8%
2010s 955 64% 22% 8% 4%
2020s 286 48% 28% 13% 10%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Bb7 64% 48% ▼ -16.6%
7…Ba6 22% 28% ▲ +5.9%
7…c5 8% 13% ▲ +4.6%
7…dxc4 4% 10% ▲ +5.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 8 parties
Smyslov, Vladimir — 4 parties
Ju, Wenjun — 2 parties
Euwe, Max — 1 partie
Karpov, Aleksandr — 1 partie
Carlsen, Magnus — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
7…Bb7 — 70.8% (1493 parties)
1924 — Van Kranendonk, AG. vs Kroone, Gerard — 0-1 — NED
1928 — Bogoljubow, Efim vs Euwe, Max — 1-0 — The Netherlands
1947 — Szabo, Laszlo vs Lenner Leopold — 1-0 — Budapest HUN
1949 — Konstantinopolsky, Alexander vs er-Steinsapir, Yu — 1/2-1/2 — Moscow RUS
1950 — Niephaus, Walter vs Sahlmann, Walter — 1/2-1/2 — Bad Pyrmont GER
7…Ba6 — 14.9% (315 parties)
1981 — Lukacs, Peter vs Kurajica, Bojan — 1/2-1/2 — Sarajevo BIH
1982 — Plachetka, Jan vs Csom, Istvan — 1-0 — Lucerne SUI
1986 — Berndt, Klaus vs Brock, Friedemann — 0-1 — DDR-ch M763 corr
1988 — Geller, Arpad, Dr. vs Hoelzl, Franz — 1-0 — Budapest HUN
1988 — Mraz, Andrej vs Halouzka — 1-0 — corr ch22-CSSR
7…c5 — 6.6% (139 parties)
1953 — Geller, Efim P. vs Szabo, Laszlo — 1/2-1/2 — Zurich SUI
1961 — Lombardy, William J vs Keres, Paul — 1/2-1/2 — Zurich SUI
1965 — Luckis, Marcos vs Sanguineti, Raúl Carlos — 1/2-1/2 — Buenos Aires ARG
1966 — Aguilar Petersen, Martin Alejandro vs San Martin Sanguinetti, Vicente — 0-1 — Olympiad Havana CUB
1968 — Ocampo, Raul vs Sanguineti, Raúl Carlos — 0-1 — Mar del Plata ch-ARG
7…dxc4 — 5.5% (116 parties)
1954 — Newman Caceres, Reynaldo Adolfo vs Aabel Thomas Eapen — 1-0 — Nottingham ch-BCF
1955 — Rabar, Braslav vs Smyslov, Vladimir — 1/2-1/2 — Zagreb CRO
1957 — Haggqvist, Bjorn vs Bertholdt, Dieter — 0-1 — Reykjavik ol stud tt
1961 — Matanovic, Aleksandar vs Filip, Miroslav — 1/2-1/2 — Buenos Aires ARG
1963 — Ekenberg, Bengt vs Nilsson, Zandor — 1-0 — Sweden