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E56a — Main Line
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6
Les coups candidats
Ambassadeurs : Mroczek, Jacek (37x), Donner, Jan-Hein (35x), Taimanov, Mark (35x), Gligorić, Svetozar (34x), Averbakh, Yuri L (31x), Knaak, Rainer (29x), Isigkeit, Hans-Jürgen (28x), Reshevsky, Samuel (27x)
Ambassadeurs : Aleksandrov Ivanchev, Aleksandar (15x), Vaisser, Anatoly (6x), Schulenberg, Henk A T (6x), Langer, Raimund (6x), Kolpak, Sergey Fedorovich (6x), Ben Artzi, Ido (5x), Deskin, Gary (5x), Salem, A.R. Saleh (5x)
8.dxc5 — 1.0% (90 parties)
Ambassadeurs : Palladino, Mario (3x), Øvergaard, Jens (3x), Bernal Varela, Nelson (2x), Aannevik, Bjarne (2x), Au Cardero, Ramón (2x), Fuderer, Andrija (1x), Spassky, Boris Vasily (1x), Khalilbeili, Sultan (1x)
8.Ne2 — 0.8% (74 parties)
Ambassadeurs : Portisch, Ferenc (3x), Alatortsev, Vladimir N. (2x), Flatau, Leo (2x), Collins, Richard Arnold (2x), Van Scheltinga, Theo (2x), Usachyi, Vladimir (2x), Rabar, Braslav (1x), Bozic, Aleksandar (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.a3 8.cxd5 8.dxc5 8.Ne2
<1800 137 80% 12% 2% 1%
1800-2200 2083 88% 8% 1% 1%
2200-2600 4118 89% 9% 1% 1%
2600+ 213 87% 13%
Évolution par décennie (% des parties)
Décennie N parties 8.a3 8.cxd5 8.dxc5 8.Ne2
1900s 1 100%
1910s 1 100%
1930s 19 79% 16% 5%
1940s 23 78% 13% 4%
1950s 551 95% 2% 1% 2%
1960s 461 96% 2% 0% 2%
1970s 461 95% 2% 1% 1%
1980s 483 96% 1% 1% 1%
1990s 931 95% 3% 0% 1%
2000s 2101 93% 4% 1% 1%
2010s 3596 85% 11% 1% 0%
2020s 269 68% 30% 1% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.a3 85% 68% ▼ -17.0%
8.cxd5 11% 30% ▲ +18.3%
8.dxc5 1% 1% +0.2%
8.Ne2 0% 0% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Euwe, Max — 10 parties
Tal, Mikhail — 10 parties
Hou, Yifan — 9 parties
Kramnik, Vladimir — 7 parties
Botvinnik, Mikhail — 6 parties
Alekhine, Alexander — 4 parties
Smyslov, Vladimir — 4 parties
Kasparov, Garry — 2 parties
Karpov, Anatoly — 1 partie
Karpov, Aleksandr — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
8.a3 — 89.8% (7987 parties)
1909 — Alekhine, Alexander vs Bernstein allies — 0-1 — Moscow RUS
1911 — Burn, Amos vs Bernstein, Olivia — 1-0 — San Sebastian ESP
1932 — Rellstab, Ludwig vs Saemisch, Friedrich — 1/2-1/2 — Berlin GER
1932 — Rellstab, Ludwig Sr vs Rejfir, Josef — 0-1 — Hastings ENG
1935 — Nielsen, Julius vs Muller, Hans — 0-1 — Warsaw POL
8.cxd5 — 7.2% (638 parties)
1939 — Landau, Salo vs Van Scheltinga, Theo — 1/2-1/2 — Amsterdam NED
1939 — Landau, Salo vs Van Scheltinga, Theo — 1-0 — Amsterdam NED
1939 — Landau, Salo vs Szabo, Ladislav — 1/2-1/2 — Amsterdam NED
1946 — Herrmann, Ludwig vs Koch, Berthold — 0-1 — Leipzig GER
1946 — Kramer, Haije vs Forster, James Connor Christophe — 1/2-1/2 — Pittsburgh
8.dxc5 — 1.0% (90 parties)
1950 — Reshevsky, Samuel vs Gligoric, Svetozar — 1/2-1/2 — Radio
1952 — Morcken, Otto B vs De Souza Mendes, Joao — 1/2-1/2 — Helsinki olm
1955 — Fuderer, Andrija vs Spassky, Boris Vasily — 1/2-1/2 — Goteborg SWE
1956 — Khalilbeili, Sultan vs Voronkov, Boris — 1/2-1/2 — Tbilisi GEO
1964 — Enevoldsen, Jens vs Kolvig, Bent — 1-0 — Copenhagen DEN
8.Ne2 — 0.8% (74 parties)
1933 — Abrahams, Gerald vs Sultan Khan, Mir — 0-1 — Hastings ENG
1946 — Rabar, Braslav vs Bozic, Aleksandar — 1/2-1/2 — Zagreb CRO
1950 — Alatortsev, Vladimir N. vs Petrosian, Tigran A. — 1/2-1/2 — Moskou ch-URS
1950 — Alatortsev, Vladimir N. vs Petrosian, Arshak B — 1/2-1/2 — URS-ch18 Moscow
1950 — Van Scheltinga, Theo vs Donner, Jan-Hein — 1/2-1/2 — Amsterdam NED