E56i - 8.a3 dxc4 9.Bxc4 - Main Line

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E56i — 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 8.a3 dxc4 9.Bxc4
Les coups candidats
9…Ba5 — 62.5% (657 parties)
Ambassadeurs : Portisch, Lajos (18x), Lechtynsky, Jiri (17x), Wade, Robert G (15x), Reshevsky, Samuel (12x), Gligorić, Svetozar (11x), Polugaevsky, Lev (11x), Parma, Bruno (10x), Taimanov, Mark (8x)
9…Bxc3 — 29.4% (309 parties)
Ambassadeurs : Kostro, Jerzy (5x), Reshevsky, Samuel (4x), Kolarov, Atanas S. (4x), Kholmov, Ratmir D (4x), Tiviakov, Sergei (4x), Burkett, Max (4x), Najdorf, Miguel (3x), Potkin, Vladimir (3x)
Ambassadeurs : Najdorf, Miguel (3x), Reshevsky, Samuel (2x), Hudec, Jan (2x), Ragozin, Viacheslav (1x), Bastrikov, Georgy (1x), Goldberg, Grigory A (1x), Sidorov, Anatoly (1x), Goldenberg, Richard (1x)
9…Qxd4 — 0.1% (1 parties)
Ambassadeurs : Rodriguez Cespedes, Amador (1x), Nogueiras Santiago, Jesus (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Ba5 9…Bxc3 9…cxd4 9…Qxd4
<1800 14 57% 21% 21% —
1800-2200 183 48% 38% 14% —
2200-2600 488 65% 31% 4% 0%
2600+ 55 78% 18% 4% —
Évolution par décennie (% des parties)
Décennie N parties 9…Ba5 9…Bxc3 9…cxd4 9…Qxd4
1930s 4 75% — 25% —
1940s 3 67% 33% — —
1950s 48 54% 31% 15% —
1960s 114 67% 28% 5% —
1970s 175 83% 14% 3% —
1980s 50 58% 34% 8% —
1990s 81 40% 44% 15% 1%
2000s 103 31% 46% 23% —
2010s 273 55% 37% 8% —
2020s 201 80% 18% 2% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Ba5 55% 80% ▲ +25.2%
9…Bxc3 37% 18% ▼ -19.1%
9…cxd4 8% 2% ▼ -5.7%
9…Qxd4 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Aleksandr — 5 parties
Ju, Wenjun — 3 parties
Botvinnik, Mikhail — 2 parties
Tal, Mikhail — 2 parties
Smyslov, Vladimir — 2 parties
Karpov, Anatoly — 1 partie
Parties historiques
9…Ba5 — 62.5% (657 parties)
1937 — Landau, Salo vs Steiner, Endre — 0-1 — Kemeri LAT
1938 — Landau, Salo vs Alexander, Conol Hugh — 1/2-1/2 — London, Gt Eastern Hotel
1939 — Reshevsky, Samuel vs Fine, Reuben — 1/2-1/2 — New York, NY USA
1940 — Alatortsev, Vladimir N. vs Levenfish, Grigory — 0-1 — Moscow RUS
1940 — Alhuay Grau, Dominick Fabricio vs Luckis, Marcos — 0-1 — Buenos Aires ARG
9…Bxc3 — 29.4% (309 parties)
1947 — Levenfish, Grigory vs Kan, Ilya A — 1/2-1/2 — Leningrad ch-URS
1953 — Najdorf, Miguel vs Reshevsky, Samuel — 1-0 — Match Buenos Aires
1953 — Reshevsky, Samuel vs Najdorf, Miguel — 1/2-1/2 — Buenos Aires ARG
1953 — Najdorf, Miguel vs Reshevsky, Samuel — 1-0 — Buenos Aires ARG
1953 — Steinberg Daniv, Eliyahu vs Shocron, Ruben — 1/2-1/2 — Bariloche
9…cxd4 — 8.0% (84 parties)
1938 — Ragozin, Viacheslav vs Bastrikov, Georgy — 1-0 — Leningrad RUS
1952 — Rabar, Braslav vs De Souza Mendes, Joao — 1-0 — Vienna AUT
1952 — Najdorf, Miguel vs Reshevsky, Samuel — 1-0 — ?
1953 — Najdorf, Miguel vs Reshevsky, Samuel — 1-0 — Buenos Aires ARG
1954 — Goldberg, Grigory A vs Sidorov, Anatoly — 1-0 — Riga LAT
9…Qxd4 — 0.1% (1 parties)
1995 — Rodriguez Cespedes, Amador vs Nogueiras Santiago, Jesus — 1/2-1/2 — Capablanca mem