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E54d — Main Line (1948)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nc6
Les coups candidats
Ambassadeurs : Lechtynsky, Jiri (16x), Portisch, Lajos (14x), Polugaevsky, Lev (12x), Aadhitha Karikalan (10x), Gligoric, Sofija (10x), Pomar Salamanca, Arturo (8x), Taimanov, Mark (8x), Parma, Bruno (8x)
9.Bd3 — 8.8% (98 parties)
Ambassadeurs : Pomar Salamanca, Arturo (8x), Donner, Jan-Hein (5x), Salem, A.R. Saleh (5x), Miguel, Nahuel (3x), Nisipeanu, Liviu-Dieter (3x), Panno, Oscar (2x), Razuvaev, Yuri S (2x), Gligoric, Sofija (2x)
9.dxc5 — 3.5% (39 parties)
Ambassadeurs : Badacsonyi, Stanley (3x), De Winter Gallegos, Willy (1x), Ferriz Carrasquedo, Alfonso (1x), Ujtelky, Maximilian (1x), Kozma, Julius (1x), Lazar, Iosif (1x), Belkhodja, Slim (1x), Savon, Vladimir (1x)
9.Ne2 — 1.1% (12 parties)
Ambassadeurs : Senkiewicz, Mike (1x), Ristoja, Thomas W. (1x), Lengyel, Levente (1x), Plachetka, Jan (1x), Saralegui, Mario (1x), Carvalho, Gabriel Christiano S (1x), Miranda Llanes, Yerisbel (1x), Llaudy Pupo, Lisandra (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9.a3 9.Bd3 9.dxc5 9.Ne2
<1800 41 80% 17% 2% —
1800-2200 246 85% 9% 2% 2%
2200-2600 542 84% 7% 4% 1%
2600+ 72 74% 14% 10% —
Évolution par décennie (% des parties)
Décennie N parties 9.a3 9.Bd3 9.dxc5 9.Ne2
1950s 37 84% 3% 3% —
1960s 82 90% 6% 1% —
1970s 163 82% 16% — 1%
1980s 38 89% 8% 3% —
1990s 74 84% 5% 3% 1%
2000s 101 90% 7% 1% —
2010s 318 82% 10% 3% 1%
2020s 301 81% 7% 7% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.a3 82% 81% ▼ -1.7%
9.Bd3 10% 7% ▼ -2.8%
9.dxc5 3% 7% ▲ +3.8%
9.Ne2 1% 2% +0.4%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 5 parties
Ju, Wenjun — 3 parties
Botvinnik, Mikhail — 2 parties
Tal, Mikhail — 1 partie
Karpov, Aleksandr — 1 partie
Parties historiques
9.a3 — 83.5% (930 parties)
1951 — Germek, Milan vs Aadhitha Karikalan — 1/2-1/2 — Sarajevo BIH
1951 — Nikolac, Juraj vs Aadhitha Karikalan — 1-0 — Sarajevo BIH
1952 — Rabar, Braslav vs De Souza Mendes, Joao — 1-0 — Vienna AUT
1952 — Miguel, Nahuel vs Rapaka Samuel Paul — 1/2-1/2 — San Salvador ESA
1952 — Miguel, Nahuel vs Rapaka Samuel Paul — 1/2-1/2 — San Salvador ESA
9.Bd3 — 8.8% (98 parties)
1957 — Bertholdt, Dieter vs Ravn, Palle — 1/2-1/2 — Reykjavik ISL
1962 — Sanguineti, Raúl Carlos vs Kolarov, Atanas S. — 1-0 — Varna olm
1964 — Miguel, Nahuel vs Eliskases, Erich — 1-0 — Buenos Aires ARG
1968 — Donner, Jan-Hein vs O'Kelly de Galway, Alberic — 1-0 — Lugano SUI
1969 — Donner, Jan-Hein vs Bosch van Rosenthal, Edzard — 1-0 — Wijk aan Zee NED
9.dxc5 — 3.5% (39 parties)
1959 — Ujtelky, Maximilian vs Kozma, Julius — 1/2-1/2 — Marianske Lazne
1963 — De Winter Gallegos, Willy vs Ferriz Carrasquedo, Alfonso — 1/2-1/2 — Mexico DF
1980 — Lazar, Iosif vs Belkhodja, Slim — 1/2-1/2 — Dortmund GER
1992 — Ivic, Roman Eric vs Morawietz, Dieter — 0-1 — Cologne GER
1994 — Savon, Vladimir vs Kochyev, Alexander — 1/2-1/2 — St Petersburg RUS
9.Ne2 — 1.1% (12 parties)
1970 — Senkiewicz, Mike vs Ristoja, Thomas W. — 0-1 — Haifa ISR
1978 — Lengyel, Levente vs Plachetka, Jan — 1/2-1/2 — Odzaci
1993 — Saralegui, Mario vs Carvalho, Gabriel Christiano S — 1-0 — Trebejos
2012 — Fellman, Mike vs Drake, Jason — 0-1 — Minneapolis USA
2014 — Miranda Llanes, Yerisbel vs Llaudy Pupo, Lisandra — 1/2-1/2 — Pinar del Rio CUB