E54m - 8.Bxc4 cxd4 9.exd4 b6 10.Bg5 Bb7 11.Rc1 - Main Line Karpov

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E54m — Main Line Karpov
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 cxd4 9.exd4 b6 10.Bg5 Bb7 11.Rc1
Les coups candidats
11…Nbd7 — 41.9% (293 parties)
Ambassadeurs : Coleman, Peter L (4x), Brodsky, Michail (3x), Grant, Jonathan I M (3x), Gligoric, Svetozar (3x), Sulman, Robert (3x), Lorin, Fabrice (3x), Jordaan, Wayne (3x), Georgiev, Vladimir (3x)
11…Nc6 — 32.9% (230 parties)
Ambassadeurs : Nowak, Ireneusz (7x), Bordenave, Roberto (5x), Alekseev, Evgeny (4x), Hlavica, Bretislav (4x), Krueger, Hilmar (4x), Karpov, Aleksandr (3x), Speelman, Jon S (3x), Karpov, Anatoly (3x)
11…h6 — 13.9% (97 parties)
Ambassadeurs : Hlavica, Bretislav (5x), Nowak, Ireneusz (4x), Paravyan, David (2x), Junge, Wolfgang (2x), Salzmann, Stefan (2x), Bordenave, Roberto (2x), Bennborn, Jan (2x), Dolgov, Igor (2x)
11…Be7 — 7.7% (54 parties)
Ambassadeurs : Gheorghiu, Florin (2x), Spraggett, Kevin (2x), Fossan, Erik (2x), Djuric, Stefan (2x), Mozharov, Mikhail (2x), Rabar, Braslav (1x), Darga, Klaus (1x), Kuzmin, Gennadiy (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11…Nbd7 11…Nc6 11…h6 11…Be7
<1800 4 25% — 75% —
1800-2200 159 39% 37% 19% 4%
2200-2600 420 43% 30% 13% 9%
2600+ 50 30% 48% 10% 10%
Évolution par décennie (% des parties)
Décennie N parties 11…Nbd7 11…Nc6 11…h6 11…Be7
1930s 2 — 100% — —
1940s 1 — — 100% —
1960s 3 67% — — 33%
1970s 17 41% 18% — 35%
1980s 38 58% 18% 3% 16%
1990s 106 54% 25% 1% 13%
2000s 170 56% 35% 1% 6%
2010s 286 34% 36% 21% 5%
2020s 77 17% 38% 42% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11…Nbd7 34% 17% ▼ -17.0%
11…Nc6 36% 38% ▲ +1.3%
11…h6 21% 42% ▲ +20.6%
11…Be7 5% 1% ▼ -3.9%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Aleksandr — 4 parties
Karpov, Anatoly — 3 parties
Alekhine, Alexander — 2 parties
Ding, Liren — 1 partie
Parties historiques
11…Nbd7 — 41.9% (293 parties)
1964 — Antoshin, Vladimir S vs Barcza, Gedeon — 1/2-1/2 — Ordzhonikidze
1967 — Zinn, Andrew vs Bech Johansson, Amadeus — 1/2-1/2 — Halle zt Halle GER
1975 — Taimanov, Mark vs Barcza, Gedeon — 1/2-1/2 — Brno CZE
1975 — Portisch, Ferenc vs Dely, Peter — 1/2-1/2 — Kecskemet HUN
1977 — Busch, Raimund vs Haufe, W. — 1/2-1/2 — corr FRG/K
11…Nc6 — 32.9% (230 parties)
1933 — Alekhine, Alexander vs Baratz, Abraham — 1-0 — Paris Paris FRA
1933 — Alekhine, Alexander vs Baratz, Abraham — 1-0 — Paris FRA
1975 — Portisch, Lajos vs Karpov, Aleksandr — 1/2-1/2 — Milan ITA
1975 — Portisch, Lajos vs Karpov, Anatoly — 1/2-1/2 — Milan ITA
1977 — Gligoric, Sofija vs Karpov, Aleksandr — 1/2-1/2 — Tilburg NED
11…h6 — 13.9% (97 parties)
1949 — Hartleb, Glenn E vs Sandrin, Albert — 1/2-1/2 — Omaha
1982 — Gligoric, Svetozar vs Marjanovic, Slavoljub — 1-0 — Yugoslavia
1997 — Hunt, Harriet V vs Grant, Jonathan I M — 1-0 — Walsall
2003 — Schumacher, Klaus vs Melzer, Wilfried — 0-1 — ?
2007 — Opryatkin, Nikolay Nikolaevich vs Zolochevsky, Valery A — 1/2-1/2 — ICCF
11…Be7 — 7.7% (54 parties)
1961 — Rabar, Braslav vs Darga, Klaus — 1/2-1/2 — Graz AUT
1974 — Taimanov, Mark vs Grefe, John A — 1/2-1/2 — Slncev Brjag
1976 — Kuzmin, Gennadiy vs Gheorghiu, Florin — 1/2-1/2 — Sochi RUS
1976 — Sanguinetti, Ricardo vs Schweber, Samuel — 1/2-1/2 — Mar del Plata ARG
1977 — Donner, Jan-Hein vs Van der Vliet, Fred — 1-0 — Leeuwarden ch-NED