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D37c — Westphalia (1902)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Nbd7 5.Bf4
Les coups candidats
5…dxc4 — 37.8% (979 parties)
Ambassadeurs : Martirosyan, Haik M. (14x), Sarana, Alexey (9x), Gelfand, Boris (7x), Khismatullin, Denis (7x), Faizrakhmanov, Ramil (7x), Williams, Simon K (6x), Gunina, Valentina (6x), Kiriakov, Petr (5x)
5…c6 — 32.4% (840 parties)
Ambassadeurs : Rossi, Giampiero (3x), Uricar, Jakub (3x), Boguszlavszkij, Jevgenyij (3x), Estrada Degrandi, Walter (2x), Bakheet Farag (2x), Silman, Jeremy (2x), Barkan, Ozdal I (2x), Just, Gabriele, Dr. (2x)
5…Bb4 — 18.4% (476 parties)
Ambassadeurs : Sarana, Alexey (4x), Dardha, Daniel (4x), Tabatabaei, M. Amin (4x), La Rota, Fabio (3x), Secheres, Adrian-Simion (3x), Artemiev, Vladislav (3x), Materia, Marco (3x), Lupulescu, Constantin (2x)
5…a6 — 4.2% (110 parties)
Ambassadeurs : Barta, Zoltan (2x), Kerr, Brian (1x), Erozbek, Akdogan (1x), Thorsteinsdottir, Gudlaug (1x), De Linde, Anne (1x), Burnell, Steve (1x), Zwart, Jan (1x), ? (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…dxc4 5…c6 5…Bb4 5…a6
<1800 174 13% 48% 11% 9%
1800-2200 785 20% 49% 15% 7%
2200-2600 1191 55% 19% 22% 2%
2600+ 165 72% 3% 24%
Évolution par décennie (% des parties)
Décennie N parties 5…dxc4 5…c6 5…Bb4 5…a6
1950s 4 75% 25%
1960s 10 10% 70% 10% 10%
1970s 20 10% 65% 20%
1980s 54 20% 44% 15% 9%
1990s 261 14% 59% 11% 3%
2000s 621 23% 48% 13% 7%
2010s 859 45% 32% 9% 5%
2020s 760 52% 9% 36% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…dxc4 45% 52% ▲ +6.7%
5…c6 32% 9% ▼ -22.7%
5…Bb4 9% 36% ▲ +26.5%
5…a6 5% 2% ▼ -2.7%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 7 parties
Carlsen, Magnus — 5 parties
Kramnik, Vladimir — 4 parties
Anand, Viswanathan — 2 parties
Ju, Wenjun — 2 parties
Karpov, Anatoly — 1 partie
Kasparov, Garry — 1 partie
Parties historiques
5…dxc4 — 37.8% (979 parties)
1969 — Kraidman, Yair vs Geller, Uzi — 1/2-1/2 — Netanya ISR
1976 — Portisch, Lajos vs Byrne, Robert E — 1/2-1/2 — Biel SUI
1979 — Gligorić, Svetozar vs Ljubojevic, Ljubomir — 1/2-1/2 — Belgrade SRB
1981 — Jelen, Iztok vs Raicevic, Vladimir — 1-0 — Borovo
1983 — Schroer, Jonathan vs Taylor, Timothy — 0-1 — New York, NY USA
5…c6 — 32.4% (840 parties)
1950 — Pinzon Solis, Felipe vs Kesten, Sebastian — 1-0 — Dubrovnik olm
1956 — Saigin, Vladimir vs Tarnowski, Alfred — 1/2-1/2 — Minsk BLR
1957 — Almgren, Sven vs Cross, James — 1-0 — Monterey, CA
1961 — Estrada Degrandi, Walter vs Lefu Martin — 1-0 — ?
1961 — Estrada Degrandi, Walter vs Bauza, Lorenzo — 1-0 — URU-ch
5…Bb4 — 18.4% (476 parties)
1957 — Brandts Paul vs Jones, Homer W — 1/2-1/2 — East Orange
1964 — Zirin vs Powell, Jack — 1-0 — Oakland
1977 — Gabancho, Luis Maria vs Martello, Juan — 1-0 — Buenos Aires ARG
1978 — Lukacs, Peter vs Donev, Ivo — 1-0 — Ruse
1979 — Palider, J vs Mueller, Hagen — 1-0 — corr Nord-Maehren-12
5…a6 — 4.2% (110 parties)
1966 — Kerr, Brian vs Erozbek, Akdogan — 0-1 — Havana CUB
1982 — Agusto, Obafunmilayo vs Merqui, Yves — 1-0 — Lucerne SUI
1983 — Spraggett, Kevin vs Bolduc, Steve — 1-0 — Quebec Invitational
1985 — Thorsteinsdottir, Gudlaug vs De Linde, Anne — 1/2-1/2 — Eksjo SWE
1987 — ? vs Van Rienen, Willy — 0-1 — St Ingbert