A57d — Main Line (1929)
1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nf3
Les coups candidats
Ambassadeurs : Sorin, Ariel (15x), Plachetka, Jan (14x), Hodgson, Julian M (12x), Bernal Varela, Nelson (12x), Suwara, Kazimierz (12x), Warstad, Leif Edwin (11x), Degterev, Pavel (11x), Yarmolyuk, Yury (11x)
Ambassadeurs : Degterev, Pavel (21x), Ottenweller, Wolfgang (20x), Geiger, Walter (19x), Pessoa, Francisco Azevedo (17x), Hoang, Thanh Trang (13x), Bardos, Istvan (13x), Amann, Klaus (12x), Baer, Werner (10x)
Ambassadeurs : Niewold, Jaap (9x), Suwara, Kazimierz (7x), Kosyanchuk, Yuriy (5x), Parra, Christian (5x), Burtasova, Anna (5x), Coppola, Claudio (5x), Browne, Walter Shawn (4x), Fominyh, Alexander (4x)
4…d6 — 8.4% (693 parties)
Ambassadeurs : Ehrenfeld, Eliot (4x), Hendriks, Willy (4x), Schmikli, Laszlo (4x), Sieciechowicz, Marcin (4x), Berg, Klaus (3x), Pisulinski, Jan (3x), Schnepp, Gunnar (3x), Verlinden, Dirk (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…g6 4…Bb7 4…bxc4 4…d6
<1800 497 33% 22% 12% 9%
1800-2200 2932 37% 25% 12% 11%
2200-2600 3824 40% 25% 10% 7%
2600+ 59 47% 27% 8% 3%
Évolution par décennie (% des parties)
Décennie N parties 4…g6 4…Bb7 4…bxc4 4…d6
1950s 11 — 82% 9% —
1960s 25 4% 64% 16% —
1970s 79 30% 41% 15% 8%
1980s 767 46% 24% 8% 6%
1990s 1808 42% 23% 10% 9%
2000s 3144 38% 27% 10% 8%
2010s 2029 36% 24% 14% 9%
2020s 420 29% 21% 11% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…g6 36% 29% ▼ -7.2%
4…Bb7 24% 21% ▼ -2.9%
4…bxc4 14% 11% ▼ -2.7%
4…d6 9% 5% ▼ -3.8%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 4 parties
Tal, Mikhail — 2 parties
Karpov, Anatoly — 2 parties
Kasparov, Garry — 2 parties
Kramnik, Vladimir — 2 parties
Carlsen, Magnus — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
4…g6 — 38.2% (3163 parties)
1969 — Seid Hee vs Berry, Jonathan — 0-1 — Vancouver
1972 — Dzindzichashvili, Roman vs Alburt, Lev — 1-0 — Baku ch-URS
1972 — Dzindzichashvili, Roman vs Alburt, Lev — 1-0 — Baku AZE
1972 — Mititelu, Gheorghe vs Ghizdavu, Dumitru — 1/2-1/2 — Bucharest ROU
1974 — Holfter, Dietrich vs Lueckert, Bernd — 1-0 — ?
4…Bb7 — 25.2% (2084 parties)
1953 — Wade, Robert G vs Fairhurst, William — 1/2-1/2 — Glasgow SCO
1955 — Kan Tri Phong Aiden vs Keres, Paul Petrovich — 0-1 — Moscow RUS
1955 — Kan, Ilya vs Keres, Paul — 0-1 — Moskou ch-URS
1955 — Guimard, Carlos E vs Keres, Paul — 0-1 — Goteborg izt
1955 — Barges, Lucas vs Prins, Lodewijk — 0-1 — Beverwijk NED
4…bxc4 — 10.9% (902 parties)
1954 — Detthow, Bo vs Prosdocimi, Arrigo — 0-1 — Sao Paulo BRA
1961 — Doda, Alvin vs Forintos, Gyozo V — 0-1 — Belgrade SRB
1966 — Hort, Vlastimil vs Bak, Istvan — 1/2-1/2 — Kecskemet HUN
1967 — Kozlovskaya, Valentina vs Lazarevic, Milunka — 1-0 — Subotica SRB
1968 — Beliavsky, Alexander G vs Gusev, Vladimir A — 1/2-1/2 — Riga LAT
4…d6 — 8.4% (693 parties)
1970 — Malich, Burkhard, Dr. vs Diez del Corral, Jesus — 1/2-1/2 — Siegen olm
1973 — Vano, Edward vs Kriva, A. — 1-0 — Chicago, IL USA
1978 — Gofshtein, Leonid vs Shereshevsky, Yakov I — 1-0 — Daugavpils LAT
1978 — Ree, Hans vs Alburt, Lev — 0-1 — Kiev UKR
1979 — Lemaire, Robert vs Timmermans, Daniel — 1-0 — Ghent