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E41b —
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Nf3
Eval: [+0.14]
Les coups candidats
Ambassadeurs : Borisenko, Georgy K (28x), Geller, Efim P. (17x), Taimanov, Mark (17x), Korchnoi, Viktor (16x), Kolanek, Roman (13x), Szabo, Laszlo (11x), Parma, Bruno (11x), Kholmov, Ratmir D (11x)
5…Nc6 — 21.1% (755 parties)
Ambassadeurs : Timman, Jan H (5x), Pinter, Jozsef (5x), Moiseev, Oleg (3x), Szabo, Iuliu inactive (3x), Borisenko, Georgy K (3x), Gligoric, Svetozar (3x), Kiss, Attila (3x), Zhydkova, Olena (3x)
5…d5 — 8.8% (314 parties)
Ambassadeurs : Korchnoi, Viktor (4x), Spassky, Boris Vasily (4x), Kuettner, Uwe (3x), Euwe, Max (3x), Gromek, Jozef (3x), Levenfish, Grigory (2x), Kan, Ilya A (2x), Fuchs, Reinhart (2x)
5…b6 — 6.0% (213 parties)
Ambassadeurs : Zalys, Ignas (4x), Alatortsev, Vladimir N. (3x), Donner, Jan-Hein (3x), Timman, Jan H (3x), Forintos, Gyozo V (3x), Pluemmer, Rolf (3x), Zelcic, Robert (3x), Botvinnik, Mikhail (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…O-O 5…Nc6 5…d5 5…b6
<1800 82 50% 15% 10% 7%
1800-2200 888 53% 21% 6% 5%
2200-2600 1363 49% 26% 7% 6%
2600+ 51 37% 39% 10% 6%
Évolution par décennie (% des parties)
Décennie N parties 5…O-O 5…Nc6 5…d5 5…b6
1910s 1 100%
1920s 3
1930s 7 29% 29% 29%
1940s 6 50% 17% 33%
1950s 226 65% 4% 20% 8%
1960s 338 70% 5% 14% 8%
1970s 226 55% 21% 8% 6%
1980s 245 35% 36% 10% 5%
1990s 527 41% 30% 5% 6%
2000s 948 51% 23% 8% 5%
2010s 908 56% 20% 7% 6%
2020s 138 48% 25% 7% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…O-O 56% 48% ▼ -7.8%
5…Nc6 20% 25% ▲ +4.8%
5…d5 7% 7% -0.2%
5…b6 6% 8% ▲ +2.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 8 parties
Smyslov, Vladimir — 8 parties
Euwe, Max — 6 parties
Botvinnik, Mikhail — 5 parties
Karpov, Aleksandr — 4 parties
Kasparov, Garry — 2 parties
Karpov, Anatoly — 2 parties
Lasker, Emanuel — 1 partie
Carlsen, Magnus — 1 partie
Kramnik, Vladimir — 1 partie
Hou, Yifan — 1 partie
Parties historiques
5…O-O — 52.2% (1864 parties)
1919 — Maier, Gennadi vs Lasker, Emanuel — 1/2-1/2 — sim Munich
1932 — Koltanowski, George vs Watts, William Henry — 1-0 — Whiteleys, London
1933 — Rellstab, Ludwig vs Roedl, Ludwig — 0-1 — Bad Pyrmont GER
1948 — Levenfish, Grigory vs Taimanov, Mark — 0-1 — Moskou ch-URS
1949 — Hartleb, Glenn E vs Sandrin, Albert — 1/2-1/2 — Omaha
5…Nc6 — 21.1% (755 parties)
1949 — Ojanen, Kaarle S vs O'Kelly, Albéric de Galway — 1/2-1/2 — Trencianske Teplice SVK
1952 — Moiseev, Oleg vs Byvshev, Vasily — 1-0 — Moskou ch-URS
1953 — Garcia Winkler, Alejandro vs Ruester, Otto — 1/2-1/2 — Jena GER
1954 — Tolush, Alexander vs Levit, Roman — 1-0 — Leningrad ch22-SU sf
1955 — Gordon Cobos, Marc vs Dake, Arthur William — 0-1 — Long Beach, CA USA
5…d5 — 8.8% (314 parties)
1934 — Gereben, Erno vs Havasi, Kornel — 1-0 — Sopron
1935 — Konig, Imre vs Tomovic, Vasilje — 0-1 — Yugoslavia
1944 — Denker, Arnold S vs Green, Matthew R — 1-0 — New York, NY USA
1947 — Levenfish, Grigory vs Kan, Ilya A — 1/2-1/2 — Leningrad ch-URS
1950 — Heemskerk, Fenny vs Chaude de Silans, Chantal — 0-1 — Moscow RUS
5…b6 — 6.0% (213 parties)
1932 — Alatortsev, Vladimir N. vs Chekhover, Vitaly — 1/2-1/2 — Leningrad RUS
1932 — Alatortsev, Vladimir N. vs Goldberg, Grigory A — 1-0 — Leningrad RUS
1951 — Klein Hansen, Emil vs Golombek, Harry — 1/2-1/2 — Birmingham ENG
1954 — Sarapu, Ortvin vs Feneridis, A. — 1-0 — New Zealand ch
1954 — Minev, Nikolay N vs Stahlberg, Gideon — 1/2-1/2 — Amsterdam NED