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E50a —
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3
Eval: [+0.11]
Les coups candidats
Ambassadeurs : Korchnoi, Viktor (11x), Kolanek, Roman (10x), ? (9x), Vaisser, Anatoly (9x), Rakhmanov, Aleksandr (9x), Swahnberg, Lars (8x), Kovacs, Gabor (8x), Kozma, Julius (7x)
Ambassadeurs : Korchnoi, Viktor (11x), Najdorf, Miguel (9x), Kolanek, Roman (8x), Swahnberg, Lars (7x), Krogius, Nikolai V (6x), Polugaevsky, Lev (6x), Portisch, Lajos (5x), Taimanov, Mark (5x)
Ambassadeurs : Kolanek, Roman (9x), Speelman, Jon S (4x), Korchnoi, Viktor (4x), Portisch, Lajos (4x), Popov, Vladimir Valentinovich (4x), Gligorić, Svetozar (3x), Reshevsky, Samuel (3x), Bernal Varela, Nelson (3x)
5…Bxc3+ — 3.8% (133 parties)
Ambassadeurs : Kolanek, Roman (3x), Zabransky, Frantisek (2x), Volkov, Aleksandr (2x), Schubert, Steffen (2x), Habes, Jiri (2x), Salonen, Jukka (2x), Vetokhin, Savva (2x), Struzka, Vlastimil (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…d5 5…c5 5…b6 5…Bxc3+
<1800 108 37% 24% 20% 9%
1800-2200 1037 41% 27% 21% 5%
2200-2600 1262 51% 27% 15% 4%
2600+ 86 50% 30% 9% 5%
Évolution par décennie (% des parties)
Décennie N parties 5…d5 5…c5 5…b6 5…Bxc3+
1850s 1
1920s 3 33% 33% 33%
1930s 3 33% 67%
1940s 13 23% 8% 23%
1950s 89 40% 42% 13%
1960s 250 42% 41% 11%
1970s 92 40% 35% 18% 2%
1980s 165 59% 27% 11%
1990s 381 55% 25% 14% 1%
2000s 741 46% 30% 18% 2%
2010s 1165 42% 27% 19% 5%
2020s 558 52% 21% 13% 9%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…d5 42% 52% ▲ +9.9%
5…c5 27% 21% ▼ -6.6%
5…b6 19% 13% ▼ -6.9%
5…Bxc3+ 5% 9% ▲ +3.6%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 7 parties
Smyslov, Vladimir — 3 parties
Karpov, Aleksandr — 3 parties
Alekhine, Alexander — 2 parties
Ju, Wenjun — 2 parties
Euwe, Max — 1 partie
Botvinnik, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Anand, Viswanathan — 1 partie
Ding, Liren — 1 partie
Carlsen, Magnus — 1 partie
Gukesh D — 1 partie
Parties historiques
5…d5 — 46.7% (1616 parties)
1929 — Winter, William vs Yates, Fred Dewhirst — 0-1 — London, The Gambit
1939 — Landau, Salo vs Euwe, Max — 1/2-1/2 — Amsterdam m ch-NED
1945 — Tolush, Alexander V vs Mikenas, Vladas — 1-0 — Tallinn EST
1945 — Tolush, Alexander V vs Mikenas, Vladas — 1-0 — Tallinn EST
1947 — Taimanov, Mark vs Averbakh, Yuri L — 0-1 — Leningrad RUS
5…c5 — 28.0% (969 parties)
1920 — Reshevsky, Samuel vs Saemisch, Friedrich — 0-1 — Berlin GER
1941 — Lopez Esnaola, B. vs Alekhine, Alexander — 0-1 — Vitoria
1950 — Alatortsev, Vladimir N. vs Averbakh, Yuri L — 1/2-1/2 — Moskou ch-URS
1950 — Alatortsev, Vladimir N. vs Averbakh, Yuri L — 1/2-1/2 — ?
1952 — Najdorf, Miguel vs Reshevsky, Samuel — 1/2-1/2 — San Salvador ESA
5…b6 — 16.2% (561 parties)
1926 — Bogoljubow, Efim vs Saemisch, Friedrich — 1/2-1/2 — Munich GER
1935 — Korody Keresztely, Imre vs Steiner, Endre — 1/2-1/2 — Tatatovaros
1938 — Reshevsky, Samuel vs Alekhine, Alexander — 1/2-1/2 — Nederland
1941 — Luckis, Marcos vs Stahlberg, Gideon — 0-1 — Mar del Plata ARG
1946 — Levenfish, Grigory vs Kottnauer, Cenek — 0-1 — Leningrad RUS
5…Bxc3+ — 3.8% (133 parties)
1978 — Dyker, Gerald vs Ehring, B — 1-0 — GER
1979 — Gonzalo Gonzalez, Francisco vs Gutierrez Herrera, Jose Antonio — 1/2-1/2 — Manizales
1992 — Stajcic, Nikola M vs Golovin, Leonid — 1/2-1/2 — Budapest HUN
1994 — Rios Garcia, Miguel vs Sanz Alonso, Francisco Javier — 0-1 — Mislata
1996 — Radnoti, Gergely vs Tamas, Gyorgy — 0-1 — HUN