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A40q — Keres Defence
1.d4 e6 2.c4 Bb4+ 3.Bd2
Eval: [+0.29]
Les coups candidats
Ambassadeurs : Eingorn, Vereslav S (63x), Paehtz, Elisabeth (28x), Malakhatko, Vadim (20x), Edouard, Romain (19x), Ward, Chris G (18x), Richards, Heather S (18x), Epishin, Vladimir (17x), Gulko, Boris (16x)
3…Qe7 — 26.6% (1193 parties)
Ambassadeurs : Kovacevic, Blazimir (18x), Brodie, Hugh (15x), Hecht, Hans-Joachim (15x), Ivkov, Borislav (13x), Jakab, Attila (13x), Ricken, Katharina (10x), Totsky, Leonid (9x), Portisch, Gabor (9x)
Ambassadeurs : Arkell, Keith C (48x), Kosic, Dragan (41x), Etmans, Maarten (22x), Zvjaginsev, Vadim (15x), Juksta, Karolis (11x), Markidis, Konstantinos (10x), Bischoff, Klaus (10x), Vedder, Henk (9x)
3…c5 — 3.4% (153 parties)
Ambassadeurs : Leventic, Ivan (13x), Lida Garcia, Fernando (5x), Mueller, Michael (5x), Bell, Alan D (4x), Bromann, Thorbjorn (4x), Deglmann, Ludwig (4x), Paehtz, Elisabeth (3x), Vittorino, Carlo Giovanni (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3…a5 3…Qe7 3…Bxd2+ 3…c5
<1800 92 22% 32% 42% 1%
1800-2200 1003 38% 29% 30% 3%
2200-2600 2732 51% 23% 21% 4%
2600+ 161 52% 16% 29% 2%
Évolution par décennie (% des parties)
Décennie N parties 3…a5 3…Qe7 3…Bxd2+ 3…c5
1860s 1
1870s 1 100%
1910s 1 100%
1920s 2 50% 50%
1930s 34 79% 21%
1940s 12 75% 17% 8%
1950s 19 74% 26%
1960s 33 9% 70% 18% 3%
1970s 31 3% 87% 10%
1980s 258 36% 47% 15% 2%
1990s 771 45% 33% 19% 2%
2000s 1064 44% 29% 21% 4%
2010s 1902 48% 17% 30% 4%
2020s 356 42% 21% 33% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3…a5 48% 42% ▼ -6.2%
3…Qe7 17% 21% ▲ +3.4%
3…Bxd2+ 30% 33% ▲ +3.4%
3…c5 4% 4% -0.0%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 4 parties
Botvinnik, Mikhail — 3 parties
Ju, Wenjun — 3 parties
Karpov, Anatoly — 3 parties
Karpov, Aleksandr — 2 parties
Kramnik, Vladimir — 2 parties
Euwe, Max — 1 partie
Tal, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
3…a5 — 43.9% (1971 parties)
1960 — Veresov, Gavriil vs Bronstein, David I — 0-1 — Moscow RUS
1962 — Muehlberg, Siegfried vs Moehring, Guenther — 0-1 — GDR-ch Gera GER
1969 — Huguet, Francois vs Sanner, Michel — 1/2-1/2 — Pau
1975 — Johansson, Allan vs Krantz, Kjell — 0-1 — SWE/K corr
1980 — Karlsson, Mats 1976 vs Wicker, Kevin J — 1-0 — Politiken Cup
3…Qe7 — 26.6% (1193 parties)
1929 — Koltanowski, George vs Lazard, Frederic — 1/2-1/2 — Paris FRA
1931 — Michel, Walter vs Luckis, Marcos — 1-0 — Prague ol Prague CZE
1931 — Hoenlinger, Baldur vs Kunert, Franz — 1-0 — Vienna AUT
1931 — Lichtenstein, Bernhard vs Koenig, Imre — 0-1 — Vienna AUT
1932 — Korody Keresztely, Imre vs Mueller, Hans — 0-1 — Budapest HUN
3…Bxd2+ — 24.9% (1118 parties)
1877 — Riemann, Fritz vs Anderssen, Adolf — 1/2-1/2 — Breslau GER
1914 — Vidmar, Milan Sr vs Reti, Richard — 1-0 — Mannheim GER
1925 — Rubinstein, Akiba vs Levenfish, Grigory — 1-0 — Moscow RUS
1930 — Mueller, Hans vs Koenig, Imre — 1-0 — Vienna AUT
1931 — Glass, Eduard vs Koenig, Imre — 1/2-1/2 — Trebitsch mem14
3…c5 — 3.4% (153 parties)
1944 — Westbrook, Ed vs Cartier, Hank — 1-0 — ?
1963 — Martz, William vs Valderrama Wolf, Patricio — 1/2-1/2 — Illinois Open
1981 — Usurpator vs Storm Alvarez, Ailen — 0-1 — Utrecht NED
1986 — Breeuwer, Pieter vs Poels J — 1-0 — corr Netherlands
1988 — Barlov, Dragan vs Steinbacher, Matthias, Dr. — 1-0 — Switzerland