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D20b — Old Variation (1966)
1.d4 d5 2.c4 dxc4 3.e3
Les coups candidats
Ambassadeurs : Belenkaya, Dina (30x), Ibragimov, Ildar (23x), Malaniuk, Vladimir P (23x), Ilyin, Pavel Egorovich (23x), Vera Gonzalez-Quevedo, Reynaldo (22x), fperrot (21x), Sokolov, Ivan (21x), Lesiege, Alexandre (18x)
Ambassadeurs : Korchut, Adam (22x), Alekseenko, Kirill (19x), Matulovic, Milan (16x), Stavrakakis, Vasilios (15x), Hjorth, Jesper (12x), Westerinen, Heikki M.J. (11x), ? (11x), Semcesen, Daniel (10x)
Ambassadeurs : Rublevsky, Sergei (14x), Baburin, Alexander (13x), Andrason, Karl Oddur (13x), Malaniuk, Vladimir P (12x), Skripchenko, Almira (11x), Yakovich, Yuri (10x), Dlugy, Maxim (9x), Jakobi, Wilfried (8x)
Ambassadeurs : Sermek, Drazen (23x), Raetsky, Alexander (13x), Gyimesi, Zoltan (10x), Varga, Zoltan (9x), Mikhalchishin, Adrian (8x), Grund, Holger (8x), Vaulin, Alexander P. (6x), Malaniuk, Vladimir P (5x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3…Nf6 3…e5 3…e6 3…c5
<1800 1073 42% 18% 14% 3%
1800-2200 4231 45% 29% 12% 4%
2200-2600 5773 53% 26% 10% 5%
2600+ 353 61% 21% 12% 3%
Évolution par décennie (% des parties)
Décennie N parties 3…Nf6 3…e5 3…e6 3…c5
1950s 56 52% 39% 2% 4%
1960s 67 48% 36% — 1%
1970s 41 41% 37% 5% 5%
1980s 333 58% 28% 6% 3%
1990s 2096 55% 16% 13% 8%
2000s 3941 53% 18% 13% 4%
2010s 5224 45% 30% 10% 3%
2020s 2095 51% 29% 8% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3…Nf6 45% 51% ▲ +6.4%
3…e5 30% 29% ▼ -0.5%
3…e6 10% 8% ▼ -2.2%
3…c5 3% 3% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Gukesh D — 6 parties
Carlsen, Magnus — 5 parties
Karpov, Anatoly — 3 parties
Tal, Mikhail — 2 parties
Botvinnik, Mikhail — 2 parties
Smyslov, Vladimir — 1 partie
Kramnik, Vladimir — 1 partie
Ju, Wenjun — 1 partie
Hou, Yifan — 1 partie
Parties historiques
3…Nf6 — 50.0% (6930 parties)
1951 — Sumar, Julio vs Martin M Pereira — 1/2-1/2 — Mar del Plata ARG
1951 — Bouwmeester, Hans vs Van Steenis, Hendrik Jan — 0-1 — Detmold
1952 — Makarczyk, Kazimierz vs Litmanowicz, Wladyslaw — 1-0 — Katowice POL
1952 — Keres, Marken vs Smyslov, Vasily — 1-0 — Budapest HUN
1952 — Kharitonov, Andrei vs Smyslov, Vladimir — 1-0 — It Budapest HUN
3…e5 — 24.1% (3335 parties)
1950 — Machate, Gottlieb vs Teschner, Rudolf — 1/2-1/2 — Bad Pyrmont GER
1950 — Sokolsky, Alexey vs Mikenas, Vladas — 0-1 — Moskou ch-URS
1950 — Letelier Martner, Rene vs Kramer, Gerald — 0-1 — Dubrovnik olm
1951 — Klein, Eberhard vs Alexander Ronald Cheng — 1-0 — Birmingham ENG
1951 — Kearney, G A vs Kerr, W D — 1-0 — Belfast IRL
3…e6 — 10.6% (1474 parties)
1956 — Shaw, Jack F vs Van Sweden, EJ. — 1-0 — Oklahoma City, OK USA
1974 — Nemet, Ivan vs Buljovcic, Ivan — 1-0 — Yugoslavia
1975 — De Bruycker, Bernard vs Verstraeten, Roland — 1/2-1/2 — Ghent
1981 — Agee, L. vs Gaffigan, T. — 1-0 — ?
1984 — Beliavsky, Alexander G vs Mikhalchishin, Adrian — 1/2-1/2 — Lvov ch-SU
3…c5 — 4.2% (580 parties)
1956 — Kolvig, Bent vs Haahr, Thorkild — 1-0 — Copenhagen DEN
1957 — Uhlrich, Linus vs Seppelt, Alfred — 1-0 — Berlin GER
1960 — Aggos, Alexandros vs Lundin, Erik — 1/2-1/2 — Leipzig GER
1970 — Malagon Martinez, Alberto Jose vs Matsumoto, Yoshitaro — 1/2-1/2 — Siegen olm
1976 — Moody, David W vs Gross, Glen — 1/2-1/2 — ?