D21t - 3…a6 - Alekhine Defense (1961)

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D21t — Alekhine Defense (1961)
1.d4 d5 2.c4 dxc4 3.Nf3 a6
Les coups candidats
Ambassadeurs : Baburin, Alexander (33x), Volodarsky, Yury Aleksandrovich (33x), Yakovich, Yuri (21x), Sadler, Matthew D (20x), Fancsy, Imre (20x), Alekseenko, Kirill (19x), Bagirov, Vladimir (17x), Dlugy, Maxim (16x)
Ambassadeurs : Mayer, Istvan (6x), Baburin, Alexander (5x), Donchenko, Anatoly (5x), Alekseenko, Kirill (5x), Bagirov, Vladimir (4x), Mayer, Steven F. (4x), Sadler, Matthew D (4x), Yakovich, Yuri (4x)
Ambassadeurs : Bakheet Farag (5x), Henke, Simon (5x), Bronstein, David I (4x), Kohlweyer, Bernd (4x), Schmidt, Roland (4x), ? (3x), Baburin, Alexander (3x), Wagner, Christian (3x)
4.Nc3 — 1.6% (75 parties)
Ambassadeurs : Sliwa, Bogdan (2x), Fuster, Geza (2x), Varga, Zoltan (2x), Donchenko, Anatoly (2x), Herrmann, Ludwig (1x), Knaak, Rainer (1x), Walter, Guenter (1x), Lazarev, Efim M. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.e3 4.a4 4.e4 4.Nc3
<1800 142 61% 23% 8% 3%
1800-2200 1184 61% 29% 6% 2%
2200-2600 2426 76% 16% 5% 1%
2600+ 141 84% 11% 4% 1%
Évolution par décennie (% des parties)
Décennie N parties 4.e3 4.a4 4.e4 4.Nc3
1950s 215 81% 11% 6% 1%
1960s 146 75% 12% 6% 6%
1970s 83 69% 19% 10% —
1980s 357 71% 18% 10% 1%
1990s 913 68% 18% 10% 3%
2000s 1029 71% 21% 5% 2%
2010s 1374 71% 22% 5% 1%
2020s 512 75% 20% 3% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.e3 71% 75% ▲ +3.9%
4.a4 22% 20% ▼ -1.6%
4.e4 5% 3% ▼ -2.7%
4.Nc3 1% 1% +0.2%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 10 parties
Karpov, Anatoly — 10 parties
Botvinnik, Mikhail — 3 parties
Kramnik, Vladimir — 3 parties
Tal, Mikhail — 2 parties
Kasparov, Garry — 2 parties
Ju, Wenjun — 2 parties
Carlsen, Magnus — 2 parties
Parties historiques
4.e3 — 71.3% (3299 parties)
1950 — Porreca, Giorgio vs Postpischl, Domenico — 1-0 — Sorrento ch ITA
1950 — Porreca, Alessio vs Postpischl — 1-0 — Sorrento ch
1950 — Alexander, Levi vs Rushton, R. — 1-0 — corr ENG
1950 — Donner, Jan-Hein vs Van den Berg, Carel B — 0-1 — Amsterdam ch-NED
1950 — Stahlberg, Gideon vs Foltys, Jan — 1-0 — Amsterdam NED
4.a4 — 19.6% (908 parties)
1950 — Zapata Vinces, Mario vs Letelier Martner, Rene — 1/2-1/2 — Dubrovnik olm
1950 — Novotelnov, Nikolai vs Flohr, Salo — 0-1 — URS-ch sf Tartu
1951 — Lopez, Alberto vs Rivise, Irving — 0-1 — Los Angeles, CA USA
1951 — Staldi, Cherubino vs Emden, Hermann — 1/2-1/2 — Venice ITA
1952 — Suyker, A vs Pelton, Edwin — 1-0 — cr.
4.e4 — 6.4% (294 parties)
1950 — Borisenko, Georgy K vs Flohr, Salo — 0-1 — Moskou ch-URS
1951 — Berzzarins Gunars E vs Bowman, DN. — 1/2-1/2 — ?
1952 — Balanel, Ion vs Gawlikowski, Stanislaw — 1-0 — Miedzyzdroje
1953 — Bronstein, David I vs Beilin, Mikhail — 1-0 — Moscow RUS
1953 — Bronstein, David I vs Simagin, Vladimir — 1/2-1/2 — Moscow-ch Moscow RUS
4.Nc3 — 1.6% (75 parties)
1951 — Herrmann, Ludwig vs Sliwa, Bogdan — 1-0 — Sopot
1957 — Potter, Brian vs Taylor, Jack — 1-0 — Vancouver BC CAN
1959 — Nurmamedov, Mammed vs Soloviov, Mikhail — 1/2-1/2 — Leningrad RUS
1962 — Lazarev, Efim M. vs Rostovtsev, Yuri — 1-0 — ?
1962 — Kolbak, Jens vs Briem, Stefan — 1-0 — ?