D28e - 8.Bd3 - QGA: Classical (1911)

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D28e — QGA: Classical (1911)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bd3
Les coups candidats
Ambassadeurs : Rashkovsky, Nukhim N (9x), Neverov, Valeriy (7x), Golz, Werner (5x), Borisenko, Georgy K (4x), Keres, Paul (4x), Portisch, Lajos (4x), Lputian, Smbat (4x), Granda Zuniga, Julio E (4x)
8…Bb7 — 30.2% (281 parties)
Ambassadeurs : Byrne, Robert E (3x), Korneva, Marina (3x), Borisenko, Georgy K (2x), Korchnoi, Viktor (2x), Pavlov, Mircea-Sergiu-Aurelian (2x), Diez del Corral, Jesus (2x), Durao, Joaquim (2x), Neverov, Valeriy (2x)
8…Nbd7 — 11.3% (105 parties)
Ambassadeurs : Ribli, Zoltan (2x), Naumkin, Igor (2x), Laghetti, Gaetano (2x), Goncharenko, Georgy (2x), Sánchez Rivero, Miguel (2x), Hadi, Adrian (1x), Klovans, Janis (1x), Reicher, Emanoil-George (1x)
8…Nc6 — 7.8% (73 parties)
Ambassadeurs : Pilnik, Herman (3x), Polugaevsky, Lev (2x), Toprover, Viktor G. (2x), Mantovani, Renzo (2x), Gruenfeld, Ernst (1x), Tiemann, Christoph (1x), Dierks, Joern (1x), Shocron, Ruben (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…cxd4 8…Bb7 8…Nbd7 8…Nc6
<1800 29 55% 21% 7% 7%
1800-2200 231 43% 32% 13% 6%
2200-2600 516 47% 31% 13% 8%
2600+ 15 53% 33% 7% 7%
Évolution par décennie (% des parties)
Décennie N parties 8…cxd4 8…Bb7 8…Nbd7 8…Nc6
1950s 35 46% 23% — 29%
1960s 39 49% 36% 5% 5%
1970s 15 33% 53% — 7%
1980s 83 61% 22% 6% 10%
1990s 173 46% 36% 8% 8%
2000s 228 44% 34% 9% 9%
2010s 259 51% 26% 14% 5%
2020s 99 36% 24% 28% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…cxd4 51% 36% ▼ -14.6%
8…Bb7 26% 24% ▼ -2.0%
8…Nbd7 14% 28% ▲ +14.4%
8…Nc6 5% 6% ▲ +1.4%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Smyslov, Vladimir — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
8…cxd4 — 47.3% (440 parties)
1950 — Geller, Efim P. vs Alatortsev, Vladimir N. — 1/2-1/2 — Moskou ch-URS
1952 — Fuderer, Andrija vs Stoltz, Gösta — 1-0 — Belgrade SRB
1952 — Bozic, Aleksandar vs Vukovic, Sava — 1/2-1/2 — Belgrade SRB
1952 — Anay Barche vs Keres, Paul — 0-1 — Budapest HUN
1955 — Shocron, Ruben vs Dodero, Emilio — 1-0 — Buenos Aires ARG
8…Bb7 — 30.2% (281 parties)
1950 — Van den Berg, Cees vs Van Steenis, Ir — 1-0 — Leiden NED
1951 — Averbakh, Yuri L vs Aronin, Lev — 1-0 — Moskou ch-URS
1952 — Eken, Max vs Van Steenis, Hendrik Jan — 1-0 — Enschede NED
1953 — Zemgalis, Elmars vs McCormick, Edgar T — 1-0 — Milwaukee, WI USA
1956 — Abanin, Vladimir vs Khalilbeili, Sultan — 1-0 — Tbilisi GEO
8…Nbd7 — 11.3% (105 parties)
1960 — Hadi, Adrian vs Klovans, Janis — 0-1 — Leningrad RUS
1963 — Reicher, Emanoil-George vs Szabo, Iuliu inactive — 1-0 — Bucharest ROU
1981 — Przewoznik, Jan vs Nowak, Ignacy — 1-0 — Warszawa POL-38ch
1986 — Bogner, Harold vs Levin, David — 1-0 — Somerset
1987 — Ribli, Zoltan vs Xu, Jun — 1-0 — Subotica SRB
8…Nc6 — 7.8% (73 parties)
1951 — van Scheltinga, Theo Daniel vs Alexander Ronald Cheng — 0-1 — Birmingham ENG
1952 — Gruenfeld, Ernst vs Pilnik, Herman — 1/2-1/2 — Belgrade SRB
1952 — Wade, Robert G vs Pilnik, Herman — 1-0 — Saltsjobaden SWE
1952 — Keres, Marken vs Smyslov, Vasily — 1-0 — Budapest HUN
1952 — Kharitonov, Andrei vs Smyslov, Vladimir — 1-0 — It Budapest HUN