D26s - 7.Nc3 - QGA: Classical (1900)

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D26s — QGA: Classical (1900)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O Nc6 7.Nc3
Les coups candidats
7…a6 — 49.1% (625 parties)
Ambassadeurs : Cervantes Landeiro, Thalia (9x), Gaponenko, Inna (8x), Glek, Igor (8x), Royal, Shreyas (6x), Xu, Xiangyu (6x), Reza, Wojciech (5x), Szulc, Stanislaw (5x), Anton Guijarro, David (5x)
7…cxd4 — 29.2% (372 parties)
Ambassadeurs : Drozdovskij, Yuri (7x), Wang, Rachel Zihan (5x), ? (4x), Cespedes Llaverias, Llibert (3x), Fuchs, Reinhart (2x), Passerotti, Pierluigi (2x), Ivanov, Jordan (2x), Eugenio, Sarah De Oliveira (1x)
7…Be7 — 20.4% (259 parties)
Ambassadeurs : Razin, Vadim (3x), Martinez Reyes, Pedro Ramon (3x), Kholmov, Ratmir D (2x), Niklasson, Christer (2x), Bosch van Rosenthal, Edzard (2x), Psakhis, Lev (2x), Narciso Dublan, Marc (2x), Baron Rodriguez, Jesus (2x)
7…Bd7 — 0.7% (9 parties)
Ambassadeurs : A, Sergey (1x), Dangauthier, Jean Philippe (1x), Dickau, Daniel (1x), Ortega Morales, Javier (1x), Freisler, Pavel (1x), Mozny, Milos (1x), Vasquez, Juan Carlos (1x), Kyllo, Richard (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…a6 7…cxd4 7…Be7 7…Bd7
<1800 94 32% 45% 20% 1%
1800-2200 426 45% 32% 21% 1%
2200-2600 558 54% 25% 21% 0%
2600+ 58 93% 2% 5% —
Évolution par décennie (% des parties)
Décennie N parties 7…a6 7…cxd4 7…Be7 7…Bd7
1950s 12 33% 50% 17% —
1960s 16 50% 6% 38% —
1970s 22 45% 18% 36% —
1980s 32 41% 31% 25% —
1990s 163 39% 34% 25% 2%
2000s 349 38% 37% 23% 1%
2010s 359 44% 31% 23% 1%
2020s 319 73% 17% 9% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…a6 44% 73% ▲ +29.1%
7…cxd4 31% 17% ▼ -14.2%
7…Be7 23% 9% ▼ -13.7%
7…Bd7 1% 0% ▼ -0.6%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Ding, Liren — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
7…a6 — 49.1% (625 parties)
1952 — De Souza Mendes, Joao vs Gruenfeld, Ernst — 1/2-1/2 — Vienna 5253 Vienna AUT
1952 — Gadalinski, Jan vs Litmanowicz, Wladyslaw — 1/2-1/2 — Katowice POL
1958 — Donner, Jan-Hein vs Beck, Alec — 1/2-1/2 — Munchen olm
1959 — Miguel, Nahuel vs De Souza Mendes, Joao — 1-0 — Mar del Plata ARG
1960 — Brandwein, Steve vs Curdo, John — 0-1 — Massachusetts
7…cxd4 — 29.2% (372 parties)
1950 — Eugenio, Sarah De Oliveira vs Primavera, Giuseppe — 1/2-1/2 — Venice ITA
1952 — Amaro, Lucas Ibrair vs Sanchez, Jose — 1/2-1/2 — Buenos Aires ARG
1953 — Derenbach, Horst vs Hantke, Rolf — 1/2-1/2 — Soest NED
1957 — Bronstein, David I vs Fuchs, Reinhart — 1-0 — Gotha GER
1958 — Blackstone, John vs Metz, Frank A — 1-0 — Barbera Santa CA
7…Be7 — 20.4% (259 parties)
1954 — Ilivitsky, Georgy A vs Kholmov, Ratmir D — 1/2-1/2 — Kiev ch-URS
1959 — Litmanowicz, Wladyslaw vs Buljovcic, Ivan — 1/2-1/2 — Warsaw POL
1963 — Lengyel, Laszlo vs Lokvenc, Josef — 1-0 — Miskolc Asztalos mem
1966 — Pomar Salamanca, Arturo vs Bosch van Rosenthal, Edzard — 1-0 — Amsterdam NED
1966 — Visier Segovia, Fernando vs Wade, Robert G — 0-1 — Palma de Majorca ESP
7…Bd7 — 0.7% (9 parties)
1990 — Freisler, Pavel vs Mozny, Milos — 1/2-1/2 — Prague CZE
1998 — Dickau, Daniel vs Ortega Morales, Javier — 1-0 — Villa Ballester ARG
1999 — A, Sergey vs Dangauthier, Jean Philippe — 0-1 — ?
2001 — Fedoseeva, Svetlana vs Strazhnik Nadezhda — 1-0 — Evpatoria
2003 — Kaeck, Ralf vs Horther-Schneider, Elsbeth — 1/2-1/2 — GER