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D29b — QGA: Classical (1910)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Bb7 9.Nc3
Les coups candidats
9…Nbd7 — 83.8% (763 parties)
Ambassadeurs : Hoi, Carsten (11x), Rapaka Samuel Paul (7x), Miguel, Nahuel (5x), Leitao, Rafael (5x), Clarke, Peter (4x), Ribli, Zoltan (4x), Slipak, Sergio (4x), Ibragimov, Ildar (4x)
9…Be7 — 5.7% (52 parties)
Ambassadeurs : Bisguier, Arthur B (2x), Pachman, Ludek (2x), Ojanen, Kaarle S (1x), Pilnik, Herman (1x), Kluger, Gyula (1x), Furman, Semyon (1x), Oestreich, Reinhard (1x), Beerheide, Walther (1x)
Ambassadeurs : Honan, N. (1x), Akonde Marshall (1x), Barden, Leonard (1x), Clough, Fred (1x), Gusev, Yuri S (1x), Estrin, Yakov (1x), Janssen, Lieselotte (1x), Espig, Gesine (1x)
9…cxd4 — 2.6% (24 parties)
Ambassadeurs : Pilgaard, Kim (2x), Hoi, Carsten (2x), Yepez, Olavo (1x), Pena Felix, Gustavo Adolfo (1x), Abramovich Furman, Semyon (1x), Bannik, Anatolij (1x), Kalugin, Sergei (1x), Feoktistov, Alexey A. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Nbd7 9…Be7 9…Nc6 9…cxd4
<1800 28 68% 7% 7% 4%
1800-2200 215 80% 4% 4% 5%
2200-2600 483 86% 6% 3% 2%
2600+ 15 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 9…Nbd7 9…Be7 9…Nc6 9…cxd4
1950s 38 61% 26% 8% 3%
1960s 58 88% 3% — 2%
1970s 19 95% — 5% —
1980s 73 89% 5% 4% —
1990s 176 89% 2% 2% 2%
2000s 257 81% 6% 4% 4%
2010s 219 84% 4% 3% 3%
2020s 71 82% 10% 3% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Nbd7 84% 82% ▼ -2.8%
9…Be7 4% 10% ▲ +5.7%
9…Nc6 3% 3% -0.4%
9…cxd4 3% 1% ▼ -1.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Anand, Viswanathan — 1 partie
Botvinnik, Mikhail — 1 partie
Parties historiques
9…Nbd7 — 83.8% (763 parties)
1950 — Smyslov, Vasily vs Keres, Paul Petrovich — 1/2-1/2 — Budapest HUN
1950 — Winter, William vs Newman, Richard — 1-0 — Buxton
1950 — Platz, Hans vs Herrmann, Ludwig — 1-0 — Soemmerda GER
1952 — Porrecca, Giorgio vs Lokvenc, Josef — 1/2-1/2 — Helsinki FIN
1952 — Rapaka Samuel Paul vs Lasker, Edward — 1-0 — Havana CUB
9…Be7 — 5.7% (52 parties)
1952 — Bolbochan, Jacobo vs Michel, Clement Paul — 1/2-1/2 — Mar del Plata ARG
1953 — Ojanen, Kaarle S vs Pilnik, Herman — 1/2-1/2 — Mar del Plata ARG
1954 — Pachman, Ludek vs Wade, Robert G — 1/2-1/2 — Bucharest ROU
1955 — Filip, Miroslav vs Bisguier, Arthur B — 1/2-1/2 — Zagreb CRO
1955 — Fuchs, Reinhart vs Uhlmann, Wolfgang — 0-1 — Erfurt GER
9…Nc6 — 3.4% (31 parties)
1950 — Honan, N. vs Akonde Marshall — 1-0 — England
1957 — Gusev, Yuri S vs Estrin, Yakov — 1-0 — Moscow RUS
1959 — Barden, Leonard vs Clough, Fred — 1/2-1/2 — York ch-BCF
1977 — Janssen, Lieselotte vs Espig, Gesine — 1/2-1/2 — Frankfurt/Oder
1981 — Behrens, Harald vs Paulsen, Dirk — 1-0 — NRW-Niedersachsen
9…cxd4 — 2.6% (24 parties)
1958 — Abramovich Furman, Semyon vs Bannik, Anatolij — 0-1 — Riga LAT
1969 — Yepez, Olavo vs Pena Felix, Gustavo Adolfo — 1-0 — Quito/Guayaquil
1992 — Klinger, Josef vs Hinterberger, Werner — 1-0 — Oberwart AUT
1994 — Moeller, Maarten vs Dauenheimer, Torsten — 1-0 — Wolfste ch-RLPF U20
1998 — Ballin, Andre vs Drewitz, Horst — 1-0 — Mecklenburg VP