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A61n —
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bf4 Bg7 8.Qa4+
Les coups candidats
8…Bd7 — 96.2% (1664 parties)
Ambassadeurs : Bellon Lopez, Juan Manuel (10x), Wegner, Hannu (8x), Donchenko, Alexander (6x), Nunn, John D M (5x), Klinger, Josef (5x), Portisch, Lajos (5x), Winants, Luc (5x), Riazantsev, Alexander (5x)
8…Kf8 — 2.3% (39 parties)
Ambassadeurs : Mititelu, Gheorghe (1x), Bazan, Osvaldo (1x), Vinther, Michael (1x), Korchmar, Efim (1x), Lebredo Zaragoitia, Gerardo (1x), Ochoa De Echaguen, Francisco Javier (1x), Grigoryan, Karen A. (1x), Sandler, Leonid (1x)
8…Qd7 — 0.8% (14 parties)
Ambassadeurs : Toulzac, Pierre-Yves (1x), Randon, E. (1x), Lagen Morris (1x), Moody, David W (1x), Almada, Enrique (1x), Riela, A (1x), Csonkics, Tunde (1x), Cecchetto, Vanni (1x)
8…Nbd7 — 0.7% (12 parties)
Ambassadeurs : Benjamin, Joel (1x), Kraidman, Yair (1x), Hawksworth, John C (1x), Norwood, David R (1x), Rigolot, Matthieu (1x), Guillaume, Kamal (1x), Raupach, Gregor (1x), Kamphausen, Dieter (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Bd7 8…Kf8 8…Qd7 8…Nbd7
<1800 38 92% 3% 3% 3%
1800-2200 575 94% 3% 1% 1%
2200-2600 921 98% 2% 0% 1%
2600+ 28 100%
Évolution par décennie (% des parties)
Décennie N parties 8…Bd7 8…Kf8 8…Qd7 8…Nbd7
1950s 16 100%
1960s 19 89% 11%
1970s 49 98% 2%
1980s 275 96% 2% 1% 1%
1990s 156 99% 1%
2000s 237 95% 3% 1% 1%
2010s 829 96% 2% 1% 1%
2020s 149 95% 2% 1% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Bd7 96% 95% ▼ -1.1%
8…Kf8 2% 2% -0.2%
8…Qd7 1% 1% -0.1%
8…Nbd7 1% 2% ▲ +1.4%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 2 parties
Carlsen, Magnus — 1 partie
Parties historiques
8…Bd7 — 96.2% (1664 parties)
1955 — Uhlmann, Wolfgang vs Dely, Peter — 1-0 — Erfurt GER
1956 — Bertholdt, Dieter vs Johannsson, Ingi R — 1-0 — Copenhagen DEN
1957 — Berthold, Andreas vs Feuerstein, Arthur — 1-0 — It Reykjavik ISL
1957 — Shofman, Mikhail vs Brazilski Y — 1-0 — Moscow RUS
1958 — Florian, Tibor vs Kluger, Gyula — 0-1 — Budapest HUN
8…Kf8 — 2.3% (39 parties)
1960 — Mititelu, Gheorghe vs Bazan, Osvaldo — 1-0 — Leipzig GER
1960 — Vinther, Michael vs Korchmar, Efim — 1-0 — USSR
1979 — Cervenka, Imrich vs Sturc, Gustav — 1-0 — Bratislava SVK
1980 — Lebredo Zaragoitia, Gerardo vs Ochoa De Echaguen, Francisco Javier — 1-0 — Cienfuegos City CUB
1980 — Ivkov, Borislav vs Sahovic, Dragutin — 1-0 — Zemun
8…Qd7 — 0.8% (14 parties)
1984 — Lagen Morris vs Moody, David W — 0-1 — ?
1989 — Toulzac, Pierre-Yves vs Randon, E. — 1-0 — Chanac
1989 — Almada, Enrique vs Riela, A — 1-0 — chT URU
1989 — Csonkics, Tunde vs Cecchetto, Vanni — 1-0 — Caorle op Caorle ITA
2001 — Santos, Carlos Pereira dos vs Jedynak, Radoslaw — 1/2-1/2 — Panormo GRE
8…Nbd7 — 0.7% (12 parties)
1985 — Hawksworth, John C vs Norwood, David R — 1-0 — London, Bayswater
1986 — Benjamin, Joel vs Kraidman, Yair — 1-0 — Jerusalem ISR
2004 — Rigolot, Matthieu vs Guillaume, Kamal — 1-0 — France
2006 — Raupach, Gregor vs Kamphausen, Dieter — 1-0 — Bergisch Gladbach
2010 — Demac, Elias vs Notkevich, Benjamin Arvola — 1-0 — Caleta