A61i - 7…Bg7 (1954)

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A61i —
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bf4 Bg7
Les coups candidats
Ambassadeurs : Bellon Lopez, Juan Manuel (10x), Wegner, Hannu (7x), Donchenko, Alexander (6x), Nunn, John D M (5x), Klinger, Josef (5x), Portisch, Lajos (5x), Winants, Luc (5x), Riazantsev, Alexander (5x)
8.h3 — 13.0% (319 parties)
Ambassadeurs : Indjic, Aleksandar (7x), Gunina, Valentina (4x), Lehaci, Miruna-Daria (4x), Kozul, Zdenko (3x), Ahmadzada, Ahmad (3x), Yang, Zilong (3x), Tal, Mikhail (2x), Ivanov, Mikhail M. (2x)
8.e3 — 10.3% (252 parties)
Ambassadeurs : Garcia Alarcon, Alvaro (3x), Kosic, Dragan (3x), Roselli Mailhe, Bernardo (3x), Rychagov, Aleksandr (3x), Donchenko, Alexander (3x), Kunin, Vitaly (3x), Lerner, Konstantin Z (2x), Agzamov, Georgy (2x)
Ambassadeurs : Abarca Aguirre, Manuel (3x), Tukmakov, Vladimir B (3x), Tirabassi, Maurizio (2x), Andersen, Jens Knud (2x), Wedberg, Tom (2x), Malaniuk, Vladimir P (2x), Van der Sterren, Paul (2x), Guseinov, Aidyn (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.Qa4+ 8.h3 8.e3 8.e4
<1800 65 58% 17% 9% 12%
1800-2200 806 71% 15% 7% 3%
2200-2600 1326 69% 13% 13% 4%
2600+ 45 62% 18% 18% —
Évolution par décennie (% des parties)
Décennie N parties 8.Qa4+ 8.h3 8.e3 8.e4
1950s 21 76% 14% 5% 5%
1960s 28 68% 11% 11% 4%
1970s 54 91% — 9% —
1980s 316 86% 0% 2% 10%
1990s 201 78% 2% 5% 12%
2000s 318 74% 5% 9% 9%
2010s 1128 73% 14% 9% 1%
2020s 388 38% 34% 24% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.Qa4+ 73% 38% ▼ -35.0%
8.h3 14% 34% ▲ +19.7%
8.e3 9% 24% ▲ +15.2%
8.e4 1% 2% ▲ +1.1%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 3 parties
Tal, Mikhail — 2 parties
Kasparov, Garry — 2 parties
Anand, Viswanathan — 1 partie
Carlsen, Magnus — 1 partie
Ding, Liren — 1 partie
Parties historiques
8.Qa4+ — 70.3% (1726 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.h3 — 13.0% (319 parties)
1954 — Tal, Mikhail vs Spassky, Boris Vasily — 0-1 — ?
1954 — Keres, Paul Petrovich vs Tal, Mikhail — 1/2-1/2 — Tallinn m Tallinn EST
1954 — Lutikov, Anatoly S vs Spassky, Boris V. — 1/2-1/2 — Leningrad ch22-SU sf
1961 — Simagin, Vladimir vs Sherbakov, Vitaly — 1-0 — Sochi RUS
1961 — Vistaneckis, Isakas vs Zilber, Israel — 1/2-1/2 — Palanga
8.e3 — 10.3% (252 parties)
1959 — Kupka, Slavoj vs Weiss, Augustin — 1-0 — Bratislava SVK
1960 — Reynolds, D Ian W vs Taylor, A (tony) — 1/2-1/2 — Leicester
1962 — Simagin, Konstantin vs Gusiev, Vladimir — 1-0 — CKSz ch
1965 — Gusev, Yuri S vs Arseniev, Vladimir V. — 1/2-1/2 — Cheboksary
1970 — Shamkovich, Leonid vs Planinc, David — 0-1 — Varna BUL
8.e4 — 4.3% (105 parties)
1957 — Haggqvist, Bjorn Karl vs Yepez, Olavo — 1/2-1/2 — Reykjavik ISL
1969 — Avram Julka vs Gilden, Lawrence — 0-1 — USA
1982 — Abarca Aguirre, Manuel vs Wedberg, Tom — 1/2-1/2 — Lucerne SUI
1982 — Abarca Aguirre, Manuel vs Wedberg, Tom — 1/2-1/2 — Luzern olm
1982 — Girault, Eric vs Wheeler, Robert — 1-0 — Luzern olm