E02 - Nbd7 6.Nf3 a6 7.Nc3 - Open, 5.Qa4+ Nbd7 6.Nf3 a6 7.Nc3

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E02 — Nbd7 6.Nf3 a6 7.Nc3 - Open, 5.Qa4+ Nbd7 6.Nf3 a6 7.Nc3
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Nf3 a6 7.Nc3
Eval: [+0.01]
Les coups candidats
7…Rb8 — 53.7% (283 parties)
Ambassadeurs : Andersson, Ulf (18x), Krivonosov, Oleg (8x), Sveshnikov, Evgeny (7x), Petrov, Vladimir (ENG) (3x), Bondarevsky, Igor (3x), Eliskases, Erich (3x), Tal, Mikhail (3x), Nogueiras Santiago, Jesus (3x)
7…Be7 — 34.3% (181 parties)
Ambassadeurs : Andersson, Ulf (7x), Korneev, Oleg (4x), Barcza, Gedeon (3x), Huebner, Robert (3x), Xu, Jun (3x), Agdestein, Simen (2x), Bany, Jerzy (2x), Kishnev, Sergey (2x)
7…c5 — 11.0% (58 parties)
Ambassadeurs : Burmakin, Vladimir (3x), Barkhagen, Jonas (2x), Fine, Reuben (1x), Dake, Arthur William (1x), Hearst, Eliot (1x), Evans, Larry (1x), Zagorovsky, Mikhail Pavlovich (1x), Brglez, Frantisek (1x)
7…Bd6 — 0.8% (4 parties)
Ambassadeurs : Petrov, Vladimir (ENG) (1x), Fine, Reuben (1x), Diez Gonzalez, Pedro Maria (1x), Soto Palomo, Cecilio (1x), Krivonosov, Oleg (1x), Bernotas, Arturs (1x), Berdnyk, Mariia (1x), Romanchuk, Viktor (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Rb8 7…Be7 7…c5 7…Bd6
<1800 4 25% 25% 50% —
1800-2200 81 49% 35% 15% 1%
2200-2600 332 53% 36% 10% 1%
2600+ 33 67% 33% — —
Évolution par décennie (% des parties)
Décennie N parties 7…Rb8 7…Be7 7…c5 7…Bd6
1930s 12 50% 33% 8% 8%
1940s 19 63% 37% — —
1950s 8 75% 12% 12% —
1960s 8 75% 25% — —
1970s 11 73% 9% 18% —
1980s 57 63% 25% 12% —
1990s 60 48% 37% 15% —
2000s 123 48% 37% 14% 1%
2010s 152 53% 38% 7% 1%
2020s 77 52% 34% 13% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Rb8 53% 52% ▼ -1.3%
7…Be7 38% 34% ▼ -4.4%
7…c5 7% 13% ▲ +5.8%
7…Bd6 1% 1% ▲ +0.6%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 4 parties
Kasparov, Garry — 3 parties
Alekhine, Alexander — 2 parties
Karpov, Anatoly — 2 parties
Euwe, Max — 1 partie
Karpov, Aleksandr — 1 partie
Gukesh D — 1 partie
Parties historiques
7…Rb8 — 53.7% (283 parties)
1938 — Petrov, Vladimir (ENG) vs Alekhine, Alexander — 1-0 — Margate ENG
1938 — Maderna, Carlos vs Alekhine, Alexander — 1/2-1/2 — Montevideo URU
1938 — Petrov, Vladimir (ENG) vs Pirc, Vasja — 0-1 — Lodz POL
1939 — Apscheneek, Fricis vs Petrov, Vladimir S. — 0-1 — Kemeri / Riga
1939 — Petrov, Vladimir (ENG) vs Eliskases, Erich — 1/2-1/2 — Rosario ARG
7…Be7 — 34.3% (181 parties)
1937 — Koshnitsky, Gregory vs Purdy, Cecil J S — 1/2-1/2 — corr Australia
1938 — Reshevsky, Samuel vs Fine, Reuben — 0-1 — Nederland
1938 — Adrianus Dingeman de Groot vs Euwe, Max — 0-1 — Amsterdam NED
1939 — Landau, Salo vs Van den Bosch, Johannes — 1/2-1/2 — Amsterdam_Hilversum
1943 — Barcza, Gedeon vs Szily — 1-0 — Hungarian CC Jubilee
7…c5 — 11.0% (58 parties)
1938 — Fine, Reuben vs Dake, Arthur William — 1-0 — New York, NY USA
1951 — Hearst, Eliot vs Evans, Larry — 1/2-1/2 — Forth Worth
1972 — Zagorovsky, Mikhail Pavlovich vs Brglez, Frantisek — 1/2-1/2 — corr Wch7
1978 — Rasmussen, Lars Garne vs Lombard, Andre — 0-1 — Mitropa Cup
1981 — Rantanen, Veikko vs Kolu, Antti — 0-1 — corr NS/I
7…Bd6 — 0.8% (4 parties)
1937 — Petrov, Vladimir (ENG) vs Fine, Reuben — 1/2-1/2 — Semmering AUT
2009 — Diez Gonzalez, Pedro Maria vs Soto Palomo, Cecilio — 1-0 — ICCF
2012 — Krivonosov, Oleg vs Bernotas, Arturs — 1/2-1/2 — Riga LAT
2021 — Berdnyk, Mariia vs Romanchuk, Viktor — 1-0 — Cherkasy UKR