A90x - 4.Bg2 c6 5.Nf3 d5 6.O-O Bd6 7.b3 [+0.33]

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A90x —
1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 c6 5.Nf3 d5 6.O-O Bd6 7.b3
Eval: [+0.33]
Les coups candidats
7…Qe7 — 79.9% (4954 parties)
Ambassadeurs : Gleizerov, Evgeny (39x), Ulybin, Mikhail (33x), Moskalenko, Viktor (31x), Vaisser, Anatoly (27x), Prokopp, Heinz (21x), Agdestein, Simen (20x), Cvak, Rudolf (19x), Schmittdiel, Eckhard (16x)
7…O-O — 17.1% (1059 parties)
Ambassadeurs : Charochkina, Daria (7x), Ikanov, Imre (6x), Stock, Juergen (5x), Llagaria Vidal, Eduardo (5x), Ragozin, Viacheslav (4x), Qi, Jingxuan (3x), Nickoloff, Bryon (3x), Skog, Niklas (3x)
7…Nbd7 — 1.5% (95 parties)
Ambassadeurs : Llagaria Vidal, Eduardo (7x), Freitag, Julia (4x), Harzer, Paul (2x), Krol, Wladyslaw (2x), Muehlberg, Siegfried (1x), Birkholz, Hans Joachim (1x), Benko, Francisco (1x), Puiggros, Guillermo (1x)
7…b6 — 0.4% (24 parties)
Ambassadeurs : Bricard, Emmanuel (2x), Oba, Ana Claudia De Oliveira (2x), Van Wely, Loek (1x), Djurhuus, Rune (1x), Harestad, Thor Geir (1x), Agdestein, Espen (1x), Llopis de Aysa, Manuel (1x), Pinos Lara, Juan Manuel (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Qe7 7…O-O 7…Nbd7 7…b6
<1800 123 57% 34% 5% 2%
1800-2200 2338 73% 24% 2% 0%
2200-2600 2946 90% 8% 1% 0%
2600+ 63 97% 3% — —
Évolution par décennie (% des parties)
Décennie N parties 7…Qe7 7…O-O 7…Nbd7 7…b6
1930s 4 — 100% — —
1940s 13 46% 54% — —
1950s 25 40% 48% 12% —
1960s 17 41% 53% 6% —
1970s 30 50% 37% 10% —
1980s 359 88% 10% 1% 1%
1990s 1367 83% 15% 1% 0%
2000s 1738 80% 17% 2% 0%
2010s 2336 78% 18% 2% 1%
2020s 312 83% 14% 2% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Qe7 78% 83% ▲ +4.9%
7…O-O 18% 14% ▼ -4.4%
7…Nbd7 2% 2% +0.5%
7…b6 1% 0% ▼ -0.5%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 4 parties
Carlsen, Magnus — 3 parties
Kramnik, Vladimir — 2 parties
Kasparov, Garry — 1 partie
Tal, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Anand, Viswanathan — 1 partie
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Parties historiques
7…Qe7 — 79.9% (4954 parties)
1942 — Winter, William vs Sallay, Roland — 0-1 — Budapest HUN
1947 — Petrosian, Tigran V. vs Pirtskhlava — 1-0 — Tournament Tbilisi GEO
1948 — Lilienthal, Andor vs Ragozin, Viacheslav — 1/2-1/2 — Saltsjobaden SWE
1949 — Alatortsev, Vladimir N. vs Goldberg, Grigory A — 1-0 — Moscow RUS
1949 — Flohr, Salo vs Goldberg, Grigory A — 1/2-1/2 — Moskou ch-URS
7…O-O — 17.1% (1059 parties)
1937 — Fine, Reuben vs Bondarevsky, Igor — 1-0 — Moscow RUS
1938 — Pirc, Vasja vs Toth, Bela — 1-0 — Ljubljana
1939 — Mueller, Helge vs Engels, Ludwig — 1/2-1/2 — Bad Oeynhausen ch-GER
1939 — Botvinnik, Mikhail vs Ragozin, Viacheslav — 1/2-1/2 — Leningrad ch-URS
1942 — Vistaneckis, Isakas vs Ragozin, Viacheslav — 1/2-1/2 — Sverdlovsk
7…Nbd7 — 1.5% (95 parties)
1954 — Muehlberg, Siegfried vs Harzer, Paul — 1/2-1/2 — Schkopau
1954 — Birkholz, Hans Joachim vs Harzer, Paul — 0-1 — Schkopau
1958 — Benko, Francisco vs Puiggros, Guillermo — 0-1 — Buenos Aires ARG
1960 — Loftsson, Julius H vs Thacker, Ronald — 1/2-1/2 — Oakland
1970 — Andersen, Morten Kamp vs Leighton, G. — 0-1 — Chicago, IL USA
7…b6 — 0.4% (24 parties)
1988 — Van Wely, Loek vs Djurhuus, Rune — 0-1 — Arnhem ech-jr
1989 — Harestad, Thor Geir vs Agdestein, Espen — 1-0 — Stavanger NOR
1997 — Campos Moreno, Javier B. vs Arizmendi Martinez, Julen Luis — 1-0 — Mondariz ESP
1997 — Zimmermann, Martin vs Bloess, Andre — 1-0 — GER
1998 — Llopis de Aysa, Manuel vs Pinos Lara, Juan Manuel — 1-0 — La Pobla de Lillet