D78g - 7.Qb3 - Neo-Gruenfeld

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D78g — Neo-Gruenfeld
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.Qb3
Les coups candidats
Ambassadeurs : Vachier-Lagrave, Maxime (15x), Dreev, Aleksey (12x), Loginov, Valery A (9x), Banusz, Tamas (9x), Inarkiev, Ernesto (6x), Jumabayev, Rinat (6x), Gabuzyan, Hovhannes (6x), Wojtaszek, Radoslaw (6x)
Ambassadeurs : Loginov, Valery A (4x), Tan, Zhongyi (4x), Forintos, Gyozo V (3x), Kochyev, Alexander (3x), Szmetan, Jorge (3x), Wojtaszek, Radoslaw (3x), Gupta, Abhijeet (3x), Sutovsky, Emil (3x)
7…a5 — 13.7% (287 parties)
Ambassadeurs : Socko, Bartosz (5x), Svane, Rasmus (5x), Khenkin, Igor (3x), Loginov, Valery A (3x), Bures, Jaroslav (3x), Anderson, Clarence (3x), Dreev, Aleksey (3x), Goldin, Alexander (2x)
7…Nbd7 — 7.5% (158 parties)
Ambassadeurs : Lerner, Konstantin Z (2x), Shainswit, George (1x), Woliston, Philip (1x), Zilber, Israel (1x), Solmanis, Zigfrids (1x), De Souza Mendes, Joao (1x), Cruz Filho, Oswaldo (1x), Raizman, Maurice (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Qb6 7…dxc4 7…a5 7…Nbd7
<1800 18 22% 39% 6% 28%
1800-2200 498 30% 33% 9% 15%
2200-2600 1249 47% 27% 16% 4%
2600+ 209 56% 21% 21% —
Évolution par décennie (% des parties)
Décennie N parties 7…Qb6 7…dxc4 7…a5 7…Nbd7
1920s 2 — 100% — —
1930s 4 25% 50% — —
1940s 3 33% 33% — 33%
1950s 16 19% 50% — 12%
1960s 28 36% 29% — 11%
1970s 16 62% 25% — 6%
1980s 39 38% 33% 13% 5%
1990s 225 36% 35% 6% 12%
2000s 291 26% 38% 10% 13%
2010s 1108 51% 26% 10% 6%
2020s 369 34% 21% 35% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Qb6 51% 34% ▼ -16.6%
7…dxc4 26% 21% ▼ -4.6%
7…a5 10% 35% ▲ +25.3%
7…Nbd7 6% 4% ▼ -2.3%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 5 parties
Ju, Wenjun — 4 parties
Gukesh D — 3 parties
Kramnik, Vladimir — 3 parties
Carlsen, Magnus — 1 partie
Parties historiques
7…Qb6 — 42.4% (890 parties)
1934 — Heinicke, Herbert vs Krause, Kurt — 1-0 — Aachen GER
1947 — Palme, Rudolf vs Kraus, Rudolf — 1/2-1/2 — Kirchheim
1955 — Pachman, Ludek vs Szabo, Ladislav — 1/2-1/2 — Buenos Aires ARG
1955 — Byrne, David vs Geller, Efim P. — 0-1 — Moscow RUS
1959 — Ivkov, Borislav vs Pachman, Ludek — 1/2-1/2 — Mar del Plata ARG
7…dxc4 — 28.3% (594 parties)
1922 — Koenig, Imre vs Gruenfeld, Ernst — 0-1 — Vienna AUT
1923 — Rubinstein, Akiba vs Gruenfeld, Ernst — 1/2-1/2 — Maehrisch Ostrau
1939 — Konstantinopolsky, Alexander vs Reshevsky, Samuel — 1-0 — Leningrad RUS
1939 — Menchik, Vera vs Golombek, Harry — 1/2-1/2 — Montevideo URU
1942 — Kottnauer, Cenek vs Sajtar, Jaroslav — 1/2-1/2 — Chocen
7…a5 — 13.7% (287 parties)
1986 — Podgaets, Mikhail vs Okhotnik, Vladimir — 1-0 — UKR-ch Kiev UKR
1987 — Goldin, Alexander vs Kruppa, Yuri — 1-0 — Uzhgorod
1987 — Khasin, Alexander vs Melnikov, A — 1-0 — Kursk
1987 — Fokin, Sergey vs Khasin, Alexander — 1/2-1/2 — URS-FL Kursk
1988 — Kalinitschew, Sergey vs Heinig, Wolfram, Dr. — 1/2-1/2 — Berlin East
7…Nbd7 — 7.5% (158 parties)
1940 — Shainswit, George vs Woliston, Philip — 1-0 — New York, NY USA
1950 — De Souza Mendes, Joao vs Cruz Filho, Oswaldo — 1-0 — Rio de Janeiro BRA
1954 — Raizman, Maurice vs Blau, Max — 1-0 — Amsterdam olm
1963 — Zilber, Israel vs Solmanis, Zigfrids — 0-1 — Riga LAT
1963 — Bukhover, A vs Ivanenko, B — 1-0 — Kiev UKR