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D78e — Neo-Gruenfeld
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.Nc3
Les coups candidats
Ambassadeurs : Matnadze Bujiashvili, Ann (6x), Stupak, Kacper (5x), Eckhardt, Claudia (4x), Beydullayeva, Govhar (4x), Groh, Jiri (4x), De Fotis, Gregory (3x), Husek, Zdenek (3x), Bagaturov, Giorgi (3x)
7…Nbd7 — 17.8% (582 parties)
Ambassadeurs : Eckhardt, Claudia (5x), Baumgartner, Heinz (3x), Matnadze Bujiashvili, Ann (3x), Gakhokidze, Tamar (2x), Sykora, Karel (2x), Ager, Josef (2x), Kerdik, Adam (2x), Gromova, Iulia (2x)
7…Ne4 — 13.0% (424 parties)
Ambassadeurs : Eckhardt, Claudia (4x), Piesik, Piotr (4x), Semmler, Guenter (3x), Yandemirov, Valeri (3x), Korley, Kassa (3x), Colle, Edgar (2x), Dunkelblum, Arthur (2x), Goy, Udo (2x)
7…Bf5 — 8.3% (272 parties)
Ambassadeurs : Gadimbayli, Abdulla (3x), Bashirli, Nail (3x), Osorio Ramos, Francisco (2x), Piesik, Piotr (2x), Staldi, Cherubino (1x), Primavera, Giuseppe (1x), Alves, Francisco H B Severino (1x), Mangini, Jose Henrique de Mello (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…dxc4 7…Nbd7 7…Ne4 7…Bf5
<1800 176 32% 23% 4% 9%
1800-2200 1811 36% 21% 12% 9%
2200-2600 648 60% 6% 17% 5%
2600+ 14 86% 7%
Évolution par décennie (% des parties)
Décennie N parties 7…dxc4 7…Nbd7 7…Ne4 7…Bf5
1920s 4 50% 50%
1930s 3 33% 33%
1940s 18 39% 28% 11%
1950s 25 48% 24% 8% 8%
1960s 43 60% 16% 12% 2%
1970s 42 48% 19% 10% 7%
1980s 88 44% 16% 22% 6%
1990s 529 34% 19% 17% 9%
2000s 815 37% 20% 15% 7%
2010s 1328 40% 18% 11% 10%
2020s 370 57% 10% 9% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…dxc4 40% 57% ▲ +17.4%
7…Nbd7 18% 10% ▼ -8.5%
7…Ne4 11% 9% ▼ -1.6%
7…Bf5 10% 8% ▼ -1.8%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 2 parties
Alekhine, Alexander — 1 partie
Euwe, Max — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
7…dxc4 — 40.7% (1329 parties)
1923 — Zimmermann, Otto vs Maier, Adrian — 1/2-1/2 — Bern SUI
1929 — Alekhine, Alexander vs Bogoljubow, Efim — 1-0 — Deutschland/Niederlande
1938 — Vasiliev, Viktor A vs Mazel, Isaak Y — 0-1 — Leningrad RUS
1942 — Lundin, Erik vs Jonsson, Erik — 0-1 — Sverige
1943 — Iliesco, Juan vs Fenoglio, Virgilio — 1-0 — Mar del Plata ARG
7…Nbd7 — 17.8% (582 parties)
1942 — Koltanowski, George vs White, Scott — 1-0 — Denver simul
1942 — Iliesco vs Vuskovic, V. — 1-0 — Buenos Aires ARG
1944 — Pelikan, Jan vs Puiggros, Guillermo — 1-0 — Mar del Plata ARG
1945 — Pirc, Vasja vs Tsvetkov, Alexandar K — 1-0 — Novi Sad SRB
1948 — Bruce, Ronald MacKay vs Kitto, Francis E A — 0-1 — Plymouth
7…Ne4 — 13.0% (424 parties)
1924 — Colle, Edgar vs Matisons, Hermanis — 1/2-1/2 — Paris FRA
1924 — Colle, Edgar vs Euwe, Max — 1-0 — Zutphen m
1939 — Pelikán, Jiří vs Golombek, Harry — 1-0 — Buenos Aires ARG
1944 — Iliesco, Juan vs Puiggros, Guillermo — 1/2-1/2 — Mar del Plata ARG
1949 — Kottnauer, Cenek vs Cortlever, Nico — 1/2-1/2 — CSR-NED Prague CZE
7…Bf5 — 8.3% (272 parties)
1950 — Staldi, Cherubino vs Primavera, Giuseppe — 1/2-1/2 — Sorrento ch ITA
1955 — Bruentrup, Dieter vs Muehlberg, Siegfried — 1/2-1/2 — Zittau GER
1964 — Alves, Francisco H B Severino vs Mangini, Jose Henrique de Mello — 0-1 — Brasilia BRA
1971 — Christiansen, Larry vs Van Leuven, Adriaan — 1-0 — Los Angeles, CA USA
1972 — Werner, Stephan vs Busch, Raimund — 1/2-1/2 — OWL-EM Detmold