E18i —
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 d5 8.Ne5 Nbd7
Les coups candidats
9.Qa4 — 43.6% (782 parties)
Ambassadeurs : Simonian, Hrair (4x), Skembris, Spyridon (3x), Wicklund-Hansen, Gunnar (3x), Hlinka, Michal (3x), Van Scheltinga, Theo (2x), Gonzalez Zamora, Juan Carlos (2x), Vasovski, Nikola (2x), Gardim, Leonardo D Almada (2x)
9.cxd5 — 18.4% (330 parties)
Ambassadeurs : Auger, Bertrand (3x), Santos, Antonio P (2x), Mueller, Constantin (2x), Skjoldager, Per (2x), Sergeant, Philip Walsingham (1x), Price, Hubert E (1x), Pasero, Pedro (1x), Lalich, Voyin (1x)
9.Bf4 — 17.1% (307 parties)
Ambassadeurs : Bernasek, Jan (2x), Davidson, Jacques (1x), Van Hartingsvelt, Hendrik (1x), Stahlberg, Gideon (1x), Skalicka, Karel (1x), Schmidt, Gerhard (1x), Boehlig, Heinz, Dr. (1x), Turner, Abe J (1x)
9.Nxd7 — 4.7% (85 parties)
Ambassadeurs : Duverne, Jean-Marie (2x), Couspeyre, Thierry (2x), Bruce, Rowena M (1x), Welch, Charles (1x), Both, Gergely (1x), Pavlatos, Kostantinos (1x), Echternach, S. (1x), Varad Ashok Ban (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9.Qa4 9.cxd5 9.Bf4 9.Nxd7
<1800 85 41% 13% 19% 7%
1800-2200 943 41% 18% 18% 5%
2200-2600 449 58% 16% 17% 2%
2600+ 2 100%
Évolution par décennie (% des parties)
Décennie N parties 9.Qa4 9.cxd5 9.Bf4 9.Nxd7
1870s 1 100%
1920s 7 29% 43% 14%
1930s 3 67% 33%
1940s 6 50% 17% 17%
1950s 12 17% 42% 8% 8%
1960s 13 54% 23% 8%
1970s 37 43% 41% 3%
1980s 70 54% 27% 4% 4%
1990s 218 37% 23% 17% 3%
2000s 504 40% 17% 16% 6%
2010s 761 46% 16% 19% 5%
2020s 161 49% 16% 23% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.Qa4 46% 49% ▲ +3.1%
9.cxd5 16% 16% +0.4%
9.Bf4 19% 23% ▲ +4.1%
9.Nxd7 5% 2% ▼ -2.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Parties historiques
9.Qa4 — 43.6% (782 parties)
1871 — Heinicke, Herbert vs Seitz, Alexander — 1-0 — GER
1921 — Kostic, Barbara vs Davidson Gallego, Jorge — 1-0 — The Hague NED
1926 — Takacs, Sandor vs Nagy, Geza — 1-0 — Budapest HUN
1937 — De Groot, Adriaan vs Zita, Frantisek — 1/2-1/2 — Stockholm SWE
1938 — Zagoriansky, Evgeny vs Vasiliev, Viktor A — 1/2-1/2 — Leningrad RUS
9.cxd5 — 18.4% (330 parties)
1923 — Bogoljubow, Efim vs Nimzowitsch, Aron — 1-0 — Carlsbad CZE
1923 — Pokorny, Alois vs Vukovic, Vladimir — 1-0 — Brno-Vienna
1928 — Sergeant, Philip Walsingham vs Price, Hubert E — 0-1 — Hastings ENG
1938 — Pasero, Pedro vs Lalich, Voyin — 1/2-1/2 — Argentina
1952 — Spanjaard, Eduard vs Van Donk, Henk — 1-0 — Veenendaal
9.Bf4 — 17.1% (307 parties)
1927 — Davidson, Jacques vs Van Hartingsvelt, Hendrik — 1-0 — Amsterdam NED
1945 — Stahlberg, Gideon vs Skalicka, Karel — 1-0 — Quilmes
1957 — Turner, Abe J vs Seidman, Herbert — 0-1 — New York, NY USA
1963 — Schmidt, Gerhard vs Boehlig, Heinz, Dr. — 1/2-1/2 — Leipzig GER
1977 — Sahovic, Dragutin vs Gaprindashvili, Nona — 1/2-1/2 — Lone Pine, CA USA
9.Nxd7 — 4.7% (85 parties)
1946 — Bruce, Rowena M vs Welch, Charles — 1/2-1/2 — Nottingham ENG
1956 — Both, Gergely vs Pavlatos, Kostantinos — 1/2-1/2 — Moscow RUS
1982 — Rietveld, Johan vs Oving, Willem — 1/2-1/2 — Alkmaar open
1985 — Janus, Elfi vs Stoffers, Elsbeth — 1/2-1/2 — Dueren
1989 — Echternach, S. vs Varad Ashok Ban — 0-1 — GER