E18i - 8…Nbd7 - Queen’s Indian (1923)

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E18i — Queen’s Indian (1923)
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 — 43.5% (794 parties)
Ambassadeurs : Skembris, Spyridon (5x), Simonian, Hrair (4x), Seeck, Klaus (3x), Bosch van Rosenthal, Edzard (2x), Norman, Kenneth I (2x), Augoustis Funti, Alexis (2x), Lumsdon, Andrew (2x), Gyurkovics, Bence Dr. (2x)
9.cxd5 — 18.3% (334 parties)
Ambassadeurs : Stigar, Petter (2x), Jiretorn, Eva (2x), Mueller, Constantin (2x), Gawlikowski, Stanislaw (1x), Nowacki, Marian (1x), Bergraser, Volf (1x), Bachtiar, Arovah (1x), Olafsson, Fridrik (1x)
9.Bf4 — 17.2% (314 parties)
Ambassadeurs : Schmidt, Gerhard (1x), Boehlig, Heinz, Dr. (1x), Turner, Abe J (1x), Seidman, Herbert (1x), Morin, Yves (1x), Dubreuil, Jean (1x), Sahovic, Dragutin (1x), Gaprindashvili, Nona (1x)
9.Nxd7 — 4.8% (88 parties)
Ambassadeurs : Duverne, Jean-Marie (2x), Couspeyre, Thierry (2x), Both, Gergely (1x), Pavlatos, Kostantinos (1x), Echternach, S. (1x), Varad Ashok Ban (1x), Janus, Elfi (1x), Stoffers, Elsbeth (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 158 37% 13% 17% 10%
1800-2200 1042 41% 18% 18% 5%
2200-2600 424 57% 18% 17% 1%
2600+ 1 — 100% — —
Évolution par décennie (% des parties)
Décennie N parties 9.Qa4 9.cxd5 9.Bf4 9.Nxd7
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 769 46% 16% 19% 5%
2020s 201 48% 15% 22% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.Qa4 46% 48% ▲ +1.9%
9.cxd5 16% 15% ▼ -0.6%
9.Bf4 19% 22% ▲ +3.5%
9.Nxd7 5% 3% ▼ -1.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Parties historiques
9.Qa4 — 43.5% (794 parties)
1956 — Pogrebissky, Iosif vs Matskevich, Avshalom — 0-1 — Kiev UKR
1957 — Troeger, Rainer vs Geissert, Eberhard — 1/2-1/2 — Zittau
1960 — Minev, Nikolay N vs Dimitrov, Ilija — 1-0 — BUL-ch14 Sofia BUL
1963 — Zdanovs, Igors vs Kuzmicovs, Genadijs — 1-0 — Riga LAT
1963 — Coosemans, Billy vs Cornelis, Frans B — 1/2-1/2 — Belgium
9.cxd5 — 18.3% (334 parties)
1952 — Spanjaard, Eduard vs Van Donk, Henk — 1-0 — Veenendaal
1952 — Gonzalez, Juan Carlos vs Ortega, Rogelio — 1-0 — Havana CUB
1954 — Cherepkov, Alexander V vs Klovans, Janis — 1/2-1/2 — Riga LAT
1956 — Olafsson, Fridrik vs Szabo, Iuliu inactive — 1-0 — Uppsala
1958 — Korchnoi, Viktor vs G.k.p., Rubel — 1-0 — Tashkent UZB
9.Bf4 — 17.2% (314 parties)
1957 — Turner, Abe J vs Seidman, Herbert — 0-1 — New York ch-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 open
1980 — Lundin, Erik vs Hauge, Tor Arne — 0-1 — Gausdal NOR
1985 — McLaren, Leonard J vs Cornford, Lindsay H — 0-1 — NZL
9.Nxd7 — 4.8% (88 parties)
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
1992 — Sorlie, S. vs Ulsbol, T. — 0-1 — NOR