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E08a — Closed (1938)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2
Les coups candidats
Ambassadeurs : Sosonko, Gennadi (17x), Bakheet Farag (13x), Smejkal, Jan (11x), Portisch, Lajos (10x), Gobet, Fernand (9x), Maksimovic, Branimir (9x), Ribli, Zoltan (9x), Adamski, Jan (9x)
Ambassadeurs : Medina-Garcia, Antonio (7x), Veingold, Aleksandr (3x), Liebert, Heinz (2x), Cafferty, Bernard (2x), Geller, Efim P. (2x), Ayasofya Medina (2x), Keene, Raymond D (2x), Donchenko, Anatoly (2x)
Ambassadeurs : Pfleger, Helmut, Dr. (2x), Espig, Lutz (2x), Quinteros, Miguel A. (2x), Vedenina, Oksana (2x), Aravindh, Chithambaram VR. (2x), Kolbak, Jens (2x), Li, Chao b (2x), Boey, Josef (1x)
7…Ne4 — 4.2% (207 parties)
Ambassadeurs : Kargoll, Peter (2x), Tukmakov, Vladimir B (2x), Yudovich, Mikhail Jr (1x), Krutyanski, Anatoli A (1x), Reefschlaeger, Helmut, Dr. (1x), Soelter, Reinhold (1x), Sehner, Norbert (1x), Rottstaedt, Werner (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…c6 7…b6 7…c5 7…Ne4
<1800 322 52% 19% 10% 7%
1800-2200 1955 58% 11% 12% 5%
2200-2600 2084 75% 4% 5% 4%
2600+ 56 84% — — —
Évolution par décennie (% des parties)
Décennie N parties 7…c6 7…b6 7…c5 7…Ne4
1950s 31 71% 3% 13% —
1960s 83 71% 12% 6% 2%
1970s 218 82% 8% 6% 1%
1980s 314 81% 4% 5% 3%
1990s 755 70% 9% 8% 4%
2000s 1065 67% 9% 10% 5%
2010s 1782 67% 9% 8% 5%
2020s 733 53% 8% 8% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…c6 67% 53% ▼ -13.8%
7…b6 9% 8% ▼ -1.3%
7…c5 8% 8% -0.2%
7…Ne4 5% 3% ▼ -1.2%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 2 parties
Tal, Mikhail — 2 parties
Anand, Viswanathan — 2 parties
Carlsen, Magnus — 2 parties
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Parties historiques
7…c6 — 66.7% (3323 parties)
1950 — Szabo, Laszlo vs GIDEON SUNDAY — 1/2-1/2 — Budapest HUN
1950 — Flohr, Salo vs Stahlberg, Gideon — 1/2-1/2 — Budapest HUN
1950 — Monostori, Lajos vs Balogh, Janos — 1-0 — Budapest HUN
1950 — Simagin, Vladimir vs Szabo, Laszlo — 0-1 — Szcawno Zdroj
1951 — Bertok, Mario Jr. vs Nedeljkovic, Srecko M — 1/2-1/2 — Sarajevo BIH
7…b6 — 8.5% (424 parties)
1959 — Botvinnik, Mikhail vs Marold, Matthias — 1/2-1/2 — Bremen GER
1960 — Cafferty, Bernard vs Wallis, Philip N — 1/2-1/2 — Coventry ENG
1963 — Faleg, Alberto vs Ortega, Rogelio — 1-0 — Havana CUB
1965 — O'Kelly de Galway, Alberic vs Medina-Garcia, Antonio — 1-0 — Palma de Majorca ESP
1965 — Geller, Efim P. vs Ayasofya Medina — 1-0 — Beverwijk NED
7…c5 — 8.2% (408 parties)
1954 — Anay Barche vs Sliwa, Bogdan — 0-1 — Prague CZE
1954 — Copping, Arthur David William vs Sergeant, Edward — 1-0 — Nottingham ch-BCF
1955 — Esposito, Alfredo vs Reinhardt, Enrique — 1-0 — Buenos Aires ARG
1957 — Boey, Josef vs Mollekens, Jozef — 1-0 — Antwerp BEL
1960 — Espinosa Flores, Rafael Emilio vs Badiola De Miguel, Carlos — 1/2-1/2 — ?
7…Ne4 — 4.2% (207 parties)
1964 — Yudovich, Mikhail Jr vs Krutyanski, Anatoli A — 0-1 — Moscow RUS
1969 — Reefschlaeger, Helmut, Dr. vs Soelter, Reinhold — 0-1 — Solingen GER
1971 — Cobo Arteaga, Eldis vs Kovacs, Laszlo — 1/2-1/2 — ?
1976 — Chekhov, Valery A vs Beliavsky, Alexander G — 0-1 — USSR
1984 — Parameswaran, Tiruchi N. vs Garwell, Jane — 1-0 — Brighton ch-BCF