E03h - 7…a6 - Open (1951)

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E03h — Open (1951)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 c5 7.Nf3 a6
Les coups candidats
Ambassadeurs : Andersson, Ulf (5x), Korchnoi, Viktor (3x), Saduakassova, Dinara (3x), Gromov, Sergey Vasilievich (3x), Fuchs, Reinhart (2x), Schneider, Lars-Ake (2x), Smyslov, Vladimir (2x), Portisch, Lajos (2x)
Ambassadeurs : Rashkovsky, Nukhim N (3x), Socko, Monika (3x), Padevsky, Nikola (2x), Korchnoi, Viktor (2x), Golombek, Harry (1x), Sandor, Bela (1x), Dunkelblum, Arthur (1x), Dimitrov, Ilia (1x)
8.dxc5 — 19.1% (82 parties)
Ambassadeurs : Szekely, Peter (4x), Korchnoi, Viktor (3x), Sokolov, Andrei (3x), Smyslov, Vasily (2x), Huebner, Robert (2x), Cuijpers, Frans Andre (2x), Salov, Valery (2x), Keres, Paul (1x)
8.a4 — 5.6% (24 parties)
Ambassadeurs : Orvad, Uffe (1x), Granberg, Niels (1x), Mochalov, Evgeny V (1x), Inkiov, Ventzislav (1x), Sveshnikov, Evgeny (1x), Kholmov, Ratmir D (1x), Johnsen, Svein Harald (1x), Solberg, Joachim (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.Qc2 8.O-O 8.dxc5 8.a4
<1800 14 29% 36% 21% 7%
1800-2200 120 41% 22% 19% 12%
2200-2600 233 51% 23% 17% 3%
2600+ 15 53% — 13% —
Évolution par décennie (% des parties)
Décennie N parties 8.Qc2 8.O-O 8.dxc5 8.a4
1950s 10 60% 20% 20% —
1960s 9 44% 22% 33% —
1970s 20 40% 35% 25% —
1980s 41 44% 24% 22% 7%
1990s 60 52% 25% 20% 2%
2000s 83 43% 27% 20% 7%
2010s 100 53% 20% 18% 7%
2020s 107 40% 17% 15% 7%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.Qc2 53% 40% ▼ -12.8%
8.O-O 20% 17% ▼ -3.2%
8.dxc5 18% 15% ▼ -3.0%
8.a4 7% 7% -0.5%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 2 parties
Parties historiques
8.Qc2 — 46.3% (199 parties)
1950 — Alatortsev, Vladimir N. vs Flohr, Salo — 1/2-1/2 — Moscow RUS
1950 — Anay Barche vs Kluger, Gyula — 1-0 — Budapest HUN
1954 — Golovko Nikolay Grigorievic vs Madaminov, Mukhiddin — 1-0 — ?
1954 — Golovko, N. vs Mukhitdinov, Akmalkhon — 1-0 — Riga ch-SU tt
1956 — Golz, Werner vs Fuchs, Reinhart — 0-1 — Leipzig ch GDR
8.O-O — 22.3% (96 parties)
1956 — Golombek, Harry vs Padevsky, Nikola — 1/2-1/2 — Moscow RUS
1959 — Dimitrov, Ilia vs Padevsky, Nikola — 0-1 — BUL-ch Sofia BUL
1963 — Sandor, Bela vs Dunkelblum, Arthur — 1/2-1/2 — Beverwijk NED
1963 — De Bruycker, Bernard vs Mollekens, Jozef — 0-1 — Ghent
1972 — Butnorius, Algimantas vs Korchnoi, Viktor — 0-1 — Moscow RUS
8.dxc5 — 19.1% (82 parties)
1951 — Golombek, Harry vs Barden, Leonard — 1/2-1/2 — Hastings ENG
1952 — Smyslov, Vasily vs Evans, Larry — 1-0 — Helsinki olm
1960 — Arriaga, Lopez Joshua Geraldo vs Saborido Carre, Rafael — 0-1 — Lugo
1962 — Keres, Paul vs Korchnoi, Viktor — 1/2-1/2 — Curacao ct
1966 — Damjanovic, Marko vs Jansa, Vlastimil — 1/2-1/2 — Sarajevo Sarajevo BIH
8.a4 — 5.6% (24 parties)
1982 — Mochalov, Evgeny V vs Inkiov, Ventzislav — 0-1 — Minsk BLR
1982 — Sveshnikov, Evgeny vs Kholmov, Ratmir D — 1-0 — Kislovodsk
1987 — Orvad, Uffe vs Granberg, Niels — 0-1 — cr.
1993 — Johnsen, Svein Harald vs Solberg, Joachim — 0-1 — Oslo NOR
2001 — Neila Castillo, Miguel Angel vs Kolev, Atanas — 0-1 — Zaragoza