E04l - 5…c5 6.O-O Nc6 - Open (1951)

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E04l — Open (1951)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 c5 6.O-O Nc6
Les coups candidats
Ambassadeurs : Sokolov, Andrei (14x), Inkiov, Ventzislav (12x), Stukalov, Mikhail Vasilievich (10x), Ribli, Zoltan (8x), Lu, Shanglei (8x), Gutman, Lev (7x), Unzicker, Ferdinand, Dr. (6x), Vladimirov, Yevgeniy (6x)
7.dxc5 — 26.8% (2133 parties)
Ambassadeurs : Wojtaszek, Radoslaw (11x), Firouzja, Alireza (10x), Gupta, Abhijeet (8x), Postny, Evgeny (6x), Speelman, Jon S (6x), Stefanova, Antoaneta (6x), Allawi Rawlings (5x), Stern, Andrei R (5x)
Ambassadeurs : Sokolov, Andrei (18x), Inkiov, Ventzislav (14x), Kachiani-Gersinska, Ketino (8x), Tukmakov, Vladimir B (7x), Hausner, Ivan (5x), Vukic, Milan (5x), Andersson, Ulf (5x), Smagin, Sergey (5x)
7.Na3 — 2.1% (167 parties)
Ambassadeurs : Gutman, Lev (3x), Lu, Shanglei (3x), Sulava, Nenad (2x), Blodig, Reinhard (2x), Ersahin, Bulent (2x), Gelfand, Boris (2x), Opocensky, Karel (1x), Fuchs, Reinhart (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Qa4 7.dxc5 7.Ne5 7.Na3
<1800 302 49% 26% 22% 0%
1800-2200 2775 51% 23% 23% 2%
2200-2600 3844 42% 30% 26% 2%
2600+ 377 31% 45% 20% 4%
Évolution par décennie (% des parties)
Décennie N parties 7.Qa4 7.dxc5 7.Ne5 7.Na3
1950s 77 58% 8% 30% 1%
1960s 67 60% 9% 31% —
1970s 116 70% 3% 27% —
1980s 494 60% 5% 34% 1%
1990s 782 50% 10% 38% 2%
2000s 1517 48% 13% 37% 2%
2010s 2819 49% 30% 18% 2%
2020s 2084 33% 47% 17% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Qa4 49% 33% ▼ -15.4%
7.dxc5 30% 47% ▲ +16.6%
7.Ne5 18% 17% ▼ -1.2%
7.Na3 2% 2% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 10 parties
Ju, Wenjun — 10 parties
Kasparov, Garry — 6 parties
Ding, Liren — 5 parties
Carlsen, Magnus — 4 parties
Tal, Mikhail — 3 parties
Karpov, Anatoly — 3 parties
Kramnik, Vladimir — 3 parties
Gukesh D — 3 parties
Hou, Yifan — 2 parties
Botvinnik, Mikhail — 1 partie
Parties historiques
7.Qa4 — 45.7% (3637 parties)
1950 — Aditya Balu Jadhav vs Saemisch, Friedrich — 1-0 — Travemuende
1950 — Spiller, Arthur R vs Quillen, Paul — 0-1 — Los Angeles, CA USA
1950 — Bobekov, Radko vs Bobotsov, Milko G — 1-0 — Sofia BUL
1950 — Golombek, Harry vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Hastings ENG
1950 — Primavera, Roberto vs Letelier, Rene — 0-1 — Venice ITA
7.dxc5 — 26.8% (2133 parties)
1951 — Bahro, Tom vs Puc, Stojan — 1/2-1/2 — Sarajevo BIH
1953 — Vidmar, Milan Jr vs Golombek, Harry — 1/2-1/2 — Opatija IT
1954 — Doerner, Charles vs Morcken, Otto B — 1/2-1/2 — Amsterdam NED
1956 — O'Keefe, Jack vs Bisguier, Arthur B — 0-1 — Oklahoma City, OK USA
1956 — Lehmann, Heinz vs Golombek, Harry — 1/2-1/2 — Ostend
7.Ne5 — 24.8% (1973 parties)
1950 — Gereben, Erno vs Honfi, Karoly — 1-0 — ?
1950 — Sandor, Bela vs Balogh, Janos — 1/2-1/2 — Budapest HUN
1950 — Anay Barche vs Szily, Jozsef — 1-0 — Budapest HUN
1950 — Ravinsky, Grigory vs Zagoriansky, Evgeny — 1/2-1/2 — Moscow RUS
1951 — Hajtun, Jozsef vs Gecsei, Istvan — 1-0 — Hungary ch
7.Na3 — 2.1% (167 parties)
1957 — Opocensky, Karel vs Fuchs, Reinhart — 1/2-1/2 — Bratislava Bratislava SVK
1982 — Sulava, Nenad vs Arlandi, Ennio — 1/2-1/2 — Copenhagen DEN
1984 — Mason, Donald J vs Alexander J — 1-0 — Plymouth ch-MI op
1987 — Velasco Garcia, Jorge Juan vs Cuenya de la Iglesia, Carlos — 1-0 — Valladolid
1987 — Basin, Leonid vs Smirnov, Valerij — 1/2-1/2 — ?