E04k - 5…c5 6.O-O - Open (1948)

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E04k — Open (1948)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 c5 6.O-O
Les coups candidats
Ambassadeurs : Sokolov, Andrei (35x), Lu, Shanglei (21x), Inkiov, Ventzislav (18x), Postny, Evgeny (12x), Stukalov, Mikhail Vasilievich (11x), Razuvaev, Yuri S (10x), Smagin, Sergey (10x), Hausner, Ivan (9x)
6…cxd4 — 2.6% (109 parties)
Ambassadeurs : Van der Wiel, John T.H. (4x), Züger, Armin (4x), Scheeren, Peter (2x), Miles, Anthony J (2x), Palatnik, Semon (2x), Murey, Jacob (2x), Zuyev, Igor (2x), Sindelár, Frantisek (2x)
6…Nbd7 — 1.6% (64 parties)
Ambassadeurs : Browne, Walter Shawn (5x), Korchnoi, Viktor (2x), Alburt, Lev (2x), Opocensky, Karel (1x), Kucera, Jan (1x), Faleg, Alberto (1x), Shocron, Ruben (1x), Barda, Olaf (1x)
6…Be7 — 1.2% (50 parties)
Ambassadeurs : Bates, Richard A (1x), Pert, Richard G (1x), Cochet, Caroline (1x), Kubikova, Alena (1x), Ivanov, Mikhail M. (1x), Campos, Eugenio (1x), Ferrari, Josef (1x), De Andres Gonalons, Fernando (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Nc6 6…cxd4 6…Nbd7 6…Be7
<1800 153 90% 5% 2% 3%
1800-2200 1285 92% 4% 2% 2%
2200-2600 2042 95% 2% 1% 1%
2600+ 303 98% 1% 1% —
Évolution par décennie (% des parties)
Décennie N parties 6…Nc6 6…cxd4 6…Nbd7 6…Be7
1950s 32 75% 12% 9% —
1960s 12 83% 8% — —
1970s 29 93% — 3% —
1980s 313 91% 4% 4% —
1990s 332 88% 3% 4% 3%
2000s 671 90% 5% 2% 2%
2010s 1531 95% 2% 1% 1%
2020s 1195 98% 1% 0% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Nc6 95% 98% ▲ +3.2%
6…cxd4 2% 1% ▼ -1.4%
6…Nbd7 1% 0% ▼ -0.6%
6…Be7 1% 1% ▼ -0.7%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 10 parties
Ju, Wenjun — 10 parties
Kasparov, Garry — 4 parties
Carlsen, Magnus — 4 parties
Karpov, Anatoly — 3 parties
Ding, Liren — 3 parties
Kramnik, Vladimir — 2 parties
Hou, Yifan — 2 parties
Tal, Mikhail — 1 partie
Parties historiques
6…Nc6 — 93.7% (3857 parties)
1950 — Golombek, Harry vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Hastings ENG
1950 — Primavera, Roberto vs Letelier, Rene — 0-1 — Venice ITA
1950 — Ravinsky, Grigory vs Zagoriansky, Evgeny — 1/2-1/2 — Moscow RUS
1951 — Bahro, Tom vs Puc, Stojan — 1/2-1/2 — Sarajevo BIH
1951 — O'Kelly, Albéric de Galway vs Eken, Max — 1/2-1/2 — New York, NY USA
6…cxd4 — 2.6% (109 parties)
1951 — Antal, Sebestyen vs Koch, Berthold — 1/2-1/2 — Sopot
1953 — Kwapisz, Stanislaw vs Gadalinski, Jan — 0-1 — Krakow POL
1954 — Benko, Pal vs Ziembinski, Marian — 1-0 — Budapest tt Budapest HUN
1955 — Nikolaevsky, Yuri V vs Bannik, Anatolij — 1/2-1/2 — Kiev ch
1960 — Volchok, Alexandr vs Lenchiner, Izia — 0-1 — ?
6…Nbd7 — 1.6% (64 parties)
1950 — Barda, Olaf vs Watzal, Dennis — 1-0 — corr Wch1
1952 — Opocensky, Karel vs Kucera, Jan — 1/2-1/2 — Tatranska ch CZE
1953 — Faleg, Alberto vs Shocron, Ruben — 1-0 — Buenos Aires ch-ARG
1974 — Friedman, Shmuel vs Kaldor, Avraham — 1-0 — Israel
1982 — Timoscenko, Gennadij vs Kholmov, Ratmir D — 1-0 — USSR
6…Be7 — 1.2% (50 parties)
1993 — Rahman, Ziaur vs Vaidya, Arun B — 1/2-1/2 — Dhaka Dhaka BAN
1993 — Trefny, Vlastimil vs Hudecek, Jan — 0-1 — Czech Tch
1995 — Ivanov, Mikhail M. vs Campos, Eugenio — 1-0 — ?
1995 — Chetverik, Maxim vs Krejci, Jakub — 1-0 — Frydek-Mistek op-B
1996 — Bates, Richard A vs Pert, Richard G — 1-0 — Nottingham ENG