C87c - 7…bxc6 8.d4 - Closed, Averbakh (1902)

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C87c — Closed, Averbakh (1902)
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6 7.Bxc6+ bxc6 8.d4
Les coups candidats
Ambassadeurs : Romanishin, Oleg M (15x), Petrosian, Arshak B (8x), Kholmov, Ratmir D (8x), Sokolov, Ivan (8x), Blagojevic, Dragisa (4x), Harikrishna, Pentala (4x), Shamkovich, Leonid (3x), Tal, Mikhail (3x)
8…Nd7 — 18.6% (88 parties)
Ambassadeurs : Ivkov, Borislav (7x), Keres, Paul Petrovich (5x), Jansa, Vlastimil (3x), Smyslov, Vasily (3x), Timman, Jan H (3x), Abanin, Vladimir (2x), Kostro, Jerzy (2x), Gligoric, Sofija (2x)
8…Bg4 — 3.8% (18 parties)
Ambassadeurs : Runge, Berthold (1x), Ehlert, Jochen (1x), Cuijpers, Frans Andre (1x), Roos, Jean-Luc (1x), Pahta, Pentti (1x), Nilsson, Erik (1x), Kraft, Chip (1x), Swathell, Gary D (1x)
8…Bb7 — 0.2% (1 parties)
Ambassadeurs : Komarica, Borut (1x), Kozarski, Aleksander (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…exd4 8…Nd7 8…Bg4 8…Bb7
<1800 20 75% 10% 15% —
1800-2200 97 75% 13% 9% —
2200-2600 227 83% 16% 0% —
2600+ 33 88% 12% — —
Évolution par décennie (% des parties)
Décennie N parties 8…exd4 8…Nd7 8…Bg4 8…Bb7
1950s 6 33% 50% 17% —
1960s 41 46% 54% — —
1970s 31 55% 45% — —
1980s 31 77% 13% 10% —
1990s 44 80% 16% 5% —
2000s 131 82% 13% 4% 1%
2010s 134 85% 9% 4% —
2020s 55 82% 16% 2% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…exd4 85% 82% ▼ -3.3%
8…Nd7 9% 16% ▲ +7.4%
8…Bg4 4% 2% ▼ -2.7%
8…Bb7 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Anand, Viswanathan — 1 partie
Karpov, Anatoly — 1 partie
Parties historiques
8…exd4 — 77.0% (364 parties)
1956 — Nielsen, Gunnar vs Hulgaard, Herluf — 1-0 — Denmark ch corr
1956 — Gupta R S vs Zhamsaran — 1-0 — ?
1960 — Christiansen, Johannes vs Nergard, Ole-Kristian — 0-1 — ?
1960 — Seth BC vs De Cardenas, Raul — 1/2-1/2 — Leipzig GER
1960 — Yanofsky, Harry vs Szabo, Stefan — 1-0 — Winnipeg CAN
8…Nd7 — 18.6% (88 parties)
1950 — Keres, Paul Petrovich vs Szabo, Laszlo — 1/2-1/2 — Szcawno Zdroj
1952 — Boleslavsky, Isaac vs Keres, Paul Petrovich — 1/2-1/2 — Moscow RUS
1957 — Krogius, Nikolai V vs Abanin, Vladimir — 1/2-1/2 — Leningrad RUS
1960 — Shianovsky, Vladislav I vs Alexander, Ken R D — 1/2-1/2 — Kiev UKR
1961 — Bronstein, David I vs Smyslov, Vasily — 1/2-1/2 — Baku ch-URS
8…Bg4 — 3.8% (18 parties)
1956 — Runge, Berthold vs Ehlert, Jochen — 1-0 — Zittau
1984 — Kraft, Chip vs Swathell, Gary D — 1-0 — Plymouth ch-MI op
1986 — Pahta, Pentti vs Nilsson, Erik — 0-1 — ?
1988 — Cuijpers, Frans Andre vs Roos, Jean-Luc — 1-0 — Baden-Baden op
1994 — Purkey, L. vs Moore, John R — 1-0 — Detroit ch-MI clsB
8…Bb7 — 0.2% (1 parties)
2005 — Komarica, Borut vs Kozarski, Aleksander — 1-0 — ICCF