B84k - 7.O-O Qc7 8.f4 - Scheveningen Classical

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B84k — Scheveningen Classical
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Qc7 8.f4
Eval: [+0.37]
Les coups candidats
Ambassadeurs : Ghinda, Mihail-Viorel (14x), Suba, Mihai (13x), Vogt, Lothar (11x), Ribli, Zoltan (11x), Sax, Gyula (11x), Adamski, Jan (11x), Geller, Efim P. (9x), Ortiz Suarez, Isan Reynaldo (8x)
Ambassadeurs : Kotov Lundqvist, Alex (12x), Boleslavsky, Isaac (5x), Najdorf, Miguel (5x), Vukovic, Sava (5x), Pirc, Vasja (4x), Kotov, Alexander (4x), Janosevic, Dragoljub (3x), Rossolimo, Nicolas (3x)
8…Nbd7 — 12.1% (287 parties)
Ambassadeurs : Donchenko, Anatoly (6x), Tal, Mikhail (4x), Dementiev, Oleg I (4x), Bocharov, Dmitry (4x), Kieninger, Georg (3x), Abergel, Thal (3x), Vaitonis, Povilas (2x), Boleslavsky, Isaac (2x)
8…b5 — 9.3% (221 parties)
Ambassadeurs : Doluhanova, Evgeniya (3x), Donchenko, Anatoly (3x), Dao, Thien Hai (3x), Bolbochan, J. (2x), Ujtelky, Maximilian (2x), Radojcic, Slobodan (2x), German, Eugenio (2x), Lakic, Nikola (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Be7 8…Nc6 8…Nbd7 8…b5
<1800 20 55% 15% 15% 15%
1800-2200 499 51% 14% 17% 15%
2200-2600 1239 69% 14% 10% 6%
2600+ 40 82% 2% 8% 8%
Évolution par décennie (% des parties)
Décennie N parties 8…Be7 8…Nc6 8…Nbd7 8…b5
1920s 3 — 33% — 67%
1930s 22 41% 23% 14% 18%
1940s 63 16% 46% 10% 24%
1950s 89 36% 40% 9% 6%
1960s 89 43% 21% 28% 6%
1970s 191 65% 18% 12% 4%
1980s 246 78% 13% 4% 3%
1990s 470 71% 14% 6% 8%
2000s 608 57% 14% 15% 13%
2010s 528 60% 13% 16% 10%
2020s 55 53% 11% 20% 13%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Be7 60% 53% ▼ -7.1%
8…Nc6 13% 11% ▼ -2.2%
8…Nbd7 16% 20% ▲ +4.5%
8…b5 10% 13% ▲ +2.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 8 parties
Hou, Yifan — 8 parties
Smyslov, Vladimir — 4 parties
Karpov, Anatoly — 3 parties
Anand, Viswanathan — 3 parties
Kasparov, Garry — 2 parties
Karpov, Aleksandr — 1 partie
Parties historiques
8…Be7 — 60.6% (1432 parties)
1931 — Negyesy, Gyorgy vs Maroczy, Geza — 1/2-1/2 — Budapest HUN
1934 — Ilyin Zhenevsky, Alexander vs Ragozin, Viacheslav — 0-1 — Leningrad ch-URS
1935 — Ilyin Zhenevsky, Alexander vs Ragozin, Viacheslav — 0-1 — Leningrad RUS
1936 — Kan, Ilya A vs Ragozin, Viacheslav — 1-0 — Moscow RUS
1937 — Michel, Paul vs Ernst, Wilhelm — 1-0 — Bad Saarow
8…Nc6 — 16.3% (385 parties)
1927 — Leonhardt, Paul vs Hilse, Wilhelm H — 1/2-1/2 — Magdeburg GER
1934 — Joyeux Steiner, Gael vs Pirc, Vasja — 0-1 — Ujpest
1935 — Michel, Paul vs Boeck, Alfred — 1-0 — Saarbruecken
1938 — Furlani, Ljudmil vs Pirc, Vasja — 1/2-1/2 — Ljubljana
1938 — Asztalos, Lajos vs Steiner, Lajos — 1-0 — Ljubljana
8…Nbd7 — 12.1% (287 parties)
1939 — De Groot, Adriaan vs Vaitonis, Povilas — 1-0 — Buenos Aires ARG
1939 — Ernst, Wilhelm vs Bruckhaus, Heinrich — 1-0 — Krefeld GER
1939 — Acebey Michel, Veroska vs Vaitonis, Povilas — 1/2-1/2 — Buenos Aires ARG
1941 — Richter, Kurt P vs Weinitschke, Erich — 1/2-1/2 — Bad Oeynhausen GER
1942 — Boleslavsky, Isaac vs Kan, Ilya A — 1-0 — Moscow RUS
8…b5 — 9.3% (221 parties)
1927 — Michell, Reginald vs Kupchik, Abraham — 1/2-1/2 — New York, NY USA
1928 — Loman, Rudolf vs Van den Bosch, Johannes — 0-1 — The Hague NED
1936 — Fazekas, Stephan vs Frydman, Paulino — 0-1 — Podebrady CZE
1937 — Rogmann, Gustav vs Reinhardt, Enrique — 0-1 — Berlin GER
1938 — Riumin, Nikolai vs Ragozin, Viacheslav — 1-0 — Moscow RUS