B67g - 9.f4 [+0.31]

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B67g —
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4
Eval: [+0.31]
Les coups candidats
Ambassadeurs : Wosch, Arkadiusz (209x), Kozul, Zdenko (128x), Damljanovic, Branko (32x), Yermolinsky, Alex (31x), Lupulescu, Constantin (31x), Gupta, Abhijeet (28x), Jankovic, Alojzije (28x), Kotronias, Vasilios (23x)
Ambassadeurs : Schneider, Lars-Ake (27x), Matsukevich, Vladimir Vladimirov (26x), Timman, Jan H (17x), Aigmueller, Max Ing (16x), Lukin, Andrei M (15x), Maki, Veijo (14x), Tischbierek, Raj (13x), Hausner, Ivan (13x)
Ambassadeurs : Banas, Jan (28x), Madl, Ildiko (20x), Van der Wiel, John T.H. (19x), Almarza Mato, Carlos (15x), Nijboer, Friso (14x), Bielczyk, Jacek (13x), Ilyin, Pavel Egorovich (12x), Andreev, Eduard (12x)
9…Qc7 — 1.8% (187 parties)
Ambassadeurs : Rodriguez Cespedes, Amador (9x), Arutinian, David (6x), Lykhin, Mark (4x), Bagaturov, Giorgi (4x), Paoli, Enrico (3x), Lanka, Zigurds (3x), Szabo, Laszlo (2x), Altgelt, Alexander (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…b5 9…Be7 9…h6 9…Qc7
<1800 103 59% 24% 16% —
1800-2200 2266 54% 21% 21% 3%
2200-2600 6319 52% 26% 21% 1%
2600+ 218 57% 29% 14% —
Évolution par décennie (% des parties)
Décennie N parties 9…b5 9…Be7 9…h6 9…Qc7
1940s 27 — 11% 89% —
1950s 252 13% 32% 46% 2%
1960s 251 28% 48% 18% 2%
1970s 600 44% 46% 8% 1%
1980s 581 39% 42% 18% 1%
1990s 1267 45% 24% 25% 4%
2000s 2440 60% 13% 23% 2%
2010s 3515 60% 16% 22% 2%
2020s 1489 34% 53% 12% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…b5 60% 34% ▼ -26.3%
9…Be7 16% 53% ▲ +37.2%
9…h6 22% 12% ▼ -10.1%
9…Qc7 2% 1% ▼ -0.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Anand, Viswanathan — 9 parties
Kasparov, Garry — 7 parties
Hou, Yifan — 5 parties
Ju, Wenjun — 4 parties
Karpov, Aleksandr — 3 parties
Carlsen, Magnus — 3 parties
Botvinnik, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie
Parties historiques
9…b5 — 50.3% (5244 parties)
1951 — Barden, Leonard vs Ivkov, Borislav — 1/2-1/2 — London, University College
1954 — Zurakhov, Vladlen Y vs Byvshev, Vasily — 1/2-1/2 — URS-ch sf Leningrad RUS
1955 — Matanovic, Aleksandar vs Heinicke, Herbert — 1-0 — Hamburg GER
1956 — Sakharov, Yuri G. vs Koblencs, Alexander — 1/2-1/2 — URS-ch sf Tbilisi GEO
1956 — Polugaevsky, Lev vs Koblencs, Alexander — 1/2-1/2 — URS-ch sf Tbilisi GEO
9…Be7 — 26.0% (2711 parties)
1949 — Bronstein, Anna vs Ragozin, Viacheslav — 1-0 — Moskva ch SU
1949 — Bronstein, David I vs Ragozin, Viacheslav — 1-0 — Moskou ch-URS
1949 — Unzicker, Wolfgang vs Mueller, Hans — 1/2-1/2 — Lucerne SUI
1950 — Ravinsky, Grigory vs Koblencs, Alexander — 1/2-1/2 — Leningard
1950 — Kamyshov, Mikhail vs Chekhover, Vitaly — 0-1 — URS-ch sf Tartu
9…h6 — 21.0% (2185 parties)
1940 — Hachaturov, A. vs Tolush, Alexander — 0-1 — USSR
1943 — Konstantinopolsky, Alexander vs Boleslavsky, Isaac — 1/2-1/2 — Sverdlovsk
1943 — Napolitano, Mario vs Barcza, Gedeon — 1/2-1/2 — Corr corr.
1945 — Ivashin, Alex vs Ilivitsky, Georgy A — 1-0 — Gorky
1946 — Szabo, Ladislav vs Lundin, Erik — 0-1 — Groningen NED
9…Qc7 — 1.8% (187 parties)
1951 — Samarian, Sergiu vs Milev, Zdravko — 0-1 — Bucharest ROU
1952 — Byvshev, Vasily vs Kuzminykh, Evgeny — 1-0 — Leningrad RUS
1956 — Barden, Leonard vs Kottnauer, Cenek — 0-1 — London ENG
1959 — Hindle, Owen M vs Ansell, Simon T — 1-0 — Bognor Regis
1959 — Winiwarter, Felix vs Paoli, Enrico — 1-0 — Reggio Emilia ITA