B67k - 9.f4 b5 - Richter-Rauzer [+0.49]

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B67k — Richter-Rauzer
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 b5
Eval: [+0.49]
Les coups candidats
Ambassadeurs : Wosch, Arkadiusz (194x), Kozul, Zdenko (107x), Damljanovic, Branko (28x), Jankovic, Alojzije (24x), Gupta, Abhijeet (23x), Lupulescu, Constantin (23x), Nevednichy, Vladislav (19x), Yermolinsky, Alex (18x)
Ambassadeurs : Yermolinsky, Alex (13x), Kozul, Zdenko (13x), Ghitescu, Theodor (6x), Radulov, Ivan (5x), Schneider, Lars-Ake (5x), Ostojic, Predrag (5x), Mednis, Edmar J (5x), Grosar, Aljosa (4x)
10.a3 — 5.3% (280 parties)
Ambassadeurs : Wosch, Arkadiusz (14x), Manik, Mikulas (4x), Bernal Varela, Nelson (3x), Roberts, Anthony J (3x), Zurakhov, Vladlen Y (2x), Sperber, Goran (2x), Beliavsky, Alexander G (2x), Iliev Ivanov, Andrey (2x)
10.e5 — 1.6% (85 parties)
Ambassadeurs : Sochorova, Petra (3x), Vitolinsh, Alvis (2x), Wagner-Michel, Annett (2x), Braun, Ingram (2x), Klovans, Janis (2x), Mis, Mieszko (2x), Tapia Hugo (1x), Fernandez Murga, Roberto (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10.Bxf6 10.Nxc6 10.a3 10.e5
<1800 61 77% 8% 2% 5%
1800-2200 1224 72% 12% 7% 2%
2200-2600 3263 78% 12% 4% 1%
2600+ 125 84% 8% 2% 2%
Évolution par décennie (% des parties)
Décennie N parties 10.Bxf6 10.Nxc6 10.a3 10.e5
1950s 33 30% 36% 12% —
1960s 71 51% 21% 13% 1%
1970s 264 53% 28% 6% 1%
1980s 224 71% 18% 4% 2%
1990s 569 63% 20% 6% 3%
2000s 1474 76% 12% 4% 2%
2010s 2108 81% 8% 6% 1%
2020s 501 80% 7% 6% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10.Bxf6 81% 80% ▼ -0.5%
10.Nxc6 8% 7% -0.4%
10.a3 6% 6% +0.5%
10.e5 1% 1% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 5 parties
Kasparov, Garry — 5 parties
Anand, Viswanathan — 5 parties
Hou, Yifan — 5 parties
Ju, Wenjun — 2 parties
Karpov, Aleksandr — 1 partie
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
10.Bxf6 — 74.8% (3925 parties)
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 — Byvshev, Vasily vs Zilber, Israel — 1-0 — Leningrad RUS
1957 — Bonch-Osmolovsky, Mikhail vs Geller, Efim P. — 1-0 — Kiev UKR
10.Nxc6 — 12.1% (636 parties)
1951 — Barden, Leonard vs Ivkov, Borislav — 1/2-1/2 — London, University College
1956 — Polugaevsky, Lev vs Koblencs, Alexander — 1/2-1/2 — URS-ch sf Tbilisi GEO
1956 — Khasin, Abram vs Taimanov, Mark — 0-1 — Leningrad ch-URS
1957 — Kmita, Zbigniew vs Doda, Zbigniew — 1-0 — Warchau ch POL
1957 — Mnatsakanian, Eduard A vs Suetin, Alexey S — 1/2-1/2 — Leningrad RUS
10.a3 — 5.3% (280 parties)
1957 — Kallas, Hans Joachim vs Malich, Burkhard, Dr. — 0-1 — Soemmerda
1957 — Gumprich, Kurt vs Lehmann, Heinz — 0-1 — FRG-ch Bad Neuenahr
1957 — Kholmov, Ratmir D vs Doda, Zbigniew — 1-0 — Szczawno Zdroj
1958 — Szokolov, V. vs Plater, K. — 1-0 — Balatonfured
1962 — Shianovsky, Vladislav I vs Tukmakov, Vladimir B — 0-1 — Kiev UKR
10.e5 — 1.6% (85 parties)
1966 — Tapia Hugo vs Fernandez Murga, Roberto — 0-1 — Buenos Aires ARG
1972 — Eley, Brian vs Radulov, Ivan — 0-1 — Hastings ENG
1978 — Vitolinsh, Alvis vs Schneider, Lars-Ake — 1-0 — Jurmala LAT
1979 — Chudinovskih, Alexander N. vs Panchenko, Alexander N — 0-1 — Sverdlovsk ch RUS
1980 — Povah, Nigel E vs Blackstock, Lesly S F — 1/2-1/2 — London ENG