B67k - 9…b5 - Richter-Rauzer (1957)

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B67k — Richter-Rauzer (1957)
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
Les coups candidats
Ambassadeurs : Wosch, Arkadiusz (196x), Kozul, Zdenko (107x), Damljanovic, Branko (28x), Gupta, Abhijeet (23x), Lupulescu, Constantin (23x), Nevednichy, Vladislav (19x), Yermolinsky, Alex (18x), Petrov, Milen (17x)
Ambassadeurs : Yermolinsky, Alex (13x), Kozul, Zdenko (11x), Radulov, Ivan (5x), Schneider, Lars-Ake (5x), Ghitescu, Theodor (5x), Ostojic, Predrag (5x), Shcherbakov, Ruslan (4x), Kupreichik, Viktor D (4x)
10.a3 — 5.3% (282 parties)
Ambassadeurs : Wosch, Arkadiusz (13x), Manik, Mikulas (4x), Ivanov , Ivan St (3x), Bernal Varela, Nelson (3x), Sokolov, Vladimir (2x), Zurakhov, Vladlen Y (2x), Beliavsky, Alexander G (2x), Omelchenko, Lev (2x)
10.e5 — 1.6% (86 parties)
Ambassadeurs : Sochorova, Petra (3x), Vitolinsh, Alvis (2x), Wagner-Michel, Annett (2x), Kozul, Zdenko (2x), Braun, Ingram (2x), Klovans, Janis (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 169 77% 7% 9% 2%
1800-2200 1591 73% 12% 7% 2%
2200-2600 2982 77% 13% 4% 1%
2600+ 105 87% 7% 1% 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 265 52% 28% 6% 1%
1980s 225 70% 19% 4% 2%
1990s 574 63% 20% 6% 3%
2000s 1481 76% 12% 4% 2%
2010s 2125 81% 8% 6% 1%
2020s 539 78% 9% 6% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10.Bxf6 81% 78% ▼ -2.6%
10.Nxc6 8% 9% ▲ +1.0%
10.a3 6% 6% ▲ +0.7%
10.e5 1% 1% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 5 parties
Anand, Viswanathan — 5 parties
Kasparov, Garry — 5 parties
Hou, Yifan — 5 parties
Karpov, Anatoly — 2 parties
Ju, Wenjun — 2 parties
Carlsen, Magnus — 1 partie
Parties historiques
10.Bxf6 — 74.7% (3969 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 — Byvshev, Vasily vs Zilber, Israel — 1-0 — Leningrad RUS
1956 — Sakharov, Yuri N vs Koblencs, Alexander — 1/2-1/2 — URS-ch sf Tbilisi GEO
1957 — Bonch-Osmolovsky, Mikhail vs Geller, Efim P. — 1-0 — Kiev UKR
10.Nxc6 — 12.2% (649 parties)
1951 — Barden, Leonard vs Ivkov, Borislav — 1/2-1/2 — London, University College
1956 — Khasin, Abram vs Taimanov, Mark — 0-1 — Leningrad ch-URS
1956 — Polugaevsky, Lev vs Koblencs, Alexander — 1/2-1/2 — URS-ch sf Tbilisi GEO
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% (282 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 — Sokolov, Vladimir vs Partyka, Kazimierz — 1-0 — Balatonfured
1962 — Shianovsky, Vladislav I vs Tukmakov, Vladimir B — 0-1 — Kiev UKR
10.e5 — 1.6% (86 parties)
1966 — Tapia, Hugo vs Fernandez Murga, Roberto — 0-1 — Buenos Aires ARG
1973 — Abderrahmane Ely vs Radulov, Ivan — 0-1 — Hastings ENG
1978 — Vitolinsh, Alvis vs Schneider, Lars-Ake — 1-0 — Jurmala LAT
1979 — Chudinovskikh, Alexander M vs Panchenko, Alexander N — 0-1 — Sverdlovsk ch RUS
1980 — Shulman, Vladlen vs Klovans, Janis — 0-1 — ?