B65c - 10…Qa5 - Richter-Rauzer (1940)

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B65c — Richter-Rauzer (1940)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4 Nxd4 10.Qxd4 Qa5
Les coups candidats
Ambassadeurs : Kotronias, Vasilios (32x), Kramnik, Vladimir (14x), Yudasin, Leonid (14x), Leko, Peter (13x), Andrason, Karl Oddur (12x), Inkiov, Ventzislav (12x), Muir, Andrew J (12x), Balogh, Csaba (11x)
Ambassadeurs : Hildebrand, Gerald (9x), Shirov, Alexei (7x), Andrason, Karl Oddur (7x), Balogh, Csaba (7x), Anand, Viswanathan (6x), Bologan, Victor (6x), Nataf, Igor-Alexandre (6x), Wells, Peter J (6x)
11.e5 — 14.6% (466 parties)
Ambassadeurs : Hildebrand, Gerald (16x), Bregadze, Levan (6x), Dutreeuw, Marc (5x), Wells, Peter J (4x), Miroshnichenko, Evgenij (4x), Ulko, Jaroslav (4x), Inkiov, Ventzislav (4x), Matulovic, Milan (3x)
11.Be2 — 4.0% (129 parties)
Ambassadeurs : Muir, Andrew J (3x), Vink, Nico (2x), Blokhuis, Jeroen (2x), Aranovitch, Emiliano (2x), Risting, Eivind Olav (2x), Sanz Losada, Victoriano (2x), Compagnone, Gaetano (2x), Bobel, Philippe (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11.Bc4 11.Kb1 11.e5 11.Be2
<1800 92 57% 14% 15% 8%
1800-2200 883 48% 22% 17% 5%
2200-2600 1654 56% 20% 13% 4%
2600+ 103 67% 14% 14% —
Évolution par décennie (% des parties)
Décennie N parties 11.Bc4 11.Kb1 11.e5 11.Be2
1950s 67 28% 21% 30% 4%
1960s 46 59% 4% 30% 2%
1970s 45 82% 4% 11% —
1980s 167 74% 11% 5% 4%
1990s 744 68% 17% 6% 3%
2000s 1129 59% 21% 13% 2%
2010s 831 39% 20% 24% 7%
2020s 164 34% 29% 21% 7%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11.Bc4 39% 34% ▼ -5.9%
11.Kb1 20% 29% ▲ +9.4%
11.e5 24% 21% ▼ -3.1%
11.Be2 7% 7% -0.0%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Tal, Mikhail — 4 parties
Carlsen, Magnus — 4 parties
Karpov, Anatoly — 2 parties
Hou, Yifan — 1 partie
Parties historiques
11.Bc4 — 55.1% (1758 parties)
1952 — Gligoric, Sofija vs Taimanov, Mark — 1/2-1/2 — Stockholm izt
1952 — Koch, Berthold vs Mueller, Klaus — 1-0 — Cottbus
1952 — Pachman, Ludek vs Anay Barche — 1-0 — Saltsjobaden SWE
1953 — Bruechner, Siegfried vs Schlieder, Rolf — 1/2-1/2 — Jena GER
1953 — Koch, Berthold vs Budrich, Edmund — 1/2-1/2 — Jena ch DDR
11.Kb1 — 19.0% (607 parties)
1950 — Castaldi, Vincenzo vs Barden, Leonard — 1-0 — Hastings ENG
1950 — Castaldi, Vincenzo vs Barden, Leonard — 1-0 — Hastings ENG
1951 — Pytlakowski, Andrzej vs Anay Barche — 0-1 — Marianske Lazne zt
1952 — Byvshev, Vasily vs Taimanov, Mark — 0-1 — Moskou ch-URS
1952 — Byvshev, Vasily vs Suetin, Alexey S — 0-1 — Moskou ch-URS
11.e5 — 14.6% (466 parties)
1953 — Keller, Dieter vs Boey, Josef — 0-1 — Copenhagen DEN
1953 — Aronin, Lev vs Suetin, Alexey S — 1-0 — Minsk BLR
1953 — Tal, Mikhail vs Ilivitsky, Georgy A — 1-0 — Leningrad RUS
1954 — Kramer, Haije vs Kottnauer, Cenek — 1-0 — Beverwijk NED
1954 — Zvorykina, Kira Alekseyevna vs Mothersill, Anne — 1-0 — London, Caxton Hall
11.Be2 — 4.0% (129 parties)
1951 — Byvshev, Vasily vs Lyskov, Ivan N — 0-1 — ?
1952 — Pietruske, Siegfried vs Pietzsch, Wolfgang — 0-1 — Zittau
1953 — Farre, Miguel vs Heikkila, Heikki — 1-0 — Copenhagen DEN
1963 — Gaprindashvili, Nona vs Lazarevic, Milunka — 0-1 — Rijeka
1982 — Belkhodja, Slim vs Abdelnabbi, Imed — 0-1 — Lucerne SUI