B68d - 10.Nf3 b5 - Richter-Rauzer (1948)

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B68d — 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 Be7 10.Nf3 b5
Eval: [+0.38]
Les coups candidats
Ambassadeurs : Matsukevich, Vladimir Vladimirov (24x), Timman, Jan H (16x), Wosch, Arkadiusz (15x), ? (13x), Schneider, Lars-Ake (13x), Maki, Veijo (13x), Aigmueller, Max Ing (12x), Demchenko, Aleksandr (12x)
Ambassadeurs : Schneider, Lars-Ake (6x), Lukin, Andrei M (4x), Mednis, Edmar J (3x), Ostojic, Predrag (3x), Matanovic, Aleksandar (3x), Aigmueller, Max Ing (3x), Schoen, Wolfram (3x), Kazoks, Aivars (3x)
11.Bd3 — 7.9% (188 parties)
Ambassadeurs : Ornstein, Axel (4x), Schneider, Lars-Ake (3x), Bluvshtein, Mark (3x), Zurakhov, Vladlen Y (2x), Arseniev, Vladimir V. (2x), Tolush, Alexander V (2x), Altshuler, Roman Zinovievich (2x), Ljubojevic, Ljubomir (2x)
11.a3 — 2.8% (66 parties)
Ambassadeurs : Gallagher, Joseph G. (3x), Nurman, Alua (3x), Amar, Elham (3x), Tal, Mikhail (2x), Kuhler (2x), Cabrilo, Goran (2x), Pasti, Aron (2x), Savitha Shri B (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11.Bxf6 11.e5 11.Bd3 11.a3
<1800 18 89% 6% — 6%
1800-2200 353 73% 20% 5% 1%
2200-2600 1488 73% 16% 7% 3%
2600+ 80 78% 12% 2% 5%
Évolution par décennie (% des parties)
Décennie N parties 11.Bxf6 11.e5 11.Bd3 11.a3
1940s 2 — — 50% 50%
1950s 63 27% 41% 27% 5%
1960s 103 50% 23% 18% 8%
1970s 215 77% 10% 11% 1%
1980s 214 74% 14% 9% 1%
1990s 237 62% 24% 9% 3%
2000s 279 70% 21% 7% 2%
2010s 539 71% 20% 6% 2%
2020s 723 78% 13% 5% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11.Bxf6 71% 78% ▲ +6.5%
11.e5 20% 13% ▼ -6.2%
11.Bd3 6% 5% ▼ -1.2%
11.a3 2% 4% ▲ +1.4%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 5 parties
Anand, Viswanathan — 3 parties
Ju, Wenjun — 3 parties
Karpov, Aleksandr — 2 parties
Botvinnik, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Hou, Yifan — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
11.Bxf6 — 70.6% (1676 parties)
1954 — Novopashin, Arkady vs Polugaevsky, Lev — 1-0 — Gorki ch22-SU sf
1954 — Nezhmetdinov, Rashid vs Korchnoi, Viktor — 1/2-1/2 — Bucharest ROU
1955 — Stoliar, Efim Samoilovich vs Zurakhov, Vladlen Y — 1/2-1/2 — Leningrad RUS
1955 — Dueckstein, Andreas vs Geller, Efim P. — 1/2-1/2 — Zagreb CRO
1956 — Averbakh, Yuri L vs Ciocaltea, Victor — 1/2-1/2 — Dresden GER
11.e5 — 17.6% (419 parties)
1952 — Arvidsson, Egon vs Goode, Royal — 1-0 — ?
1952 — Boutteville, Cesar vs Barsony — 0-1 — CCOL2 corr
1953 — Beni, Alfred vs Taimanov, Mark — 0-1 — Wenen AUT-URS
1955 — Laurencena, Alberto vs Marini, Luis — 0-1 — Buenos Aires ARG
1956 — Koch, Berthold vs Bouwmeester, Hans — 1/2-1/2 — Moscow RUS
11.Bd3 — 7.9% (188 parties)
1949 — Unzicker, Wolfgang vs Mueller, Hans — 1/2-1/2 — Lucerne SUI
1953 — Olafsson, Fridrik vs Tolush, Alexander V — 0-1 — Hastings ENG
1953 — Matanovic, Aleksandar vs Tolush, Alexander V — 1-0 — Hastings ENG
1954 — Watzl, Leopold vs O'Kelly de Galway, Alberic — 1/2-1/2 — Dyckhoff Memorial A 5456
1955 — Bertok, Mario Jr. vs Vospernik, Zdravko — 1-0 — Novi Sad SRB
11.a3 — 2.8% (66 parties)
1948 — Alexander, Conol Hugh vs Wood, Gabriel — 0-1 — London, Bishopsgate
1955 — Lein, Anatoly vs Tal, Mikhail — 1-0 — Tournament Vilnius (Lithuania
1957 — Mueller von Blumencron, Heiko vs Kuhler — 0-1 — The Hague NED
1957 — MULLER vs Kuhler — 0-1 — The Hague NED
1961 — Lane, Lisa vs Nicolau, Alexandra — 1-0 — Vrnjacka Banja SRB