E43a - 5.* - St. Petersburg Variation (1926)

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E43a — St. Petersburg Variation (1926)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6
Les coups candidats
Ambassadeurs : Donner, Jan-Hein (30x), Vaisser, Anatoli (30x), Knaak, Rainer (30x), Korchnoi, Viktor (27x), De Firmian, Nick (26x), Cafferty, Bernard (22x), Ward, Chris G (19x), Hoi, Carsten (19x)
Ambassadeurs : Gligoric, Sofija (26x), Georgiev, Vladimir (22x), Zsinka, Laszlo (16x), Muir, Andrew J (16x), Lukacs, Peter (14x), Portisch, Ferenc (12x), Inkiov, Ventzislav (12x), Bisguier, Arthur B (9x)
Ambassadeurs : Csom, Istvan (6x), De Coverly, Roger D (5x), Cafferty, Bernard (4x), Cardili, Mariano (4x), Keres, Paul Petrovich (3x), Minev, Nikolay N (3x), Zhang, Jasmine Haomo (3x), Zavodny, Zdenek (2x)
5.Bd2 — 2.0% (283 parties)
Ambassadeurs : Yu, Jiangwei (7x), Kekki, Petri (5x), Chanda, Sandipan (4x), Grebnev, Aleksey (4x), Kumar, Nikhil (3x), Visakh N R (3x), Kunz, Konstantin (2x), Hurme, Harri (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.Ne2 5.Bd3 5.Nf3 5.Bd2
<1800 540 45% 36% 11% 4%
1800-2200 4733 53% 32% 9% 2%
2200-2600 6944 62% 28% 4% 2%
2600+ 227 63% 26% 4% 3%
Évolution par décennie (% des parties)
Décennie N parties 5.Ne2 5.Bd3 5.Nf3 5.Bd2
1950s 219 62% 28% 5% —
1960s 364 53% 32% 12% 0%
1970s 623 58% 33% 8% 0%
1980s 1044 64% 29% 5% 0%
1990s 1968 53% 36% 6% 0%
2000s 3351 51% 35% 7% 1%
2010s 4879 60% 28% 6% 2%
2020s 1794 60% 23% 5% 9%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.Ne2 60% 60% +0.1%
5.Bd3 28% 23% ▼ -5.6%
5.Nf3 6% 5% ▼ -1.2%
5.Bd2 2% 9% ▲ +7.9%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 10 parties
Ju, Wenjun — 4 parties
Kasparov, Garry — 3 parties
Carlsen, Magnus — 3 parties
Tal, Mikhail — 2 parties
Smyslov, Vladimir — 1 partie
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
5.Ne2 — 57.0% (8113 parties)
1950 — Collins Justin vs Jackson, Oliver A — 1-0 — New Jersey
1950 — Kottnauer, Cenek vs Dimitrov Petar — 1-0 — CSR-BUL Prague CZE
1950 — Bondarevsky, Igor vs Kan, Ilya A — 1-0 — Leningrad RUS
1950 — Siegel, Paul vs Troeger, Paul — 0-1 — FRG-ch Bad Pyrmont GER
1951 — Moiseev, Oleg vs Novotelnov, Nikolai — 1-0 — Moskou ch-URS
5.Bd3 — 30.4% (4335 parties)
1950 — Borisenko, Georgy K vs Alatortsev, Vladimir N. — 0-1 — Moskou ch-URS
1950 — Stenborg, Ake vs Crepeaux, Robert — 1-0 — Dubrovnik CRO
1950 — Belova, Valentina M vs Bykova, Elizaveta — 1/2-1/2 — Moscow RUS
1950 — Staldi, Cherubino vs Giustolisi, Alberto — 1/2-1/2 — Sorrento ch ITA
1951 — Pinkus, Albert vs Santasiere, Anthony — 0-1 — New York ch-USA
5.Nf3 — 6.5% (925 parties)
1951 — Petrosian, Tigran A. vs Kopylov, Nazar — 0-1 — Moskou ch-URS
1952 — Rebizzo, Cayetano vs Rodriguez Camio, A. — 1-0 — Rosario ARG
1952 — Udovcic, Mijo vs Toran Albero, Roman — 1-0 — Zurich SUI
1953 — Doe, Raymond vs Fielding, Gerald — 0-1 — Winnipeg CAN
1953 — Minev, Nikolay N vs Dimitrov, Krastjo — 1-0 — Sofia BUL
5.Bd2 — 2.0% (283 parties)
1966 — Gasztonyi, Endre vs Toth, Bela — 1-0 — ?
1972 — Figueirido, Mario vs Kanko, Ilkka — 0-1 — Skopje ol (Men) fin-C
1978 — Scholz, Guillermo vs Monier, Raul — 1/2-1/2 — Buenos Aires olm
1987 — Hoffmann, Michael vs Winants, Luc — 1/2-1/2 — it Ostende Belgium
1988 — von Saldern, Ruediger vs Martin, Andrew D — 1/2-1/2 — Guernsey GCI