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B23j — Closed Korchnoi Variation
1.e4 c5 2.Nc3 e6 3.g3 d5
Eval: [-0.14]
Les coups candidats
4.exd5 — 56.7% (2635 parties)
Ambassadeurs : Dudek, Richard (11x), Rogulj, Branko (10x), Costa, Fernando J.M. (8x), Pacey, Kevin (8x), Dormann, Lars (7x), Kulesza, Mateusz (7x), Eilers, Jochen (7x), Blatny, Frantisek (6x)
4.Bg2 — 21.2% (984 parties)
Ambassadeurs : Bartsch, Berthold (15x), Bastian, Herbert (12x), Welz, Peter, Dr. (7x), Van Voorthuijsen, Peewee (6x), Raupp, Thomas (5x), Bastian, Martin (5x), Barnes, Craig (4x), Marjanovic, Slavoljub (4x)
4.d3 — 20.9% (971 parties)
Ambassadeurs : Starostits, Ilmars (8x), Liljedahl, Lennart (6x), Casper, Thomas (6x), Abramovic, Bosko (6x), Sabirova, Olga (5x), Gaertner, Guntram (5x), Whitehead, Mark A (5x), Kulhanek, Tomas (5x)
4.e5 — 0.9% (40 parties)
Ambassadeurs : Tarachowicz, Alina (2x), Bellemare, Regis (2x), Mottais, Francois (2x), Swol, G. van (1x), Boll, Peter (1x), Gkotski, A. (1x), Gulati, Ashish (1x), Ho, Andrew (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.exd5 4.Bg2 4.d3 4.e5
<1800 135 54% 18% 25% 3%
1800-2200 1966 59% 19% 20% 1%
2200-2600 1528 54% 22% 23% 0%
2600+ 17 47% 29% 24%
Évolution par décennie (% des parties)
Décennie N parties 4.exd5 4.Bg2 4.d3 4.e5
1870s 1 100%
1880s 1 100%
1890s 2 100%
1900s 9 44% 22% 33%
1910s 1 100%
1920s 1 100%
1930s 1 100%
1940s 5 80% 20%
1950s 4 50% 25% 25%
1960s 32 53% 28% 19%
1970s 131 47% 24% 28% 1%
1980s 294 48% 31% 21%
1990s 1071 59% 21% 18% 1%
2000s 1661 59% 18% 22% 1%
2010s 1170 56% 22% 21% 1%
2020s 261 53% 28% 18% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.exd5 56% 53% ▼ -2.3%
4.Bg2 22% 28% ▲ +5.6%
4.d3 21% 18% ▼ -2.8%
4.e5 1% 0% -0.5%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 8 parties
Smyslov, Vladimir — 2 parties
Kasparov, Garry — 2 parties
Kramnik, Vladimir — 1 partie
Parties historiques
4.exd5 — 56.7% (2635 parties)
1879 — Riemann, Fritz vs Paulsen, Louis — 0-1 — Leipzig GER
1897 — Walbrodt vs Janowski, Arkadiusz — 0-1 — Berlin GER
1899 — Cohn, Wilhelm vs Janowski, Dawid — 0-1 — London ENG
1904 — Teichmann, Richard vs Mieses, Jacques — 0-1 — Cambridge
1905 — Leonhardt, Paul vs Mieses, Jacques — 1-0 — London ENG
4.Bg2 — 21.2% (984 parties)
1904 — Lawrence, Thomas F vs Schlechter, Carl — 0-1 — Cambridge Springs
1907 — Chigorin, Mikhail vs Marshall Viele, Fabrizio Aaron — 1/2-1/2 — Ostende
1956 — Hacsak, Istvan vs Szekely, Janos Ferenc — 1-0 — Debrecen HUN
1960 — Janosevic, Dragoljub vs Kozomara, Vlado — 1-0 — Ljubljana
1966 — Fernandez, Ruben vs Tapia Hugo — 1-0 — Buenos Aires ARG
4.d3 — 20.9% (971 parties)
1881 — Schallopp, Emil vs Paulsen, Wilfried — 1-0 — Berlin GER
1904 — Mason, James vs Van Vliet, Louis — 0-1 — London ENG
1906 — Salwe, Georg vs Marshall, Frank — 1-0 — Ostend
1908 — Salwe, George vs Mieses, Julio Cesar — 1/2-1/2 — Duesseldorf GER
1948 — Bakonyi, Elek vs Trifunovic, Petar — 0-1 — Budapest HUN
4.e5 — 0.9% (40 parties)
1978 — Swol, G. van vs Boll, Peter — 0-1 — NLD-BV/78-24
1991 — Tarachowicz, Alina vs Wagenschuetz, Evelyn — 1-0 — Mamaia
1992 — Tarachowicz, Alina vs Gkotski, A. — 1-0 — Rimavska Sobota SVK
1992 — Kusec, Stjepan vs Medak, Jasnica — 1-0 — Pula CRO
1996 — Gulati, Ashish vs Ho, Andrew — 0-1 — Edmonton ch-CAN jr