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B23n — Chameleon Variation
1.e4 c5 2.Nc3 Nc6 3.Nge2
Eval: [+0.10]
Les coups candidats
Ambassadeurs : Westerinen, Heikki M.J. (22x), Huber, Gregory (18x), Popov, Vladimir Valentinovich (17x), Kadric, Denis (17x), Galdunts, Sergey (16x), Soltis, Andrew (15x), Balazec, Ludovit (14x), Vallejo Pons, Francisco (13x)
3…Nf6 — 22.7% (2413 parties)
Ambassadeurs : Nekhaev, Andrey Ivanovich (36x), Popov, Vladimir Valentinovich (18x), Vallejo Pons, Francisco (11x), Tassone, Raffaele (11x), Märten, Thomas (10x), Volodarsky, Yury Aleksandrovich (10x), Ciolac, Gheorghe (9x), Galdunts, Sergey (9x)
3…d6 — 18.2% (1938 parties)
Ambassadeurs : Kontic, Djordjije (20x), Franzoni, Giancarlo (17x), Kadric, Denis (12x), Soltis, Andrew (11x), Galdunts, Sergey (11x), Tischbierek, Raj (11x), Zhelnin, Vladimir V (10x), Westerinen, Heikki M.J. (9x)
3…e6 — 17.0% (1813 parties)
Ambassadeurs : Kontic, Djordjije (18x), Jansa, Vlastimil (11x), Franzoni, Giancarlo (9x), Zhong, Kevin (9x), Hort, Vlastimil (9x), Bodnaruk, Anastasia (9x), Soltis, Andrew (8x), ? (8x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3…g6 3…Nf6 3…d6 3…e6
<1800 167 33% 21% 13% 22%
1800-2200 2870 35% 22% 15% 18%
2200-2600 5857 28% 24% 20% 17%
2600+ 140 25% 32% 11% 15%
Évolution par décennie (% des parties)
Décennie N parties 3…g6 3…Nf6 3…d6 3…e6
1870s 1 100%
1890s 1 100%
1900s 8 62% 25%
1910s 1 100%
1920s 27 15% 33% 15% 26%
1930s 35 51% 17% 14% 11%
1940s 24 54% 17% 29%
1950s 70 37% 30% 20% 7%
1960s 222 29% 14% 29% 18%
1970s 205 29% 16% 22% 23%
1980s 469 23% 16% 26% 25%
1990s 2534 32% 18% 22% 17%
2000s 2627 29% 22% 19% 19%
2010s 3140 32% 26% 14% 16%
2020s 1272 32% 30% 13% 11%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3…g6 32% 32% ▼ -0.6%
3…Nf6 26% 30% ▲ +3.5%
3…d6 14% 13% ▼ -1.3%
3…e6 16% 11% ▼ -5.3%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 7 parties
Anand, Viswanathan — 5 parties
Hou, Yifan — 5 parties
Lasker, Emanuel — 1 partie
Euwe, Max — 1 partie
Smyslov, Vladimir — 1 partie
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie
Ding, Liren — 1 partie
Parties historiques
3…g6 — 30.9% (3287 parties)
1903 — Marchand, Max vs Rubinstein, Akiba — 0-1 — Monte Carlo MNC
1903 — Marchand, Max vs Spielmann, Rudolf — 0-1 — Monte Carlo MNC
1903 — Mieses, Jacques vs Tarrasch, Siegbert — 0-1 — Monte Carlo MNC
1904 — Leonhardt, Paul vs Napier, William — 0-1 — London ENG
1904 — Leonhardt, Paul vs Charles-Odozie Richmond — 0-1 — Hastings ENG
3…Nf6 — 22.7% (2413 parties)
1920 — Mieses, Jacques vs Selezniev, Alexey — 1-0 — Goteborg SWE
1926 — Prokes, Ladislav vs Tartakower, Savielly — 1/2-1/2 — Bardejov
1926 — Mieses, Jacques vs Antze, Oskar — 1-0 — Hannover GER
1926 — Prokes, Ladislav vs Tartakower, Savielly — 1/2-1/2 — Bardejov
1927 — Ilyin Zhenevsky, Alexander vs Makogonov, Vladimir — 0-1 — Moskou ch-URS
3…d6 — 18.2% (1938 parties)
1904 — Leonhardt, Paul vs Hamond, Francis Edward — 1-0 — Hastings ENG
1904 — Leonhardt, Paul vs Mackenzie, Arthur J — 1/2-1/2 — London ENG
1925 — Crepeaux, Robert vs Winter, William — 0-1 — Bromley
1926 — Mieses, Jacques vs Saemisch, Friedrich — 1/2-1/2 — Hannover GER
1927 — Grigoriev, Nikolai vs Ilyin Zhenevsky, Alexander — 1-0 — Moscow RUS
3…e6 — 17.0% (1813 parties)
1873 — Paulsen, Louis vs Heral, Joseph — 1-0 — Vienna AUT
1893 — Lasker, Emanuel vs Celsito — 1-0 — Havana CUB
1915 — Kaufmann, Arthur vs Spielmann, Rudolf — 1-0 — Vienna Vienna AUT
1922 — Kostic, Boris vs Maroczy, Geza — 1-0 — Belgrade SRB
1924 — Duffield, Cyril vs Wright, George A — 1-0 — Southport ENG