A13b —
1.c4 e6 2.g3
Eval: [+0.23]
Les coups candidats
Ambassadeurs : Suba, Mihai (36x), Vaulin, Alexander P. (33x), Foisor, Cristina-Adela (33x), Korchnoi, Viktor (30x), Fridman, Daniel (30x), Schlosser, Philipp (29x), Chernin, Alexander (25x), Sveshnikov, Evgeny (25x)
Ambassadeurs : Rozentalis, Eduardas (25x), Hausner, Ivan (16x), Malakhatko, Vadim (12x), Meijers, Viesturs (11x), Smyslov, Vladimir (10x), Weyerstrass, Ronald (10x), Gagare, Shardul (10x), Vaulin, Alexander P. (9x)
2…f5 — 5.5% (987 parties)
Ambassadeurs : Woodhouse, Stephen V (8x), Owens, Johnny (7x), Guimard, Carlos E (5x), Reim, Gerd (5x), Suba, Mihai (5x), Andrus, Gary E. (5x), Clari Mascarell, Jose Javier (4x), Gaujens, Artis (4x)
2…c5 — 1.9% (347 parties)
Ambassadeurs : Guillemette, Hugo (5x), Vitolinsh, Alvis (4x), Tolonen, Leo (4x), Weyerstrass, Ronald (3x), Wintzer, Joachim, Dr. (3x), Zueger, Beat (3x), Schlawin, Marlon (3x), Meins, Gerlef (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…d5 2…Nf6 2…f5 2…c5
<1800 618 57% 25% 8% 3%
1800-2200 6307 67% 21% 7% 2%
2200-2600 8385 76% 19% 3% 2%
2600+ 475 88% 11% 1%
Évolution par décennie (% des parties)
Décennie N parties 2…d5 2…Nf6 2…f5 2…c5
1850s 1 100%
1870s 1 100%
1890s 2 100%
1900s 10 80% 10% 10%
1910s 10 80% 10%
1920s 26 69% 15% 4% 8%
1930s 27 67% 19% 7% 7%
1940s 40 78% 8% 15%
1950s 137 59% 20% 17% 4%
1960s 238 61% 25% 10% 3%
1970s 316 59% 28% 6% 5%
1980s 691 62% 28% 5% 4%
1990s 2168 70% 20% 6% 2%
2000s 3900 69% 21% 6% 2%
2010s 7423 69% 21% 6% 2%
2020s 3027 79% 16% 2% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…d5 69% 79% ▲ +10.0%
2…Nf6 21% 16% ▼ -4.9%
2…f5 6% 2% ▼ -3.4%
2…c5 2% 1% -0.5%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 10 parties
Smyslov, Vladimir — 10 parties
Kramnik, Vladimir — 10 parties
Hou, Yifan — 10 parties
Kasparov, Garry — 8 parties
Carlsen, Magnus — 7 parties
Gukesh D — 7 parties
Tal, Mikhail — 5 parties
Ding, Liren — 5 parties
Karpov, Anatoly — 3 parties
Ju, Wenjun — 3 parties
Alekhine, Alexander — 2 parties
Anand, Viswanathan — 2 parties
Steinitz, Wilhelm — 1 partie
Euwe, Max — 1 partie
Karpov, Aleksandr — 1 partie
Parties historiques
2…d5 — 70.3% (12668 parties)
1851 — Wyvill, Marmaduke vs Arkebe Kemal Kennedy — 0-1 — London ENG
1898 — Blackburne, Joseph vs Showalter, Jackson — 1/2-1/2 — Vienna AUT
1898 — Blackburne, Joseph vs D Marco, Gianni — 0-1 — Vienna AUT
1900 — Blackburne, Joseph vs Passmore, S. — 1-0 — London ENG
1900 — Blackburne, Joseph vs Alvarez Lee, Felix — 1/2-1/2 — London ENG
2…Nf6 — 20.4% (3681 parties)
1872 — Wisker, John vs Steinitz, Wilhelm — 0-1 — London ENG
1907 — Blackburne, Joseph vs Cohn, Erich — 1-0 — Ostende II
1923 — Alekhine, Alexander vs Beique, — 1/2-1/2 — Simul Montreal (QUE)
1925 — Urbach, Isaak vs Orbach Wilhelm — 0-1 — Breslau GER
1925 — Euwe, Max vs Otto Brech — 1-0 — Nijmegen NED
2…f5 — 5.5% (987 parties)
1913 — Speijer, Abraham vs Van Foreest, Arnold — 1-0 — Scheveningen NED
1922 — Carls, Carl vs Kruger, Paul — 1/2-1/2 — Bad Oeynhausen GER
1938 — Alatortsev, Vladimir N. vs Ragozin, Viacheslav — 0-1 — Moscow RUS
1938 — Alatortsev, Vladimir N. vs Ragozin, Viacheslav — 0-1 — Moscow RUS
1944 — Makogonov, Vladimir vs Kofman, Rafael Moiseevich — 0-1 — Kiev UKR
2…c5 — 1.9% (347 parties)
1908 — Blackburne, Joseph vs Mackenzie, Arthur J — 1/2-1/2 — Tunbridge Wells
1923 — Tartakower, Savielly vs Rubinstein, Akiba — 1/2-1/2 — Carlsbad CZE
1924 — Watson, Charles vs Gundersen Gunnar — 1-0 — Brisbane AUS
1933 — Speijer, Abraham vs Van Foreest, Dirk — 1-0 — NED
1933 — Fine, Richard Alvaro Adrien vs Lundin, Erik — 0-1 — Folkestone ENG