A21a — King’s
1.c4 e5 2.Nc3
Eval: [+0.12]
Les coups candidats
Ambassadeurs : Zielinski, Sergej (227x), Morley, Paul (156x), Miezis, Normunds (147x), Vetter, Udo (131x), Uhlmann, Wolfgang (107x), Fedukin, Alexandre (101x), ? (99x), Szerlak, Andrzej (89x)
Ambassadeurs : Vetter, Udo (78x), Miezis, Normunds (77x), Pribyl, Josef (64x), Hort, Vlastimil (61x), Uhlmann, Wolfgang (60x), Moody, David W (47x), ? (47x), Cvetkovic, Srdjan (43x)
Ambassadeurs : Miezis, Normunds (76x), Hector, Jonny (32x), Volkov, Sergey (29x), Glek, Igor (28x), ? (27x), Vatter, Hans-Joachim (25x), Uhlmann, Wolfgang (23x), Mainka, Romuald (22x)
Ambassadeurs : Uhlmann, Wolfgang (39x), Barcza, Gedeon (34x), Pilnik, Herman (24x), McNab, Colin A (23x), Polugaevsky, Lev (21x), Smyslov, Vladimir (20x), Lukin, Andrei M (19x), Ree, Hans (18x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…Nf6 2…Nc6 2…Bb4 2…d6
<1800 5041 58% 23% 5% 5%
1800-2200 40159 53% 28% 6% 6%
2200-2600 39486 53% 26% 11% 8%
2600+ 2059 58% 18% 17% 7%
Évolution par décennie (% des parties)
Décennie N parties 2…Nf6 2…Nc6 2…Bb4 2…d6
1810s 1 100%
1840s 2
1850s 6 50%
1860s 3 100%
1870s 4 25% 50%
1880s 4 25% 25% 25%
1890s 7 71% 14%
1900s 31 71% 19% 3%
1910s 31 81% 10% 3%
1920s 155 55% 31% 5%
1930s 371 53% 39% 2%
1940s 359 62% 32% 2%
1950s 810 49% 24% 0% 20%
1960s 1705 42% 31% 0% 20%
1970s 3903 55% 27% 1% 12%
1980s 6539 49% 30% 6% 10%
1990s 22178 47% 29% 7% 9%
2000s 32759 53% 28% 6% 6%
2010s 38632 58% 25% 7% 5%
2020s 11798 61% 18% 14% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…Nf6 58% 61% ▲ +3.0%
2…Nc6 25% 18% ▼ -7.5%
2…Bb4 7% 14% ▲ +7.1%
2…d6 5% 4% ▼ -0.7%
Joueurs célèbres
Champions du monde dans cette position
Euwe, Max — 10 parties
Smyslov, Vladimir — 10 parties
Alekhine, Alexander — 10 parties
Botvinnik, Mikhail — 10 parties
Tal, Mikhail — 10 parties
Karpov, Aleksandr — 10 parties
Kasparov, Garry — 10 parties
Karpov, Anatoly — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Ju, Wenjun — 10 parties
Ding, Liren — 10 parties
Gukesh D — 10 parties
Lasker, Emanuel — 9 parties
Steinitz, Wilhelm — 5 parties
Hou, Yifan — 2 parties
Fischer, Robert James — 1 partie
Parties historiques
2…Nf6 — 53.8% (64232 parties)
1853 — Sutton, John Dr vs Philipp, W. — 1-0 — cr meestertm
1854 — Brien, Robert vs Janssens, Franciscus G — 1/2-1/2 — London ENG
1858 — Staunton, Howard vs Loewenthal, Johann — 0-1 — Birmingham Birmingham ENG
1866 — Bird, Henry vs Steinitz, Wilhelm — 0-1 — London ENG
1867 — Pokrovsky, Anatoliy vs Ershov, Aleksandr — 1-0 — ?
2…Nc6 — 26.3% (31408 parties)
1889 — Bird, Henry vs Martinez, Dion M — 0-1 — New York, NY USA
1894 — De Weydlich, Kasimir vs Walbrodt, Carl — 0-1 — Leipzig GER
1901 — Blackburne, Joseph vs Marshall, Frank — 1-0 — Monte Carlo MNC
1902 — Mason, James vs Barry, John F — 1/2-1/2 — England
1904 — Swiderski, Radoslaw vs Suechting, Hugo — 0-1 — Coburg
2…Bb4 — 7.1% (8447 parties)
1816 — Isaacson, Gunnar J vs Bishop, Lloyd — 1-0 — Gainesville
1872 — SteinitzPotter vs KolischMeitner — 1-0 — ?
1874 — London, Alexander H vs Wenen — 1-0 — cr.
1889 — Bonterweck vs Aguilar Muller, Manuel Alejandro — 1-0 — cr.
1908 — Isaacson, Gunnar J vs Lyons, Gary — 0-1 — ?
2…d6 — 6.9% (8252 parties)
1914 — Alekhine, Alexander vs ? — 1-0 — St Petersburg RUS
1922 — Alekhine, Alexander vs Balla, Zoltan Tibor — 1/2-1/2 — Bad Pistyan CZE
1923 — Tartakower, Savielly vs Master Walter Aira — 1/2-1/2 — Maehrisch Ostrau
1925 — Levenfish, Grigory vs Selezniev, Alexey — 1-0 — Leningrad ch-URS
1925 — Carls, Carl vs De La Torre Huertas, Carlos — 1-0 — Baden-Baden GER