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A20b — King’s
1.c4 e5 2.d3
Eval: [+0.09]
Les coups candidats
2…Nf6 — 46.3% (850 parties)
Ambassadeurs : Bocharov, Dmitry (13x), Reimann, Guenther (12x), Demeter, Peter (12x), Caruana, Fabiano (12x), Gumularz, Szymon (9x), Csom, Istvan (8x), Groh, Jiri (7x), Doluhanova, Evgeniya (7x)
2…Nc6 — 24.3% (446 parties)
Ambassadeurs : Groh, Jiri (10x), Bocharov, Dmitry (8x), Snikkers, Naomi (7x), Csom, Istvan (5x), Han Wong, Ingrid (4x), Jakubowski, Karl (4x), Hartsteen, Mark (4x), Solyomvari, Roxanne (4x)
2…Bb4+ — 6.4% (117 parties)
Ambassadeurs : Korobov, Anton (6x), Csom, Istvan (5x), Topalov, Veselin (4x), Kokarev, Dmitry (3x), Gumularz, Szymon (3x), Gavrikov, Viktor (2x), Karolyi, Tibor (2x), Bosboom, Manuel (2x)
2…f5 — 5.7% (104 parties)
Ambassadeurs : Demeter, Peter (7x), Groh, Jiri (2x), Ludvigsen, Jan Helge (2x), Andersen, Harry (2x), Arge, Eilif M (2x), Reimann, Guenther (2x), Zhou, Jianchao (2x), Idani, Pouya (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…Nf6 2…Nc6 2…Bb4+ 2…f5
<1800 86 50% 21% 2% 8%
1800-2200 522 45% 28% 3% 6%
2200-2600 630 45% 25% 9% 6%
2600+ 136 60% 8% 17% 3%
Évolution par décennie (% des parties)
Décennie N parties 2…Nf6 2…Nc6 2…Bb4+ 2…f5
1930s 2 50% 50%
1940s 2 50% 50%
1950s 11 27% 18% 9%
1960s 5 20% 20%
1970s 19 37% 21% 11%
1980s 31 26% 32% 13% 10%
1990s 205 43% 26% 5% 5%
2000s 476 41% 26% 4% 8%
2010s 646 49% 26% 3% 6%
2020s 439 52% 19% 14% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…Nf6 49% 52% ▲ +2.9%
2…Nc6 26% 19% ▼ -7.3%
2…Bb4+ 3% 14% ▲ +10.3%
2…f5 6% 3% ▼ -3.4%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 8 parties
Anand, Viswanathan — 5 parties
Gukesh D — 2 parties
Karpov, Anatoly — 1 partie
Parties historiques
2…Nf6 — 46.3% (850 parties)
1939 — Ragozin, Viacheslav vs Kan, Ilya A — 0-1 — Leningrad RUS
1947 — Abramov, Lev vs Podolny, Evgeni — 1-0 — Moscow RUS
1950 — Canali, Adrien vs Magrin, Antonio — 1/2-1/2 — Milan ITA
1951 — Larsen, Bent vs Hammartang, Agne — 1-0 — Trondheim NOR
1957 — Ingerslev, Aage vs Haahr, Thorkild — 1-0 — Odense DEN
2…Nc6 — 24.3% (446 parties)
1947 — Stoeckl, Ernst vs Kellner, Adolf — 1/2-1/2 — Vienna AUT
1952 — Larsen, Bent vs Lindgard, Gayte — 1-0 — Trondheim NOR
1952 — Madsen, Edward vs Johansson, Ingemar 1966 — 0-1 — Helsinki olm
1971 — Schoeneberg, Manfred vs Schmidt, Hannah — 1-0 — Strasbourg ch20-DDR
1975 — Matera, Salvatore vs Haag, Ervin — 1/2-1/2 — Birmingham ENG
2…Bb4+ — 6.4% (117 parties)
1975 — Cafferty, Bernard vs Bisguier, Arthur B — 0-1 — Birmingham ENG
1975 — Miles, Anthony J vs Corden, Martyn J — 1/2-1/2 — Birmingham ENG
1983 — Gulko, Boris vs Gavrikov, Viktor — 1/2-1/2 — Klaipeda
1983 — Usurpator vs Storm Alvarez, Ailen — 1/2-1/2 — Leiden NED
1985 — Chernin, Alexander vs Gavrikov, Viktor — 1/2-1/2 — Riga ch-URS / zt
2…f5 — 5.7% (104 parties)
1937 — Boros, Samuel vs Gereben, Erno — 1-0 — Budapest m
1959 — Vukovic, Sara vs Djantar, Djordje — 1/2-1/2 — Kragujevac ch14-YUG
1961 — Klaput, Edward vs Sliwa, Bogdan — 0-1 — Katowice ch18-POL
1982 — Timar, Bela vs Timar, Zsolt — 0-1 — Berettyoujfalu
1984 — Toth, Christian Endre vs Terzian, Francisco Antonio — 0-1 — Cabo Frio