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A21v — King’s
1.c4 e5 2.Nc3 f5 3.g3 Nf6 4.Bg2
Les coups candidats
Ambassadeurs : Carls, Carl (3x), Bogoljubow, Efim (3x), Weyerstrass, Ronald (3x), Bachofner, Andreas (3x), Herzog, Klaus (3x), Bonoldi, Fabio (3x), Obukhov, Gennady (3x), Golombek, Harry (2x)
4…c6 — 16.0% (429 parties)
Ambassadeurs : Horvath, Zoltan (4x), Andersen, Borge (3x), Hapala, Michaela (3x), Bielmeier, Ludwig (3x), Arsenault, Michel (3x), Laurin Jacques (3x), Abrahams, Gerald (2x), Herzog, Franz (2x)
4…d6 — 14.9% (401 parties)
Ambassadeurs : Heidenfeld, Wolfgang (3x), Levitt, Jonathan P (3x), Muth, Matthias Potisarath (3x), Hardy, Olivier (2x), Konopleva, Natalia (2x), Tu, Hoang Thong (2x), Ruckschloss, Karol (2x), Urday, Henry (2x)
4…Bb4 — 13.1% (351 parties)
Ambassadeurs : Westerinen, Heikki M.J. (15x), Milov, Leonid (6x), Ljubisavljevic, Zivojin Z (5x), Herzog, Klaus (4x), Ochoa De Echaguen, Francisco Javier (3x), Larsen, Benjamin Holsko (3x), De La Villa Garcia, Jesus Maria (3x), Smyslov, Vladimir (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Nc6 4…c6 4…d6 4…Bb4
<1800 106 22% 23% 8% 12%
1800-2200 1202 24% 18% 15% 10%
2200-2600 704 27% 8% 16% 23%
2600+ 8 12% 12% 25%
Évolution par décennie (% des parties)
Décennie N parties 4…Nc6 4…c6 4…d6 4…Bb4
1820s 1
1890s 1 100%
1910s 1
1920s 4 50% 25%
1930s 8 25% 12%
1940s 7 57% 14% 29%
1950s 28 14% 21% 18% 4%
1960s 65 32% 18% 18% 5%
1970s 75 29% 9% 21% 4%
1980s 98 18% 11% 11% 23%
1990s 566 21% 17% 17% 14%
2000s 855 22% 18% 15% 12%
2010s 846 28% 15% 13% 13%
2020s 132 27% 11% 15% 20%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Nc6 28% 27% ▼ -1.2%
4…c6 15% 11% ▼ -3.2%
4…d6 13% 15% ▲ +2.3%
4…Bb4 13% 20% ▲ +6.6%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 4 parties
Tal, Mikhail — 2 parties
Botvinnik, Mikhail — 2 parties
Karpov, Aleksandr — 1 partie
Parties historiques
4…Nc6 — 24.7% (663 parties)
1898 — Blackburne, Joseph vs Schiffers, Emanuel — 1/2-1/2 — Vienna AUT
1922 — Carls, Carl vs Weenink, Henri — 1/2-1/2 — Berlin GER
1922 — Carls, Carl vs Gomez Gruber, Maria Gabriela — 1-0 — Bad Oeynhausen GER
1932 — Reinhardt, Heinrich vs Kapfer Ewald — 1-0 — Hamburg-Altona GER
1939 — Melngailis, Emilis vs Bogoljubow, Efim — 0-1 — Kemeri / Riga
4…c6 — 16.0% (429 parties)
1927 — Carls, Carl vs Romih, Max — 1-0 — London ENG
1936 — Craddock, James Marston vs Abrahams, Gerald — 1/2-1/2 — Nottingham ENG
1947 — Lauterbach, Werner vs Herzog, Franz — 0-1 — Riedenburg
1951 — Habermann, Ewald vs Schuster, Theodor — 0-1 — Stuttgart GER
1955 — Thiellement, Andre vs Burstein, Sylvain — 1-0 — Toulouse FRA
4…d6 — 14.9% (401 parties)
1942 — Aramanovich, I vs Yudovich, Mikhail M — 0-1 — Moscow RUS
1947 — Lauterbach, Werner vs Niephaus, Walter — 0-1 — Riedenburg
1951 — Vaitonis, Povilas vs Holowach, Walter — 1-0 — Vancouver
1955 — Perkins, N. vs Walker IV, Joseph D — 1-0 — Aberystwyth ch-BCF
1958 — Lombardy, William J vs Heidenfeld, Wolfgang — 1-0 — Munich GER
4…Bb4 — 13.1% (351 parties)
1953 — Maicherczyk, Georg vs Ahues, Carl — 0-1 — Leipzig GER
1962 — Gross, Georg vs Bolton, Alyssa — 0-1 — Eastern Open
1967 — Gotay, J vs Rossolimo, Nicolas — 0-1 — San Juan
1969 — Astacio Colon, Angel G. vs Larsen, Benjamin Holsko — 0-1 — San Juan
1971 — Ost-Hansen, Jacob vs Herzog, Adolf — 1-0 — Athens GRE