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A56d —
1.d4 Nf6 2.c4 c5 3.e3 g6 4.Nc3
Eval: [+0.25]
Les coups candidats
4…Bg7 — 87.8% (1872 parties)
Ambassadeurs : Inkiov, Ventzislav (22x), Somogyi, Istvan (12x), Bisguier, Arthur B (10x), Certek, Pavel (9x), Timar, Zsolt (8x), Justo, Damian (7x), Vasiljev, Jurij (6x), Rogers, Ian (5x)
4…cxd4 — 10.1% (215 parties)
Ambassadeurs : Amura, Claudia (3x), Roose, Alex (2x), Timar, Zsolt (2x), Carlstedt, Jonathan (2x), Marek, Herbert (2x), Fokin, Aleksandr (2x), Safarli, Josefine (2x), Smith, Andrew Philip (1x)
4…b6 — 1.2% (25 parties)
Ambassadeurs : Abad Martinez, Diego (1x), Gadia, Olicio (1x), Nunez, Hiber (1x), Martinez Cordobes, Milton (1x), Verstappen, M. (1x), Hollinger, R. (1x), Miranda Perez, Ruben (1x), Camara Arturo (1x)
4…Na6 — 0.4% (9 parties)
Ambassadeurs : Fournier, Sylvain (1x), Boudier, Eric (1x), Kaczorowski, Piotr (1x), Kujawski, Wlodzimierz (1x), Janusch, Gerd (1x), Swetlakow, Valentin (1x), Limbourg, Remi (1x), Van De Putte, Ben (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Bg7 4…cxd4 4…b6 4…Na6
<1800 87 72% 24% 2%
1800-2200 822 85% 12% 1% 1%
2200-2600 754 94% 6% 0%
2600+ 13 85% 15%
Évolution par décennie (% des parties)
Décennie N parties 4…Bg7 4…cxd4 4…b6 4…Na6
1940s 2 100%
1950s 8 100%
1960s 39 97% 3%
1970s 96 99%
1980s 147 97% 3% 1%
1990s 499 91% 6% 1% 1%
2000s 609 86% 12% 2% 1%
2010s 648 84% 14% 1% 0%
2020s 85 80% 18% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Bg7 84% 80% ▼ -3.6%
4…cxd4 14% 18% ▲ +3.3%
4…b6 1% 1% +0.4%
4…Na6 0% 0% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Smyslov, Vladimir — 1 partie
Parties historiques
4…Bg7 — 87.8% (1872 parties)
1947 — Gadalinski, Jan vs Sajtar, Jaroslav — 0-1 — Warsaw POL
1949 — Rossetto, Hector vs Czerniak, Moshe — 0-1 — Santa Fe
1955 — Weinberger, Tibor vs Tapaszto Binet, Laszlo — 0-1 — Budapest HUN
1956 — Joffe, Manne vs Boey, Josef — 1/2-1/2 — Moscow RUS
1956 — Boleslavsky vs Vukovic Zupan, Luka — 0-1 — Krynica Krynica POL
4…cxd4 — 10.1% (215 parties)
1980 — Bell, James Taggart vs Moody, David W — 1-0 — Atlanta, Ga.
1983 — Smith, Andrew Philip vs Brouk, Rayan — 0-1 — Groningen NED
1985 — Schewe, Bernhard vs Huth, Volkmar — 1/2-1/2 — Kamenz
1989 — Vukoje, Aleksije vs Valencak, Stanislav — 0-1 — Zurich SUI
1990 — Kubri, Tiit vs Decallonne Bernard — 0-1 — ?
4…b6 — 1.2% (25 parties)
1966 — Abad Martinez, Diego vs Gadia, Olicio — 0-1 — Havana CUB
1983 — Nunez, Hiber vs Martinez Cordobes, Milton — 1-0 — Uruguay
1991 — Palme, Rudolf vs von Hoesslin, Holger — 1-0 — Wch Seniors Bad Woerishofen G
1992 — Verstappen, M. vs Hollinger, R. — 1-0 — Belgium-Ireland
1992 — Baumann, Claude vs Clausen, Martin Koch — 1-0 — Zuerich op2 Zurich SUI
4…Na6 — 0.4% (9 parties)
1990 — Kaczorowski, Piotr vs Kujawski, Wlodzimierz — 1-0 — Katowice POL
1994 — Fournier, Sylvain vs Boudier, Eric — 1-0 — Le Touquet
1996 — Janusch, Gerd vs Swetlakow, Valentin — 1-0 — GER
2003 — Limbourg, Remi vs Van De Putte, Ben — 0-1 — Geraardsbergen
2008 — Simovic, Mladen vs Katavic, Borivoj — 0-1 — Split CRO