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D70d —
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2
Les coups candidats
Ambassadeurs : Stupak, Leonid K (9x), Bator, Robert (3x), Percivaldi, Martin (3x), Bubits, Bence (3x), Salm, Maxwell (2x), Chesters, Graham (2x), Ripley, John M (2x), Alva Castrejon, Winter Gerrard (2x)
Ambassadeurs : Haas, Bernhard (8x), Benicke, Bernd (8x), Brunkow, Axel (8x), Bachmann, Bernd (7x), Wendland, Frank (6x), Stupak, Leonid K (5x), Adly, Ahmed (3x), Kaminski, Marcin (2x)
4…dxc4 — 8.2% (68 parties)
Ambassadeurs : Brustman, Agnieszka (2x), Wittmann, Walter (2x), Weinberger, Tibor (1x), Grob, Henry (1x), Sapre, Ramchandra (1x), Alurkar Advait (1x), Stoltz, Gösta (1x), Pilnik, Herman (1x)
4…e6 — 2.4% (20 parties)
Ambassadeurs : Mason, Donald J (1x), Handelsman, B. (1x), Wall, Alejandro (1x), Gilmore, Jerry (1x), Koster, Ramon (1x), Lesger, Morrison (1x), Muneer, Alsadiq (1x), Kanios, Michal (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Bg7 4…c6 4…dxc4 4…e6
<1800 50 50% 32% 8% 8%
1800-2200 321 51% 39% 7% 3%
2200-2600 284 46% 42% 11% 1%
2600+ 5 — 60% 40% —
Évolution par décennie (% des parties)
Décennie N parties 4…Bg7 4…c6 4…dxc4 4…e6
1950s 13 62% 15% 23% —
1960s 20 70% 30% — —
1970s 13 62% 23% 15% —
1980s 55 64% 25% 7% 4%
1990s 164 59% 32% 7% 1%
2000s 198 43% 44% 10% 3%
2010s 293 51% 39% 6% 3%
2020s 78 45% 42% 10% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Bg7 51% 45% ▼ -6.0%
4…c6 39% 42% ▲ +3.1%
4…dxc4 6% 10% ▲ +3.8%
4…e6 3% 3% ▼ -0.5%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 1 partie
Parties historiques
4…Bg7 — 51.8% (432 parties)
1950 — Salm, Maxwell vs Bostrom, R — 1-0 — Queensland ch
1950 — Bonham, R.W vs Wood, Beau — 1-0 — England
1950 — Salm, Maxwell vs Endzelins, Lucius — 1/2-1/2 — Australia ch-3
1951 — Hallmark, A. vs Paffley, D. — 1/2-1/2 — England
1952 — Newman, Ran vs Rhodes, Herbert Gibson — 1/2-1/2 — Chester ch-BCF
4…c6 — 37.5% (313 parties)
1953 — Boey, Josef vs Herbin, J. — 1/2-1/2 — Copenhagen DEN
1954 — Mengarini, Ariel vs Lombardy, William J — 1-0 — New York, NY USA
1963 — Lazarev, Efim M. vs Alexander, Ken R D — 1/2-1/2 — Kiev UKR
1963 — Bonne, Marck vs Van Dam, Serge — 1/2-1/2 — Belgium
1963 — Schumacher, Helmut vs Huyck, Walter — 1-0 — Belgium
4…dxc4 — 8.2% (68 parties)
1950 — Stoltz, Gösta vs Pilnik, Herman — 1/2-1/2 — Bled SLO
1955 — Weinberger, Tibor vs Grob, Henry — 0-1 — Budapest HUN
1955 — Sapre, Ramchandra vs Alurkar Advait — 1-0 — Indianapolis, IN USA
1977 — Sveinsson, Jon Arni vs Brynjolfsson, Bjorn — 1-0 — Reykjavik ISL
1979 — Grigoriu, Vasile vs Urzica, Albert-Florin — 0-1 — Athens GRE
4…e6 — 2.4% (20 parties)
1982 — Wall, Alejandro vs Gilmore, Jerry — 1-0 — Dayton, OH USA
1987 — Mason, Donald J vs Handelsman, B. — 1-0 — Lansing ch-MI op
1998 — Muneer, Alsadiq vs Kanios, Michal — 1/2-1/2 — ?
1999 — Koster, Ramon vs Lesger, Morrison — 1-0 — Hengelo NED
2001 — Fernandez, Juan Antonio vs Navarrete Miranda, Sebastian Maximo — 1-0 — Mallorca-chT Preferente