A46m —
1.d4 Nf6 2.Nf3 e6 3.g3 b5
Eval: [+0.19]
Les coups candidats
4.Bg2 — 82.5% (3577 parties)
Ambassadeurs : Romanishin, Oleg M (29x), Kurajica, Bojan (23x), Miezis, Normunds (23x), Cosma, Ioan (21x), Speelman, Jon S (20x), Andersson, Ulf (17x), Cosma, Elena-Luminita (17x), Deforel, Jorge Eduardo (16x)
4.a4 — 6.3% (274 parties)
Ambassadeurs : Trickov, Vasil (5x), Sciborowski, Miroslaw (4x), Sabol, Marian (4x), Asilkefeli, Metin (3x), Eckhardt, Claudia (3x), Kozlov, Oleg (3x), Anic, Darko (2x), Goldin, Alexander (2x)
4.Qd3 — 5.6% (242 parties)
Ambassadeurs : Kurajica, Bojan (13x), Huebner, Robert (6x), Burmakin, Vladimir (5x), Dorfman, Iossif (3x), Schlosser, Philipp (3x), Seirawan, Yasser (3x), Gross, Georg (3x), Ivanov, Alexander V. (3x)
4.Bg5 — 3.2% (137 parties)
Ambassadeurs : Romanishin, Oleg M (19x), Bischoff, Klaus (4x), Tal, Mikhail (3x), Polugaevsky, Lev (3x), Speelman, Jon S (3x), Huebner, Robert (3x), Dragieva, Denitza (3x), Kurajica, Bojan (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Bg2 4.a4 4.Qd3 4.Bg5
<1800 34 94% 3%
1800-2200 983 86% 8% 2% 2%
2200-2600 2977 81% 6% 7% 4%
2600+ 131 73% 13% 11%
Évolution par décennie (% des parties)
Décennie N parties 4.Bg2 4.a4 4.Qd3 4.Bg5
1920s 1 100%
1960s 4 100%
1970s 27 93% 7%
1980s 276 83% 5% 6% 4%
1990s 618 83% 5% 7% 2%
2000s 1092 83% 7% 8% 2%
2010s 1736 82% 7% 4% 4%
2020s 584 82% 6% 3% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Bg2 82% 82% ▲ +0.8%
4.a4 7% 6% ▼ -0.6%
4.Qd3 4% 3% ▼ -1.1%
4.Bg5 4% 3% ▼ -1.6%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 9 parties
Karpov, Anatoly — 4 parties
Kasparov, Garry — 3 parties
Smyslov, Vladimir — 2 parties
Kramnik, Vladimir — 2 parties
Ding, Liren — 2 parties
Carlsen, Magnus — 2 parties
Karpov, Aleksandr — 1 partie
Hou, Yifan — 1 partie
Parties historiques
4.Bg2 — 82.5% (3577 parties)
1928 — Schelfhout, Willem vs Sapira, Emmanuel — 0-1 — The Hague NED
1961 — Pavlenko, Yury vs Roizman, Abram Y — 0-1 — Batumi GEO
1965 — Radulescu, Mihai vs Soos, Bela — 1/2-1/2 — Bucharest ROU
1968 — Pfeil, Hartmut vs Schilling, Rolf — 1-0 — Neukieritzsch
1968 — Rovira Mas, Jorge vs Myers, Hugh — 1-0 — Lugano SUI
4.a4 — 6.3% (274 parties)
1971 — Hartoch, Robert G vs Timman, Jan H — 1-0 — Amsterdam NED
1979 — Rashkovsky, Nukhim N vs Makarichev, Sergey — 1/2-1/2 — Minsk ch-URS
1980 — Qendro, Llambi vs Tiller, Bjorn — 1/2-1/2 — La Valetta
1982 — Heemskerk, Wim vs Douven, Rudy — 0-1 — NED-ch sf B Eindhoven NED
1983 — Simic, Radoslav K vs De Firmian, Nick — 1-0 — Stara Pazova
4.Qd3 — 5.6% (242 parties)
1980 — Beliavsky, Alexander G vs Stean, Michael F — 1/2-1/2 — Baden-Baden GER
1983 — Dorfman, Iossif vs Skrobek, Ryszard — 1-0 — Warsaw POL
1983 — Alburt, Lev vs Kudrin, Sergey — 1/2-1/2 — New York, NY USA
1983 — Chekhov, Valery A vs Chernin, Alexander — 1/2-1/2 — Irkutsk
1983 — Plachetka, Jan vs Karolyi, Tibor — 1-0 — Kecskemet HUN
4.Bg5 — 3.2% (137 parties)
1983 — Tarjan, James vs De Firmian, Nick — 1-0 — USA
1984 — Tal, Mikhail vs Polugaevsky, Lev — 1/2-1/2 — SSSR
1984 — Viaud, Anthony vs Seret, Jean-Luc — 0-1 — Val Thorens FRA
1984 — Romanishin, Oleg M vs Horvath, Tamas — 0-1 — Lvov UKR
1984 — Tal, Mikhail vs Polugaevsky, Lev — 1/2-1/2 — ?