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B50q —
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Bd3
Eval: [-0.06]
Les coups candidats
Ambassadeurs : Brodie, Hugh (16x), Vajda, Albert (15x), Martinovic, Slobodan (13x), Campora, Daniel H. (10x), Mrdja, Milan (10x), Rossetto, Hector (9x), Janko, Ladislav (9x), Georgiev, Krum (9x)
4…g6 — 23.5% (1005 parties)
Ambassadeurs : Ghaem Maghami, Ehsan (6x), Vajda, Albert (5x), Papadopulos, Daniel (5x), Menvielle Laccourreye, Augusto (5x), Jonker, Marc (4x), Fedorowicz, John (4x), Mahdy, Khaled (4x), Schubert, Hans Joachim (4x)
4…Bg4 — 14.6% (625 parties)
Ambassadeurs : Martinovic, Slobodan (6x), Zolnierowicz, Krzysztof (6x), Jaworski, Miroslaw (4x), Mahdy, Khaled (4x), Scacco, Mauro (4x), Ghaem Maghami, Ehsan (4x), Kosashvili, Yona (3x), Jonker, Marc (3x)
4…e6 — 3.0% (130 parties)
Ambassadeurs : Brodie, Hugh (2x), Acosta, Pablo Alejandro (2x), Lein, Anatoly (1x), Geller, Efim P. (1x), Pfeiffer, Gerhard (1x), Wantz, Fernand (1x), Gumprich, Kurt (1x), Ahues, Carl (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Nc6 4…g6 4…Bg4 4…e6
<1800 119 50% 25% 7% 9%
1800-2200 1470 51% 25% 14% 4%
2200-2600 2044 53% 24% 17% 1%
2600+ 56 59% 20% 21%
Évolution par décennie (% des parties)
Décennie N parties 4…Nc6 4…g6 4…Bg4 4…e6
1940s 2 50% 50%
1950s 56 68% 14% 5% 5%
1960s 44 66% 11% 16%
1970s 88 56% 28% 8% 5%
1980s 238 64% 18% 14% 2%
1990s 691 51% 27% 13% 2%
2000s 1365 52% 23% 16% 3%
2010s 1446 52% 24% 14% 4%
2020s 339 53% 23% 17% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Nc6 52% 53% ▲ +0.9%
4…g6 24% 23% -0.3%
4…Bg4 14% 17% ▲ +2.1%
4…e6 4% 3% -0.4%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 10 parties
Karpov, Aleksandr — 1 partie
Tal, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
4…Nc6 — 52.9% (2258 parties)
1943 — Czerniak, Magdalena vs Stahlberg, Gideon — 1/2-1/2 — Mar del Plata ARG
1950 — Szabados, Eugenio vs Czerniak, Magdalena — 1-0 — Venice ITA
1950 — Czerniak, Magdalena vs Rossetto, Hector — 1/2-1/2 — Mar del Plata ARG
1951 — Canal, Esteban vs Pilnik, Herman — 1/2-1/2 — Madrid ESP
1951 — Canal, Esteban vs Toran Albero, Roman — 0-1 — Madrid ESP
4…g6 — 23.5% (1005 parties)
1944 — Czerniak, Moshe vs Pelikan, Jorge — 0-1 — La Plata
1953 — Rossetto, Hector vs Wexler, Bernardo — 1-0 — Bariloche
1955 — Sorokin, Nikolay Tikhovich vs Zilber, Israel — 1/2-1/2 — Voroshilovgrad
1955 — Rinder, Gerd vs Bajec, Ivo — 0-1 — Zagreb CRO
1957 — Pfeiffer, Gerhard vs Szilagyi, Gyorgy Laszlo — 1-0 — Sofia BUL
4…Bg4 — 14.6% (625 parties)
1952 — Rellstab, Ludwig Sr vs Kottnauer, Cenek — 0-1 — Helsinki olm
1954 — Levin Godoy, Matias Bastian vs Stoliarov, L. — 0-1 — Ukraine
1954 — Rossetto, Hector vs Bauza, Lorenzo — 0-1 — Mar del Plata ARG
1960 — Ghionzoli Soloviev, Leonardo vs Czistjakow — 1/2-1/2 — Moscow ch sf
1961 — Ghionzoli Soloviev, Leonardo vs Tatajew — 1-0 — Dagestan
4…e6 — 3.0% (130 parties)
1953 — Gumprich, Kurt vs Ahues, Carl — 1/2-1/2 — Hamburg GER
1955 — Lein, Anatoly vs Geller, Efim P. — 1/2-1/2 — Leningrad RUS
1955 — Pfeiffer, Gerhard vs Wantz, Fernand — 1-0 — Luxembourg
1974 — Oney, Adil Feridun vs Olafsson, Helgi — 0-1 — Groningen NED
1975 — Becker, Norbert vs Park, Norman — 1-0 — Espelkamp