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B23s — Closed Grand Prix
1.e4 c5 2.Nc3 Nc6 3.f4 g6
Eval: [-0.37]
Les coups candidats
4.Nf3 — 94.1% (18693 parties)
Ambassadeurs : Koronowski, Heinz-Juergen (48x), Fritsche, Frank (46x), Weeramantry, Sunil (44x), Szell, Lajos (40x), Pessi, Emil-George (36x), Boronyak, Arpad (36x), Broadway, Dennis (36x), Wippermann, Till (35x)
4.Bc4 — 2.5% (489 parties)
Ambassadeurs : Rabovszky, Gyorgy (13x), Schultz, Heide (9x), Falkowski, Dawid (6x), Dellenbach, Jean-Paul (5x), Lai, Antoine (4x), Benard, Anne-Laurie (4x), Ortegon Villacorte, Linda Daniela (4x), Karia, Rishul (4x)
4.Bb5 — 1.8% (360 parties)
Ambassadeurs : Hofer, Rudolf (25x), Dunn, John (8x), Van der Veen, Jan (7x), Petrosian, Tigran L. (7x), Kumpulainen, Kalle (3x), Blesic, Vaso (3x), Ruiz Olate, Emily Andrea (3x), Steinschuld, Jo (3x)
4.g3 — 1.0% (192 parties)
Ambassadeurs : Smolak, Ewa (13x), Burakovsky, Marat (6x), Haik, Aldo (4x), Klotz, Sonja (3x), Shivacheva, Donika (3x), Nastase, Andreea-Cristina (3x), Brychta, Ivan (2x), Hallmann, Norbert (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Nf3 4.Bc4 4.Bb5 4.g3
<1800 892 89% 5% 3% 1%
1800-2200 9401 94% 3% 2% 1%
2200-2600 5688 96% 1% 1% 1%
2600+ 29 97% 3%
Évolution par décennie (% des parties)
Décennie N parties 4.Nf3 4.Bc4 4.Bb5 4.g3
1880s 1 100%
1940s 6 100%
1950s 27 89% 7% 4%
1960s 157 91% 4% 2%
1970s 270 96% 3%
1980s 520 95% 2% 1% 2%
1990s 3682 95% 3% 1% 1%
2000s 6810 94% 3% 1% 1%
2010s 6953 94% 2% 3% 1%
2020s 1433 94% 2% 3% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Nf3 94% 94% +0.2%
4.Bc4 2% 2% -0.5%
4.Bb5 3% 3% +0.0%
4.g3 1% 1% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 3 parties
Hou, Yifan — 3 parties
Smyslov, Vladimir — 2 parties
Tal, Mikhail — 2 parties
Gukesh D — 2 parties
Euwe, Max — 1 partie
Kramnik, Vladimir — 1 partie
Botvinnik, Mikhail — 1 partie
Parties historiques
4.Nf3 — 94.1% (18693 parties)
1941 — Bluemich, Max vs Palme, Holger — 0-1 — Bad Elster
1941 — Euwe, Max vs Muhring, Willem Jan — 1/2-1/2 — NED
1948 — Habermann, Ewald vs Wolk, Sigmund — 1-0 — Esslingen
1948 — Troianescu, Octav vs Opocensky, Karel — 1/2-1/2 — Karlovy Vary
1949 — Pogrebissky, Iosif vs Novotelnov, Nikolai — 0-1 — Tbilisi GEO
4.Bc4 — 2.5% (489 parties)
1950 — Poulsen, Christian vs Reshevsky, Samuel — 0-1 — Dubrovnik CRO
1952 — Poulsen, Christian vs Plater, Kazimierz — 1/2-1/2 — Helsinki olm
1970 — Abrahams Gordon, Francisco Tomas vs Chaikovskaja, Alla — 1-0 — Leningrad RUS
1972 — Van Geet, Dirk Daniel vs Kraidman, Yair — 1/2-1/2 — Amsterdam NED
1973 — Gilmore, D. vs Harmon, W. — 1-0 — Dayton 500 miniatur
4.Bb5 — 1.8% (360 parties)
1963 — Gaprindashvili, Nona vs Blagidze, Alexander — 1-0 — USSR
1964 — Kupka, Slavoj vs Hýbl, Jaroslav — 0-1 — Brno CZE
1965 — Kupka, Slavoj vs Plachetka, Jan — 1/2-1/2 — Harrachov
1965 — Winter, Irene vs Scholz, Jutta — 1-0 — Annaberg-Buchholz
1966 — Acevedo Carmona, Juan Diego vs Bolbochan, J. — 1/2-1/2 — Rio Hondo zt
4.g3 — 1.0% (192 parties)
1881 — Zukertort, Johannes vs Blackburne, Joseph — 1-0 — London ENG
1959 — Hennings, Artur vs Kuettner, Uwe — 0-1 — Boehlen
1961 — Havansi, Erkki E.T. vs Jansa, Vlastimil — 0-1 — Helsinki FIN
1967 — Grefe, John A vs Blackstone, John — 0-1 — Santa Monica, CA USA
1968 — Dague, Georges vs Dubois, Robert — 0-1 — ?