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B23m — Closed (1951)
1.e4 c5 2.Nc3 Nc6 3.Bb5 Nd4
Les coups candidats
4.Bc4 — 60.6% (6458 parties)
Ambassadeurs : Pirs, Matjaz (54x), Tissir, Mohamed (50x), Staf, Gunnar (35x), Marholev, Dimitar (33x), Lyell, Mark (33x), Simonian, Hrair (33x), Solak, Dragan (24x), Heberla, Bartlomiej (23x)
4.Nf3 — 33.2% (3543 parties)
Ambassadeurs : Pridorozhni, Aleksei (39x), Daulyte-Cornette, Deimante (33x), Lyell, Mark (20x), Thesing, Matthias (19x), Lagarde, Maxime (15x), Muzychuk, Mariya (14x), Muzychuk, Anna (13x), Krivec, Jana (13x)
4.a4 — 2.2% (232 parties)
Ambassadeurs : Shilin, Denis (11x), Tekielak, Sebastian (10x), Keitlinghaus, Ludger (8x), Thesing, Matthias (7x), Demchenko, Aleksandr (6x), Remy, Janina (5x), Volovikov, Anton (5x), Phunhon Lopez, Daniel Alejandro (5x)
4.Ba4 — 1.8% (193 parties)
Ambassadeurs : Petrosian, Tigran L. (10x), Mitkov, Nikola (10x), Sirkova, Darena (7x), Iuldachev, Saidali (6x), Tiviakov, Sergei (4x), Lipecki, Alexander (4x), Valencia Ciordia, José A. (3x), Staf, Gunnar (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Bc4 4.Nf3 4.a4 4.Ba4
<1800 588 55% 35% 2% 1%
1800-2200 4587 62% 32% 2% 1%
2200-2600 5077 61% 34% 2% 2%
2600+ 127 28% 63% 6% 2%
Évolution par décennie (% des parties)
Décennie N parties 4.Bc4 4.Nf3 4.a4 4.Ba4
1950s 2 100%
1960s 3 33% 33%
1970s 3 100%
1980s 20 60% 25% 5%
1990s 194 53% 21% 17% 3%
2000s 2642 84% 8% 2% 5%
2010s 4400 71% 24% 1% 1%
2020s 3398 30% 67% 2% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Bc4 71% 30% ▼ -40.7%
4.Nf3 24% 67% ▲ +43.1%
4.a4 1% 2% ▲ +1.0%
4.Ba4 1% 0% ▼ -1.3%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 10 parties
Carlsen, Magnus — 6 parties
Kasparov, Garry — 1 partie
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Parties historiques
4.Bc4 — 60.6% (6458 parties)
1951 — Herrmann, Ludwig vs Troianescu, Octav — 0-1 — Sopot
1955 — Burstein, Sylvain vs Boutteville, Cesar — 0-1 — Toulouse FRA
1969 — Martin, Benjamin M S vs Brodie, Hugh — 0-1 — Montreal Quebec op
1971 — Rubin, Max vs Blackstone, John — 0-1 — California
1978 — Nikolic, Stanimir vs Janosevic, Dragoljub — 1-0 — Smederevska Palanka YUG
4.Nf3 — 33.2% (3543 parties)
1986 — Mendez, Gustavo vs Panno, Oscar — 0-1 — Ciudad de Ushuaia
1986 — Chaves, Joara vs Gocheva, Rumiana — 0-1 — Dubai UAE
1986 — Sarapu, Ortvin vs Guevara, Marc Joseph — 1/2-1/2 — Dubai UAE
1986 — Lantier, Roger vs Charest, Johanne — 1/2-1/2 — St-Lin CAN
1989 — Schlenker, Jochen vs Kurz, Eugen — 0-1 — Kehl BM
4.a4 — 2.2% (232 parties)
1985 — Folk, Petr vs Stratil, Ladislav — 0-1 — Karvina
1990 — Keitlinghaus, Ludger vs Emunds, Hans Georg — 1-0 — Muenster GER
1990 — Beran, Joseph vs Bricard, Emmanuel — 0-1 — Toulouse FRA
1991 — Keitlinghaus, Ludger vs Danschczyk, Christian — 1-0 — Duitsland tt
1991 — Campos Navarro, Mariel Melanie vs Maksimovic, Suzana — 0-1 — Sparti
4.Ba4 — 1.8% (193 parties)
1968 — Blayivas, H. vs Blackstone, John — 0-1 — San Francisco, Ca
1995 — Wood, Clarence vs Nasman Per — 1-0 — IECG CUP95-PR.029
1999 — Bohne, Yvonne vs Uhrig, Heinz — 1/2-1/2 — Hassloch
1999 — Richert, Clement vs Plantet, Marc — 0-1 — Montigny le Bretonneux
1999 — Werle, Jan vs Jens, Jelmer — 1-0 — Hoogeveen NED