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A25x — Closed
1.c4 e5 2.Nc3 Nc6 3.g3 Nf6 4.Bg2 Bb4 5.Nd5
Eval: [+0.38]
Les coups candidats
5…Bc5 — 47.1% (1132 parties)
Ambassadeurs : Hanken, Jerome B (5x), Suba, Mihai (5x), Polak, Tomas (4x), Thirion, Marcel (4x), Newman, Nelson (4x), Schuermans, Robert (4x), Van Gool, Jeroen J W (4x), Vokhidov, Shamsiddin (4x)
5…O-O — 24.9% (599 parties)
Ambassadeurs : Popov, Vladimir Valentinovich (12x), Owens, Johnny (10x), Misericordia, Antonio (6x), Mostowik, Daniel (6x), Tsenkov, Ljubomir (5x), Jordan Arenas, Manuel (4x), Bartsch, Reinhard Andrea (4x), Holzhaeuer, Mathias (3x)
5…Nxd5 — 14.2% (341 parties)
Ambassadeurs : Vaulin, Alexander P. (3x), Simon, Peter (3x), Kaprinay (2x), Seret, Jean-Luc (2x), Zavoronkov, Vladimir (2x), Sikorsky, Horst (2x), O'Cinneide, Mel (2x), O`Connor, Eddie (2x)
5…a5 — 7.0% (167 parties)
Ambassadeurs : Fyllingen, Roy Harald (6x), Lipecki, Alexander (3x), Hentunen, Asko (3x), Osmanodja, Filiz (3x), Heindrich, Mark (2x), Vulevic, Vjekoslav (2x), Gausel, Einar J (2x), Herder, David A. (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…Bc5 5…O-O 5…Nxd5 5…a5
<1800 74 42% 22% 16% 4%
1800-2200 977 46% 26% 14% 7%
2200-2600 1007 50% 24% 13% 9%
2600+ 29 69% 21% 3% 7%
Évolution par décennie (% des parties)
Décennie N parties 5…Bc5 5…O-O 5…Nxd5 5…a5
1920s 2 100%
1930s 5 40% 20% 40%
1940s 1 100%
1950s 1 100%
1960s 4 25% 25% 25% 25%
1970s 30 43% 30% 20% 7%
1980s 67 52% 15% 18% 10%
1990s 295 55% 13% 18% 8%
2000s 618 53% 15% 16% 7%
2010s 1167 44% 32% 12% 6%
2020s 212 36% 36% 10% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…Bc5 44% 36% ▼ -8.4%
5…O-O 32% 36% ▲ +4.6%
5…Nxd5 12% 10% ▼ -2.1%
5…a5 6% 8% ▲ +1.8%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Parties historiques
5…Bc5 — 47.1% (1132 parties)
1930 — Kashdan, Isaac vs Mieses, Jacques — 1-0 — Frankfurt GER
1933 — Mueller, Hans vs Glass, Eduard — 1-0 — Vienna AUT
1965 — Plater, Kazimierz vs De Graaff, Rag — 0-1 — Amsterdam II
1973 — Naranja, Renato vs Wotulo, Max — 1-0 — Manila PHI
1974 — Crookes, Wayne vs Chow Robert — 1-0 — Vancouver BC CAN
5…O-O — 24.9% (599 parties)
1939 — Hanauer, Milton Loeb vs Mccormick Sanchez, Elliot Gael — 1/2-1/2 — Ventnor City
1963 — Flesch, János vs Gereben, Erno — 1-0 — Reggio Emilia ITA
1971 — Benko, Pal vs Bisguier, Arthur B — 1/2-1/2 — Malaga ESP
1972 — Polgar, Istvan vs Gallmeyer, Peter — 1-0 — Bagneux FRA
1973 — Speelman, Jon S vs Pye, Raymond — 1/2-1/2 — Schilde
5…Nxd5 — 14.2% (341 parties)
1926 — Kaprinay vs Hubner, Harald — 1-0 — Berlin GER
1926 — Kaprinay vs Huebner, Alan-Ari — 1-0 — FS 1930
1938 — Watson Charles Gilbert M vs Green, Max — 1-0 — Sydney AUS
1938 — Golombek, Harry vs Klein, Ernst — 1/2-1/2 — Hastings ENG
1942 — Santasiere, Anthony vs Reinfeld, Wolfgang — 1-0 — New York, NY USA
5…a5 — 7.0% (167 parties)
1967 — Kavalek, Lubomir vs Pietzsch, Wolfgang — 1-0 — Sarajevo BIH
1972 — Norby, Peter H. vs Pedersen, Eigil — 1-0 — Esbjerg DEN
1979 — Negulescu, Adrian vs Rivas Pastor, Manuel — 1/2-1/2 — Groningen ch-EU jr
1982 — Mueller, Gert vs Ostermeyer, Peter, Dr. — 1/2-1/2 — FRG-ch Bad Neuenahr
1984 — Plachetka, Jan vs Pribyl, Josef — 1/2-1/2 — Czechoslovakia