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A25x — Closed (1930)
1.c4 e5 2.Nc3 Nc6 3.g3 Nf6 4.Bg2 Bb4 5.Nd5
Les coups candidats
5…Bc5 — 46.9% (1156 parties)
Ambassadeurs : Hanken, Jerome B (5x), Suba, Mihai (5x), Thirion, Marcel (4x), Polak, Tomas (3x), Timmermans, Ivo (3x), Gomez Jurado, Luis Alberto (3x), Kovacevic, Blazimir (3x), Tonoli, Walter (3x)
5…O-O — 24.8% (612 parties)
Ambassadeurs : Popov, Vladimir Valentinovich (11x), B, Owen (10x), Misericordia, Antonio (6x), Daniel Misiko (6x), Bartsch, Reinhard Andrea (4x), Jordan Arenas, Manuel (4x), Bolda, Günther (4x), Tsenkov, Ljubomir (4x)
5…Nxd5 — 14.2% (349 parties)
Ambassadeurs : Seret, Jean-Luc (2x), Sikorsky, Horst (2x), Chen, Yang(JS) (2x), Andersen, Borge (1x), Kupferstich, Moises (1x), Polugaevsky, Lev (1x), Fuchs, Reinhart (1x), Russell, Hanon W (1x)
5…a5 — 7.2% (177 parties)
Ambassadeurs : Lipecki, Alexander (3x), Hentunen, Asko (3x), Osmanodja, Filiz (3x), Heindrich, Mark (2x), Gausel, Einar J (2x), Foisor, Cristina-Adela (2x), Cortés Olivares, Ricardo (2x), Opasiak, Dustin Tennessee (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 159 35% 27% 19% 7%
1800-2200 1117 45% 26% 15% 6%
2200-2600 922 52% 22% 12% 10%
2600+ 29 62% 28% 3% 7%
Évolution par décennie (% des parties)
Décennie N parties 5…Bc5 5…O-O 5…Nxd5 5…a5
1950s 1 — — 100% —
1960s 4 25% 25% 25% 25%
1970s 30 43% 30% 20% 7%
1980s 66 53% 15% 18% 11%
1990s 296 54% 14% 18% 8%
2000s 618 53% 15% 16% 7%
2010s 1174 44% 32% 12% 6%
2020s 274 36% 32% 12% 9%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…Bc5 44% 36% ▼ -8.1%
5…O-O 32% 32% ▲ +0.9%
5…Nxd5 12% 12% +0.0%
5…a5 6% 9% ▲ +3.3%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Parties historiques
5…Bc5 — 46.9% (1156 parties)
1965 — Partyka, Kazimierz vs De Graaff, Rag — 0-1 — Amsterdam NED
1973 — Naranja, Renato vs Wotulo, Max — 1-0 — Manila PHI
1974 — Crookes, Wayne vs Chow, Robert — 1-0 — Vancouver BC CAN
1975 — Caraballo, Jesus vs Sisniega Campbell, Marcel — 0-1 — Guatemala City GUA
1976 — Rogoff, Kenneth vs Blumenfeld, Rudy — 1-0 — Lone Pine open
5…O-O — 24.8% (612 parties)
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
1976 — MAGADZIRE SHEPHERD vs White, Duncan — 0-1 — Corr.
5…Nxd5 — 14.2% (349 parties)
1957 — Andersen, Borge vs Kupferstich, Moises — 0-1 — Odense DEN
1966 — Polugaevsky, Lev vs Fuchs, Reinhart — 1-0 — Sochi RUS
1970 — Uddenfeldt, Dan vs Holt, Eric — 0-1 — Groningen NED
1971 — Artemis, Ant vs Bastas, Grigorios — 0-1 — Athens GRE
1975 — Matas, Stanislav vs Demeter, Peter — 1-0 — Hlohovec
5…a5 — 7.2% (177 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