A57e —
1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nf3 Bb7
Les coups candidats
Ambassadeurs : Ottenweller, Wolfgang (12x), Degterev, Pavel (11x), Ernst, Thomas (6x), Mainka, Romuald (6x), Loeffler, Stefan (6x), Alburt, Lev (5x), Nikolaidis, Ioannis NA (5x), Pessoa, Francisco Azevedo (5x)
5.Qc2 — 18.4% (382 parties)
Ambassadeurs : Geiger, Walter (6x), Hanko, Pavel (5x), Popovics, Adam (4x), Hoffmann, Micha1 (4x), Moskalenko, Viktor (3x), Tirard, Hugo (3x), Zueger, Beat (3x), Krueger, Erich (3x)
5.Nbd2 — 12.2% (252 parties)
Ambassadeurs : Hoang, Thanh Trang (10x), Amann, Klaus (7x), Fogarasi, Tibor (6x), Lahdenmaeki, Leo (4x), Pessoa, Francisco Azevedo (4x), Flear, Glenn C (4x), Korchnoi, Viktor (3x), Shariyazdanov, Andrey (3x)
5.Nc3 — 6.2% (128 parties)
Ambassadeurs : Steiner, Endre (2x), Sokolov, Ivan (2x), Reca, Damian M (1x), Reti, Richard (1x), Riumin, Igor (1x), Alatortsev, Vladimir N. (1x), Von Doery, Ladislaus (1x), Balogh, Janos (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.a4 5.Qc2 5.Nbd2 5.Nc3
<1800 72 28% 11% 19% 3%
1800-2200 616 30% 20% 10% 8%
2200-2600 1002 45% 20% 14% 5%
2600+ 20 60% 15% 5%
Évolution par décennie (% des parties)
Décennie N parties 5.a4 5.Qc2 5.Nbd2 5.Nc3
1920s 8 38% 50%
1930s 5 20% 20% 20% 20%
1940s 2 50%
1950s 9 44% 11%
1960s 16 31% 6% 12% 6%
1970s 31 71% 6% 6% 10%
1980s 181 68% 6% 7% 4%
1990s 417 56% 9% 8% 5%
2000s 851 32% 21% 18% 6%
2010s 483 28% 27% 9% 7%
2020s 68 26% 26% 7% 7%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.a4 28% 26% ▼ -1.3%
5.Qc2 27% 26% -0.0%
5.Nbd2 9% 7% ▼ -1.3%
5.Nc3 7% 7% +0.3%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Parties historiques
5.a4 — 39.4% (815 parties)
1922 — Rubinstein, Akiba vs Spielmann, Rudolf — 1-0 — Vienna AUT
1922 — Rubinstein, Akiba vs Spielmann, Rudolf — 1-0 — Vienna AUT
1922 — Spielmann, Rudolf vs Rubinstein, Akiba — 0-1 — Vienna AUT
1937 — Bolbochan, J. vs Keres, Paul — 0-1 — Stockholm SWE
1955 — Bergsma, Klaas vs Prins, Laura — 0-1 — Beverwijk NED
5.Qc2 — 18.4% (382 parties)
1933 — Podhorzer, David vs Spielmann, Rudolf — 0-1 — Vienna AUT
1943 — Prucha Karel vs Keres, Paul Petrovich — 1/2-1/2 — it, Prague CZE
1961 — Molnar, Istvan vs Witkowski, Stefan — 0-1 — Warsaw POL
1972 — Uusi, Gunnar vs Hermlin, Aarne — 1/2-1/2 — Tartu
1977 — Zimmer, Peter vs Kertesz, Alfred — 1/2-1/2 — Timisoara
5.Nbd2 — 12.2% (252 parties)
1932 — Querencio vs Broggi Fiallos, Nathan — 0-1 — Buenos Aires ARG
1965 — Jamieson, Robert M vs Gonzalez Mestres, Luis — 1-0 — Wch U20 q-3 Barcelona ESP
1967 — Zara, Dan vs Reicher, Emanoil-George — 1/2-1/2 — Bucharest ROU
1970 — Fabrega, Enrique vs Bronstein, Luis Marcos — 0-1 — Cordoba ARG
1973 — Olafsson, Magnus Bjorn vs Kroll, Ove — 1-0 — Hallsberg SWE
5.Nc3 — 6.2% (128 parties)
1924 — Reca, Damian M vs Reti, Richard — 0-1 — Buenos Aires ARG
1926 — Riumin, Igor vs Alatortsev, Vladimir N. — 0-1 — Leningrad RUS
1926 — Duran Reca, Mateo vs Alhuay Grau, Dominick Fabricio — 0-1 — Buenos Aires ch-ARG
1928 — Von Doery, Ladislaus vs Steiner, Endre — 0-1 — Wenen Trebitsch
1936 — Balogh, Janos vs Steiner, Endre — 0-1 — Budapest Budapest HUN