A57m —
1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.e3
Les coups candidats
Ambassadeurs : Farago, Ivan (28x), Bellon Lopez, Juan Manuel (18x), Lukacs, Peter (15x), Zimmerman, Yuri (12x), Fedorowicz, John (12x), Hebden, Mark L (10x), Flear, Glenn C (10x), Van Riemsdijk, Herman C. (10x)
5…axb5 — 30.4% (1765 parties)
Ambassadeurs : Farago, Ivan (21x), Portisch, Ferenc (12x), Lacrosse, Marc (10x), Lukacs, Peter (9x), Bukal, Vladimir Jr. (9x), Menyhart, Tibor (8x), Ruban, Vadim (7x), Shapiro, Daniel (7x)
5…Bb7 — 11.7% (679 parties)
Ambassadeurs : Farago, Ivan (13x), Alburt, Lev (5x), Komljenovic, Davorin (5x), Andruet, Gilles (4x), Fedorowicz, John (4x), Polgar, Judit (4x), Polgar, Sofia (4x), Dambacher, Martijn (4x)
5…e6 — 7.1% (414 parties)
Ambassadeurs : Zimmerman, Yuri (4x), Kuntz, Pierre (4x), Szieberth, Adam (4x), Kranzl, Peter (4x), Sliwicka, Alicja (4x), Socko, Monika (4x), Batsiashvili, Nino (4x), Knaak, Rainer (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…g6 5…axb5 5…Bb7 5…e6
<1800 140 44% 31% 9% 6%
1800-2200 1690 40% 33% 10% 6%
2200-2600 2595 43% 30% 13% 9%
2600+ 54 30% 37% 26% 7%
Évolution par décennie (% des parties)
Décennie N parties 5…g6 5…axb5 5…Bb7 5…e6
1940s 1 100%
1950s 2 50% 50%
1960s 14 71% 14%
1970s 208 62% 15% 1% 8%
1980s 793 47% 23% 17% 7%
1990s 1555 44% 32% 14% 5%
2000s 1167 41% 36% 9% 3%
2010s 1351 40% 32% 13% 7%
2020s 716 40% 28% 7% 18%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…g6 40% 40% +0.0%
5…axb5 32% 28% ▼ -4.1%
5…Bb7 13% 7% ▼ -5.7%
5…e6 7% 18% ▲ +10.9%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 7 parties
Karpov, Anatoly — 1 partie
Kasparov, Garry — 1 partie
Parties historiques
5…g6 — 43.0% (2498 parties)
1958 — Bech Johansson, Amadeus vs Martens, Rolf — 0-1 — Sweden
1960 — Alfonso Sales, Ricardo vs Martens, Rolf — 1-0 — Leningrad RUS
1967 — Zilberberg, Alik vs Pokrovsky, N.V — 1-0 — USSR ch-08 6768
1967 — Reefschlaeger, Helmut, Dr. vs Van Seters, Frits — 1-0 — Detmold GER
1968 — Kaufman, Lawrence vs Benko, Pal — 0-1 — Aspen
5…axb5 — 30.4% (1765 parties)
1949 — Moller, Thomas Knakkergaard vs Korning, Peter — 1/2-1/2 — ?
1957 — From, Sigfred vs Haahr, Thorkild — 1/2-1/2 — Denmark ch corr
1971 — Grigoryan, Karen A. vs Fedorov Kozlov, Andrei — 1-0 — Alma Ata KAZ
1972 — Brinck-Claussen, Bjorn vs Petersen, Finn — 1/2-1/2 — Albertslund DEN
1972 — Fedder, Steen vs Hamann, Svend — 1-0 — Copenhagen DEN
5…Bb7 — 11.7% (679 parties)
1972 — Fedder, Steen vs Petersen, Finn — 1-0 — Frederiksberg
1977 — Knezevic, Milorad vs Dimitrijevic, Milorad — 1-0 — Kragujevac SRB
1982 — Krupei, R. vs Sklavounos, Panayotis — 0-1 — Piraeus
1983 — Saralegui, Mario vs Bermudez Lamas, Pablo — 1/2-1/2 — Uruguay
1984 — Hansen, Curt vs Andersen, Finn Munk — 1/2-1/2 — corr ch-DEN
5…e6 — 7.1% (414 parties)
1967 — Soelch, Helmut vs Neis, Christian — 1-0 — Hochspeyer
1967 — Martens, Martin vs Rajkovic, Aleksandar — 1-0 — Harrachov
1970 — Sedoev, Nikolay vs Biriescu, Ioan — 1-0 — Varna BUL
1971 — Efimov, Ignat vs Pokrovsky, Anatoliy — 0-1 — USSR
1972 — Saidy, Anthony vs Dunning, John — 1-0 — US Open