A38e — Symmetrical, Main Line (1947)
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O d6
Les coups candidats
7.d4 — 55.6% (1277 parties)
Ambassadeurs : Lerner, Konstantin Z (5x), Milutinovic, Stefana (5x), Petursson, Margeir (5x), Hartoch, Robert G (3x), Wallrabenstein, Udo (3x), Teske, Henrik (3x), Swiercz, Dariusz (3x), Le, Quang Liem (3x)
7.d3 — 21.0% (483 parties)
Ambassadeurs : Mohr, Georg (3x), Fekete, Albert (3x), Pontoni, M. (2x), Wachinger, Guenther (2x), Sandor, Christian, Dr. (2x), Maka, Marcin (2x), Friedman, Aviv (2x), Peleikis, Horst (2x)
7.a3 — 11.4% (263 parties)
Ambassadeurs : Etruk, Rein T (2x), Haag, Ervin (2x), Szmetan, Jorge (2x), Giaccio, Alfredo (2x), Skembris, Spyridon (2x), Kokeny, Norbert Adrian (2x), Hng, Mei-En Emmanuelle (2x), Kushnir, Alla (1x)
7.Rb1 — 4.0% (91 parties)
Ambassadeurs : Greer, Ken (2x), Koskinen, Henri (2x), Thorfinnsson, Bragi (2x), Muehlberg, Siegfried (1x), Rawlings, Tim (1x), Marest, Steren (1x), Ostermeyer, Peter, Dr. (1x), Wall, Alejandro (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.d4 7.d3 7.a3 7.Rb1
<1800 193 47% 29% 8% 4%
1800-2200 982 55% 21% 10% 5%
2200-2600 735 62% 16% 16% 2%
2600+ 32 78% 6% 9% 3%
Évolution par décennie (% des parties)
Décennie N parties 7.d4 7.d3 7.a3 7.Rb1
1950s 7 29% 14% 14% 14%
1960s 27 56% 15% 15% 4%
1970s 33 45% 24% 12% 6%
1980s 64 56% 17% 16% 6%
1990s 344 51% 29% 9% 3%
2000s 604 55% 22% 9% 4%
2010s 939 58% 19% 13% 4%
2020s 280 57% 18% 12% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.d4 58% 57% ▼ -0.8%
7.d3 19% 18% ▼ -1.3%
7.a3 13% 12% ▼ -1.0%
7.Rb1 4% 3% ▼ -0.6%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 2 parties
Carlsen, Magnus — 1 partie
Hou, Yifan — 1 partie
Parties historiques
7.d4 — 55.6% (1277 parties)
1955 — Somogyi, Istvan vs Hacsak, Istvan — 1-0 — Budapest HUN
1957 — Clarke, Peter vs Kolarov, Atanas S. — 1/2-1/2 — Wageningen NED
1961 — Bauza, Lorenzo vs Kalkstein, Rodolfo — 1-0 — Uruguay
1961 — Barda, Olaf vs Skold, Kristian — 0-1 — Kiel GER
1962 — Jakhin, Rashid vs Bannik, Anatolij — 1/2-1/2 — Minsk BLR
7.d3 — 21.0% (483 parties)
1951 — Alfred, Le Bron vs Milic, Borislav — 0-1 — Match FRG-YUG
1961 — Udovcic, Mijo vs Parma, Bruno — 0-1 — Bled SLO
1962 — Filipov, Filip vs Prakhov, Valentin Asenov — 0-1 — Sofia BUL
1964 — Grahn, Lennart vs Platzack Christer — 1/2-1/2 — ?
1968 — Ungnad, Rainer vs Kessler, Max — 1/2-1/2 — Saarbruecken
7.a3 — 11.4% (263 parties)
1957 — Golz, Werner vs Hartmann, Klaus — 1-0 — Soemmerda
1966 — Stein, Leonid vs Doroshkievich, Vladimir K — 1-0 — Tbilisi ch-URS
1967 — Kushnir, Alla vs Kozlova, Galina — 1/2-1/2 — Moscow RUS
1969 — Etruk, Rein T vs Haag, Ervin — 1/2-1/2 — Tallinn EST
1969 — Etruk, Rein T vs Haag, Ervin — 1/2-1/2 — Tallinn Tallinn EST
7.Rb1 — 4.0% (91 parties)
1958 — Muehlberg, Siegfried vs Rawlings, Tim — 1-0 — Varna BUL
1967 — Marest, Steren vs Ostermeyer, Peter, Dr. — 1/2-1/2 — Kiel GER
1972 — Petrosian, Arshak B vs Sabirova, Olga — 1-0 — Moscow RUS
1974 — Collins, Jay Thomas vs Gibson, John — 0-1 — ?
1984 — Kotronias, Vasilios vs Frias Apablaza, Victor — 1-0 — Athens GRE