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A39h — Symmetrical, Main Line 7.d4 (1929)
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4 cxd4 8.Nxd4 Ng4
Les coups candidats
9.e3 — 86.0% (1658 parties)
Ambassadeurs : Szalanczi, Emil (31x), Hegeler, Frank (12x), Holzke, Frank (11x), Madl, Ildiko (9x), Leko, Peter (8x), Horvath, Jozsef (8x), Loginov, Valery A (6x), Tolnai, Tibor (6x)
9.Nxc6 — 6.2% (120 parties)
Ambassadeurs : Madl, Ildiko (3x), Fazekas, Stephan (2x), Hallmark, AM. (1x), Hallmark (1x), Rivera, Donato (1x), Brasket, Curt J (1x), Ottati Sanchez, Alberto Andrey (1x), Anderson, Frank Ross (1x)
9.Nc2 — 4.5% (87 parties)
Ambassadeurs : Urday, Henry (2x), Rowland, Anthony (2x), Jauregui, Carlos (1x), Schroeder, Ruperto (1x), Arnold, Dietmar (1x), Malich, Burkhard, Dr. (1x), Karlsson, Lars 1937 (1x), Svensson, Conny (1x)
9.Nb3 — 2.6% (50 parties)
Ambassadeurs : Horvath, Jozsef (2x), Portisch, Lajos (1x), Dely, Peter (1x), Knudsen, Per (1x), Carlsson, Gerner (1x), Gutman, Lev (1x), Petrushin, Alexander I (1x), Arroyo Zarate, Andre Richard River (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9.e3 9.Nxc6 9.Nc2 9.Nb3
<1800 49 76% 10% 4% 8%
1800-2200 594 81% 10% 5% 2%
2200-2600 1119 90% 3% 4% 2%
2600+ 24 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 9.e3 9.Nxc6 9.Nc2 9.Nb3
1950s 13 69% 23% 8% —
1960s 23 83% 9% 4% 4%
1970s 14 64% 7% 7% 21%
1980s 124 84% 4% 5% 7%
1990s 549 86% 6% 5% 2%
2000s 505 86% 7% 5% 2%
2010s 604 87% 6% 4% 2%
2020s 95 91% 4% 2% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.e3 87% 91% ▲ +3.6%
9.Nxc6 6% 4% ▼ -2.1%
9.Nc2 4% 2% ▼ -1.7%
9.Nb3 2% 2% -0.2%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 3 parties
Anand, Viswanathan — 1 partie
Kasparov, Garry — 1 partie
Botvinnik, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
9.e3 — 86.0% (1658 parties)
1953 — Larsen, Bent vs Jacobsen, Arenth — 1-0 — Copenhagen DEN
1954 — Polugaevsky, Lev vs Lipnitsky, Isaac — 1-0 — Riga LAT
1955 — Lombardy, William J vs Pinkus, Albert — 0-1 — New York, NY USA
1955 — Smyslov, Vasily vs Milic, Borislav — 1-0 — Zagreb CRO
1956 — Larsen, Bent vs Myhre, Erling — 1-0 — Oslo DK
9.Nxc6 — 6.2% (120 parties)
1959 — Hallmark, AM. vs Fazekas, Stephan — 1-0 — York ch-BCF
1959 — Hallmark vs Fazekas, Stephan — 1-0 — ENG
1959 — Rivera, Donato vs Brasket, Curt J — 1/2-1/2 — Omaha
1964 — Ottati Sanchez, Alberto Andrey vs Anderson, Frank Ross — 1/2-1/2 — Tel Aviv ISR
1965 — Damjanovic, Marko vs Honfi, Karoly — 1/2-1/2 — Hamburg etc
9.Nc2 — 4.5% (87 parties)
1954 — Arnold, Dietmar vs Malich, Burkhard, Dr. — 0-1 — Schkopau
1961 — Jauregui, Carlos vs Schroeder, Ruperto — 1-0 — Santiago de Chile
1978 — Karlsson, Lars 1937 vs Svensson, Conny — 0-1 — corr SWE/K tt
1982 — Grathwohl, Roland vs Biebinger, Gerhard — 0-1 — Kirchheim
1982 — Wernik, R vs Izquierdo, Daniel — 1-0 — Brasilero op
9.Nb3 — 2.6% (50 parties)
1961 — Portisch, Lajos vs Dely, Peter — 1-0 — Budapest ch-HUN
1977 — Gutman, Lev vs Petrushin, Alexander I — 1-0 — Beltsy
1978 — Knudsen, Per vs Carlsson, Gerner — 0-1 — Horsens
1978 — Ball, Stephen vs Campbell, Gordon — 1-0 — Edmonton
1980 — Priol Ramiere, Sullivan vs Cafferty, Bernard — 0-1 — Bristol ENG