E07h — Closed
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Nc3 dxc4
Les coups candidats
8.e4 — 74.1% (427 parties)
Ambassadeurs : Ragozin, Viacheslav (4x), Bogoljubow, Efim (3x), Pigusov, Evgeny (3x), Marszalek, Maciej (3x), Miton, Kamil (3x), Elstner, Rudolf (2x), Richter, Kurt P (2x), Rudakovsky, Iosif (2x)
8.a4 — 11.6% (67 parties)
Ambassadeurs : Nei, Iivo (2x), Zakhartsov, Vladimir (2x), Fine, Reuben (1x), Shainswit, George (1x), Van Scheltinga, Theo (1x), Patt Rubinstein, Jacobo (1x), Burgalat, Francisco J (1x), Klaschus, R. (1x)
8.Qc2 — 8.5% (49 parties)
Ambassadeurs : Sunye Neto, Jaime (2x), Ravinsky, Grigory (1x), Veresov, Gavriil (1x), Maderna, Carlos (1x), Corte, Cesar J (1x), Tolush, Alexander (1x), Goldenov, Boris P (1x), Iliesco, Juan (1x)
8.e3 — 1.2% (7 parties)
Ambassadeurs : Schlinkert, Karl (1x), Hampel, Johannes (1x), Reich, Thomas (1x), Westermeier, Arnulf (1x), Santamarta Dominguez, Fernando (1x), Herrera Gonzalez, Javier (1x), Gehrmann, Rudolf-Rainer (1x), Badestein, Hartmut, Prof. Dr. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.e4 8.a4 8.Qc2 8.e3
<1800 12 67% 25%
1800-2200 175 68% 11% 11% 3%
2200-2600 256 81% 11% 4% 1%
2600+ 19 47% 47% 5%
Évolution par décennie (% des parties)
Décennie N parties 8.e4 8.a4 8.Qc2 8.e3
1930s 7 86% 14%
1940s 12 67% 8% 25%
1950s 6 50% 17% 33%
1960s 12 92% 8%
1970s 27 81% 11% 7%
1980s 40 70% 8% 22%
1990s 92 84% 9% 4%
2000s 120 82% 5% 4% 2%
2010s 186 72% 10% 10% 2%
2020s 74 53% 34% 5% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.e4 72% 53% ▼ -19.3%
8.a4 10% 34% ▲ +23.6%
8.Qc2 10% 5% ▼ -4.8%
8.e3 2% 1% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 1 partie
Lasker, Emanuel — 1 partie
Karpov, Anatoly — 1 partie
Anand, Viswanathan — 1 partie
Kramnik, Vladimir — 1 partie
Gukesh D — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
8.e4 — 74.1% (427 parties)
1936 — Ragozin, Viacheslav vs Levenfish, Grigory — 1/2-1/2 — Leningrad RUS
1936 — Botvinnik, Mikhail vs Lasker, Emanuel — 1-0 — Moscow RUS
1936 — Menchik, Vera Frantsevna vs Pirc, Vasja — 0-1 — Podebrady CZE
1936 — Ragozin, Viacheslav vs Budo Mayol, Albert — 1-0 — Leningrad RUS
1937 — Keres, Paul Petrovich vs Dunkelblum, Arthur — 1-0 — Stockholm SWE
8.a4 — 11.6% (67 parties)
1942 — Fine, Reuben vs Shainswit, George — 1-0 — New York USA speed ch (10-sec/move), USA
1952 — Patt Rubinstein, Jacobo vs Burgalat, Francisco J — 1-0 — Buenos Aires ARG
1964 — Nei, Iivo vs Van Scheltinga, Theo — 1-0 — Beverwijk NED
1971 — Braun, Gottfried, Dr. vs Neukirch, Detlef — 1-0 — DDR-ch 20th Strausberg
1975 — Gereben, Erno vs Jovanovic, Nenad — 1/2-1/2 — Mladenovac
8.Qc2 — 8.5% (49 parties)
1938 — Maderna, Carlos vs Corte, Cesar J — 0-1 — Buenos Aires ARG
1944 — Ravinsky, Grigory vs Veresov, Gavriil — 1/2-1/2 — Moskou ch-URS
1944 — Iliesco, Juan vs Guimard, Carlos E — 0-1 — Mar del Plata ARG
1947 — Tolush, Alexander vs Goldenov, Boris P — 1/2-1/2 — Leningrad ch-URS
1953 — Bolbochan, Julio vs Letelier Rene — 1/2-1/2 — Mar del Plata ARG
8.e3 — 1.2% (7 parties)
2003 — Reich, Thomas vs Westermeier, Arnulf — 1-0 — Baden-Baden GER
2004 — Schlinkert, Karl vs Hampel, Johannes — 1/2-1/2 — Templin
2007 — Santamarta Dominguez, Fernando vs Herrera Gonzalez, Javier — 1-0 — Aviles ESP
2012 — Gehrmann, Rudolf-Rainer vs Badestein, Hartmut, Prof. Dr. — 0-1 — Berlin GER
2015 — Mahn, Franko vs Keusch, Horst — 0-1 — Berlin GER