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D93d —
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3 c6 7.Qb3
Les coups candidats
7…Qa5 — 36.7% (326 parties)
Ambassadeurs : Uhlmann, Wolfgang (7x), Inkiov, Ventzislav (7x), Sajtar, Jaroslav (4x), Malich, Burkhard, Dr. (4x), Ghinda, Mihail-Viorel (4x), Beliavsky, Alexander G (4x), Ftacnik, Lubomir (4x), Kotov Lundqvist, Alex (3x)
7…dxc4 — 20.6% (183 parties)
Ambassadeurs : Reshevsky, Samuel (12x), Kashdan, Isaac (6x), Flohr, Salo (3x), Fine, Reuben (3x), Euwe, Max (3x), Nordstrom, Felix (3x), Pinkus, Albert (2x), Bogoljubow, Efim (2x)
7…e6 — 20.3% (180 parties)
Ambassadeurs : Stahlberg, Gideon (2x), Dunkelblum, Arthur (2x), Rodriguez, Roberto (2x), Henzner, Reiner (2x), Sitnik, Igor (2x), Khatenever, Feliks (2x), Romanovsky, Pjotr (1x), Rokhlin, Yakov G (1x)
7…b6 — 8.4% (75 parties)
Ambassadeurs : Fine, Reuben (2x), Bogoljubow, Efim (1x), Stoltz, Gosta (1x), Schwartzman, P. (1x), Raclauskiene E (1x), Elsas, Hansgeorg (1x), Schlage, Willi (1x), Moller, Baldur Helgi (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Qa5 7…dxc4 7…e6 7…b6
<1800 19 11% 21% 32% 32%
1800-2200 293 25% 19% 28% 11%
2200-2600 235 42% 18% 16% 6%
2600+ 1 100%
Évolution par décennie (% des parties)
Décennie N parties 7…Qa5 7…dxc4 7…e6 7…b6
1910s 2 100%
1930s 42 26% 29% 21% 14%
1940s 55 31% 47% 11% 5%
1950s 57 49% 19% 18% 4%
1960s 61 67% 18% 11%
1970s 61 74% 18% 3%
1980s 45 56% 16% 20% 2%
1990s 136 29% 18% 24% 12%
2000s 207 27% 20% 29% 12%
2010s 196 30% 18% 18% 10%
2020s 26 12% 19% 35% 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Qa5 30% 12% ▼ -18.1%
7…dxc4 18% 19% ▲ +1.4%
7…e6 18% 35% ▲ +16.2%
7…b6 10% 12% ▲ +1.3%
Joueurs célèbres
Champions du monde dans cette position
Euwe, Max — 4 parties
Alekhine, Alexander — 1 partie
Parties historiques
7…Qa5 — 36.7% (326 parties)
1912 — Leonhardt, Paul vs Cohn, Erich — 1-0 — Bad Pistyan CZE
1914 — Bogoljubow, Efim vs Carls, Carl — 1-0 — Mannheim GER
1934 — Veresov, Gavriil vs Alatortsev, Vladimir N. — 0-1 — Leningrad ch-URS
1934 — Veresov, Valentin vs Ragozin, Viacheslav — 1-0 — Tbilisi GEO
1935 — Zita, Frantisek vs Skalicka, Karel — 0-1 — Prague CZE
7…dxc4 — 20.6% (183 parties)
1932 — Dobias, Josef vs Burian, Andre — 1-0 — Prague CZE
1934 — Dake, Arthur William vs Denker, Arnold S — 1/2-1/2 — Chicago, IL USA
1935 — Tartakower, Savielly vs Frydman, Paulino — 1-0 — Lodz Lodz POL
1935 — Zita, Frantisek vs Opocensky, Karel — 1-0 — Praag Marshall jub
1936 — Bogoljubow, Efim vs Prins, Lodewijk — 1-0 — Zandvoort NED
7…e6 — 20.3% (180 parties)
1934 — Alatortsev, Vladimir N. vs Freiman, Sergey Nikolaevich — 1-0 — Leningrad ch-URS
1935 — Solin, Ilmari vs Alexander, Conol Hugh — 1/2-1/2 — Warszawa ol
1936 — Rudakovsky, Iosif vs Yudovich, Mikhail M — 1/2-1/2 — Moscow RUS
1936 — Rubinstein, Simon vs Lokvenc, Josef — 1-0 — Vienna AUT
1938 — Kotov Lundqvist, Alex vs Gothilf, Solomon Borisovich — 1/2-1/2 — Leningrad RUS
7…b6 — 8.4% (75 parties)
1935 — Bogoljubow, Efim vs Stoltz, Gosta — 1-0 — Nuerenberg GER
1936 — Moller, Baldur Helgi vs Havasi, Kornel — 1/2-1/2 — Munich GER
1936 — Saemisch, Friedrich vs Rellstab, Ludwig Sr — 1-0 — Berlin GER
1938 — Elsas, Hansgeorg vs Schlage, Willi — 1/2-1/2 — Krefeld GER
1938 — Fine, Reuben vs Morton, Harold — 1-0 — New York, NY USA