E02c — Open
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7
Eval: [+0.29]
Les coups candidats
Ambassadeurs : Gebhardt, Ulrich, Dr. (12x), Galjé, Hans (10x), Tyleek, Drahomír (8x), Jenneborg, Seved (8x), Smyslov, Vladimir (7x), Gromov, Sergey Vasilievich (6x), Kreuchauf, Olaf (6x), Reede, Arvo (6x)
Ambassadeurs : Nogueiras Santiago, Jesus (4x), Alekhine, Alexander (3x), Flohr, Salo (3x), Geller, Efim P. (3x), Unzicker, Wolfgang (3x), Sokolov, Andrei (3x), Keres, Paul Petrovich (2x), Szabo, Laszlo (2x)
6.Nd2 — 11.8% (103 parties)
Ambassadeurs : Carleson, Caspar (5x), Hulak, Krunoslav (4x), Petrov, Vladimirs (3x), Adamski, Jan (3x), Razuvaev, Yuri S (3x), Keller, Rudolf (2x), Petrov, Vladimir S. (2x), Makogonov, Vladimir (2x)
6.Nc3 — 3.3% (29 parties)
Ambassadeurs : Ilincic, Zlatko (2x), Lindley, Jeff (1x), Purtdy (1x), Flohr, Salo (1x), Fairhurst, William (1x), Keres, Paul (1x), Bondarevsky, Igor (1x), Preinfalk, Anton (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.Qxc4 6.Nf3 6.Nd2 6.Nc3
<1800 16 81% 6% 12%
1800-2200 164 68% 29% 1% 2%
2200-2600 395 54% 28% 13% 4%
2600+ 36 81% 8% 8%
Évolution par décennie (% des parties)
Décennie N parties 6.Qxc4 6.Nf3 6.Nd2 6.Nc3
1930s 14 7% 50% 29% 14%
1940s 42 33% 24% 38% 5%
1950s 62 58% 26% 13% 3%
1960s 22 27% 36% 27% 9%
1970s 37 54% 22% 24%
1980s 81 36% 26% 36% 2%
1990s 90 53% 27% 17% 2%
2000s 159 52% 38% 8% 3%
2010s 185 63% 29% 2% 5%
2020s 179 84% 12% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.Qxc4 63% 84% ▲ +21.7%
6.Nf3 29% 12% ▼ -16.4%
6.Nd2 2% 0% ▼ -2.2%
6.Nc3 5% 2% ▼ -3.7%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 10 parties
Euwe, Max — 4 parties
Alekhine, Alexander — 3 parties
Kramnik, Vladimir — 2 parties
Anand, Viswanathan — 2 parties
Botvinnik, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Karpov, Aleksandr — 1 partie
Ding, Liren — 1 partie
Carlsen, Magnus — 1 partie
Gukesh D — 1 partie
Parties historiques
6.Qxc4 — 57.7% (503 parties)
1937 — Flohr, Salo vs Reshevsky, Samuel — 1/2-1/2 — Hastings ENG
1941 — Caetano Netto, Joaquim Gentil vs Eliskases, Erich — 0-1 — Sao Paulo BRA
1943 — Opocensky, Karel vs Pachman, Ludek — 0-1 — Prague CZE
1943 — Marques Oliveira Oswaldo vs De Souza Mendes, Joao — 0-1 — Teresopolis
1945 — Rudolf Pruun vs Keres, Paul — 0-1 — Tallinn (URS)
6.Nf3 — 26.3% (229 parties)
1930 — Opocensky, Karel vs Flohr, Salo — 0-1 — Prague predolymp
1937 — Flohr, Salo vs Fine, Reuben — 1/2-1/2 — Kemeri LAT
1937 — Becker, Albert vs Podhorzer, David — 0-1 — Vienna AUT
1937 — Alekhine, Alexander vs Euwe, Max — 1/2-1/2 — Rotterdam wch-m
1938 — Petrov, Vladimir (ENG) vs Alekhine, Alexander — 1-0 — Margate ENG
6.Nd2 — 11.8% (103 parties)
1938 — Flohr, Salo vs Euwe, Max — 1/2-1/2 — Amsterdam NED
1939 — Tolush, Alexander vs Makogonov, Vladimir — 1/2-1/2 — Leningrad ch-URS
1939 — Petrov, Vladimir (ENG) vs Van Scheltinga, Theo — 1/2-1/2 — Buenos Aires ARG
1939 — Flohr, Salo vs Petrov, Vladimir S. — 1-0 — It, Kemeri LAT
1940 — Petrov, Vladimirs vs Makogonov, Vladimir — 1-0 — Moskou ch-URS
6.Nc3 — 3.3% (29 parties)
1937 — Flohr, Salo vs Fairhurst, William — 1-0 — Hastings ENG
1938 — Lindley, Jeff vs Purtdy — 0-1 — cr.
1941 — Keres, Paul vs Bondarevsky, Igor — 1-0 — URS-ch
1945 — Preinfalk, Anton vs Gligoric, Svetozar — 1/2-1/2 — Ljubljana SLO
1951 — Shamkovich, Leonid vs Zhukhovitsky, Samuel — 1-0 — Baku AZE