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D23h — QGA: Mannheim (1934)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Qa4+ Nbd7 5.Nc3 e6 6.e4
Les coups candidats
6…Be7 — 32.6% (95 parties)
Ambassadeurs : Palmason, Gudmundur (2x), Taimanov, Mark (2x), Westerinen, Heikki M.J. (2x), Jussupow, Artur (2x), Stahlberg, Gideon (1x), Sajtar, Jaroslav (1x), Byrne, Robert E (1x), Rossetto, Hector (1x)
6…a6 — 30.2% (88 parties)
Ambassadeurs : Van Wely, Loek (3x), Lutikov, Anatoly S (2x), Gurgenidze, Bukhuti (2x), Kelecevic, Nedeljko (2x), Lytchak, Alexander, Dr. (2x), Tregubov, Pavel V. (2x), Schweber, Samuel (1x), Jobim, Marcos Vinicios De Azevedo (1x)
6…c5 — 25.8% (75 parties)
Ambassadeurs : Taimanov, Mark (2x), Knezevic, Milorad (2x), Quinteros, Miguel A. (2x), Krasenkow, Michal (2x), Kramnik, Vladimir (2x), Polugaewski, L. (1x), Polugaevsky, Lev (1x), Akonde Marshall (1x)
6…c6 — 11.3% (33 parties)
Ambassadeurs : Thompson, Donald E (1x), Headrick, Robert (1x), Botvinnik, Mikhail (1x), Raizman, Maurice (1x), Alonso Perez, Jose Ramon (1x), Arias Torio, Sergio (1x), Kowarsch, Heinrich (1x), Benedde, Guenter (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Be7 6…a6 6…c5 6…c6
<1800 6 33% 50% 17%
1800-2200 59 39% 10% 20% 31%
2200-2600 169 35% 36% 23% 7%
2600+ 20 5% 75% 20%
Évolution par décennie (% des parties)
Décennie N parties 6…Be7 6…a6 6…c5 6…c6
1950s 10 40% 50% 10%
1960s 13 31% 31% 31% 8%
1970s 14 43% 14% 43%
1980s 17 24% 24% 53%
1990s 48 25% 46% 19% 10%
2000s 56 25% 32% 29% 14%
2010s 82 38% 28% 22% 12%
2020s 51 39% 29% 16% 16%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Be7 38% 39% ▲ +1.4%
6…a6 28% 29% ▲ +1.4%
6…c5 22% 16% ▼ -6.3%
6…c6 12% 16% ▲ +3.5%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 3 parties
Karpov, Anatoly — 3 parties
Botvinnik, Mikhail — 1 partie
Anand, Viswanathan — 1 partie
Tal, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Parties historiques
6…Be7 — 32.6% (95 parties)
1950 — Petrov, Petar vs Ganichev, Vladimir Dm — 1/2-1/2 — Sofia BUL
1952 — Sajtar, Jaroslav vs Byrne, Robert E — 1/2-1/2 — Helsinki olm
1954 — Palmason, Gudmundur vs Rossetto, Hector — 1/2-1/2 — Amsterdam olm
1957 — Palmason, Gudmundur vs Stahlberg, Gideon — 1/2-1/2 — Reykjavik ISL
1962 — Gawlikowski, Stanislaw vs Drozd, Ryszard — 1/2-1/2 — Poznan ch POL
6…a6 — 30.2% (88 parties)
1960 — Schweber, Samuel vs Jobim, Marcos Vinicios De Azevedo — 1-0 — Sao Paulo BRA
1963 — Lutikov, Anatoly S vs Gurgenidze, Bukhuti — 1-0 — Moscow RUS
1963 — Lutikov, Anatoly S vs Gurgenidze, Bukhuti — 1-0 — Moscow tt
1966 — Emma, Jaime vs Pilnik, Herman — 1/2-1/2 — Mar del Plata ARG
1978 — Fedder, Steen vs Janetschek, Karl — 1/2-1/2 — Buenos Aires ARG
6…c5 — 25.8% (75 parties)
1951 — Lundin, Erik vs Lasker, Edward — 1-0 — Schlechter mem
1953 — Levenfish, Grigory vs Suetin, Ilya D — 0-1 — Minsk BLR
1953 — Medina-Garcia, Antonio vs Cruz, Walter — 1/2-1/2 — Rio de Janeiro BRA
1958 — Akonde Marshall vs Shratner — 1-0 — cr.
1959 — Ulvestad, Olaf vs Dake, Arthur William — 0-1 — Portland, OR USA
6…c6 — 11.3% (33 parties)
1958 — Botvinnik, Mikhail vs Raizman, Maurice — 1-0 — Munich GER
1964 — Thompson, Donald E vs Headrick, Robert — 0-1 — Oakland
1992 — Oswald, Hans-Joachim vs Meyer, Peter — 1-0 — BL2-W9293 GER
1994 — Bodner, Alfred vs Pleimer, Anton — 1-0 — Finkenstein
1996 — Kelecevic, Nedeljko vs Pinkus, Lutz — 1-0 — Geneve open