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D34b — QGD Tarrasch (1908)
1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O Be6
Les coups candidats
9.dxc5 — 37.9% (258 parties)
Ambassadeurs : Michel, Clement Paul (2x), Rellstab, Ludwig (2x), Pavlenko, Oleg (2x), Pomar Salamanca, Arturo (2x), Filip, Miroslav (1x), Unzicker, Ferdinand, Dr. (1x), Gligoric, Svetozar (1x), Stahlberg, Gideon (1x)
9.Bg5 — 27.8% (189 parties)
Ambassadeurs : Welling, Gerard (2x), Marusenko, Petr (2x), Bolbochan, Jacobo (1x), Schneider, Lars-Ake (1x), Pietzsch, Wolfgang (1x), Troeger, Rainer (1x), Piro, Valerio (1x), Incutto, Carlos (1x)
9.b3 — 14.9% (101 parties)
Ambassadeurs : Blanco Fernandez, Alvaro (3x), Simagin, Vladimir (1x), Bondarevsky, Igor (1x), Bilo, Heinz (1x), Soelter, Reinhold (1x), Manouck, Thierry (1x), Herb, Pascal (1x), Lacko, Pavel (1x)
9.Bf4 — 6.5% (44 parties)
Ambassadeurs : Schweber, Samuel (1x), Luna, Julio (1x), Roth, Rolf (1x), Isaacson, David (1x), Schwartzman, Gabriel (1x), Bauer, Jachym (1x), Rehorek, Radomir (1x), Nemes, Gyorgy (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9.dxc5 9.Bg5 9.b3 9.Bf4
<1800 61 34% 33% 7% 10%
1800-2200 359 39% 26% 14% 6%
2200-2600 163 40% 31% 20% 2%
2600+ 2 50% — 50% —
Évolution par décennie (% des parties)
Décennie N parties 9.dxc5 9.Bg5 9.b3 9.Bf4
1950s 15 60% 20% 7% —
1960s 13 69% 8% — 15%
1970s 15 27% 33% 20% —
1980s 22 36% 18% 27% 14%
1990s 105 30% 34% 15% 7%
2000s 182 31% 32% 18% 7%
2010s 255 41% 29% 13% 4%
2020s 73 51% 11% 12% 15%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.dxc5 41% 51% ▲ +9.9%
9.Bg5 29% 11% ▼ -17.7%
9.b3 13% 12% ▼ -0.6%
9.Bf4 4% 15% ▲ +11.5%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 1 partie
Lasker, Emanuel — 1 partie
Parties historiques
9.dxc5 — 37.9% (258 parties)
1950 — Gligoric, Svetozar vs Michel, Clement Paul — 1/2-1/2 — Mar del Plata ARG
1951 — Lasker, Edward vs Michel, Paul — 0-1 — Vienna AUT
1951 — Lasker, Emanuel vs Michel, Clement Paul — 0-1 — Vienna AUT
1951 — Alice, Millena Miguelina de Souza vs Rellstab, Ludwig — 1/2-1/2 — Reggio Emilia ITA
1953 — Jacobsen, Arenth vs Schou, K B — 0-1 — Copenhagen DEN
9.Bg5 — 27.8% (189 parties)
1952 — Piro, Valerio vs Incutto, Carlos — 0-1 — Buenos Aires ARG
1956 — Bolbochan, Jacobo vs Schneider, Lars-Ake — 1-0 — Moskou olm
1957 — Pietzsch, Wolfgang vs Troeger, Rainer — 1-0 — Zittau
1964 — Viner, Phillip vs Lopez Munoz, Johan Schneider — 1-0 — Tel Aviv ISR
1972 — Cobo Arteaga, Eldis vs Simon, Roger — 1-0 — Skopje MKD
9.b3 — 14.9% (101 parties)
1951 — Simagin, Vladimir vs Bondarevsky, Igor — 1/2-1/2 — Moskou ch-URS
1972 — Jansa, Vlastimil vs Beliavsky, Alexander G — 1/2-1/2 — Sombor
1973 — Bilo, Heinz vs Soelter, Reinhold — 1/2-1/2 — Oelde
1979 — Spiridonov, Nikola vs Mardarowicz, Jacek — 0-1 — Naleczow
1980 — Manouck, Thierry vs Herb, Pascal — 1/2-1/2 — Puteaux
9.Bf4 — 6.5% (44 parties)
1964 — Roth, Rolf vs Isaacson, David — 1/2-1/2 — Tel Aviv olm prel
1965 — Schweber, Samuel vs Luna, Julio — 1-0 — Buenos Aires ch-ARG
1986 — Flear, Christine vs Geneciran, Glenda — 1-0 — Dubai UAE
1988 — Schwartzman, Gabriel vs Bauer, Jachym — 1-0 — Hallein
1988 — Rehorek, Radomir vs Nemes, Gyorgy — 1-0 — Zalaegerszeg