D33e - 7.Bg2 - QGD Tarrasch: Swedish (1909)

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D33e — QGD Tarrasch: Swedish (1909)
1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 c4 7.Bg2
Les coups candidats
7…Bb4 — 94.7% (874 parties)
Ambassadeurs : Zhukova, Natalia (17x), Gamback, Bjorn (13x), Hartung-Nielsen, Jens (11x), Moskalenko, Viktor (9x), Baumbach, Friedrich, Dr. (8x), Bronstein, David I (7x), Rodriguez, Odysseus (7x), Bazant, Petr (7x)
7…Nf6 — 4.4% (41 parties)
Ambassadeurs : Oliver, Shannon (2x), Kilian, Ralf (2x), Micanek, Tomas (2x), Kluger, Gyula (1x), Koberl, Ferenc (1x), Primel, Dominique (1x), Pinsard, Thierry (1x), Avirup Santra (1x)
7…Be6 — 0.4% (4 parties)
Ambassadeurs : Aguilar, Pompeyo (1x), Saucedo Miranda, Ivan Manuel (1x), Galasso, Daniele Francesco (1x), Carnac, Vincent (1x), Onasch, Gunnar (1x), Fleischer, Martin (1x), Uphoff, Lennart (1x), Blodig, Martin (1x)
7…Be7 — 0.3% (3 parties)
Ambassadeurs : Kleiser, Gregor (1x), Gruszka, Herbert (1x), Petruzzelli, Raffaele (1x), Struzka, Vlastimil (1x), Opperman, Ron (1x), Haag, Bengt (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Bb4 7…Nf6 7…Be6 7…Be7
<1800 27 70% 22% 4% 4%
1800-2200 283 90% 9% 1% 1%
2200-2600 452 99% 1% — —
2600+ 4 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 7…Bb4 7…Nf6 7…Be6 7…Be7
1950s 42 98% 2% — —
1960s 19 100% — — —
1970s 29 93% 3% 3% —
1980s 82 98% 2% — —
1990s 280 99% 0% 1% —
2000s 259 95% 5% — 0%
2010s 175 89% 9% 1% 1%
2020s 37 81% 19% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Bb4 89% 81% ▼ -7.5%
7…Nf6 9% 19% ▲ +9.8%
7…Be6 1% 0% ▼ -0.6%
7…Be7 1% 0% ▼ -1.1%
Parties historiques
7…Bb4 — 94.7% (874 parties)
1950 — Bosch van Rosenthal, Edzard vs Stahlberg, Gideon — 0-1 — Amsterdam NED
1950 — Miguel, Nahuel vs Stoltz, Gösta — 1-0 — Bled SLO
1950 — Efimov, Kondrat vs Taimanov, Mark — 1-0 — USSR
1950 — Beni, Alfred vs Michel, Paul — 1-0 — Vienna AUT
1950 — Vajda, Arpad vs Bely, Miklos — 1/2-1/2 — Budapest HUN
7…Nf6 — 4.4% (41 parties)
1951 — Kluger, Gyula vs Koberl, Ferenc — 1/2-1/2 — Hungary ch
1977 — Avirup Santra vs Cavallari, Eric — 1/2-1/2 — ITA ch corr
1983 — Muir, Andrew J vs Saeed Abdulla Alkindi — 1-0 — USA Chicago WchTu26
1985 — Primel, Dominique vs Pinsard, Thierry — 1/2-1/2 — Dinard
1994 — Weber, Baldur vs Seidel, Juergen — 0-1 — Doernighei ch-Hessen qual
7…Be6 — 0.4% (4 parties)
1971 — Aguilar, Pompeyo vs Saucedo Miranda, Ivan Manuel — 1-0 — Guatemala City GUA
1994 — Onasch, Gunnar vs Fleischer, Martin — 1-0 — Burg Stargard
1998 — Galasso, Daniele Francesco vs Carnac, Vincent — 1-0 — Sweden
2017 — Uphoff, Lennart vs Blodig, Martin — 1-0 — Windischeschenbach
7…Be7 — 0.3% (3 parties)
2003 — Kleiser, Gregor vs Gruszka, Herbert — 1-0 — Vienna AUT
2015 — Petruzzelli, Raffaele vs Struzka, Vlastimil — 1/2-1/2 — ICCF
2019 — Opperman, Ron vs Haag, Bengt — 1/2-1/2 — ICCF