A33i - 6…d5 - Symmetrical, Two Knights (1924)

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A33i — Symmetrical, Two Knights (1924)
1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.Ndb5 d5
Les coups candidats
7.Bf4 — 66.2% (411 parties)
Ambassadeurs : De Firmian, Nick (12x), Wojtkiewicz, Aleksander (7x), Andersson, Ulf (7x), Timman, Jan H (6x), Olafsson, Helgi (4x), Eng, Holger, Dr. (3x), Velimirovic, Dragoljub (3x), Korchnoi, Viktor (3x)
7.cxd5 — 32.7% (203 parties)
Ambassadeurs : Ebisch, Joachim (7x), Rogulj, Branko (3x), Bronstein, David I (2x), Geller, Efim P. (2x), Clares Huanca, Danner Saed (2x), Suba, Mihai (2x), Portisch, Lajos (2x), Windels, Luc (2x)
7.e4 — 0.8% (5 parties)
Ambassadeurs : Egorov, Vladimir (2x), Schubert, Volker (1x), Davis, Max E (1x), Chomicki, Henryk (1x), Degn, Bruci (1x), Savchenko, Boris (1x), Melkumyan, Hrant (1x), Varga, Zo (1x)
7.e3 — 0.2% (1 parties)
Ambassadeurs : Cerny, Martin (1x), Friml, Antonin (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Bf4 7.cxd5 7.e4 7.e3
<1800 13 54% 46% — —
1800-2200 126 54% 43% 2% —
2200-2600 370 70% 29% 0% 0%
2600+ 35 89% 9% 3% —
Évolution par décennie (% des parties)
Décennie N parties 7.Bf4 7.cxd5 7.e4 7.e3
1960s 6 50% 50% — —
1970s 14 43% 57% — —
1980s 78 79% 21% — —
1990s 124 76% 24% — —
2000s 189 61% 39% — 1%
2010s 170 65% 32% 2% —
2020s 40 52% 45% 2% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Bf4 65% 52% ▼ -12.2%
7.cxd5 32% 45% ▲ +12.6%
7.e4 2% 2% +0.1%
7.e3 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 3 parties
Tal, Mikhail — 2 parties
Kramnik, Vladimir — 1 partie
Parties historiques
7.Bf4 — 66.2% (411 parties)
1964 — Trifunovic, Petar vs Spassky, Boris V. — 1/2-1/2 — Belgrade SRB
1964 — Trifunovic, Petar vs Spassky, Boris Vasily — 1/2-1/2 — Belgrade SRB
1966 — Bak, Istvan vs Jansa, Vlastimil — 1-0 — Harrachov
1971 — Huebner, Robert vs Penrose, Jonathan — 1-0 — Cheltenham
1973 — Gheorghiu, Florin vs O'Kelly de Galway, Alberic — 1/2-1/2 — Malaga ESP
7.cxd5 — 32.7% (203 parties)
1964 — Bronstein, David I vs Geller, Efim P. — 1/2-1/2 — Zonal tournament
1964 — Bronstein, David I vs Geller, Efim P. — 1/2-1/2 — Moskou zt
1969 — Filep, Tibor vs Flesch, Jean-benoit — 0-1 — Budapest ch-HUN
1972 — Ungureanu, Emil vs Pekun, Cem — 1-0 — Sofia BUL
1972 — Rodriguez, Ruben vs Grumer, Eugene — 1-0 — Skopje MKD
7.e4 — 0.8% (5 parties)
2015 — Davis, Max E vs Chomicki, Henryk — 1-0 — ICCF
2016 — Savchenko, Boris vs Melkumyan, Hrant — 1-0 — Izmir TUR
2017 — Egorov, Vladimir vs Schubert, Volker — 0-1 — LSS
2017 — Egorov, Vladimir vs Degn, Bruci — 1/2-1/2 — LSS
2020 — Varga, Zo vs Bracker, Arne — 1/2-1/2 — Budapest HUN
7.e3 — 0.2% (1 parties)
2006 — Cerny, Martin vs Friml, Antonin — 0-1 — Czech Republic