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C66h — Closed Berlin Bernstein Variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 Be7 7.Bg5
Eval: [+0.17]
Les coups candidats
7…O-O — 44.9% (75 parties)
Ambassadeurs : Lasker, Emanuel (3x), Sterk, Karoly (2x), Schiffers, Emanuel (1x), Chigorin, Mikhail (1x), R D G Telkamp (1x), Yates, Frederic D (1x), Pavlov, Mircea-Sergiu-Aurelian (1x), Grigoriev, A. (1x)
7…exd4 — 35.3% (59 parties)
Ambassadeurs : Levenfish, Grigory (3x), Schelfhout, Willem (2x), Lasker, Emanuel (2x), Salwe, Georg (2x), Havasi, Kornel (2x), Wolf, Siegfried (2x), Sterk, Karoly (2x), Schlechter, Carl (2x)
7…h6 — 13.8% (23 parties)
Ambassadeurs : Kruegel, JP. (2x), Illa, Rolando (1x), Lasker, Emanuel (1x), Euwe, Max (1x), Meijer, Reurt Albertus Jaco (1x), Marchand, Michael (1x), Svensson, Sven (1x), Thole, Markus (1x)
7…a6 — 3.6% (6 parties)
Ambassadeurs : Simlova, Kveta (1x), Duskova, Katerina (1x), Eckermann, Klaus (1x), Nittschalk, Karl (1x), Meghara, Lylia (1x), Tiviane, Graca (1x), Grabara, Krzysztof (1x), Pauk, Jozef (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…O-O 7…exd4 7…h6 7…a6
<1800 10 70% 10% 20%
1800-2200 34 41% 29% 18% 3%
2200-2600 12 25% 58% 17%
Évolution par décennie (% des parties)
Décennie N parties 7…O-O 7…exd4 7…h6 7…a6
1880s 1 100%
1900s 7 14% 86%
1910s 22 18% 73% 9%
1920s 13 23% 69% 8%
1930s 2 50% 50%
1960s 1 100%
1970s 4 100%
1980s 5 60% 20% 20%
1990s 27 59% 19% 19%
2000s 61 52% 21% 20% 3%
2010s 21 57% 14% 10% 14%
2020s 3 67% 33%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…O-O 57% 67% ▲ +9.5%
7…exd4 14% 0% ▼ -14.3%
7…h6 10% 0% ▼ -9.5%
7…a6 14% 33% ▲ +19.0%
Joueurs célèbres
Champions du monde dans cette position
Lasker, Emanuel — 6 parties
Euwe, Max — 2 parties
Parties historiques
7…O-O — 44.9% (75 parties)
1880 — Schiffers, Emanuel vs Chigorin, Mikhail — 0-1 — St Petersburg RUS
1909 — Loewy, Leopold Jr vs Reti, Richard — 1-0 — Wenen Trebitsch
1910 — Morrison, John vs Lasker, Emanuel — 1-0 — Wenen wch-m
1910 — Schlechter, Carl vs Lasker, Emanuel — 1-0 — AUT Wien
1912 — Yates, Frederic D vs Sterk, Karoly — 0-1 — Bad Pistyan CZE
7…exd4 — 35.3% (59 parties)
1907 — Schallopp, Emil vs Cohn, Erich — 0-1 — Berlin GER
1908 — Prokes, Jaromir vs Vidmar Kunst, Enej — 0-1 — Prague CZE
1909 — Burn, Allan vs Speyer, Abraham — 1/2-1/2 — St Petersburg RUS
1909 — Lasker, Emanuel vs Salwe, Georg — 1-0 — St Petersburg RUS
1909 — Berndtsson, Karl vs Kostic, Boris — 1/2-1/2 — St Petersburg RUS
7…h6 — 13.8% (23 parties)
1910 — Illa, Rolando vs Lasker, Emanuel — 1/2-1/2 — Buenos Aires ARG
1916 — Marchand, Michael vs Svensson, Sven — 1-0 — Copenhagen DEN
1920 — Euwe, Max vs Meijer, Reurt Albertus Jaco — 1-0 — Nijmegen & Amsterdam
1986 — Thole, Markus vs Jensen, Camilla Hinge — 1-0 — Dubai UAE
1994 — Gassner Katrin vs Schmetzer Judith — 1-0 — NRW
7…a6 — 3.6% (6 parties)
2000 — Simlova, Kveta vs Duskova, Katerina — 1/2-1/2 — Czechia
2005 — Eckermann, Klaus vs Nittschalk, Karl — 1-0 — ?
2011 — Meghara, Lylia vs Tiviane, Graca — 1-0 — Maputo MOZ
2012 — Grabara, Krzysztof vs Pauk, Jozef — 1-0 — LSS
2017 — Molnar, Liza Dorottya vs Szilagyi, Laszlo — 1-0 — HUN