B73e - 8…O-O 9.Qd2 - Dragon, Classical, Richter Variation (1905)

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B73e — Dragon, Classical, Richter Variation (1905)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Qd2
Les coups candidats
9…Bd7 — 35.8% (1081 parties)
Ambassadeurs : Unzicker, Ferdinand, Dr. (6x), Guzzetti, Luigi Enrico (6x), Rapaka Samuel Paul (4x), Velimirovic, Dragoljub (4x), Berg, Emanuel (4x), Garcia, Eder Raimundo (4x), Mednis, Edmar J (3x), Sax, Gyula (3x)
9…Ng4 — 33.8% (1021 parties)
Ambassadeurs : Cladouras, Panagiotis (10x), Radulov, Ivan (10x), Unzicker, Ferdinand, Dr. (8x), Mednis, Edmar J (5x), Ljubojevic, Ljubomir (5x), Wood, Baruch (4x), Timman, Jan H (4x), Guzzetti, Luigi Enrico (4x)
9…d5 — 12.0% (364 parties)
Ambassadeurs : Gufeld, Eduard (10x), Aronin, Lev (5x), Unzicker, Ferdinand, Dr. (5x), Maroroa Jones, Gawain C B (5x), Geller, Efim P. (4x), Miles, Anthony J (3x), Perez Garcia, Rodney Oscar (3x), Rovner, Dmitry (2x)
9…Nxd4 — 5.8% (174 parties)
Ambassadeurs : Christensen, Esben (4x), Borge, Nikolaj (3x), Pasarelu, Dan-Gabriel (2x), Kokkila, Tero (2x), Olsson, Ake (1x), Skold, Kristian (1x), Groenegress, Wilfried (1x), Hantke, Rolf (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Bd7 9…Ng4 9…d5 9…Nxd4
<1800 328 41% 27% 5% 5%
1800-2200 1217 36% 35% 11% 5%
2200-2600 621 36% 37% 16% 7%
2600+ 26 38% 19% 27% 15%
Évolution par décennie (% des parties)
Décennie N parties 9…Bd7 9…Ng4 9…d5 9…Nxd4
1950s 130 22% 42% 23% 4%
1960s 112 21% 48% 18% 4%
1970s 98 20% 51% 17% 6%
1980s 144 18% 58% 11% 8%
1990s 589 40% 30% 13% 6%
2000s 934 37% 30% 10% 5%
2010s 845 39% 31% 11% 5%
2020s 169 41% 31% 11% 10%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Bd7 39% 41% ▲ +1.7%
9…Ng4 31% 31% +0.0%
9…d5 11% 11% ▼ -0.7%
9…Nxd4 5% 10% ▲ +4.6%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 1 partie
Carlsen, Magnus — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
9…Bd7 — 35.8% (1081 parties)
1950 — Ampaire Shivan Kaliri vs Rohlena V — 1-0 — ?
1950 — Unzicker, Ferdinand, Dr. vs Barda, Olaf — 1/2-1/2 — Travemuende
1950 — Schmid, Lothar vs Bogoljubow, Efim — 1/2-1/2 — Southsea ENG
1951 — Horowitz, Albert Israel vs Rapaka Samuel Paul — 1/2-1/2 — New York, NY USA
1951 — Koifman, Ilya I vs Dubinin, Peter — 0-1 — Sverdlovsk
9…Ng4 — 33.8% (1021 parties)
1950 — Unzicker, Ferdinand, Dr. vs Schmidt, Paul — 1-0 — Bad Pyrmont GER
1950 — Pechan, Z. vs Antos, Adam — 1/2-1/2 — Chocen
1950 — Stumpers, Louis vs Cortlever, Nico — 1-0 — NLD-ch Amsterdam NED
1951 — Bonch-Osmolovsky, Mikhail vs Ragozin, Viacheslav — 1-0 — Ch URS (1/2 final), Lvov UKR
1951 — Aronin, Lev vs Kopaev, Nikolay A — 1-0 — Lvov UKR
9…d5 — 12.0% (364 parties)
1950 — Kampman, Tijmen vs Borowski, Piotr — 0-1 — ?
1950 — Cherepkov, Alexander V vs Rovner, Dmitry — 0-1 — URS-ch sf Tartu
1950 — Geller, Efim P. vs Averbakh, Yuri L — 1/2-1/2 — Schiavno Zdroj
1950 — Unzicker, Ferdinand, Dr. vs Gilg, Karl — 1-0 — Munich GER
1950 — Molnar, Istvan vs Szilagyi, Gyorgy Laszlo — 0-1 — Budapest HUN
9…Nxd4 — 5.8% (174 parties)
1950 — Ampaire Shivan Kaliri vs Peteraj, Jan — 0-1 — ?
1952 — Puiggros, Guillermo vs Pinzon Solis, Felipe — 1-0 — Mar del Plata ARG
1953 — Mellberg, B. vs Petri, Bernd — 1-0 — Copenhagen DEN
1955 — Limbos, Paul vs Van Hoorde, Edouard — 0-1 — Merksem
1958 — Samuels, Henry Alexander vs Dickson, George — 1/2-1/2 — Leamington