B62f - 7.Qd3 - Richter-Rauzer Variation (1949)

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B62f — Richter-Rauzer Variation (1949)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd3
Les coups candidats
Ambassadeurs : Tolnai, Tibor (18x), Zelcic, Robert (7x), Grabics, Monika (6x), Horvath, Adam (5x), Grabarczyk, Bogdan (5x), Ivkov, Borislav (4x), Taimanov, Mark (4x), Rajna, George (4x)
7…Be7 — 28.7% (407 parties)
Ambassadeurs : Grabarczyk, Bogdan (5x), Tolnai, Tibor (4x), Yurtaev, Leonid (4x), Nevednichy, Vladislav (4x), Kotsur, Pavel (3x), Thorhallsson, Throstur (3x), Burri, Quentin (3x), Wu, Rochelle (3x)
7…Bd7 — 28.0% (398 parties)
Ambassadeurs : Gan-Erdene, Sugar (7x), Kacharava, Nikolozi (5x), Fier, Alexandr (5x), Harsha Bharathakoti (5x), Flores Quillas, Diego Saul Rodri (4x), Chen, Ryo (4x), Maghsoodloo, Parham (4x), Bhagat Kush (4x)
7…Qb6 — 2.4% (34 parties)
Ambassadeurs : Perpinya Rofes, Lluis Maria (2x), Lubbe, Melanie (2x), Kozul, Zdenko (2x), Grabics, Monika (1x), Csaba, Arpad Dr. (1x), Smirin, Ilia (1x), Avrukh, Boris (1x), Jelica, Mara (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…a6 7…Be7 7…Bd7 7…Qb6
<1800 42 36% 50% 14% —
1800-2200 389 43% 30% 22% 2%
2200-2600 873 38% 26% 33% 3%
2600+ 31 13% 16% 61% 6%
Évolution par décennie (% des parties)
Décennie N parties 7…a6 7…Be7 7…Bd7 7…Qb6
1950s 48 56% 42% 2% —
1960s 15 60% 33% 7% —
1970s 24 79% 17% 4% —
1980s 40 60% 38% 2% —
1990s 119 67% 29% — 1%
2000s 127 57% 36% — 5%
2010s 213 54% 34% 8% 2%
2020s 833 25% 25% 45% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…a6 54% 25% ▼ -29.5%
7…Be7 34% 25% ▼ -8.5%
7…Bd7 8% 45% ▲ +37.3%
7…Qb6 2% 3% ▲ +0.9%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 1 partie
Parties historiques
7…a6 — 39.2% (556 parties)
1950 — Balogh, Janos vs Napolitano, Matteo — 0-1 — corr Wch1
1950 — Keres, Paul vs Stahlberg, Gideon — 1/2-1/2 — Budapest HUN
1952 — Platz, Hans vs Szily, Jozsef — 1-0 — Helsinki olm
1952 — Klavins, Janis vs Koblencs, Alexander — 0-1 — Riga LAT
1952 — Khasin, Abram vs Poliak, Evsey — 1-0 — Kiev ch
7…Be7 — 28.7% (407 parties)
1950 — Keres, Paul vs Boleslavsky, Isaac — 1-0 — Moskou ch-URS
1950 — Keres, Paul Petrovich vs Boleslavsky, Isaac — 1-0 — Ch URS Moscow RUS
1950 — Alexander Tadala vs Geller, Efim P. — 0-1 — Moskou ch-URS
1951 — Aberbach, Angel vs Fridshtein, G.S. — 1-0 — Corrs. -
1951 — Keres, Paul vs Aronin, Lev — 1-0 — Moskou ch-URS
7…Bd7 — 28.0% (398 parties)
1956 — Bely, Miklos vs Pytlakowski, Andrzej — 1/2-1/2 — POL-HUN Warsaw POL
1969 — Winiwarter, Felix vs Auer, Martin — 1-0 — Austria
1975 — Botto, Dardo vs Mundell, Peter — 0-1 — Buenos Aires ARG
1984 — Zagorovsky, Vladimir vs Napolitano, Dr Mario — 1-0 — Scottish Centenary
2012 — Swiercz, Dariusz vs Korobov, Dmitry A. — 1-0 — Czech Republic CZE
7…Qb6 — 2.4% (34 parties)
1997 — Grabics, Monika vs Csaba, Arpad Dr. — 1-0 — HUN
2000 — Smirin, Ilia vs Avrukh, Boris — 1/2-1/2 — Ramat Aviv ISR
2005 — Perpinya Rofes, Lluis Maria vs Parligras, Mircea-Emilian — 0-1 — Barcelona ESP
2008 — Jelica, Mara vs Maisuradze, Nino — 0-1 — Rijeka CRO
2009 — Perpinya Rofes, Lluis Maria vs Meera, Sai — 0-1 — Barbera ESP