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

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B62f — Richter-Rauzer Keres Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd3
Eval: [+0.22]
Les coups candidats
Ambassadeurs : Tolnai, Tibor (18x), Grabics, Monika (6x), Grabarczyk, Bogdan (6x), Horvath, Adam (5x), Zelcic, Robert (5x), Lach, Aleksandra (5x), Ivkov, Borislav (4x), Rajna, George (4x)
7…Be7 — 29.3% (376 parties)
Ambassadeurs : Tolnai, Tibor (5x), Grabarczyk, Bogdan (5x), Yurtaev, Leonid (4x), Nevednichy, Vladislav (4x), Boleslavsky, Isaac (3x), Hecht, Hans-Joachim (3x), Thorhallsson, Throstur (3x), Aleksic, Nenad (3x)
7…Bd7 — 25.6% (329 parties)
Ambassadeurs : Gan-Erdene, Sugar (7x), Kvaloy, Aksel Bu (5x), Harsha Bharathakoti (4x), Kacharava, Nikolozi (4x), Chen, Ryo (4x), Solodovnichenko, Yuri (4x), Fier, Alexandr (4x), Maghsoodloo, Parham (4x)
7…Qb6 — 2.2% (28 parties)
Ambassadeurs : Perpinya Rofes, Lluis Maria (2x), Lubbe, Melanie (2x), Grabics, Monika (1x), Csaba, Arpad Dr. (1x), Smirin, Ilia (1x), Avrukh, Boris (1x), Meera, Sai (1x), Mostowik, Pawel (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 12 67% 33% — —
1800-2200 255 44% 33% 20% 2%
2200-2600 869 40% 27% 29% 2%
2600+ 40 20% 18% 52% 8%
Évolution par décennie (% des parties)
Décennie N parties 7…a6 7…Be7 7…Bd7 7…Qb6
1930s 1 100% — — —
1940s 2 50% 50% — —
1950s 48 56% 42% 2% —
1960s 17 53% 41% 6% —
1970s 24 79% 17% 4% —
1980s 40 60% 38% 2% —
1990s 119 67% 29% — 1%
2000s 127 57% 36% — 5%
2010s 212 55% 33% 8% 2%
2020s 695 26% 26% 44% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…a6 55% 26% ▼ -28.8%
7…Be7 33% 26% ▼ -7.9%
7…Bd7 8% 44% ▲ +36.3%
7…Qb6 2% 2% ▲ +0.6%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 1 partie
Parties historiques
7…a6 — 41.2% (530 parties)
1938 — Plater, Kazimierz vs Borowski, Natan — 1/2-1/2 — Krakow Krakow POL
1949 — Kholmov, Ratmir D vs Ilivitsky, Georgy A — 1/2-1/2 — Tbilisi GEO
1950 — Balogh, Janos vs Napolitano, Matteo — 0-1 — corr Wch1
1950 — Keres, Paul vs Schtalberg G — 1/2-1/2 — Budapest HUN
1952 — Platz, Hans vs Szily, Jozsef — 1-0 — Helsinki olm
7…Be7 — 29.3% (376 parties)
1949 — Kholmov, Ratmir D vs Boleslavsky, Isaac — 0-1 — Moskou ch-URS
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 — Tolush, Alexander vs Geller, Efim P. — 0-1 — Moskou ch-URS
1951 — Keres, Paul vs Aronin, Lev — 1-0 — Moskou ch-URS
7…Bd7 — 25.6% (329 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, Anton — 1-0 — Czech Republic CZE
7…Qb6 — 2.2% (28 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