B62a - 7.* - Richter-Rauzer Variation (1935)

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B62a — Richter-Rauzer Variation (1935)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6
Les coups candidats
Ambassadeurs : Wosch, Arkadiusz (417x), Kozul, Zdenko (231x), Kotronias, Vasilios (157x), ? (145x), Van der Wiel, John T.H. (103x), Greenfeld, Alon (103x), Csom, Istvan (91x), Lanka, Zigurds (88x)
Ambassadeurs : Tolnai, Tibor (23x), Grabarczyk, Bogdan (10x), Grabics, Monika (9x), Zelcic, Robert (9x), Gan-Erdene, Sugar (9x), Yurtaev, Leonid (7x), Aleksic, Nenad (7x), Thorhallsson, Throstur (7x)
Ambassadeurs : Lengyel, Bela (37x), Milov, Leonid (14x), Westerinen, Heikki M.J. (12x), Bryla, Hanna (9x), Escofet, Jaime (8x), Berzinsh, Roland (6x), Podoba, Milan (6x), Yudasin, Leonid (6x)
7.f4 — 1.8% (822 parties)
Ambassadeurs : Wosch, Arkadiusz (11x), Nevostrujev, Vladimir (4x), Wikman, Bengt (3x), Schevnin, Leonid (3x), Gebuhr, Guenter (3x), Sitorus, Yosua (3x), Agathiyan Susil (3x), Costa, Fabrizio (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Qd2 7.Qd3 7.Bb5 7.f4
<1800 1438 81% 3% 4% 4%
1800-2200 12398 86% 3% 3% 3%
2200-2600 24279 92% 4% 3% 1%
2600+ 966 95% 3% 2% —
Évolution par décennie (% des parties)
Décennie N parties 7.Qd2 7.Qd3 7.Bb5 7.f4
1950s 1014 84% 5% 2% 1%
1960s 764 88% 2% 2% 3%
1970s 1277 92% 2% 1% 2%
1980s 2779 93% 1% 2% 2%
1990s 7928 89% 2% 4% 2%
2000s 12521 92% 1% 2% 2%
2010s 11984 92% 2% 2% 2%
2020s 6342 78% 13% 5% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Qd2 92% 78% ▼ -13.1%
7.Qd3 2% 13% ▲ +11.3%
7.Bb5 2% 5% ▲ +3.5%
7.f4 2% 1% ▼ -0.9%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Botvinnik, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Hou, Yifan — 10 parties
Ju, Wenjun — 6 parties
Ding, Liren — 4 parties
Gukesh D — 2 parties
Parties historiques
7.Qd2 — 89.3% (39822 parties)
1950 — Guldin, Lev Isaevich vs Dubinin, Peter — 0-1 — Gorky
1950 — Averbakh, Yuri L vs Suetin, Alexey S — 1-0 — Moskou ch-URS
1950 — Olafsson, Fridrik vs Boey, Josef — 1-0 — Birmingham ENG
1950 — Geis, Emil vs Walther, Edgar — 0-1 — cr.
1950 — Szily, Jozsef vs Pogats, Jozsef Jr. — 1-0 — Budapest HUN
7.Qd3 — 3.2% (1413 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 — Balogh, Janos vs Napolitano, Matteo — 0-1 — corr Wch1
1950 — Alexander Tadala vs Geller, Efim P. — 0-1 — Moskou ch-URS
1950 — Keres, Paul vs Stahlberg, Gideon — 1/2-1/2 — Budapest HUN
7.Bb5 — 2.8% (1234 parties)
1951 — Canal, Esteban vs Rellstab, Ludwig — 1-0 — Reggio Emilia ITA
1951 — Puc, Stojan vs Stoltz, Gosta — 1/2-1/2 — Dortmund GER
1951 — Canal, Esteban vs Beni, Alfred — 1/2-1/2 — Vienna AUT
1952 — Canal, Esteban vs Eken, Max — 1/2-1/2 — Zurich SUI
1954 — Rossolimo, Nicolas vs Sherwin, James T — 1/2-1/2 — New York ch-USA
7.f4 — 1.8% (822 parties)
1956 — Werle, Allan vs Nyman, Sture V — 1-0 — Stockholmsmasterskap
1957 — Brameyer, Hermann vs Nitsche, Werner — 0-1 — Ruhla
1957 — Chaude de Silans, Chantal vs Moelman, Tora — 1-0 — Emmen
1958 — Schaposchnikow, J. vs Duenhaupt, Heinz-Wilhelm Dr — 1/2-1/2 — corr USSR-GER
1958 — Blackstone, John vs Powers, Christopher — 0-1 — San Jose, CA USA