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D38g — Ragozin (1952)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4 5.cxd5 exd5 6.Bg5 h6 7.Bh4
Les coups candidats
7…O-O — 36.2% (957 parties)
Ambassadeurs : Salzmann, Stefan (16x), Legemaat, Gert (12x), Dunlop, Gordon (12x), Basso, Pier Luigi (8x), Grischuk, Alexander (7x), Voit, Daria (7x), Gunina, Valentina (7x), Langer, Raimund (6x)
7…g5 — 22.7% (601 parties)
Ambassadeurs : Mitkov, Nikola (15x), Sosonko, Gennadi (9x), Furman, Boris (6x), Miedema, David (6x), Serper, Grigory (4x), Khenkin, Igor (4x), Drozdovskij, Yuri (4x), Timman, Jan H (3x)
7…c5 — 22.4% (593 parties)
Ambassadeurs : Aleksandrov, Viktor A. (18x), Langer, Raimund (13x), Tan, Zhongyi (10x), Palac, Mladen (10x), Inkiov, Ventzislav (8x), Dizdar, Goran (7x), Hou, Yifan (7x), Sosonko, Gennadi (5x)
7…Nbd7 — 8.7% (231 parties)
Ambassadeurs : Probola, Ryszard (11x), Le Bled, Pierre (10x), Cumming, David R (7x), Harvey, Donald J (5x), Aronian, Levon (4x), Vachier-Lagrave, Maxime (3x), Piorun, Kacper (3x), Bishop, William (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…O-O 7…g5 7…c5 7…Nbd7
<1800 80 29% 24% 16% 15%
1800-2200 661 43% 17% 18% 11%
2200-2600 1552 35% 26% 22% 8%
2600+ 232 34% 14% 33% 9%
Évolution par décennie (% des parties)
Décennie N parties 7…O-O 7…g5 7…c5 7…Nbd7
1950s 19 5% 26% 58%
1960s 22 9% 27% 55%
1970s 30 7% 23% 70%
1980s 61 2% 44% 39% 2%
1990s 97 7% 42% 38% 1%
2000s 291 5% 65% 22% 0%
2010s 1050 27% 18% 33% 13%
2020s 1075 60% 13% 7% 9%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…O-O 27% 60% ▲ +33.8%
7…g5 18% 13% ▼ -5.4%
7…c5 33% 7% ▼ -26.2%
7…Nbd7 13% 9% ▼ -3.6%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 9 parties
Gukesh D — 8 parties
Carlsen, Magnus — 7 parties
Tal, Mikhail — 6 parties
Anand, Viswanathan — 6 parties
Ding, Liren — 6 parties
Kasparov, Garry — 3 parties
Kramnik, Vladimir — 2 parties
Botvinnik, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
7…O-O — 36.2% (957 parties)
1959 — Averbakh, Yuri L vs Karadzhaev, A. — 1-0 — Erevan ARM
1962 — Taimanov, Mark vs Sliwa, Bogdan — 1-0 — Marianske Lazne
1966 — Tal, Mikhail vs Damjanovic, Mato — 1-0 — Sarajevo Sarajevo BIH
1976 — Eperjesi, Laszlo Dr. vs Karsa, Laszlo — 1-0 — Hungary ch
1978 — Taylor, Gordon vs Farges, Yves — 0-1 — Vancouver BC CAN
7…g5 — 22.7% (601 parties)
1954 — Botvinnik, Mikhail vs Kan, Ilya A — 1-0 — Training
1957 — Rejfir, Josef vs Nedeljkovic, Srecko M — 0-1 — Wenen etc
1957 — Borisenko, Georgy K vs Averbakh, Yuri L — 1/2-1/2 — Sverdlovsk
1958 — Geller, Efim P. vs Gipslis, Aivars — 1-0 — Tashkent UZB
1959 — Bobotsov, Milko G vs Popov, Vladilen — 0-1 — Sofia ch-BUL
7…c5 — 22.4% (593 parties)
1952 — Staahlberg, Gideon vs Filip, Miroslav — 1-0 — Helsinki FIN
1956 — Furman, Semyon vs Abanin, Vladimir — 1/2-1/2 — Tbilisi GEO
1957 — Borisenko, Georgy K vs Arseniev, Vladimir V. — 1-0 — Krasnodar RUS
1958 — Olafsson, Fridrik vs Fischer, Robert J — 1-0 — Portoroz SLO
1958 — Olafsson, Trausti vs FISCHER KENNY — 1-0 — Portoroz SLO
7…Nbd7 — 8.7% (231 parties)
1986 — Almada, Enrique vs Bauza, Alejandro — 1-0 — Uruguay
1998 — Greenfeld, Alon vs Mastrovasilis, Athanasios — 1/2-1/2 — Korinthos GRE
2008 — Raijmaekers, René C. H. vs Cipka, Ivan — 1-0 — ICCF
2010 — ? vs Zhao, Xue — 1/2-1/2 — Antakya TUR
2011 — Kratochvil, Jan vs Abdelkreem, Reda Abdelrahman — 1-0 — ?