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D38a — Ragozin (1923)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4
Les coups candidats
Ambassadeurs : Dizdar, Goran (46x), Sosonko, Gennadi (42x), Inkiov, Ventzislav (42x), Mitkov, Nikola (41x), Salzmann, Stefan (36x), Mamedyarov, Shakhriyar (35x), Giorgadze, Giorgi Gel (29x), Bakheet Farag (29x)
Ambassadeurs : Aleksandrov, Viktor A. (61x), Dizdar, Goran (47x), Inkiov, Ventzislav (41x), Mitkov, Nikola (40x), Sosonko, Gennadi (29x), Alekseev, Evgeny (27x), Hou, Yifan (27x), Kosintseva, Tatiana (25x)
Ambassadeurs : Krasenkow, Michal (29x), Aleksandrov, Viktor A. (28x), Gukesh D (28x), Mamedyarov, Shakhriyar (22x), Yilmaz, M. Fatih (16x), Faizrakhmanov, Ramil (16x), Kosintseva, Tatiana (15x), Albornoz Cabrera, Carlos Daniel (14x)
5.e3 — 13.9% (4359 parties)
Ambassadeurs : Estrin, Yakov (14x), Kolanek, Roman (13x), Hoi, Carsten (13x), Xu, Yi (12x), Landa, Konstantin (9x), Luther, Thomas (9x), Horvath, Peter (9x), Aadhitha Karikalan (8x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.Bg5 5.cxd5 5.Qa4+ 5.e3
<1800 1830 39% 13% 11% 16%
1800-2200 9014 40% 20% 13% 15%
2200-2600 15340 34% 30% 17% 12%
2600+ 2019 37% 30% 19% 8%
Évolution par décennie (% des parties)
Décennie N parties 5.Bg5 5.cxd5 5.Qa4+ 5.e3
1950s 296 16% 24% 8% 40%
1960s 275 12% 33% 8% 36%
1970s 356 21% 27% 7% 36%
1980s 987 42% 28% 5% 15%
1990s 2769 43% 23% 6% 16%
2000s 5633 36% 26% 9% 16%
2010s 12182 38% 25% 13% 14%
2020s 8970 34% 23% 25% 10%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.Bg5 38% 34% ▼ -3.5%
5.cxd5 25% 23% ▼ -2.3%
5.Qa4+ 13% 25% ▲ +12.7%
5.e3 14% 10% ▼ -4.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Hou, Yifan — 10 parties
Carlsen, Magnus — 10 parties
Ding, Liren — 10 parties
Ju, Wenjun — 10 parties
Gukesh D — 10 parties
Smyslov, Vladimir — 2 parties
Botvinnik, Mikhail — 1 partie
Parties historiques
5.Bg5 — 36.4% (11469 parties)
1950 — Bosch van Rosenthal, Edzard vs Rabar, Braslav — 0-1 — ?
1950 — Gawliczek, Andreas vs Bondarevsky, Igor — 0-1 — Szczawno Zdroj
1950 — Gawliczek, Andreas vs Bondarevsky, Igor — 0-1 — Szczawno Zdroj POL
1950 — Araiza Munoz, Jose Joaquin vs Lasker, Edward — 0-1 — Mexico City MEX
1950 — Franklin Kagoni vs Lipnitsky, Isaac — 0-1 — Kiev UKR
5.cxd5 — 24.4% (7690 parties)
1950 — Pavlov, Mircea-Sergiu-Aurelian vs Ragozin, Viacheslav — 1/2-1/2 — URS-ch sf Kiev UKR
1950 — Kholmov, Ratmir D vs Efimov, Kondrat — 0-1 — SSSR
1951 — Shainswit, George vs Bisguier, Arthur B — 1/2-1/2 — New York, NY USA
1951 — Shamkovich, Leonid vs Taimanov, Mark — 1-0 — Baku AZE
1952 — Yudovich, Mikhail sr vs Averbakh, Yuri L — 1/2-1/2 — Moscow RUS
5.Qa4+ — 14.6% (4590 parties)
1950 — Kluger, Gyula vs Pogats, Jozsef Jr. — 1-0 — Budapest HUN
1951 — Troianescu, Octav vs Pogats, Jozsef Jr. — 0-1 — Bucharest ROU
1951 — Makarczyk, Kazimierz vs Urseanu, Veniamin — 0-1 — Bucharest ROU
1952 — Flohr, Salomon vs Averbakh, Yuri L — 1-0 — Moscow RUS
1952 — Eliskases, Erich vs Averbakh, Yuri L — 1/2-1/2 — Saltsjobaden SWE
5.e3 — 13.9% (4359 parties)
1950 — Pilnik, Herman vs Rabar, Braslav — 1/2-1/2 — Bled SLO
1950 — Alexander Tadala vs Abramov, Lev — 0-1 — Leningrad ch sf
1950 — Averbakh, Yuri L vs Estrin, Yakov — 1-0 — Moscow RUS
1950 — Zagoriansky, Evgeny vs Estrin, Yakov — 1-0 — Moscow RUS
1950 — Kuzminykh, Evgeny vs Abramov, Lev — 0-1 — Leningrad RUS