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D38n — Ragozin (1942)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4 5.Bg5 h6 6.Bxf6 Qxf6 7.cxd5 exd5
Les coups candidats
8.Qb3 — 41.7% (520 parties)
Ambassadeurs : Mitkov, Nikola (11x), Padevsky, Nikola (5x), Malich, Burkhard, Dr. (5x), Hoekstra, Matthew (5x), Cramling, Pia (5x), Kupreichik, Viktor D (4x), Hou, Yifan (4x), Hort, Vlastimil (3x)
8.Qa4+ — 27.1% (338 parties)
Ambassadeurs : Dreev, Aleksey (6x), Pravec, Ladislav (4x), Langeweg, Kick (3x), Ghitescu, Theodor (3x), Dizdar, Goran (3x), Pogorelov, Ruslan (3x), Pantzar, Milton (3x), Filip, Miroslav (2x)
8.e3 — 16.6% (207 parties)
Ambassadeurs : Galaktionov, Artem (6x), Hebert, Jean (3x), Duncan, Chris R (3x), Estrin, Yakov (2x), Berg, Klaus (2x), Sosonko, Gennadi (2x), Dunnington, Angus J (2x), Potapova, Margarita (2x)
8.Rc1 — 9.1% (114 parties)
Ambassadeurs : Averbakh, Yuri L (3x), Malich, Burkhard, Dr. (3x), Peric, Slavisa (3x), Medina-Garcia, Antonio (2x), Trifunovic, Petar (2x), Pachman, Ludek (2x), Blatny, Pavel (2x), Gligorić, Svetozar (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.Qb3 8.Qa4+ 8.e3 8.Rc1
<1800 24 33% 21% 21% 12%
1800-2200 248 41% 26% 22% 5%
2200-2600 807 43% 27% 15% 10%
2600+ 50 34% 50% 10% 6%
Évolution par décennie (% des parties)
Décennie N parties 8.Qb3 8.Qa4+ 8.e3 8.Rc1
1950s 36 31% 33% 8% 22%
1960s 29 41% 28% 7% 17%
1970s 41 59% 24% 7% 7%
1980s 96 45% 26% 11% 16%
1990s 143 45% 20% 10% 17%
2000s 235 50% 19% 17% 9%
2010s 400 38% 34% 17% 6%
2020s 266 36% 27% 24% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.Qb3 38% 36% ▼ -1.3%
8.Qa4+ 34% 27% ▼ -7.4%
8.e3 17% 24% ▲ +7.4%
8.Rc1 6% 6% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 5 parties
Hou, Yifan — 5 parties
Kasparov, Garry — 1 partie
Ju, Wenjun — 1 partie
Carlsen, Magnus — 1 partie
Gukesh D — 1 partie
Parties historiques
8.Qb3 — 41.7% (520 parties)
1950 — Kholmov, Ratmir D vs Efimov, Kondrat — 0-1 — SSSR
1952 — Yudovich, Mikhail sr vs Averbakh, Yuri L — 1/2-1/2 — Moscow RUS
1952 — Cobo Arteaga, Eldis vs Rossetto, Hector — 0-1 — Helsinki olm
1953 — Laszlo, Csaba vs Gasztonyi, Endre — 1/2-1/2 — HUN-ch Budapest HUN
1953 — Smyslov, Vasily vs Averbakh, Yuri L — 1/2-1/2 — Zurich SUI
8.Qa4+ — 27.1% (338 parties)
1950 — Pavlov, Mircea-Sergiu-Aurelian vs Ragozin, Viacheslav — 1/2-1/2 — URS-ch sf Kiev UKR
1953 — Boleslavsky, Isaac vs Averbakh, Yuri L — 1/2-1/2 — Zurich SUI
1954 — Filip, Miroslav vs Voiculescu, Paul — 1-0 — Bucharest ROU
1955 — Petrosian, Tigran V. vs Abanin, Vladimir — 1/2-1/2 — Moskou ch-URS
1955 — Filip, Miroslav vs Rabar, Braslav — 1/2-1/2 — Goteborg SWE
8.e3 — 16.6% (207 parties)
1952 — Petrosian, Tigran V. vs Pachman, Ludek — 1-0 — Stockholm izt
1955 — Chistiakov, Alexander vs Estrin, Yakov — 0-1 — Moscow RUS
1956 — Boey, Josef vs Platz, Hans — 0-1 — Moskou olm
1965 — Polugaevsky, Lev vs Taimanov, Mark — 1/2-1/2 — Budapest HUN
1968 — Zaitsev, Alexander vs Barczay, Laszlo — 1/2-1/2 — East Berlin GER
8.Rc1 — 9.1% (114 parties)
1950 — Benko, Pal vs Gereben, Erno — 1/2-1/2 — Budapest HUN
1952 — Liublinsky, Victor vs Estrin, Yakov — 0-1 — Moscow RUS
1952 — Trifunovic, Petar vs Gligorić, Svetozar — 1/2-1/2 — Belgrade SRB
1952 — Pachman, Ludek vs Averbakh, Yuri L — 1/2-1/2 — Saltsjobaden SWE
1952 — Pachman, Ludek vs Averbakh, Yuri L — 1/2-1/2 — Saltsjobaden SWE