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B67a — Richter-Rauzer (1954)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7
Les coups candidats
Ambassadeurs : Wosch, Arkadiusz (234x), Kozul, Zdenko (138x), Schneider, Lars-Ake (49x), Mednis, Edmar J (35x), Yermolinsky, Alex (31x), Tukmakov, Vladimir B (27x), Matsukevich, Vladimir Vladimirov (27x), Klovans, Janis (24x)
Ambassadeurs : Kozul, Zdenko (77x), Wosch, Arkadiusz (72x), Korneev, Oleg (23x), Nevednichy, Vladislav (23x), Gupta, Abhijeet (21x), Lanka, Zigurds (18x), Baklan, Vladimir (17x), Lupulescu, Constantin (17x)
9.Kb1 — 5.0% (816 parties)
Ambassadeurs : Nevednichy, Vladislav (9x), Wosch, Arkadiusz (8x), Kozul, Zdenko (8x), Stribuk, Artiom (7x), Kotronias, Vasilios (7x), Roshka, Yevgeniy (6x), Jain Kashish Manoj (6x), Fedorchuk, Sergey A. (6x)
Ambassadeurs : Wosch, Arkadiusz (10x), Kozul, Zdenko (5x), Shagalovich, Abo (4x), ? (4x), Simmelink, Joop Theo (4x), Dimitrov, Vladimir (3x), Heinbuch, Detlef Ulrich (3x), Kudriashov, Anatoli (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9.f4 9.f3 9.Kb1 9.Be2
<1800 456 68% 25% 3% 2%
1800-2200 4368 65% 27% 5% 1%
2200-2600 9697 61% 30% 5% 2%
2600+ 375 49% 36% 11% 0%
Évolution par décennie (% des parties)
Décennie N parties 9.f4 9.f3 9.Kb1 9.Be2
1950s 279 89% 3% 6%
1960s 262 95% 1% 1%
1970s 690 86% 10% 0% 2%
1980s 731 79% 9% 0% 9%
1990s 1725 73% 19% 2% 3%
2000s 4071 59% 36% 1% 1%
2010s 5308 66% 30% 2% 1%
2020s 3320 49% 27% 19% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.f4 66% 49% ▼ -16.1%
9.f3 30% 27% ▼ -3.1%
9.Kb1 2% 19% ▲ +17.5%
9.Be2 1% 0% ▼ -0.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Anand, Viswanathan — 10 parties
Hou, Yifan — 10 parties
Kasparov, Garry — 7 parties
Carlsen, Magnus — 6 parties
Karpov, Anatoly — 5 parties
Ju, Wenjun — 5 parties
Ding, Liren — 3 parties
Botvinnik, Mikhail — 2 parties
Gukesh D — 2 parties
Kramnik, Vladimir — 1 partie
Parties historiques
9.f4 — 63.9% (10473 parties)
1950 — Olafsson, Fridrik vs Boey, Josef — 1-0 — Birmingham ENG
1950 — Sebestyen, Balazs vs Benko, Pal — 1-0 — Budapest HUN
1950 — Ravinsky, Grigory vs Koblencs, Alexander — 1/2-1/2 — Leningard
1950 — Meyer, Eugene vs Heemsoth, Hermann — 0-1 — corr Blumich mem
1950 — Estrin, Yakov vs Sidorov, Anatoly — 0-1 — URS-ch sf Gorky
9.f3 — 27.1% (4443 parties)
1953 — Zvorykina, Kira Alekseyevna vs Bykova, Elizaveta — 1-0 — Rostov RUS
1954 — Voitsikh Nina vs Zvorykina, Kira — 1-0 — Riga LAT
1954 — Szijjarto, Beni vs Bak, Istvan — 0-1 — Pecs
1955 — Persitz, Raaphi vs Ivkov, Borislav — 0-1 — Hastings ENG
1955 — Estrin, Yakov vs Stolyar, Danu Mikh — 1/2-1/2 — USSR
9.Kb1 — 5.0% (816 parties)
1973 — Fichtl, Jiri vs Ghitescu, Theodor — 0-1 — Bucharest Bucharest ROM
1977 — Tseitlin, Mark D vs Mista, Ladislav — 0-1 — Olomouc CZE
1979 — Bouaziz, Slim vs Kristiansen, Jens — 1/2-1/2 — Copenhagen DEN
1985 — Kurtenkov, Atanas vs Paunovic, Dragan — 1-0 — Vrnjacka Banja SRB
1990 — Speelman, Jon S vs Sax, Gyula — 1/2-1/2 — Moscow RUS
9.Be2 — 1.7% (277 parties)
1954 — Lilienthal, Andor vs Petrosian, Tigran V. — 0-1 — Kiev ch-URS
1954 — Zagorovsky, Vladimir vs Polugaevsky, Lev — 0-1 — Gorki ch22-SU sf
1955 — Lukic, Arsenije vs Matulovic, Milan — 1/2-1/2 — Novi Sad SRB
1955 — Dorawa, Bernhard vs Raths, Arno — 1-0 — Zwickau
1955 — Elliott, Henry J vs Collins, John W — 1-0 — New York, NY USA