B66g - 8.O-O-O h6 9.Bf4 - Richter-Rauzer (1949)

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B66g — Richter-Rauzer
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 h6 9.Bf4
Eval: [+0.18]
Les coups candidats
9…Bd7 — 97.0% (1507 parties)
Ambassadeurs : Csom, Istvan (33x), Lerner, Konstantin Z (19x), Dlugy, Maxim (16x), Kholmov, Ratmir D (15x), Radulov, Ivan (15x), Kotronias, Vasilios (14x), Tukmakov, Vladimir B (12x), Lanka, Zigurds (12x)
9…d5 — 1.7% (27 parties)
Ambassadeurs : Minaya, Juan (2x), Mendoza, Luis (2x), Needham, Teresa (1x), Hund, Barbara (1x), Roeberg, Frank (1x), Wihl, T. (1x), Aronov, Maksym (1x), Chornyy, Anton (1x)
9…Ne5 — 0.7% (11 parties)
Ambassadeurs : Platonov, Igor V (1x), Timoshenko, Anatoly (1x), Altgelt, Alexander (1x), Ebert, Manfred (1x), Bjerring, Kai (1x), Durban Piera, Joan (1x), Renault, Mael (1x), Israel, Gregory (1x)
9…e5 — 0.2% (3 parties)
Ambassadeurs : Chaurang (1x), Acuna Moore, Kevin Stiven (1x), Gaprindashvili, Nona (1x), Kasprzyk, Irena (1x), Liatukas, Mikas (1x), Ralys, Vincas (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Bd7 9…d5 9…Ne5 9…e5
<1800 4 100% — — —
1800-2200 201 90% 5% 2% 0%
2200-2600 993 99% 1% 0% 0%
2600+ 33 97% 3% — —
Évolution par décennie (% des parties)
Décennie N parties 9…Bd7 9…d5 9…Ne5 9…e5
1940s 2 100% — — —
1950s 66 97% — — 2%
1960s 48 98% — 2% —
1970s 98 97% 2% — 1%
1980s 220 100% 0% — —
1990s 645 98% 1% 1% —
2000s 317 96% 2% 1% 0%
2010s 136 92% 7% 1% —
2020s 21 95% 5% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Bd7 92% 95% ▲ +3.3%
9…d5 7% 5% ▼ -1.9%
9…Ne5 1% 0% ▼ -1.5%
9…e5 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 4 parties
Kramnik, Vladimir — 4 parties
Karpov, Anatoly — 4 parties
Botvinnik, Mikhail — 2 parties
Anand, Viswanathan — 2 parties
Parties historiques
9…Bd7 — 97.0% (1507 parties)
1949 — Liublinsky, Victor vs Aronin, Lev — 1/2-1/2 — Moskou ch-URS
1949 — De Souza Mendes, Joao vs Cruz, Walter — 0-1 — Rio de Janeiro BRA
1950 — Averbakh, Yuri L vs Suetin, Alexey S — 1-0 — ?
1950 — Keres, Paul vs Aronin, Lev — 1-0 — Moskou ch-URS
1950 — Averbakh, Yuri L vs Suetin, Alexey S — 1-0 — Moskou ch-URS
9…d5 — 1.7% (27 parties)
1972 — Minaya, Juan vs Mendoza, Luis — 1-0 — Barranquilla COL
1972 — Minaya, Juan vs Mendoza, Luis — 1-0 — Barranquilla COL
1984 — Needham, Teresa vs Hund, Barbara — 1/2-1/2 — Helsinge
1993 — Krakops, Maris vs Lutskan, Ilmars — 0-1 — Riga LAT
1994 — Krizsany, Laszlo vs Guerrero Varga, Pablo — 1/2-1/2 — Budapest HUN
9…Ne5 — 0.7% (11 parties)
1963 — Platonov, Igor V vs Timoshenko, Anatoly — 1-0 — Kiev UKR
1991 — Altgelt, Alexander vs Ebert, Manfred — 1-0 — GER
1998 — Bjerring, Kai vs Durban Piera, Joan — 1/2-1/2 — Brno CZE
1998 — Renault, Mael vs Israel, Gregory — 1-0 — FRA-ch opA Meribel
1999 — Christ, Ralf vs Zeier, Robert — 1-0 — Untergrombach
9…e5 — 0.2% (3 parties)
1957 — Chaurang vs Acuna Moore, Kevin Stiven — 0-1 — The Hague NED
1975 — Gaprindashvili, Nona vs Kasprzyk, Irena — 1-0 — Timisoara
2008 — Liatukas, Mikas vs Ralys, Vincas — 1-0 — Vilnius LTU