B67c - 9.f3 - Richter-Rauzer (1955)

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B67c — Richter-Rauzer (1955)
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 9.f3
Les coups candidats
Ambassadeurs : Wosch, Arkadiusz (74x), Kozul, Zdenko (30x), Nevednichy, Vladislav (22x), Gupta, Abhijeet (16x), Brandenburg, Daan (15x), Korneev, Oleg (15x), Lupulescu, Constantin (13x), Swinkels, Robin (11x)
9…b5 — 14.6% (675 parties)
Ambassadeurs : Kozul, Zdenko (13x), Bazhenov, Aleksandr (6x), Hoeksema, Hendrik Pieter (5x), Manik, Mikulas (5x), Slingerland, Fred (5x), Aloma Vidal, Robert (4x), Zabotin, Alexander (4x), Savchenko, Boris (4x)
9…h6 — 13.3% (617 parties)
Ambassadeurs : Baklan, Vladimir (12x), Zawadzki, Stanislaw (9x), Lanka, Zigurds (9x), Liutsko, Igor (8x), Nijboer, Friso (8x), Hirneise, Tobias (8x), Zawadzka, Jolanta (6x), Jankovic, Alojzije (5x)
9…Nxd4 — 13.0% (601 parties)
Ambassadeurs : Vokhidov, Shamsiddin (6x), Andersen, Jens Erik N. (5x), Santos Latasa, Jaime (5x), Stribuk, Artiom (5x), Khamdamova, Afruza (5x), Banas, Jan (4x), Kistrup, Nicolai (4x), David, Alberto (4x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Be7 9…b5 9…h6 9…Nxd4
<1800 121 47% 21% 15% 12%
1800-2200 1243 46% 16% 14% 13%
2200-2600 2966 48% 14% 13% 13%
2600+ 138 38% 9% 14% 22%
Évolution par décennie (% des parties)
Décennie N parties 9…Be7 9…b5 9…h6 9…Nxd4
1950s 9 44% — — 11%
1960s 2 50% — — —
1970s 68 50% 16% 9% 12%
1980s 66 42% 21% 15% 9%
1990s 336 40% 17% 11% 4%
2000s 1526 52% 14% 18% 1%
2010s 1672 54% 20% 14% 4%
2020s 948 33% 5% 5% 53%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Be7 54% 33% ▼ -21.1%
9…b5 20% 5% ▼ -14.2%
9…h6 14% 5% ▼ -8.8%
9…Nxd4 4% 53% ▲ +49.6%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 7 parties
Hou, Yifan — 6 parties
Anand, Viswanathan — 4 parties
Carlsen, Magnus — 3 parties
Gukesh D — 2 parties
Karpov, Anatoly — 1 partie
Botvinnik, Mikhail — 1 partie
Kramnik, Vladimir — 1 partie
Ju, Wenjun — 1 partie
Ding, Liren — 1 partie
Parties historiques
9…Be7 — 47.6% (2203 parties)
1954 — Voitsikh Nina vs Zvorykina, Kira — 1-0 — Riga LAT
1955 — Scherbakov, Vadim vs Ilivitsky, Georgy A — 0-1 — Moskou ch-URS
1955 — Sherbakov, Vladimir vs Ilivitsky, Georgy A — 0-1 — ?
1955 — Gipslis, Aivars vs Renter, Raul — 1-0 — URS-ch sf Vilnius LTU
1963 — Blackstone, John vs Henderson, SE — 1-0 — Hamilton AFB, CA
9…b5 — 14.6% (675 parties)
1972 — Santos, Luis vs Haynes, Trevor Anthony — 0-1 — Skopje ol (Men) fin-C
1974 — Ostojic, Predrag vs Padevsky, Nikola — 0-1 — Kragujevac SRB
1975 — Chesca, Alexandru vs Voiculescu, Paul — 1/2-1/2 — Sinaia
1975 — Barea, Luis vs Paglilla, Carlos — 0-1 — Buenos Aires ch-ARG
1975 — Kupreichik, Ilya vs Molchalov — 1-0 — USSR
9…h6 — 13.3% (617 parties)
1975 — Vitolinsh, Alvis vs Sakharov, Yuri G. — 1-0 — USSR
1976 — Pigott, John C vs Bellin, Robert — 0-1 — Portsmouth ch-BCF
1976 — Radulov, Ivan vs Gheorghiu, Florin — 1-0 — Athens GRE
1977 — Nicevski, Risto vs Grigorov, Jordan N — 1-0 — Pernik
1977 — Gipslis, Aivars vs Tal, Mikhail — 1/2-1/2 — Tallinn EST
9…Nxd4 — 13.0% (601 parties)
1955 — Persitz, Raaphi vs Ivkov, Borislav — 0-1 — Hastings ENG
1973 — Tal, Mikhail vs Balashov, Yuri — 1/2-1/2 — Tallinn EST
1974 — Tal, Mikhail vs Deze, Anton — 1-0 — Novi Sad SRB
1975 — Gipslis, Aivars vs Martinovic, Slobodan — 1-0 — Vrnjacka Banja SRB
1975 — Dunne, David vs Muir, Andrew J — 0-1 — Carmarthen