B64a - 9.f4 - Richter-Rauzer [+0.61]

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B64a — Richter-Rauzer
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4
Eval: [+0.61]
Les coups candidats
Ambassadeurs : Hildebrand, Gerald (46x), Kotronias, Vasilios (45x), Muir, Andrew J (21x), Inkiov, Ventzislav (16x), Dembo, Yelena (13x), ? (13x), Sitorus, Yosua (13x), Yudasin, Leonid (13x)
Ambassadeurs : Fishbein, Alexander (16x), Gurevich, Dmitry (14x), Gurevich, Daniel (14x), Rodriguez Cespedes, Amador (13x), Geller, Efim P. (12x), Matulovic, Milan (11x), Kupreichik, Viktor D (11x), Sosonko, Gennadi (10x)
9…d5 — 3.4% (164 parties)
Ambassadeurs : Furman, Boris (11x), Tal, Mikhail (8x), Legrand, Stephane (6x), Radulov, Ivan (4x), Minev, Nikolay N (3x), Sosonko, Gennadi (3x), Korchnoi, Viktor (3x), Brooks, Michael (3x)
9…a6 — 2.9% (139 parties)
Ambassadeurs : Vogel, Robert (3x), Denker, Arnold S (2x), Keres, Paul (2x), Szabo, Ladislav (2x), Heinicke, Herbert (2x), Chemin, Vitorio (2x), Charbonneau, Alain (2x), Chyla, Jiri (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Nxd4 9…h6 9…d5 9…a6
<1800 74 53% 27% 5% 9%
1800-2200 1097 58% 30% 4% 4%
2200-2600 2304 55% 39% 2% 1%
2600+ 131 66% 33% — —
Évolution par décennie (% des parties)
Décennie N parties 9…Nxd4 9…h6 9…d5 9…a6
1930s 8 62% — 12% 12%
1940s 6 50% — — 33%
1950s 198 41% 29% 8% 4%
1960s 142 35% 27% 15% 5%
1970s 136 34% 40% 13% 4%
1980s 504 34% 60% 1% 1%
1990s 977 56% 35% 2% 3%
2000s 1305 61% 29% 3% 3%
2010s 1327 58% 33% 3% 3%
2020s 182 66% 25% 4% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Nxd4 58% 66% ▲ +7.9%
9…h6 33% 25% ▼ -8.2%
9…d5 3% 4% ▲ +0.8%
9…a6 3% 2% ▼ -0.9%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Karpov, Anatoly — 5 parties
Karpov, Aleksandr — 5 parties
Kasparov, Garry — 3 parties
Carlsen, Magnus — 3 parties
Euwe, Max — 1 partie
Parties historiques
9…Nxd4 — 54.0% (2586 parties)
1935 — Marsky, Mark Lvovich vs Yudovich, Mikhail M — 0-1 — VZSPS ch sf
1936 — Gergenreder vs Silic, Vladislav — 0-1 — Moscow RUS
1938 — Plater, Kazimierz vs Kapfer, Thomas — 1-0 — Krakow POL
1938 — Pytlakowski, Andrzej vs Bluemich, Max — 1-0 — Krakow POL
1938 — Pytlakowski, Andrzej vs Mross, Paul — 1/2-1/2 — Krakow POL
9…h6 — 34.8% (1663 parties)
1953 — Djurasevic, Bozidar vs Bogdanovic, Rajko — 1/2-1/2 — Zagreb CRO
1954 — Kolvig, Bent vs Andersen, Henrik — 1-0 — Copenhagen DEN
1954 — Zagorovsky, Vladimir vs Livshin, Iosif — 1-0 — Moscow RUS
1954 — Toran Albero, Roman vs Jacob, Franz — 1-0 — Munich GER
1954 — Sokolsky, Alexey vs Livshin, Iosif — 1-0 — Kiev ch-URS
9…d5 — 3.4% (164 parties)
1935 — Tartakower, Savielly vs Friedman, Henryk — 1-0 — Lvov UKR
1955 — Diez del Corral, Jesus vs Taimanov, Mark — 0-1 — Hastings ENG
1955 — Sokolsky, Alexey vs Saigin, Vladimir — 1-0 — Kiev UKR
1955 — Tal, Michael vs Kortchnoi, V. — 1/2-1/2 — USSR
1955 — Nei, Iivo vs Tal, Mikhail — 1/2-1/2 — URS-ch sf Riga LAT
9…a6 — 2.9% (139 parties)
1935 — Konstantinopolsky, Alexander vs Chistiakov, Alexander — 1-0 — ?
1941 — Seidman, Herbert vs Denker, Arnold S — 0-1 — Hamilton
1947 — Sahlmann, Walter vs Ernst, Wilhelm — 1-0 — Weidenau
1952 — Lehmann, Heinz vs Heinicke, Herbert — 1/2-1/2 — Hagen
1954 — Kupper, Josef vs Kelly, Terry — 1/2-1/2 — Amsterdam NED