B68a - 10.* - Richter-Rauzer (1949)

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B68a — Richter-Rauzer (1949)
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.f4 Be7
Les coups candidats
Ambassadeurs : Schneider, Lars-Ake (26x), Matsukevich, Vladimir Vladimirov (25x), Timman, Jan H (18x), Aigmueller, Max Ing (15x), Lukin, Andrei M (15x), Maki, Veijo (15x), ? (13x), Savitskiy, Sergey (12x)
Ambassadeurs : Byrne, Robert E (6x), Mednis, Edmar J (4x), Kavalek, Lubomir (4x), Tahay, Alexis (3x), Corral Blanco, Juan Antonio (2x), Diaz, Joaquin, Dr. (2x), Granda Zuniga, Julio E (2x), Jansa, Vlastimil (2x)
10.Kb1 — 5.6% (204 parties)
Ambassadeurs : Stribuk, Artiom (3x), Schneider, Lars-Ake (2x), Riemersma, Li (2x), Popovic, Petar (2x), Tischbierek, Raj (2x), Demchenko, Anton (2x), Najar Arrieta, Oriol (2x), Lupulescu, Constantin (2x)
10.Nb3 — 2.7% (98 parties)
Ambassadeurs : Ivanovic, Bozidar (3x), Popovic, Petar (3x), Ioseliani, Nana (2x), Bellin, Robert (2x), Gutenev, Alexander (2x), Popov, Vladimir Valentinovich (2x), Van den Berg, Carel B (1x), Stahlberg, Gideon (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10.Nf3 10.Be2 10.Kb1 10.Nb3
<1800 112 66% 9% 9% 4%
1800-2200 920 67% 13% 7% 3%
2200-2600 1995 80% 8% 6% 3%
2600+ 69 83% 6% 7% 1%
Évolution par décennie (% des parties)
Décennie N parties 10.Nf3 10.Be2 10.Kb1 10.Nb3
1950s 91 85% 9% 1% 1%
1960s 139 81% 9% 1% 1%
1970s 298 74% 11% 1% 3%
1980s 281 80% 11% 2% 2%
1990s 398 70% 13% 5% 6%
2000s 478 74% 13% 6% 2%
2010s 833 74% 9% 7% 3%
2020s 1120 79% 7% 8% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10.Nf3 74% 79% ▲ +4.5%
10.Be2 9% 7% ▼ -2.4%
10.Kb1 7% 8% ▲ +1.5%
10.Nb3 3% 2% ▼ -1.6%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 8 parties
Anand, Viswanathan — 3 parties
Ju, Wenjun — 3 parties
Karpov, Anatoly — 2 parties
Botvinnik, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Hou, Yifan — 1 partie
Ding, Liren — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
10.Nf3 — 76.0% (2764 parties)
1950 — Ravinsky, Grigory vs Koblencs, Alexander — 1/2-1/2 — Leningard
1950 — Kamyshov, Mikhail vs Chestnov, Vitaliy A. — 0-1 — URS-ch sf Tartu
1952 — Arvidsson, Egon vs Goode, Royal — 1-0 — ?
1952 — Boutteville, Cesar vs Borsony, Valt — 0-1 — ?
1953 — Olafsson, Fridrik vs Alexander Tadala — 0-1 — Hastings ENG
10.Be2 — 9.5% (344 parties)
1954 — Cross, Robert Gary vs Grumette, L — 1-0 — Los Angeles, CA USA
1955 — Lapiken, Peter Petrovich vs Rossolimo, Nicolas — 1/2-1/2 — Long Beach, CA USA
1957 — Rodriguez Garcia, Jesus vs Franco Raymundo, Eduardo — 0-1 — Zaragoza
1957 — Hanninen, Veikko vs Olafsson, Fridrik — 1/2-1/2 — Wageningen NED
1958 — Darznieks, Artur vs Pupols, Viktors — 1-0 — Riga LAT
10.Kb1 — 5.6% (204 parties)
1956 — Keres, Paul Petrovich vs Ciocaltea, Victor — 1/2-1/2 — Moscow RUS
1962 — Cobo Arteaga, Eldis vs Perez Perez, Francisco Jose — 1/2-1/2 — Havana CUB
1976 — Borm, Frans vs Agur, Elieser — 1/2-1/2 — ?
1979 — Sokolowski, Stanislaw vs Klaput, Edward — 0-1 — Bydgoszcz POL
1982 — Cordovil, Joao vs Santos, Luis — 0-1 — Mangualde
10.Nb3 — 2.7% (98 parties)
1959 — Tumurbator, Purev vs Malich, Burkhard, Dr. — 0-1 — Budapest HUN
1963 — Van den Berg, Carel B vs Stahlberg, Gideon — 1/2-1/2 — Beverwijk NED
1963 — Pietzsch, Wolfgang vs Cuijpers, Frans Andre — 1-0 — It \\ Moscow
1971 — Kozlov, Vladimir N vs Lepeshkin, Vladimir — 1-0 — USSR
1972 — Tarjan, James vs Bellin, Robert — 1-0 — Norwich ENG