C91a - 9…* - Closed (1905)

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C91a — Closed (1905)
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.d4
Les coups candidats
Ambassadeurs : Van Riemsdijk, Herman C. (81x), Beliavsky, Alexander G (25x), Nijboer, Friso (24x), Tseshkovsky, Vitaly (23x), Van der Wiel, John T.H. (21x), Ostojic, Predrag (20x), Prokopp, Heinz (19x), Negi, Parimarjan (19x)
9…Bb7 — 3.3% (354 parties)
Ambassadeurs : Mahmood Lodhi (6x), Bernard, Ryszard (3x), Hansen, Berno (3x), Pena, Alfredo (3x), Trois, Francisco R.T. (2x), Lorenzo Duran, Marcos (2x), Voronin, Alexandr (2x), Atri, Jamshid (2x)
9…exd4 — 3.3% (348 parties)
Ambassadeurs : Perdomo, Leandro (4x), Harandi, Khosro (2x), Fucek, Claudio (2x), Fernandez, Daniel Howard (2x), Silva Rodriguez, Fernando (2x), Wallner, Joachim (2x), Stevanic, David (2x), Burrows, Martin P (2x)
9…Re8 — 1.4% (146 parties)
Ambassadeurs : Lefebr, Vladislav (5x), Poranen, Timo (3x), Maaki, Franti (3x), Akst, Ilia (3x), Turgut, Tansel (3x), Loncarevic, Robert (3x), Blit, Jacques (3x), Ginzburg, Maximiliano (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Bg4 9…Bb7 9…exd4 9…Re8
<1800 533 79% 6% 8% 2%
1800-2200 3235 86% 4% 4% 2%
2200-2600 4791 93% 2% 2% 1%
2600+ 295 98% 1% — —
Évolution par décennie (% des parties)
Décennie N parties 9…Bg4 9…Bb7 9…exd4 9…Re8
1950s 160 92% 1% 3% 1%
1960s 348 94% 1% 2% 0%
1970s 574 93% 2% 2% 0%
1980s 804 94% 3% 1% 1%
1990s 1278 87% 5% 3% 2%
2000s 2950 88% 4% 4% 2%
2010s 3875 91% 3% 3% 1%
2020s 651 87% 3% 5% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Bg4 91% 87% ▼ -3.7%
9…Bb7 3% 3% +0.5%
9…exd4 3% 5% ▲ +1.4%
9…Re8 1% 2% ▲ +1.5%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Carlsen, Magnus — 10 parties
Karpov, Anatoly — 7 parties
Ding, Liren — 6 parties
Kasparov, Garry — 3 parties
Anand, Viswanathan — 3 parties
Hou, Yifan — 2 parties
Kramnik, Vladimir — 1 partie
Parties historiques
9…Bg4 — 89.6% (9536 parties)
1950 — Hess, Ralf E. vs Burghold, C. — 1/2-1/2 — Lucerne SUI
1950 — Bronstein, David I vs Keres, Paul — 1-0 — Budapest HUN
1950 — Petrosian, Tigran V. vs Zagoriansky, Evgeny — 1/2-1/2 — Moscow ch
1950 — Bronstein, Anna vs Keres, Paul Petrovich — 1-0 — Budapest HUN
1950 — Karastoichev, Emil vs Bobotsov, Milko G — 1-0 — Sofia BUL
9…Bb7 — 3.3% (354 parties)
1957 — Padevsky, Nikola vs Filchev, Rusko — 1/2-1/2 — Sofia BUL
1959 — Karastoichev, Emil vs Kostov, Petko — 0-1 — Sofia BUL
1964 — Mazzoni, Guy vs Chaude de Silans, Chantal — 1-0 — Bordeaux op Bordeaux FRA
1964 — Josefsson, Kenneth vs Plato, Bo — 1-0 — Sweden
1968 — Seuss, Oswald vs Basman, Michael J — 0-1 — Bad Aibling GER
9…exd4 — 3.3% (348 parties)
1952 — Szily, Jozsef vs Negyesy, Gyorgy — 1-0 — Hungary ch
1954 — Alenius, Bengt vs Asmundsson, Ingvar — 1-0 — Oslo NOR
1955 — Florian, Jaromir vs Ivan, Imrich — 1/2-1/2 — Prague CZE
1957 — Martius, Ottokar vs Gronau, Paul — 1-0 — Hamburg GER
1959 — Garcia R., Luis Ernesto vs Tanner, Pedro — 1-0 — Buenos Aires ARG
9…Re8 — 1.4% (146 parties)
1958 — Westerinen, Heikki M.J. vs Maki Uuro, Miika — 1/2-1/2 — Mantta FIN
1969 — Parma, Bruno vs Stupica, Janez — 1/2-1/2 — JUG-24ch Novi Travnik
1972 — Ciric, Dragoljub M vs Mujagic, Ramo — 1/2-1/2 — Novi Sad SRB
1987 — Werner, Clemens vs Sonntag, Hans-Hubert — 1/2-1/2 — BL
1987 — Werner, Clemens vs Sonntag, Hans-Hubert — 1/2-1/2 — BL