C92a - 9…* - Closed (1902)

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C92a — Closed (1902)
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.h3
Les coups candidats
Ambassadeurs : Zielinski, Sergej (284x), Romanishin, Oleg M (170x), Szabo, Vilmos (119x), Ivkov, Borislav (90x), Klovans, Janis (70x), Matanovic, Aleksandar (68x), Sherwood, Russell (66x), Tal, Mikhail (65x)
Ambassadeurs : ? (52x), Matanovic, Aleksandar (48x), Spassky, Boris Vasily (48x), Johansen, Anders S. (47x), Sasikiran, Krishnan (47x), Beliavsky, Alexander G (46x), Klewe, Wolfgang (44x), Sherwood, Russell (43x)
Ambassadeurs : Langer, Raimund (183x), Karpov, Anatoly (86x), Schwetlick, Thomas (64x), Kovacs, Arthur Dr. (53x), Klovans, Janis (46x), Beliavsky, Alexander G (45x), Adeyemi, Phebe Adesinuola (45x), Ivanov, Alexander (43x)
Ambassadeurs : Flecher, Joseph (92x), Geller, Efim P. (46x), Gligorić, Svetozar (40x), Matanovic, Aleksandar (34x), De Coverly, Roger D (28x), ? (24x), Parma, Bruno (23x), Tal, Mikhail (20x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Na5 9…Nb8 9…Bb7 9…h6
<1800 3644 48% 18% 22% 4%
1800-2200 26528 47% 22% 21% 3%
2200-2600 32954 37% 26% 22% 3%
2600+ 2135 25% 31% 22% 2%
Évolution par décennie (% des parties)
Décennie N parties 9…Na5 9…Nb8 9…Bb7 9…h6
1950s 1064 74% 7% 3% 0%
1960s 2699 52% 16% 2% 18%
1970s 2842 40% 31% 6% 15%
1980s 4247 36% 19% 26% 5%
1990s 8672 37% 14% 26% 6%
2000s 19870 52% 15% 21% 3%
2010s 31454 41% 29% 21% 2%
2020s 7110 29% 32% 26% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Na5 41% 29% ▼ -11.3%
9…Nb8 29% 32% ▲ +3.3%
9…Bb7 21% 26% ▲ +4.5%
9…h6 2% 3% +0.3%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Botvinnik, Mikhail — 10 parties
Smyslov, Vladimir — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Hou, Yifan — 10 parties
Carlsen, Magnus — 10 parties
Ding, Liren — 10 parties
Karpov, Aleksandr — 5 parties
Lasker, Emanuel — 1 partie
Fischer, Robert James — 1 partie
Smyslov, Vassily — 1 partie
Gukesh D — 1 partie
Parties historiques
9…Na5 — 42.6% (33224 parties)
1950 — Geller, Efim P. vs Panov, Vasily — 1-0 — Kiev UKR
1950 — Van't Veer, P. vs Purdy, Cecil J S — 0-1 — corr Wch1
1950 — Aronin, Lev vs Alexander Tadala — 1-0 — Moskou ch-URS
1950 — Aronin, Lev vs Averbakh, Yuri L — 1/2-1/2 — Moskou ch-URS
1950 — Malchev, Andrej vs Tsvetkov, Alexandar K — 0-1 — Sofia BUL
9…Nb8 — 22.7% (17696 parties)
1954 — Aronson, Lev vs Furman, Semyon — 1/2-1/2 — URS-ch sf Leningrad RUS
1954 — Bannik, Anatolij vs Koval, Valentin — 0-1 — Ukraine
1954 — Zagorovsky, Vladimir vs Borisenko, Georgy K — 0-1 — Gorki ch22-SU sf
1954 — Rudenko, Ludmila vs Borisenko-Belova, Valentina — 1-0 — Riga LAT
1955 — Averbakh, Yuri L vs Taimanov, Mark — 1/2-1/2 — Voroshilovgrad
9…Bb7 — 20.8% (16205 parties)
1952 — Pachman, Ludek vs Geller, Efim P. — 1/2-1/2 — Saltsjobaden SWE
1953 — Byvshev, Vasily vs Bonch-Osmolovsky, Mikhail — 1-0 — Leningrad RUS
1954 — Byvshev, Vasily vs Lilienthal, Andor — 1-0 — Kiev ch-URS
1955 — Efimov, Kondrat vs Klaman, Konstantin Mikhailovich — 0-1 — Leningrad RUS
1955 — Bogdanovic, Rajko vs Persitz, Raaphi — 1-0 — Ljubljana
9…h6 — 4.1% (3181 parties)
1954 — Yudovich, Mikhail M vs Zagorovsky, Vladimir — 1-0 — URS-ch sf Gorky
1954 — Suetin, Alexey S vs Averbakh, Yuri L — 1-0 — Riga LAT
1958 — Bhend, Edwin vs Weltjens, Leon — 1-0 — Munich GER
1960 — Prahov, Valentin vs Kolarov, Atanas S. — 1/2-1/2 — ?
1961 — Geller, Efim P. vs Tal, Mikhail — 1/2-1/2 — Moscow USSR Team ch