B49e - 7…Nf6 8.a3 Be7 9.O-O - Taimanov

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B49e — Taimanov
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.a3 Be7 9.O-O
Les coups candidats
9…O-O — 77.8% (847 parties)
Ambassadeurs : Tal, Mikhail (4x), Zhang, Henry (4x), Jansa, Vlastimil (3x), Matulovic, Milan (3x), Fogarasi, Tibor (3x), Huynh Lam Binh Nguyen (3x), Khanin, Semen (3x), Krajnik, Richard (3x)
9…d6 — 14.1% (154 parties)
Ambassadeurs : Geissert, Eberhard (2x), Maedler, Juergen, Dr. (2x), Nuenchert, Eveline (2x), Perez Guijarro, Eduardo (2x), Muratovic, Alija (2x), Sheikh, Anum (2x), Alekhine, Alexander (1x), Igea Perez, Alfonso (1x)
9…b5 — 4.7% (51 parties)
Ambassadeurs : De Lima, Carlos Alexandre (2x), Magallanes, Gustavo (2x), Chen, Max (2x), Andrews, B Peter A (1x), Wheeler, George W (1x), Schepel, Kaarlo (1x), Ardiansyah, Haji (1x), Avila, Luz (1x)
9…Ne5 — 1.5% (16 parties)
Ambassadeurs : Hennings, Artur (2x), Maedler, Juergen, Dr. (2x), Marotti, Davide (1x), Vecsey, Zoltan (1x), Martens, Marcus (1x), Van de Griendt, Jan Willem (1x), Chaves, Joara (1x), Bonfim, Regina Rodrigues (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…O-O 9…d6 9…b5 9…Ne5
<1800 78 73% 15% 8% 3%
1800-2200 500 78% 12% 6% 1%
2200-2600 254 81% 15% 2% 2%
2600+ 3 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 9…O-O 9…d6 9…b5 9…Ne5
1880s 1 100% — — —
1920s 5 40% 40% — 20%
1940s 1 — — — —
1950s 5 100% — — —
1960s 47 72% 23% — 4%
1970s 28 71% 25% 4% —
1980s 26 69% 19% 4% 4%
1990s 147 78% 18% 2% 1%
2000s 299 74% 14% 8% 1%
2010s 420 80% 11% 5% 2%
2020s 110 85% 14% 1% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…O-O 80% 85% ▲ +4.1%
9…d6 11% 14% ▲ +2.7%
9…b5 5% 1% ▼ -3.9%
9…Ne5 2% 0% ▼ -1.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 4 parties
Alekhine, Alexander — 2 parties
Parties historiques
9…O-O — 77.8% (847 parties)
1886 — Van Foreest, Arnold vs Messemaker, Christiaan — 1/2-1/2 — Utrecht NED
1921 — Cernovsky, Akonzult vs Spielmann, Rudolf — 1-0 — Moravska Ostrava
1922 — Cenni, Giovanni vs Voellmy, Erwin — 1-0 — Milan ITA
1957 — Khadshipetrov, Alexander Mateev vs Bogdanov, Emil — 0-1 — Sofia BUL
1959 — Pilnik, Herman vs De Souza Mendes, Joao — 1/2-1/2 — Santiago CHI
9…d6 — 14.1% (154 parties)
1926 — Von Holzhausen, Walther vs Antze, Oskar — 1-0 — Hannover GER
1929 — Alekhine, Alexander vs Igea Perez, Alfonso — 0-1 — Mexico sim Mexico City MEX
1961 — Falconer, Neil E vs Grant, Kenneth — 1-0 — San Francisco, CA USA
1963 — Geissert, Eberhard vs Maedler, Juergen, Dr. — 0-1 — ?
1963 — Nedeljkovic, Aleksandar vs Janosevic, Dragoljub — 1-0 — Belgrade SRB
9…b5 — 4.7% (51 parties)
1977 — Andrews, B Peter A vs Wheeler, George W — 0-1 — Cheltenham
1989 — Schepel, Kaarlo vs Ardiansyah, Haji — 0-1 — Genting Highlands MAS
1991 — Guy, Gregoire vs St. Pierre, Benoit — 0-1 — Montreal CAN
1997 — Avila, Luz vs Cuartas, Maria Teresa — 1-0 — Empresa de Telecom Women
1999 — Calzolari, Stephane vs Perez, Flavio — 1-0 — Montpellier FRA
9…Ne5 — 1.5% (16 parties)
1923 — Marotti, Davide vs Vecsey, Zoltan — 1/2-1/2 — Trieste
1963 — Hennings, Artur vs Maedler, Juergen, Dr. — 1/2-1/2 — ?
1963 — Hennings, Artur vs Maedler, Juergen, Dr. — 1/2-1/2 — Aschersleben GER
1987 — Martens, Marcus vs Van de Griendt, Jan Willem — 1-0 — Amsterdam jr
1995 — Chaves, Joara vs Bonfim, Regina Rodrigues — 0-1 — Partida