B49f - 7…Nf6 8.O-O b5 [+0.48]

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B49f —
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.O-O b5
Eval: [+0.48]
Les coups candidats
9.Nxc6 — 51.0% (519 parties)
Ambassadeurs : Matulovic, Milan (5x), Palac, Mladen (4x), Granda Zuniga, Julio E (4x), Stripunsky, Alexander (3x), Reshetnikov, Alexander (3x), Vokhidov, Shamsiddin (3x), Kurajica, Bojan (2x), Unzicker, Wolfgang (2x)
9.a3 — 35.5% (361 parties)
Ambassadeurs : Ladron De Guevara Pinto, Miguel (3x), From, Sigfred (2x), Holmsten, Aleksei (2x), S. Nabeela Farheen (2x), Jia, Haoxiang (2x), Rachwalski, Andrzej (2x), Jaworowski, Andre (2x), Wageih, Kareim (2x)
9.f4 — 6.8% (69 parties)
Ambassadeurs : Shahade, Gregory (2x), Richter, Kurt (1x), Gilg, Karl (1x), Hjartarson, Johann (1x), Angantysson, Haukur (1x), Widmann, Ru (1x), Lenz, Thomas (1x), Fernandez Vizan, JF. (1x)
9.Bf3 — 3.3% (34 parties)
Ambassadeurs : Leonhardt, Paul (1x), Rubinstein, Akiba (1x), Diaz Quejada, Ricardo (1x), Santacruz, Francisco (1x), Bedros, Jacques (1x), Haik, Aldo (1x), Fier, Alexandr (1x), Meszaros, Michal (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9.Nxc6 9.a3 9.f4 9.Bf3
<1800 20 30% 45% 15% 5%
1800-2200 431 43% 42% 7% 4%
2200-2600 405 62% 26% 6% 2%
2600+ 1 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 9.Nxc6 9.a3 9.f4 9.Bf3
1900s 2 50% — — 50%
1910s 1 — 100% — —
1920s 2 50% 50% — —
1930s 3 67% — — —
1940s 1 — — 100% —
1950s 8 62% 38% — —
1960s 28 71% 25% — —
1970s 30 57% 33% 7% 3%
1980s 28 46% 36% 11% 4%
1990s 104 52% 38% 5% 4%
2000s 349 47% 36% 9% 4%
2010s 391 52% 35% 6% 2%
2020s 71 51% 41% 4% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.Nxc6 52% 51% ▼ -1.7%
9.a3 35% 41% ▲ +6.1%
9.f4 6% 4% ▼ -1.9%
9.Bf3 2% 4% ▲ +1.9%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 1 partie
Parties historiques
9.Nxc6 — 51.0% (519 parties)
1907 — Van Vliet, Lodewijk vs Bernstein, Olivia — 1-0 — Ostende II
1922 — Emmrich, K. vs Moritz, Bruno — 1/2-1/2 — Bad Oeynhausen m
1932 — Bellod Thomas, Gonzalo vs Steiner, Laszlo — 1-0 — Hastings ENG
1938 — Spielmann, Rudolf vs Landau, Salo — 1/2-1/2 — Amsterdam NED
1955 — Burstein, Almog vs Ciocaltea, Victor — 1/2-1/2 — Bucharest ROU
9.a3 — 35.5% (361 parties)
1912 — Olland, Adolf George vs Sjoberg, Victor — 1-0 — Stockholm SWE
1924 — Master Walter Aira vs Havasi, Kornel — 1-0 — Gyor
1955 — Spassky, Boris Vasily vs Aarland, Stein Arild — 1/2-1/2 — Moskou ch-URS
1956 — Sefc, Jan vs Zíta, František — 1/2-1/2 — Podebrady CZE
1959 — Eretova, Kveta vs Zvorykina, Kira — 0-1 — Plovdiv BUL
9.f4 — 6.8% (69 parties)
1940 — Richter, Kurt vs Gilg, Karl — 1-0 — Krakow POL
1973 — Luckans Ilmars vs Karasev, Vladimir I — 0-1 — Daugavpils LAT
1979 — Hjartarson, Johann vs Angantysson, Haukur — 0-1 — ISL-ch Reykjavik ISL
1982 — D`Arruda, Ricardo D. vs Mavrich, Rolando — 1-0 — ARG-ch sf Buenos Aires ARG
1987 — Widmann, Ru vs Lenz, Thomas — 0-1 — Dortmund open
9.Bf3 — 3.3% (34 parties)
1905 — Leonhardt, Paul vs Rubinstein, Akiba — 1/2-1/2 — Ostende
1972 — Bedros, Jacques vs Haik, Aldo — 0-1 — Skopje ol (Men) fin-D
1989 — Diaz Quejada, Ricardo vs Santacruz, Francisco — 1/2-1/2 — Asuncion PAR
1995 — Schweigert, Werner vs Baur, Volker, Dr. — 1/2-1/2 — German Ych-U13
1996 — Kromhout, Ewan vs Paraskevopoulos, Alexandros — 1-0 — South Africa Open