B87e - 8.O-O Be7 9.Qf3 - Sozin-Najdorf [-0.08]

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B87e — Sozin-Najdorf
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3 b5 8.O-O Be7 9.Qf3
Eval: [-0.08]
Les coups candidats
9…Qc7 — 53.8% (2175 parties)
Ambassadeurs : Conterno, Dominique (22x), Sychov, Aleksandr Vitalievi (14x), Garcia, Hamlet Danilo (13x), Vaulin, Alexander P. (11x), Gelfand, Boris (11x), Browne, Walter Shawn (10x), Wojtkiewicz, Aleksander (10x), Lifshitz, Samuel (10x)
9…Qb6 — 41.8% (1688 parties)
Ambassadeurs : Conterno, Dominique (13x), Lifshitz, Samuel (11x), Novikov, Igor (9x), Tomczak, Jacek (9x), Krueger, Hilmar (8x), Sychov, Aleksandr Vitalievi (8x), Sieciechowicz, Marcin (8x), Gelfand, Boris (7x)
9…Bb7 — 2.1% (85 parties)
Ambassadeurs : Lukin, Andrei M (3x), Dobias, Richard (2x), Staikopoulos, Anastasios (2x), Kholmov, Ratmir D (1x), Bobotsov, Milko G (1x), Antoszkiewicz, Gerhard (1x), Neumann, Manfred (1x), Starck, Ines (1x)
9…Ra7 — 1.1% (43 parties)
Ambassadeurs : Sorensen, Jan (3x), Sunye Neto, Jaime (2x), Ortega, Lexy (2x), Kristensen, Kaare Hove (2x), De Souza, Mauro Guimaraes (1x), Veingold, Aleksandr (1x), Borkowski, Franciszek (1x), Mitkov, Nikola (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Qc7 9…Qb6 9…Bb7 9…Ra7
<1800 72 62% 24% 10% 1%
1800-2200 1117 56% 38% 4% 1%
2200-2600 2075 52% 45% 1% 1%
2600+ 65 60% 40% — —
Évolution par décennie (% des parties)
Décennie N parties 9…Qc7 9…Qb6 9…Bb7 9…Ra7
1960s 6 83% — 17% —
1970s 66 52% 44% 2% —
1980s 224 43% 51% 3% 1%
1990s 1008 54% 38% 3% 3%
2000s 1395 61% 36% 2% 1%
2010s 1160 49% 49% 2% 0%
2020s 181 45% 52% 2% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Qc7 49% 45% ▼ -3.5%
9…Qb6 49% 52% ▲ +3.7%
9…Bb7 2% 2% -0.1%
9…Ra7 0% 0% -0.2%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 8 parties
Anand, Viswanathan — 4 parties
Ju, Wenjun — 2 parties
Tal, Mikhail — 1 partie
Hou, Yifan — 1 partie
Parties historiques
9…Qc7 — 53.8% (2175 parties)
1960 — Fischer, Robert J vs Olafsson, Fridrik — 1/2-1/2 — Buenos Aires ARG
1962 — Vasiukov, Evgeni vs Raetsch, Heinz — 1-0 — Lasker mem Berlin-Ost
1968 — Wegener, Hans Karl vs Schmaus, Alexandru — 0-1 — corr FRG/K
1969 — Vasiukov, Evgeni vs Polugaevsky, Lev — 1/2-1/2 — Moskou ch-URS
1969 — Davidian, J vs Browne, Walter Shawn — 1-0 — Santa Monica, CA USA
9…Qb6 — 41.8% (1688 parties)
1971 — Aburto Ramirez, Oscar Eduardo vs Kavalek, Lubomir — 0-1 — USA-72ch Ventura
1972 — Browne, Walter Shawn vs Benko, Pal — 1-0 — Malaga ESP
1972 — Bronstein, David I vs Andersson, Ulf — 1/2-1/2 — Las Palmas ESP
1973 — Mestel, A Jonathan vs Pinter, Jozsef — 1-0 — Groningen NED
1973 — Soltis, Andrew vs Kaufman, Lawrence — 0-1 — USA it Chicago, IL USA
9…Bb7 — 2.1% (85 parties)
1963 — Kholmov, Ratmir D vs Bobotsov, Milko G — 1/2-1/2 — Sochi RUS
1978 — Antoszkiewicz, Gerhard vs Neumann, Manfred — 1-0 — DDR-ch10 sf04 corr
1984 — Miedzinski, Kuba vs Brustman, Agnieszka — 0-1 — Poznan POL
1985 — Dagenais, Wilfrid vs Veltmann, Martin — 1/2-1/2 — Smith Falls CAN
1986 — Miagkov, J. vs Szczepaniak, Artur — 1-0 — corr Baltic tt
9…Ra7 — 1.1% (43 parties)
1988 — Veingold, Aleksandr vs Borkowski, Franciszek — 0-1 — St John
1989 — De Souza, Mauro Guimaraes vs Sunye Neto, Jaime — 0-1 — BRA-ch Fortaleza BRA
1990 — Akimov, Petr Ivanovich vs Cutillas Ripoll, Pascual — 1-0 — ?
1990 — Henao, Raul Fernando vs Verduga Zavala, Denis — 0-1 — Santa Clara CUB
1991 — Mitkov, Nikola vs Cvitan, Ognjen — 0-1 — Hartberg AUT