B94e - 6…Nbd7 7.f4 - Najdorf (1954)

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B94e — Najdorf (1954)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.f4
Les coups candidats
7…Qc7 — 55.9% (2187 parties)
Ambassadeurs : Wiesinger, Johann (24x), Agathiyan Susil (17x), Milde, Lars (12x), Packroff, Hermann (11x), Böhnke, Hartmut (11x), Cukrowski, Filip (10x), Allawi Rawlings (9x), Tylecek, Drahomir (9x)
7…Qb6 — 11.2% (440 parties)
Ambassadeurs : Tylecek, Drahomir (7x), Gerasimov, Vladimir Nikolaevich (6x), Bangiev, Alexander (5x), Holfelder, Hans-Joachim (4x), Evans, David (4x), Sánchez Huerga, Aser (4x), Milde, Lars (4x), Petkevich, Jusefs (3x)
Ambassadeurs : Lovakovic, Franjo (5x), Vodicka, Milan (4x), Szabo, Zsolt (2x), Sanchez Valles, Jose Maria (2x), Ziebinski, Bartosz (2x), Daulyte-Cornette, Deimante (2x), Vymazal, Bronislav (2x), Meszarosova, Eva (2x)
Ambassadeurs : Jasny, Stanislav (3x), Clares Huanca, Danner Saed (3x), Dobes, Ludek (3x), Genov, Petar (3x), Figueredo Company, Juan José (3x), Quinteros, Miguel A. (2x), Browne, Walter Shawn (2x), Aditya Pola (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Qc7 7…Qb6 7…e6 7…b5
<1800 298 41% 15% 17% 6%
1800-2200 1875 58% 9% 8% 6%
2200-2600 1438 61% 11% 6% 5%
2600+ 41 68% 7% 2% 7%
Évolution par décennie (% des parties)
Décennie N parties 7…Qc7 7…Qb6 7…e6 7…b5
1950s 17 35% 6% 18% 6%
1960s 64 30% 19% 11% 6%
1970s 60 10% 62% 5% 12%
1980s 57 12% 49% 9% 14%
1990s 149 19% 15% 24% 15%
2000s 424 23% 12% 19% 21%
2010s 2514 63% 10% 7% 3%
2020s 628 72% 5% 4% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Qc7 63% 72% ▲ +9.1%
7…Qb6 10% 5% ▼ -4.8%
7…e6 7% 4% ▼ -3.3%
7…b5 3% 1% ▼ -2.1%
Parties historiques
7…Qc7 — 55.9% (2187 parties)
1954 — Barden, Leonard vs Sajtar, Jaroslav — 1/2-1/2 — Amsterdam NED
1956 — Tolush, Alexander vs Gurgenidze, Bukhuti — 1-0 — Erevan ARM
1956 — Bouna, Safwan younes vs Filip, Marius Liviu — 0-1 — Moskou olm
1957 — Burger, Karl vs Popovych, Orest — 0-1 — Cleveland, OH USA
1957 — Pomar Salamanca, Arturo vs Ribera Arnal, Angel — 1-0 — Zaragoza
7…Qb6 — 11.2% (440 parties)
1957 — Kallas, Hans Joachim vs Pakulla, Rudolf — 1-0 — Soemmerda
1961 — Asfora, Eduardo Hasbum vs Mendes, Silvio Luiz Teixeira — 1-0 — ?
1962 — Pelitov, Dimitar vs Radev Iordanov, Nikolay — 0-1 — Sofia BUL
1963 — Pavlov, Mircea-Sergiu-Aurelian vs Kavalek, Lubomir — 1-0 — Halle zt
1963 — Pavlov, Mircea-Sergiu-Aurelian vs Troianescu, Octav — 1-0 — Bucharest ROU
7…e6 — 8.3% (326 parties)
1957 — Beerheide, Walther vs Hantke, Rolf — 1-0 — Brakel
1957 — Bogdanov, Emil vs Kaikamdzozov, Jivko — 1/2-1/2 — Sofia BUL
1959 — Wiesner, Manfred vs Wagner, Franz — 0-1 — Boehlen
1960 — Ghitescu, Theodor vs Kozma, Julius — 0-1 — Marianske Lazne
1960 — Zajic, Jiri vs Jansa, Vlastimil — 0-1 — ?
7…b5 — 5.8% (225 parties)
1957 — Wesselowsky, Deppe vs Beerheide, Walther — 0-1 — ?
1960 — Fernandez, Ruben vs Herrera, Fernando — 1-0 — Azul ch-ARG jr
1960 — Skipic, Mihailo vs Kapustin, Aleksandr — 1-0 — Kagul
1962 — Andreeva, Alena vs Malinova, Natalia — 1-0 — Riga LAT
1965 — Schmidt, Aaron Joel vs Steiner, Lajos — 1-0 — Austria