B99m - 10.g4 - Najdorf, Main Line (1964)

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B99m — Najdorf, Main Line (1964)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.O-O-O Nbd7 10.g4
Les coups candidats
Ambassadeurs : Clement, Guy (34x), Browne, Walter Shawn (26x), Maeder, Karl-Heinz (24x), Adamski, Robert (20x), De Firmian, Nick (18x), Abreu, Marcio Marques (18x), Kover, Warner Bruce Prof Dr (15x), Wurschner, Miroslav (15x)
Ambassadeurs : Czuchnicki, Adam (9x), Kempinski, Robert (8x), Tomczak, Rafal (7x), Jedlicka, Ales (6x), Chlost, Marlena (6x), Pallas, Sebastian (6x), Petukhov, Viktor Stepanovich (5x), Kokarev, Dmitry (5x)
10…O-O — 1.8% (182 parties)
Ambassadeurs : Jakubowski, Krzysztof (9x), Bekker-Jensen, David (7x), Bekker-Jensen, Simon (4x), Lacroix, Serge (3x), St Amand, Paul Jr (3x), Jedlicka, Ales (3x), Saint-Amand, Paul (3x), Scheckenbach, Franz (3x)
10…Rb8 — 1.0% (105 parties)
Ambassadeurs : Jakubowski, Krzysztof (3x), Ftacnik, Lubomir (2x), Garcia Torres, Siro (2x), Virkud, Apurva (2x), Yip, Carissa (2x), Jimenez Zerquera, Eleazar (1x), Black, Colin (1x), Serwinski, Benedykt (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10…b5 10…h6 10…O-O 10…Rb8
<1800 627 79% 14% 3% 1%
1800-2200 4463 82% 14% 2% 1%
2200-2600 2846 80% 16% 2% 1%
2600+ 34 79% 21% — —
Évolution par décennie (% des parties)
Décennie N parties 10…b5 10…h6 10…O-O 10…Rb8
1950s 28 86% 14% — —
1960s 267 93% 3% 2% 1%
1970s 473 93% 4% 1% 1%
1980s 673 94% 4% 1% 1%
1990s 2031 93% 3% 1% 1%
2000s 3092 85% 10% 2% 1%
2010s 2742 79% 16% 2% 2%
2020s 1025 60% 37% 1% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10…b5 79% 60% ▼ -19.1%
10…h6 16% 37% ▲ +21.3%
10…O-O 2% 1% ▼ -0.8%
10…Rb8 2% 1% ▼ -1.2%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 6 parties
Anand, Viswanathan — 2 parties
Tal, Mikhail — 1 partie
Parties historiques
10…b5 — 84.0% (8680 parties)
1955 — Shagalovich, Abo vs Chukaev, Egor — 1-0 — URS-ch sf Vilnius LTU
1955 — Van den Berg, Carel B vs Ujtelky, Maximilián Samuel Rudolf — 1-0 — Rotterdam NLD-CSR
1956 — Kotkov, Yuri M vs Shamkovich, Leonid — 1-0 — Kislovodsk
1957 — Suetin, Alexey S vs Alexander Tadala — 1/2-1/2 — Leningrad RUS
1957 — Vukcevich, Milan vs Ivkov, Borislav — 1/2-1/2 — Sombor
10…h6 — 12.3% (1273 parties)
1956 — Isain, Pedros Santos vs Cantero, Ronaldo — 1/2-1/2 — Montevideo URU
1956 — Aperador Rubio, Ricardo vs Miguel, Nahuel — 0-1 — Montevideo URU
1957 — Clark, Ralph vs Ramirez, Gilbert — 0-1 — San Francisco, CA USA
1958 — Bouna, Safwan younes vs Ojanen, Kaarle S — 0-1 — Munich GER
1960 — Johansson, Martin 1979 vs Abir Chinmay Sapre — 1/2-1/2 — Leipzig ol fin-B
10…O-O — 1.8% (182 parties)
1961 — Dimitrov Iliev, Ilia vs Ajanski, Jordan S — 1/2-1/2 — Sofia BUL
1962 — Humerez Estrada, Cidar vs Colon Romero, Miguel — 1-0 — Mar del Plata ARG
1962 — Humerez vs Black, Colin — 1-0 — Mar del Plata ARG
1965 — Suta, Mihai vs Partos, Charles — 1/2-1/2 — Bucharest ROU
1966 — Gaprindashvili, Nona vs Beni, Alfred — 1-0 — It II Beverwijk NED
10…Rb8 — 1.0% (105 parties)
1962 — Jimenez Zerquera, Eleazar vs Black, Colin — 1-0 — Mar del Plata Latin
1969 — Serwinski, Benedykt vs Gasiorowski, Ryszard — 0-1 — Lublin POL
1974 — Garcia, Gildardo vs Miranda D Ettore, Adrian — 1-0 — San Juan
1975 — Goni, Roberto vs Garcia, Adilado — 1/2-1/2 — Pinamar ARG
1976 — Numata, Takeshi vs Wong, Sheldon — 0-1 — Caracas VEN