B99f - 10.Bd3 - Najdorf, Main Line (1966)

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B99f — Najdorf, Main Line (1966)
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.Bd3
Les coups candidats
Ambassadeurs : Hansen, Lars-Henrik Bech (7x), De Firmian, Nick (5x), Hamann, Svend (4x), Messing, Hrvoje (4x), Weng, Annegret, Dr. (4x), Navara, David (4x), Fischer, Robert J (3x), Medunova, Vera (3x)
Ambassadeurs : Browne, Walter Shawn (15x), Bukic, Enver (7x), Potter, Albert John (7x), Timman, Jan H (6x), Savon, Vladimir (6x), Berg, Michael E (5x), Gruenfeld, Yehuda (5x), Grefe, John A (4x)
10…Nc5 — 3.0% (95 parties)
Ambassadeurs : Oll, Lembit (2x), Ehlvest, Jaan (2x), Bierwisch, Bernhard (2x), Habermann, Arno (2x), Jimenez Zerquera, Eleazar (1x), Belkadi, Ridha (1x), Jaenig, Reinhard (1x), Neurohr, Stephan (1x)
10…O-O — 2.6% (82 parties)
Ambassadeurs : Kakuk, Sandor (2x), Dao, Thien Hai (2x), Keene, Raymond D (1x), Sugden, John N (1x), Spurgeon, RE. (1x), Mahdavi, MR. (1x), Angioni, Gian Carlo (1x), Angelis, Mihail (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10…b5 10…h6 10…Nc5 10…O-O
<1800 178 51% 33% 7% 5%
1800-2200 1360 52% 39% 4% 4%
2200-2600 873 38% 58% 1% 1%
2600+ 15 13% 87% — —
Évolution par décennie (% des parties)
Décennie N parties 10…b5 10…h6 10…Nc5 10…O-O
1950s 11 82% 9% — —
1960s 20 60% 30% 5% 5%
1970s 375 41% 56% 0% 1%
1980s 378 39% 52% 5% 2%
1990s 453 51% 40% 4% 3%
2000s 866 50% 44% 3% 2%
2010s 802 45% 45% 3% 4%
2020s 244 60% 35% 2% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10…b5 45% 60% ▲ +15.2%
10…h6 45% 35% ▼ -10.1%
10…Nc5 3% 2% ▼ -1.9%
10…O-O 4% 2% ▼ -2.3%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Parties historiques
10…b5 — 47.3% (1489 parties)
1955 — Franz Zabbai vs Gatto, Claudio — 1/2-1/2 — EU/M/481
1957 — Ragozin, Viacheslav vs Spassky, Boris V. — 0-1 — Leningrad RUS
1957 — Mikenas, Vladas vs Aronin, Lev — 0-1 — Moskou ch-URS
1958 — Fuller, John Arthur vs Horseman, Derek Geoffrey — 1-0 — Leamington
1958 — Paoli, Enrico vs Alexander Tadala — 0-1 — Balatonfured
10…h6 — 45.1% (1421 parties)
1957 — Bogdanov, Emil vs Kaikamdzozov, Jivko — 1/2-1/2 — Sofia BUL
1960 — Angles d'Auriac, Bernard vs De Oliveira Rodrigue, Daniel — 0-1 — Leipzig GER
1960 — Angles d'Auriac, Bernard vs Oliveira, x — 0-1 — Leipzig GER
1960 — Chipev, Teodor vs Dimitrov, Krastjo — 1-0 — BUL-ch14 Sofia BUL
1960 — Angles d'Auriac, Bernard vs Barreto De Oliveira, Davi Castel — 0-1 — Leipzig olm
10…Nc5 — 3.0% (95 parties)
1966 — Jimenez Zerquera, Eleazar vs Belkadi, Ridha — 1-0 — Havana CUB
1972 — Silva, Fernando vs Vasquez, Julio E — 1/2-1/2 — Sao Paulo BRA
1983 — Santos Garcia, Fernando vs Munoz Garcia, Eduardo — 1-0 — Valladolid
1984 — Ernst, Thomas vs Kheir, Amir Hosein — 1-0 — Thessaloniki olm
1984 — Duijs, Peter vs Verhagen, Ad — 0-1 — Alkmaar open
10…O-O — 2.6% (82 parties)
1960 — Keene, Raymond D vs Sugden, John N — 1-0 — ?
1972 — Spurgeon, RE. vs Mahdavi, MR. — 1-0 — Barnstaple
1974 — Nielsen, Ole vs Hansen, Berno — 1-0 — Randers DEN
1981 — Angioni, Gian Carlo vs Angelis, Mihail — 1-0 — corr Italy
1984 — Sampedro vs Aksh Gogi — 1-0 — Bercina