Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→a6, f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● c5 (3v0)
Cases faibles	—	—
Centre	● e4 (2v1)	● e5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 0)
Bg5	● Bg5 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	3 (● f1, ● a1, ● h1)	4 (● c8, ● f8, ● a8, ● h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre	● Au centre
Droits de roque	O-O / O-O-O	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● e4-e5, ● f4-f5	● …d6-d5, ● …e6-e5

B96i — Sicilian: Najdorf, 7.f4 Nbd7 8.Qe2 Qc7

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nbd7 8.Qe2 Qc7 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. O-O-O (Roi en sécurité côté dame, tour active sur colonne d — 95 % des parties) ; g4 (Attaque à l'aile roi — 3 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...b5 (Expansion aile dame — 74 % des parties) ; ...Be7 (Développer f8 — 24 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
10. Tal Mem 2016 – Round 6.4 – Kramnik, Vladimir – 1-0 – Gelfand, Boris – G24 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. a3 Bb7
1964 Kecskemet zt – Round 1 – Bhend, Edwin – 1/2-1/2 – Bednarski, Jacek – G39 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Qe2 Nbd7 9. g3 Be7 10. O-O-O O-O
1965 Mar del Plata – Round 6 – Stein, Leon Rico – 0-1 – Najdorf, Miguel – G52 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O Be7 10. g4 h6
1967 Cordoba Open – Round 5 – Bronstein, Luis Marcos – 1-0 – Cagliero, Hugo – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Qe2 Nbd7 9. O-O-O b5 10. g4 Bb7
1969 Buenos Aires – Round 6 – Bronstein, Luis Marcos – 1-0 – Fernandez, Ignacio – G36 1. e4 c5 2. Nf3 d6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. g3 Bb7
42. Olympiad 2016 – Round 9.17 – Wei, Yi – 1-0 – Thorsteinsson, Sjurdur – G619 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Qe2 Nbd7 9. O-O-O Be7 10. g4 b5
7. Dos Hermanas Tournament 1995 – Round 4 – Shirov, Alexei – 0-1 – Gelfand, Boris – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. g3 b4
Corus A 2009 – Round 6 – Stellwagen, Daniel – 1/2-1/2 – Van Wely, Loek – G39 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O Be7 10. Nf3 e5
Corus A 2010 – Round 12 – Smeets, Jan – 1-0 – Van Wely, Loek – G75 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. g3 Be7
Corus A 2010 – Round 4 – Ivanchuk, Vasyl – 1-0 – Van Wely, Loek – G23 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. a3 Be7
EU-Cup 24th 2008 – Round 2 – Sutovsky, Emil – 1-0 – Efimenko, Zahar – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. a3 Bb7
FIDE World Cup 2017 – Round 2.3 – Adhiban, B. – 1/2-1/2 – Nepomniachtchi, Ian – G266 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. a3 Bb7
Lindores Abbey Tal Memorial 2021 – Round 12.9 – Maghsoodloo, Parham – 1-0 – Navara, David – G549 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. f4 Qc7 8. Qe2 e6 9. O-O-O b5 10. a3 Be7
Manila Interzonal 1990 – Round 12 – Yudasin, Leonid – 1/2-1/2 – Gelfand, Boris – G196 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. g3 b4
Moskou ch-URS 1973 – Round 1 – Tukmakov, Vladimir B – 1/2-1/2 – Polugaevsky, Lev – G39 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. f5 b4
Qatar Masters Open 2015 – Round 4.15 – Hamdouchi, Hicham – 0-1 – Korobov, Anton – G132 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Qe2 e6 8. f4 Qc7 9. O-O-O Be7 10. Nf3 h6
World Blitz 2017 – Round 8.51 – Khader, Sami – 0-1 – Zhao, Jun – G435 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. f4 Qc7 8. Qe2 e6 9. O-O-O b5 10. g4 Be7
World Blitz 2018 – Round 16.6 – Tsydypov, Zhamsaran – 1-0 – Nepomniachtchi, Ian – G976 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O b5 10. a3 Bb7

B96i — Najdorf (1964)

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nbd7 8.Qe2 Qc7

Les coups candidats

9.O-O-O — 95.0% (1284 parties)

Ambassadeurs : Sherwood, Russell (16x), Sherwood, Helen (16x), Guseinov, Gadir (9x), Simmelink, Joop Theo (8x), Chylik, Rudolf (8x), Avotins, Maigonis (7x), Gerasimov, Vladimir Nikolaevich (7x), Evtushenko, Sergey Aleksandrovich (6x)

9.g4 — 3.3% (44 parties)

Ambassadeurs : Kosintseva, Nadezhda (3x), Jobava, Baadur (2x), Van Riemsdijk, Herman C. (1x), Macedo, Maximo Valerio (1x), Ferreira, Antonio (1x), Beltran Pubill, Albert (1x), Shamkovich, Leonid (1x), Weinstein, Norman (1x)

9.g3 — 0.8% (11 parties)

Ambassadeurs : Tazbir, Marcin (2x), Bhend, Edwin (1x), Bednarski, Jacek (1x), Prie, Eric (1x), Akopian, Vladimir (1x), Dubko, Vladislav Cheslavovich (1x), Akuet Luak (1x), Szoen, Dariusz (1x)

9.f5 — 0.6% (8 parties)

Ambassadeurs : Rajlich, Vasik (1x), Seres, Lajos (1x), Marthandan K U (1x), Poghosyan, Tigran (1x), Perez Lujan, Mateo (1x), Salcedo, Pablo Esteban (1x), Vishnu P (1x), Lu, Shanglei (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.O-O-O	9.g4	9.g3	9.f5
<1800	60	97%	2%	—	2%
1800-2200	476	94%	4%	1%	1%
2200-2600	720	95%	3%	1%	0%
2600+	44	98%	2%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9.O-O-O	9.g4	9.g3	9.f5
1960s	6	83%	—	17%	—
1970s	36	83%	17%	—	—
1980s	20	95%	5%	—	—
1990s	23	91%	4%	4%	—
2000s	138	91%	4%	3%	1%
2010s	849	96%	3%	1%	0%
2020s	279	96%	2%	—	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.O-O-O	96%	96%	+0.1%
9.g4	3%	2%	▼ -1.2%
9.g3	1%	0%	▼ -0.6%
9.f5	0%	1%	▲ +1.1%

Joueurs célèbres

Champions du monde dans cette position

Ju, Wenjun — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

9.O-O-O — 95.0% (1284 parties)

1963 — Bratko, Ivan vs Martinovic, Slobodan — 1/2-1/2 — Dravograd
1965 — Stein, Leonid vs Miguel, Nahuel — 0-1 — Mar del Plata ARG
1967 — Bronstein, Luis Marcos vs Cagliero, Hugo — 1-0 — Cordoba ARG
1968 — Gerasimov, N vs Kaminskij, Sergej — 0-1 — ?
1969 — Bronstein, Luis Marcos vs Fernandez, Ignacio — 1-0 — Buenos Aires ARG

9.g4 — 3.3% (44 parties)

1973 — Kuzmin, Gennadi vs Stean, Michael F — 1-0 — Hastings ENG
1973 — Savon, Vladimir vs Mecking, Henrique — 0-1 — Petropolis izt
1973 — Panchenko, Alexander N vs Beliavsky, Alexander G — 1-0 — Riga LAT
1974 — Van Riemsdijk, Herman C. vs Macedo, Maximo Valerio — 1-0 — Rio de Janeiro BRA
1976 — Shamkovich, Leonid vs Weinstein, Norman — 0-1 — United States tt

9.g3 — 0.8% (11 parties)

1964 — Bhend, Edwin vs Bednarski, Jacek — 1/2-1/2 — Kecskemet HUN
1990 — Prie, Eric vs Akopian, Vladimir — 0-1 — Lyon FRA
2005 — Tazbir, Marcin vs Szoen, Dariusz — 1-0 — Warsaw POL
2006 — Dubko, Vladislav Cheslavovich vs Akuet Luak — 1/2-1/2 — ICCF
2006 — Tazbir, Marcin vs Butkiewicz, Lukasz — 1-0 — Leba POL

9.f5 — 0.6% (8 parties)

2002 — Rajlich, Vasik vs Seres, Lajos — 0-1 — Budapest HUN
2013 — Marthandan K U vs Poghosyan, Tigran — 1-0 — Al Ain
2016 — Perez Lujan, Mateo vs Salcedo, Pablo Esteban — 1/2-1/2 — Cali
2017 — Vishnu P vs Lu, Shanglei — 1-0 — Ho Chi Minh City VIE
2023 — Cong, Dingzhou vs Chu, Wei Chao — 0-1 — Qiziwan CHN

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