B90r — Sicilian: Najdorf, 6.Be3 e5 7.Nb3 Be6 8.f3 Be7 9.Qd2 O-O 10.O-O-O Nbd7

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3 Be7 9.Qd2 O-O 10.O-O-O Nbd7 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Attaque sur l'aile roi (g4 dans 98 % des parties).

Atouts. Les Blancs s'appuient sur une majorité de pions à l'aile dame (3 contre 2), un contrôle dominant de d5, un avant-poste en d5, un fou actif en e3 et la colonne semi-ouverte d.

Côté adverse. Le pion arriéré d6.

En contrepartie. Plusieurs pièces dorment encore (le fou f1 et la tour h1).

Plans. g4 (Attaque à l'aile roi — 98 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu sur l'aile dame (...b5 dans 91 % des parties).

Atouts. Les Noirs s'appuient sur un avant-poste en c5, un fou actif en e6 et la colonne semi-ouverte c.

En contrepartie. Le fou e7 reste passif et le pion arriéré d6.

Plans. ...b5 (Expansion aile dame — 91 % des parties) ; ...Qc7 (Pression sur colonne c — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● d6
Chaînes	● g2→f3, f3→e4	● d6→e5, b7→a6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (3v2)	—
Cases faibles	—	—
Centre	● d4 (3v1), ● d5 (3v2), ● e4 (2v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 5)
Be3	● Be3 Actif (mob. 9)
Be6		● Be6 Actif (mob. 6)
Be7		● Be7 Ok (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (● f1, ● h1)	1 (● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● f3-f4	● …d6-d5

Partie
22. ECU Club Cup 2006 – Round 7 – Shirov, Alexei – 1-0 – Areshchenko, Alexander – G181 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
36. Olympiad 2004 – Round 11 – Hracek, Zbynek – 1/2-1/2 – Bu, Xiangzhi – G394 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
36. Olympiad 2004 – Round 13 – Sadvakasov, Darmen – 1/2-1/2 – Dao, Thien Hai – G469 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. Qd2 Be6 9. f3 O-O 10. O-O-O Nbd7
4. Sinquefield Cup 2016 – Round 1.1 – Giri, Anish – 1/2-1/2 – Vachier-Lagrave, Maxime – G1 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bc1 Nf6 8. f3 e5 9. Nb3 Be6 10. Be3 Be7
4. Sinquefield Cup 2016 – Round 3.3 – Topalov, Veselin – 1/2-1/2 – Vachier-Lagrave, Maxime – G13 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bc1 Nf6 8. f3 e5 9. Nb3 Be6 10. Be3 Be7
43. Olympiad 2018 – Round 6.18 – Mchedlishvili, Mikheil – 0-1 – Preotu, Razvan – G377 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
43. Olympiad 2018 – Round 9.1 – So, Wesley – 1/2-1/2 – Wojtaszek, Radoslaw – G560 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
44. GM 2016 – Round 1.3 – Caruana, Fabiano – 0-1 – Vachier-Lagrave, Maxime – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
77. Tata Steel GpA 2015 – Round 12.1 – Saric, Ivan – 1-0 – Wojtaszek, Radoslaw – G50 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
8. Sinquefield Cup 2021 – Round 4.5 – Dominguez Perez, Leinier – 1-0 – Vachier-Lagrave, Maxime – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
8. Sinquefield Cup 2021 – Round 6.1 – Caruana, Fabiano – 1/2-1/2 – Vachier-Lagrave, Maxime – G26 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
8. Tal Memorial 2013 – Round 2.4 – Caruana, Fabiano – 0-1 – Gelfand, Boris – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
9. Sinquefield Cup 2022 – Round 4.1 – Caruana, Fabiano – 1-0 – Vachier-Lagrave, Maxime – G16 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Amber Blindfold 2002 – Round 5 – Almasi, Zoltan – 0-1 – Gelfand, Boris – G8 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Amber Blindfold 2006 – Round 1 – Anand, Viswanathan – 0-1 – Morozevich, Alexander – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Amber Blindfold 2007 – Round 5 – Anand, Viswanathan – 1-0 – Van Wely, Loek – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Be7 9. f3 O-O 10. O-O-O Nbd7
Amber Rapid 2004 – Round 4 – Svidler, Peter – 0-1 – Vallejo Pons, Francisco – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Amber Rapid 2004 – Round 7 – Kramnik, Vladimir – 1-0 – Vallejo Pons, Francisco – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Be7 9. f3 O-O 10. O-O-O Nbd7
Amber Rapid 2005 – Round 10 – Leko, Peter – 1/2-1/2 – Vallejo Pons, Francisco – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be7 8. Be3 O-O 9. Qd2 Be6 10. O-O-O Nbd7
Amber Rapid 2006 – Round 4 – Morozevich, Alexander – 0-1 – Vallejo Pons, Francisco – G18 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be7 8. Be3 Be6 9. Qd2 O-O 10. O-O-O Nbd7
Amber Rapid 2006 – Round 5 – Svidler, Peter – 1-0 – Morozevich, Alexander – G21 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Amber-blindfold 20th 2011 – Round 5 – Topalov, Veselin – 1-0 – Grischuk, Alexander – G13 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Amber-rapid 18th 2009 – Round 7 – Anand, Viswanathan – 1/2-1/2 – Karjakin, Sergey – G21 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Corus 2001 – Round 5 – Tiviakov, Sergei – 0-1 – Morozevich, Alexander – G33 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Corus A 2005 – Round 3 – Leko, Peter – 1-0 – Svidler, Peter – G16 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Corus A 2006 – Round 1 – Karjakin, Sergey – 0-1 – Anand, Viswanathan – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Corus A 2006 – Round 2 – Leko, Peter – 1/2-1/2 – Karjakin, Sergey – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Corus A 2007 – Round 5 – Shirov, Alexei – 0-1 – Van Wely, Loek – G31 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Corus A 2010 – Round 8 – Dominguez Perez, Leinier – 1/2-1/2 – Van Wely, Loek – G50 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 O-O 10. O-O-O Nbd7
FIDE Candidates 2022 – Round 4.2 – Nepomniachtchi, Ian – 1-0 – Firouzja, Alireza – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
FIDE WCh KO 2001 – Round 2.1 – Adams, Michael – 1-0 – Kobalia, Mikhail – G177 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
FIDE WCh KO 2001 – Round 2.1 – Vallejo Pons, Francisco – 0-1 – Sutovsky, Emil – G175 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
KM FIDE GP 2015 – Round 9.5 – Dominguez Perez, Leinier – 1/2-1/2 – Vachier-Lagrave, Maxime – G51 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Levitov Chess Week Rapid 2023 – Round 8.2 – Anand, Viswanathan – 1-0 – Aronian, Levon – G37 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
RUS vs. ROW 2002 – Round 5 – Motylev, Alexander – 0-1 – Gelfand, Boris – G36 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Saint Louis Rapid 2022 – Round 8.4 – Dominguez Perez, Leinier – 1/2-1/2 – Vachier-Lagrave, Maxime – G39 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
SuperUnited Rapid 2023 – Round 7.1 – Saric, Ivan – 0-1 – Nepomniachtchi, Ian – G31 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 O-O 10. O-O-O Nbd7
Supreme Masters 2013 – Round 3.5 – Anand, Viswanathan – 1-0 – Topalov, Veselin – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Tal Memorial 2007 – Round 4 – Leko, Peter – 1/2-1/2 – Alekseev, Evgeny – G16 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 O-O 10. O-O-O Nbd7
Tashkent FIDE GP 2014 – Round 1.4 – Caruana, Fabiano – 0-1 – Vachier-Lagrave, Maxime – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Tashkent FIDE GP 2014 – Round 3.1 – Radjabov, Teimour – 1/2-1/2 – Vachier-Lagrave, Maxime – G13 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Tata Steel , Wijk aan Zee 2013 – Round 9.3 – Leko, Peter – 1/2-1/2 – Anand, Viswanathan – G17 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bc1 Nf6 8. f3 e5 9. Nb3 Be6 10. Be3 Be7
Turin ol (Men) 37th 2006 – Round 4 – Almasi, Zoltan – 1/2-1/2 – Anand, Viswanathan – G55 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
WCh-FIDE 2005 – Round 9 – Svidler, Peter – 1/2-1/2 – Kasimdzhanov, Rustam – G19 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
Wijk aan Zee NED, Tata Steel GpA 2015 – Round 7.1 – Saric, Ivan – 0-1 – Vachier-Lagrave, Maxime – G12 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
World Blitz 2018 – Round 4.20 – Wang, Hao(ZJWZ) – 1-0 – Najer, Evgeniy – G218 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 O-O 9. Qd2 Be6 10. O-O-O Nbd7
World Blitz 2023 – Round 3.14 – Zilka, Stepan – 1/2-1/2 – Nihal Sarin – G146 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 O-O 10. O-O-O Nbd7
World Rapid 2019 – Round 10.54 – Sasikiran, Krishnan – 0-1 – Sakaev, Konstantin – G666 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
World Rapid 2019 – Round 4.61 – Yagupov, Igor – 0-1 – Ganguly, Surya Shekhar – G275 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
World Rapid 2019 – Round 8.38 – Inarkiev, Ernesto – 1/2-1/2 – Sakaev, Konstantin – G523 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
World Rapid 2021 – Round 11.41 – Antipov Olano, Maxim – 1-0 – Gabuzyan, Hovhannes – G655 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7
XXII SuperGM 2005 – Round 6 – Topalov, Veselin – 1-0 – Vallejo Pons, Francisco – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 O-O 10. O-O-O Nbd7

B90r — Najdorf (2001)

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3 Be7 9.Qd2 O-O 10.O-O-O Nbd7

Les coups candidats

11.g4 — 97.8% (13659 parties)

Ambassadeurs : Salzmann, Stefan (132x), Noble, Mark Frederick (104x), Sorcinelli, Andrea (91x), Sherwood, Russell (78x), Krueger, Hilmar (76x), Kraft, Dieter, Dr. (67x), Krüger, Hilmar (62x), Dorer, Manfred (61x)

11.Kb1 — 0.9% (131 parties)

Ambassadeurs : Herzog, Klaus (4x), Almarza Mato, Carlos (4x), Madl, Ildiko (2x), Szalanczi, Emil (2x), Noble, Mark Frederick (2x), Dalhuisen, Tiemen (2x), Alberola, Raphael (2x), Milicev, Nick (1x)

11.a3 — 0.5% (71 parties)

Ambassadeurs : Efremov, Aleksandr Gennadievich (6x), Kireev, Sergey (3x), Vetter, Gerhard (2x), David Androson V (2x), Huerga, Aser (2x), Wurschner, Miroslav (2x), Pessoa, Francisco Azevedo (2x), Riccio, Eros (2x)

11.Qf2 — 0.3% (41 parties)

Ambassadeurs : Lakos, Nikoletta (1x), Li, Ruofan(BJ) (1x), Perez Garcia, Rodney Oscar (1x), Fuentes Dominguez, Felix (1x), Jenal, Juerg (1x), Astengo, Corrado (1x), Shtyrkov, Boris (1x), Tikhanov, Adolf (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	11.g4	11.Kb1	11.a3	11.Qf2
<1800	777	95%	3%	0%	0%
1800-2200	5672	97%	1%	0%	0%
2200-2600	6600	98%	0%	1%	0%
2600+	165	99%	1%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	11.g4	11.Kb1	11.a3	11.Qf2
1970s	6	100%	—	—	—
1980s	9	100%	—	—	—
1990s	70	83%	9%	—	6%
2000s	3261	98%	1%	—	1%
2010s	8565	98%	1%	1%	0%
2020s	2061	98%	1%	1%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
11.g4	98%	98%	-0.3%
11.Kb1	1%	1%	+0.4%
11.a3	1%	1%	-0.1%
11.Qf2	0%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 9 parties
Ju, Wenjun — 2 parties
Hou, Yifan — 2 parties
Kramnik, Vladimir — 1 partie
Carlsen, Magnus — 1 partie
Gukesh D — 1 partie

Parties historiques

11.g4 — 97.8% (13659 parties)

1971 — Byrne, Robert E vs Zuckerman, Bernard — 0-1 — United States of America
1971 — Byrne, Robert E vs Fischer, Robert J — 0-1 — Manhattan blitz
1972 — Byrne, Robert E vs Popovych, Orest — 1/2-1/2 — New York ch-USA
1972 — Dzindzichashvili, Roman vs Rashkovsky, Nukhim N — 1-0 — Baku ch-URS
1977 — Schussler, Harry vs Svensson, Gert 1967 — 1-0 — Sweden

11.Kb1 — 0.9% (131 parties)

1990 — Madl, Ildiko vs Loginov, Valery A — 1-0 — Budapest open
1990 — Madl, Ildiko vs Arbakov, Valentin — 0-1 — Budapest open
1992 — Szalanczi, Emil vs Clares Huanca, Danner Saed — 1-0 — Dortmund open I
1992 — Szalanczi, Emil vs Hertel, Peter — 0-1 — Dortmund open I
1993 — Prie, Eric vs Sobek, Jaroslav — 1-0 — Clichy tt

11.a3 — 0.5% (71 parties)

2010 — Van der Kemp, Michel vs Llorente, Jose Luis — 1-0 — LSS
2010 — Kuhne, Detlev vs Podgursky, Artur — 1/2-1/2 — LSS
2010 — Wilczek, Tadeusz vs Lakatos, Stefan — 1/2-1/2 — ICCF
2011 — Vetter, Gerhard vs Mandviwala, Pervez Godrez — 1-0 — ICCF
2011 — Milde, Lars vs Gutovskyi, Mykola — 0-1 — ICCF

11.Qf2 — 0.3% (41 parties)

1992 — Jenal, Juerg vs Astengo, Corrado — 0-1 — Celle Ligure op
1995 — Lakos, Nikoletta vs Li, Ruofan(BJ) — 1-0 — Brazil Wch U18 girls
1998 — Perez Garcia, Rodney Oscar vs Fuentes Dominguez, Felix — 0-1 — ?
1999 — Shtyrkov, Boris vs Tikhanov, Adolf — 1-0 — St Petersburg RUS
2001 — Brasket, Curt J vs Bassett, David — 0-1 — Los Angeles, CA USA

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