E11h — Bogo-Indian: 4.Bd2 Be7 5.g3 d5 6.Bg2 O-O 7.O-O c6

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Be7 5.g3 d5 6.Bg2 O-O 7.O-O c6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte f4….

Atouts. Les Blancs s'appuient sur les cases fortes f4, e5 et g5, un fou actif en d2 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nc3 (Développer Nb1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e4.

Atouts. Les Noirs s'appuient sur la case forte e4, un fou actif en e7 et la paire de fous.

Côté adverse. Le fou enfermé en g2, le roi resté au centre et une pièce en prise (le pion en c4).

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)) ; ...Nbd7 (Développer Nb8) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v0), ● g5 (2v0)	● e4 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (2v0)	● d5 (3v1), ● e4 (2v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bd2	● Bd2 Actif (mob. 8)
Bg2	● Bg2 Enfermé (mob. 2)
Be7		● Be7 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5	● …e6-e5

Partie
11. Tal Mem Blitz 2018 – Round 1.6 – Fedoseev, Vladimir – 0-1 – Gelfand, Boris – G6 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. a4 a5 9. Bc3 b6 10. Nbd2 Na6
19. Amber Blindfold 2010 – Round 11 – Gelfand, Boris – 1/2-1/2 – Ivanchuk, Vasyl – G34 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 dxc4 9. Ne5 b5 10. Nxc6 Nxc6
19. Amber Rapid 2010 – Round 3 – Gelfand, Boris – 1/2-1/2 – Grischuk, Alexander – G8 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 dxc4 10. e4 Nh5
1950 Moskou ch-URS – Round ? – Tolush, Alexander – 1-0 – Averbakh, Yuri L – G145 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Nc3 Nbd7 9. Bf4 Nh5 10. c5 Nxf4
2. Du Te Cup 2018 – Round 6.3 – Wojtaszek, Radoslaw – 1/2-1/2 – Yu, Yangyi – G18 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 b6 9. Nc3 Bb7 10. Rfd1 Nbd7
36. Olympiad 2004 – Round 12 – Ivanchuk, Vasyl – 1/2-1/2 – Macieja, Bartlomiej – G415 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Bf4 Nbd7 9. Qb3 b6 10. Nc3 Nh5
36. Olympiad 2004 – Round 13 – Ponomariov, Ruslan – 1/2-1/2 – Azmaiparashvili, Zurab – G451 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. d4 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 Nbd7 9. Rc1 Ne4 10. Be3 Nd6 1/2-1/2
36. Olympiad 2004 – Round 4 – Gelfand, Boris – 1-0 – Georgiev, Kiril – G109 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 dxc4 10. e4 a5
40. Olympiad Open 2012 – Round 4.2 – Kramnik, Vladimir – 1/2-1/2 – Wang, Hao(ZJWZ) – G243 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Ba6 10. cxd5 cxd5
43. Olympiad 2018 – Round 7.6 – Sargissian, Gabriel – 1-0 – Zhigalko, Sergei – G484 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 b6 9. Nc3 Bb7 10. Rfd1 Nbd7
6. World Blitz 2010 – Round 15.7 – Aronian, Levon – 0-1 – Kramnik, Vladimir – G106 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Nbd7 10. Rc1 Nh5
7. World Team Championship 2010 – Round 1 – Postny, Evgeny – 1-0 – Abdel Razik, Khaled – G5 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Bb7 10. Rc1 Na6
7. World Team Championship 2010 – Round 4 – Aronian, Levon – 1-0 – Vescovi, Giovanni – G59 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Bb7 10. Rc1 Nbd7
7. World Team Championship 2010 – Round 9 – Gelfand, Boris – 1/2-1/2 – Grischuk, Alexander – G145 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 dxc4 10. e4 Re8
74. Tata Steel GMA 2012 – Round 11 – Ivanchuk, Vasyl – 0-1 – Gelfand, Boris – G73 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 Nbd7 9. Rc1 b6 10. cxd5 cxd5
78. Tata Steel GpA 2016 – Round 11.6 – Tomashevsky, Evgeny – 0-1 – Ding, Liren – G76 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 dxc4 10. e4 Re8
79. Tata Steel GpA 2017 – Round 8.2 – Aronian, Levon – 1-0 – Giri, Anish – G51 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Na3 Nbd7 9. Rc1 Ne4 10. Be3 Bxa3
Amber Blindfold 2002 – Round 5 – Bareev, Evgeny – 0-1 – Shirov, Alexei – G7 1. c4 e6 2. d4 d5 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 Nbd7 9. Bb4 Bxb4 10. Qxb4 a5
Amber Blindfold 2007 – Round 3 – Gelfand, Boris – 1-0 – Aronian, Levon – G9 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nf3 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Bb7 10. Rc1 Nh5
Amber Rapid 2007 – Round 2 – Leko, Peter – 0-1 – Aronian, Levon – G5 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Bb7 10. Rc1 Nh5
Amber Rapidplay 2000 – Round 1 – Ivanchuk, Vasyl – 1/2-1/2 – Topalov, Veselin – G2 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 b6 9. Nc3 Nbd7 10. Rac1 Ba6
Brussels blitz 1987 – Round 1 – Sosonko, Gennadi – 1/2-1/2 – Karpov, Anatoly – G29 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nf3 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Ba6 10. cxd5 cxd5
Bugojno 1982 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Polugaevsky, Lev – G63 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 b6 9. Nc3 Bb7 10. Rac1 Nbd7
Dortmund 1997 – Round 5 – Huebner, Robert – 1/2-1/2 – Kramnik, Vladimir – G18 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. b3 b6 9. Bc3 Bb7 10. Nbd2 Nbd7
Dortmund 2005 – Round 3 – Kramnik, Vladimir – 1-0 – Topalov, Veselin – G5 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Ba6 10. cxd5 cxd5
EU Team Ch Plovdiv 1983 – Round 2 – Sosonko, Gennadi – 1/2-1/2 – Polugaevsky, Lev – G5 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nf3 O-O 7. O-O c6 8. Qb3 b6 9. Nc3 Bb7 10. Rac1 Nbd7
EU-Cup 24th 2008 – Round 5 – Eljanov, Pavel – 1/2-1/2 – Alekseev, Evgeny – G43 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Bb7 10. b3 Nbd7
European Club Cup 2015 – Round 5.2 – Tomashevsky, Evgeny – 1/2-1/2 – Karjakin, Sergey – G89 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Bf4 dxc4 9. Ne5 Nd5 10. Nxc4 Nxf4
FIDE Candidates 2018 – Round 1.4 – Caruana, Fabiano – 1-0 – So, Wesley – G4 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Qb3 Nbd7 9. Bf4 a5 10. Rd1 Nh5
FIDE Candidates 2018 – Round 9.2 – Caruana, Fabiano – 1/2-1/2 – Ding, Liren – G34 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Qb3 b6 9. Nc3 Ba6 10. cxd5 cxd5
FIDE World Cup 2017 – Round 1.3 – Vallejo Pons, Francisco – 1-0 – Karthikeyan, Murali – G131 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Bb7 10. Ne5 Nbd7
FIDE-Wch k.o. 1997 – Round 5.2 – Krasenkow, Michal – 0-1 – Short, Nigel D – G173 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Qb3 Nbd7 9. Bg5 b6 10. Re1 Bb7
Lindores Abbey Tal Memorial 2021 – Round 14.1 – Erigaisi Arjun – 1-0 – Xiong, Jeffery – G590 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nf3 O-O 7. O-O c6 8. Bc3 Ne4 9. Nbd2 Nd6 10. b3 b6
Mtel Masters 2005 – Round 5 – Ponomariov, Ruslan – 1-0 – Topalov, Veselin – G8 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Ba6 10. cxd5 cxd5
Qatar Masters Open 2015 – Round 7.12 – Matlakov, Maxim – 0-1 – Grandelius, Nils – G229 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nf3 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 dxc4 10. e4 b5
Rotterdam tt 1988 – Round 1 – Tukmakov, Vladimir B – 1/2-1/2 – Short, Nigel D – G7 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Qb3 Nbd7 9. Bg5 b6 10. Rd1 Bb7
Russian vs. ROW 2002 – Round 1 – Bareev, Evgeny – 1/2-1/2 – Shirov, Alexei – G1 1. c4 e6 2. d4 d5 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 Nbd7 9. Rc1 Ne4 10. Be3 b6
Tal Memorial 2006 – Round 9 – Gelfand, Boris – 1/2-1/2 – Aronian, Levon – G35 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nf3 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Bb7 10. Nd2 Nh5
TCh-RUS 2005 – Round 7 – Raetsky, Alexander – 1/2-1/2 – Aronian, Levon – G106 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 b6 9. Bb4 c5 10. dxc5 Na6
WCh 2010 – Round 7 – Anand, Viswanathan – 1/2-1/2 – Topalov, Veselin – G2 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 dxc4 9. Ne5 b5 10. Nxc6 Nxc6
World Blitz 2006 – Round 1 – Roiz, Michael – 0-1 – Zoler, Dan – G2 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 Ne4 10. Nxe4 dxe4
World Blitz 2015 – Round 3.81 – Postny, Evgeny – 0-1 – Ladva, Ottomar – G207 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Ba6 10. cxd5 cxd5
World Blitz 2016 – Round 7.2 – Dubov, Daniil – 1/2-1/2 – Karjakin, Sergey – G270 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Bf4 dxc4 9. Ne5 Nd5 10. Nxc4 Nxf4
World Blitz 2016 – Round 7.34 – Vallejo Pons, Francisco – 1-0 – Quparadze, Giga – G284 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nf3 O-O 7. O-O c6 8. Bc3 b5 9. c5 a5 10. a3 Ne4
World Blitz 2018 – Round 1.66 – Bazeev, German – 0-1 – Paravyan, David – G54 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Nc3 dxc4 9. a4 Nbd7 10. e4 Rb8
World Blitz 2019 – Round 13.80 – Pashikian, Arman – 1-0 – Gundavaa, Bayarsaikhan – G914 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 Nbd7 9. Bf4 Nh5 10. Bc1 f5
World Blitz 2022 – Round 8.4 – Lazavik, Denis – 0-1 – Giri, Anish – G422 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 dxc4 9. Ne5 Nd5 10. Nxc4 Nxf4
World Blitz Final 2012 – Round 23 – Jumabayev, Rinat – 0-1 – Le, Quang Liem – G179 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 dxc4 10. e4 b5
World Cup 1988 – Round 1 – Jussupow, Artur – 1-0 – Spassky, Boris V. – G104 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 Nbd7 9. Nc3 Nb6 10. cxd5 exd5
World Cup 1989 – Round ? – Ljubojevic, Ljubomir – 0-1 – Jussupow, Artur – G91 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 Nbd7 9. Rc1 Ne4 10. Bb4 Bxb4
World Cup 1989 – Round 1 – Salov, Valery – 1-0 – Short, Nigel D – G30 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 a5 9. Rc1 Nbd7 10. a4 Ne4
World Cup 1991 – Round 3 – Ljubojevic, Ljubomir – 1/2-1/2 – Chandler, Murray G – G19 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Qb3 Nbd7 9. Nc3 Nb6 10. cxd5 exd5
XXI SuperGM 2004 – Round 3 – Shirov, Alexei – 1/2-1/2 – Topalov, Veselin – G6 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 b6 9. Nc3 Ba6 10. cxd5 cxd5
XXIV SuperGM 2007 – Round 4 – Leko, Peter – 1/2-1/2 – Aronian, Levon – G12 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 b6 9. Nc3 Bb7 10. Rc1 Nh5

E11h —

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Be7 5.g3 d5 6.Bg2 O-O 7.O-O c6

Eval: [+0.11]

Les coups candidats

8.Qc2 — 77.2% (7469 parties) →

Ambassadeurs : Salzmann, Stefan (52x), Mason, Ian J (50x), Rawlings, Alan J C (47x), Burmeister, Ferdinand (42x), Armani, Giuseppe (27x), Grammatica, Andrea (27x), Alekseev, Evgeny (24x), Ozen, Bahadir (23x)

8.Bf4 — 9.2% (893 parties)

Ambassadeurs : Gelfand, Boris (15x), Postny, Evgeny (12x), Tiviakov, Sergei (9x), Sumets, Andrey (9x), Aronian, Levon (8x), Khalifman, Alexander (7x), Sjugirov, Sanan (7x), Tkachiev, Vladislav (6x)

8.Qb3 — 6.8% (660 parties)

Ambassadeurs : Gleizerov, Evgeny (16x), Grabarczyk, Miroslaw (13x), Romanishin, Oleg M (8x), Krasenkow, Michal (8x), Tleptsok, Ruslan (7x), Bernal Varela, Nelson (7x), Troff, Kayden (6x), Sosonko, Gennadi (5x)

8.b3 — 2.4% (232 parties)

Ambassadeurs : Greninger, Harley (4x), Jussupow, Artur (3x), Markus, Roland (3x), Conquest, Stuart C (2x), Hertneck, Gerald (2x), Cousigne, Frederic (2x), Huzman, Alexander (2x), Prozorovsky, Vyacheslav Grigorie (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Qc2	8.Bf4	8.Qb3	8.b3
<1800	87	72%	14%	2%	6%
1800-2200	2247	80%	7%	4%	3%
2200-2600	6372	78%	9%	8%	2%
2600+	662	67%	20%	8%	2%

Évolution par décennie (% des parties)

Décennie	N parties	8.Qc2	8.Bf4	8.Qb3	8.b3
1950s	2	50%	—	—	—
1970s	12	50%	—	25%	—
1980s	166	63%	2%	31%	3%
1990s	375	66%	7%	18%	4%
2000s	1060	59%	21%	14%	3%
2010s	4852	79%	9%	6%	2%
2020s	3206	83%	6%	3%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Qc2	79%	83%	▲ +4.3%
8.Bf4	9%	6%	▼ -3.1%
8.Qb3	6%	3%	▼ -2.3%
8.b3	2%	3%	▲ +0.7%

Joueurs célèbres

Champions du monde dans cette position

Ding, Liren — 10 parties
Ju, Wenjun — 10 parties
Gukesh D — 10 parties
Kramnik, Vladimir — 9 parties
Tal, Mikhail — 3 parties
Karpov, Aleksandr — 3 parties
Anand, Viswanathan — 3 parties
Carlsen, Magnus — 3 parties
Kasparov, Garry — 2 parties
Hou, Yifan — 2 parties

Parties historiques

8.Qc2 — 77.2% (7469 parties)

1959 — Reinhardt, Enrique vs Espinosa Flores, Rafael Emilio — 0-1 — Buenos Aires ARG
1976 — Liberzon, Vladimir M vs Sosonko, Gennadi — 1/2-1/2 — Biel SUI
1977 — Polugaevsky, Lev vs Korchnoi, Viktor — 1-0 — Evian
1977 — Polugaevsky, L. vs Kortchnoi, V. — 1-0 — Evian cm sf
1978 — Beliavsky, Alexander G vs Makarichev, Sergey — 1/2-1/2 — Ashkhabad

8.Bf4 — 9.2% (893 parties)

1985 — Nogueiras Santiago, Jesus vs Sosonko, Gennadi — 1/2-1/2 — Reggio Emilia ITA
1987 — Sosonko, Gennadi vs Karpov, Aleksandr — 1/2-1/2 — Brussel blitz
1989 — Nikolic, Nebojsa vs Renet, Olivier — 0-1 — Lugano open
1990 — Sosonko, Gennadi vs Bischoff, Klaus — 1/2-1/2 — Novi Sad SRB
1990 — Epishin, Vladimir vs Vyzmanavin, Alexey — 1/2-1/2 — Leningrad ch-URS

8.Qb3 — 6.8% (660 parties)

1978 — Reefschlaeger, Helmut, Dr. vs Pachman, Ludek — 1/2-1/2 — FRG-ch Bad Neuenahr
1978 — Sosonko, Gennadi vs Browne, Walter Shawn — 1-0 — Tilburg NED
1978 — Sosonko, Gennadi vs Browne, Walter Shawn — 1-0 — Tilburg NED
1982 — Reefschlaeger, Helmut, Dr. vs Reichenbach, Werner — 1-0 — FRG-ch Bad Neuenahr
1982 — Andersson, Ulf vs Polugaevsky, Lev — 1/2-1/2 — Bugojno BIH

8.b3 — 2.4% (232 parties)

1985 — Panchenko, Alexandar G vs Huzman, Alexander — 1-0 — Uzhgorod
1986 — Neverov, Valeriy vs Conejero Moros, Alfonso — 1/2-1/2 — Shitomir
1986 — Conquest, Stuart C vs Chandler, Murray G — 0-1 — Hastings ENG
1987 — Conquest, Stuart C vs Douven, Rudy — 1/2-1/2 — Copenhagen DEN
1988 — Shantharam K vs Mishra Aditya Narayan — 0-1 — India ch-IND

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