A29p — English: Four Knights, Main Line 6.O-O e4

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Bb4 5.Bg2 O-O 6.O-O e4 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b5, case forte d5, paire de fous.
Faiblesses adverses : Bc8 enfermé.
Problèmes : Bc1 enfermé, Bg2 enfermé.
Plans :
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Bb4 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Bc8 enfermé.
Plans :
● ...d6 — Libérer Bc8
● ...Bg4 — Clouer Nf3
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (2v1)	—
Cases faibles	—	—
Centre	● d5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Enfermé (mob. 2)
Bb4		● Bb4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	2 (c8, a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d2-d3, ● d2-d4, ● e2-e3	● …d7-d6, ● …d7-d5

Partie
1972 Skopje ol (Men) fin-A – Round 15 – Sloth, Jorn – 0-1 – Wirthensohn, Heinz – G50 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. d3 exd3 10. exd3 d6
1974 Manila – Round 1 – Giardelli, Sergio C. – 0-1 – Winston, Peter J – G7 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 Qe7
1974 Manila – Round 2 – Naranja, Renato – 0-1 – Cardoso, Radolfo Tan – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. d3 exd3 10. exd3 h6
1975 URS Team Ch – Round 3 – Zhemajitis, G. – 0-1 – Vooremaa, Andres – G20 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. dxc3 Re8 9. b3 h6 10. Nh3 d6
3. GRENKE Chess Classic 2015 – Round 6.1 – Aronian, Levon – 1/2-1/2 – Adams, Michael – G21 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 d5
3. Norway Chess 2015 – Round 7.4 – Aronian, Levon – 1/2-1/2 – Anand, Viswanathan – G34 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 Qe7
3. Sinquefield Cup 2015 – Round 8.1 – Aronian, Levon – 1/2-1/2 – Anand, Viswanathan – G35 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 d5
43. Olympiad 2018 – Round 8.1 – Nakamura, Hikaru – 1/2-1/2 – Naiditsch, Arkadij – G494 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 e3 10. d3 d5
5. Sinquefield Cup 2017 – Round 7.3 – Nakamura, Hikaru – 0-1 – Aronian, Levon – G33 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 e3 10. d3 d5
6. Norway Chess 2018 – Round 8.4 – Nakamura, Hikaru – 1-0 – Karjakin, Sergey – G35 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 d5
Biel Interzonal 1976 – Round 2 – Petrosian, Tigran V – 1/2-1/2 – Rogoff, Kenneth – G8 1. c4 Nf6 2. Nc3 e5 3. g3 Bb4 4. Nf3 Nc6 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. dxc3 h6 9. Nc2 d6 10. Ne3 Re8
FIDE Candidates 2016 – Round 10.3 – Caruana, Fabiano – 1-0 – Anand, Viswanathan – G39 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 d5
FIDE Candidates 2016 – Round 8.1 – Svidler, Peter – 1/2-1/2 – Karjakin, Sergey – G29 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 e3 10. d3 d5
FIDE World Cup 2015 – Round 1.2 – Granda Zuniga, Julio E – 1-0 – Fier, Alexandr – G69 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 Qe7
FIDE World Cup 2015 – Round 6.2 – Karjakin, Sergey – 1/2-1/2 – Eljanov, Pavel – G416 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 Qe7
FIDE World Cup 2019 – Round 1.1 – Anwuli, Daniel – 0-1 – Vachier-Lagrave, Maxime – G8 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 d5
GCT Rapid YourNextMove 2017 – Round 5.3 – Nepomniachtchi, Ian – 1-0 – Aronian, Levon – G23 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. bxc3 Re8 9. f3 d5 10. cxd5 Qxd5
GRENKE Chess Classic 2018 – Round 7.3 – Vachier-Lagrave, Maxime – 0-1 – Caruana, Fabiano – G33 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. Qc2 d5 10. cxd5 Qxd5
Interpolis 1983 – Round 1 – Portisch, Lajos – 1-0 – Huebner, Robert – G5 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Nf3 Nc6 5. Bg2 O-O 6. O-O e4 7. Ne1 Re8 8. Nd5 h6 9. d3 Bxe1 10. Rxe1 Ne5
It 2001 – Round 5 – Kasparov, Garry – 1/2-1/2 – Sadvakasov, Darmen – G9 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 e3 10. dxe3 Qe7
Lindores Abbey Tal Memorial 2021 – Round 3.2 – Caruana, Fabiano – 1-0 – Vokhidov, Shamsiddin – G130 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. bxc3 Re8 9. Nc2 d5 10. cxd5 Qxd5
Manila Interzonal 1976 – Round 9 – Gheorghiu, Florin – 1/2-1/2 – Mecking, Henrique – G37 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. dxc3 Re8 9. Nc2 d6 10. b3 h6
Manila Interzonal 1990 – Round 13 – Georgiev, Kaloyan – 1/2-1/2 – Hjartarson, Johann – G209 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. dxc3 h6 9. Nc2 d6 10. Ne3 Re8
Novgorod 1997 – Round 8 – Topalov, Veselin – 0-1 – Gelfand, Boris – G19 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 e3 10. dxe3 b6
Palma De Mallorca GP 2017 – Round 5.9 – Gelfand, Boris – 1/2-1/2 – Hammer, Jon Ludvig – G45 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 e3 10. d3 d5
Petropolis Interzonal 1973 – Round 2 – Polugaevsky, Lev – 1/2-1/2 – Savon, Vladimir Andreevichndreevich – G5 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. dxc3 h6 9. Nc2 Re8 10. Ne3 d6
Petropolis Interzonal 1973 – Round 2 – Smyslov, Vassily – 1/2-1/2 – Portisch, Lajos – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. dxc3 Re8 9. f3 d6 10. b3 Bd7
Tbilisi 1976 – Round 1 – Petrosian, Tigran V – 1/2-1/2 – Korchnoi, Viktor – G3 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. dxc3 Re8 9. Bg5 h6 10. Bxf6 Qxf6
World Blitz 2015 – Round 11.17 – Tomashevsky, Evgeny – 1-0 – Gajewski, Grzegorz – G665 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 d5
World Championship 29th 1978 – Round 6 – Karpov, Anatoly – 1/2-1/2 – Korchnoi, Viktor – G3 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. dxc3 h6 9. Nc2 Re8 10. Ne3 d6
World Championship 34th-KK4 1987 – Round 2 – Kasparov, Garry – 0-1 – Karpov, Anatoly – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 e3 10. d3 d5
World Championship 34th-KK4 1987 – Round 4 – Kasparov, Garry – 1-0 – Karpov, Anatoly – G2 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 exf3 10. Nxf3 Qe7

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