A29m — English: Four Knights, Main Line 6.O-O
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Bb4 5.Bg2 O-O 6.O-O * ● Trait aux Noirs
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
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 : case forte d4, Bb4 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Bc8 enfermé.
Plans :
● ...d6 — Libérer Bc8
● ...Bg4 — Clouer Nf3
● ...d5 — Rupture
● ...e4 — Rupture
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Bc8 enfermé.
Plans :
● ...d6 — Libérer Bc8
● ...Bg4 — Clouer Nf3
● ...d5 — Rupture
● ...e4 — 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) | ● d4 (2v1) |
| Cases faibles | — | — |
| Centre | ● d5 (2v1) | ● d4 (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, ● e2-e3 | ● …d7-d6, ● …d7-d5, ● …e5-e4 |
| Partie |
|---|
| 11. Tal Mem Blitz 2018 – Round 11.3 – Dubov, Daniil – 0-1 – Karjakin, Sergey – G73 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 Re8 8. Na4 d5 9. cxd5 Nxd5 10. Bg5 f6 |
| 1970 Palma de Mallorca Interzonal – Round 17 – Panno, Oscar – 1/2-1/2 – Portisch, Lajos – G14 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. d3 Bxc3 8. bxc3 e4 9. Ng5 exd3 10. exd3 h6 |
| 1972 Skopje ol (Men) fin-A – Round 3 – Jansa, Vlastimil – 1-0 – Bisguier, Arthur B – G43 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 Bxc3 8. bxc3 h6 9. e4 Ne7 10. Nh4 g5 |
| 1972 Skopje ol (Men) fin-A – Round 3 – Uhlmann, Wolfgang – 1/2-1/2 – Portisch, Lajos – G45 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. Nd5 Nxd5 8. cxd5 Nd4 9. Nxd4 exd4 10. b3 b6 |
| 1973 Leningrad Interzonal – Round 10 – Uhlmann, Wolfgang – 1/2-1/2 – Korchnoi, Viktor – G11 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Bxc3 7. bxc3 d6 8. d3 Bd7 9. e4 Kh8 10. Nh4 Ng8 |
| 1974 Manila – Round 5 – Pfleger, Helmut, Dr. – 1-0 – Vasiukov, Evgeni – G6 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Bxc3 7. bxc3 d6 8. d3 h6 9. e4 a6 10. a4 b6 |
| 1975 Portoroz/Ljubljana – Round 14 – Furman, Slavomir – 1-0 – Osterman, Rudolf – G5 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. Nd5 Bf8 8. d3 h6 9. e4 d6 10. h3 a5 |
| 1975 URS Team Ch – Round 1 – Danov, Vladimir – 0-1 – Kuzmin, Gennadi – G19 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. Nd5 Nxd5 8. cxd5 Nd4 9. Nxd4 exd4 10. e4 c6 |
| 22. ECU Club Cup 2006 – Round 5 – Minasian, Artashes – 1/2-1/2 – Tkachiev, Vladislav – G108 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 O-O 5. Nf3 Nc6 6. O-O Re8 7. Nd5 Bc5 8. d3 Nxd5 9. cxd5 Nd4 10. Nd2 d6 |
| 8. Tal Mem Blitz 2013 – Round 1 – Anand, Viswanathan – 1/2-1/2 – Gelfand, Boris – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 h6 8. Nd5 Bc5 9. e3 a6 10. b3 Ba7 |
| Biel Interzonal 1976 – Round 12 – Rogoff, Kenneth – 0-1 – Portisch, Lajos – G55 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. Nd5 Nxd5 8. cxd5 Nd4 9. d3 Nxf3+ 10. Bxf3 Bc5 |
| Cote d'Ivoire Blitz 2019 – Round 8.3 – Vachier-Lagrave, Maxime – 1/2-1/2 – Karjakin, Sergey – G38 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 h6 8. h3 a6 9. Na4 Re8 10. Be3 d5 |
| FIDE Candidates 2016 – Round 10.1 – Svidler, Peter – 1/2-1/2 – Nakamura, Hikaru – G37 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 h6 8. Na4 a5 9. b3 Re8 10. Bb2 Bf5 |
| FIDE Candidates 2016 – Round 10.4 – Aronian, Levon – 1/2-1/2 – Topalov, Veselin – G40 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 h6 8. Na4 a5 9. b3 Qe7 10. Bb2 Bc5 |
| FIDE Candidates 2016 – Round 14.1 – Svidler, Peter – 1/2-1/2 – Anand, Viswanathan – G53 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. Ne1 d6 8. Nc2 Bc5 9. Rb1 a5 10. a3 Be6 |
| FIDE World Cup 2017 – Round 1.1 – Nepomniachtchi, Ian – 1/2-1/2 – Palac, Mladen – G7 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 Re8 8. Bg5 Bxc3 9. bxc3 h6 10. Bh4 Rb8 |
| FIDE World Cup 2017 – Round 1.6 – Nepomniachtchi, Ian – 1-0 – Palac, Mladen – G178 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 Re8 8. Na4 d5 9. cxd5 Nxd5 10. Bg5 Qd7 |
| Geneve Credit Suisse 1996 – Round 4.3 – Kasparov, Garry – 1/2-1/2 – Anand, Viswanathan – G10 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. d3 Bxc3 8. bxc3 e4 9. dxe4 Nxe4 10. Qc2 d6 |
| Hoogovens 1999 – Round 3 – Kasimdzhanov, Rustam – 1/2-1/2 – Sokolov, Ivan. – G13 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. Nd5 Bf8 8. d3 h6 9. Nxf6+ Qxf6 10. Nd2 d6 |
| Horgen CS 1994 – Round 8 – Gavrikov, Viktor – 1/2-1/2 – Lutz, Christopher – G31 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Bxc3 7. bxc3 Re8 8. Qc2 e4 9. Nd4 Ne5 10. d3 c5 |
| Linares 1991 – Round 8 – Gurevich, Mikhail – 1/2-1/2 – Salov, Valery – G16 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Bxc3 7. bxc3 Re8 8. d3 e4 9. Nd4 exd3 10. exd3 h6 |
| Palma De Mallorca GP 2017 – Round 6.9 – Gelfand, Boris – 0-1 – Inarkiev, Ernesto – G54 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 Re8 8. Nd5 Nxd5 9. cxd5 Ne7 10. a3 Ba5 |
| PCA, Tal Memorial 1995 – Round 8 – Gulko, Boris – 1/2-1/2 – Short, Nigel D – G15 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 h6 8. Bd2 a5 9. a3 Bc5 10. Na4 Re8 |
| Saint Louis Blitz 2017 – Round 15.3 – Nepomniachtchi, Ian – 0-1 – Aronian, Levon – G73 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 h6 8. Bd2 a5 9. Rc1 Re8 10. a3 Bc5 |
| Smyslov Region Group Cup 2021 – Round 3.10 – Potkin, Vladimir – 1/2-1/2 – Karpov, Anatoly – G22 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. d3 Bxc3 8. bxc3 e4 9. Nd4 h6 10. Bf4 d6 |
| SportAccord Basque Men 2013 – Round 1.2 – Kamsky, Gata – 1-0 – Wang, Yue(SH) – G8 1. c4 Nf6 2. Nc3 e5 3. g3 Bb4 4. Bg2 O-O 5. Nf3 Nc6 6. O-O Re8 7. d3 Bxc3 8. bxc3 e4 9. Nd4 exd3 10. exd3 Nxd4 |
| Superbet Blitz 2019 – Round 12.5 – Artemiev, Vladislav – 1/2-1/2 – Mamedyarov, Shakhriyar – G60 1. c4 Nf6 2. Nc3 e5 3. g3 Bb4 4. Bg2 O-O 5. Nf3 Nc6 6. O-O Re8 7. Ne1 d6 8. Nc2 a5 9. d3 Bc5 10. Rb1 h6 |
| Turin ol (Men) 37th 2006 – Round 10 – Ivanchuk, Vasyl – 1/2-1/2 – Kramnik, Vladimir – G123 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Bxc3 7. bxc3 Re8 8. d3 e4 9. Nd4 exd3 10. exd3 h6 |
| USA Ch 2018 – Round 5.3 – Izoria, Zviad – 1/2-1/2 – Akobian, Varuzhan – G27 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. Nd5 Bc5 8. e3 Bg4 9. h3 Bh5 10. d3 Nxd5 |
| Vugar Gashimov Mem 2015 – Round 8.3 – So, Wesley – 1/2-1/2 – Carlsen, Magnus – G37 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. Nd5 Nxd5 8. cxd5 Nd4 9. Nxd4 exd4 10. Qa4 a5 |
| World Blitz 2015 – Round 7.13 – Tomashevsky, Evgeny – 1/2-1/2 – Zhigalko, Sergei – G408 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 h6 8. Bd2 Bc5 9. Na4 a5 10. e3 Bf5 |
| World Blitz 2016 – Round 12.38 – Agdestein, Simen – 0-1 – Tomashevsky, Evgeny – G491 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Nf3 Nc6 5. Bg2 O-O 6. O-O d6 7. d3 h6 8. Rb1 a5 9. a3 Bc5 10. e3 Bf5 |
| World Blitz 2016 – Round 15.21 – Tomashevsky, Evgeny – 1/2-1/2 – Volokitin, Andrei – G595 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. Nd5 Nxd5 8. cxd5 Nd4 9. b3 Nxf3+ 10. Bxf3 e4 |
| World Blitz 2016 – Round 21.6 – Dubov, Daniil – 1-0 – Wojtaszek, Radoslaw – G845 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 Re8 8. Nd5 Nxd5 9. cxd5 Ne7 10. Nd2 c6 |
| World Blitz 2017 – Round 9.26 – Eljanov, Pavel – 0-1 – Kryvoruchko, Yuriy – G463 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. d3 Re8 8. Rb1 Bg4 9. h3 Be6 10. Bg5 h6 |
| World Blitz 2018 – Round 3.20 – Svidler, Peter – 1-0 – Tsydypov, Zhamsaran – G153 1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bb4 5. Nf3 O-O 6. O-O Bxc3 7. bxc3 d6 8. Ne1 Ne7 9. Nc2 c6 10. e4 Be6 |
| World Blitz 2019 – Round 2.44 – Inarkiev, Ernesto – 1-0 – Andriasian, Zaven – G116 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 Bb4 5. Bg2 O-O 6. O-O Bxc3 7. bxc3 d6 8. d3 h6 9. e4 Nh7 10. Nh4 Qf6 |
| World Cup 1989 – Round 13 – Ribli, Zoltan – 1/2-1/2 – Sax, Gyula – G75 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. d3 Bxc3 8. bxc3 e4 9. Nd4 h6 10. Qc2 exd3 |
| World Rapid 2016 – Round 3.40 – Agdestein, Simen – 1-0 – Neelotpal, Das – G119 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Nf3 Nc6 5. Bg2 O-O 6. O-O Bxc3 7. bxc3 e4 8. Ng5 Re8 9. f3 exf3 10. Nxf3 d5 |
| World Rapid 2019 – Round 9.70 – Potkin, Vladimir – 1/2-1/2 – Abdusattorov, Nodirbek – G611 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Bxc3 7. bxc3 d6 8. d3 e4 9. Nd4 exd3 10. exd3 Nxd4 |
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