Structure de pions
| ♔ Blancs | ♚ Noirs | |
| Pions doublés | — | — |
| Pions isolés | — | — |
| Arriérés | — | — |
| Chaînes | ● f2→g3, h2→g3 | ● f7→g6, h7→g6 |
| Passés | — | — |
| Majorité | — | — |
Cases
| ♔ Blancs | ♚ Noirs | |
| Cases fortes | ● b5 (2v0), ● d5 (2v1), ● g5 (2v0) | ● b4 (2v0) |
| Cases faibles | ● d4 | ● e5 |
| Centre | ● d5 (2v1), ● e5 (2v1) | — |
Colonnes et diagonales
| ♔ Blancs | ♚ Noirs |
Pièces
| ♔ Blancs | ♚ Noirs | |
| Bc1 | ● Bc1 Non développé (mob. 5) | |
| Bf1 | ● Bf1 Non développé (mob. 2) | |
| Bc8 | ● Bc8 Non développé (mob. 0) | |
| Bf8 | ● Bf8 Non développé (mob. 7) | |
| Paire de fous | ● Oui | ● Oui |
| Non développées | 4 (● c1, ● 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 | tension | |
| Ruptures | — | ● …d7-d5 |
A29f — English: Four Knights, 4.g3 g6 5.d4
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 g6 5.d4 * ● Trait aux Noirs
Ouverture — Tension centrale
♔ Point de vue Blancs
8
7
6
5
4
3
2
1
abcdefgh
Plans. Nd5 (Cavalier centralisé en d5 — 8 % des parties) ; Ng5 (4 % des parties).
♚ Point de vue Noirs
1
2
3
4
5
6
7
8
hgfedcba
Plans. ...exd4 (Capture en d4, Occuper le centre — 94 % des parties) ; ...e4 (Occuper le centre — 4 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
| Partie |
|---|
| 1936 USA Ch New York, NY USA – Round 15 – Kevitz, Alexander – 1/2-1/2 – Dake, Arthur William – G28 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Nxc6 bxc6 8. Bg2 O-O 9. O-O Bb7 10. Qa4 Qc8 |
| 1937 Stockholm ol – Round 2 – Zita, Frantisek – 1-0 – Petursson, Sigurdur Alex – G9 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Bg2 O-O 8. O-O h6 9. h3 Re8 10. Nc2 d6 |
| 1954 Hungary Ch – Round 1 – Koberl, Ferenc – 1-0 – Ozsvath, Andras – G5 1. c4 Nf6 2. Nc3 e5 3. g3 g6 4. Nf3 Nc6 5. d4 exd4 6. Nd5 h6 7. Nxd4 Bg7 8. Nb5 Nxd5 9. cxd5 a6 10. Nc3 Ne5 |
| 1956 Hastings5657 – Round 1 – O'Kelly, Albéric de Galway – 1-0 – Clarke, Peter H – G2 1. c4 e5 2. Nc3 Nf6 3. g3 g6 4. Nf3 Nc6 5. d4 exd4 6. Nxd4 Bg7 7. Bg2 O-O 8. O-O Re8 9. Nc2 d6 10. h3 Be6 |
| 1967 Hastings6768 – Round 5 – Gheorghiu, Florin – 1-0 – Keene, Raymond D – G22 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Nxc6 bxc6 8. Bg2 Ng4 9. Qc2 O-O 10. O-O Bb7 |
| 3. Pearl Spring 2010 – Round 3 – Gashimov, Vugar – 0-1 – Bacrot, Etienne – G5 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Nxc6 dxc6 8. Qxd8+ Kxd8 9. Bd2 Be6 10. Rd1 Kc8 |
| 4. London Chess Classic 2012 – Round 6.3 – Anand, Viswanathan – 0-1 – Adams, Michael – G18 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Bg2 O-O 8. O-O Re8 9. Nc2 d6 10. Bd2 a6 |
| 5. Sinquefield Cup 2017 – Round 8.3 – Nepomniachtchi, Ian – 1/2-1/2 – Carlsen, Magnus – G38 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Bg2 O-O 8. Bf4 Nh5 9. Nxc6 dxc6 10. Qxd8 Rxd8 |
| 7. World Team Championship 2010 – Round 5 – Jakovenko, Dmitry – 1/2-1/2 – Haznedaroglu, Kivanc – G71 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Nxc6 dxc6 8. Qxd8+ Kxd8 9. Bf4 Be6 10. Rd1+ Kc8 |
| World Blitz 2015 – Round 21.8 – Aronian, Levon – 1/2-1/2 – Anand, Viswanathan – G1343 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Bf4 O-O 8. Nxc6 bxc6 9. Bg2 Rb8 10. Qd2 d5 |
Anand, Viswanathan — 2 parties
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie
1954 — Koberl, Ferenc vs Ozsvath, Andras — 1-0 — Hungary ch
1956 — O'Kelly de Galway, Alberic vs Clarke, Peter — 1-0 — Hastings ENG
1960 — Peterson, Andrejs vs Keres, Paul — 1/2-1/2 — Parnu EST
1965 — Sarosy, Zoltan L vs Aker-Ityo, Kater John — 0-1 — Toronto CAN
1982 — Backe, Peter vs Lundquist, Elias — 1-0 — Orebro SWE
2003 — Sousa, Emanuel Luis Alves C. vs Soares, Diana — 1/2-1/2 — Aveiro POR
2004 — Carvalho, Guillermo vs Cordova, Emilio — 1/2-1/2 — ?