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) | ● b4 (2v0), ● d4 (2v1) |
| Cases faibles | — | — |
| Centre | ● d5 (2v1) | ● d4 (2v1) |
Colonnes et diagonales
| ♔ Blancs | ♚ Noirs |
Pièces
| ♔ Blancs | ♚ Noirs | |
| Bc1 | ● Bc1 Non développé (mob. 0) | |
| 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 | mobile | |
| Ruptures | ● d2-d4 | ● …d7-d5 |
A29b — Four Knights
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 g6 ○ Trait aux Blancs
Ouverture — Centre mobile
♔ Point de vue Blancs
8
7
6
5
4
3
2
1
abcdefgh
Plans. Bg2 (Fianchetto, fou sur la grande diagonale — 60 % des parties) ; d4 (Occuper le centre — 38 % des parties).
♚ Point de vue Noirs
1
2
3
4
5
6
7
8
hgfedcba
Plans. ...Bg7 (Fianchetto, fou sur la grande diagonale — 60 % des parties) ; ...d6 (Libérer Bc8 — 3 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
| Partie |
|---|
| 11. Tal Mem Blitz 2018 – Round 7.5 – Dubov, Daniil – 1-0 – Artemiev, Vladislav – G47 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 exd4 8. Nxd4 Re8 9. Nc2 d6 10. Qd2 Bf5 |
| 1914 St Petersburg prel – Round 1 – Rubinstein, Akiba – 1/2-1/2 – Tarrasch, Siegbert – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 exd4 7. Nxd4 O-O 8. O-O Re8 9. e3 Ne5 10. b3 d6 |
| 1958 Portoroz Interzonal – Round 21 – Filip, Marius Liviu – 1/2-1/2 – Averbakh, Yuri L – G196 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 exd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 Ng4 |
| 1963 Toronto Ch – Round 8 – Sarosy, Zoltan L – 1-0 – Greenberg, Joe – G8 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 exd4 7. Nxd4 O-O 8. Nc2 d6 9. O-O Be6 10. Ne3 Qd7 |
| 1963 UKR Ch – Round 16 – Kots, Yuri I – 0-1 – Shianovsky, Vladislav I – G104 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 exd4 7. Nxd4 O-O 8. O-O Re8 9. Nxc6 bxc6 10. Qa4 Bb7 |
| 1965 Capablanca Memorial – Round 13 – O'Kelly, Albéric de Galway – 1/2-1/2 – Lehmann, Heinz – G128 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 d6 7. d5 Ne7 8. e4 O-O 9. Nd2 Nd7 10. f3 f5 |
| 1966 Den Haag zt – Round 4 – Kavalek, Lubomir – 1-0 – Alvarez Lee, Felix – G26 1. c4 Nc6 2. Nf3 e5 3. Nc3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 exd4 8. Nxd4 Ng4 9. Nxc6 bxc6 10. Bd2 Rb8 |
| 1967 FRG Ch Kiel GER – Round 6 – Eising, Johannes – 1-0 – Hess, Ralf E. – G22 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O d6 7. Rb1 Be6 8. d3 h6 9. b4 Qd7 10. b5 Ne7 |
| 41. Olympiad Open 2014 – Round 5.12 – Mareco, Sandro – 1/2-1/2 – Bacrot, Etienne – G321 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 exd4 7. Nxd4 O-O 8. Bf4 Re8 9. Nxc6 bxc6 10. Qd2 Ba6 |
| World Blitz 2015 – Round 20.24 – Dubov, Daniil – 1-0 – Edouard, Romain – G1239 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Rb1 d6 8. b4 h6 9. b5 Ne7 10. a4 Be6 |
| World Cup 1989 – Round 1 – Vaganian, Rafael A – 1/2-1/2 – Seirawan, Yasser – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. Rb1 a5 7. d4 d6 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qxd8+ Kxd8 |
