A30p — English: Symmetrical, Hedgehog, 7.b3
1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O * ○ Trait aux Blancs
Ouverture — Centre semi-ouvert
♔ Point de vue Blancs
8
7
6
5
4
3
2
1
abcdefgh
Avantages : case forte b5, paire de fous.
Faiblesses adverses : arriéré d7, Be7 enfermé.
Problèmes : Bc1 enfermé, Bg2 enfermé.
Plans :
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4
Faiblesses adverses : arriéré d7, Be7 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 e4, case forte c5, Bb7 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Be7 enfermé, arriéré d7.
Plans :
● ...Nc6 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...d6 — Rupture
● ...d5 — Rupture
● ...e5 — Rupture
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Be7 enfermé, arriéré d7.
Plans :
● ...Nc6 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...d6 — Rupture
● ...d5 — Rupture
● ...e5 — Rupture
Avantages
Faiblesses adverses
Diagonale active
Plans
Structure de pions
| ♔ Blancs | ♚ Noirs | |
| Pions doublés | — | — |
| Pions isolés | — | — |
| Arriérés | — | ● d7 |
| Chaînes | ● a2→b3, f2→g3, h2→g3, b3→c4 | ● b6→c5, a7→b6, d7→e6, f7→e6 |
| Passés | — | — |
| Majorité | — | — |
Cases
| ♔ Blancs | ♚ Noirs | |
| Cases fortes | ● b5 (2v0) | ● e4 (2v1), ● c5 (2v0) |
| Cases faibles | — | — |
| Centre | ● e5 (1v0) | ● d5 (3v2), ● e4 (2v1) |
Colonnes et diagonales
| ♔ Blancs | ♚ Noirs |
Pièces
| ♔ Blancs | ♚ Noirs | |
| Bc1 | ● Bc1 Non développé (mob. 2) | |
| Bg2 | ● Bg2 Enfermé (mob. 2) | |
| Bb7 | ● Bb7 Actif (mob. 6) | |
| Be7 | ● Be7 Enfermé (mob. 1) | |
| Paire de fous | ● Oui | ● Oui |
| Non développées | 2 (c1, a1) | 2 (b8, a8) |
Sécurité du roi
| ♔ Blancs | ♚ Noirs | |
| Statut | ● Roqué | ● Roqué |
| Droits de roque | — | — |
Thèmes
| ♔ Blancs | ♚ Noirs | |
| Phase | Ouverture | |
| Centre | semi-ouvert | |
| Ruptures | ● d2-d3, ● e2-e3 | ● …d7-d6, ● …d7-d5, ● …e6-e5 |
| Partie |
|---|
| 22. ECU Club Cup 2006 – Round 7 – Huzman, Alexander – 1/2-1/2 – Van Wely, Loek – G169 1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 b6 5. Bg2 Bb7 6. O-O Be7 7. b3 O-O 8. e3 d6 9. Bb2 Nbd7 10. d4 Ne4 |
| Amber Rapidplay 2002 – Round 4 – Ivanchuk, Vasyl – 1-0 – Ljubojevic, Ljubomir – G19 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. b3 O-O 8. Bb2 d5 9. e3 Nc6 10. cxd5 exd5 |
| Biel Interzonal 1976 – Round 15 – Geller, Efim P – 1/2-1/2 – Smejkal, Jakub – G70 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. b3 O-O 8. Bb2 d5 9. e3 dxc4 10. bxc4 Nc6 |
| IBM 1980 – Round 1 – Timman, Jan H – 1-0 – Van der Wiel, John T.H. – G4 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. g3 c5 5. Bg2 Bb7 6. O-O Be7 7. b3 O-O 8. Bb2 d5 9. e3 Nc6 10. cxd5 Nxd5 |
| Lindores Abbey Tal Memorial 2021 – Round 8.10 – Abdusattorov, Nodirbek – 1-0 – Oparin, Grigoriy – G340 1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 b6 5. Bg2 Bb7 6. O-O Be7 7. b3 O-O 8. Bb2 d5 9. e3 Qc8 10. Rc1 Rd8 |
| Manila Interzonal 1990 – Round 13 – Damljanovic, Branko – 1/2-1/2 – Ljubojevic, Ljubomir – G224 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. b3 O-O 8. Bb2 d5 9. e3 dxc4 10. bxc4 Nc6 |
| Novi Sad olm 1990 – Round 7 – Korchnoi, Viktor – 1-0 – Wahjuwidajat, Utut Adianto – G40 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. b3 O-O 8. Bb2 d5 9. e3 Nbd7 10. Qe2 Qc7 |
| World Blitz 2015 – Round 8.54 – Demuth, Adrien – 1-0 – Kryvoruchko, Yuriy – G509 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. Nc3 O-O 7. b3 c5 8. Bb2 d5 9. e3 dxc4 10. bxc4 Nc6 |
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- A10-A39 English Opening, A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21], A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34], SÉRIE A
22. ECU Club Cup 2006 – Round 7 – Huzman, Alexander – 1/2-1/2 – Van Wely, Loek – G169
- Lire la suite
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- A10-A39 English Opening, A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21], A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34], SÉRIE A
Amber Rapidplay 2002 – Round 4 – Ivanchuk, Vasyl – 1-0 – Ljubojevic, Ljubomir – G19
- Lire la suite
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- A10-A39 English Opening, A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21], A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34], SÉRIE A
Biel Interzonal 1976 – Round 15 – Geller, Efim P – 1/2-1/2 – Smejkal, Jakub – G70
- Lire la suite
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- A10-A39 English Opening, A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21], A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34], SÉRIE A
IBM 1980 – Round 1 – Timman, Jan H – 1-0 – Van der Wiel, John T.H. – G4
- Lire la suite
-
- A10-A39 English Opening, A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21], A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34], SÉRIE A
Lindores Abbey Tal Memorial 2021 – Round 8.10 – Abdusattorov, Nodirbek – 1-0 – Oparin, Grigoriy – G340
- Lire la suite
-
- A10-A39 English Opening, A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21], A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34], SÉRIE A
Manila Interzonal 1990 – Round 13 – Damljanovic, Branko – 1/2-1/2 – Ljubojevic, Ljubomir – G224
- Lire la suite
-
- A10-A39 English Opening, A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21], A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34], SÉRIE A
Novi Sad olm 1990 – Round 7 – Korchnoi, Viktor – 1-0 – Wahjuwidajat, Utut Adianto – G40
- Lire la suite
-
- A10-A39 English Opening, A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21], A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34], SÉRIE A
World Blitz 2015 – Round 8.54 – Demuth, Adrien – 1-0 – Kryvoruchko, Yuriy – G509
- Lire la suite








