A30g — English: Symmetrical, Mutual Double Fianchetto

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 * ● Trait aux Noirs

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 : Bg7 enfermé.
Problèmes : Bb2 enfermé, Bg2 enfermé.
Plans :
● h3 — Empêcher ...Bg4
● d3 — Protéger e4, libérer Bc1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte e4, Bb7 actif, paire de fous.
Faiblesses adverses : Bb2 enfermé, Bg2 enfermé.
Problèmes : Bg7 enfermé.
Plans :
● ...Nc6 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...d6 — Rupture
● ...d5 — Rupture
● ...e6 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● b6→c5, a7→b6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	● e4 (2v1)
Cases faibles	—	● d5
Centre	● e5 (1v0)	● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bb2	● Bb2 Enfermé (mob. 2)
Bg2	● Bg2 Enfermé (mob. 2)
Bb7		● Bb7 Actif (mob. 6)
Bg7		● Bg7 Enfermé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	1 (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, ● …e7-e6, ● …e7-e5

Partie
42. Olympiad 2016 – Round 2.7 – AlHuwar, Jasem – 0-1 – Swiercz, Dariusz – G156 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 b6 5. Bg2 Bb7 6. O-O O-O 7. c4 c5 8. Nc3 d6 9. e3 Ne4 10. Qc2 Nxc3
Belgrade m 1985 – Round 4 – Andersson, Ulf 1949 – 1/2-1/2 – Kasparov, Garry – G4 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. cxd5 Nxd5
Biel Interzonal 1985 – Round 11 – Andersson, Ulf 1949 – 1/2-1/2 – Polugaevsky, Lev – G34 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. Ne5 e6
Biel Interzonal 1985 – Round 12 – Andersson, Ulf 1949 – 1/2-1/2 – Vaganian, Rafael A – G37 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 e6 10. d4 d5
Bugojno 1978 – Round 3 – Timman, Jan H – 0-1 – Larsen, Benjamin Holsko – G25 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. cxd5 Nxd5
Bugojno 1980 – Round 4 – Ivkov, Borislav – 1/2-1/2 – Kavalek, Lubomir – G15 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 e6 9. Rc1 d6 10. d4 Qe7
Clarin 1979 – Round 1 – Ivkov, Borislav – 0-1 – Larsen, Benjamin Holsko – G5 1. Nf3 Nf6 2. c4 c5 3. Nc3 b6 4. g3 Bb7 5. Bg2 g6 6. b3 Bg7 7. Bb2 O-O 8. O-O Na6 9. d4 cxd4 10. Nxd4 Bxg2
Clarin 1979 – Round 2 – Ivkov, Borislav – 0-1 – Larsen, Bent – G8 1. Nf3 Nf6 2. c4 c5 3. Nc3 b6 4. g3 Bb7 5. Bg2 g6 6. b3 Bg7 7. Bb2 O-O 8. O-O Na6 9. d4 cxd4 10. Nxd4 Bxg2
Interpolis 1983 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Vaganian, Rafael A – G44 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 e6 9. d4 d5 10. dxc5 bxc5
Mar del Plata 1982 – Round 1 – Larsen, Benjamin Holsko – 1/2-1/2 – Giardelli, Sergio C. – G57 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O c5 5. c4 g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Nc6 9. d4 Nxd4 10. Nxd4 Bxg2
Montreal 1979 – Round 18 – Tal, Mikhail – 1/2-1/2 – Timman, Jan H – G76 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. dxc5 Nxc5
Moskou ch-URS 1973 – Round 16 – Polugaevsky, Lev – 1/2-1/2 – Savon, Vladimir – G95 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 Rc8 10. d4 d5
Moskou ch-URS 1976 – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Karpov, Aleksandr – G39 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. e3 d5 10. Nxd5 Nxd5
Ruy Lopez Memorial 1975 – Round 13 – Hort, Vlastimil – 1/2-1/2 – Ljubojevic, Ljubomir – G30 1. Nf3 Nf6 2. c4 c5 3. Nc3 g6 4. g3 b6 5. Bg2 Bb7 6. b3 Bg7 7. Bb2 O-O 8. O-O Nc6 9. d4 Nxd4 10. Nxd4 Bxg2
Sinquefield Cup Ultimate Moves 2015 – Round ? – Anand, Viswanathan – 1-0 – Topalov, Veselin – G5 1. Nf3 Nf6 2. b3 b6 3. g3 Bb7 4. Bg2 g6 5. Bb2 Bg7 6. O-O O-O 7. c4 c5 8. Nc3 d6 9. d4 cxd4 10. Nxd4 Bxg2
SportAccord Blitz 2014 – Round 22.7 – Harikrishna, Pentala – 1/2-1/2 – Mamedyarov, Shakhriyar – G174 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. b3 Bg7 6. Bb2 O-O 7. c4 c5 8. Nc3 Nc6 9. d4 cxd4 10. Nxd4 Rc8
Thessaloniki olm 1988 – Round 9 – Yusupov Afruz – 1/2-1/2 – Benjamin Bedell, Jr. – G86 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. d4 cxd4 10. Nxd4 Bxg2
World Blitz 2016 – Round 10.2 – Karjakin, Sergey – 1-0 – Salem, A.R. Saleh – G392 1. Nf3 c5 2. c4 Nf6 3. b3 g6 4. Bb2 Bg7 5. g3 b6 6. Bg2 Bb7 7. O-O O-O 8. Nc3 d6 9. d4 cxd4 10. Qxd4 Nbd7
World Blitz 2017 – Round 5.9 – Grischuk, Alexander – 1/2-1/2 – Fedoseev, Vladimir – G284 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 b6 5. Bg2 Bb7 6. O-O O-O 7. c4 c5 8. Nc3 e6 9. d4 cxd4 10. Qxd4 Nc6
World Blitz 2019 – Round 10.47 – Meier, Georg – 0-1 – Pigusov, Evgeny – G694 1. Nf3 Nf6 2. g3 c5 3. c4 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 e6 10. d4 d5
World Blitz 2019 – Round 16.37 – Meier, Georg – 1/2-1/2 – Predke, Alexandr – G1080 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. d4 cxd4 10. Qxd4 Nbd7
World Blitz 2019 – Round 19.21 – Vitiugov, Nikita – 0-1 – Predke, Alexandr – G1269 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. c4 c5 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. d4 cxd4 10. Nxd4 Bxg2
World Cup 1988 – Round 14 – Andersson, Ulf 1949 – 1/2-1/2 – Speelman, Jon S – G120 1. Nf3 c5 2. c4 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 e6 10. d4 d5
World Cup 1989 – Round ? – Hjartarson, Johann – 1/2-1/2 – Speelman, Jon S – G118 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 d5 10. Nxd5 Nxd5
World Cup 1989 – Round 1 – Speelman, Jon S – 1/2-1/2 – Vaganian, Rafael A – G74 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 1/2-1/2
World Rapid 2019 – Round 5.49 – Triapishko, Alexandr – 0-1 – Chigaev, Maksim – G332 1. Nf3 Nf6 2. g3 g6 3. b3 b6 4. Bb2 Bg7 5. Bg2 Bb7 6. O-O c5 7. c4 O-O 8. Nc3 d6 9. Rc1 Nbd7 10. e3 a6
World Rapid Final 2012 – Round 6 – Radjabov, Teimour – 1-0 – Grischuk, Alexander – G47 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 c5 5. c4 b6 6. Bg2 Bb7 7. O-O O-O 8. Nc3 Na6 9. d4 d5 10. Ne5 e6

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