E00r — Catalan: 4.Nf3 Bb4+

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Nf3 Bb4+ * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte f4, case forte e5, case forte g5, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 5 pièces non développées (B1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, menace e5, libère Bf1
● Nc3 — Développer Nb1
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte e4, Bb4 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre, pawn c4 en prise.
Problèmes : roi au centre, Bc8 enfermé, 4 pièces non développées (B8, C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)
● ...Nbd7 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v0), ● f4 (2v0), ● e5 (2v0), ● g5 (2v0)	● e4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (3v1), ● e4 (2v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	5 (b1, c1, f1, a1, h1)	4 (b8, c8, 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	fermé
Ruptures	● c4-c5	● …e6-e5

Partie
1990 Linares 8th – Round 2 – Gulko, Boris – 1/2-1/2 – Jussupow, Artur – G8 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nc3 dxc4 6. Bg2 O-O 7. O-O Nc6 8. Re1 Nd5 9. Qc2 Be7 10. Ne4 Ndb4
1990 Linares 8th – Round 8 – Illescas Cordoba, Miguel – 1-0 – Jussupow, Artur – G46 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nc3 dxc4 6. Bg2 O-O 7. O-O Nc6 8. a3 Ba5 9. Bg5 h6 10. Bxf6 Qxf6
4. M-Tel Masters 2008 – Round 4 – Radjabov, Teimour – 1/2-1/2 – Topalov, Veselin – G11 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. a3 Be7 8. Qa4 a6 9. Qxc4 b5 10. Qd3 Bb7
42. Olympiad 2016 – Round 10.19 – Bluebaum, Matthias – 1-0 – Vakhidov, Jakhongir – G703 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 O-O 6. Bg2 dxc4 7. Qc2 c5 8. dxc5 c3 9. bxc3 Bxc5 10. Nb3 Bd6
43. Olympiad 2018 – Round 8.20 – Kasimdzhanov, Rustam – 1/2-1/2 – Batchuluun, Tsegmed – G522 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Nc6 8. Qa4 Bd7 9. Bg5 a5 10. Bxf6 Qxf6
American Cup Champ 2023 – Round 1.1 – Caruana, Fabiano – 1/2-1/2 – Robson, Ray – G2 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nbd2 O-O 6. Bg2 dxc4 7. O-O b5 8. a4 c6 9. Ne1 Ba6 10. Nc2 Be7
Biel Interzonal 1993 – Round 5 – Huebner, Robert – 1/2-1/2 – Lputian, Smbat – G112 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 Nc6 7. Qc2 Bxd2+ 8. Bxd2 Nxd4 9. Qxc4 Nxf3+ 10. Bxf3 O-O
FIDE Candidates 2024 - Round 2 - Praggnanandhaa R - 0-1 - Gukesh D 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nc3 dxc4 6. Bg2 O-O 7. O-O Nc6 8. a3 Be7 9. e4 a6 10. Be3 b5
FIDE World Blitz Championship 2025 – Round 3 – Daniil Dubov – 1/2-1/2 – Mahammad Muradli – G44 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 b5 7. Ne5 Nd5 8. O-O O-O 9. Qc2 Bb7 10. b3 c5
FIDE World Cup 2017 – Round 2.1 – Onischuk, Alexander – 1/2-1/2 – Wojtaszek, Radoslaw – G193 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Bb4+ 5. Nbd2 dxc4 6. a3 Bxd2+ 7. Bxd2 O-O 8. Qc2 b6 9. Qxc4 Bb7 10. Rc1 c5
FIDE World Cup 2017 – Round 4.4 – Rodshtein, Maxim – 0-1 – Fedoseev, Vladimir – G390 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 b5 7. O-O a5 8. a4 c6 9. Ne1 Nd5 10. e4 Nb6
FIDE World Rapid Championship 2025 – Round 1 – Daniil Dubov – 1-0 – Bharath Subramaniyam H – G17 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Bb4+ 5. Nbd2 O-O 6. Bg2 dxc4 7. Qc2 c5 8. dxc5 Nc6 9. O-O Bxc5 10. Nxc4 Qe7
GCT Blitz Paris 2019 – Round 12.4 – Dubov, Daniil – 1-0 – Anand, Viswanathan – G59 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Nc6 8. Qa4 Nd5 9. Qc2 Be7 10. Rd1 Ncb4
GCT Rapid Paris 2019 – Round 3.4 – Dubov, Daniil – 1/2-1/2 – Giri, Anish – G14 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Nc6 8. Qa4 Nd5 9. Qc2 Be7 10. Rd1 Ncb4
Lindores Abbey Tal Memorial 2021 – Round 2.5 – Dubov, Daniil – 1-0 – Petrosyan, Manuel – G103 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 Ne4 7. O-O Bxc3 8. bxc3 Nxc3 9. Qc2 Ne4 10. Rb1 Nd7
Lindores Abbey Tal Memorial 2021 – Round 7.2 – Dubov, Daniil – 0-1 – Caruana, Fabiano – G308 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Nc6 8. Qa4 Nd5 9. Qc2 Be7 10. Rd1 Rb8
Olympiad 2002 – Round 11 – Harikrishna, Pentala – 0-1 – Georgiev, Krum – G388 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nbd2 O-O 6. Bg2 c5 7. dxc5 Bxc5 8. O-O Nc6 9. cxd5 exd5 10. Nb3 Bb6
Tata Steel India Blitz 2019 – Round 12.4 – Harikrishna, Pentala – 0-1 – Anand, Viswanathan – G58 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 O-O 7. O-O b5 8. a4 c6 9. Ne5 Nd5 10. Ne4 f6
USA Ch 2022 – Round 2.3 – Robson, Ray – 1/2-1/2 – Caruana, Fabiano – G10 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 b5 7. a3 Be7 8. Ne5 Nd5 9. O-O O-O 10. b3 Bb7
World Blitz 2015 – Round 10.14 – Gelfand, Boris – 1-0 – Wojtaszek, Radoslaw – G599 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 O-O 7. Qc2 b5 8. a4 Bb7 9. axb5 a6 10. bxa6 Rxa6
World Blitz 2015 – Round 11.19 – Eljanov, Pavel – 1-0 – Fridman, Daniel – G667 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 c6 7. O-O b5 8. b3 cxb3 9. Nxb3 O-O 10. Ne5 Bb7
World Blitz 2018 – Round 13.10 – Cheparinov, Ivan – 1/2-1/2 – Gelfand, Boris – G753 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nc3 dxc4 6. Bg2 O-O 7. O-O Nc6 8. Qa4 Nd5 9. Qc2 Be7 10. Rd1 Ncb4
World Blitz 2018 – Round 17.71 – Makarov, Marat – 1/2-1/2 – Piorun, Kacper – G1039 1. d4 e6 2. c4 d5 3. Nf3 Nf6 4. g3 Bb4+ 5. Nc3 dxc4 6. Bg2 O-O 7. O-O Nd5 8. Qc2 Nc6 9. e3 a6 10. Rd1 b5
World Blitz 2018 – Round 5.41 – Fridman, Daniel – 1/2-1/2 – Yu, Yangyi – G303 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 Nbd7 7. Qb3 c5 8. O-O cxd4 9. Qxb4 a5 10. Qa3 dxc3
World Blitz 2019 – Round 7.3 – Socko, Bartosz – 1/2-1/2 – Matlakov, Maxim – G474 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 b5 7. O-O a5 8. a3 Be7 9. b3 cxb3 10. Qxb3 c6
World Blitz 2021 – Round 13.30 – Fridman, Daniel – 1-0 – Gajewski, Grzegorz – G769 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nbd2 O-O 6. Bg2 dxc4 7. Qc2 c5 8. O-O cxd4 9. Nxc4 Nc6 10. a3 Bd6
World Blitz 2021 – Round 14.50 – Chigaev, Maksim – 0-1 – Donchenko, Alexander – G844 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 b5 7. a3 Bxd2+ 8. Nxd2 c6 9. a4 Nd5 10. O-O Bb7
World Blitz 2021 – Round 15.71 – Halkias, Stelios – 0-1 – Nguyen, Thai Dai Van – G916 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. a3 Bxc3+ 8. bxc3 b5 9. a4 c6 10. O-O Bb7
World Blitz 2022 – Round 1.19 – Alonso Rosell, Alvar – 0-1 – Nihal Sarin – G11 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 Ne4 6. Qc2 O-O 7. Bg2 Nc6 8. O-O Bxc3 9. bxc3 Na5 10. Ba3 Re8
World Blitz 2022 – Round 11.36 – Alonso Rosell, Alvar – 1/2-1/2 – Esipenko, Andrey – G584 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 c6 7. O-O Nbd7 8. Nd2 Be7 9. e4 c5 10. e5 Ne8
World Blitz 2022 – Round 16.52 – Alonso Rosell, Alvar – 1-0 – Sjugirov, Sanan – G872 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 Ne4 7. Qc2 Nc6 8. O-O Bxc3 9. bxc3 Na5 10. cxd5 exd5
World Blitz 2022 – Round 17.5 – Dubov, Daniil – 0-1 – Sarana, Alexey – G918 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 O-O 7. O-O b5 8. Ne5 Nd5 9. Qc2 Bb7 10. b3 cxb3
World Blitz 2022 – Round 20.17 – Adhiban, B. – 0-1 – Matlakov, Maxim – G1048 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Nc6 8. a3 Be7 9. e4 a6 10. h4 b5
World Blitz 2022 – Round 20.47 – Ter-Sahakyan, Samvel – 1-0 – Cheng, Bobby – G1079 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 b5 7. a4 c6 8. O-O O-O 9. axb5 cxb5 10. Ng5 Nd5
World Blitz 2022 – Round 21.32 – Alonso Rosell, Alvar – 0-1 – Gelfand, Boris – G1117 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Nc6 8. a3 Be7 9. e4 a6 10. Be3 b5
World Rapid 2016 – Round 6.3 – Li, Chao – 1/2-1/2 – Mamedyarov, Shakhriyar – G229 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Qc2 b5 7. a4 c6 8. Bg2 Bb7 9. O-O Nbd7 10. b3 c3
World Rapid 2019 – Round 2.5 – Fridman, Daniel – 1-0 – Fedoseev, Vladimir – G121 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Bd7 8. Ne5 Bc6 9. e4 Bxc3 10. Nxc6 Nxc6
World Rapid 2019 – Round 3.18 – Dubov, Daniil – 1-0 – Najer, Evgeniy – G161 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Nc6 8. Qa4 Nd5 9. Qc2 Be7 10. Rd1 Ncb4
World Rapid 2019 – Round 9.5 – Le, Quang Liem – 1-0 – Motylev, Alexander – G597 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Nbd2 dxc4 6. a3 Bxd2+ 7. Bxd2 Nc6 8. e3 O-O 9. Bxc4 b6 10. O-O Bb7
World Rapid 2021 – Round 13.78 – Baum, Jonasz – 1/2-1/2 – Nguyen, Thai Dai Van – G792 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nc3 O-O 6. Bg2 dxc4 7. O-O Nbd7 8. Qc2 Rb8 9. Rd1 h6 10. Ne5 Nxe5

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