E51 — Nimzo-Indian Defense: Normal Variation, Ragozin Variation

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O ○ 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 b5, case forte e5, paire de fous.
Faiblesses adverses : Bc8 enfermé.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 4 pièces non développées (C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Bd3 — Développer Bf1 [Masters 57%]
● Bd2 — Développer Bc1 [Masters 27%]
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte e4, avant-poste e4(C), Bb4 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)
● ...Nbd7 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

+0.15 léger avantage blanc. Base Masters : Blancs 26.4%, Nulles 51.1%, Noirs 22.5%.

Coups candidats

auto

Analyse coup par coup — 7 demi-coups commentés

1.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3.
1…Nf6 Contrôle e4, d5.
2.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4.
2…e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6.
3.Nc3 Contrôle e4, f4, c5, d5.
3…Bb4 Contrôle e4, c5, d5, f5.
4.e3 Avancée centrale — contrôle d4, f4. Prépare d4, Bd3, Be2.

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (3v0), ● b5 (2v0), ● e5 (2v0)	● e4 (2v1)
Cases faibles	—	—
Centre	● d4 (3v0), ● e5 (2v0)	● d5 (3v2), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	4 (c1, f1, a1, h1)	3 (b8, c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● e3-e4	● …e6-e5

Partie
? 1990 – Round ? – Korchnoi, Viktor – 1-0 – Palac, Mladen – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. Bb2 Nc6 9. Qc2 cxd4 10. cxd4 Bd7
30. ECC Open 2014 – Round 7.7 – Zhigalko, Andrey – 0-1 – Van Kampen, Robin – G162 1. c4 e6 2. Nc3 Nf6 3. d4 Bb4 4. Nf3 d5 5. e3 O-O 6. Be2 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 Qe7
8. Norway Chess 2020 – Round 1.1 – Aronian, Levon – 1/2-1/2 – Carlsen, Magnus – G1 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Rc1 Re8 9. Bd3 Ba6 10. Bxa6 Nxa6
85. Tata Steel Masters 2023 – Round 13.7 – Keymer, Vincent – 1/2-1/2 – Gukesh D – G91 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Re8 9. O-O Bd6 10. Re1 Bg4
Amber Blindfold 2008 – Round 4 – Kramnik, Vladimir – 1-0 – Morozevich, Alexander – G15 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c6 8. Bd3 b6 9. cxd5 cxd5 10. Qe2 Bb7
Euwe Memorial 1991 – Round 8 – Korchnoi, Viktor – 1/2-1/2 – Ljubojevic, Ljubomir – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3 Be7 7. Qc2 b6 8. e4 dxe4 9. Nxe4 Bb7 10. Bd3 Nbd7
FIDE Candidates 2018 – Round 7.1 – Karjakin, Sergey – 1-0 – So, Wesley – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd2 c5 7. a3 cxd4 8. axb4 dxc3 9. Bxc3 dxc4 10. Bxc4 Qxd1+
FIDE Grand Prix 3 Pool A 2022 – Round 5.2 – Aronian, Levon – 1-0 – Esipenko, Andrey – G10 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Bb7 9. Qc2 Re8 10. a3 Bf8
FIDE World Cup 2015 – Round 1.3 – Grachev, Boris – 1/2-1/2 – Motylev, Alexander – G140 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd2 Re8 7. Bd3 b6 8. O-O dxc4 9. Bxc4 Bb7 10. Qe2 Nbd7
FIDE World Cup 2019 – Round 2.3 – Vitiugov, Nikita – 1-0 – Huschenbeth, Niclas – G261 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd2 c5 7. a3 Bxc3 8. Bxc3 Ne4 9. Rc1 Nxc3 10. Rxc3 cxd4
FIDE World Cup 2025 1974 – Round R3 Classical 1 – Kourkoulos-Arditis Stamatis – 0-1 – Grebnev Aleksey – G458 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Bd6 9. Qc2 Ba6 10. Nb5 c6
FIDE World Cup 2025 1974 – Round R3 Classical 1 – Sam Shankland – 1/2-1/2 – Vidit Santosh Gujrathi – G455 1. e4 c5 2. Nc3 e6 3. Nge2 a6 4. g3 b5 5. Bg2 Bb7 6. d4 cxd4 7. Nxd4 Nc6 8. O-O Nxd4 9. Qxd4 Ne7 10. a4 Nc6
FIDE-Wch k.o. 1997 – Round 2.4 – Aleksandrov Ivanchev, Aleksandar – 1-0 – Hjartarson, Johann – G100 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Be2 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 a5
FTX Crypto Cup 2022 – Round 7.3 – Le, Quang Liem – 1/2-1/2 – Niemann, Hans Moke – G107 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. e3 d5 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Bb7 9. Rc1 Nbd7 10. O-O Be7
GCT Blitz YourNextMove 2018 – Round 1.5 – So, Wesley – 1/2-1/2 – Karjakin, Sergey – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Bb7 9. O-O Re8 10. a3 Bf8
Jerusalem FIDE Grand Prix 2019 – Round 2.2 – Wei, Yi – 1/2-1/2 – Karjakin, Sergey – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. e3 d5 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Bb7 9. Ne5 Bd6 10. O-O c5
Saint Louis Blitz 2023 – Round 18.1 – Le, Quang Liem – 1-0 – Robson, Ray – G86 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 Re8 7. Rc1 c5 8. a3 Bxc3 9. Bxc3 cxd4 10. Bxd4 Nc6
Saint Louis Blitz 2023 – Round 3.4 – Le, Quang Liem – 1-0 – Sevian, Samuel – G14 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Rc1 Re8 9. Ne5 c5 10. Bb5 Re7
Saint Louis Rapid 2022 – Round 4.1 – Shankland, Sam – 1/2-1/2 – Aronian, Levon – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d5 5. e3 O-O 6. Bd2 Re8 7. Rc1 b6 8. cxd5 exd5 9. a3 Bf8 10. g3 c5
Smyslov Region Group Cup 2021 – Round 5.7 – Zvjaginsev, Vadim – 1/2-1/2 – Predke, Alexandr – G51 1. c4 e6 2. Nc3 Nf6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. Bd2 Nbd7 7. a3 Bd6 8. Rc1 c6 9. Qc2 Qe7 10. Be2 dxc4
Tata Steel Masters 2024 - Round 12 - Vidit, Santosh Gujrathi - 1-0 - Abdusattorov, Nodirbek 1970 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Rc1 Be7 9. g3 Nbd7 10. Bg2 Ba6
World Blitz 2016 – Round 19.10 – Riazantsev, Alexander – 0-1 – Wojtaszek, Radoslaw – G737 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Bb7 9. O-O Re8 10. Rc1 Bf8
World Blitz 2016 – Round 21.15 – Riazantsev, Alexander – 1-0 – Cheparinov, Ivan – G819 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 a6 10. O-O Nbd7
World Blitz 2016 – Round 3.21 – Khusnutdinov, Rafael – 0-1 – Ivanchuk, Vasyl – G108 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 5. Bd3 d5 6. Nf3 O-O 7. O-O h6 8. cxd5 exd5 9. h3 Bd6 10. a3 a6
World Blitz 2017 – Round 11.6 – Esipenko, Andrey – 0-1 – Le, Quang Liem – G598 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Re8 9. O-O Bb7 10. Ne5 Bd6
World Blitz 2017 – Round 17.12 – Esipenko, Andrey – 0-1 – Yu, Yangyi – G868 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Bb7 9. O-O Nbd7 10. Ne5 Bd6
World Blitz 2017 – Round 21.18 – Esipenko, Andrey – 0-1 – Vidit, Santosh Gujrathi – G1084 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Bd3 Bb7 9. O-O Nbd7 10. Ne5 Bxc3
World Blitz 2018 – Round 13.60 – Khismatullin, Denis – 0-1 – Vishnu Prasanna. V – G798 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d5 5. e3 O-O 6. Bd2 b6 7. Rc1 a6 8. cxd5 exd5 9. Bd3 Bb7 10. O-O Nbd7
World Blitz 2018 – Round 7.17 – Jakovenko, Dmitry – 0-1 – Aadvika Giri – G399 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. Bd3 dxc4 8. Bxc4 Bb7 9. O-O Nbd7 10. Qe2 a6
World Blitz 2019 – Round 10.41 – Tomashevsky, Evgeny – 1-0 – Ganguly, Surya Shekhar – G689 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 a6 10. O-O Bd6
World Blitz 2019 – Round 15.65 – Reshetnikov, Alexey – 1/2-1/2 – Pashikian, Arman – G1037 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c6 8. Bd3 b6 9. cxd5 cxd5 10. Qe2 Bb7
World Blitz 2019 – Round 2.19 – Yanchenko, Roman – 0-1 – Aditya Tari – G92 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. e3 Nf6 5. Nf3 O-O 6. Qc2 c5 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 Qc7 10. O-O b6
World Blitz 2022 – Round 2.4 – Riazantsev, Alexander – 0-1 – Yu, Yangyi – G88 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 h6 7. O-O dxc4 8. Bxc4 c5 9. a3 Ba5 10. Qd3 Nc6
World Blitz 2023 – Round 21.20 – Narayanan S L – 1/2-1/2 – Vokhidov, Shamsiddin – G1183 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. a4 Qa5 9. Qc2 cxd4 10. exd4 Nc6
World Blitz 2023 – Round 5.13 – Rakhmanov, Aleksandr – 1/2-1/2 – Maghsoodloo, Parham – G263 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd2 Nbd7 7. a3 Be7 8. Bd3 h6 9. O-O dxc4 10. Bxc4 c5
World Blitz 2023 – Round 7.12 – Rakhmanov, Aleksandr – 1-0 – Matlakov, Maxim – G383 1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd2 Nbd7 7. a3 Be7 8. b4 c6 9. h3 Bd6 10. Be2 dxc4
World Rapid 2016 – Round 3.11 – Riazantsev, Alexander – 1/2-1/2 – Wojtaszek, Radoslaw – G96 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Rc1 Bb7 9. Bd3 Be7 10. O-O Nbd7
World Rapid 2016 – Round 9.13 – Riazantsev, Alexander – 1/2-1/2 – Inarkiev, Ernesto – G333 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 c5 7. a3 Bxc3 8. Bxc3 Ne4 9. Rc1 Nxc3 10. Rxc3 cxd4
World Rapid 2019 – Round 6.43 – Yanchenko, Roman – 0-1 – Alekseev, Evgeny – G398 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Qc2 c5 7. a3 Bxc3+ 8. bxc3 Qc7 9. a4 b6 10. cxd5 exd5

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