E52f — Nimzo-Indian: Main Line, 6…b6 7.O-O Bb7 8.a3 Bd6

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6 7.O-O Bb7 8.a3 Bd6 * ○ 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, Bd3 actif, paire de fous.
Faiblesses adverses : arriéré c7.
Problèmes : Bc1 enfermé, arriéré b2.
Plans :
● Bd2 — Développer Bc1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : avant-poste e4(C), Bd6 actif, paire de fous.
Faiblesses adverses : arriéré b2, Bc1 enfermé.
Problèmes : arriéré c7.
Plans :
● ...Nbd7 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E52f — Main Line

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6 7.O-O Bb7 8.a3 Bd6

Eval: [+0.15]

Les coups candidats

9.cxd5 — 39.5% (197 parties)

Ambassadeurs : Gligoric, Svetozar (8x), Ftacnik, Lubomir (5x), Petrosian, Tigran V. (3x), Mokry, Karel (3x), Chuchelov, Vladimir (3x), Campani, Paolo (3x), Ligterink, Gert (2x), Browne, Walter Shawn (2x)

9.b4 — 37.9% (189 parties)

Ambassadeurs : Portisch, Lajos (6x), Donner, Jan-Hein (5x), Bisguier, Arthur B (4x), Neverov, Valeriy (4x), Tal, Mikhail (3x), Khalifman, Alexander (3x), Kolanek, Roman (3x), Gligoric, Svetozar (2x)

9.b3 — 9.6% (48 parties)

Ambassadeurs : Shcherbakov, Ruslan (3x), Speelman, Jon S (3x), ? (2x), Shariyazdanov, Andrey (2x), Lukacs, Peter (2x), Rantanen, Yrjo A. (2x), McCormick, James (1x), Demauro, J (1x)

9.Qe2 — 6.6% (33 parties)

Ambassadeurs : Reshevsky, Samuel (2x), Mecking, Henrique (2x), Polugaevsky, Lev (2x), Schreiner, Till (2x), Simon Cobo, Enrique (1x), Bolbochan, J. (1x), Addison, Wiliam G (1x), Dolgitser, Konstantin (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.cxd5	9.b4	9.b3	9.Qe2
<1800	5	60%	20%	—	—
1800-2200	120	44%	36%	6%	8%
2200-2600	273	39%	36%	12%	6%
2600+	38	26%	53%	8%	11%

Évolution par décennie (% des parties)

Décennie	N parties	9.cxd5	9.b4	9.b3	9.Qe2
1950s	2	—	50%	—	—
1960s	11	9%	64%	—	18%
1970s	22	14%	68%	—	14%
1980s	44	57%	34%	2%	2%
1990s	95	29%	37%	19%	8%
2000s	78	51%	22%	9%	4%
2010s	212	41%	39%	9%	7%
2020s	35	40%	46%	6%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.cxd5	41%	40%	▼ -0.6%
9.b4	39%	46%	▲ +6.6%
9.b3	9%	6%	▼ -3.7%
9.Qe2	7%	3%	▼ -4.2%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 3 parties
Kramnik, Vladimir — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

9.cxd5 — 39.5% (197 parties)

1961 — Banfalvi, Sander vs Fazekas, Stephan — 1-0 — Debrecen HUN
1975 — Tarjan, James vs Silman, Jeremy — 1/2-1/2 — Berkeley
1978 — Lind, Anders vs Andeer, Stefan — 0-1 — ?
1979 — Knaak, Rainer vs Beliavsky, Alexander G — 1-0 — Novi Sad SRB
1980 — Gligoric, Svetozar vs Stean, Michael F — 1/2-1/2 — Baden-Baden GER

9.b4 — 37.9% (189 parties)

1958 — Zhukhovitsky, Samuel vs Sokolsky, Alexey — 1-0 — Baku AZE
1961 — Perez Perez, Francisco Jose vs Pachman, Ludek — 1/2-1/2 — Oberhausen etc
1961 — Averbakh, Yuri L vs Taimanov, Mark — 1/2-1/2 — Baku ch-URS
1962 — Olafsson, Fridrik vs Bisguier, Arthur B — 1/2-1/2 — Stockholm SWE
1962 — Portisch, Lajos vs Bolbochan, J. — 1/2-1/2 — Stockholm SWE

9.b3 — 9.6% (48 parties)

1980 — McCormick, James vs Demauro, J — 0-1 — Seattle, WA USA
1990 — Mega R vs ? — 0-1 — 5+11
1991 — Eriksson, Johan vs Hellsten, Johan — 0-1 — Helsingborg
1991 — Speelman, Jon S vs Chandler, Murray G — 1-0 — Hastings ENG
1992 — Strautins, Uldis vs Livie, Douglas M. — 1-0 — corr ICCF

9.Qe2 — 6.6% (33 parties)

1962 — Simon Cobo, Enrique vs Bolbochan, J. — 1/2-1/2 — Olympiad Varna BUL
1969 — Addison, Wiliam G vs Reshevsky, Samuel — 1/2-1/2 — New York, NY USA
1977 — Mecking, Henrique vs Polugaevsky, Lev — 0-1 — Luzern 2
1977 — Mecking, Henrique vs Polugaevsky, Lev — 0-1 — Lucerne SUI
1979 — Gofshtein, Leonid vs Salov, Sergej — 0-1 — Beltsy

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	● b2	● c7
Chaînes	● b2→a3, f2→e3, e3→d4	● e6→d5, a7→b6, c7→b6, f7→e6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bd3	● Bd3 Actif (mob. 7)
Bd6		● Bd6 Actif (mob. 8)
Bb7		● Bb7 Ok (mob. 3)
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	fermé
Ruptures	● c4-c5, ● e3-e4	● …e6-e5

Partie
1961 Baku ch-URS – Round 1 – Averbakh, Yuri L – 1/2-1/2 – Taimanov, Mark E – G6 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Nc3 Bb4 6. Bd3 O-O 7. O-O d5 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
1961 Debrecen – Round 7 – Banfalvi, Sander – 1-0 – Fazekas, Stephan – G44 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. a3 Bd6 9. cxd5 exd5 10. Qc2 c5
1961 Oberhausen etc – Round 10 – Perez Perez, Francisco Jose – 1/2-1/2 – Pachman, Ludek – G241 1. d4 Nf6 2. c4 e6 3. e3 d5 4. Nc3 Bb4 5. Bd3 O-O 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
1962 Erevan ch-URS – Round 1 – Mikenas, Vladas – 0-1 – Bannik, Anatolij – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. a3 Bd6 9. Nb5 dxc4 10. Bxc4 Be7
1962 Olympiad Varna BUL – Round 6 – Simon Cobo, Enrique – 1/2-1/2 – Bolbochan, J. – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O d5 8. a3 Bd6 9. Qe2 Ne4 10. Nb5 dxc4
1962 Stockholm Interzonal – Round 14 – Olafsson, Fridrik – 1/2-1/2 – Bisguier, Arthur B – G123 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O d5 8. a3 Bd6 9. b4 dxc4 10. Bxc4 a5
1962 Stockholm Interzonal – Round 17 – Portisch, Lajos – 1/2-1/2 – Bolbochan, J. – G148 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 d5 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
1963 URS Team Ch – Round 1 – Taimanov, Mark E – 1-0 – Buslaev, Aleksander – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
1969 New York ch-USA – Round 7 – Addison, Wiliam G – 1/2-1/2 – Reshevsky, Samuel – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. Qe2 Ne4 10. Nd2 f5
1970 IBM – Round 7 – Donner, Jan Hein – 1-0 – Ree, Hans – G54 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
1971 Hoogovens – Round 3 – Gligoric, Sofija – 1-0 – Van den Berg, Cees – G76 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
1972 Skopje ol (Men) fin-A – Round 9 – Ungureanu, Emil – 1/2-1/2 – Bisguier, Arthur B – G153 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. a3 Bd6 9. b4 dxc4 10. Bxc4 a5
42. Olympiad 2016 – Round 4.28 – Abdikafi Arab Ahmed – 1/2-1/2 – Salem, A.R. Saleh – G283 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 b6 7. O-O Bb7 8. a3 Bd6 9. b3 dxc4 10. Bxc4 Nbd7
43. Olympiad 2018 – Round 3.16 – Papaioannou, Ioannis CS – 1/2-1/2 – Bogner, Sebastian – G177 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. e3 Bb7 5. Bd3 d5 6. O-O Bd6 7. Nc3 O-O 8. a3 Nbd7 9. cxd5 exd5 10. Nb5 Be7
Amber Blindfold 2002 – Round 6 – Gelfand, Boris – 1-0 – Ljubojevic, Ljubomir – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Bd3 O-O 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. cxd5 exd5 10. b4 a6
Amber Rapidplay 1999 – Round 4 – Ivanchuk, Vasyl – 1-0 – Piket, Jeroen – G22 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. e3 Bb4 6. Bd3 O-O 7. O-O d5 8. a3 Bd6 9. cxd5 exd5 10. b4 Nbd7
Amber-rapid 20th 2011 – Round 7 – Topalov, Veselin – 1/2-1/2 – Giri, Anish – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. Qe2 c5 10. Rd1 Nbd7
Bugojno 1982 – Round 1 – Gligoric, Svetozar – 1/2-1/2 – Petrosian, Tigran V – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Bd3 O-O 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. cxd5 exd5 10. b4 a6
Erevan ch-URS 1975 – Round 1 – Gulko, Boris – 1/2-1/2 – Tal, Mikhail – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O d5 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
EU Team Ch (Men) 17th 2009 – Round 8 – Sargissian, Gabriel – 1/2-1/2 – Jakovenko, Dmitry – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 a5
Interpolis 1982 – Round 10 – Petrosian, Tigran V. – 1-0 – Browne, Walter Shawn – G47 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 Bb7 7. O-O d5 8. a3 Bd6 9. cxd5 exd5 10. b4 a6
Linares 1985 – Round 1 – Polugaevsky, Lev – 1-0 – Christiansen, Larry – G15 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. a3 Bd6 9. cxd5 exd5 10. b4 a6
Lone Pine Open 1978 – Round 7 – Portisch, Lajos – 0-1 – Petrosian, Tigran V. – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
Manila Interzonal 1990 – Round 2 – De La Torre Rodriguez, Elizabeth – 0-1 – Korchnoi, Viktor – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
Moscow 1975 – Round 1 – Spassky, Boris V. – 1/2-1/2 – Tal, Mikhail – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
SuperUnited Blitz 2023 – Round 5.3 – Lupulescu, Constantin – 0-1 – Caruana, Fabiano – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
SuperUnited Rapid 2023 – Round 7.4 – Lupulescu, Constantin – 1/2-1/2 – Firouzja, Alireza – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Bd6 9. b4 dxc4 10. Bxc4 Nbd7
Tal Memorial Blitz 2008 – Round 12 – Kramnik, Vladimir – 1-0 – Morozevich, Alexander – G106 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 b6 7. O-O Bb7 8. a3 Bd6 9. cxd5 exd5 10. b4 a6

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