E52d — Nimzo-Indian: Main Line, 6…b6 7.O-O Bb7 8.a3

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 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur les cases fortes b5 et e5, un fou actif en d3 et la paire de fous.

Côté adverse. Une pièce en prise (le fou en b4).

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. Bd2 (Développer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur un avant-poste en e4, un fou actif en b4 et la paire de fous.

Côté adverse. Le fou enfermé en c1.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8 et la tour a8).

Plans. ...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	● b2→a3, f2→e3, e3→d4	● e6→d5, a7→b6, c7→b6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v0)	—
Cases faibles	● e4	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (4v2)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bd3	● Bd3 Actif (mob. 7)
Bb4		● Bb4 Actif (mob. 6)
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
1928 Hastings Premier /29 9th – Round 5 – Yates, Frederic D – 1-0 – Colle, Edgar – G22 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb7 5. e3 Bb4 6. Bd3 O-O 7. O-O d5 8. a3 Bxc3 9. bxc3 Nbd7 10. cxd5 exd5
1950 Moskou ch-URS – Round 1 – Borisenko, Georgy K – 0-1 – Alatortsev, Vladimir N. – G39 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 Bxc3 9. bxc3 dxc4 10. Bxc4 Nc6
1952 POL-ch10 – Round 18 – Wozniak, Kazimierz – 1-0 – Szukszta, Janus – G130 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. a3 Be7 9. b4 c5 10. bxc5 bxc5
1953 Candidats Tournament – Round 6 – Taimanov, Mark E – 1-0 – Averbakh, Yuri L – G36 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 Bxc3 9. bxc3 dxc4 10. Bxc4 c5
1954 Argentina – Round 2 – Panno, Oscar – 1/2-1/2 – Averbakh, Yuri L – G4 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 Bxc3 9. bxc3 dxc4 10. Bxc4 c5
1954 Kiev ch-URS – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Ragozin, Viacheslav – G65 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 b6 7. O-O Bb7 8. a3 Bxc3 9. bxc3 Nbd7 10. a4 a5
1954 Mar del Plata – Round 10 – Castillo Larenas, Mariano – 0-1 – Eliskases, Erich – G79 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 Be7 9. cxd5 exd5 10. Ne5 Nbd7
1954 Mar del Plata – Round 6 – Panno, Oscar – 1/2-1/2 – Eliskases, Erich – G47 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 Be7 9. b3 Nbd7 10. Bb2 Ne4
1954 Mar del Plata/B.Aires zt it-17 – Round 10 – Panno, Oscar – 1-0 – De Souza Mendes, Joao – 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 Be7 9. b3 Nbd7 10. Bb2 Ne4
1954 URS Ch, semi final – Round 1 – Kasparian, Genrikh – 0-1 – Sokolsky, Alexey – G11 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 d5 5. Bd3 O-O 6. Nf3 b6 7. O-O Bb7 8. a3 Be7 9. Qe2 Ne4 10. Bd2 a6
1956 Leningrad ch-URS – Round 1 – Taimanov, Mark E – 1-0 – Zurakhov, Vladlen Y – G17 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 b6 7. O-O Bb7 8. a3 Be7 9. cxd5 exd5 10. b4 a6
1956 URS Ch sf – Round ? – Rovner, Dmitry – 1-0 – Kondratiev, Pavel E – G12 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 b6 7. O-O Bb7 8. a3 Be7 9. b4 c5 10. bxc5 bxc5
1957 DDR Ch 08th – Round 5 – Pakulla, Rudolf – 1/2-1/2 – Fuchs, Reinhart – G29 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 Bxc3 9. bxc3 dxc4 10. Bxc4 Nbd7
1957 Mar del Plata – Round 3 – Lombardy, William J – 1-0 – Mangini, Jose Henrique de Mello – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 b6 7. O-O Bb7 8. a3 Bxc3 9. bxc3 Nbd7 10. cxd5 exd5
1957 USA Ch Open 58th – Round 4 – Brandts, Paul – 1/2-1/2 – Bisguier, Arthur B – G27 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb4 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Nbd7
1958 DDR-BUL m – Round 3.4 – Bertholdt, Dieter – 1-0 – Padevsky, Nikola – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 d5 7. O-O O-O 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Nc6
1958 Torneo de las Americas 1st – Round 4 – Najdorf, Miguel – 1-0 – Argiles Perez, Jaime – G21 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 Be7 9. b4 Nbd7 10. Bb2 c5
1962 Capablanca Memorial – Round 14 – Najdorf, Miguel – 1-0 – Acevedo Ortega, Rodrigo Andres – G136 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 Be7 9. b4 dxc4 10. Bxc4 Nbd7
1964 Buenos Aires – Round 12 – Najdorf, Miguel – 1-0 – Bielicki, Carlos – G105 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 Bxc3 9. bxc3 dxc4 10. Bxc4 Nc6
1964 Tel Aviv olm fin-A – Round 8 – Kraidman, Yair – 1-0 – Bouwmeester, Hans – G169 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 Bxc3 9. bxc3 dxc4 10. Bxc4 Nbd7
1965 Hoogovens – Round 4 – Portisch, Lajos – 1/2-1/2 – Bobotsov, Milko G – G39 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 Be7 9. b4 c5 10. bxc5 dxc4
1965 Hoogovens – Round 8 – Geller, Efim P – 1/2-1/2 – Bobotsov, Milko G – G62 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 Be7 9. cxd5 exd5 10. b4 Nbd7
1967 Hoogovens – Round 4 – Gligorić, Svetozar – 0-1 – Ree, Hans – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 b6 6. Nf3 d5 7. O-O Bb7 8. a3 Be7 9. cxd5 exd5 10. b4 Nbd7
1968 Amsterdam m1 – Round 1 – Shamkovich, Leonid – 1/2-1/2 – Ree, Hans – G1 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 Be7 9. cxd5 exd5 10. Ne5 c5
1969 Capablanca Memorial – Round 15 – Gligorić, Svetozar – 1/2-1/2 – Donner, Jan-Hein – G110 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 Be7 9. cxd5 exd5 10. b4 Ne4
1969 Capablanca Memorial – Round 3 – Donner, Jan-Hein – 1-0 – Panno, Oscar – G20 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. a3 Be7 9. b4 dxc4 10. Bxc4 c5
1971 Hoogovens – Round 5 – Gligoric, Svetozar – 1/2-1/2 – Donner, Jan Hein – G74 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 Be7 9. cxd5 exd5 10. b4 Ne4
American Cup Blitz 2022 – Round 6.4 – Krush, Irina – 0-1 – Robson, Ray – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 b6 6. Nf3 Bb7 7. O-O d5 8. a3 Be7 9. b4 dxc4 10. Bxc4 a6

E52d — 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

Eval: [+0.20]

Les coups candidats

8…Bd6 — 63.3% (494 parties) →

Ambassadeurs : Gligoric, Svetozar (11x), Portisch, Lajos (8x), Polugaevsky, Lev (6x), Lukacs, Peter (6x), Neverov, Valeriy (6x), Donner, Jan-Hein (5x), Petrosian, Tigran V. (5x), Ftacnik, Lubomir (5x)

8…Bxc3 — 21.8% (170 parties)

Ambassadeurs : Averbakh, Yuri L (4x), Huebner, Robert (4x), Gligoric, Svetozar (3x), Panno, Oscar (2x), Taimanov, Mark (2x), Padevsky, Nikola (2x), Kashlinskaya, Alina (2x), Giuriato, Sergio (2x)

8…Be7 — 13.3% (104 parties)

Ambassadeurs : Panno, Oscar (3x), Ree, Hans (3x), Donner, Jan-Hein (3x), Taimanov, Mark (2x), Eliskases, Erich (2x), Bobotsov, Milko G (2x), Najdorf, Miguel (2x), Gligorić, Svetozar (2x)

8…dxc4 — 1.7% (13 parties)

Ambassadeurs : Waldhauser, Guenter (1x), Szenczy, Sandor (1x), Schuster, Jan (1x), Ripatti, M. (1x), Garcia Gonzales, Guillermo (1x), Medina-Garcia, Antonio (1x), Inkiov, Ventzislav (1x), Maninang, Rafaelito (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…Bd6	8…Bxc3	8…Be7	8…dxc4
<1800	15	33%	47%	20%	—
1800-2200	207	57%	26%	15%	1%
2200-2600	377	71%	17%	10%	2%
2600+	41	93%	7%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8…Bd6	8…Bxc3	8…Be7	8…dxc4
1920s	1	—	100%	—	—
1950s	23	9%	48%	43%	—
1960s	27	41%	30%	30%	—
1970s	40	55%	28%	15%	2%
1980s	61	72%	13%	8%	7%
1990s	126	75%	15%	10%	1%
2000s	128	61%	25%	12%	2%
2010s	317	66%	21%	11%	1%
2020s	58	57%	22%	21%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…Bd6	66%	57%	▼ -9.3%
8…Bxc3	21%	22%	▲ +1.3%
8…Be7	11%	21%	▲ +9.3%
8…dxc4	1%	0%	▼ -1.3%

Joueurs célèbres

Champions du monde dans cette position

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

Parties historiques

8…Bd6 — 63.3% (494 parties)

1954 — Balcarek, Wiktor vs Sokolsky, Alexey — 1-0 — Cracow
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 — Banfalvi, Sander vs Fazekas, Stephan — 1-0 — Debrecen HUN
1961 — Averbakh, Yuri L vs Taimanov, Mark — 1/2-1/2 — Baku ch-URS

8…Bxc3 — 21.8% (170 parties)

1928 — Yates, Frederic D vs Colle, Edgar — 1-0 — Hastings Town Hall
1950 — Borisenko, Georgy K vs Alatortsev, Vladimir N. — 0-1 — Moskou ch-URS
1953 — Taimanov, Mark vs Averbakh, Yuri L — 1-0 — Zurich SUI
1953 — Taimanov, Mark vs Averbakh, Yuri L — 1-0 — Zurich SUI
1954 — Panno, Oscar vs Averbakh, Yuri L — 1/2-1/2 — ARG-URS Buenos Aires

8…Be7 — 13.3% (104 parties)

1952 — Wozniak, Kazimierz vs Szukszta, Janus — 1-0 — Katowice POL
1953 — Thorban W vs Auer, Guenter — 1-0 — corr GER
1954 — Kasparian, Genrikh vs Sokolsky, Alexey — 0-1 — Erevan ARM
1954 — Panno, Oscar vs Eliskases, Erich — 1/2-1/2 — Mar del Plata ARG
1954 — Panno, Oscar vs De Souza Mendes, Joao — 1-0 — Mar del Plata/Buenos Aires

8…dxc4 — 1.7% (13 parties)

1974 — Garcia Gonzales, Guillermo vs Medina-Garcia, Antonio — 1-0 — Las Palmas ESP
1982 — Inkiov, Ventzislav vs Maninang, Rafaelito — 1-0 — Lucerne SUI
1986 — Schuster, Jan vs Ripatti, M. — 1/2-1/2 — corr Baltic tt
1988 — Emma, Jaime vs Soppe, Guillermo — 0-1 — Buenos Aires ch-ARG
1989 — Waldhauser, Guenter vs Szenczy, Sandor — 1-0 — Austria

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