E52c — Nimzo-Indian: Main Line, 6…b6 7.O-O Bb7

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6 7.O-O Bb7 * ○ Trait aux Blancs

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.

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	● 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
1946 ENG-URS radio – Round 1 – Abrahams, Gerald – 1/2-1/2 – Ragozin, Viacheslav – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. Ne5 Nbd7 9. cxd5 Nxe5 10. dxe5 Bxc3
1949 Moscow Ch – Round 1 – Konstantinopolsky, Alexander – 1/2-1/2 – er-Steinsapir, Yu – G41 1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 b6 7. O-O Bb7 8. Bd2 Bd6 9. Rc1 a6 10. Qc2 Nc6
1949 URS Ch, semi final – Round 1 – Furman, Slavomir – 1-0 – Simagin, Vladimir – G11 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Nf3 e6 5. e3 Bb4 6. Bd3 O-O 7. O-O d5 8. Bd2 Be7 9. Qe2 c5 10. dxc5 bxc5
1951 Moskou ch-URS – Round 1 – Taimanov, Mark E – 1-0 – Averbakh, Yuri L – G58 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 c5
1952 Hungary Ch – Round 3 – Szabo, Ladislav – 1-0 – Gereben, Erno – G12 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. Bd3 b6 7. O-O Bb7 8. Qe2 Nbd7 9. a3 Bxc3 10. bxc3 Re8
1952 Moskou ch-URS – Round 1 – Geller, Efim P – 1-0 – Keres, Paul – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 O-O 6. Bd3 d5 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 c5 10. a3 cxd4
1952 Saltsjobaden Interzonal – Round 11 – Geller, Efim P – 1/2-1/2 – Matanovic, Aleksandar – G102 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. Bd2 c5 9. cxd5 exd5 10. Rc1 Nc6
1953 Candidats Tournament – Round 19 – Najdorf, Miguel – 1/2-1/2 – Taimanov, Mark E – G121 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 c5
1953 Candidats Tournament – Round 7 – Szabo, Laszlo – 1/2-1/2 – Taimanov, Mark E – G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Qe2 Nbd7 9. a3 Bxc3 10. bxc3 c5
1954 Gorki ch22-SU sf – Round 1 – Liavdansky, Vladimir – 0-1 – Geller, Efim P – G6 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. e3 Bb4 6. Bd3 O-O 7. O-O d5 8. Bd2 c5 9. a3 dxc4 10. Bxc4 Bxc3
1954 Olympiad final A – Round 1 – Gligoric, Sofija – 1/2-1/2 – Smyslov, Vladimir – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 c5
1954 Olympiad final A – Round 11 – Porath, Yosef – 1-0 – Szabo, Ladislav – G114 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Qe2 c5 9. dxc5 bxc5 10. Rd1 Qe7
1954 Prague zt Prague CZE – Round 6 – Sajtar, Jaroslav – 1/2-1/2 – Filip, Marius Liviu – 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. Bd2 dxc4 9. Bxc4 Nbd7 10. a3 Bxc3
1955 Buenos Aires CA – Round 8 – Gligoric, Svetozar – 0-1 – Bisguier, Arthur B – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 b6 7. O-O Bb7 8. Bd2 Be7 9. Qe2 Ne4 10. Rfd1 a6
1955 Moskou ch-URS – Round 19 – Taimanov, Mark E – 1/2-1/2 – Smyslov, Vladimir – G149 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 c5
1955 URS Ch sf Moscow RUS – Round 1 – Bellin, Bruno – 1/2-1/2 – Antoshin, Vladimir S – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 c5 10. a3 Bxc3
1957 It Gotha GER – Round 15 – Filip, Miroslav – 1/2-1/2 – Milic, Borislav – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 c5
1957 Leningrad Ch – Round 19 – Suetin, Alexey S – 1/2-1/2 – Krogius, Nikolai V – G141 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 b6 7. O-O Bb7 8. Qc2 Nbd7 9. Bd2 dxc4 10. Bxc4 c5
1960 BUL-ch14 Sofia BUL – Round 19 – Kolarov, Atanas S. – 1/2-1/2 – Bobotsov, Milko G – 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. a4 Be7 9. b3 c5 10. Bb2 Nc6
1960 Leipzig olm fin-A – Round 7 – Byrne, Robert E – 1-0 – Kramer, Haije – G121 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. Bd2 dxc4 9. Bxc4 c5 10. a3 Bxc3
1960 Leningrad ch-URS – Round 2 – Kortchnoi, V. – 1/2-1/2 – Taimanov, M. – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O d5 8. Qb3 Nc6 9. Rd1 a6 10. a3 Bd6
1961 Baku ch-URS – Round 11 – Bronstein, David I – 1/2-1/2 – Shamkovich, Leonid – G102 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. Bd3 b6 7. O-O Bb7 8. Ne2 Nbd7 9. b3 Qe7 10. Bb2 Bd6
1961 CSR Ch – Round 8 – Filip, Miroslav – 1/2-1/2 – Pachman, Ludek – G73 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 Nbd7 10. a3 Bxc3
1961 Maroczy Memorial Budapest HUN – Round 1 – Donner, Jan-Hein – 0-1 – Simagin, Vladimir – 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. Qe2 c5 9. Rd1 Nc6 10. a3 Bxc3
1961 Oberhausen etc – Round 1 – Niephaus, Walter – 1/2-1/2 – Milic, Bozidar – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O d5 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 a6
1961 Sarajevo 04th – Round 1 – Sofrevski, Jovan – 1/2-1/2 – Milic, Bozidar – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O d5 8. Bd2 dxc4 9. Bxc4 Nbd7 10. a3 Bd6
1963 Alekhine Memorial – Round 2 – Antoshin, Vladimir S – 1/2-1/2 – Tal, Mikhail – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 c5
1964 Tel Aviv olm fin-A – Round 4 – Alvarez Mora, Jorge Mario – 1-0 – Mohrlok, Dieter – G77 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Bb4+ 6. Nc3 O-O 7. O-O d5 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 c5
1965 Noordwijk – Round 1 – Donner, Jan-Hein – 1/2-1/2 – Bobotsov, Milko G – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 Be7 9. Qe2 Nbd7 10. Rfd1 c5
1966 Hoogovens 28th – Round 10 – Donner, Jan-Hein – 1-0 – Van Scheltinga, Theo – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Qe2 Nbd7 9. Rd1 c5 10. Bd2 Qe7
1966 Hoogovens 28th – Round 7 – Bilek, Istvan – 1-0 – Cuijpers, Frans Andre – G20 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 b6 5. e3 O-O 6. Bd3 d5 7. O-O Bb7 8. Bd2 Be7 9. Qe2 Ne4 10. cxd5 exd5
1966 La Habana olm prel – Round 1 – Galeb, Antoine – 0-1 – Cornelis, Frans B – G10 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Bb4 5. e3 O-O 6. Bd3 b6 7. O-O Bb7 8. Qe2 Nbd7 9. cxd5 exd5 10. Bd2 a6
1967 Palma de Mallorca – Round 14 – Diez del Corral, Jesus – 1/2-1/2 – Donner, Jan-Hein – G103 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. Qe2 c5 9. a3 cxd4 10. axb4 dxc3
1967 Sochi – Round 13 – Lein, Andreas – 1-0 – Liebert, Heinz – G103 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O d5 8. Qe2 Nbd7 9. Rd1 Ne4 10. Qc2 Ndf6
1967 Sochi – Round 9 – Zaitsev, Alexander – 1-0 – Shamkovich, Leonid – G73 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. e3 Bb4 6. Bd3 O-O 7. O-O d5 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Qe2 Bxc3
1967 Venice – Round 7 – Magrin, Antonio – 0-1 – Donner, Jan – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Ne2 Bd6 9. Ne5 c5 10. f4 cxd4
1968 Bamberg – Round 1 – Toran Albero, Roman – 1/2-1/2 – Bobotsov, Milko G – 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. Bd2 a6 9. Nxd5 Nxd5 10. cxd5 Bxd2
1968 WchT U26 – Round 1 – Brinck-Claussen, Bjorn – 0-1 – Spassov, Liuben – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 c5 9. cxd5 cxd4 10. exd4 Nxd5
1969 Palma de Mallorca – Round 1 – Pomar Salamanca, Arturo – 1/2-1/2 – Bobotsov, Milko G – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 dxc4 9. Bxc4 Nbd7 10. Rc1 a6
1969 Schwerin – Round 1 – Liebert, Heinz – 1/2-1/2 – Neukirch, Detlef – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nf3 Bb7 6. Bd3 O-O 7. O-O d5 8. Qe2 Nbd7 9. cxd5 exd5 10. Bd2 Re8
1970 Palma de Mallorca Interzonal – Round 7 – Filip, Miroslav – 1/2-1/2 – Reshevsky, Samuel – G95 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. Bd2 Bd6 9. Rc1 a6 10. cxd5 exd5

E52c — 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

Eval: [+0.26]

Les coups candidats

8.cxd5 — 60.3% (1688 parties) →

Ambassadeurs : Knaak, Rainer (9x), Neiksans, Arturs (8x), Batsiashvili, Nino (8x), Navara, David (8x), Tudor, Vasile (8x), Jussupow, Artur (7x), Korchnoi, Viktor (7x), Babula, Vlastimil (7x)

8.a3 — 27.9% (781 parties) →

Ambassadeurs : Gligoric, Svetozar (16x), Portisch, Lajos (9x), Donner, Jan-Hein (8x), Huebner, Robert (7x), Neverov, Valeriy (7x), Taimanov, Mark (6x), Polugaevsky, Lev (6x), Panno, Oscar (5x)

8.Bd2 — 5.8% (163 parties)

Ambassadeurs : Taimanov, Mark (4x), Geller, Efim P. (4x), Bobotsov, Milko G (3x), Filip, Miroslav (3x), Reshevsky, Samuel (3x), Portisch, Ferenc (3x), Smyslov, Vladimir (2x), Keres, Paul (2x)

8.Qe2 — 2.8% (77 parties)

Ambassadeurs : Szabo, Ladislav (3x), Donner, Jan-Hein (3x), Liebert, Heinz (2x), Szabo, Laszlo (2x), Polugaevsky, Lev (2x), Huebner, Robert (2x), Korchnoi, Viktor (2x), Van der Werf, Mark (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.cxd5	8.a3	8.Bd2	8.Qe2
<1800	46	48%	33%	4%	4%
1800-2200	615	54%	34%	5%	3%
2200-2600	1433	64%	26%	5%	2%
2600+	157	70%	26%	1%	2%

Évolution par décennie (% des parties)

Décennie	N parties	8.cxd5	8.a3	8.Bd2	8.Qe2
1920s	3	67%	33%	—	—
1930s	4	100%	—	—	—
1940s	4	25%	—	50%	—
1950s	92	54%	25%	14%	3%
1960s	109	44%	25%	17%	6%
1970s	118	53%	34%	8%	3%
1980s	196	56%	31%	8%	2%
1990s	351	53%	36%	6%	2%
2000s	494	60%	26%	7%	4%
2010s	1164	64%	27%	3%	2%
2020s	263	70%	22%	4%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.cxd5	64%	70%	▲ +6.4%
8.a3	27%	22%	▼ -5.2%
8.Bd2	3%	4%	▲ +0.8%
8.Qe2	2%	2%	-0.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Ju, Wenjun — 4 parties
Smyslov, Vladimir — 3 parties
Euwe, Max — 2 parties
Botvinnik, Mikhail — 1 partie
Karpov, Aleksandr — 1 partie
Carlsen, Magnus — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

8.cxd5 — 60.3% (1688 parties)

1924 — Van Kranendonk, AG. vs Kroone, Gerard — 0-1 — NED
1928 — Bogoljubow, Efim vs Euwe, Max — 1-0 — The Netherlands
1931 — Alatortsev, Vladimir N. vs Lisitsin, Georgy — 0-1 — Moskou ch-URS
1931 — Horowitz, Albert Israel vs Albert-Kevitz, Alexan — 1-0 — New York, NY USA
1931 — Horowitz, Albert Israel vs Kevitz, Alexander — 1-0 — New York, NY USA

8.a3 — 27.9% (781 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
1952 — Wozniak, Kazimierz vs Szukszta, Janus — 1-0 — Katowice POL
1953 — Taimanov, Mark vs Averbakh, Yuri L — 1-0 — Zurich SUI
1953 — Taimanov, Mark vs Averbakh, Yuri L — 1-0 — Zurich SUI

8.Bd2 — 5.8% (163 parties)

1949 — Furman, Slavomir vs Simagin, Vladimir — 1-0 — Vilnius LTU
1949 — Konstantinopolsky, Alexander vs er-Steinsapir, Yu — 1/2-1/2 — Moscow RUS
1951 — Taimanov, Mark vs Averbakh, Yuri L — 1-0 — Moskou ch-URS
1952 — Geller, Efim P. vs Keres, Paul — 1-0 — Moskou ch-URS
1952 — Geller, Efim P. vs Keres, Paul — 1-0 — Moscow RUS

8.Qe2 — 2.8% (77 parties)

1952 — Szabo, Ladislav vs Gereben, Erno — 1-0 — Budapest HUN
1953 — Szabo, Laszlo vs Taimanov, Mark — 1/2-1/2 — Zurich SUI
1954 — Porath, Yosef vs Szabo, Ladislav — 1-0 — Amsterdam NED
1961 — Donner, Jan-Hein vs Simagin, Vladimir — 0-1 — Maroczy mem Budapest HUN
1964 — Oliyarnyk, W. vs Sarosy, Zoltan L — 1/2-1/2 — Toronto CAN

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