E52i — Nimzo-Indian: Main Line, 6…b6 7.O-O Bb7 8.cxd5 exd5 9.Ne5

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6 7.O-O Bb7 8.cxd5 exd5 9.Ne5 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte g4….

Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes g4 et b5, un fou actif en d3, la paire de fous et la colonne semi-ouverte c.

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

Plans. Bd2 (Développer Bc1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e4.

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), un avant-poste en e4, un fou actif en b4, la paire de fous et la colonne semi-ouverte e.

Côté adverse. Le fou enfermé en c1.

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

Plans. ...Nbd7 (Développer Nb8).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● a7→b6, c7→b6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g4 (2v1), ● b5 (2v0)	—
Cases faibles	● e4	—
Centre	● d4 (1v0), ● e5 (1v0)	● d5 (3v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bd3	● Bd3 Actif (mob. 10)
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	● e3-e4	—

Partie
1911 Karlsbad – Round 1 – Salwe, Georg – 1-0 – Schlechter, Carl – G97 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 b6 7. cxd5 exd5 8. O-O Bb7 9. Ne5 Bd6 10. f4 Nbd7
1941 New York – Round ? – Lasker, Edward – 0-1 – Fine, Reuben – G38 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 b6 7. cxd5 exd5 8. O-O Bb7 9. Ne5 c5 10. f4 Nc6
1947 HUN-AUT tt – Round 2 – Szabo, Laszlo – 1-0 – Lenner Leopold – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 Bxc3
1954 Kiev ch-URS – Round 1 – Borisenko, Georgy K – 1/2-1/2 – Averbakh, Yuri L – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 a6 10. a3 Bd6
1955 Gothenburg Interzonal – Round 14 – Szabo, Ladislav – 1/2-1/2 – Filip, Marius Liviu – G131 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 a6
1955 URS Ch sf – Round 1 – Krogius, Nikolai V – 1/2-1/2 – Antoshin, Vladimir S – G28 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 a6 10. a3 Bd6
1955 Zagreb – Round 15 – Bertok, Mario Jr. – 0-1 – O'Kelly, Albéric de Galway – G148 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 a5
1956 Leningrad ch-URS – Round 1 – Tolush, Alexander – 0-1 – Antoshin, Vladimir S – G43 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d5 5. e3 O-O 6. Bd3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 c5
1956 URS Ch sf – Round ? – Geller, Alexander – 1-0 – Ragozin, Viacheslav – 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. cxd5 exd5 9. Ne5 Nbd7 10. f4 Ne4
1957 URS Ch, semi final – Round 5 – Ilivitsky, Georgy A – 1/2-1/2 – Vladimirov, Boris T – G65 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Nc3 Bb4 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 c5
1958 Hoogovens – Round 6 – O'Kelly, A. – 0-1 – Bouwmeester, Hans – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. cxd5 exd5 8. O-O Bb7 9. Ne5 Nbd7 10. f4 c5
1958 Riga ch-URS – Round 1 – Borisenko, Georgy K – 1/2-1/2 – Furman, Slavomir – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 a6 10. a3 Bd6
1959 UKR Ch – Round 21 – Shianovsky, Vladislav I – 1/2-1/2 – Bannik, Anatolij – G157 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nf3 O-O 6. Bd3 d5 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 c5
1960 Asuncion – Round 6 – Estrada Degrandi, Walter – 1/2-1/2 – Gligorić, Svetozar – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. cxd5 exd5 8. O-O Bb7 9. Ne5 a6 10. f4 c5
1960 Corr FS – Round 1 – Yudovich, Mikhail M – 1-0 – Batik, Frantisek – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 c5 10. Ne2 cxd4
1961 Oberhausen etc – Round 2 – Marovic, Drazen – 0-1 – Furman, Slavomir – G66 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O d5 8. cxd5 exd5 9. Ne5 Nbd7 10. Qa4 Bd6
1962 New York ch-USA – Round 5 – Steinmeyer, Robert – 1/2-1/2 – Bisguier, Arthur B – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. cxd5 exd5 8. Ne5 Bb7 9. O-O Nbd7 10. f4 c5
1963 Leningrad – Round 1 – Cherepkov, Alexander V – 0-1 – Korchnoi, Viktor – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. cxd5 exd5 8. Ne5 Bb7 9. O-O Bd6 10. f4 c5
1965 Corr Wch5 – Round 1 – Borisenko, Georgy K – 1-0 – Richter, Jacob – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 a6 10. a3 Bd6
1965 Hoogovens – Round 15 – Donner, Jan-Hein – 1-0 – Van Scheltinga, Theo – G112 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 a6 10. Ne2 Bd6
1965 HUN-ch21 – Round 1 – Liptay, Laszlo Dr. – 1/2-1/2 – Varnusz, Egon – G34 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. e3 Bb4 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 Ne4
1967 Moscow – Round 1 – Simagin, Vladimir – 1-0 – Razuvaev, Yuriy – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 O-O 6. Bd3 d5 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Bd6 10. f4 c5
1967 Palma de Majorca ESP – Round 16 – Lehmann, Heinz – 1/2-1/2 – Donner, Jan-Hein – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 Bd6 10. f4 c5
1968 Alma Ata ch-URS – Round 7 – Cherepkov, Alexander V – 1/2-1/2 – Kholmov, Ratmir D – G71 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 c5
1968 Corr – Round 1 – Gipslis, Aivars – 1-0 – Simagin, Vladimir – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 Bd6 10. f4 c5
1968 Lugano SUI – Round 1 – Lengyel, Laszlo – 1-0 – Beyen, Roland – G9 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. d4 b6 5. e3 O-O 6. Bd3 Bb7 7. O-O d5 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 Ne4
1969 Capablanca Memorial – Round 9 – Gligorić, Svetozar – 1/2-1/2 – Panno, Oscar – G67 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 Bd6 10. Nb5 Be7
1969 Luhacovice – Round 1 – Kozma, Julius – 0-1 – Korchnoi, Viktor – 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. cxd5 exd5 9. Ne5 Bd6 10. Nb5 Be7
30. ECC Open 2014 – Round 4.3 – Lysyj, Igor – 1/2-1/2 – Efimenko, Zahar – G80 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 c5
51. Biel GM 2018 – Round 8.3 – Navara, David – 1/2-1/2 – Georgiadis, Nico – G24 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. e3 Nf6 5. Nf3 O-O 6. Bd3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 c5
78. Tata Steel GpA 2016 – Round 3.5 – Caruana, Fabiano – 1-0 – Adams, Michael – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 c5
FIDE-Wch k.o. 1997 – Round 2.2 – Sadler, Matthew D – 1/2-1/2 – Ehlvest, Jaan – G81 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Bd6 10. f4 c5
Mar del Plata 1982 – Round 1 – Garcia Palermo, Carlos Horacio – 1-0 – Karpov, Anatoly – G32 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 d5 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Bd6 10. f4 c5
Saint Louis Rapid 2017 – Round 3.2 – Caruana, Fabiano – 1-0 – Karjakin, Sergey – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne5 c5 10. f4 Nc6

E52i — 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.cxd5 exd5 9.Ne5

Eval: [+0.30]

Les coups candidats

9…Nbd7 — 44.7% (251 parties)

Ambassadeurs : Goltseva, Ekaterina (4x), Sadler, Matthew D (3x), Zhukova, Natalia (3x), Hildebrand, Gerald (3x), Batsiashvili, Nino (3x), Antoshin, Vladimir S (2x), Tarjan, James (2x), Danner, Georg (2x)

9…Bd6 — 34.2% (192 parties)

Ambassadeurs : Knaak, Rainer (7x), Korchnoi, Viktor (4x), Farago, Ivan (4x), Simagin, Vladimir (3x), Lukacs, Peter (3x), Chuchelov, Vladimir (3x), Ehlvest, Jaan (3x), Romanov, Egor (3x)

9…c5 — 9.8% (55 parties)

Ambassadeurs : Przewoznik, Jan (2x), Kanko, Ilkka (2x), Bareev, Evgeny (2x), Mroczek, Jacek (2x), Lasker, Edward (1x), Fine, Reuben (1x), Yudovich, Mikhail M (1x), Batik, Frantisek (1x)

9…a6 — 4.8% (27 parties)

Ambassadeurs : Borisenko, Georgy K (3x), Zwaig (2x), Aguilar Petersen, Martin Alejandro (2x), Khachaturov, Andrey Andreevich (1x), Tchetchelnitski, Boris (1x), Averbakh, Yuri L (1x), Furman, Slavomir (1x), Richter, Jacob (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Nbd7	9…Bd6	9…c5	9…a6
<1800	2	100%	—	—	—
1800-2200	93	57%	28%	10%	1%
2200-2600	322	40%	39%	9%	4%
2600+	34	35%	47%	12%	3%

Évolution par décennie (% des parties)

Décennie	N parties	9…Nbd7	9…Bd6	9…c5	9…a6
1910s	1	—	100%	—	—
1940s	2	50%	—	50%	—
1950s	13	62%	—	—	23%
1960s	25	28%	32%	4%	32%
1970s	33	42%	33%	15%	9%
1980s	48	54%	27%	8%	4%
1990s	62	53%	27%	15%	2%
2000s	67	33%	51%	7%	4%
2010s	221	48%	34%	10%	1%
2020s	90	39%	37%	9%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Nbd7	48%	39%	▼ -8.6%
9…Bd6	34%	37%	▲ +2.7%
9…c5	10%	9%	▼ -1.1%
9…a6	1%	4%	▲ +3.1%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 2 parties
Ju, Wenjun — 2 parties
Karpov, Aleksandr — 1 partie

Parties historiques

9…Nbd7 — 44.7% (251 parties)

1947 — Szabo, Laszlo vs Lenner Leopold — 1-0 — Budapest HUN
1953 — Furman Oman, Anze vs Antoshin, Alexander — 1-0 — Rostov on Don
1955 — Bertok, Mario Jr. vs O'Kelly, Albéric de Galway — 0-1 — Zagreb CRO
1955 — Szabo, Ladislav vs Filip, Marius Liviu — 1/2-1/2 — Goteborg SWE
1956 — Tolush, Alexander vs Antoshin, Vladimir S — 0-1 — Leningrad ch-URS

9…Bd6 — 34.2% (192 parties)

1911 — Salwe, Georg vs Schlechter, Carl — 1-0 — Carlsbad CZE
1963 — Cherepkov, Alexander V vs Korchnoi, Viktor — 0-1 — Leningrad RUS
1967 — Simagin, Vladimir vs Razuvaev, Yuriy — 1-0 — Moscow RUS
1967 — Simagin, Vladimir vs Razuvaev, Yuri S — 1-0 — ?
1967 — Lehmann, Heinz vs Donner, Jan-Hein — 1/2-1/2 — Palma de Majorca ESP

9…c5 — 9.8% (55 parties)

1941 — Lasker, Edward vs Fine, Reuben — 0-1 — New York, NY USA
1960 — Yudovich, Mikhail M vs Batik, Frantisek — 1-0 — corr FS
1971 — Shneider, Aleksandr vs Kuhnel — 1-0 — corr EU
1972 — Heilemann, Hans-Peter vs Brilla-Banfalvi, Sandor — 0-1 — corr NBC
1974 — Toth, Bela vs Acuna Ventura, Mateo — 1-0 — corr Latin Cup II

9…a6 — 4.8% (27 parties)

1954 — Borisenko, Georgy K vs Averbakh, Yuri L — 1/2-1/2 — Kiev ch-URS
1955 — Krogius, Nikolai V vs Antoshin, Vladimir S — 1/2-1/2 — Moscow RUS
1958 — Borisenko, Georgy K vs Furman, Slavomir — 1/2-1/2 — Riga ch-URS
1960 — Estrada Degrandi, Walter vs Gligorić, Svetozar — 1/2-1/2 — Asuncion PAR
1965 — Borisenko, Georgy K vs Richter, Jacob — 1-0 — corr Wch5