E52g — Nimzo-Indian: Main Line, 6…b6 7.O-O Bb7 8.cxd5 exd5

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 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte b5….

Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes b5 et e5, 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) ; h3 (Empêcher ...Bg4).

♚ 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	● b5 (2v0), ● e5 (2v0)	—
Cases faibles	● e4	—
Centre	● d4 (2v0), ● e5 (2v0)	● 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
1931 Moskou ch-URS – Round 1 – Alatortsev, Vladimir N. – 0-1 – Lisitsin, Georgy – G40 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. Qa4 Be7 10. b4 a6
1954 Liberation – Round 15 – Bronstein, David I – 1/2-1/2 – Barcza, Gedeon – G31 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. Ne2 Nbd7 10. b3 Qe7
1955 Argentina – Round 7 – Idigoras, Gregorio – 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. cxd5 exd5 9. Bd2 Re8 10. Qa4 Bd6
1955 Gothenburg Interzonal – Round 1 – Ilivitsky, Georgy A – 1-0 – Unzicker, Wolfgang – G3 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Qc2 Nbd7 10. Bd2 a6
1955 Hoechst ch-GER – Round 1 – Schuster, Thomas – 1/2-1/2 – Niephaus, Walter – 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. cxd5 exd5 9. Bd2 Nbd7 10. Rc1 a6
1955 URS Ch sf Moscow RUS – Round 1 – Lein, Anatoly – 1/2-1/2 – Antoshin, Vladimir S – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Bd3 O-O 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Bd2 a6 10. Rc1 Nbd7
1955 URS-USA telex – Round 3 – Smyslov, Vladimir – 1-0 – Bisguier, Arthur B – 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. Bd2 Nbd7 10. Rc1 a6
1955 Zagreb – Round 13 – Gligorić, Svetozar – 1-0 – Pirc, Vasja – G132 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. Bd2 a6 10. Rc1 Nbd7
1955 Zagreb – Round 15 – Gligoric, Sofija – 1/2-1/2 – Filip, Marius Liviu – G150 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. Bd2 Nbd7 10. Rc1 a6
1957 Leningrad Ch – Round 19 – Tolush, Alexander V – 1/2-1/2 – Nikitin, Aleksander S – G144 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. Bd2 Nbd7 10. Ne5 Qe7
1957 URS Ch, semi final – Round 17 – Furman, Slavomir – 1/2-1/2 – Sokolsky, Alexey – G152 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Bd3 O-O 6. Nf3 b6 7. O-O Bb7 8. cxd5 exd5 9. Bd2 Bd6 10. Rc1 a6
1958 Portoroz Interzonal – Round 8 – Gligoric, Svetozar – 1/2-1/2 – Petrosian, Tigran V – G73 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. Bd2 a6 10. Rc1 Bd6
1958 Riga ch-URS – Round 3 – Kotov Lundqvist, Alex – 0-1 – Averbakh, Yuri L – G99 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. Bd2 Nbd7 10. Ne5 Nxe5
1959 Belgrade – Round 1 – Jovanic R – 0-1 – Nedeljkovic, Srecko M – G18 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. Bd2 Bd6 10. Nb5 Be7
1959 Kragujevac ch14-YUG – Round 1 – Gligorić, Svetozar – 1-0 – Vukovic, Sava – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. e3 b6 6. Bd3 Bb7 7. O-O d5 8. cxd5 exd5 9. Bd2 a6 10. Ne2 Bd6
1959 Santiago – Round 6 – Letelier Martner, Rene – 0-1 – Jauregui, Carlos – G35 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. Bd2 Re8 10. Qa4 Bf8
1960 Leipzig olm fin-A – Round 10 – Donner, Jan-Hein – 1/2-1/2 – Bobotsov, Milko G – G174 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. Bd2 a6 10. Ne5 Bd6
1961 Oberhausen etc – Round 7 – Gligorić, Svetozar – 1/2-1/2 – Tal, Mikhail – G175 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. Bd2 Nbd7 10. Rc1 a6
1961 Santa Fe – Round 3 – Byrne, Ray – 1-0 – Casabella, Miguel Angel – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 d5 7. O-O O-O 8. cxd5 exd5 9. Qc2 a6 10. Ne5 Bd6
1962 Hoogovens – Round 8 – Donner, Jan-Hein – 1/2-1/2 – Bisguier, Arthur B – G36 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. Qc2 Re8 10. Ne5 Nbd7
1962 Sarajevo – Round 7 – Gligorić, Svetozar – 1-0 – Bilek, Istvan – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 b6 6. Nf3 Bb7 7. O-O d5 8. cxd5 exd5 9. Bd2 Re8 10. Rc1 a6
1965 Hamburg etc – Round 5 – Van den Berg, Cees – 0-1 – Korchnoi, Viktor – G55 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. Bd2 Bd6 10. Rc1 a6
1966 Buenos Aires ch-ARG – Round 8 – Pelikan, Anna – 1/2-1/2 – Behrensen, Jorge – G24 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. Ne1 Nbd7 10. a3 Bd6
1966 CSR Ch Int 1st – Round 5 – Filip, Miroslav – 1/2-1/2 – Novak, Ervin – G24 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Nf3 O-O 5. e3 b6 6. Bd3 Bb7 7. O-O d5 8. cxd5 exd5 9. Bd2 Ba6 10. Bxa6 Nxa6
1967 Vrnjacka Banja zt – Round 1 – Gunnarsson, Gudmundur – 0-1 – Zuidema, Coen – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nf3 Bb7 6. Bd3 O-O 7. O-O d5 8. cxd5 exd5 9. Bd2 Nbd7 10. Rc1 a6
1967 WchT U26 14th – Round ? – Farago, Ivan – 1/2-1/2 – Thor, Jon Th – 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. Bd2 a6 10. Ne5 Bd6
1967 Zierikzee ch-NED – Round 1 – Bouwmeester, Hans – 1/2-1/2 – Van Scheltinga, Theo – 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. Bd2 a6 10. Ne5 Nbd7
1968 Belgrade – Round 1 – Bukic, Enver – 1-0 – Martinovic, Slobodan – G24 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Bb4+ 6. Nc3 O-O 7. O-O d5 8. cxd5 exd5 9. Bd2 c5 10. a3 Bxc3
1968 Capablanca Memorial – Round 1 – Rodriguez Gonzales, Angie Kelly – 1/2-1/2 – O'Kelly de Galway, Alberic – G19 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. Bd2 Bd6 10. Rc1 c5
1968 IBM I – Round 10 – Kotov Lundqvist, Alex – 0-1 – Ree, Hans – 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. cxd5 exd5 9. Ne2 Bd6 10. Ng3 g6
1968 Lugano olm - Round 1 - Kraidman, Yair - 0-1 - Korchnoi, Viktor - G102 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. Bd2 Bd6 10. Rc1 a6
1968 WchT U26 – Round 1 – Keene, Raymond D – 1-0 – Seuss, Oswald – G14 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. Bd2 Nbd7 10. Rc1 a6
1969 Stary Smokovec – Round 10.3 – Kozma, Julius – 1/2-1/2 – Plachetka, Jan – 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. cxd5 exd5 9. Bd2 a6 10. Ne5 Bd6
1970 Palma de Mallorca Interzonal – Round 14 – Ivkov, Borislav – 1/2-1/2 – Filip, Miroslav – 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. cxd5 exd5 9. Bd2 Bd6 10. Nb5 Be7
1972 Skopje ol (Men) fin-A – Round 12 – Pytel, Krzysztof – 1/2-1/2 – Filip, Miroslav – G157 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. Bd2 Bd6 10. Ne5 c5
41. Olympiad Open 2014 – Round 4.23 – Illescas Cordoba, Miguel – 1/2-1/2 – Gong, Qianyun – G274 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. Qc2 Nbd7 10. a3 Bxc3
FIDE WCh KO 2000 – Round 1.4 – Milos, Gilberto – 1-0 – Aryan Pravin Kunte – G38 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. Bd2 a6 10. Ne5 Bd6
SportAccord Blitz Men 2013 – Round 25.5 – Wang, Yue(SH) – 0-1 – Wang, Hao(ZJWZ) – G194 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. Bd2 a6 10. Rc1 Nbd7
World Rapid 2016 – Round 2.9 – Li, Chao – 1/2-1/2 – Zhigalko, Sergei – G93 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. Bd2 Bd6 10. Rc1 a6

E52g — 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

Eval: [+0.30]

Les coups candidats

9.a3 — 45.1% (820 parties) →

Ambassadeurs : Tudor, Vasile (8x), Lesiege, Alexandre (7x), Mauro, Lucio (6x), Navara, David (6x), Chatalbashev, Boris (6x), Jussupow, Artur (5x), Neiksans, Arturs (5x), Muir, Andrew J (5x)

9.Ne5 — 29.5% (537 parties) →

Ambassadeurs : Batsiashvili, Nino (8x), Knaak, Rainer (7x), Sadler, Matthew D (6x), Borisenko, Georgy K (5x), Mroczek, Jacek (5x), Goltseva, Ekaterina (5x), Lukacs, Peter (4x), Renet, Olivier (4x)

9.Bd2 — 13.5% (246 parties)

Ambassadeurs : Babula, Vlastimil (6x), Gligorić, Svetozar (5x), Sreeshwan Maralakshikari (4x), Filip, Miroslav (3x), Li, Chao b (3x), Nikitin, Aleksander S (2x), Bobotsov, Milko G (2x), Korchnoi, Viktor (2x)

9.Qc2 — 9.1% (166 parties)

Ambassadeurs : Rodriguez Rueda, Paula Andrea (3x), Junge, Wolfgang (3x), Moiseev, Oleg (2x), Danielian, Elina (2x), Ghelani Dhairya (2x), Krause, Peter (2x), Hlavica, Bretislav (2x), Van Kranendonk, AG. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.a3	9.Ne5	9.Bd2	9.Qc2
<1800	23	35%	9%	22%	30%
1800-2200	357	44%	24%	14%	15%
2200-2600	1011	49%	31%	10%	8%
2600+	115	52%	29%	10%	5%

Évolution par décennie (% des parties)

Décennie	N parties	9.a3	9.Ne5	9.Bd2	9.Qc2
1910s	1	—	100%	—	—
1920s	2	50%	—	—	50%
1930s	4	75%	—	—	—
1940s	2	—	100%	—	—
1950s	50	28%	26%	30%	12%
1960s	52	15%	37%	37%	8%
1970s	62	10%	52%	27%	6%
1980s	108	33%	44%	17%	3%
1990s	192	44%	32%	15%	5%
2000s	306	50%	21%	15%	11%
2010s	826	53%	26%	9%	10%
2020s	214	36%	41%	13%	9%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.a3	53%	36%	▼ -16.6%
9.Ne5	26%	41%	▲ +15.6%
9.Bd2	9%	13%	▲ +4.0%
9.Qc2	10%	9%	▼ -1.4%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 5 parties
Ju, Wenjun — 3 parties
Euwe, Max — 2 parties
Botvinnik, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Karpov, Aleksandr — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

9.a3 — 45.1% (820 parties)

1928 — Bogoljubow, Efim vs Euwe, Max — 1-0 — The Netherlands
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
1932 — Alatortsev, Vladimir N. vs Botvinnik, Mikhail — 0-1 — Leningrad training
1950 — Niephaus, Walter vs Sahlmann, Walter — 1/2-1/2 — Bad Pyrmont GER

9.Ne5 — 29.5% (537 parties)

1911 — Salwe, Georg vs Schlechter, Carl — 1-0 — Carlsbad CZE
1941 — Lasker, Edward vs Fine, Reuben — 0-1 — New York, NY USA
1947 — Szabo, Laszlo vs Lenner Leopold — 1-0 — Budapest HUN
1953 — Borisenko, Georgy K vs Veresov, Gavriil — 1-0 — Leningrad RUS
1953 — Furman Oman, Anze vs Antoshin, Alexander — 1-0 — Rostov on Don

9.Bd2 — 13.5% (246 parties)

1955 — Lein, Anatoly vs Antoshin, Vladimir S — 1/2-1/2 — URS-ch sf Moscow RUS
1955 — Idigoras, Gregorio vs Eliskases, Erich — 1/2-1/2 — Buenos Aires ARG
1955 — Gligorić, Svetozar vs Pirc, Vasja — 1-0 — Zagreb CRO
1955 — Smyslov, Vladimir vs Bisguier, Arthur B — 1-0 — Moscow RUS
1955 — Gligoric, Sofija vs Filip, Marius Liviu — 1/2-1/2 — Zagreb CRO

9.Qc2 — 9.1% (166 parties)

1924 — Van Kranendonk, AG. vs Kroone, Gerard — 0-1 — NED
1953 — Moiseev, Oleg vs Sokolsky, Alexey — 0-1 — Moscow RUS
1954 — Kotov Lundqvist, Alex vs Moiseev, Oleg — 1-0 — ch URS (1/2 final) Yerevan AR
1955 — Ilivitsky, Georgy A vs Unzicker, Wolfgang — 1-0 — Goteborg SWE
1956 — Najdorf, Rafael vs Eliskases — 1/2-1/2 — Mar del Plata ARG

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