E43a — Nimzo-Indian: Nimzowitsch (Fischer) Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte b5, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 5 pièces non développées (G1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Nf3 — Développer Ng1
● Bd2 — Développer Bc1
● Bd3 — Développer Bf1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Bb4 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, 4 pièces non développées (B8, C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nc6 — Développer Nb8
● ...c5 — Rupture
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E43a — Nimzowitsch (Fischer) Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6

Eval: [+0.31]

Les coups candidats

5.Ne2 — 56.6% (7848 parties) →

Ambassadeurs : Vaisser, Anatoly (32x), Knaak, Rainer (29x), Donner, Jan-Hein (28x), Korchnoi, Viktor (27x), De Firmian, Nick (24x), Cafferty, Bernard (23x), Timman, Jan H (23x), Zaja, Ivan (23x)

5.Bd3 — 30.7% (4251 parties) →

Ambassadeurs : Georgiev, Vladimir (24x), Gligoric, Svetozar (21x), Milanovic, Danilo (18x), Zsinka, Laszlo (16x), Muir, Andrew J (16x), Lukacs, Peter (15x), De Firmian, Nick (15x), Peralta, Fernando (13x)

5.Nf3 — 6.6% (908 parties) →

Ambassadeurs : Csom, Istvan (6x), Cardili, Mariano (5x), De Coverly, Roger D (5x), Bolbochan, J. (4x), Anokhin, Yuri (4x), Capablanca, Jose (3x), Minev, Nikolay N (3x), Berezhnov, Dmitry (3x)

5.Bd2 — 1.8% (248 parties)

Ambassadeurs : Chanda, Sandipan (6x), Yu, Jiangwei (6x), Kekki, Petri (5x), Grebnev, Aleksey (5x), Visakh N R (3x), Krasteva, Beloslava (3x), Kunz, Konstantin (2x), Hurme, Harri (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.Ne2	5.Bd3	5.Nf3	5.Bd2
<1800	232	43%	39%	12%	2%
1800-2200	3916	53%	32%	9%	2%
2200-2600	6986	62%	28%	4%	2%
2600+	246	61%	27%	4%	3%

Évolution par décennie (% des parties)

Décennie	N parties	5.Ne2	5.Bd3	5.Nf3	5.Bd2
1850s	1	100%	—	—	—
1910s	5	—	100%	—	—
1920s	3	33%	33%	—	33%
1930s	75	37%	31%	15%	—
1940s	85	41%	27%	8%	1%
1950s	220	62%	28%	5%	—
1960s	363	53%	32%	12%	0%
1970s	624	58%	32%	8%	0%
1980s	1041	64%	29%	5%	0%
1990s	1966	53%	36%	6%	0%
2000s	3341	51%	35%	7%	1%
2010s	4840	60%	28%	6%	2%
2020s	1294	60%	23%	5%	10%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.Ne2	60%	60%	-0.3%
5.Bd3	28%	23%	▼ -5.6%
5.Nf3	6%	5%	▼ -1.5%
5.Bd2	2%	10%	▲ +8.7%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 10 parties
Smyslov, Vladimir — 6 parties
Alekhine, Alexander — 4 parties
Euwe, Max — 3 parties
Kasparov, Garry — 3 parties
Carlsen, Magnus — 3 parties
Ju, Wenjun — 3 parties
Tal, Mikhail — 2 parties
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

5.Ne2 — 56.6% (7848 parties)

1854 — Singleton P vs Casswell — 1-0 — corr England
1925 — Rubinstein, Akiba vs Rabinovich, Ilya Mar — 0-1 — Moscow RUS
1930 — Rubinstein, Akiba vs Kashdan, Isaac — 1/2-1/2 — Hamburg olm
1930 — Landau, Salo vs Fontein, George — 1/2-1/2 — Amsterdam NED
1930 — Landau Salomon vs Rejfir, Josef — 1-0 — Hamburg GER

5.Bd3 — 30.7% (4251 parties)

1914 — Rubinstein, Akiba vs Alekhine, Alexander — 0-1 — St Petersburg (05)
1914 — Rubinstein, Akiba vs Alekhine, Alexander — 0-1 — St Petersburg RUS
1914 — Janowski, Arkadiusz vs NIEMZOWITSCH — 1/2-1/2 — St Petersburg RUS
1914 — Janowski, Dawid vs Nimzowitsch, Aron — 1/2-1/2 — St Petersburg RUS
1914 — Janowski, Dawid vs Nimzowitsch, Aron — 1/2-1/2 — St Petersburg RUS

5.Nf3 — 6.6% (908 parties)

1930 — Thomas, George Alan vs Duchamp, Marcel — 1-0 — Hamburg GER
1931 — Fox, Maurice vs Capablanca, Jose — 0-1 — New York, NY USA
1931 — Fox, Mark vs Capablanca, Jose — 0-1 — New York, NY USA
1931 — Fox, Maurice vs Capablanca, Jose — 0-1 — New York, NY USA
1932 — Koltanowski, George vs Milner Barry, Philip — 1-0 — Londen

5.Bd2 — 1.8% (248 parties)

1926 — Reti, Richard vs Gilg, Carl — 1-0 — Semmering AUT
1944 — Pomar Salamanca, Arturo vs Ticoulat — 1-0 — Palma de Majorca ESP
1966 — Gasztonyi, Endre vs Toth, Bela — 1-0 — Budapest HUN
1972 — Figueirido, Mario vs Kanko, Ilkka — 0-1 — Skopje ol (Men) fin-C
1978 — Scholz, Guillermo vs Monier, Raul — 1/2-1/2 — Buenos Aires ARG

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● a7→b6, c7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v0), ● b5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	5 (g1, c1, f1, a1, h1)	4 (b8, c8, a8, h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Au centre !
Droits de roque	O-O / O-O-O	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d4-d5, ● e3-e4, ● f2-f3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1926 Semmering – Round 1 – Reti, Richard – 1-0 – Gilg, Carl – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd2 Bb7 6. Nf3 c5 7. dxc5 Bxc5 8. Bd3 O-O 9. O-O d5 10. Qe2 dxc4
1930 Hamburg GER – Round 10 – Duchamp, Marcel – 1/2-1/2 – Rejfir, Josef – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 Nc6 6. Bd2 Bb7 7. Qg3 O-O 8. Bd3 d5 9. cxd5 exd5 10. Nge2 Bd6
1931 Blitz Match – Round 7 – Havasi, Kornel – 1-0 – Van den Bosch, Johannes – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 Nc6 6. Ne2 O-O 7. a3 Be7 8. Ng3 Bb7 9. Qd1 d5 10. cxd5 exd5
1931 Trebitsch mem14 – Round 3 – Mueller, Hans – 1-0 – Metanomski, Leonhard – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. Nf3 O-O 8. Bd3 d6 9. Qc2 Nbd7 10. O-O e5
1931 Trebitsch mem14 – Round 7 – Kunert, Franz – 1-0 – Lokvenc, Josef – G23 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Be2 Bb7 6. Bf3 Nc6 7. Ne2 O-O 8. O-O Rb8 9. e4 e5 10. Nd5 Be7
1936 New York ch-USA – Round 11 – Treysman, G. – 1-0 – Kashdan, Isaac – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Be2 Ne4 6. Qc2 Nxc3 7. bxc3 Be7 8. Nf3 O-O 9. Bd3 h6 10. Be4 c6
1938 Argentina – Round 10 – Grau, Roberto G – 1/2-1/2 – Nogues Acuna, Alejandro – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qc2 Bb7 6. Nf3 O-O 7. Bd3 d5 8. cxd5 exd5 9. O-O c5 10. a3 Bxc3
1939 Leningrad/Moscow – Round 5 – Alatortsev, Vladimir N. – 1/2-1/2 – Kan, Ilya A – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 Nc6 6. Bd2 Bb7 7. Qg3 O-O 8. Bd3 d5 9. cxd5 exd5 10. Nge2 Bd6
1942 Moscow Ch – Round 1 – Zagoriansky, Evgeny – 1-0 – Shcherbakov, Vitaly – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Be2 Bb7 6. Bf3 Qc8 7. Qb3 Nc6 8. Ne2 Be7 9. Bxc6 Bxc6 10. d5 Bb7
1945 URS-sf – Round 3 – Zagoriansky, Evgeny – 1-0 – Bronstein, David I – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Be2 Bb7 6. Bf3 Bxf3 7. Nxf3 Bxc3+ 8. bxc3 Ne4 9. a4 Nc6 10. Ba3 f5
1946 Mar del Plata – Round 1 – Reinhardt, Enrique – 0-1 – Corte, Cesar J – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qb3 c5 6. Nf3 O-O 7. Be2 Bb7 8. O-O Nc6 9. Rd1 cxd4 10. Nxd4 Qe7
1946 POL Ch – Round 21 – Gadalinski, Jan – 1/2-1/2 – Sliwa, Bogdan – G121 1. d4 Nf6 2. c4 e6 3. e3 b6 4. Nc3 Bb4 5. a3 Bxc3+ 6. bxc3 d5 7. a4 c5 8. Ba3 Qc7 9. cxd5 exd5 10. Nf3 O-O
1946 USA Ch New York, NY USA – Round 1 – Kashdan, Isaac – 1/2-1/2 – Santasiere, Anthony – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Be2 Bb7 6. Bf3 Ne4 7. Qc2 Bxc3+ 8. bxc3 f5 9. Ne2 O-O 10. O-O d6
1948 Bad Gastein – Round 3 – Canal, Esteban – 1-0 – Platt, Josef – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 d5 6. Ne2 Bb7 7. a3 Be7 8. Nf4 c6 9. Bd3 Ba6 10. b3 g5
1948 Bad Nauheim – Round 1 – Roedl, Ludwig – 1/2-1/2 – Rautenberg, Wilhelm – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. Nf3 O-O 8. Bd3 Ne4 9. O-O f5 10. Qc2 d6
1949 URS Ch, semi final – Round 13 – Aratovsky, Nikolay – 1-0 – Arulaid, Alexander – G94 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Ba6 7. Bd3 d5 8. cxd5 Bxd3 9. Qxd3 exd5 10. Bb2 c5
1950 Dubrovnik olm – Round 15 – Devos, Paul – 1/2-1/2 – Bergkvist, Nils – G223 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. f3 Bb7 6. Ne2 Nh5 7. Kf2 f5 8. g3 O-O 9. Bg2 Be7 10. Rf1 Nf6
1951 URS Ch sf – Round 13 – Taimanov, Mark E – 1-0 – Estrin, Yakov – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Ba6 7. Bd3 Nc6 8. e4 e5 9. f4 exd4 10. e5 O-O
1953 Candidats Tournament – Round 28 – Gligorić, Svetozar – 0-1 – Keres, Paul – G185 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. f3 Nc6 8. e4 d6 9. Bd3 Na5 10. Ne2 Qd7
1955 URS Ch sf – Round 14 – Tolush, Alexander V – 0-1 – Estrin, Yakov – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 Nc6 6. Bd3 Ba6 7. Bd2 Na5 8. Qe2 d5 9. cxd5 Bxd3 10. Qxd3 Bxc3
1957 FRG Ch Bad Neuenahr – Round 7 – Hodakowsky, Georg – 0-1 – Lehmann, Heinz – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. Ne2 Nc6 8. Ng3 Na5 9. Bd3 Bxg2 10. Rg1 Bb7
1962 URS Team Ch – Round 1 – Mikenas, Vladas – 0-1 – Spassky, B. – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 d5 6. Bd3 Ba6 7. Bd2 c5 8. dxc5 Nbd7 9. Be2 Bxc4 10. cxb6 O-O
1966 Ch (Men) Budapest HUN – Round 8 – Gasztonyi, Endre – 1-0 – Toth, Bela – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd2 Bb7 6. Nf3 Bxc3 7. Bxc3 Ne4 8. Rc1 O-O 9. Bd3 f5 10. O-O d6
1967 Harrachov – Round 1 – Kuzmin, Gennadiy – 1-0 – Neukirch, Detlef – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qf3 d5 6. Bd2 Bb7 7. Bd3 Nbd7 8. cxd5 exd5 9. Nge2 O-O 10. O-O Ne4
Buenos Aires olm 1978 – Round 1 – Korchnoi, Viktor – 1/2-1/2 – Hamann, Svend – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. f3 O-O 6. e4 Nc6 7. Ne2 Ba6 8. a3 Be7 9. Ng3 Ne8 10. b4 Bb7
FIDE World Rapid 2014 – Round 10.35 – Milov, Vadim – 1-0 – Amin, Bassem – G235 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. f3 c5 6. d5 O-O 7. e4 Re8 8. Ne2 exd5 9. cxd5 Bb7 10. Kf2 d6
World Rapid 2016 – Round 7.11 – Riazantsev, Alexander – 0-1 – Akopian, Vladimir – G250 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd2 Bb7 6. Nf3 O-O 7. Bd3 d6 8. Qc2 c5 9. a3 Bxc3 10. Bxc3 cxd4

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