E33c — Nimzo-Indian: Classical, 4…Nc6 5.Nf3 d5

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b5, case forte e5, case forte g5, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 4 pièces non développées (C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, menace e5, libère Bf1
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4

♚ 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, pawn c4 en prise.
Problèmes : roi au centre, Bc8 enfermé, 3 pièces non développées (C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)
● ...Bg4 — Clouer Nf3
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E33c — Classical

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d5

Eval: [+0.47]

Les coups candidats

6.e3 — 33.9% (230 parties)

Ambassadeurs : Gurgenidze, Bukhuti (3x), Feigin, Movsa (2x), Luckis, Marcos (2x), Kotov Lundqvist, Alex (2x), Keres, Paul (2x), Gogichaishvili, Giorgi (2x), Naumkin, Igor (2x), Slovineanu, Viacheslav (2x)

6.a3 — 25.1% (170 parties)

Ambassadeurs : Inkiov, Ventzislav (3x), Mikenas, Vladas (2x), Haygarth, Michael J (2x), Forintos, Gyozo V (2x), Antoshin, Vladimir S (2x), Velikov, Petar (2x), Kakageldyev, Amanmurad (2x), Grivas, Efstratios (2x)

6.Bg5 — 23.2% (157 parties)

Ambassadeurs : Gurgenidze, Bukhuti (3x), Petursson, Margeir (2x), Masse, Hugues (2x), Nüchter, Christian (2x), Stojanovski, Sandi (2x), Porte, Henrik (2x), Sanguinetti, Ricardo (1x), Corte, Cesar J (1x)

6.cxd5 — 15.9% (108 parties)

Ambassadeurs : Flohr, Salo (3x), Varga, Peter (3x), Zemerov, Vladimir (3x), Smyslov, Vladimir (2x), Ragozin, Viacheslav (2x), Arnason, Jon L (2x), Van der Wal, Jannes (2x), Stuhlmann, Florian (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.e3	6.a3	6.Bg5	6.cxd5
<1800	23	43%	13%	26%	13%
1800-2200	169	42%	21%	21%	14%
2200-2600	261	25%	33%	23%	18%
2600+	2	—	—	50%	50%

Évolution par décennie (% des parties)

Décennie	N parties	6.e3	6.a3	6.Bg5	6.cxd5
1930s	18	44%	28%	—	22%
1940s	17	41%	18%	6%	29%
1950s	14	36%	21%	21%	21%
1960s	8	25%	62%	—	12%
1970s	16	38%	38%	19%	6%
1980s	28	36%	25%	25%	11%
1990s	141	23%	26%	26%	23%
2000s	212	36%	24%	26%	12%
2010s	201	38%	25%	21%	14%
2020s	23	26%	17%	30%	22%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.e3	38%	26%	▼ -12.2%
6.a3	25%	17%	▼ -7.5%
6.Bg5	21%	30%	▲ +9.0%
6.cxd5	14%	22%	▲ +7.3%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 3 parties
Smyslov, Vladimir — 3 parties

Parties historiques

6.e3 — 33.9% (230 parties)

1935 — Spielmann, Rudolf vs Romanovsky, Pjotr — 1-0 — Moskou
1936 — Friedmann Henryk vs Keller, Hans — 1-0 — Vienna AUT
1938 — Kamyshov, Mikhail vs Ragozin, Viacheslav — 1-0 — Leningrad RUS
1939 — Feigin, Movsa vs Luckis, Marcos — 1-0 — Buenos Aires ARG
1939 — Feigin, Movsa vs Luckis, Marcos — 1-0 — olm Buenos Aires

6.a3 — 25.1% (170 parties)

1931 — Ibanez Guillen, Enrique vs Acero Falcon, Lucas Esteban — 1-0 — Argentina
1937 — Van Doesburgh, Gerrit vs Schelfhout, Willem — 1-0 — Margate ENG
1939 — Makagonov, Vladimir vs Botvinnik, Mikhail — 1/2-1/2 — Russia, Ch URS, Leningrad
1939 — Capablanca, Jose vs Mikenas, Vladas — 1-0 — Buenos Aires ARG
1939 — Petrov, Vladimir (ENG) vs Mikenas, Vladas — 1-0 — Buenos Aires ARG

6.Bg5 — 23.2% (157 parties)

1946 — Sanguinetti, Ricardo vs Corte, Cesar J — 1-0 — Mar del Plata ARG
1952 — Lidacis, A vs Grivainis, Konstantin — 1/2-1/2 — Latvian Exiles 5254
1953 — Gadalinski, Jan vs Ziembinski, Marian — 1-0 — Krakow POL
1956 — McClain, G. vs Fischheimer, Daniel — 0-1 — Oklahoma City, OK USA
1970 — Doroshkievich, Vladimir K vs Tseshkovsky, Vitaly — 0-1 — Kuibyshev ch-RUS

6.cxd5 — 15.9% (108 parties)

1936 — Botvinnik, Mikhail vs Ragozin, Viacheslav — 1-0 — Moscow RUS
1936 — Goldberg, Grigory A vs Ragozin, Viacheslav — 0-1 — Leningrad RUS
1937 — Graf, Sascha vs Opocensky, Karel — 0-1 — Prague CZE
1939 — Combe, Robert F vs Winter, William — 1/2-1/2 — Aberdeen SCO
1940 — Bernstein, Sidney vs Fine, Richard Alvaro Adrien — 0-1 — New York, NY USA

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v1), ● g5 (2v0)	—
Cases faibles	● e4	—
Centre	● e5 (2v1)	● d5 (3v2)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 0)
Bb4		● Bb4 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	4 (c1, f1, a1, h1)	3 (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	fermé
Ruptures	● c4-c5	● …e6-e5

Partie
1932 Leningrad Ch – Round 1 – Goldberg, Grigory A – 1-0 – Miasoedov, Grigory – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. Bd2 O-O 7. e3 Re8 8. O-O-O Bd7 9. h3 Bf8 10. a3 a5
1935 Moskou – Round 17 – Spielmann, Rudolf – 1-0 – Romanovsky, Pjotr – G84 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. a3 Bxc3+ 8. Qxc3 Bd7 9. Bd3 Qe7 10. b4 dxc4
1936 Leningrad Ch – Round 1 – Goldberg, Grigory A – 0-1 – Ragozin, Viacheslav – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 Qxd5 7. Bd2 Bxc3 8. Bxc3 b6 9. g3 Bb7 10. Bg2 Qh5
1937 Prague – Round 4 – Graf, Sascha – 0-1 – Opocensky, Karel – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. Bg5 h6 8. Bxf6 Qxf6 9. e3 O-O 10. Be2 Ne7
1938 Trade Unions – Round 17 – Kamyshov, Mikhail – 1-0 – Ragozin, Viacheslav – G135 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. Bd3 Qe7 8. O-O dxc4 9. Bxc4 e5 10. Nd5 Nxd5
1939 Buenos Aires ol f-A – Round 3 – Feigin, Movsa – 1-0 – Luckis, Marcos – G45 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. a3 Bxc3+ 8. Qxc3 Bd7 9. Bd3 dxc4 10. Bxc4 a5
1939 Buenos Aires ol f-A – Round 3 – Petrov, Vladimir (ENG) – 1-0 – Mikenas, Vladas – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. a3 Bxc3+ 7. Qxc3 a5 8. b3 O-O 9. e3 Re8 10. Bb2 Bd7
1939 Buenos Aires ol f-A – Round 7 – Capablanca, Jose – 1-0 – Mikenas, Vladas – G131 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. a3 Bxc3+ 7. Qxc3 a5 8. b3 O-O 9. Bg5 h6 10. Bxf6 Qxf6
1939 Leningrad ch-URS – Round 17 – Kotov Lundqvist, Alex – 0-1 – Botvinnik, Mikhail – G139 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. a3 Bxc3+ 8. Qxc3 Bd7 9. b3 a5 10. Bd3 a4
1939 olm Buenos Aires – Round ? – Feigin, Movsa – 1-0 – Luckis, Marcos – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. a3 Bxc3+ 8. Qxc3 Bd7 9. Bd3 dxc4 10. Bxc4 a5
1939 SCO-ch52/ – Round 9 – Combe, Robert F – 1/2-1/2 – Winter, William – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 Qxd5 7. e3 e5 8. Nxe5 Bxc3+ 9. bxc3 Nxe5 10. dxe5 Qxe5
1940 New York ch-USA – Round 12 – Bernstein, Sidney – 0-1 – Fine, Richard Alvaro Adrien – G67 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. Bg5 h6 8. Bf4 Ne4 9. e3 g5 10. Be5 f6
1944 Moskou ch-URS – Round 1 – Flohr, Salo – 1/2-1/2 – Smyslov, Vladimir – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. Bg5 Qd6 8. Bxf6 Qxf6 9. e3 Bf5 10. Bd3 Bxd3
1944 URS-ch13 – Round ? – Flohr, Salo – 1/2-1/2 – Smyslov, Vasily – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. Bg5 Qd6 8. Bxf6 Qxf6 9. e3 Bf5 10. Qd3 Bxd3
1945 Moscow Ch – Round 2 – Flohr, Salo – 1/2-1/2 – Fridstein, German – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. Bg5 Qd6 8. Bxf6 Qxf6 9. a3 Bxc3+ 10. Qxc3 Bg4
1945 Moskou ch-URS – Round 1 – Flohr, Salo – 1-0 – Kan, Ilya A – G50 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. a3 Bxc3+ 7. Qxc3 Ne4 8. Qb3 O-O 9. e3 b6 10. Bd3 Bb7
1945 Novi Sad – Round 14 – Vukovic, Sava – 1/2-1/2 – Trifunovic, Petar – G145 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. Bf4 dxc4 7. e3 Bd6 8. Be5 Nb4 9. Qd1 Nd3+ 10. Bxd3 cxd3
1946 Mar del Plata – Round 18 – Maderna, Carlos – 0-1 – Corte, Cesar J – G154 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. a3 Bxc3+ 8. bxc3 Ne4 9. e3 O-O 10. Bd3 Re8
1946 Mar del Plata – Round 3 – Sanguinetti, Ricardo – 1-0 – Corte, Cesar J – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. Bg5 h6 7. Bxf6 Qxf6 8. e3 O-O 9. a3 Bxc3+ 10. Qxc3 Re8
1946 Moscow RUS – Round 1 – Kotov Lundqvist, Alex – 1-0 – Baturinsky, Victor – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. a3 Bd6 8. c5 Be7 9. Bd3 h6 10. h3 e5
1946 Moscow-Prague – Round 9 – O'Reilly, Edward – 1/2-1/2 – Lilienthal, Andor – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. Bd2 dxc4 8. Bxc4 Bd6 9. Bb5 e5 10. Bxc6 exd4
1946 NED Ch prelim I – Round 1 – Marwitz, Jan Hendrik – 1/2-1/2 – Van den Berg, Carel B – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. a3 Bxc3+ 8. bxc3 b6 9. cxd5 exd5 10. Bd3 Na5
1946 San Francisco ARG – Round 7 – Menasse, J. – 0-1 – Corte, Cesar J – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 Bd7 7. a3 Bxc3+ 8. Qxc3 O-O 9. Bd3 a5 10. b3 a4
1948 GER Ch – Round 5 – Rellstab, Ludwig Sr – 1/2-1/2 – Czaya, Richard – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. a3 Bxc3+ 8. bxc3 Re8 9. Be2 e5 10. cxd5 Qxd5
1950 CSR-BUL Prague CZE – Round 2 – Kottnauer, Cenek – 1/2-1/2 – Dimitrov Garcia, Dimitri Ivaylov – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. e3 O-O 7. a3 Bxc3+ 8. Qxc3 Re8 9. b4 Ne7 10. Bb2 b6
1950 DDR Ch – Round 14 – Platz, Hans – 0-1 – Nuesken Fritz – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. a3 Bxc3+ 8. Qxc3 O-O 9. Bf4 Ne4 10. Qc1 Bf5
1950 Szcawno Zdroj – Round ? – Sapi, Laszlo – 0-1 – Keres, Paul – G3 1. d4 Nf6 2. c4 e6 3. Nf3 Nc6 4. Nc3 Bb4 5. Qc2 d5 6. e3 O-O 7. a3 Be7 8. b4 b6 9. Be2 Bb7 10. O-O a5
1950 Szczawno Zdroj – Round 1 – Szapiel, Mateusz – 0-1 – Keres, Paul – G1 1. d4 Nf6 2. c4 e6 3. Nf3 Nc6 4. Nc3 Bb4 5. Qc2 d5 6. e3 O-O 7. a3 Be7 8. b4 b6 9. Be2 Bb7 10. O-O a5
1951 Moskou ch-URS – Round 1 – Lipnitsky, Isaac – 0-1 – Smyslov, Vladimir – G59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 Na5 8. Ne5 Nd7 9. Nxd7 Bxd7 10. cxd5 exd5
1953 POL-ch11 – Round 11 – Gadalinski, Jan – 1-0 – Ziembinski, Marian – G66 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. Bg5 h6 7. Bf4 O-O 8. e3 Re8 9. Bg3 a6 10. cxd5 exd5
1956 Moscow olm prel – Round 1 – Lindblom, Peter – 1/2-1/2 – Kolarov, Atanas S. – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. Bg5 h6 8. Bxf6 Qxf6 9. e3 O-O 10. a3 Bxc3+
1957 Toronto wch-jr – Round 3 – Gerusel, Mathias – 0-1 – Lombardy, William J – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. a3 Bxc3+ 7. Qxc3 Ne4 8. Qc2 e5 9. dxe5 Bf5 10. Qa4 O-O
1957 Warchau ch POL – Round 16 – Gromek, Jozef – 1-0 – Branicki, Ignacy – G83 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. a3 Bd6 7. e3 dxc4 8. Bxc4 O-O 9. Bd2 e5 10. dxe5 Nxe5
1961 USA Ch Open 62th – Round 2 – Svalberg, Charles – 0-1 – Bisguier, Arthur B – G5 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. cxd5 exd5 7. e3 O-O 8. Be2 Re8 9. O-O a6 10. Bd2 Bd6
1965 Hungary – Round 1 – Forintos, Gyozo V – 1/2-1/2 – Szilagyi, Peter – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. a3 Bxc3+ 7. Qxc3 a5 8. e3 O-O 9. Qc2 Re8 10. b3 a4

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