E34d — Nimzo-Indian: Classical, Noa, 5.e3 O-O

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.e3 O-O * ○ 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 la case forte b5 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier g1, les fous c1 et f1 et les tours a1 et h1).

Plans. Nf3 (Développer Ng1) ; Bd2 (Développer Bc1) ; Bd3 (Développer Bf1).

♚ 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 un avant-poste en e4, un fou actif en b4 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bf5)) ; ...Nbd7 (Développer Nb8) ; ...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, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	—
Cases faibles	● e4	—
Centre	● d4 (1v0), ● e5 (1v0)	● d5 (3v2)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	5 (● g1, ● c1, ● f1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● e3-e4	● …e6-e5

Partie
1926 Hannover – Round 1 – Rubinstein, Akiba – 1-0 – Antze, Oskar – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bxc3+ 7. Qxc3 b6 8. Nf3 dxc4 9. Bxc4 Ba6 10. Bxa6 Nxa6
1927 London – Round 6 – Nimzowitsch, Aron – 0-1 – Marshall Viele, Fabrizio Aaron – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 b6 8. cxd5 exd5 9. Nf3 c5 10. dxc5 bxc5
1928 Hastings Premier /29 9th – Round 3 – Michell, Reginald – 1-0 – Norman, George – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Bd3 Nbd7 7. Nf3 c5 8. O-O a6 9. b3 b6 10. Bb2 Bb7
1928 Hastings Premier /29 9th – Round 4 – Norman, George – 1-0 – Yates, Frederic D – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e3 d5 6. Bd3 c5 7. dxc5 Nbd7 8. cxd5 Nxc5 9. Nf3 Qxd5 10. Be2 Bd7
1928 Kautsky mem5 – Round ? – Thelen, Bedrich – 0-1 – Richter, Emil – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 b6 7. a3 Be7 8. cxd5 exd5 9. Bd3 Bb7 10. O-O c5
1929 Budapest – Round 1 – Rubinstein, Akiba – 1/2-1/2 – Przepiorka, Dawid – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Bd2 b6 7. Nf3 Bb7 8. Rc1 c5 9. dxc5 Bxc5 10. cxd5 Nxd5
1929 Karlsbad – Round 1 – Becker, Albert – 1-0 – Yates, Frederic D – G56 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 c5 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 cxd4 10. cxd4 b5
1929 Rosario – Round ? – Maderna, Carlos – 0-1 – Nogues Acuna, Alejandro – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 b6 8. cxd5 exd5 9. Nf3 c5 10. dxc5 bxc5
1930 Nice Nice FRA – Round 10 – Reilly, Brian – 1-0 – Colle, Edgar – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 c5 7. a3 Bxc3+ 8. bxc3 Qa5 9. Bd2 Ne4 10. Bd3 f5
1932 BCF Ch 25th – Round 4 – Alexander, Frederick Forrest L – 1/2-1/2 – Michell, Reginald – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Bd2 Nbd7 7. Nf3 c5 8. Bd3 cxd4 9. exd4 dxc4 10. Bxc4 a6
1933 Trebitsch Memorial 16th – Round 3 – Hoenlinger, Baldur – 1/2-1/2 – Becker, Albert – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 c5 7. dxc5 dxc4 8. Bxc4 Bxc5 9. O-O a6 10. a3 Nbd7
1933 Western Chess Association – Round 4 – Factor, Samuel D – 0-1 – Fine, Reuben – G3 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 c5 7. dxc5 Nc6 8. cxd5 exd5 9. Bd3 d4 10. exd4 Bg4
1934 Leningrad ch-URS – Round 1 – Riumin, Nikolai – 0-1 – Ragozin, Viacheslav – G62 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 Nc6 7. a3 Bxc3+ 8. Qxc3 Bd7 9. b4 a5 10. b5 Na7
1936 New York ch-USA – Round 10 – Kashdan, Isaac – 1-0 – Steiner, Heinrich Jun. – G28 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qc2 d5 6. a3 Be7 7. Nf3 Nbd7 8. cxd5 exd5 9. Bd3 c6 10. O-O Re8
1936 Olympiad (unofficial) – Round 20 – Havasi, Kornel – 1/2-1/2 – Kiprov Alexander Alexandro – G137 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bxc3+ 7. Qxc3 b6 8. Nf3 Nbd7 9. b4 c5 10. Bb2 Bb7
1937 Prague – Round 1 – Prokop, Frantisek – 0-1 – Gilg, Karl – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Bd3 c5 7. Nf3 dxc4 8. Bxc4 cxd4 9. Nxd4 e5 10. Ne2 Ng4
1937 Stockholm SWE – Round 1 – Van Scheltinga, Theo – 1-0 – Golombek, Harry – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Qc2 O-O 6. a3 Be7 7. Nf3 Nbd7 8. Bd3 c5 9. b3 b6 10. Bb2 Bb7
1938 Trade Unions – Round 9 – Zagoriansky, Evgeny – 0-1 – Ragozin, Viacheslav – G69 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. e3 Nf6 5. Qc2 O-O 6. a3 Be7 7. Nf3 Nbd7 8. Bd3 c5 9. cxd5 exd5 10. O-O a6
1945 Moscow Ch – Round 11 – Alatortsev, Vladimir N. – 0-1 – Ragozin, Viacheslav – G58 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 Nbd7 7. a3 Be7 8. Bd3 c5 9. O-O cxd4 10. exd4 dxc4
1945 Moskou ch-URS – Round 1 – Alatortsev, Vladimir N. – 0-1 – Romanovsky, Pjotr – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bxc3+ 7. Qxc3 a5 8. Nf3 Nc6 9. b3 Bd7 10. Bb2 a4
1945 Moskou ch-URS – Round 1 – Rudakovsky, Iosif – 1/2-1/2 – Romanovsky, Pjotr – G5 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Be7 7. Nf3 Nbd7 8. c5 c6 9. Bd3 Qc7 10. e4 Nxe4
1945 URS-sf – Round 4 – Alatortsev, Vladimir N. – 0-1 – Kan, Ilya A – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 c5 7. a3 Bxc3+ 8. bxc3 b6 9. cxd5 Qxd5 10. c4 Qd6
1946 New York – Round 1 – Partos, Charles – 0-1 – Abad Gonzalez, Jose Miguel – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 Nbd7 7. a3 Be7 8. Bd3 dxc4 9. Bxc4 c5 10. O-O cxd4
1948 Moskou ch-URS – Round 9 – Alatortsev, Vladimir N. – 1-0 – Averbakh, Yuri L – G80 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Be7 7. Nf3 c5 8. dxc5 Bxc5 9. Be2 Nc6 10. O-O dxc4
1949 GER Ch – Round ? – Steger, Alexander – 0-1 – Bogoljubow, Efim – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Bd3 c5 7. Nf3 Nc6 8. dxc5 Bxc5 9. a3 Bd6 10. O-O Ne5
1950 FRG Ch Bad Pyrmont GER – Round 10 – Troeger, Paul – 1-0 – Eisinger, Max Jr – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qc2 d5 6. Bd2 c5 7. a3 Bxc3 8. bxc3 Nc6 9. Nf3 Ne4 10. Be2 Bd7
1950 Moskou ch-URS – Round 1 – Alatortsev, Vladimir N. – 1-0 – Lipnitsky, Isaac – G45 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qc2 d5 6. a3 Be7 7. Nf3 c6 8. Bd3 Qc7 9. e4 dxe4 10. Nxe4 Nxe4
1951 Moskou ch-URS – Round 1 – Kotov Lundqvist, Alex – 1-0 – Novotelnov, Nikolai – G61 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 c6 7. Bd3 Nbd7 8. O-O dxc4 9. Bxc4 Bd6 10. Rd1 Qe7
1953 Hollywood Invitational – Round ? – Matzner, Stephen – 0-1 – Kashdan, Isaac – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 c5 7. a3 Bxc3+ 8. bxc3 Qc7 9. cxd5 exd5 10. Be2 Ne4
1954 URS Team Ch – Round 10 – Goldberg, Grigory A – 1/2-1/2 – Goldin, Vladimir M. – G176 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Qc2 O-O 5. e3 d5 6. a3 Be7 7. Nf3 b6 8. cxd5 exd5 9. Be2 Re8 10. O-O Bf8
1956 Moscow olm fin-A – Round 9 – Aloni, Izak – 1/2-1/2 – Matanovic, Aleksandar – G148 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 c5 8. Nf3 Nc6 9. Bd3 b6 10. O-O Ba6
1958 Munich olm prel – Round 4 – Aloni, Itzchak – 1/2-1/2 – Palmason, Gudmundur – G88 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bxc3+ 7. Qxc3 b6 8. b3 Ba6 9. Nf3 c5 10. Bd3 Nc6
1964 Open – Round 2 – Bermudez Adams, William – 0-1 – Spiller, Arthur R – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Re8 9. O-O Bb7 10. Ne5 a6
1964 Tel Aviv olm prel – Round 4 – Zegada, J. – 0-1 – Udovcic, Mijo – G133 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bxc3+ 7. bxc3 b6 8. Nf3 Ba6 9. Nd2 Nc6 10. e4 Na5
1965 ISR Ch – Round 7 – Aloni, Itzchak – 1-0 – Richter, Yosef – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Bd6 7. c5 Be7 8. Bd3 Nbd7 9. f4 Re8 10. Nf3 Nf8
1965 Tbilisi – Round 1 – Alatortsev, Vladimir N. – 1/2-1/2 – Buslaev, Alexander – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qc2 d5 6. a3 Be7 7. Nf3 b6 8. b4 Bb7 9. c5 a5 10. Rb1 axb4
1967 FRA Ch Dieppe FRA – Round 3 – Thiellement, Andre – 0-1 – Boutteville, Cesar – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. Nf3 c5 7. a3 Bxc3+ 8. bxc3 Nbd7 9. a4 Re8 10. Bb2 Qa5
1967 ISR Ch – Round 4 – Aloni, Itzchak – 0-1 – Bernstein, Yaacov – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qc2 d5 6. a3 Be7 7. Nf3 Nbd7 8. b3 b6 9. cxd5 exd5 10. Bd3 Bb7
1968 Lugano SUI – Round 5 – Hook, William – 1-0 – Jansson, Borje – G76 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Qc2 d5 6. Nf3 b6 7. cxd5 exd5 8. Be2 Bb7 9. O-O a6 10. Rd1 Nbd7
1968 Netanya-A – Round 13 – Yanofsky, Daniel Abraham – 1/2-1/2 – Geller, Uzi – G77 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Be7 7. Nf3 b6 8. cxd5 exd5 9. Be2 Be6 10. O-O Nbd7
World Rapid 2021 – Round 11.22 – Gareyev, Timur – 0-1 – Sarana, Alexey – G635 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 O-O 6. a3 Be7 7. Nf3 Nbd7 8. Bd2 b6 9. cxd5 exd5 10. Bd3 c5

E34d — Classical Noa

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.e3 O-O

Eval: [-0.07]

Les coups candidats

6.Nf3 — 48.9% (396 parties)

Ambassadeurs : Glodova, Erika (3x), Colle, Edgar (2x), Becker, Albert (2x), Ragozin, Viacheslav (2x), Alatortsev, Vladimir N. (2x), Novotelnov, Nikolai (2x), Toth, Daniel (2x), Powell, Annie (2x)

6.a3 — 22.8% (185 parties)

Ambassadeurs : Gareyev, Timur (6x), Alatortsev, Vladimir N. (4x), Aloni, Itzchak (4x), Romanovsky, Pjotr (3x), Rudakovsky, Iosif (2x), Zagoriansky, Evgeny (2x), Ragozin, Viacheslav (2x), Kashdan, Isaac (2x)

6.Bd3 — 17.3% (140 parties)

Ambassadeurs : Chudinovskikh, Alexander M (3x), Norman, George (2x), Steger, Josef (2x), Maderna, Carlos (1x), Bolbochan, J. (1x), Sterk, Karoly (1x), Colle, Edgar (1x), Michell, Reginald (1x)

6.Bd2 — 7.3% (59 parties)

Ambassadeurs : Alexander, Frederick Forrest L (1x), Michell, Reginald (1x), Rubinstein, Akiba (1x), Przepiorka, Dawid (1x), Ruben, Carl (1x), Dake, Arthur William (1x), Troeger, Paul (1x), Eisinger, Max Jr (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Nf3	6.a3	6.Bd3	6.Bd2
<1800	45	44%	22%	20%	11%
1800-2200	382	51%	22%	15%	9%
2200-2600	121	53%	24%	12%	2%
2600+	1	—	100%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6.Nf3	6.a3	6.Bd3	6.Bd2
1920s	13	54%	23%	15%	8%
1930s	24	50%	25%	17%	8%
1940s	17	35%	29%	35%	—
1950s	15	40%	40%	13%	7%
1960s	18	39%	50%	11%	—
1970s	12	50%	17%	17%	17%
1980s	8	62%	25%	12%	—
1990s	99	38%	24%	26%	7%
2000s	236	53%	19%	17%	8%
2010s	296	50%	23%	17%	5%
2020s	72	49%	22%	8%	17%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Nf3	50%	49%	▼ -1.4%
6.a3	23%	22%	-0.4%
6.Bd3	17%	8%	▼ -8.2%
6.Bd2	5%	17%	▲ +11.3%

Parties historiques

6.Nf3 — 48.9% (396 parties)

1928 — Maderna, Carlos vs Cristia, Jose Maria — 1-0 — Buenos Aires ARG
1928 — Thelen, Bedrich vs Richter, Emil — 0-1 — Prague CZE
1929 — Batik, Jiri vs Siegel, Adam — 1-0 — corr Bundes-ch
1929 — Winter, William vs Colle, Edgar — 1/2-1/2 — unknown
1929 — Becker, Albert vs Yates, Frederic D — 1-0 — Carlsbad CZE

6.a3 — 22.8% (185 parties)

1926 — Rubinstein, Akiba vs Antze, Oskar — 1-0 — Hannover GER
1927 — Nimzowitsch, Aron vs Marshall Viele, Fabrizio Aaron — 0-1 — London ENG
1929 — Maderna, Carlos vs Nogues Acuna, Alejandro — 0-1 — Rosario ARG
1936 — Kashdan, Isaac vs Steiner, Heinrich Jun. — 1-0 — New York, NY USA
1936 — Joseph Tomy vs Gilg, Karl — 0-1 — Liberec

6.Bd3 — 17.3% (140 parties)

1928 — Michell, Reginald vs Norman, George — 1-0 — Hastings Town Hall
1928 — Norman, George vs Yates, Frederic D — 1-0 — Hastings Town Hall
1931 — Sterk, Karoly vs Colle, Edgar — 0-1 — Amsterdam NED
1935 — Maderna, Carlos vs Bolbochan, J. — 1/2-1/2 — Buenos Aires ARG
1937 — Prokop, Frantisek vs Gilg, Karl — 0-1 — Prague CZE

6.Bd2 — 7.3% (59 parties)

1929 — Rubinstein, Akiba vs Przepiorka, Dawid — 1/2-1/2 — Budapest HUN
1931 — Ruben, Carl vs Dake, Arthur William — 0-1 — Prague CZE
1932 — Alexander, Frederick Forrest L vs Michell, Reginald — 1/2-1/2 — Whiteleys, London
1950 — Troeger, Paul vs Eisinger, Max Jr — 1-0 — FRG-ch Bad Pyrmont GER
1970 — Janushkowsky, Alex vs Hamilton, Robert — 1/2-1/2 — Sacramento, CA

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