E54f — Nimzo-Indian: Main Line, 7…dxc4 8.Bxc4 cxd4 9.exd4

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 cxd4 9.exd4 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ 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 les cases fortes b5, e5 et g5, un fou actif en c4, la paire de fous et la colonne semi-ouverte e.

Côté adverse. Le fou enfermé en c8.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1) et le pion isolé d4.

Plans. Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte d5.

Atouts. Les Noirs s'appuient sur la case forte d5, un avant-poste en d5, un fou actif en b4, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Le pion isolé d4 et le fou enfermé en c1.

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, ...Bg4, ...Bf5)) ; ...Nbd7 (Développer Nb8) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	● d4	—
Arriérés	—	—
Chaînes	—	● f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v0), ● g5 (2v0)	● d5 (3v2)
Cases faibles	—	—
Centre	● d4 (2v1), ● e5 (2v0)	● d5 (3v2)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● c	● c
Semi-ouvertes	● e	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bc4	● Bc4 Actif (mob. 7)
Bb4		● Bb4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5	● …e6-e5

Partie
1920 Gothenburg-B – Round 12 – Euwe, Max – 1-0 – Berndtsson, Karl – G71 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Nc3 c5 5. e3 cxd4 6. exd4 d5 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Nc6 10. Bg5 Ne7
1931 Argentina – Round 15 – Bolbochan, J. – 1-0 – Ibanez Guillen, Enrique – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O cxd4 9. exd4 Nbd7 10. Qe2 Nb6
1937 Trebitsch mem3738 – Round 2 – Glass, Eduard – 0-1 – Weinstock, Karl – G6 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 c5 5. Bd3 cxd4 6. exd4 dxc4 7. Bxc4 Bb4+ 8. Nc3 O-O 9. O-O Nbd7 10. Bg5 h6
1945 Novi Sad – Round 21 – Popovic, Zarko – 0-1 – Milic, Borislav – G191 1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 cxd4 5. exd4 dxc4 6. Bxc4 Nf6 7. Nf3 Bb4 8. O-O O-O 9. Bg5 h6 10. Bh4 Nbd7
1949 CZE-AUT Prague CZE – Round 2 – Kottnauer, Cenek – 1-0 – Lokvenc, Josef – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Qe2 a6
1949 URS Ch, semi final – Round 1 – Alatortsev, Vladimir N. – 1/2-1/2 – Poliak, Abram – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 c5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Bg5 Be7
1950 Moskou ch-URS – Round 1 – Tolush, Alexander – 1-0 – Sokolsky, Alexey – G25 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Bg5 Be7
1952 Mar del Plata – Round 16 – Luckis, Marcos – 1/2-1/2 – Budowski, Gerardo – G115 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Bd3 O-O 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Bf4 b6
1952 Saltsjobaden Interzonal – Round 18 – Averbakh, Yuri L – 1/2-1/2 – Prins, Laura – G166 1. d4 e6 2. c4 Bb4+ 3. Nc3 c5 4. e3 cxd4 5. exd4 Nf6 6. Bd3 d5 7. Nf3 O-O 8. O-O dxc4 9. Bxc4 Nbd7 10. Bg5 h6
1956 Leningrad ch-URS – Round 1 – Borisenko, Georgy K – 0-1 – Spassky, Boris V. – G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Qe2 a6
1956 Leningrad ch-URS – Round 1 – Borisenko, Georgy K – 1-0 – Tolush, Alexander – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Qe2 a6
1956 URS Ch sf – Round ? – Kondratiev, Pavel E – 1/2-1/2 – Spassky, Boris V. – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Bg5 a6
1957 Sao Paulo Sao Paulo BRA – Round 6 – Najdorf, Miguel – 1-0 – Hollmann, Jose – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 cxd4 9. exd4 Qc7 10. Qe2 Nc6
1957 Sofia zt Sofia BUL – Round 1 – Barcza, Gedeon – 0-1 – Sliwa, Bogdan – G11 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. Be2 c5 7. O-O dxc4 8. Bxc4 cxd4 9. exd4 Nbd7 10. Bg5 Qa5
1957 URS-JUG – Round 6 – Gligoric, Svetozar – 1-0 – Tolush, Alexander V – G27 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Bd3 a6
1957 WchT U26 04th – Round 3.2 – Bertholdt, Dieter – 1/2-1/2 – Spassky, Boris V. – G29 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Qd3 a6
1958 Munich olm prel – Round 9 – Romani, Elio – 1/2-1/2 – Raizman, Maurice – G202 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Bxc3 10. bxc3 Qc7
1959 Riga – Round ? – Witkowski, Stefan – 0-1 – Tolush, Alexander V – G77 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Qd3 a6
1960 Hamburg WGER-USSR – Round 4 – Teschner, Rudolf – 1/2-1/2 – Tolush, Alexander – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Qd3 a6
1963 Budapest ch-HUN – Round 1 – Liptay, Laszlo Dr. – 0-1 – Navarovszky, Laszlo – G152 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 O-O 8. O-O dxc4 9. Bxc4 Nbd7 10. Qd3 a6
1963 Capablanca Memorial – Round 4 – Letelier Martner, Rene – 1-0 – Haro Garcia, Gilberto – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 cxd4 9. exd4 Qc7 10. Qe2 a6
1963 Piatigorsky Cup – Round 12 – Olafsson, Fridrik – 1/2-1/2 – Petrosian, Tigran V – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Bg5 Be7
1964 Pecs – Round 13 – Damjanovic, Mato – 1/2-1/2 – Szilagyi, Peter – G76 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. a3 Bxc3
1965 Hungary – Round 1 – Sapi, Laszlo – 1/2-1/2 – Flesch, Janos – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Qd3 Bxc3
1966 Asztalos Memorial – Round 10 – Lilienthal, Andor – 1/2-1/2 – Flesch, Janos – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Bxc3 10. bxc3 Qc7
1966 Hungary – Round 1 – Haag, Ervin – 0-1 – Flesch, János – G72 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Nbd7 10. Qe2 Bxc3
1967 Asztalos Memorial 10th – Round 15 – Kovacs, Miklos – 0-1 – Haag, Ervin – G79 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Nbd7 10. Bg5 Bxc3
1967 Sochi – Round 1 – Krogius, Nikolai V – 1/2-1/2 – Flesch, János – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Bxc3 10. bxc3 Qc7
1967 Sochi – Round 14 – Simagin, Vladimir – 1-0 – Zhukhovitsky, Samuel – G107 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Nf3 c5 5. e3 d5 6. Bd3 O-O 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Bxc3 10. bxc3 Qc7
1968 DDR Ch 17th – Round 15 – Pietzsch, Wolfgang – 1-0 – Moehring, Guenther – G60 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Nbd7 10. Bg5 b6
1968 URS Team Ch – Round 1 – Kondratiev, Pavel E – 0-1 – Gojhman, Alexander – G56 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Bxc3 10. bxc3 b6
1969 Budapest ch-HUN – Round 1 – Sapi, Laszlo – 1/2-1/2 – Flesch, Jean-benoit – G51 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Nc3 c5 5. e3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Bxc3 10. bxc3 Qc7
1969 Zalaegerszeg – Round 1 – Taimanov, Mark E – 1-0 – Flesch, János – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Qe2 Bxc3
42. Olympiad 2016 – Round 5.9 – Piorun, Kacper – 1/2-1/2 – Vedmediuc, Serghei – G382 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. e3 c5 5. d4 cxd4 6. exd4 Bb4 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Nbd7 10. Bg5 Bxc3
Amber Blindfold, Monte Carlo MON 1998 – Round 4 – Lautier, Joel – 1/2-1/2 – Anand, Viswanathan – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 cxd4 9. exd4 Nbd7 10. Qe2 Bxc3
Eurotel Trophy 2002 – Round 3.2 – Karpov, Anatoly – 1/2-1/2 – Morozevich, Alexander – G66 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 cxd4 5. exd4 d5 6. Nc3 Bb4 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Bxc3 10. bxc3 Qc7
Manila Interzonal 1990 – Round 11 – Tal, Mikhail – 0-1 – Ljubojevic, Ljubomir – G177 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 cxd4 7. exd4 dxc4 8. Bxc4 O-O 9. O-O Nc6 10. Bg5 Be7
PCA/Intel-GP 1995 – Round 1 – Korchnoi, Viktor – 1-0 – Arbakov, Valentin – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 cxd4 9. exd4 Nbd7 10. Bg5 Be7
World Blitz Final 2012 – Round 7 – Kotsur, Pavel – 1-0 – Morozevich, Alexander – G47 1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O h6 10. Qd3 b6
World Cup 1991 – Round 5 – Ivanchuk, Vasyl – 1/2-1/2 – Speelman, Jon S – G37 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Nbd7 10. Qe2 a6

E54f — Main Line

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 cxd4 9.exd4

Eval: [+0.00]

Les coups candidats

9…b6 — 70.3% (5098 parties) →

Ambassadeurs : Salzmann, Stefan (32x), Hildebrand, Gerald (22x), Korobov, Anton (21x), Portisch, Lajos (19x), Junge, Wolfgang (19x), Bordenave, Roberto (19x), Eperjesi, Laszlo Dr. (18x), Tudor, Vasile (18x)

9…a6 — 8.7% (633 parties) →

Ambassadeurs : Emms, John M (8x), Schlosser, Philipp (8x), Iordachescu, Viorel (7x), Dreev, Aleksey (6x), Khenkin, Igor (6x), Lautier, Joel (5x), Dautov, Rustem (5x), Kharitonov, Adil (4x)

9…Nbd7 — 8.5% (613 parties)

Ambassadeurs : Kveinys, Aloyzas (7x), Eperjesi, Laszlo Dr. (6x), Tolush, Alexander V (5x), Kovacevic, Aleksandar (5x), Nguyen Van Huy (5x), Tolush, Alexander (4x), Acs, Peter (4x), Korchnoi, Viktor (4x)

9…Nc6 — 7.0% (504 parties)

Ambassadeurs : Alatortsev, Vladimir N. (4x), Potrata, Janko (4x), Jobava, Baadur (3x), Aleksandrov Ivanchev, Aleksandar (3x), Petrosian, Tigran A. (2x), Olafsson, Fridrik (2x), Heemskerk, Fenny (2x), Luckis, Marcos (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…b6	9…a6	9…Nbd7	9…Nc6
<1800	98	60%	9%	3%	19%
1800-2200	1665	71%	6%	6%	8%
2200-2600	4317	71%	9%	10%	6%
2600+	349	82%	11%	4%	2%

Évolution par décennie (% des parties)

Décennie	N parties	9…b6	9…a6	9…Nbd7	9…Nc6
1860s	1	—	—	—	100%
1920s	2	50%	—	—	50%
1930s	11	64%	9%	27%	—
1940s	15	40%	27%	13%	20%
1950s	47	9%	28%	32%	21%
1960s	57	47%	9%	18%	11%
1970s	163	80%	6%	6%	4%
1980s	314	72%	9%	7%	5%
1990s	916	56%	13%	14%	8%
2000s	1798	58%	16%	11%	9%
2010s	2936	77%	5%	6%	6%
2020s	988	87%	2%	3%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…b6	77%	87%	▲ +9.7%
9…a6	5%	2%	▼ -2.8%
9…Nbd7	6%	3%	▼ -3.5%
9…Nc6	6%	4%	▼ -1.8%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 10 parties
Karpov, Aleksandr — 10 parties
Anand, Viswanathan — 7 parties
Kramnik, Vladimir — 7 parties
Carlsen, Magnus — 6 parties
Kasparov, Garry — 3 parties
Ding, Liren — 3 parties
Ju, Wenjun — 3 parties
Euwe, Max — 2 parties
Alekhine, Alexander — 2 parties
Tal, Mikhail — 2 parties
Hou, Yifan — 2 parties
Gukesh D — 2 parties
Botvinnik, Mikhail — 1 partie

Parties historiques

9…b6 — 70.3% (5098 parties)

1920 — Johner, Paul vs Berndtsson, Karl — 1-0 — Goteborg SWE
1933 — Alekhine, Alexander vs Baratz, Abraham — 1-0 — Paris Paris FRA
1933 — Alekhine, Alexander vs Baratz, Abraham — 1-0 — Paris FRA
1938 — Alatortsev, Vladimir N. vs Vasiliev, Viktor A — 1-0 — Leningrad RUS
1938 — Eliskases, Erich vs Schmidt, Pascal — 1-0 — Noordwijk

9…a6 — 8.7% (633 parties)

1936 — Opocensky, Karel vs Donegan, Alfred — 1-0 — Trebitsch mem19
1946 — Kotov Lundqvist, Alex vs Estrin, Yakov — 1/2-1/2 — Moscow RUS
1949 — Kottnauer, Cenek vs Rossolimo, Nicolas — 1/2-1/2 — Venice ITA
1949 — Foltys, Jan vs Stalda, Giuseppe — 1-0 — Venice ITA
1949 — Furman, Slavomir vs Bannik, Anatolij — 0-1 — Vilnius LTU

9…Nbd7 — 8.5% (613 parties)

1931 — Bolbochan, J. vs Ibanez Guillen, Enrique — 1-0 — Argentina
1935 — ? vs Herzog, Franz — 1/2-1/2 — Konstantinsbad
1937 — Glass, Eduard vs Weinstock, Karl — 0-1 — Vienna AUT
1944 — Denker, Arnold S vs Kashdan, Isaac — 0-1 — New York, NY USA
1949 — Kottnauer, Cenek vs Lokvenc, Josef — 1-0 — CZE-AUT Prague CZE

9…Nc6 — 7.0% (504 parties)

1861 — Schmorl, Alfred vs Lange, Max — 1-0 — Leipzig GER
1920 — Euwe, Max vs Berndtsson, Karl — 1-0 — Goteborg SWE
1942 — Lilienthal, Andor vs Boleslavsky, Isaac — 0-1 — Kuibyshev
1949 — Alatortsev, Vladimir N. vs Poliak, Abram — 1/2-1/2 — Moscow RUS
1949 — Alatortsev, Vladimir N. vs Kan, Ilya A — 1-0 — Moscow RUS

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