E18e — Queen’s Indian: 7.Nc3 d5

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 d5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur les cases fortes f4, b5, e5 et g5 et la paire de fous.

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

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

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte e4, un fou actif en e7 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2 et une pièce en prise (le pion en c4).

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

Plans. ...Nbd7 (Développer Nb8) ; ...Bg4 (Clouer Nf3) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● e6→d5, a7→b6, c7→b6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● b5 (2v0), ● e5 (2v0), ● g5 (2v0)	● e4 (2v1)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (4v2), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Bb7		● Bb7 Ok (mob. 3)
Be7		● Be7 Actif (mob. 4)
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	● c4-c5	● …e6-e5

Partie
1925 Montevideo – Round 9 – Grau, Roberto G – 1-0 – Villegas, Benito – G23 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 O-O 7. O-O d5 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Qc2 Nd7
1926 Merano Meran ITA – Round 3 – Colle, Edgar – 1/2-1/2 – Gruenfeld, Ernst – G6 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Qc2 Nc6
1934 Leningrad – Round 1 – Rabinovich, Ilya Mar – 1/2-1/2 – Yudovich, Mikhail M – G49 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Qc2 Nxc3 10. bxc3 Qc8
1934 Ujpest – Round 1 – Sterk, Karoly – 1/2-1/2 – Frydman, Paulino – G52 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Nxd5 exd5 10. Bf4 Bd6
1937 Kemeri – Round 1 – Keres, Paul – 1/2-1/2 – Feygin, Michael – G25 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. g3 O-O 6. Bg2 b6 7. O-O Bb7 8. Qa4 Nbd7 9. Ne5 Nb8 10. Rd1 c6
1948 Saltsjobaden tt – Round 1 – Rojahn, Ernst – 0-1 – Niemela, Ilmari Aarne – G2 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. d4 O-O 6. O-O b6 7. Nc3 Bb7 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Qd3 f5
1949 BRA Ch – Round ? – De Freitas, Marcio Elisio – 1-0 – Cordioli, Lourenco Joao – G9 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 O-O 6. O-O b6 7. Nc3 Bb7 8. Qb3 Qc8 9. Bg5 Rd8 10. cxd5 exd5
1949 BUL Ch – Round 15 – Dimitrov Krastev, Krastjo – 1-0 – Zvetkov, Aleksandar – G76 1. Nf3 Nf6 2. d4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. c4 O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Qc2 Nxc3 10. bxc3 Qc8
1949 JUG Ch – Round 1 – Milic, Borislav – 1/2-1/2 – Nedeljkovic, Srecko M – G3 1. d4 e6 2. Nf3 Nf6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Qc2 c5 10. Nxd5 Qxd5
1951 GER Ch U20 – Round 13 – Budrich, Edmund – 1-0 – Darga, Klaus – G39 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. Qc2 dxc4 9. e4 Nc6 10. Rd1 a6
1951 Zonal Marianske Lazne (Czech R – Round 1 – Stoltz, Gabriel – 1/2-1/2 – Barcza, Gedeon – G5 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. Nd2 Nc6 9. e3 Na5 10. b3 dxc4
1953 Bucharest – Round 8 – Sajtar, Jaroslav – 1/2-1/2 – Smyslov, Vladimir – G75 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Nxd5 exd5 10. Bf4 Nd7
1955 DDR Ch 06th – Round 14 – Eising, Johannes – 1/2-1/2 – Fuchs, Reinhart – G58 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 b6 7. Nc3 Bb7 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. b3 c5
1960 Buenos Aires ch-ARG – Round 5 – Reinhardt, Anton – 1/2-1/2 – Aguayo Cruz, Ramon Uriel – G30 1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. d4 Be7 5. Nf3 O-O 6. Bg2 b6 7. O-O Bb7 8. Ng5 Nbd7 9. Qc2 h6 10. Nh3 Qc8
1962 Varna – Round 7 – Korning, Peter – 1/2-1/2 – O'Hare, E. – G45 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. c4 O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Qc2 Nd7 10. e4 Nb4
1963 Budapest ch-HUN – Round 1 – Sapi, Laszlo – 0-1 – Kovacs H., Zoltan – G110 1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. c4 d5 7. Nc3 O-O 8. Bf4 dxc4 9. Qa4 Nd5 10. Ne5 Nxc3
1964 WchT U26 11. fin-A – Round 4.3 – Stefanov, Josif Jovchev – 0-1 – Mnatsakanian, Eduard A – G72 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. c4 Be7 6. d4 O-O 7. Nc3 d5 8. b3 Nbd7 9. Bb2 Rc8 10. cxd5 exd5
1965 SWE Ch – Round 14 – Abramsson, Lars – 1/2-1/2 – Ek, Hans – G44 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. d4 b6 7. Nc3 Bb7 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Qc2 Nd7 1/2-1/2
1969 DDR Ch women – Round 1 – Frommelt, Hans-Juergen – 0-1 – Nowarra, Waltraud – G2 1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. g3 Bb7 5. Bg2 d5 6. O-O Be7 7. Nc3 O-O 8. Re1 Ne4 9. a3 Nxc3 10. bxc3 dxc4
1971 Moscow – Round 1 – Bukhtin, Vladimir S – 0-1 – Dvoretzky, Mark – G55 1. d4 e6 2. Nf3 Nf6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. Qa4 Ne4 9. Bf4 Nxc3 10. bxc3 Nd7
Brussels blitz 1987 – Round 1 – Korchnoi, Viktor – 1-0 – Karpov, Anatoly – G100 1. Nf3 Nf6 2. c4 e6 3. Nc3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d4 d5 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Qc2 Nd7

E18e —

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 d5

Eval: [+0.30]

Les coups candidats

8.Ne5 — 55.4% (2823 parties) →

Ambassadeurs : Guimard, Carlos E (6x), Huebner, Robert (6x), Saemisch, Friedrich (5x), Donner, Jan-Hein (5x), Van Scheltinga, Theo (5x), Gorodetzky, David (5x), Nimzowitsch, Aron (4x), Golombek, Harry (4x)

8.cxd5 — 32.1% (1635 parties) →

Ambassadeurs : Schneider, Lars-Ake (7x), Yudasin, Leonid (7x), Maric, Alisa (6x), Tukmakov, Vladimir B (4x), Kochyev, Alexander (4x), Tichy, Vladimir (4x), Nemeth, Miklos (4x), Eggleston, David J (4x)

8.b3 — 6.3% (322 parties)

Ambassadeurs : Rodriguez Velasco, German Enrique (3x), Samuelsson, Sven-Gunnar (2x), Sarto Ramos, Angel (2x), Jirka, Jiri (2x), Reilly, Brian (1x), Duchamp, Marcel (1x), Rubtsova, Olga (1x), Yudovich, Mikhail M (1x)

8.Qc2 — 1.8% (93 parties)

Ambassadeurs : Euwe, Max (1x), Landau, Salo (1x), Dienavorian, Manuel (1x), Viana, Josani Carneiro (1x), Pohla, Harry (1x), Iym, Tonu (1x), Litmanowicz, Wladyslaw (1x), Boleslawski Zbigniew (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Ne5	8.cxd5	8.b3	8.Qc2
<1800	217	48%	27%	13%	4%
1800-2200	2321	54%	31%	8%	2%
2200-2600	1555	59%	36%	3%	1%
2600+	12	50%	50%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8.Ne5	8.cxd5	8.b3	8.Qc2
1870s	1	100%	—	—	—
1920s	17	82%	12%	6%	—
1930s	30	63%	23%	3%	3%
1940s	25	72%	24%	—	—
1950s	51	76%	18%	—	4%
1960s	68	59%	28%	4%	3%
1970s	188	68%	28%	2%	1%
1980s	311	55%	36%	4%	1%
1990s	762	57%	34%	5%	1%
2000s	1355	53%	32%	8%	3%
2010s	1905	55%	31%	7%	2%
2020s	379	51%	37%	5%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Ne5	55%	51%	▼ -4.4%
8.cxd5	31%	37%	▲ +6.5%
8.b3	7%	5%	▼ -2.6%
8.Qc2	2%	2%	▲ +0.6%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 4 parties
Botvinnik, Mikhail — 4 parties
Karpov, Anatoly — 4 parties
Tal, Mikhail — 4 parties
Euwe, Max — 3 parties
Karpov, Aleksandr — 3 parties

Parties historiques

8.Ne5 — 55.4% (2823 parties)

1871 — Heinicke, Herbert vs Seitz, Alexander — 1-0 — GER
1923 — Smisch, F vs Nimzowitsch, Aron — 0-1 — Copenhagen DEN
1923 — Saemisch, Friedrich vs Nimzowitsch, Aron — 0-1 — Copenhagen DEN
1923 — Nimzowitsch, Aron vs Saemisch, Friedrich — 1-0 — Copenhagen DEN
1923 — von Brochowski, Christoph vs Helling, Bernd — 1-0 — Frankfurt GER

8.cxd5 — 32.1% (1635 parties)

1925 — Grau, Roberto G vs Villegas, Benito — 1-0 — Montevideo URU
1926 — Colle, Edgar vs Gruenfeld, Ernst — 1/2-1/2 — Merano Meran ITA
1932 — Sultan Khan, Mir vs Michell, Reginald — 0-1 — Hastings ENG
1932 — Chekhover, Vitaly vs Botvinnik, Mikhail — 0-1 — Leningrad RUS
1932 — Soultanbeieff, Victor vs Barzin, Marcel — 1-0 — Brussels BEL

8.b3 — 6.3% (322 parties)

1926 — Reilly, Brian vs Duchamp, Marcel — 1-0 — Nice FRA
1936 — Rubtsova, Olga vs Yudovich, Mikhail M — 0-1 — Trade Unions
1964 — Stefanov, Josif Jovchev vs Mnatsakanian, Eduard A — 0-1 — Krakow POL
1969 — Hill Alan vs Ludgate, Alan — 0-1 — Vancouver
1969 — Sarosy, Zoltan L vs Oliyarnyk, W. — 1/2-1/2 — Toronto CAN

8.Qc2 — 1.8% (93 parties)

1931 — Euwe, Max vs Landau, Salo — 1-0 — Amsterdam m
1951 — Budrich, Edmund vs Darga, Klaus — 1-0 — Leipzig GER
1952 — Litmanowicz, Wladyslaw vs Boleslawski Zbigniew — 1-0 — Katowice POL
1966 — Pohla, Harry vs Iym, Tonu — 1-0 — Ch Estonia URS
1968 — Dienavorian, Manuel vs Viana, Josani Carneiro — 1-0 — Uruguay

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