E18z — Queen’s Indian: Old Main Line, 8.Qc2 Nxc3 9.bxc3

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.bxc3 * ● 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 f4….

Atouts. Les Blancs s'appuient sur les cases fortes f4, e5 et g5, la paire de fous et la colonne semi-ouverte b.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1) et le pion isolé a2.

Plans. Be3 (Développer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu au centre (rupture c7-c6).

Atouts. Les Noirs s'appuient sur des fous actifs en b7 et e7 et la paire de fous.

Côté adverse. Le pion isolé a2 et les fous enfermés en c1 et g2.

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

Plans. ...Nc6 (Développer Nb8) ; ...c5 (Rupture) ; ...d6 (Rupture) ; ...d5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	● c3, ● c4	—
Pions isolés	● a2	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3, c3→d4	● a7→b6, c7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	—

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 7)
Bg2	● Bg2 Enfermé (mob. 2)
Bb7		● Bb7 Actif (mob. 6)
Be7		● Be7 Actif (mob. 7)
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	semi-ouvert
Ruptures	● c4-c5, ● d4-d5, ● e2-e3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5, ● …f7-f6, ● …f7-f5

Partie
1925 DSB-24.Kongress – Round 1 – Reti, Richard – 0-1 – Saemisch, Friedrich – G4 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. Nc3 O-O 7. d4 Ne4 8. Qc2 Nxc3 9. bxc3 Qc8 10. e4 d6
1927 London olm – Round 6 – Jacobson, Ernst – 0-1 – Carls, Carl – G27 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Nd2 Na5
1931 Bled – Round 10 – Vidmar Milan – 1/2-1/2 – Colle, Edgar – G135 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Qc8
1931 Prague ol Prague CZE – Round 9 – Vidmar, Marjeta – 1-0 – Hanssen, Lasse Preben – G29 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 c6
1935 Moscow – Round 18 – Pirc, Vasja – 1/2-1/2 – Kan, Ilya A – G85 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 O-O 7. O-O Ne4 8. Qc2 Nxc3 9. bxc3 Qc8 10. e4 Nc6
1936 Budapest – Round 7 – May, Dezso – 1/2-1/2 – Najdorf, Miguel – G26 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. Nc3 Bb7 5. g3 Be7 6. Bg2 O-O 7. O-O Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. e4 Na5
1936 Trade Unions – Round 1 – Chekhover, Vitaly – 0-1 – Mazel, Isaak Y – G11 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Qc8 10. e4 Nc6
1939 Leningrad ch-URS – Round 12 – Kan, Ilya A – 0-1 – Lisitsin, Georgy – G98 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. e4 Na5
1939 Leningrad/Moscow – Round 8 – Kan, Ilya A – 0-1 – Lilienthal, Andor – G62 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Qc8
1944 Mar del Plata – Round 14 – Guimard, Carlos E – 1-0 – Flores Alvarez, Rodrigo – G109 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 O-O 7. O-O Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Na6
1946 Barcelona – Round 3 – Guimard, Carlos E – 1-0 – O'Kelly, Albéric de Galway – G22 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Ne5 Na5
1946 Groningen – Round 19 – Guimard, Carlos E – 1/2-1/2 – Denker, Arnold S – G82 1. d4 Nf6 2. Nf3 b6 3. c4 Bb7 4. g3 e6 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Na6
1946 Mar del Plata – Round 4 – Guimard, Carlos E – 1-0 – Maccioni, Alejandro – G49 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. g3 Be7 6. Bg2 O-O 7. O-O Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Qc8
1946 Nt Regensburg GER – Round 2 – Wotkowski, Sigmund – 0-1 – Unzicker, Wolfgang – G5 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. c4 Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. e4 Na5
1948 It (Men) Mar Del Plata ARG – Round 17 – Abadia Castillo, Mateo – 0-1 – Bolbochan, J. – G10 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Qc8
1948 Mar del Plata – Round 11 – Guimard, Carlos E – 1/2-1/2 – De Freitas, Manuela Schmitz – G91 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Ne5 Na5
1948 Moskou ch-URS – Round 1 – Furman, Slavomir – 1-0 – Taimanov, Mark E – G13 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Nd2 Na5
1948 URS-ch16 – Round 10 – Abramovich Furman, Semyon – 1-0 – Taimanov, Mark E – G5 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Nd2 Na5
1949 Mar del Plata – Round 7 – Guimard, Carlos E – 1-0 – Michel, Pascal – G68 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 c5
1950 Schiavno Zdroj – Round 1 – Averbakh, Yuri L – 1-0 – Pogats, Jozsef Jr. – G131 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. c4 Be7 6. Nc3 O-O 7. d4 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Nd2 Na5
1951 Wertheim Memorial – Round 7 – Guimard, Carlos E – 1-0 – O'Kelly, Albéric de Galway – G40 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Na6
1951 YUG Ch 7th – Round 13 – Kindij Igor – 1/2-1/2 – Matanovic, Aleksandar – G106 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Nd2 Na5
1952 Rio de Janeiro – Round 11 – Bolbochan, Julio – 1/2-1/2 – Mangini, Jose Henrique de Mello – G64 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 c5
1953 Candidats Tournament – Round 22 – Najdorf, Miguel – 0-1 – Averbakh, Yuri L – G141 1. c4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Ne5 Na5
1953 Mar del Plata – Round 5 – Najdorf, Miguel – 1-0 – Burgalat, Francisco J – G63 1. c4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Qc8 10. d5 Na6
1954 CSR Ch – Round 1.8 – Olexa, Vilem – 0-1 – Weiner, Milan – G8 1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. c4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Qc8
1954 Mar del Plata – Round 2 – Guimard, Carlos E – 1/2-1/2 – Eliskases, Erich – G15 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 d5 10. cxd5 exd5
1955 Moscow m – Round 9 – Kan, Ilya A – 1/2-1/2 – Khachaturov, Andrey Andreevich – G9 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Ne5 Na5
1956 Montevideo – Round ? – Alvarez del Monte, Jose – 1/2-1/2 – Isain, Pedros Santos – G55 1. d4 Nf6 2. c4 b6 3. Nf3 e6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Qc8
1957 EU Team Ch – Round 3 – Jaeger, Willy – 1-0 – Blatny, Frantisek – G21 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Qc8
1959 Asztalos Memorial – Round 9 – Kluger, Gyula – 1/2-1/2 – Ujtelky, Maximilian – G43 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. c4 Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Na6
1963 Sochi – Round 10 – Kholmov, Ratmir D – 1/2-1/2 – Polugaevsky, Lev – G59 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Na6
1965 Kiel Open – Round 7 – Besser, Hans – 1-0 – Zeitler, Hans-Juergen – G37 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 e6 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 exd5
41. Olympiad Open 2014 – Round 2.12 – Munoz Sanchez, Miguel – 0-1 – L'Ami, Erwin – G94 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. Ne5 Na5

E18z — Old Main Line

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.bxc3

Eval: [-0.23]

Les coups candidats

9…f5 — 60.2% (374 parties)

Ambassadeurs : Guimard, Carlos E (5x), Huba, Martin (3x), Van Scheltinga, Theo (2x), Kan, Ilya A (2x), Besser, Hans (2x), De Luca Ojeda, Giuliano (2x), Cipriani, Fernand (2x), Bednar, Milan (2x)

9…Nc6 — 18.7% (116 parties)

Ambassadeurs : Taimanov, Mark (2x), Guimard, Carlos E (2x), Kan, Ilya A (2x), Najdorf, Miguel (2x), Averbakh, Yuri L (2x), Rayner, Francis (2x), Matanovic, Aleksandar (2x), Jacobson, Ernst (1x)

9…d6 — 7.4% (46 parties)

Ambassadeurs : Nogues Acuna, Alejandro (1x), Garcia Vera, Oscar (1x), Ravikumar, Vaidyanathan (1x), Wells, Ian D (1x), Buchanan, Richard W (1x), Dorff, S. (1x), Zarco Castillo Jose (1x), Lee, Cecil (1x)

9…d5 — 4.5% (28 parties)

Ambassadeurs : Najdorf, Miguel (1x), Kremer, Leon (1x), Dimitrov Krastev, Krastjo (1x), Balchikliev, Mihail (1x), Guimard, Carlos E (1x), Eliskases, Erich (1x), Stein, Leonid (1x), Ruchkin, Yuri (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…f5	9…Nc6	9…d6	9…d5
<1800	16	69%	6%	6%	12%
1800-2200	298	66%	13%	8%	4%
2200-2600	151	54%	25%	8%	1%
2600+	1	—	100%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…f5	9…Nc6	9…d6	9…d5
1920s	4	—	50%	25%	—
1930s	11	55%	18%	—	9%
1940s	18	56%	33%	—	6%
1950s	19	47%	32%	—	11%
1960s	10	70%	20%	—	10%
1970s	18	50%	22%	11%	11%
1980s	25	64%	8%	8%	12%
1990s	118	59%	17%	11%	3%
2000s	155	62%	17%	8%	5%
2010s	198	64%	18%	7%	3%
2020s	45	56%	24%	4%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…f5	64%	56%	▼ -8.1%
9…Nc6	18%	24%	▲ +6.8%
9…d6	7%	4%	▼ -2.6%
9…d5	3%	2%	▼ -0.8%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 2 parties

Parties historiques

9…f5 — 60.2% (374 parties)

1931 — Vidmar Milan vs Colle, Edgar — 1/2-1/2 — Bled SLO
1931 — Vidmar, Marjeta vs Hanssen, Lasse Preben — 1-0 — Prague ol Prague CZE
1936 — Mulder, Erik vs Van Scheltinga, Theo — 1-0 — ?
1939 — Castro de Mendoza, R. vs Kerlin, G. — 1/2-1/2 — Buenos Aires ARG
1939 — Kerlin, Gerard vs Bolbochan, Jacobo — 1/2-1/2 — Buenos Aires ARG

9…Nc6 — 18.7% (116 parties)

1927 — Jacobson, Ernst vs Carls, Carl — 0-1 — London ENG
1928 — Zamikhovsky, Abram vs Konstantinopolsky, Alexander — 0-1 — ?
1936 — May, Dezso vs Najdorf, Miguel — 1/2-1/2 — Budapest HUN
1939 — Kan, Ilya A vs Lisitsin, Georgy — 0-1 — Leningrad ch-URS
1946 — Guimard, Carlos E vs O'Kelly, Albéric de Galway — 1-0 — Barcelona ESP

9…d6 — 7.4% (46 parties)

1929 — Nogues Acuna, Alejandro vs Garcia Vera, Oscar — 1-0 — Rosario ARG
1978 — Buchanan, Richard W vs Dorff, S. — 1-0 — Kellner mem,OH
1978 — Zarco Castillo Jose vs Lee, Cecil — 1-0 — Buenos Aires ARG
1980 — Ravikumar, Vaidyanathan vs Wells, Ian D — 1-0 — Manchester open
1987 — Hamm Kathrin vs Amelang, Astrid — 1/2-1/2 — Glauchau

9…d5 — 4.5% (28 parties)

1933 — Najdorf, Miguel vs Kremer, Leon — 1-0 — Warsaw POL
1943 — Dimitrov Krastev, Krastjo vs Balchikliev, Mihail — 1/2-1/2 — Sofia BUL
1954 — Guimard, Carlos E vs Eliskases, Erich — 1/2-1/2 — Mar del Plata ARG
1956 — Stein, Leonid vs Ruchkin, Yuri — 1-0 — Soviet Union
1960 — Bachtiar, Arovah vs Rantanen, Matti — 0-1 — Leipzig GER

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