E19d — Queen’s Indian: Old Main Line, 9.Qxc3 Be4

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.Qxc3 Be4 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

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

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

Plans. Be3 (Développer Bc1) ; 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 f5, des fous actifs en e4 et e7 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2.

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

Plans. ...Nc6 (Développer Nb8) ; ...Bg4 (Clouer Nf3) ; ...c5 (Rupture) ; ...d6 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v0), ● g5 (2v1)	● f5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Be4		● Be4 Actif (mob. 9)
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
1937 Semmering/Baden – Round 9 – Reshevsky, Samuel – 1-0 – Eliskases, Erich – G33 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. Qxc3 Be4 10. Rd1 d6
1939 Bad Oeynhausen ch-GER – Round 1 – Mueller, Helge – 1/2-1/2 – Lokvenc, Josef – 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. Qxc3 Be4 10. Bf4 f5
1941 Aguas de Sao Pedro – Round 8 – Bolbochan, Julio – 1/2-1/2 – Luckis, Marcos – G8 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Ne5 Bxg2
1941 Mar del Plata – Round 1 – Eliskases, Erich – 1/2-1/2 – Luckis, Marcos – G3 1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. Nc3 O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. b3 c6
1943 Prague – Round 19 – Saemisch, Friedrich – 1/2-1/2 – Keres, Paul – G154 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. Qxc3 Be4 10. Rd1 d6
1946 POL Ch – Round 9 – Szapiro, Marek – 0-1 – Sliwa, Bogdan – G53 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. Qxc3 Be4 10. Qe3 d5
1946 USA Ch New York, NY USA – Round 1 – Levin, Jerome A – 1/2-1/2 – Kashdan, Isaac – G33 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. Qxc3 Be4 10. Qe3 d5
1946 Zagreb ch YUG – Round 1 – Vidmar, Milan Jr – 1/2-1/2 – Simonovic, Borko – G1 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 Be4 9. O-O O-O 10. Bf4 Qc8
1947 Mar del Plata – Round 16 – Hounie Fleurquin, Carlos – 0-1 – Pilnik, Herman – G142 1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Bf4 c6
1947 Warsaw – Round 2 – Smyslov, Vladimir – 1/2-1/2 – Pachman, Ludek – G14 1. Nf3 Nf6 2. d4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. c4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. b3 c6
1948 Bad Gastein – Round 7 – Toth, Sz – 1-0 – Beni, Alfred – G49 1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. c4 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Bf4 c6
1948 Mar del Plata – Round 7 – Szabo, Ladislav – 1-0 – Bolbochan, J. – G62 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. Qxc3 Be4 10. Rd1 f5
1948 Mar del Plata – Round 9 – Szabo, Ladislav – 1-0 – Luckis, Marcos – G77 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. Qxc3 Be4 10. b3 d6
1948 Moskou ch-URS – Round 6 – Lilienthal, Andor – 1/2-1/2 – Alatortsev, Vladimir N. – G57 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. Qxc3 Be4 10. Rd1 d6
1949 JUG Ch – Round 10 – Vukovic, Sava – 1/2-1/2 – Nedeljkovic, Srecko M – G45 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. Qxc3 Be4 10. Ne5 Bxg2
1950 Amsterdam – Round 10 – Euwe, Max – 1/2-1/2 – Najdorf, Miguel – G102 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. Qxc3 Be4 10. Bf4 d6
1950 Amsterdam – Round 9 – Najdorf, Miguel – 1-0 – Kottnauer, Cenek – G92 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. Qxc3 Be4 10. Rd1 Qc8
1950 Candidats Tournament – Round 16 – Najdorf, Miguel – 1/2-1/2 – Keres, Paul Petrovich – G70 1. d4 e6 2. Nf3 Nf6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. b3 c5
1950 Candidats Tournament – Round 18 – Najdorf, Miguel – 1/2-1/2 – Smyslov, Vasily – G75 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. Qxc3 Be4 10. b3 c5
1950 HUN Ch 05th – Round 11 – Fuster, Geza – 0-1 – Pogats, Jozsef Jr. – G18 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. Qxc3 Be4 10. Bf4 Qc8
1950 Szcawno Zdroj – Round ? – Szabo, Laszlo – 1/2-1/2 – Shapira, Lilia – G20 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. d4 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O Be4 10. Rd1 d6
1951 DDR Ch – Round 11 – Platz, Hans – 1/2-1/2 – Nuesken Fritz – G25 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. Qxc3 Be4 10. Rd1 d5
1951 Hungary Ch – Round 20 – Barcza, Gedeon – 1-0 – Negyesy, Gyorgy – G72 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. Qxc3 Be4 10. Rd1 c6
1951 Hungary Ch – Round 7 – Barcza, Gedeon – 1/2-1/2 – Kluger, Gyula – G46 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 e6 5. O-O Be7 6. Nc3 O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Rd1 d6
1951 Mar del Plata zt – Round 10 – Bolbochan, J. – 1-0 – Wexler, Bernardo – G95 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. Qxc3 Be4 10. Rd1 c6
1951 Mar del Plata zt – Round 19 – Letelier Martner, Rene – 1-0 – Mangini, Jose Henrique de Mello – G184 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. Qxc3 Be4 10. b3 d6
1951 Staunton Memorial – Round 15 – Unzicker, Wolfgang – 1/2-1/2 – Matanovic, Aleksandar – G106 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. Qxc3 Be4 10. b3 f5
1951 URS Ch sf – Round 3 – Kholmov, Ratmir D – 1-0 – Levenfish, Grigory – G4 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. Qxc3 Be4 10. b3 d6
1951 YUG Ch 6th – Round 3 – Udovcic, Mijo – 1/2-1/2 – Janosevic, Dragoljub – 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. Qxc3 Be4 10. Ne5 Bxg2
1952 Budapest – Round 9 – Szabo, Laszlo – 1-0 – Keres, Paul – G81 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. Qxc3 Be4 10. Bf4 d6
1952 Budapest HUN – Round ? – Aczel Szabo, Janos – 1-0 – Keres, Paul Petrovich – G18 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. Qxc3 Be4 10. Bf4 d6
1952 Hoogovens – Round 4 – Bouwmeester, Hans – 1/2-1/2 – Yanofsky, Daniel Abraham – G23 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. Qxc3 Be4 10. Bf4 d6
1952 JUG Ch – Round 7 – Gligorić, Svetozar – 0-1 – Matanovic, Aleksandar – G42 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. Qxc3 Be4 10. Bf4 d6
1952 Liberation – Round 8 – Golombek, Harry – 1/2-1/2 – Germek, Milan – G30 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O Be4 10. Bf4 d6
1952 Mar del Plata – Round 12 – German, Eugenio – 1-0 – Letelier Martner, Rene – G90 1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Bf4 d6
1952 YUG Ch – Round 10 – Krzisnik, Zvonko – 1/2-1/2 – Djurasevic, Bozidar – G14 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. Qxc3 Be4 10. Ne5 Bxg2
1953 Bucharest – Round 14 – O'Kelly de Galway, Alberic – 1/2-1/2 – Szabo, Ladislav – G132 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. Qxc3 Be4 10. Bf4 d6
1953 CSR Ch Prague – Round 12 – Kozma, Julius – 1/2-1/2 – Ujtelky, Maximilian – G75 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. Qxc3 Be4 10. b3 c6
1953 Mar del Plata – Round 8 – Jauregui, Carlos – 0-1 – Wexler, Bernardo – 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. Qxc3 Be4 10. Rd1 c6
1954 Mar del Plata – Round 16 – Dodero, Emilio – 1/2-1/2 – Eliskases, Erich – G123 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. Qxc3 Be4 10. Bf4 d6
1955 Gecsei Memorial – Round 7 – Hajtun, Jozsef – 1/2-1/2 – Negyesy, Gyorgy – G24 1. Nf3 Nf6 2. d4 b6 3. c4 e6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. b3 c5
1955 Gothenburg Interzonal – Round 17 – Filip, Miroslav – 1/2-1/2 – Keres, Paul Petrovich – G159 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. Qxc3 Be4 10. b3 c5
1956 CSR Ch – Round 10 – Kozma, Julius – 1/2-1/2 – Zíta, František – G86 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. Qxc3 Be4 10. Rd1 d6
1956 URS Ch sf – Round ? – Geller, Alexander – 1/2-1/2 – Rovner, Dmitry – G64 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. Qxc3 Be4 10. b3 c5
1957 CSR Ch – Round 13 – Dolezal, Jiri – 1/2-1/2 – Podgorny, Jiri – G52 1. c4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. Nc3 O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Bf4 c6
1957 Wageningen zt – Round 2 – Kolarov, Atanas S. – 1/2-1/2 – Hanninen, Veikko – G7 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. Qxc3 Be4 10. Bf4 c6
1960 BUL-ch14 Sofia BUL – Round 4 – Kolarov, Atanas S. – 1-0 – Chipev Teodor – 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. Qxc3 Be4 10. b3 c5
1960 Leipzig olm prel – Round 9 – Pfeiffer, Gerhard – 1/2-1/2 – Rossolimo, Nicolas – G308 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O Be4 10. b3 d6
1961 Maroczy Memorial Budapest HUN – Round 1 – Barcza, Gedeon – 1/2-1/2 – Bronstein, David I – G59 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. Qxc3 Be4 10. Rd1 f5
1963 Leningrad ch-URS – Round 1 – Osnos, Viatcheslav – 1/2-1/2 – Kholmov, Ratmir D – G49 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. Qxc3 Be4 10. b3 c5
1963 Piatigorsky Cup 1st – Round 2 – Olafsson, Fridrik – 1/2-1/2 – Najdorf, Miguel – G2 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. Qxc3 Be4 10. Bf4 c6
1963 Piatigorsky Cup 1st – Round 4 – Najdorf, Miguel – 1-0 – Reshevsky, Samuel – 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. Qxc3 Be4 10. Bf4 c6
1964 ARG Ch – Round 15 – Eliskases, Erich – 1/2-1/2 – De Las Heras, Juan Carlos – G64 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. Qxc3 Be4 10. Rd1 c6
1964 Tel Aviv olm fin-A – Round 4 – Popov, Luben – 1/2-1/2 – Udovcic, Mijo – G78 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. Qxc3 Be4 10. b3 Bf6
1965 Pardubice – Round 17 – Marshalek, Joseph – 1/2-1/2 – Pithart, Frantisek – G105 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. Qxc3 Be4 10. b3 c6
1966 Blitz Match – Round 12 – Rakovsky, Emile – 1-0 – Novak, Ervin – G16 1. Nf3 Nf6 2. g3 b6 3. d4 Bb7 4. c4 e6 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. b3 c6
1966 Clare Benedict Cup – Round 1 – Kestler, Hans-Guenther – 0-1 – Zuidema, Coen – G2 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. Qxc3 Be4 10. Rd1 c6
1967 Sousse Interzonal – Round 22 – Hort, Vlastimil – 1/2-1/2 – Matanovic, Aleksandar – G203 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. Qxc3 Be4 10. Bf4 Qc8
1967 Zierikzee ch-NED – Round 9 – Rosenthal, Max Manuel – 1/2-1/2 – Zuidema, Coen – G43 1. c4 Nf6 2. Nf3 e6 3. d4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Bf4 c6
1968 CSR Ch – Round 4 – Hort, Vlastimil – 1/2-1/2 – Augustin, Josef – G31 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. Qxc3 Be4 10. Bf4 d6
1968 Vinkovci – Round 6 – Gheorghiu, Florin – 1/2-1/2 – Matanovic, Aleksandar – G35 1. c4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. d4 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Rd1 c6
1969 Luhacovice – Round 13 – Lengyel, Agnes – 1/2-1/2 – Hort, Vlastimil – G93 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. Qxc3 Be4 10. b3 f5
1969 Villa Gesell tt – Round 7 – Ocampo Vargas, Raul – 1-0 – Luckis, Marcos – G32 1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. b3 d6
1971 Hoogovens – Round 5 – Najdorf, Miguel – 1/2-1/2 – Petrosian, Tigran L. – G85 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. Qxc3 Be4 10. Rd1 Bf6
Bugojno 1982 – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Petrosian, Tigran V. – G10 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. Qxc3 Be4 10. Rd1 Bf6
Candidats qf1 1977 – Round 10 – Petrosian, Tigran V. – 1/2-1/2 – Korchnoi, Viktor – G6 1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Bf4 Nc6

E19d — 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.Qxc3 Be4

Eval: [+0.27]

Les coups candidats

10.Bf4 — 25.0% (166 parties)

Ambassadeurs : Najdorf, Miguel (3x), Fedukin, Alexandre (3x), Pilnik, Herman (2x), Hort, Vlastimil (2x), Matanovic, Aleksandar (2x), Szabo, Ladislav (2x), Keres, Paul (2x), Euwe, Max (2x)

10.Rd1 — 22.0% (146 parties)

Ambassadeurs : Polugaevsky, Lev (4x), Barcza, Gedeon (3x), Eliskases, Erich (2x), Alekhine, Alexander (2x), Bolbochan, J. (2x), Lachut, Jan (2x), Wexler, Bernardo (2x), Szabo, Ladislav (2x)

10.Ne1 — 20.2% (134 parties) →

Ambassadeurs : Bolbochan, J. (4x), Luckis, Marcos (4x), Sarosy, Zoltan L (4x), Keres, Paul Petrovich (3x), Kottnauer, Cenek (3x), Beliavsky, Alexander G (3x), Alekhine, Alexander (2x), Lilienthal, Andor (2x)

10.b3 — 17.6% (117 parties)

Ambassadeurs : Letelier Martner, Rene (3x), Luckis, Marcos (3x), Najdorf, Miguel (3x), Gheorghiu, Florin (3x), Keres, Paul Petrovich (2x), Popov, Luben (2x), Kholmov, Ratmir D (2x), Mangini, Jose Henrique de Mello (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Bf4	10.Rd1	10.Ne1	10.b3
<1800	11	64%	27%	—	9%
1800-2200	142	25%	20%	11%	14%
2200-2600	282	24%	26%	16%	20%
2600+	16	19%	38%	6%	25%

Évolution par décennie (% des parties)

Décennie	N parties	10.Bf4	10.Rd1	10.Ne1	10.b3
1930s	3	33%	67%	—	—
1940s	45	7%	16%	60%	9%
1950s	58	28%	16%	24%	26%
1960s	43	19%	19%	33%	26%
1970s	60	23%	17%	38%	18%
1980s	34	38%	15%	29%	15%
1990s	81	26%	16%	21%	16%
2000s	136	30%	21%	11%	16%
2010s	174	26%	28%	7%	18%
2020s	29	14%	48%	3%	17%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Bf4	26%	14%	▼ -12.1%
10.Rd1	28%	48%	▲ +20.1%
10.Ne1	7%	3%	▼ -4.0%
10.b3	18%	17%	▼ -0.6%

Joueurs célèbres

Champions du monde dans cette position

Alekhine, Alexander — 4 parties
Euwe, Max — 3 parties
Smyslov, Vladimir — 1 partie

Parties historiques

10.Bf4 — 25.0% (166 parties)

1939 — Mueller, Helge vs Lokvenc, Josef — 1/2-1/2 — Bad Oeynhausen ch-GER
1946 — Vidmar, Milan Jr vs Simonovic, Borko — 1/2-1/2 — Zagreb ch YUG
1947 — Hounie Fleurquin, Carlos vs Pilnik, Herman — 0-1 — Mar del Plata ARG
1948 — Toth, Sz vs Beni, Alfred — 1-0 — Bad Gastein
1950 — Euwe, Max vs Najdorf, Miguel — 1/2-1/2 — Amsterdam NED

10.Rd1 — 22.0% (146 parties)

1937 — Reshevsky, Samuel vs Eliskases, Erich — 1-0 — Semmering AUT
1939 — Alekhine, Alexander vs Loynaz, S. — 1-0 — Caracas VEN
1941 — Canepa, Jose vs Isain, Pedros Santos — 1-0 — Montevideo URU
1943 — Guimard, Jean Louis vs Stahlberg, Adam — 0-1 — Buenos Aires ARG
1943 — Saemisch, Friedrich vs Keres, Paul — 1/2-1/2 — Prague CZE

10.Ne1 — 20.2% (134 parties)

1940 — Euwe, Max vs Keres, Paul Petrovich — 1/2-1/2 — Match Amsterdam NED
1941 — Lilienthal, Andor vs Keres Paul Petrovich — 1-0 — Moscow RUS
1941 — Lilienthal, Andor vs Keres, Paul — 1-0 — Leningrad- Moscow URS
1942 — Maderna, Carlos vs Luckis, Marcos — 1-0 — Mar del Plata ARG
1942 — Kottnauer, Cenek vs Alekhine, Alexander — 0-1 — Prague CZE

10.b3 — 17.6% (117 parties)

1941 — Eliskases, Erich vs Luckis, Marcos — 1/2-1/2 — Mar del Plata ARG
1942 — Guimard, Carlos E vs Rossetto, Hector — 1-0 — Buenos Aires ARG
1947 — Smyslov, Vladimir vs Pachman, Ludek — 1/2-1/2 — Warsaw POL
1948 — Szabo, Ladislav vs Luckis, Marcos — 1-0 — Mar del Plata ARG
1950 — Najdorf, Miguel vs Keres, Paul Petrovich — 1/2-1/2 — Budapest HUN

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