E15c — Queen’s Indian: 4.g3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 Ba6

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 Ba6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Attaque sur le roi adverse resté au centre.

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

Côté adverse. Le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b1, le fou f1 et les tours a1 et h1).

Plans. e4 (Centre d4+e4, menace e5, libère Bf1) ; Nc3 (Développer Nb1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Attaque sur le roi adverse resté au centre.

Atouts. Les Noirs s'appuient sur un fou actif en a6.

Côté adverse. Le fou enfermé en f1, le roi resté au centre et une pièce en prise (le pion en c4).

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nc6 (Développer Nb8) ; ...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 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 2)
Ba6		● Ba6 Actif (mob. 4)
Paire de fous	Non	Non
Non développées	4 (● b1, ● f1, ● a1, ● h1)	3 (● b8, ● a8, ● h8)

Sécurité du roi

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

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

Partie
19. European Teams 2013 – Round 6.6 – Hracek, Zbynek – 1-0 – L'Ami, Erwin – G228 1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 d5 8. cxd5 Ne4 9. Qc2 exd5 10. Nc3 Nxc3
1934 Ujpest – Round ? – Frydman, Paulino – 1-0 – Steiner, Endre – G116 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. O-O cxd4 10. Qa4 Qc8
1934 Ujpest – Round 1 – Frydman, Paulino – 1-0 – Joyeux Steiner, Gael – G54 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. O-O cxd4 10. Qa4 Qc8
1934 Ujpest – Round 1 – Gruenfeld, Ernst – 1-0 – Joyeux Steiner, Gael – G55 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Na3 O-O 8. Bg2 d5 9. O-O Ne4 10. Qc2 Nd6
1935 Tatatovaros – Round 5 – Znosko-Borovsky, Eugene – 1-0 – Steiner, Endre – G30 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1936 Budapest – Round 5 – May, Dezso – 1/2-1/2 – Steiner, Endre – G21 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. b3 c5 8. Nc3 d5 9. cxd5 exd5 10. Bg2 Nc6
1936 Muenchen ol – Round 18 – Schreiber, Mirko – 0-1 – Steiner, Endre – G51 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1937 Kemeri – Round 15 – Berg, Terje Jensen – 0-1 – Steiner, Endre – G139 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Qc2 c5 8. dxc5 bxc5 9. Bg2 Nc6 10. O-O O-O
1937 Stockholm ol – Round 5 – Kashdan, Isaac – 0-1 – Joyeux Steiner, Gael – G29 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1937 Stockholm ol – Round 7 – Baert, Andy – 0-1 – Joyeux Steiner, Gael – G45 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1937 Stockholm SWE – Round 13 – Raud, Anthony – 0-1 – Steiner, Endre – G58 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Na3 d6 8. Bg2 Nbd7 9. O-O O-O 10. Rfc1 Qe7
1938 Ljubljana – Round 1 – Pirc, Vasja – 0-1 – Szabo, Ladislav – G10 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1938 Ljubljana – Round 2 – Vidmar, Milan Jr – 0-1 – Kostic, Boris – G23 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1938 Ljubljana – Round 4 – Pirc, Vasja – 0-1 – Szabo, Laszlo – G33 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1938 Noordwijk – Round 1 – Bellod Thomas, Gonzalo – 1/2-1/2 – Pirc, Vasja – G6 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1939 Buenos Aires ol f-A – Round 7 – Aleman Dovo, Miguel – 1-0 – Luckis, Marcos – G133 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1939 Buenos Aires ol f-A – Round 9 – Letelier Martner, Rene – 1-0 – Luckis, Marcos – G169 1. c4 Nf6 2. Nf3 e6 3. d4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1941 Montevideo – Round 10 – Balparda, Julio – 1/2-1/2 – Luckis, Marcos – G40 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c5 8. Bg2 Nc6 9. d5 exd5 10. cxd5 Nb4
1945 Novi Sad – Round 17 – Tot, Bora – 1/2-1/2 – Kostic, Boris – G166 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1946 JUG Ch – Round 9 – Tomovic, Vasilje – 1/2-1/2 – Kostic, Boris – G29 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 d5 8. Bg2 O-O 9. Nc3 c6 10. Ne5 Nfd7
1947 Hungary – Round 1 – Szabo, Ladislav – 0-1 – Barcza, Gedeon – G13 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 d6 8. Bg2 Nbd7 9. O-O Bb7 10. Qc2 O-O
1948 GBR Ch 35th – Round 2 – Golombek, Harry – 0-1 – Thomas, George Alan – G7 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1948 Karlovy Vary – Round 5 – Vidmar, Marjeta – 1-0 – Barcza, Gedeon – G55 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 d6 8. Bg2 Bb7 9. O-O Qe7 10. Nb5 O-O
1948 Mar del Plata – Round 4 – De Freitas, Manuela Schmitz – 1-0 – Szabo, Ladislav – G38 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1952 Moskou ch-URS – Round 1 – Goldenov, Boris P – 1/2-1/2 – Konstantinopolsky, Alexander – G87 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c5 8. Bg2 Nc6 9. O-O O-O 10. Nc3 d5
1953 HUN Ch Budapest HUN – Round ? – Florian, Tibor – 1/2-1/2 – Barcza, Gedeon – G54 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 O-O 8. Bg2 c6 9. O-O d5 10. Ne5 Nfd7
1954 URS Team Ch – Round 3 – Aronson, Lev – 1/2-1/2 – Konstantinopolsky, Alexander – G51 1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 O-O 8. Bg2 d5 9. O-O c6 10. Nc3 Nbd7
1956 Alekhine Memorial – Round 1 – Gligorić, Svetozar – 1/2-1/2 – Szabo, Laszlo – G39 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 d5 8. Bg2 O-O 9. O-O c5 10. Nc3 Nc6
1959 Marianske Lazne – Round 8 – Minev, Nikolay N – 0-1 – Szabo, Laszlo – G56 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. Qa4 Qc8 10. Ne5 Nxd4
1960 Moscow CCCT – Round 3 – Kholmov, Ratmir D – 1-0 – Minev, Nikolay N – G13 1. c4 Nf6 2. Nf3 e6 3. d4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 d5 8. Bg2 c6 9. O-O Nbd7 10. Rac1 O-O
1960 URS Ch sf – Round 8 – Simagin, Vladimir – 1/2-1/2 – Polugaevsky, Lev – G60 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 d5 8. cxd5 Nxd5 9. Bg2 Nd7 10. Nc3 Bb7
1961 Baku ch-URS – Round 3 – Bronstein, David I – 1/2-1/2 – Polugaevsky, Lev – G35 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. O-O O-O 10. Rc1 Nbd7
1962 Olympiad Varna BUL – Round ? – Cobo Arteaga, Eldis – 1/2-1/2 – Szabo, Laszlo – G58 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1962 URS Team Ch – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Polugaevsky, Lev – G43 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. O-O O-O 10. Rc1 Nbd7
1962 Varna olm – Round 4 – Cobo Arteaga, Eldis – 1/2-1/2 – Szabo, Ladislav – G167 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1963 Bad Liebenstein – Round 13 – Minev, Nikolay N – 1/2-1/2 – Liebert, Heinz – G89 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 c6 9. O-O d5 10. Ne5 Bb7
1963 GDR Ch Aschersleben GER – Round 3 – Neukirch, Detlef – 0-1 – Liebert, Heinz – G15 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. dxc5 bxc5 9. Bg2 Nc6 10. O-O O-O
1963 Piatigorsky Cup – Round 11 – Benko, Pal – 1-0 – Olafsson, Fridrik – G23 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 c6 9. O-O d6 10. Rfd1 Nbd7
1963 Rubinstein Memorial – Round 7 – Balcerowski, Witold – 1/2-1/2 – Liebert, Heinz – G44 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1964 DDR Ch 14. Magdeburg GER – Round 6 – Baumbach, Friedrich, Dr. – 1/2-1/2 – Liebert, Heinz – G4 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 c6 8. Bg2 O-O 9. O-O d5 10. cxd5 cxd5
1964 Hoogovens – Round 1 – Portisch, Lajos – 1-0 – Zuidema, Coen – G17 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Ba6 7. Na3 c6 8. Bg2 d6 9. O-O O-O 10. Rfd1 Qe7
1964 Zinnowitz Zinnowitz GER – Round 10 – Popov, Luben – 1/2-1/2 – Liebert, Heinz – G38 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 c6 9. O-O d5 10. cxd5 cxd5
1964 Zinnowitz Zinnowitz GER – Round 8 – Baumbach, Friedrich, Dr. – 1/2-1/2 – Liebert, Heinz – G30 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 c6 9. O-O d5 10. cxd5 cxd5
1965 Hungary – Round 1 – Flesch, Janos – 1-0 – Haag, Ervin – G44 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 c6 8. Bg2 d6 9. O-O O-O 10. Rac1 Nbd7
1965 Hungary – Round 1 – Kluger, Gyula – 1/2-1/2 – Haag, Ervin – G42 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Nc3 d5 9. e3 Nbd7 10. Bd3 O-O
1965 It Zinnowitz GER – Round 14 – Spassov, Liuben – 0-1 – Haag, Ervin – G33 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1965 Leipzig Inter 1st – Round 10 – Trifunovic, Petar – 1/2-1/2 – Liebert, Heinz – G11 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 c6 8. Bg2 d5 9. O-O O-O 10. Ne5 Nfd7
1966 IBM-B – Round 9 – Mueller, Heinz – 0-1 – Konstantinopolsky, Alexander – G30 1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 c5 9. O-O d5 10. Rac1 Nbd7
1966 Kecskemet Laszlo Toth Memorial – Round 2 – Lengyel, Laszlo – 1/2-1/2 – Portisch, Lajos – G9 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 Bb7 9. O-O d6 10. Nb5 Nbd7
1966 Sarajevo Sarajevo BIH – Round 11 – Ivkov, Borislav – 1/2-1/2 – Tal, Mikhail – G36 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 O-O 9. O-O d5 10. Ne5 Nfd7
1966 Student Olympiad fA – Round 11 – Kolbak, Jens – 1-0 – Spassov, Liuben – G15 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 c6 9. O-O d6 10. Rfe1 Nbd7
1966 Zinnowitz Zinnowitz GER – Round 3 – Nei, Iivo – 1/2-1/2 – Liebert, Heinz – G8 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. O-O O-O 10. Ne5 Bb7
1967 Sochi – Round 1 – Zhukhovitsky, Samuel – 1/2-1/2 – Liebert, Heinz – G9 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. Bg2 Nc6 9. dxc5 bxc5 10. O-O O-O
1967 Sochi – Round 15 – Flesch, János – 1/2-1/2 – Liebert, Heinz – G118 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 c6 8. Bg2 O-O 9. O-O d5 10. Rac1 Nbd7
1968 Reykjavik – Round 1 – Olafsson, Fridrik – 1/2-1/2 – Szabo, Ladislav – G26 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 Bb7 9. O-O d6 10. Rac1 Nbd7
1968 Rubinstein Memorial – Round 7 – Padevsky, Nikola – 1/2-1/2 – Soos, Bela – G42 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. dxc5 bxc5 9. Bg2 Nc6 10. O-O O-O
1968 Skopje/Ohrid – Round 17 – Bukic, Enver – 1/2-1/2 – Matanovic, Aleksandar – G141 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. Ne5 Nfd7 10. Nxd7 Qxd7
1969 Buesum – Round 8 – Ivkov, Borislav – 1-0 – Szabo, Laszlo – G35 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 Bb7 9. O-O d6 10. Nb5 Qe7
1969 Capablanca Memorial – Round 7 – Jimenez Zerquera, Eleazar – 1/2-1/2 – O'Kelly, Albéric de Galway – G55 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. O-O O-O 10. Ne5 Nfd7
1969 Corr – Round ? – Bogic, Stevan – 0-1 – Konstantinopolsky, Alexander – G4 1. d4 e6 2. Nf3 Nf6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 c5 8. dxc5 bxc5 9. Bg2 Nc6 10. O-O O-O
1969 Malaga – Round 1 – Marovic, Drazen – 1-0 – Lengyel, Laszlo – G7 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 d5 9. O-O c6 10. Rac1 Nbd7
1969 Vrsac – Round 6 – Ivkov, Borislav – 1/2-1/2 – Benko, Pal – G40 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 Bb7 8. Bg2 O-O 9. O-O d6 10. Rfe1 Nbd7
1969 Vrsac – Round 7 – Benko, Pal – 1-0 – Matanovic, Aleksandar – G46 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 Bb7 8. Bg2 O-O 9. O-O d6 10. Rfe1 Nbd7
1969 YUG Ch 24th – Round 9 – Vukic, Milan – 1/2-1/2 – Parma, Bruno – G28 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Qc2 O-O 8. Bg2 c6 9. O-O d5 10. Nbd2 Nbd7
1973 Leningrad Interzonal – Round 9 – Taimanov, Mark – 1/2-1/2 – Larsen, Bent – G52 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 Bb7 8. Bg2 d6 9. O-O Nbd7 10. Nh4 Bxg2
1974 Manila – Round 15 – Petrosian, Tigran V. – 1/2-1/2 – Larsen, Bent – G56 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 O-O 8. Bg2 d5 9. cxd5 exd5 10. Nc3 c6
20. European Teams 2015 – Round 1.5 – Dvirnyy, Danyyil – 1/2-1/2 – Short, Nigel D – G39 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. O-O O-O 10. Rc1 Nbd7
3. London Chess Classic 2011 – Round 3 – Aronian, Levon – 1-0 – Short, Nigel D – G9 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 O-O 8. Bg2 d5 9. cxd5 exd5 10. O-O Qd6
7. Mikhail Tal Memorial 2012 – Round 7 – Aronian, Levon – 1/2-1/2 – Grischuk, Alexander – G34 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Nc3 d5 9. e4 Nxe4 10. Nxe4 dxe4
8. Tal Mem Blitz 2013 – Round 1 – Carlsen, Magnus – 1/2-1/2 – Andreikin, Dmitry – G3 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. Qc2 O-O 10. Nbd2 Nbd7
Bugojno 1978 – Round 14 – Miles, Anthony J – 1/2-1/2 – Larsen, Bent – G77 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 Bb7 8. Bg2 O-O 9. O-O d6 10. Nc3 Ne4
Corus A 2007 – Round 6 – Radjabov, Teimour – 1/2-1/2 – Ponomariov, Ruslan – G36 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 d5 8. cxd5 exd5 9. Nc3 c5 10. Bg2 Nc6
Erevan ch-URS 1975 – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Bronstein, David Ionovich – G21 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 d5 8. Bg2 O-O 9. O-O c5 10. cxd5 exd5
Interpolis 1982 – Round 1 – Torre, Eugenio – 1/2-1/2 – Portisch, Lajos – G25 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7
Interpolis 1986 – Round 8 – Beliavsky, Alexander G – 1/2-1/2 – Miles, Anthony J – G25 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. Na3 O-O 8. Bg2 Bb7 9. O-O d6 10. Rfd1 Nbd7
Lucerne 1985 – Round 1 – Portisch, Lajos – 1/2-1/2 – Miles, Anthony J – G5 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. O-O Nbd7 10. cxd5 cxd5
Thessaloniki olm 1984 – Round 11 – Nikolic, Predrag – 1-0 – Miles, Anthony J – G68 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Nc3 d5 9. Bg2 Nbd7 10. Qb2 dxc4
Thessaloniki olm 1984 – Round 14 – Torre, Eugenio – 1/2-1/2 – Miles, Anthony J – G86 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. Nc3 Nbd7 10. Qb2 O-O
Tilburg 1982 – Round 1 – Torre, Eugenio – 1/2-1/2 – Portisch, Lajos – G2 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7
USA Ch 2016 – Round 6.4 – Chandra, Akshat – 1/2-1/2 – Xiong, Jeffery – G33 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. O-O O-O 10. Rc1 Nbd7
World Blitz 2019 – Round 13.62 – Yanchenko, Roman – 0-1 – Postny, Evgeny – G904 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7
World Blitz Final 2012 – Round 7 – Gelfand, Boris – 1/2-1/2 – Grischuk, Alexander – G51 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 c6 8. Bg2 d5 9. O-O O-O 10. Rc1 Nbd7
XXIV SuperGM 2007 – Round 14 – Leko, Peter – 1-0 – Carlsen, Magnus – G49 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ba6 7. b3 O-O 8. Nc3 d5 9. cxd5 exd5 10. Bg2 Re8

E15c —

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 Ba6

Les coups candidats

7.b3 — 74.8% (608 parties)

Ambassadeurs : Miles, Anthony J (20x), Bernal Varela, Nelson (17x), Balta, Mihai Victor (16x), Kosteniuk, Alexandra (9x), Vesselovsky, Serguei (9x), Popov, Vladimir Valentinovich (8x), Daulyte-Cornette, Deimante (7x), Postny, Evgeny (7x)

7.Qc2 — 15.3% (124 parties)

Ambassadeurs : Liebert, Heinz (9x), Steiner, Endre (4x), Szabo, Laszlo (4x), Szabo, Ladislav (3x), Joyeux Steiner, Gael (3x), Pirc, Vasja (3x), Luckis, Marcos (2x), Frydman, Paulino (2x)

7.Na3 — 9.3% (76 parties)

Ambassadeurs : Liebert, Heinz (7x), Miles, Anthony J (4x), Benko, Pal (4x), Ivkov, Borislav (4x), Minev, Nikolay N (3x), Barcza, Gedeon (2x), Szabo, Ladislav (2x), Olafsson, Fridrik (2x)

7.Nc3 — 0.2% (2 parties)

Ambassadeurs : Timoscenko, Gennadij (1x), Kuzmin, Gennadi (1x), Miksovský, Jozef (1x), Ellis, Les (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.b3	7.Qc2	7.Na3	7.Nc3
<1800	9	89%	—	11%	—
1800-2200	132	80%	15%	4%	1%
2200-2600	470	79%	13%	7%	0%
2600+	84	81%	7%	12%	—

Évolution par décennie (% des parties)

Décennie	N parties	7.b3	7.Qc2	7.Na3	7.Nc3
1930s	23	13%	70%	17%	—
1940s	8	25%	50%	25%	—
1950s	6	67%	33%	—	—
1960s	40	22%	25%	52%	—
1970s	28	50%	32%	18%	—
1980s	100	74%	12%	12%	1%
1990s	59	76%	14%	10%	—
2000s	135	82%	8%	10%	—
2010s	358	84%	12%	3%	0%
2020s	56	80%	14%	4%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.b3	84%	80%	▼ -3.7%
7.Qc2	12%	14%	▲ +2.0%
7.Na3	3%	4%	+0.5%
7.Nc3	0%	0%	-0.3%

Joueurs célèbres

Champions du monde dans cette position

Hou, Yifan — 5 parties
Carlsen, Magnus — 5 parties
Ding, Liren — 2 parties
Karpov, Anatoly — 2 parties
Euwe, Max — 1 partie
Tal, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie

Parties historiques

7.b3 — 74.8% (608 parties)

1931 — Russ, Arje vs Konstantinopolsky, Alexander — 0-1 — ?
1936 — May, Dezso vs Steiner, Endre — 1/2-1/2 — Budapest HUN
1939 — Kramer, Hanspeter vs Szabo, Ladislav — 1-0 — Baarn A
1941 — Balparda, Julio vs Luckis, Marcos — 1/2-1/2 — Montevideo URU
1946 — Tomovic, Vasilje vs Kostic, Boris — 1/2-1/2 — Zagreb CRO

7.Qc2 — 15.3% (124 parties)

1934 — Frydman, Paulino vs Joyeux Steiner, Gael — 1-0 — Ujpest
1934 — Frydman, Paulino vs Steiner, Endre — 1-0 — Ujpest
1935 — Znosko-Borovsky, Eugene vs Steiner, Endre — 1-0 — Tatatovaros
1936 — Van Scheltinga, Theo vs Van den Bosch, Johannes — 1/2-1/2 — Zandvoort II
1936 — Schreiber, Mirko vs Steiner, Endre — 0-1 — Munich GER

7.Na3 — 9.3% (76 parties)

1933 — Euwe, Max vs Van den Bosch, Jonkheer Johannes — 1/2-1/2 — The Hague / Leiden NED
1934 — Gruenfeld, Ernst vs Joyeux Steiner, Gael — 1-0 — Ujpest
1937 — Raud, Anthony vs Steiner, Endre — 0-1 — Stockholm SWE
1937 — Friedemann, Anna vs Kostic, Adrijan-Alexander — 1-0 — Stockholm SWE
1947 — Szabo, Ladislav vs Barcza, Gedeon — 0-1 — Budapest HUN

7.Nc3 — 0.2% (2 parties)

1987 — Timoscenko, Gennadij vs Kuzmin, Gennadi — 1-0 — ?
2014 — Miksovský, Jozef vs Ellis, Les — 0-1 — ICCF