E14 — Queen's Indian Defense: Spassky System

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte e5 et la paire de fous.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b1, les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nc3 (Développer Nb1) ; Bd2 (Développer Bc1) ; Bd3 (Développer Bf1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...Bb7 (Fou actif (mobilité 6), Développer c8,) ; ...Nc6 (Développer Nb8) ; ...Bg4 (Clouer Nf3).

Avantages

Faiblesses adverses

Diagonale active

Plans

-0.28 léger avantage noir. Base Masters : Blancs 30.0%, Nulles 44.4%, Noirs 25.7%.

Coups candidats

auto

Analyse coup par coup — 7 demi-coups commentés

1.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3.
1…Nf6 Contrôle e4, d5.
2.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4.
2…e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6.
3.Nf3 Contrôle f4, c5, d5, e5.
3…b6 Prépare le fianchetto du Fou (Bb7).
4.e3 Avancée centrale — contrôle d4, f4. Prépare d4, Bd3, Be2.

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● a7→b6, c7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (3v0), ● e5 (2v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 2)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	5 (b1, c1, f1, a1, h1)	5 (b8, c8, f8, 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, ● e3-e4	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1922 Teplitz-Schoenau – Round 11 – Tartakower, Savielly – 1-0 – Saemisch, Friedrich – G74 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 cxd4 8. Nxd4 Nc6 9. Nxc6 Bxc6 10. e4 d6
1923 Trieste – Round 4 – Tarrasch, Siegbert – 1-0 – Miliani, Luigi – G25 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. e3 b6 5. Nc3 Bb7 6. Bd3 Be7 7. O-O O-O 8. d5 exd5 9. cxd5 d6 10. e4 Nbd7
1925 BCF Ch 18th – Round 2 – Gooding, William – 1-0 – Blake, Joseph – G8 1. d4 Nf6 2. c4 e6 3. Nc3 b6 4. Nf3 Bb7 5. e3 Be7 6. Bd3 c5 7. O-O O-O 8. Qe2 d5 9. b3 Nc6 10. Rd1 cxd4
1929 Karlsbad – Round 1 – Matisons, Hermanis – 1-0 – Colle, Edgar – G70 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 O-O 8. d5 exd5 9. cxd5 d6 10. Bc2 Na6
1930 Liege – Round 9 – Marshall Viele, Fabrizio Aaron – 1-0 – Ahues, Carl – G48 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. c4 Be7 7. Nc3 O-O 8. d5 exd5 9. cxd5 d6 10. e4 a6
1931 SUI ch 35rd – Round 9.1 – Naegeli, Oskar – 0-1 – Zimmermann, Otto – G15 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. e3 Bb7 5. Bd3 c5 6. Nc3 Be7 7. O-O O-O 8. Qe2 d5 9. Rd1 Nc6 10. b3 cxd4
1933 Memorial Giuseppe Padulli – Round 7 – Rosselli del Turco, Stefano – 1/2-1/2 – Stalda, Giuseppe – G4 1. d4 Nf6 2. e3 c5 3. Bd3 b6 4. Nf3 Bb7 5. c4 e6 6. O-O Be7 7. Nc3 O-O 8. b3 d6 9. Bb2 Nbd7 10. Qe2 Qc7
1938 Bad Harzburg – Round 3 – Bogoljubow, Efim – 1-0 – Heinicke, Gisbert – G8 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. Nc3 Be7 7. O-O O-O 8. d5 d6 9. e4 e5 10. g3 Bc8
1944 Moskou ch-URS – Round 12 – Kotov Lundqvist, Alex – 0-1 – Botvinnik, Mikhail – G109 1. d4 Nf6 2. Nf3 b6 3. e3 c5 4. Bd3 Bb7 5. c4 e6 6. O-O Be7 7. Nc3 d5 8. cxd5 exd5 9. Bb5+ Kf8 10. b3 a6
1947 Mar del Plata – Round 1 – Stahlberg, Gideon – 1-0 – Luckis, Marcos – G6 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Be7 5. Bd3 d5 6. b3 Nbd7 7. O-O O-O 8. Bb2 Ne4 9. Qe2 Bb7 10. Nc3 a6
1947 Nt Essen GER – Round 6 – Heinicke, Herbert – 0-1 – Rautenberg, Wilhelm – G12 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 O-O 8. d5 exd5 9. cxd5 d6 10. e4 Nbd7
1950 Moscow Ch – Round 1 – Petrosian, Tigran A. – 0-1 – Sherbakov, Vitaly – G9 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 Nc6 8. d5 Nb4 9. Be2 exd5 10. a3 dxc4
1951 Augsburg – Round 6 – Heinicke, Herbert – 1/2-1/2 – Teschner, Rudolf – G26 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 a6 8. b3 d5 9. Bb2 O-O 10. Qe2 dxc4
1951 DDR Ch 02nd – Round 7 – Zirngibl, Albert – 1-0 – Kirchhammer, Rudolf – G5 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb4+ 5. Bd2 Qe7 6. Bd3 Bb7 7. O-O Bxd2 8. Nbxd2 d6 9. Qc2 O-O 10. Ne4 Nbd7
1951 Moskou ch-URS – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Keres, Paul – G65 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 d5 8. cxd5 exd5 9. Bb5+ Bc6 10. Qa4 Bxb5
1952 Budapest – Round 6 – Petrosian, Tigran A. – 1-0 – Golombek, Harry – G61 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 d6 8. d5 exd5 9. cxd5 O-O 10. e4 Ba6
1952 Miedzyzdroje – Round 2 – Bobotsov, Milko G – 1/2-1/2 – Pytlakowski, Andrzej – G9 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb4+ 5. Nbd2 O-O 6. Bd3 d5 7. O-O Ba6 8. a3 Be7 9. b3 c5 10. Bb2 Nbd7
1952 Moskou ch-URS – Round 1 – Moiseev, Oleg – 1/2-1/2 – Ilivitsky, Georgy A – G88 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. e3 Bb7 5. Bd3 c5 6. Nc3 Be7 7. O-O O-O 8. d5 exd5 9. cxd5 d6 10. e4 a6
1952 Moskou ch-URS – Round 1 – Simagin, Vladimir – 1/2-1/2 – Bronstein, David I – G62 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Be7 5. Bd3 d5 6. O-O O-O 7. Nc3 Bb7 8. b3 c5 9. Bb2 cxd4 10. Nxd4 dxc4
1953 GDR Ch Jena GER – Round 2 – Mueller, Claus – 1/2-1/2 – Fuchs, Reinhart – G3 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. Nc3 c5 7. O-O O-O 8. d5 exd5 9. cxd5 d6 10. e4 Ba6
1954 Mar del Plata – Round 11 – Bauza, Lorenzo – 0-1 – Perez Alcocer, Jose – G89 1. Nf3 Nf6 2. d4 e6 3. e3 b6 4. Bd3 Bb7 5. O-O Be7 6. c4 c5 7. Nc3 O-O 8. b3 Nc6 9. Bb2 cxd4 10. Nxd4 Nxd4
1954 Munich zt – Round 10 – Jacob, Franz – 0-1 – Kramer, Haije – G62 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 O-O 8. b3 cxd4 9. exd4 d5 10. cxd5 Nxd5
1954 Olympiad final A – Round 1 – Minev, Nikolay N – 1/2-1/2 – Porath, Yosef – G37 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 Nc6 8. b3 O-O 9. Bb2 cxd4 10. exd4 d5
1954 Olympiad final A – Round 1 – Pachman, Ludek – 1-0 – Euwe, Max – G36 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 d5 5. b3 Bd6 6. Bd3 Bb7 7. Bb2 O-O 8. O-O Qe7 9. Qe2 Ne4 10. Nc3 a6
1954 URS Ch sf Gorky – Round 1 – Uusi, Gunnar – 0-1 – Simagin, Vladimir – G1 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. Nc3 Bb7 5. e3 Be7 6. Bd3 c5 7. O-O a6 8. b3 cxd4 9. exd4 d5 10. Bb2 O-O
1955 Aberystwyth ch-BCF – Round 11.2 – Franklin Sheunesu Mhembere – 0-1 – Golombek, Harry – G51 1. d4 Nf6 2. Nf3 b6 3. c4 Bb7 4. e3 e6 5. Bd3 Be7 6. Nc3 c5 7. O-O cxd4 8. Nxd4 O-O 9. e4 d6 10. Qe2 Nbd7
1955 Erfurt – Round 3 – Fuchs, Reinhart – 1/2-1/2 – Kolarov, Atanas S. – G24 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 d5 5. Bd3 Be7 6. O-O O-O 7. b3 c5 8. dxc5 dxc4 9. Bxc4 Bxc5 10. Bb2 Bb7
1955 URS Ch sf Moscow RUS – Round 1 – Antoshin, Vladimir S – 1/2-1/2 – Lisitsin, Georgy – G12 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Ne4 7. Qc2 Bb7 8. Be2 d6 9. Nc3 Nxc3 10. Qxc3 O-O
1955 Zagreb – Round 16 – Filip, Marius Liviu – 1/2-1/2 – Pirc, Vasja – G165 1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. e3 Be7 5. Bd3 d5 6. O-O O-O 7. b3 c5 8. Bb2 Nbd7 9. Nbd2 Bb7 10. Qe2 Ne4
1956 Moscow olm fin-A – Round 1 – Darga, Klaus – 1/2-1/2 – Porath, Yosef – G19 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. e3 Bb7 5. Bd3 Be7 6. O-O O-O 7. Nc3 c5 8. d5 d6 9. e4 e5 10. Ne1 Bc8
1957 Danmarksmesterskabet – Round 8 – Blom, Kaj – 0-1 – Pedersen, Eigil – G29 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. c4 b6 5. Bd3 Bb7 6. Nc3 Be7 7. O-O O-O 8. b3 d5 9. cxd5 cxd4 10. Nxd4 Nxd5
1957 Hastings5758 – Round 1 – Kluger, Gyula – 1-0 – Penrose, Justin – G10 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 d5 8. cxd5 Nxd5 9. Bb5+ Bc6 10. Qa4 Bxb5
1957 Wageningen zt – Round 16 – Alster, Ladislav – 1/2-1/2 – Kolarov, Atanas S. – G47 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 d5 5. Nc3 Be7 6. Qa4+ Bd7 7. Qc2 O-O 8. cxd5 exd5 9. b3 c5 10. Bb2 Nc6
1958 Hamburg Ch – Round 5 – Ahues, Carl – 1/2-1/2 – Rhodin, Bodo – G11 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. Nc3 Be7 7. O-O O-O 8. d5 d6 9. e4 e5 10. Ne1 Nbd7
1959 Madrid – Round 1 – Sicilia Carballo, Mateo – 1/2-1/2 – Golombek, Harry – G7 1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 4. Bd3 c5 5. c4 e6 6. O-O Be7 7. Nc3 O-O 8. d5 exd5 9. cxd5 d6 10. e4 Nbd7
1960 Aalborg – Round 9 – Haahr, Thorkild – 1/2-1/2 – Nielsen, Hartvig – G48 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. c4 Bb4+ 5. Bd2 Bxd2+ 6. Nfxd2 Bb7 7. Bd3 d5 8. Nc3 Nbd7 9. cxd5 exd5 10. O-O O-O
1965 FRG Ch Bad Aibling – Round 15 – Delander, Adolf – 1-0 – Eisinger, Max Jr – G32 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 d5 8. cxd5 exd5 9. Bb5+ Kf8 10. b3 Nc6
1965 Hastings ch-BCF – Round 2 – Ansell, John – 1-0 – Fazekas, Stephan – G29 1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. e3 Bb4+ 5. Bd2 Bxd2+ 6. Nbxd2 Bb7 7. Bd3 O-O 8. O-O c5 9. dxc5 bxc5 10. Rc1 Nc6
1966 Hungary – Round 1 – Flesch, János – 1/2-1/2 – Varnusz, Egon – G38 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. Nc3 c5 7. O-O cxd4 8. Nxd4 Nc6 9. Nxc6 dxc6 10. b3 Qc7
1966 La Habana olm prel – Round 2 – Carrasco Araya, Berna – 0-1 – Sanguineti, Raúl Carlos – G55 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. Nc3 Be7 7. O-O O-O 8. b3 cxd4 9. exd4 d5 10. cxd5 Nxd5
1966 Panamerican – Round ? – Schweber, Samuel – 1-0 – Garcia Martinez, Silvino – G73 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. Nc3 O-O 7. O-O c5 8. Qe2 Nc6 9. d5 exd5 10. cxd5 Nb4
1968 YUG Ch 23th – Round 12 – Pirc, Vasja – 1/2-1/2 – Parma, Bruno – G60 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. Nc3 Be7 7. O-O cxd4 8. Nxd4 Nc6 9. Nxc6 dxc6 10. Qe2 Qc7
1970 Palma de Mallorca Interzonal – Round 5 – Filip, Miroslav – 1/2-1/2 – Mecking, Henrique – G113 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 d5 6. O-O Be7 7. b3 O-O 8. Bb2 c5 9. Nbd2 Nbd7 10. Qe2 Rc8
1970 Palma de Mallorca Interzonal – Round 7 – Taimanov, Mark – 1-0 – Larsen, Bent – G114 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Bb4+ 6. Nbd2 c5 7. O-O O-O 8. a3 Bxd2 9. Bxd2 Be4 10. Bc3 d6
1970 Palma de Mallorca Interzonal – Round 9 – Taimanov, Mark – 1/2-1/2 – Polugaevsky, Lev – G112 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 d5 6. O-O Bd6 7. b3 O-O 8. Bb2 Nbd7 9. Qe2 c5 10. cxd5 Nxd5
1971 Hoogovens – Round 4 – Petrosian, Tigran L. – 1/2-1/2 – Lengyel, Laszlo – G109 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O d5 6. b3 Bd6 7. c4 O-O 8. Bb2 Nbd7 9. Nc3 a6 10. Rc1 Qe7
1971 Moscow – Round ? – Tal, Mihail – 0-1 – Petrosian, Tigran V. – G83 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. Nc3 Be7 7. O-O cxd4 8. exd4 d5 9. b3 O-O 10. Bb2 Nc6
1971 Moscow – Round 1 – Petrosian, Tigran V. – 1-0 – Korchnoi, Viktor – G84 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. Nc3 Be7 7. O-O cxd4 8. exd4 d5 9. Bg5 Nbd7 10. Qe2 O-O
1971 Moscow – Round 1 – Vikulov, Alexander – 0-1 – Dvoretzky, Mark – G112 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. e3 Bb7 5. Bd3 Bb4+ 6. Nbd2 O-O 7. O-O d5 8. a3 Bd6 9. Qe2 Ne4 10. b3 Nd7
1971 Moscow – Round 15 – Uhlmann, Wolfgang – 1/2-1/2 – Parma, Bruno – G87 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O c5 8. dxc5 Bxc5 9. b3 d5 10. Bb2 Nbd7
1972 San Antonio – Round ? – Keres, Paul – 1-0 – Hort, Alex – G48 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. Nc3 d5 7. O-O O-O 8. b3 Nbd7 9. Bb2 c5 10. Qe2 Rc8
1972 San Antonio – Round 1 – Keres, Paul – 1-0 – Hort, Vlastimil – G47 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. Nc3 d5 7. O-O O-O 8. b3 Nbd7 9. Bb2 c5 10. Qe2 Rc8
1972 San Antonio – Round 1 – Keres, Paul – 1-0 – Hort, Vlastimil – G49 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. Nc3 d5 7. O-O O-O 8. b3 Nbd7 9. Bb2 c5 10. Qe2 Rc8
1972 San Antonio – Round 7 – Petrosian, Tigran V. – 1/2-1/2 – Karpov, Anatoly – G46 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Nc3 d5 6. Bd3 Be7 7. O-O O-O 8. b3 c5 9. Bb2 cxd4 10. Nxd4 dxc4
1972 Skopje ol (Men) fin-A – Round 11 – Hamann, Svend – 1/2-1/2 – Bobotsov, Milko G – G162 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 d5 6. O-O Be7 7. b3 O-O 8. Bb2 c5 9. Nbd2 Nbd7 10. Qe2 Ne4
1972 Skopje ol (Men) fin-A – Round 5 – Filip, Miroslav – 1/2-1/2 – Rubinetti, Jorge – G167 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. e3 d5 6. a3 Be7 7. Bd3 b6 8. O-O Bb7 9. b3 Nbd7 10. Bb2 c5
1972 Skopje ol (Men) fin-A – Round 5 – Hamann, Svend – 1/2-1/2 – Pomar Salamanca, Arturo – G166 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. e3 Bb7 6. Bd3 Bxd2+ 7. Nxd2 d5 8. O-O O-O 9. b3 c5 10. dxc5 bxc5
1972 Skopje ol (Men) fin-A – Round 8 – Bobotsov, Milko G – 1/2-1/2 – Andersson, Ulf – G165 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O c5 8. a3 Bxd2 9. Bxd2 Ne4 10. Bxe4 Bxe4
1975 Portoroz/Ljubljana – Round 2 – Osterman, Rudolf – 0-1 – Karpov, Anatoly – G31 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Nc3 d5 6. Bd3 Be7 7. O-O O-O 8. Qe2 c5 9. dxc5 bxc5 10. e4 d4
1975 Portoroz/Ljubljana – Round 7 – Hort, Vlastimil – 1/2-1/2 – Ljubojevic, Ljubomir – G30 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 Be7 5. Nc3 O-O 6. Bd3 b6 7. O-O Bb7 8. d5 exd5 9. cxd5 d6 10. e4 Nbd7
1975 URS Team Ch – Round 1 – Pavlenko, Oleg – 1/2-1/2 – Ruderfer, Mark B – G142 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O d6 7. Nc3 Be7 8. b3 O-O 9. Bb2 cxd4 10. exd4 d5
1975 URS Team Ch – Round 1 – Tal, Mihail – 1/2-1/2 – Karpov, Anatoly – G210 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. e3 Bb7 5. Nc3 d5 6. Bd3 Nbd7 7. O-O Be7 8. Qe2 O-O 9. e4 dxe4 10. Nxe4 c5
1975 URS Team Ch – Round 2 – Lakiunajte, S. – 0-1 – Goldman L – G143 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. O-O O-O 7. Nc3 d5 8. Qe2 c5 9. Rd1 cxd4 10. Nxd4 dxc4
1975 URS Team Ch – Round 2 – Lputian, Smbat G – 0-1 – Kaunas, Kestutis – G145 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Bb4+ 6. Nbd2 Ne4 7. O-O f5 8. Qc2 Nxd2 9. Nxd2 O-O 10. f4 Be7
1975 URS Team Ch – Round 4 – Chukaev, Egor – 0-1 – Susterman, Lazar – G155 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O c5 8. dxc5 Bxc5 9. Qe2 d5 10. Rd1 Nbd7
1975 URS Team Ch – Round 4 – Nevednichaia, Raisa – 1/2-1/2 – Kausilaite, Vilhelmina – G144 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. O-O O-O 7. Nbd2 d5 8. b3 Nbd7 9. Bb2 Ne4 10. Qe2 Nxd2
1975 URS Team Ch – Round 5 – Kozlovskaya, Valentina – 1-0 – Ozola, A. – G147 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb4+ 5. Bd2 Qe7 6. Bd3 Bb7 7. O-O Bxd2 8. Nbxd2 d5 9. cxd5 exd5 10. Rc1 O-O
1975 URS Team Ch – Round 5 – Nevednichaia, Raisa – 1/2-1/2 – Muslimova, Aida – G146 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 exd5 9. Qc2 c5 10. b3 Nc6
Bugojno 1978 – Round 6 – Bukic, Enver – 0-1 – Ljubojevic, Ljubomir – G39 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. Nc3 O-O 8. d5 exd5 9. cxd5 d6 10. e4 Na6
World Blitz 2018 – Round 1.33 – Kovalenko, Igor – 1-0 – Carlsson, Pontus – G23 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. c4 Be7 7. Nc3 O-O 8. d5 exd5 9. cxd5 d6 10. e4 a6

E14a —

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3

Eval: [+0.15]

Les coups candidats

4…Bb7 — 93.3% (7802 parties) →

Ambassadeurs : Chatalbashev, Boris (54x), Lukacs, Peter (49x), ? (42x), Portisch, Lajos (34x), Danner, Georg (29x), Certek, Pavel (26x), Pachman, Ludek (24x), Polugaevsky, Lev (22x)

4…Bb4+ — 3.3% (273 parties) →

Ambassadeurs : Purtseladze, Maka (3x), Tal, Mikhail (2x), Portisch, Lajos (2x), Ulak, Slawomir (2x), Bue, Gunnar (2x), Bensdorp-De Labaca, Marlies (2x), Cook, William (1x), Kay Leather R (1x)

4…d5 — 1.3% (106 parties)

Ambassadeurs : Farago, Ivan (9x), Portisch, Lajos (3x), Nikolic, Predrag (3x), Kolarov, Atanas S. (2x), Pachman, Ludek (2x), Polgar, Susan (2x), Melia, Salome (2x), Reede, Arvo (2x)

4…Be7 — 0.8% (69 parties)

Ambassadeurs : Lechtynsky, Jiri (2x), Van Scheltinga, Theo (1x), O'Kelly de Galway, Alberic (1x), Stahlberg, Gideon (1x), Luckis, Marcos (1x), Gideon, Sthlberg (1x), Najdorf, Miguel (1x), Krupsky, G (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Bb7	4…Bb4+	4…d5	4…Be7
<1800	218	89%	4%	2%	1%
1800-2200	2181	92%	4%	1%	1%
2200-2600	3906	94%	3%	1%	0%
2600+	218	94%	2%	3%	0%

Évolution par décennie (% des parties)

Décennie	N parties	4…Bb7	4…Bb4+	4…d5	4…Be7
1870s	1	100%	—	—	—
1880s	4	75%	25%	—	—
1890s	3	100%	—	—	—
1920s	11	100%	—	—	—
1930s	43	98%	2%	—	—
1940s	42	88%	5%	—	7%
1950s	244	92%	5%	2%	1%
1960s	312	97%	1%	0%	1%
1970s	402	95%	3%	0%	1%
1980s	528	91%	3%	2%	2%
1990s	1355	94%	3%	1%	0%
2000s	2657	93%	4%	1%	1%
2010s	2382	92%	3%	2%	1%
2020s	382	92%	3%	2%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Bb7	92%	92%	-0.0%
4…Bb4+	3%	3%	-0.2%
4…d5	2%	2%	+0.5%
4…Be7	1%	0%	▼ -0.6%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 10 parties
Karpov, Anatoly — 10 parties
Karpov, Aleksandr — 8 parties
Tal, Mikhail — 7 parties
Kramnik, Vladimir — 6 parties
Alekhine, Alexander — 5 parties
Anand, Viswanathan — 4 parties
Botvinnik, Mikhail — 3 parties
Euwe, Max — 2 parties
Ju, Wenjun — 2 parties
Steinitz, Wilhelm — 1 partie
Kasparov, Garry — 1 partie
Hou, Yifan — 1 partie

Parties historiques

4…Bb7 — 93.3% (7802 parties)

1878 — Mason, James vs Blackburne, Joseph — 1/2-1/2 — Paris FRA
1881 — Wayte, William vs Owen, John — 0-1 — Leamington
1883 — McKenzie, George vs Blackburne, Joseph — 1-0 — London ENG
1885 — Mason, James vs Taubenhaus, Jean — 1-0 — Hamburg GER
1890 — Schroeter, Maik vs Goering, H. — 1-0 — Regensburg

4…Bb4+ — 3.3% (273 parties)

1883 — Cook, William vs Kay Leather R — 1/2-1/2 — Birmingham ENG
1935 — Bogoljubow, Efim vs Schaedle Richard — 1-0 — Berlin GER
1941 — Ernst, Wilhelm vs Rellstab, Ludwig — 0-1 — Bad Oeynhausen GER
1948 — Zorat, Paolo vs Benvenuti, Carlo — 0-1 — Venice ITA
1951 — Zirngibl, Albert vs Kirchhammer, Rudolf — 1-0 — Schwerin GER

4…d5 — 1.3% (106 parties)

1954 — Pachman, Ludek vs Euwe, Max — 1-0 — Amsterdam NED
1954 — Pachman, Ludek vs Euwe — 1-0 — Amsterdam (OLympiad)
1955 — Fuchs, Reinhart vs Kolarov, Atanas S. — 1/2-1/2 — Erfurt GER
1957 — Alster, Ladislav vs Kolarov, Atanas S. — 1/2-1/2 — Wageningen NED
1963 — Adamski, Jan vs Tan, Lian Ann — 1/2-1/2 — Vrnjacka Banja SRB

4…Be7 — 0.8% (69 parties)

1946 — Gideon, Sthlberg vs Najdorf, Miguel — 0-1 — Mar del Plata ARG
1947 — Van Scheltinga, Theo vs O'Kelly de Galway, Alberic — 0-1 — Antwerp BEL
1947 — Stahlberg, Gideon vs Luckis, Marcos — 1-0 — Mar del Plata ARG
1952 — Simagin, Vladimir vs Bronstein, David I — 1/2-1/2 — Moskou ch-URS
1955 — Filip, Marius Liviu vs Pirc, Vasja — 1/2-1/2 — Zagreb CRO

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