E02 — Catalan: Open, 5.Qa4+ Nbd7 6.Nf3 a6 7.Nc3

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Nf3 a6 7.Nc3 ● Trait aux Noirs

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 une majorité de pions à l'centre (2 contre 1), les cases fortes f4, e5 et g5, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Les fous enfermés en c8 et f8, 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 fou c1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Bg5 (Clouer Nf6) ; 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 une majorité de pions à l'aile_dame (4 contre 2), la case forte d5, un avant-poste en d5, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en c1 et g2 et le roi resté au centre.

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

Plans. ...Be7 (Développer Bf8) ; ...c6 (Rupture) ; ...c5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● c4, ● c7
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● b7→a6, f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 4v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v1), ● g5 (2v0)	● d5 (2v1)
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (2v1)	● d5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Clouages	—	● knight d7
Non développées	3 (● c1, ● a1, ● h1)	4 (● 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	● d4-d5, ● e2-e3	● …c7-c6, ● …c7-c5, ● …e6-e5

Partie
1937 Hastings3738 – Round 8 – Flohr, Salo – 1-0 – Fairhurst, William – G32 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nc3 c6 7. Qxc4 e5 8. Nf3 exd4 9. Qxd4 Bc5 10. Qd3 O-O
1937 Semmering/Baden – Round 12 – Petrov, Vladimir (ENG) – 1/2-1/2 – Fine, Reuben – G43 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Bd6 8. O-O O-O 9. Qxc4 b5 10. Qd3 Bb7
1937 Trebitsch mem3738 – Round 5 – Becker, Albert – 0-1 – Podhorzer, David – G19 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 Be7 7. O-O O-O 8. Qxc4 c5 9. dxc5 Nxc5 10. b4 Na4
1938 AVRO – Round 1 – Reshevsky, Samuel – 0-1 – Fine, Reuben – G10 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Be7 8. Ne5 Rb8 9. Qxc4 b5 10. Qb3 Nxe5
1938 It AVRO – Round 1 – Flohr, Salo – 1/2-1/2 – Euwe, Max – G2 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 Be7 8. dxc5 Bxc5 9. Nf3 O-O 10. O-O Nb6
1938 It AVRO – Round 12 – Flohr, Salo – 1/2-1/2 – Fine, Richard Alvaro Adrien – G10 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qc2 Nc6 9. Qd1 Bb4+ 10. Nc3 O-O
1938 Lodz – Round 1 – Petrov, Vladimir (ENG) – 0-1 – Pirc, Vasja – G60 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O Bd6
1938 Margate – Round 5 – Petrov, Vladimir (ENG) – 1-0 – Alekhine, Alexander – G25 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1938 Montevideo – Round 14 – Maderna, Carlos – 1/2-1/2 – Alekhine, Alexander – G72 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O Be7
1938 New York – Round 16 – Fine, Reuben – 1-0 – Dake, Arthur William – G11 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 c5 8. O-O Be7 9. dxc5 Bxc5 10. Qxc4 b5
1939 Buenos Aires ol f-A – Round 1 – Petrov, Vladimir (ENG) – 1/2-1/2 – Van Scheltinga, Theo – G4 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 cxd4 8. Bf4 Be7 9. Nd6+ Kf8 10. Nf3 Qb6
1939 Buenos Aires ol f-B – Round 4 – Tsvetkov, Alexandar K – 1-0 – O'Donovan, J. – G13 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Be4 9. Qe3 c5 10. dxc5 Qa5+
1939 Buenos Aires ol prel-B – Round 2 – Gonzalez Petrov, Daniel – 1/2-1/2 – Alekhine, Alexander – G8 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Nb6 9. Qd3 Bb4 10. O-O O-O
1939 Kemeri / Riga – Round 1 – Apscheneek, Fricis – 0-1 – Petrov, Vladimir S. – G13 1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. d4 dxc4 5. Bg2 Nbd7 6. Qa4 a6 7. Nf3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1939 Kemeri / Riga – Round 1 – Petrov, Vladimir S. – 1-0 – Solmanis, Zigfrids – G28 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Nbd7 9. Nc3 Bb4 10. O-O Bxc3
1939 Leningrad ch-URS – Round 4 – Panov, Vasily – 1/2-1/2 – Makogonov, Vladimir – G28 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qb3 Bb7 10. Bf4 Rc8
1939 Leningrad ch-URS – Round 8 – Tolush, Alexander – 1/2-1/2 – Makogonov, Vladimir – G62 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 Be7 8. dxc5 Bxc5 9. Nf3 O-O 10. O-O Nb6
1939 Leningrad/Moscow – Round 10 – Alatortsev, Vladimir N. – 1-0 – Goglidze, Viktor – G72 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. f3 Qd5 8. Qc3 Qb5 9. a3 Nbd7 10. e4 Nb6
1939 Rosario – Round 1 – Petrov, Vladimir (ENG) – 1-0 – Mikenas, Vladas – G5 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Nc6 9. Nc3 Nb4 10. Qd1 Bxf3
1939 Rosario – Round 1 – Petrov, Vladimir (ENG) – 1/2-1/2 – Eliskases, Erich – G4 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. Bf4 Bd6
1940 Moskou ch-URS – Round 1 – Petrov, Vladimirs – 1-0 – Kotov, Alexander. – G26 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Be4 9. Qd1 c5 10. Nc3 Bc6
1940 Moskou ch-URS – Round 1 – Petrov, Vladimirs – 1-0 – Makogonov, Vladimir – G24 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c6 7. Qxc4 Nb6 8. Qd3 c5 9. Ngf3 a6 10. O-O Be7
1940 Moskou ch-URS – Round 1 – Petrov, Vladimirs – 1/2-1/2 – Mikenas, Vladas – G27 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 cxd4 8. Bf4 Be7 9. Nd6+ Kf8 10. Nf3 Qb6
1941 Absolute Championship – Round 3 – Keres, Paul Petrovich – 1-0 – Bondarevsky, Igor – G7 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1941 New York – Round 1 – Fine, Reuben – 0-1 – Pinkus, Albert – G9 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Nc6 9. O-O Be4 10. Qd1 Be7
1942 Chocen – Round ? – Katetov, Miroslav – 1/2-1/2 – Richter, Emil – G16 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Bf4 b5 9. Qa5 Rb6 10. Ne5 Nxe5
1942 Chocen – Round ? – Keller, Rudolf – 0-1 – Florian, Jaromir – G17 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 a6 7. Nxc4 Rb8 8. Qc2 Bb4+ 9. Bd2 Qe7 10. Nf3 O-O
1942 Chocen – Round ? – Keller, Rudolf – 1-0 – Dobias, Josef – G13 1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 cxd4 8. Bf4 Be7 9. Nd6+ Kf8 10. Nf3 Qb6
1942 Duras 60 Memorial – Round 10 – Opocensky, Karel – 1-0 – Rejfir, Josef – G9 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 c6 7. Qxc4 Bd6 8. Bf4 Qc7 9. Bxd6 Qxd6 10. Nc3 O-O
1942 Duras 60 Memorial – Round 6 – Kottnauer, Cenek – 0-1 – Rejfir, Josef – G5 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Bg2 c6 7. Qxc4 Bd6 8. O-O O-O 9. Nc3 Qe7 10. Bg5 h6
1942 Munich – Round 1 – Alekhine, Alexander – 1-0 – Rabar Bakhtyar Hama Saleh – G6 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 c5 9. Nc3 Bc6 10. O-O Nbd7
1942 Munich – Round 10 – Alekhine, Alexander – 1-0 – Rabar, Braslav – G64 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 c5 9. Nc3 Bc6 10. O-O Nbd7
1942 Munich – Round 9 – Junge, Klaus – 0-1 – Alekhine, Alexander – G58 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Nb6 9. Qd3 Bb4 10. O-O O-O
1942 Sverdlovsk – Round 4 – Petrov, Vladimirs – 1-0 – Sokolsky, Alexey – G23 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 Be7 8. dxc5 Bxc5 9. Nf3 O-O 10. O-O Nb6
1943 Prague – Round 10 – Opocensky, Karel – 1-0 – Fichtl, Jiri – G81 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qc2 Nc6 9. Qa4 Bb4+ 10. Nc3 Ne4
1944 Moskou ch-URS – Round 1 – Ravinsky, Grigory – 0-1 – Smyslov, Vladimir – G32 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Be7 8. Nc3 O-O 9. O-O Nbd7 10. Bg5 h6
1944 URS Ch sf Moscow RUS – Round 14 – Kotov Lundqvist, Alex – 1/2-1/2 – Romanovsky, Pjotr – G16 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Be7 8. O-O O-O 9. Nc3 Nbd7 10. Qd3 Nd5
1945 Ljubljana Liberation – Round 1 – Preinfalk, Anton – 1/2-1/2 – Gligoric, Svetozar – G2 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nc3 a6 7. Qxc4 b5 8. Qd3 Rb8 9. Nf3 Bb7 10. O-O c5
1945 Moskou ch-URS – Round 1 – Bondarevsky, Igor – 1/2-1/2 – Goldberg, Grigory A – G39 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Nc3 dxc4 6. Qa4 a6 7. Nf3 Rb8 8. Qxc4 b5 9. Qb3 Bb7 10. Bf4 Rc8
1945 USSR ch sf – Round 13 – Poliak, Abram – 1/2-1/2 – Kan, Ilya A – G20 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. g3 Nbd7 5. Bg2 dxc4 6. Qa4 a6 7. Nf3 Be7 8. Qxc4 b5 9. Qd3 Bb7 10. O-O O-O
1946 Maastricht – Round 5 – Doerner, Charles – 1/2-1/2 – Van Scheltinga, Theo – G21 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. d4 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Nbd7 9. O-O c5 10. Be3 Bc6
1947 GBR Ch 34th – Round 1 – Golombek, Harry – 1/2-1/2 – Thomas, George Alan – G2 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Bb4+ 9. Bd2 Nc6 10. Bxb4 Nxb4
1947 GBR Ch 34th – Round 8 – Crown, Gordon – 0-1 – Golombek, Harry – G35 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O O-O 10. Qd3 a6
1947 Hanau – Round ? – Strazdins, Arkadij – 0-1 – Zemgalis, Elmars – G19 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 c5 7. O-O a6 8. Nc3 Be7 9. Rd1 O-O 10. dxc5 Bxc5
1947 Hilversum zt – Round 8 – Szabo, Ladislav – 1/2-1/2 – Castaldi, Vincenzo – G22 1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 c5 7. O-O a6 8. Nc3 cxd4 9. Nxd4 Qc7 10. Ndb5 Qb8
1947 Parnu – Round ? – Kasparian, Genrikh – 1-0 – Tolush, Alexander V – G72 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 Nbd7 6. Qa4 a6 7. Nc3 Be7 8. Qxc4 b5 9. Qd3 Bb7 10. O-O O-O
1947 Sverdlovsk – Round 1 – Furman, Slavomir – 1-0 – Koblencs, Alexander – G4 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Bc6 9. Qd1 e5 10. O-O exd4
1947 URS Ch, semi final – Round 9 – Zhukhovitsky, Samuel – 0-1 – Vasiljev, Aleksandr – G50 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1947 Vienna SCHLECHTER-mem – Round 7 – Muller, Hans – 0-1 – Szabo, Laszlo – G17 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1947 Yugoslavia Ch – Round 2 – Bozic, Aleksandar – 1/2-1/2 – Kulzinski, Nikolaj – G8 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Be7 8. Nc3 Nbd7 9. O-O O-O 10. Rd1 Qc8
1948 Bad Gastein – Round 1 – Lundin, Erik – 1-0 – Benko, Pal – G4 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Bd5 9. Qc3 Be4 10. Qe3 c5
1948 Budapest – Round 13 – Barcza, Gedeon – 1/2-1/2 – Szabo, Laszlo – G70 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 c5 9. Nc3 Bc6 10. O-O Nbd7
1948 Budapest – Round 3 – Gereben, Erno – 0-1 – Szabo, Laszlo – G16 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 c5 9. Nc3 Bc6 10. O-O Nbd7
1948 Budapest HUN – Round 1 – Gereben, Erno – 1/2-1/2 – Szabo, Ladislav – G2 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 c5 9. Nc3 Bc6 10. O-O Nbd7
1948 Mar del Plata – Round 5 – Denker, Arnold S – 1/2-1/2 – Stahlberg, Gideon – G42 1. c4 e6 2. d4 d5 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Bd6 9. Nc3 O-O 10. Rd1 Qe7
1948 Moskou ch-URS – Round 15 – Ilivitsky, Georgy A – 1-0 – Furman, Slavomir – G125 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Nb6 9. Qd3 Bb4 10. Bg5 h6
1949 Budapest-Moscow – Round 10 – Szabo, Ladislav – 0-1 – Ragozin, Viacheslav – G73 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Be7 8. Nc3 O-O 9. O-O Nbd7 10. Qd3 Nd5
1949 Leningrad – Round 13 – Taimanov, Mark E – 1/2-1/2 – Koblencs, Alexander – G93 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Bc6 9. Qd1 Nbd7 10. O-O h6
1949 Moscow RUS – Round 1 – Ravinsky, Grigory – 1/2-1/2 – Abramov, Lev – G2 1. d4 d5 2. c4 e6 3. g3 dxc4 4. Bg2 Nf6 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 c5 9. Nc3 cxd4 10. Nxd5 Qxd5
1949 Oldenburg – Round 17 – Heemsoth, Hermann – 0-1 – Bogoljubow, Efim – G69 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Be7 8. Qxc4 b5 9. Qd3 Bb7 10. O-O O-O
1949 Trencianske Teplice – Round 16 – Szabo, Ladislav – 1-0 – Golombek, Harry – G99 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Be4 9. Qd1 c5 10. Nc3 Bc6
1949 URS Ch, semi final – Round 1 – Moiseev, Oleg – 1-0 – Abramov, Leonid – G11 1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qc2 Nc6 9. Qa4 Bb4+ 10. Bd2 Bxd2+
1950 Hastings5051 – Round 5 – Barden, Leonard – 1/2-1/2 – Phillips, Alan – G21 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O O-O 10. Qd3 Rb8
1950 Mar del Plata – Round 14 – Marini, Liam – 1/2-1/2 – Eliskases, Erich – G118 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O Bd6
1950 Moskou ch-URS – Round 1 – Keres, Paul – 1/2-1/2 – Lipnitsky, Isaac – G9 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Nb6 9. Qd3 h6 10. Nbd2 a6
1950 Moskou ch-URS – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Averbakh, Yuri L – G5 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. d4 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O O-O 10. Rd1 Nb6
1950 Moskou ch-URS – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Keres, Paul – G32 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c6 7. Qxc4 e5 8. dxe5 Nxe5 9. Qc3 Bd6 10. Ngf3 Qe7
1950 Moskou ch-URS – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Konstantinopolsky, Alexander – G11 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Be4 9. Qd2 Nc6 10. O-O Bb4
1950 Stevenson Mem 2. / SCCU Ch – Round 6 – Napier, Ivan Robert – 0-1 – Aitken, James – G5 1. d4 Nf6 2. g3 d5 3. Bg2 e6 4. c4 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Nb6 9. Qd3 Bb4 10. O-O O-O
1950 URS Ch sf – Round 2 – Flohr, Salo – 0-1 – Bannik, Anatolij – G3 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1950 URS-ch18 – Round ? – Smyslov, Vasily – 1/2-1/2 – Averbakh, Yuri L – G2 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. d4 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O O-O 10. Rd1 Nb6
1950 Venice – Round 12 – Letelier Martner, Rene – 1/2-1/2 – Pachman, Ludek – G96 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Bxc6+ Nxc6 8. Nf3 Bd6 9. O-O O-O 10. Rd1 Qe7
1951 Budapest HUN – Round ? – Macskasy, Elod – 0-1 – Kapu, Jeno – G4 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nbd7 6. Qa4 a6 7. Ne5 c6 8. Nxd7 Bxd7 9. Qxc4 b5 10. Qd3 Rc8
1951 Chigorin Memorial – Round 1 – Smyslov, Vladimir – 1-0 – Taimanov, Mark E – G4 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Bc6 9. Qd1 Nbd7 10. O-O h6
1951 Moskou ch-URS – Round 1 – Moiseev, Oleg – 1/2-1/2 – Lipnitsky, Isaac – G41 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Nb6 9. Qd3 Be4 10. Qb3 Bd5
1951 New York ch-USA – Round 9 – Shainswit, George – 0-1 – Reshevsky, Samuel – G34 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Nc6 7. Nf3 Na5 8. Qd3 c5 9. dxc5 Bxc5 10. Ne5 O-O
1951 URS Ch sf – Round 13 – Shamkovich, Leonid – 1-0 – Zhukhovitsky, Samuel – G17 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nc3 a6 7. Qxc4 c5 8. e3 b5 9. Qe2 Rb8 10. a4 b4
1951 URS Ch sf – Round 2 – Krogius, Nikolai V – 0-1 – Ratner, Boris – G3 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Be4 9. Qd1 Bb4+ 10. Bd2 Qe7
1951 URS Ch sf – Round 5 – Prokhorovich, Taras E – 0-1 – Lipnitsky, Isaac – G7 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Nb6 9. Qd3 Bb4 10. O-O O-O
1951 USA-op52 – Round 11 – Hearst, Eliot – 1/2-1/2 – Evans, Larry M – G27 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 c5 8. dxc5 Bxc5 9. O-O b5 10. Nxb5 O-O
1951 Wertheim Memorial – Round 5 – Shainswit, George – 0-1 – O'Kelly de Galway, Alberic – G28 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1952 Budapest – Round 15 – Gereben, Erno – 1/2-1/2 – Stahlberg, Gideon – G132 1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 Be7 7. Ngf3 O-O 8. Qxc4 a6 9. O-O b5 10. Qc2 Bb7
1952 Buenos Aires – Round 6 – Foguelman, Alberto – 0-1 – Corte, Cesar J – G38 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Ne5 c5 8. Be3 Nd5 9. Nc3 b5 10. Qc2 Nxe5
1952 Havana – Round 1 – Gligorić, Svetozar – 1/2-1/2 – Eliskases, Erich – G11 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c6 7. Qxc4 e5 8. Ngf3 Nb6 9. Qd3 exd4 10. Nxd4 Bc5
1952 Havana – Round 17 – Jimenez Zerquera, Eleazar – 1-0 – Lasker, Edward – G130 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Nc6 7. Nf3 Na5 8. Qd3 c5 9. O-O Rc8 10. Nc3 Bc6
1952 Helsinki olm – Round 1 – Bolbochan, J. – 1/2-1/2 – Benkner, Otto – G46 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O O-O 10. Re1 Nb6
1952 Moscow RUS – Round 12 – Glotov, Vitaly – 1/2-1/2 – Estrin, Yakov – G9 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 cxd4 8. Bf4 Be7 9. Nd6+ Kf8 10. Nf3 Qb6
1952 Moskou ch-URS – Round 1 – Bronstein, David I – 1/2-1/2 – Smyslov, Vladimir – G40 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Qd7 9. Qxd7+ Nbxd7 10. O-O c5
1952 Saltsjobaden Interzonal – Round 11 – Eliskases, Erich – 1-0 – Golombek, Harry – G99 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 Be7 7. Qxc4 O-O 8. Ngf3 a6 9. Qc2 c5 10. O-O cxd4
1952 Saltsjobaden Interzonal – Round 9 – Eliskases, Erich – 1-0 – Prins, Laura – G80 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Nf3 dxc4 6. Qa4 Be7 7. Qxc4 O-O 8. O-O Rb8 9. Nc3 a6 10. a4 Nb6
1952 URS Ch sf Leningrad RUS – Round ? – Alatortsev, Vladimir N. – 1/2-1/2 – Byvshev, Vasily – G9 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c6 7. Qxc4 e5 8. Ngf3 Bd6 9. Qc2 O-O 10. dxe5 Nxe5
1953 Candidats Tournament – Round 28 – Taimanov, Mark E – 1/2-1/2 – Smyslov, Vladimir – G184 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Qd7 9. Qxd7+ Nbxd7 10. O-O c5
1953 Hastings Premier 1952/53 28th – Round 8 – Golombek, Harry – 1-0 – Lasker, Edward – G26 1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Nc6 7. Nf3 Na5 8. Qd3 c5 9. O-O Qb6 10. Nc3 Bc6
1953 Opatija IT – Round 16 – Ivkov, Borislav – 1/2-1/2 – Matanovic, Aleksandar – G15 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Nb6 9. Qc2 Be4 10. Qd1 c5
1954 Belgrade – Round 3 – Barcza, Gedeon – 1/2-1/2 – Gligorić, Svetozar – G40 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. d4 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Nb6 9. Qd3 Bb4 10. O-O O-O
1954 British Under 21 Championship – Round 2 – Gardner, Kenneth Leslie – 1/2-1/2 – Cafferty, Bernard – G2 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Be4 9. Qd1 c5 10. Nc3 Bc6
1954 Gorki ch22-SU sf – Round 17 – Polugaevsky, Lev – 0-1 – Hasin Raihan, Abir – G47 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qc2 Be4 9. Qa4+ Qd7 10. Qd1 c5
1954 Hungary Ch – Round 1 – Forintos, Gyozo V – 1/2-1/2 – Barcza, Gedeon – G18 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qc2 Nc6 9. Be3 Be4 10. Qa4 Bb4+
1954 Munich zt – Round 9 – Bouwmeester, Hans – 1-0 – Jacob, Franz – G55 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. f3 Be7 8. e4 Nbd7 9. Ne2 a6 10. Nbc3 O-O
1954 Olympiad final A – Round 1 – Golombek, Harry – 1/2-1/2 – Gudmundsson, Gardar Vidir – G16 1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O Ne4 10. Ne5 Nxc3
1954 Olympiad prel IV – Round 1 – Golombek, Harry – 1/2-1/2 – Gobert, Jozef – G7 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Bc6 9. Qc2 Be4 10. Qd1 c5
1955 Aberystwyth ch-BCF – Round 10 – Golombek, Harry – 1-0 – Aitken, James – G45 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O O-O 10. Qd3 Nd5
1955 Aberystwyth ch-BCF – Round 4 – Golombek, Harry – 1-0 – Milner Barry, Philip – G17 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Nb6 9. Qd3 Nbd5 10. O-O Nxc3
1955 Hoechst ch-GER – Round 1 – Mross, Paul – 1/2-1/2 – Wolk, Sigmund – G10 1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. d4 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nf3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. Bg5 h6
1955 Ljubljana – Round 17 – Bertok, Mario Jr. – 1/2-1/2 – Padevsky, Nikola – G145 1. d4 d5 2. c4 e6 3. g3 dxc4 4. Bg2 Nf6 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Be4 9. Qd1 c5 10. Nc3 Bc6
1955 Ljubljana – Round 4 – Krivec Slavko – 0-1 – Vidmar, Milan Jr – G28 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. d4 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. Bf4 Bd6
1955 URS Ch sf – Round 1 – Geller, Efim P – 1/2-1/2 – Byvshev, Vasily – G15 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 c6 7. Qxc4 Bd6 8. O-O O-O 9. Nbd2 e5 10. Qc2 exd4
1956 Leningrad ch-URS – Round 1 – Khasin, Abram – 1/2-1/2 – Bannik, Anatolij – G39 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qc2 Be4 9. Qa4+ Qd7 10. Qxd7+ Nbxd7
1956 Moscow olm fin-B – Round 11 – Sanchez Alpizar, Luis Alberto – 1-0 – Johannsson, Ingi R – G121 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qc2 c5 9. Nc3 Bc6 10. dxc5 Bxc5
1957 FRG Ch – Round 1 – de Jager, Andreas – 0-1 – Darga, Klaus – G1 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O Be7
1957 URS Ch sf – Round 18 – Antoshin, Vladimir S – 1/2-1/2 – Poliak, Abram – G16 1. c4 e6 2. d4 d5 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 Nbd7 6. Qa4 Be7 7. O-O O-O 8. Qxc4 a6 9. Qc2 Rb8 10. Nbd2 b6
1959 Lima – Round 2 – Pachman, Ludek – 1-0 – Quinones Carrillo, Oscar – G11 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Nb6 9. Qd3 h6 10. Rd1 Be4
1959 Marianske Lazne – Round 5 – Szabo, Laszlo – 1/2-1/2 – Fichtl, Jiri – G32 1. c4 e6 2. d4 d5 3. Nf3 Nf6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Ne5 Rb8 8. Nxd7 Bxd7 9. Qxc4 Bb5 10. Qc3 Nd5
1960 Buenos Aires – Round 4 – Kortchnoi, V. – 1-0 – Olafsson, Frimann Galdur – G49 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 a6 7. Nxc4 b5 8. Qc2 Nd5 9. Ne3 Bb4+ 10. Kf1 N7f6
1960 Leipzig olm fin-A – Round 6 – Fuchs, Reinhart – 1-0 – Wade, Robert G – G97 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c6 7. Qxc4 e5 8. Ngf3 Nb6 9. Qd3 exd4 10. Nxd4 Bc5
1960 Leipzig olm fin-A – Round 7 – Bertok, Mario Jr. – 0-1 – Hort, Vlastimil – G114 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ Nbd7 5. g3 e6 6. Bg2 c6 7. Qxc4 Bd6 8. Nc3 e5 9. O-O O-O 10. Rd1 Qe7
1960 UKR Ch – Round 9 – Ousatchi, Mark – 1/2-1/2 – Poliak, Evsey – G52 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qd3 Be4 9. Qb3 c5 10. Nc3 Bc6
1961 Corr FS – Round 1 – De Lange, Daan – 1/2-1/2 – Borisenko, Georgy K – G4 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Bc6 9. Qb3 Nbd7 10. Nc3 a5
1962 Lasker Memorial Berlin-Ost – Round 9 – Minev, Nikolay N – 0-1 – O'Kelly de Galway, Alberic – G39 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 a6 8. Bf4 b5 9. Qd1 Nd5 10. Nd6+ Bxd6
1962 Varna olm – Round 3 – Robatsch, Karl – 1/2-1/2 – Unzicker, Wolfgang – G105 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nf3 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1962 Varna olm – Round 5 – Purevzhav, S – 1-0 – Porath, Yosef – G216 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Nb6 9. Qc2 Be4 10. Qd1 c5
1963 Kiev Ch – Round 10 – Gerber, Vladimir – 0-1 – Zurakhov, Vladlen Y – G37 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nc3 c5 7. Bf4 a6 8. d5 exd5 9. Nb5 axb5 10. Qxa8 Be7
1963 P.C.C. A-P-A A8 – Round ? – Collins, Richard Arnold – 1-0 – Garland, P. – G10 1. g3 d5 2. Bg2 Nf6 3. c4 e6 4. d4 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Nbd7 9. Nc3 Bc6 10. Qc2 Be7
1963 Piatigorsky Cup – Round 13 – Petrosian, Tigran V – 1-0 – Panno, Oscar – G30 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qb3 Bb7 10. O-O c5
1963 Stevenson Memorial 11th – Round 3 – Collins, Richard Arnold – 1/2-1/2 – Basman, Michael John – G5 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. d4 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O O-O 10. a3 Ne4
1964 EU Ch U20 Niemeyer 3rd – Round 1 – Kolbak, Jens – 1-0 – Hoelzl, Franz – G2 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 Be7 7. O-O O-O 8. Qxc4 a6 9. Rd1 b5 10. Qc2 Bb7
1964 Tel Aviv olm prel – Round 3 – Reilly, Brian Patrick – 0-1 – Boutteville, Cesar – G89 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Nbd7 9. Nc3 Bc6 10. Qc2 Bb4
1964 Tel Aviv olm prel – Round 4 – Reilly, Brian – 1/2-1/2 – Aitken, James – G130 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Be7 9. O-O O-O 10. Rd1 Nd5
1965 Capablanca Memorial – Round 17 – Smyslov, Vladimir – 1/2-1/2 – Robatsch, Karl – G169 1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c6 7. Qxc4 e5 8. dxe5 Nxe5 9. Qc3 Bd6 10. f4 Ng6
1966 Rio Hondo zt – Round 4 – Bolbochan, J. – 1-0 – Emma, Jaime – G6 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
1967 October Revolution 50 – Round ? – Barcza, Gedeon – 1-0 – Jimenez Zerquera, Eleazar – G120 1. Nf3 d5 2. c4 Nf6 3. d4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Be7 8. Ne5 O-O 9. Nxd7 Nxd7 10. Qxc4 c5
1967 URS Team Ch – Round 1 – Kapengut, Albert – 1-0 – Shmit, Anatoly – G48 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 dxc4 5. Bg2 Nbd7 6. Qa4 Bd6 7. Nbd2 O-O 8. Nxc4 Be7 9. O-O c6 10. Qc2 Nb6
1968 Bristol ch-BCF – Round 2 – Hollis, Adrian – 1/2-1/2 – Brigden, Cai – G33 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 Be7 7. O-O a6 8. Qxc4 c5 9. dxc5 Nxc5 10. b4 Nce4
1969 Icelandic Chess Cham – Round 11 – Olafsson, Fridrik – 1/2-1/2 – Thorbergsson, Freysteinn – G13 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c5 7. Nxc4 Be7 8. dxc5 Bxc5 9. Nf3 O-O 10. O-O Rb8
1969 Vidmar Memorial – Round 7 – Barcza, Gedeon – 1/2-1/2 – Unzicker, Wolfgang – G25 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Rb8 8. Qxc4 b5 9. Qd3 Bb7 10. O-O c5
Johannesburg 1981 – Round 2 – Andersson, Ulf 1949 – 1/2-1/2 – Huebner, Robert – G12 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. Qa4+ Nbd7 5. g3 a6 6. Nc3 e6 7. Bg2 Be7 8. Ne5 Rb8 9. Nxd7 Qxd7 10. Qxc4 b5

E02 — Nbd7 6.Nf3 a6 7.Nc3 - Open, 5.Qa4+ Nbd7 6.Nf3 a6 7.Nc3

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Nf3 a6 7.Nc3

Eval: [+0.01]

Les coups candidats

7…Rb8 — 53.7% (283 parties)

Ambassadeurs : Andersson, Ulf (18x), Krivonosov, Oleg (8x), Sveshnikov, Evgeny (7x), Petrov, Vladimir (ENG) (3x), Bondarevsky, Igor (3x), Eliskases, Erich (3x), Tal, Mikhail (3x), Nogueiras Santiago, Jesus (3x)

7…Be7 — 34.3% (181 parties)

Ambassadeurs : Andersson, Ulf (7x), Korneev, Oleg (4x), Barcza, Gedeon (3x), Huebner, Robert (3x), Xu, Jun (3x), Agdestein, Simen (2x), Bany, Jerzy (2x), Kishnev, Sergey (2x)

7…c5 — 11.0% (58 parties)

Ambassadeurs : Burmakin, Vladimir (3x), Barkhagen, Jonas (2x), Fine, Reuben (1x), Dake, Arthur William (1x), Hearst, Eliot (1x), Evans, Larry (1x), Zagorovsky, Mikhail Pavlovich (1x), Brglez, Frantisek (1x)

7…Bd6 — 0.8% (4 parties)

Ambassadeurs : Petrov, Vladimir (ENG) (1x), Fine, Reuben (1x), Diez Gonzalez, Pedro Maria (1x), Soto Palomo, Cecilio (1x), Krivonosov, Oleg (1x), Bernotas, Arturs (1x), Berdnyk, Mariia (1x), Romanchuk, Viktor (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…Rb8	7…Be7	7…c5	7…Bd6
<1800	4	25%	25%	50%	—
1800-2200	81	49%	35%	15%	1%
2200-2600	332	53%	36%	10%	1%
2600+	33	67%	33%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7…Rb8	7…Be7	7…c5	7…Bd6
1930s	12	50%	33%	8%	8%
1940s	19	63%	37%	—	—
1950s	8	75%	12%	12%	—
1960s	8	75%	25%	—	—
1970s	11	73%	9%	18%	—
1980s	57	63%	25%	12%	—
1990s	60	48%	37%	15%	—
2000s	123	48%	37%	14%	1%
2010s	152	53%	38%	7%	1%
2020s	77	52%	34%	13%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…Rb8	53%	52%	▼ -1.3%
7…Be7	38%	34%	▼ -4.4%
7…c5	7%	13%	▲ +5.8%
7…Bd6	1%	1%	▲ +0.6%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 4 parties
Kasparov, Garry — 3 parties
Alekhine, Alexander — 2 parties
Karpov, Anatoly — 2 parties
Euwe, Max — 1 partie
Karpov, Aleksandr — 1 partie
Gukesh D — 1 partie

Parties historiques

7…Rb8 — 53.7% (283 parties)

1938 — Petrov, Vladimir (ENG) vs Alekhine, Alexander — 1-0 — Margate ENG
1938 — Maderna, Carlos vs Alekhine, Alexander — 1/2-1/2 — Montevideo URU
1938 — Petrov, Vladimir (ENG) vs Pirc, Vasja — 0-1 — Lodz POL
1939 — Apscheneek, Fricis vs Petrov, Vladimir S. — 0-1 — Kemeri / Riga
1939 — Petrov, Vladimir (ENG) vs Eliskases, Erich — 1/2-1/2 — Rosario ARG

7…Be7 — 34.3% (181 parties)

1937 — Koshnitsky, Gregory vs Purdy, Cecil J S — 1/2-1/2 — corr Australia
1938 — Reshevsky, Samuel vs Fine, Reuben — 0-1 — Nederland
1938 — Adrianus Dingeman de Groot vs Euwe, Max — 0-1 — Amsterdam NED
1939 — Landau, Salo vs Van den Bosch, Johannes — 1/2-1/2 — Amsterdam_Hilversum
1943 — Barcza, Gedeon vs Szily — 1-0 — Hungarian CC Jubilee

7…c5 — 11.0% (58 parties)

1938 — Fine, Reuben vs Dake, Arthur William — 1-0 — New York, NY USA
1951 — Hearst, Eliot vs Evans, Larry — 1/2-1/2 — Forth Worth
1972 — Zagorovsky, Mikhail Pavlovich vs Brglez, Frantisek — 1/2-1/2 — corr Wch7
1978 — Rasmussen, Lars Garne vs Lombard, Andre — 0-1 — Mitropa Cup
1981 — Rantanen, Veikko vs Kolu, Antti — 0-1 — corr NS/I

7…Bd6 — 0.8% (4 parties)

1937 — Petrov, Vladimir (ENG) vs Fine, Reuben — 1/2-1/2 — Semmering AUT
2009 — Diez Gonzalez, Pedro Maria vs Soto Palomo, Cecilio — 1-0 — ICCF
2012 — Krivonosov, Oleg vs Bernotas, Arturs — 1/2-1/2 — Riga LAT
2021 — Berdnyk, Mariia vs Romanchuk, Viktor — 1-0 — Cherkasy UKR

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