D93d — Gruenfeld: 5.Bf4 O-O 6.e3 c6 7.Qb3

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3 c6 7.Qb3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte e5….

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

Côté adverse. Les fous enfermés en g7 et c8.

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

Plans. Bd3 (Développer Bf1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e4….

Atouts. Les Noirs s'appuient sur les cases fortes e4, g4 et f5, des avant-postes en e4 et f5 et la paire de fous.

Côté adverse. Le fou enfermé en f1 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...Nbd7 (Développer Nb8) ; ...Bg4 (Développer Bc8, clouer Nf3) ; ...c5 (Rupture) ; ...e6 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● c6→d5, b7→c6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (3v0), ● g5 (2v0)	● e4 (2v1), ● g4 (2v0), ● f5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (3v0)	● d5 (3v2), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 2)
Bf4	● Bf4 Actif (mob. 7)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● f1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● e3-e4	● …c6-c5, ● …e7-e6, ● …e7-e5

Partie
1912 It (Men) Bad Pistyan CZE – Round 1 – Leonhardt, Paul – 1-0 – Cohn, Erich – G1 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4
1930 Hastings 3031 – Round 5 – Euwe, Max – 1-0 – Tylor, Theodore Henry – G8 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 a5 8. Ne5 e6 9. Be2 Nbd7 10. c5 Nxe5
1934 Leningrad ch-URS – Round 1 – Alatortsev, Vladimir N. – 1-0 – Freiman, Sergey Nikolaevich – G87 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 e6 8. h3 Nbd7 9. cxd5 exd5 10. Be2 Re8
1934 Leningrad ch-URS – Round 1 – Veresov, Gavriil – 0-1 – Alatortsev, Vladimir N. – G86 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Nd2 Nbd7 9. Be2 Re8 10. O-O e6
1935 Moskou – Round 7 – Lisitsin, Georgy – 1/2-1/2 – Romanovsky, Pjotr – G45 1. Nf3 Nf6 2. c4 g6 3. d4 d5 4. Nc3 Bg7 5. Bf4 O-O 6. e3 c6 7. Qb3 Qa5 8. Nd2 Nbd7 9. Be2 Re8 10. cxd5 Nxd5
1935 Warszawa ol – Round 12 – Solin, Ilmari – 1/2-1/2 – Alexander, Conol Hugh – G11 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 c6 6. e3 O-O 7. Qb3 e6 8. Rd1 Qe7 9. h3 Nbd7 10. Bd3 Nh5
1936 Hastings3637 – Round 1 – Vidmar, Marjeta – 1-0 – Koltanowski, George – G4 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 h6 8. Bd3 dxc4 9. Bxc4 b5 10. Be2 Be6
1936 Munich ol (Men) – Round 12 – Moller, Baldur Helgi – 1/2-1/2 – Havasi, Kornel – G31 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Qb3 O-O 7. Nf3 b6 8. cxd5 cxd5 9. Bd3 Bb7 10. O-O Nc6
1936 Olympiad (unofficial) – Round 19 – De Groot, Adriaan – 0-1 – Richter, Emil – G125 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qa5 8. Be2 dxc4 9. Qxc4 b5 10. b4 Qd8
1936 Trade Unions – Round 1 – Rudakovsky, Iosif – 1/2-1/2 – Yudovich, Mikhail M – G12 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 e6 8. Be2 Qe7 9. Ne5 Nfd7 10. O-O dxc4
1936 Trebitsch mem19 – Round 3 – Rubinstein, Simon – 1-0 – Lokvenc, Josef – G10 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 c6 5. Nf3 Bg7 6. Bf4 O-O 7. e3 e6 8. h3 b6 9. Be2 Bb7 10. O-O Re8
1936 Zandvoort – Round 1 – Bogoljubow, Efim – 1-0 – Prins, Lodewijk – G8 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 c6 6. e3 O-O 7. Qb3 dxc4 8. Bxc4 b5 9. Be2 a6 10. O-O Nbd7
1937 Semmering/Baden – Round 10 – Fine, Reuben – 1/2-1/2 – Keres, Paul – G36 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1937 Semmering/Baden – Round 6 – Capablanca, Jose – 1-0 – Flohr, Salo – G21 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1937 Stockholm – Round 18 – Gudmundsson, Jon Jorundur – 0-1 – Fine, Reuben – G11 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 c6 6. e3 O-O 7. Qb3 Qa5 8. Bd3 dxc4 9. Bxc4 c5 10. O-O cxd4
1937 Stockholm ol – Round 7 – Euwe, Max – 1-0 – Mikenas, Vladas – G44 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 dxc4 8. Bxc4 b5 9. Be2 Be6 10. Qc2 b4
1938 Krefeld – Round 1 – Elsas, Hansgeorg – 1/2-1/2 – Schlage, Willi – G17 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 c6 5. Nf3 Bg7 6. Bf4 O-O 7. e3 b6 8. cxd5 Nxd5 9. Nxd5 cxd5 10. Rc1 Bb7
1938 Trade Unions – Round 20 – Kotov Lundqvist, Alex – 1/2-1/2 – Gothilf, Solomon Borisovich – G160 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 e6 8. Be2 b6 9. a4 Nbd7 10. O-O Ba6
1938 Trade Unions – Round 4 – Kopaev, Nikolay A – 1-0 – Kotov Lundqvist, Alex – G41 1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qa5 8. Be2 dxc4 9. Bxc4 b5 10. Be2 Be6
1938 USA Ch – Round 10 – Fine, Reuben – 1-0 – Morton, Harold – G29 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 b6 8. Be2 Bb7 9. O-O e6 10. Rfd1 Re8
1939 Amsterdam KNSB – Round 5 – Euwe, Max – 1-0 – Flohr, Salo – G11 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. Ne5 Qe8 10. Be2 Nxe5
1939 Buenos Aires ol f-A – Round 9 – da Silva Rocha, Adhemar – 1/2-1/2 – Gromer, Aristide – G175 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Nf3 O-O 7. Qb3 e6 8. h3 dxc4 9. Bxc4 Nd5 10. Bh2 Nd7
1939 Kemeri / Riga – Round ? – Koblencs, Alexander – 0-1 – Flohr, Salo – G85 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 Qa5 8. Nd2 Ne4 9. Ncxe4 dxe4 10. O-O-O Bg4
1939 Kemeri / Riga – Round 1 – Bezruchko, Georgs – 0-1 – Mikenas, Vladas – G35 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Bf4 O-O 6. Qb3 c6 7. e3 Qa5 8. Be2 dxc4 9. Bxc4 b5 10. Be2 Be6
1940 New York ch-USA – Round 14 – Reshevsky, Samuel – 1-0 – Pinkus, Albert – G80 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Qb3 c6 6. e3 O-O 7. Nf3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1941 Munchen – Round 4 – Bogoljubow, Efim – 1/2-1/2 – Foltys, Jan – G39 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 dxc4 8. Bxc4 Nbd7 9. Ne5 Nxe5 10. Bxe5 Qb6
1942 New York – Round 10 – Reshevsky, Samuel – 1-0 – Baker, Haris – G13 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1942 Ventnor City – Round 6 – Shainswit, George – 1-0 – Aubry Levy, Leonard – G22 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. Qb3 c6 7. e3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1942 Ventnor City – Round 8 – Bernstein, Sidney – 1/2-1/2 – Pinkus, Albert – G26 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 dxc4 8. Bxc4 Nbd7 9. Ng5 Qe8 10. Bc7 b5
1942 Verenigde Staten m ch-USA – Round 10 – Kashdan, Isaac – 0-1 – Reshevsky, Samuel – G10 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1942 Verenigde Staten m ch-USA – Round 9 – Reshevsky, Samuel – 1/2-1/2 – Kashdan, Isaac – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 c6 5. Nf3 Bg7 6. Bf4 O-O 7. e3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1943 Mar del Plata – Round 13 – Stahlberg, Gideon – 1-0 – Fenoglio, Virgilio – G90 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 e6 8. Bd3 Nh5 9. Be5 f5 10. Bxg7 Nxg7
1944 45. US Open – Round 3 – Marcel Barzin – 0-1 – Reshevsky, Samuel – G3 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. Ne5 Qe8 10. O-O Nb6
1944 Moskou ch-URS – Round 1 – Kotov Lundqvist, Alex – 1-0 – Ragozin, Viacheslav – G10 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qa5 8. Be2 Na6 9. O-O dxc4 10. Bxc4 b5
1945 AUS Ch – Round 3.1 – Steiner, Lajos – 1-0 – Koshnitsky, Gregory – G2 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 c6 5. Bf4 Bg7 6. Nf3 O-O 7. e3 dxc4 8. Bxc4 Nbd7 9. e4 Nb6 10. Be2 Be6
1945 Mar del Plata – Round 11 – Stahlberg, Gideon – 1-0 – Bolbochan, J. – G31 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 e6 8. Be2 Nbd7 9. O-O b6 10. Rac1 Bb7
1945 USA-URS radio-m – Round 2 – Kotov Lundqvist, Alex – 1-0 – Kashdan, Isaac – G12 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1946 New York ch-USA – Round 1 – Drexel, Gustave – 0-1 – Reshevsky, Samuel – G18 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Bf4 c6 6. e3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. Ng5 e6 10. Bxe6 fxe6
1946 Ostrawa ch CZE – Round 11 – Podgorny, Jiri – 1-0 – Zita, Frantisek – G17 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 e6 8. Be2 Nbd7 9. O-O Qb6 10. Qc2 Re8
1946 Pittsburgh – Round 1 – Kupchik, Abraham – 1/2-1/2 – Seidman, Herbert – G10 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Qb3 c6 6. Bf4 O-O 7. e3 e6 8. Rc1 Nbd7 9. h3 Re8 10. Be2 dxc4
1946 Pittsburgh Open – Round 1 – Jirov Katz, Maayan – 1/2-1/2 – Byrne, David – G30 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1947 Aalborg – Round 9 – Van Scheltinga, Theo – 1/2-1/2 – Stoltz, Gosta – G28 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. Ne5 Qe8 10. O-O Nb6
1947 Buenos Aires ch-ARG – Round 1 – Alvarez Martin, Pedro – 1/2-1/2 – Beretta, Alberto Luigi – G35 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Be6
1947 Chigorin Memorial – Round 1 – Kotov Lundqvist, Alex – 1-0 – Novotelnov, Nikolai – G35 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4
1947 Mar del Plata – Round 7 – Pizzi Possi, Tulio – 0-1 – Stahlberg, Gideon – G64 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 dxc4 8. Bxc4 b5 9. Be2 Be6 10. Qc2 h6
1948 FIDE (19) -1951 – Round 1 – Gligorić, Svetozar – 1/2-1/2 – Boleslavsky, Isaac – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Ne5 Nh5 9. cxd5 Nxf4 10. exf4 cxd5
1948 Saltsjobaden Interzonal – Round 17 – Gligorić, Svetozar – 1/2-1/2 – Boleslavsky, Isaac – G154 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Ne5 Nh5 9. cxd5 Nxf4 10. exf4 cxd5
1948 South Fallsburg ch-USA – Round 1 – Heitner, I. – 0-1 – Santasiere, Anthony – G47 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Nd2 Nbd7 9. Be2 Re8 10. O-O e5
1949 BUL-CSR Sofia BUL – Round 2 – Sajtar, Jaroslav – 1/2-1/2 – Neikirkh, Oleg – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Bd3 dxc4 9. Bxc4 b5 10. Bd3 Be6
1949 CSR-NED Prague CZE – Round 2 – Muehring – 1/2-1/2 – Sajtar, Jaroslav – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Nd2 Ne4 9. Ndxe4 dxe4 10. Be2 e5
1949 HUN-NLD – Round ? – Muhring, Willem Jan – 1/2-1/2 – Gereben, Erno – G5 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Be2 dxc4 9. Bxc4 b5 10. Be2 Be6
1949 Zagreb ch YUG – Round 6 – Simonovic, Borko – 1/2-1/2 – Rabar, Braslav – G11 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4
1950 Dubrovnik YUG – Round 6 – Helle, Soini – 1/2-1/2 – Kramer, George – G7 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. Ne5 Nxe5 10. Bxe5 Nd7
1950 HUN-ch06 – Round 1 – Florian, Tibor – 1-0 – Barcza, Gedeon – G28 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 b5 9. Be2 a5 10. a3 Nbd7
1950 It Beverwijk NED – Round 7 – Euwe, Max – 1/2-1/2 – Cortlever, Nico – G8 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. Ne5 Nxe5 10. Bxe5 Nd7
1951 Augsburg – Round 12 – Kieninger, Georg – 1/2-1/2 – Heinicke, Herbert – G44 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 Nbd7 9. Ng5 Qe8 10. Bc7 b5
1951 BCF Ch 38th – Round 8.1 – Barden, Leonard – 1-0 – Klein, Ernst – G29 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Nf3 O-O 7. Qb3 Qa5 8. Ne5 b6 9. Be2 Ba6 10. O-O Rc8
1951 Budapest HUN – Round ? – Szilagyi, Gyorgy Laszlo – 1-0 – Csovari, Z – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Nf3 O-O 7. Qb3 Qb6 8. cxd5 cxd5 9. Qxb6 axb6 10. Be2 Bf5
1951 Hungary Ch – Round 1 – Füster, Géza – 1-0 – Szabadi, Elemer – G12 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 b5 9. Be2 a5 10. O-O Na6
1951 Sopot – Round 8 – Sliwa, Bogdan – 1-0 – Ciejka, Tadeusz – G45 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 e6 8. Be2 b6 9. O-O Qe7 10. Rac1 Bb7
1951 YUG Ch 6th – Round 10 – Karaklajic, Nikola – 1/2-1/2 – Nedeljkovic, Srecko M – G54 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. Nf3 Bg7 6. e3 O-O 7. Qb3 e6 8. Be2 b6 9. O-O Bb7 10. Ne5 Nbd7
1952 ITA-ch15 – Round 7 – Fletzer, Gino – 0-1 – Castaldi, Vincenzo – G33 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qa5 8. Ne5 b6 9. cxd5 Nxd5 10. Nxc6 Nxc6
1952 POL-ch10 – Round 3 – Gadalinski, Jan – 1/2-1/2 – Makarczyk, Kazimierz – G17 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qb6 8. cxd5 Nxd5 9. Nxd5 cxd5 10. Qxb6 axb6
1952 Saltsjobaden Interzonal – Round 7 – Geller, Efim P – 1-0 – Pilnik, Herman – G59 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Nbd7 8. cxd5 Nxd5 9. Nxd5 cxd5 10. Qxd5 e5
1953 Budapest ch-HUN – Round 16 – Gereben, Erno – 0-1 – Navarovszky, Laszlo – G36 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Nd2 Ne4 9. Ndxe4 dxe4 10. Be2 e5
1953 FRG Ch 02nd – Round 7 – Lehmann, Heinz – 0-1 – Pfeiffer, Gerhard – G13 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 e6 8. Be2 Nbd7 9. O-O Re8 10. Rfd1 h6
1953 HUN Ch Budapest HUN – Round 1 – Navarovszky, Laszlo – 1-0 – Florian, Tibor – G22 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 dxc4 8. Bxc4 Nbd7 9. O-O Nh5 10. Ne5 Nxe5
1953 Opatija – Round 1 – Rabar, Braslav – 1-0 – Milic, Borislav – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Nd2 Na6 9. Be2 Ne4 10. cxd5 Nxd2
1954 DDR Ch 05th – Round 12 – Uhlmann, Wolfgang – 1-0 – Troschier, Kurt – G64 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 Qa5 8. Ne5 Nbd7 9. Nxd7 Nxd7 10. cxd5 c5
1954 DDR Ch 05th – Round 3 – Uhlmann, Wolfgang – 1/2-1/2 – Fuchs, Reinhart – G15 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 Qa5 8. Bd3 Nbd7 9. O-O dxc4 10. Bxc4 Nb6
1954 Hastings5455 – Round 4 – Fairhurst, William – 0-1 – Pachman, Ludek – G15 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Be2 dxc4 9. Bxc4 b5 10. Bd3 Be6
1954 Kiev ch-URS – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Bivshev, Vasily – G86 1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 e6 8. Bd3 Nbd7 9. O-O Re8 10. h3 dxc4
1954 Munich zt Munich GER – Round 4 – Lehmann, Karl-Heinz – 1/2-1/2 – Dunkelblum, Arthur – G4 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 e6 8. Bd3 Qe7 9. O-O Nbd7 10. Rfe1 a6
1954 POL Ch Lodz POL – Round 1 – Sliwa, Bogdan – 1-0 – Plater, Kazimierz – G6 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Be2 Ne4 9. O-O Nxc3 10. bxc3 dxc4
1954 Prague zt – Round 11 – Minev, Nikolay N – 1-0 – Hodja, Bujan – G59 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 b6 8. Rc1 e6 9. Be2 h6 10. h3 Bb7
1954 Prague zt – Round 18 – Kluger, Gyula – 1/2-1/2 – Filip, Marius Liviu – G102 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Ne5 Nh5 9. cxd5 Nxf4 10. exf4 cxd5
1954 UKR Ch – Round ? – Lazarev, Efim M. – 0-1 – Matskevich, Avshalom – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Ne4 8. Nxe4 dxe4 9. Nd2 f5 10. c5+ Kh8
1955 Buenos Aires CA – Round 3 – Reinhardt, Enrique – 0-1 – Pachman, Ludek – G27 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Ne5 Nh5 9. cxd5 Nxf4 10. exf4 cxd5
1955 Ljubljana – Round 10 – Kieninger, Georg – 1/2-1/2 – Gabrovsek Zdravko – G85 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Ne5 Nbd7 9. Be2 Nxe5 10. Bxe5 dxc4
1955 Ljubljana – Round 6 – Bertok, Mario Jr. – 1/2-1/2 – Gabrovsek Zdravko – G47 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Ne5 Nbd7 9. Nxd7 Bxd7 10. Qxb7 Rac8
1956 Marianske Lazne/Praha – Round 11 – Wade, Robert G – 1/2-1/2 – Filip, Miroslav – G73 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Nd2 Ne4 9. Ndxe4 dxe4 10. Be2 e5
1956 Moscow olm prel – Round 6 – Keller, Dieter – 1-0 – Reissman, Paul – G192 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 a6 8. Rc1 dxc4 9. Bxc4 b5 10. Be2 Nbd7
1956 URS Ch sf – Round ? – Borisenko, Georgy K – 1-0 – Shamkovich, Leonid – G47 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Nd2 Nbd7 9. Be2 a6 10. O-O b5
1957 It Gotha GER – Round 15 – Bronstein, David I – 1/2-1/2 – Uhlmann, Wolfgang – G43 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bf4 O-O 5. e3 c6 6. Nf3 d5 7. Qb3 Qa5 8. Nd2 Ne4 9. Ncxe4 dxe4 10. c5 e5
1957 Reggio Emilia ch ITA – Round 7 – Tamburini, Mario – 1-0 – Nestler, Vincenzo – G27 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 c6 6. e3 O-O 7. Qb3 Qa5 8. Bd3 Nbd7 9. O-O dxc4 10. Bxc4 Nb6
1957 Reykjavik – Round 1 – Navarovszky, Laszlo – 1-0 – Sehlstedt – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Rc1 dxc4 9. Bxc4 b5 10. Bxf7+ Rxf7
1957 Sofia zt – Round 1 – Niemela, Ilmari Aarne – 0-1 – Filip, Marius Liviu – G8 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Nd2 Ne4 9. cxd5 Nxc3 10. bxc3 cxd5
1957 WchT U26 04th – Round 3.3 – Navarovszky, Laszlo – 1-0 – Sehlstedt – G32 1. c4 Nf6 2. d4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Rc1 dxc4 9. Bxc4 b5 10. Bxf7+ Rxf7
1957 WchT U26 04th – Round 4.1 – Dittmann, Sieghart – 1/2-1/2 – Filip, Miroslav – G41 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Nd2 Ne4 9. Ndxe4 dxe4 10. Be2 e5
1957 WchT U26 04th – Round 4.1 – Lombardy, William J – 1/2-1/2 – Munoz Parraguez, Cesar – G42 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 b6 8. h3 Ba6 9. Be2 dxc4 10. Bxc4 Bxc4
1958 HUN Ch 13th – Round 13 – Gasztonyi, Endre – 1-0 – Honfi, Karoly – G112 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Rc1 Nbd7 9. Bg3 e6 10. Be2 Ne4
1958 Munich olm fin-C – Round 8 – Fairhurst, William – 1-0 – Walsh, Chris – G21 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 c6 5. Nf3 Bg7 6. Bf4 O-O 7. e3 dxc4 8. Bxc4 Nbd7 9. Ng5 Qe8 10. O-O b5
1958 Riga ch-URS – Round 1 – Borisenko, Georgy K – 1/2-1/2 – Boleslavsky, Isaac – G45 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 gxh5
1959 Krakow – Round 6 – Book, Eero – 1/2-1/2 – Kozma, Julius – G21 1. c4 Nf6 2. d4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Nd2 Ne4 9. Ndxe4 dxe4 10. Be2 e5
1959 Mar del Plata – Round 1 – De Souza Mendes, Joao – 1/2-1/2 – Sanguinetti, Ricardo – G42 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 b5 9. Be2 Be6 10. Qc2 Na6
1959 Riga – Round 1 – Niemela, Ilmari Aarne – 1/2-1/2 – Witkowski, Stefan – G29 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Nd2 Ne4 9. cxd5 Nxd2 10. Kxd2 Rd8
1960 GBR Ch 47th – Round 4.8 – Fazekas, Stephan – 1/2-1/2 – Payne, Roland – G37 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 e6 8. h3 b6 9. cxd5 exd5 10. Rd1 Bb7
1960 Olympiad final A – Round 3 – Dittmann, Sieghart – 0-1 – Filip, Miroslav – G7 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qa5 8. Rc1 Nbd7 9. Ne5 Nxe5 10. Bxe5 dxc4
1960 UKR Ch sf – Round 16 – ? – 0-1 – Bannik, Anatolij – G104 1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c6 7. Qb3 dxc4 8. Bxc4 Nbd7 9. Ng5 Qe8 10. Bc7 b5
1961 ROM Ch – Round 14 – Soos, Bela – 1-0 – Botez, Constantin – G90 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Rc1 Nbd7 9. Ne5 Nxe5 10. Bxe5 dxc4
1962 Bucharest – Round 7 – Thorbergsson, Freysteinn – 1/2-1/2 – Sajtar, Jaroslav – G34 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Nd2 Ne4 9. Ndxe4 dxe4 10. O-O-O c5
1962 Erevan ch-URS – Round 1 – Krogius, Nikolai V – 0-1 – Aronin, Lev – G56 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. cxd5 Nxd5 9. Be5 Bh6 10. Nd2 Nd7
1962 GDR Ch Gera GER – Round 17 – Golz, Werner – 1/2-1/2 – Muehlberg, Siegfried – G26 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 Qa5 8. Nd2 Nbd7 9. cxd5 Nxd5 10. Nxd5 Qxd5
1962 Hastings6263 – Round 6 – Tan Hoang Liong – 1-0 – Hollis, Adrian – G28 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Nd2 Na6 9. Be2 Qb4 10. Be5 dxc4
1962 Spartak Ch – Round 4 – Kholmov, Ratmir D – 1-0 – Jakhin, Rashid – G26 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Qb3 Bg7 6. Bf4 O-O 7. e3 Qa5 8. Ne5 e6 9. h3 Nbd7 10. Nxd7 Nxd7
1962 Vrnjacka Banja – Round 2 – Bukic, Enver – 1-0 – Panov, Vasily – G23 1. d4 c6 2. c4 d5 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qa5 8. Nd2 Na6 9. Be2 Rd8 10. O-O e6
1963 Bad Liebenstein – Round 11 – Uhlmann, Wolfgang – 1/2-1/2 – Malich, Burkhard, Dr. – G74 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Nd2 Ne4 9. Ndxe4 dxe4 10. Be2 e5
1963 Capablanca Memorial – Round 4 – Calero, Ivan – 1/2-1/2 – Uhlmann, Wolfgang – G32 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c6 7. Qb3 Qa5 8. Be2 dxc4 9. Bxc4 b5 10. Be2 Be6
1963 FRG Ch Bad Pyrmont GER – Round 1 – Gerusel, Mathias – 0-1 – Wolk, Sigmund – G1 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 Qa5 8. Bd3 dxc4 9. Bxc4 b5 10. Bd3 Be6
1963 GDR Ch Aschersleben GER – Round 10 – Golz, Werner – 1/2-1/2 – Malich, Burkhard, Dr. – G54 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4
1963 OWL Ch – Round 6 – Oestreich, Reinhard – 1-0 – Haensch, Reinhard – G18 1. d4 d5 2. c4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 e6 8. h3 Nbd7 9. Bd3 dxc4 10. Bxc4 Nd5
1964 Corr – Round ? – Herzel, Alois, Dr. – 1/2-1/2 – Koch, Berthold – G4 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4
1964 Tel Aviv olm fin-B – Round 3 – Kolvig, Bent – 0-1 – Malich, Burkhard, Dr. – G32 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Be2 dxc4 9. Bxc4 b5 10. Be2 Be6
1964 Tel Aviv olm prel – Round 7 – Kirby, Kenneth – 0-1 – Letelier Martner, Rene – G64 1. d4 d5 2. c4 Nf6 3. Nc3 g6 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 dxc4 8. Bxc4 b5 9. Be2 Be6 10. Qc2 h6
1965 Gyula – Round ? – Gasztonyi, Endre – 0-1 – Korchnoi, Viktor – G20 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bf4 d5 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Rc1 Nbd7 9. Bd3 dxc4 10. Bxc4 Nb6
1965 Gyula – Round 1 – Gastonyi – 0-1 – Korchnoi, Viktor – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Rc1 Nbd7 9. Bd3 dxc4 10. Bxc4 Nb6
1965 Kiel Open – Round 1 – Gerusel, Mathias – 1-0 – Lang Erhard – G3 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 e6 8. Bd3 Re8 9. O-O Nbd7 10. Qc2 dxc4
1965 Leipzig Inter-1 – Round 3 – Opocensky, Karel – 1/2-1/2 – Sajtar, Jaroslav – G10 1. c4 Nf6 2. d4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 O-O 7. Qb3 Qa5 8. Be2 dxc4 9. Bxc4 b5 10. Bd3 Be6
1965 Mar del Plata – Round 4 – Gheorghiu, Florin – 1/2-1/2 – Pilnik, Herman – G30 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Qb3 Bg7 6. Bf4 O-O 7. e3 Qa5 8. cxd5 Nxd5 9. Be5 Qb4 10. Bc4 Qxb3
1966 La Habana olm fin-B – Round 7 – Niemela, Ilmari Aarne – 0-1 – Glauser, Hansruediger – G100 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O 7. Nf3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4
1966 Palma de Majorca ESP – Round 7 – Visier Segovia, Fernando – 1/2-1/2 – Lehmann, Heinz – G11 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c6 7. Qb3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4
1966 Tbilisi ch-URS – Round 1 – Doroshkievich, Vladimir K – 1/2-1/2 – Lein, Andreas – G6 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 O-O 7. e3 Qa5 8. Nd2 Nbd7 9. Be2 Ne4 10. Ndxe4 dxe4
1967 Sousse Interzonal – Round 22 – Geller, Efim P – 1-0 – Myagmarsuren, Lkhamsuren – G202 1. c4 c6 2. d4 d5 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 Bg7 6. e3 O-O 7. Qb3 e6 8. Be2 dxc4 9. Bxc4 Nd5 10. Be5 Qb6
1969 Quito/Guayaquil zt – Round ? – Idrovo, Franklin – 1/2-1/2 – Garcia Martinez, Silvino – G7 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Nf3 O-O 7. Qb3 Qa5 8. Bd3 Nbd7 9. O-O dxc4 10. Bxc4 Nb6
1971 Hoogovens – Round 9 – Mecking, Henrique – 1/2-1/2 – Gligoric, Svetozar – G104 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Qb3 c6 7. Nf3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4
43. Olympiad 2018 – Round 6.8 – Van Wely, Loek – 1/2-1/2 – Petriashvili, Nikoloz – G421 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 g6 5. Bf4 Bg7 6. e3 O-O 7. Nc3 Qb6 8. Qxb6 axb6 9. cxd5 Nxd5 10. Nxd5 cxd5

D93d —

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3 c6 7.Qb3

Les coups candidats

7…Qa5 — 36.7% (326 parties)

Ambassadeurs : Uhlmann, Wolfgang (7x), Inkiov, Ventzislav (7x), Sajtar, Jaroslav (4x), Malich, Burkhard, Dr. (4x), Ghinda, Mihail-Viorel (4x), Beliavsky, Alexander G (4x), Ftacnik, Lubomir (4x), Kotov Lundqvist, Alex (3x)

7…dxc4 — 20.6% (183 parties)

Ambassadeurs : Reshevsky, Samuel (12x), Kashdan, Isaac (6x), Flohr, Salo (3x), Fine, Reuben (3x), Euwe, Max (3x), Nordstrom, Felix (3x), Pinkus, Albert (2x), Bogoljubow, Efim (2x)

7…e6 — 20.3% (180 parties)

Ambassadeurs : Stahlberg, Gideon (2x), Dunkelblum, Arthur (2x), Rodriguez, Roberto (2x), Henzner, Reiner (2x), Sitnik, Igor (2x), Khatenever, Feliks (2x), Romanovsky, Pjotr (1x), Rokhlin, Yakov G (1x)

7…b6 — 8.4% (75 parties)

Ambassadeurs : Fine, Reuben (2x), Bogoljubow, Efim (1x), Stoltz, Gosta (1x), Schwartzman, P. (1x), Raclauskiene E (1x), Elsas, Hansgeorg (1x), Schlage, Willi (1x), Moller, Baldur Helgi (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…Qa5	7…dxc4	7…e6	7…b6
<1800	19	11%	21%	32%	32%
1800-2200	293	25%	19%	28%	11%
2200-2600	235	42%	18%	16%	6%
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7…Qa5	7…dxc4	7…e6	7…b6
1910s	2	100%	—	—	—
1930s	42	26%	29%	21%	14%
1940s	55	31%	47%	11%	5%
1950s	57	49%	19%	18%	4%
1960s	61	67%	18%	11%	—
1970s	61	74%	18%	3%	—
1980s	45	56%	16%	20%	2%
1990s	136	29%	18%	24%	12%
2000s	207	27%	20%	29%	12%
2010s	196	30%	18%	18%	10%
2020s	26	12%	19%	35%	12%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…Qa5	30%	12%	▼ -18.1%
7…dxc4	18%	19%	▲ +1.4%
7…e6	18%	35%	▲ +16.2%
7…b6	10%	12%	▲ +1.3%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 4 parties
Alekhine, Alexander — 1 partie

Parties historiques

7…Qa5 — 36.7% (326 parties)

1912 — Leonhardt, Paul vs Cohn, Erich — 1-0 — Bad Pistyan CZE
1914 — Bogoljubow, Efim vs Carls, Carl — 1-0 — Mannheim GER
1934 — Veresov, Gavriil vs Alatortsev, Vladimir N. — 0-1 — Leningrad ch-URS
1934 — Veresov, Valentin vs Ragozin, Viacheslav — 1-0 — Tbilisi GEO
1935 — Zita, Frantisek vs Skalicka, Karel — 0-1 — Prague CZE

7…dxc4 — 20.6% (183 parties)

1932 — Dobias, Josef vs Burian, Andre — 1-0 — Prague CZE
1934 — Dake, Arthur William vs Denker, Arnold S — 1/2-1/2 — Chicago, IL USA
1935 — Tartakower, Savielly vs Frydman, Paulino — 1-0 — Lodz Lodz POL
1935 — Zita, Frantisek vs Opocensky, Karel — 1-0 — Praag Marshall jub
1936 — Bogoljubow, Efim vs Prins, Lodewijk — 1-0 — Zandvoort NED

7…e6 — 20.3% (180 parties)

1934 — Alatortsev, Vladimir N. vs Freiman, Sergey Nikolaevich — 1-0 — Leningrad ch-URS
1935 — Solin, Ilmari vs Alexander, Conol Hugh — 1/2-1/2 — Warszawa ol
1936 — Rudakovsky, Iosif vs Yudovich, Mikhail M — 1/2-1/2 — Moscow RUS
1936 — Rubinstein, Simon vs Lokvenc, Josef — 1-0 — Vienna AUT
1938 — Kotov Lundqvist, Alex vs Gothilf, Solomon Borisovich — 1/2-1/2 — Leningrad RUS

7…b6 — 8.4% (75 parties)

1935 — Bogoljubow, Efim vs Stoltz, Gosta — 1-0 — Nuerenberg GER
1936 — Moller, Baldur Helgi vs Havasi, Kornel — 1/2-1/2 — Munich GER
1936 — Saemisch, Friedrich vs Rellstab, Ludwig Sr — 1-0 — Berlin GER
1938 — Elsas, Hansgeorg vs Schlage, Willi — 1/2-1/2 — Krefeld GER
1938 — Fine, Reuben vs Morton, Harold — 1-0 — New York, NY USA

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