E11n — Bogo-Indian: Nimzowitsch Variation

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur les cases fortes e5 et g5, un fou actif en d2 et la paire de fous.

Côté adverse. Le fou enfermé en c8 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, le fou f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; 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

Atouts. Les Noirs s'appuient sur un fou actif en b4 et la paire de fous.

Côté adverse. Le fou enfermé en 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, le fou c8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...Nc6 (Développer Nb8) ; ...Bg4 (Clouer Nf3) ; ...c5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v0), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (2v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 0)
Bd2	● Bd2 Actif (mob. 7)
Bb4		● Bb4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	● bishop d2	—
Non développées	4 (b1, f1, a1, h1)	4 (b8, c8, 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
1926 Berlin – Round 1 – Gruenfeld, Ernst – 1-0 – Johner, Paul – G27 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. Qc2 e5 8. e4 Bg4 9. d5 O-O 10. Be2 c6
1926 Semmering – Round 12 – Vidmar Milan – 1-0 – Nimzowitsch, Aron – G115 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Nbxd2 d6 7. Qc2 c5 8. g3 b6 9. Bg2 Bb7 10. O-O Nc6
1927 London Olympiad 1st – Round 5.14 – Michell, Reginald – 1-0 – Kalabar, Sadi – G48 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 b6 7. e4 O-O 8. Bd3 c5 9. O-O d6 10. e5 Ne8
1927 London Olympiad 1st – Round 8.23 – Nogues Acuna, Alejandro – 0-1 – Vajda, Arpad – G81 1. Nf3 Nf6 2. d4 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 b6 7. g3 Bb7 8. Bg2 O-O 9. O-O d6 10. Nc3 Nbd7
1927 Moskou ch-URS – Round 1 – Makogonov, Vladimir – 1-0 – Smorodsky, Andrey – G1 1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 b6 6. e4 Bb7 7. Bd3 Bxd2+ 8. Nbxd2 d6 9. O-O e5 10. dxe5 dxe5
1927 Moskou ch-URS – Round 2 – Freiman, Sergey Nikolaevich – 0-1 – Ilyin Zhenevsky, Alexander – G8 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Bxb4 Qxb4+ 6. Qd2 Qxc4 7. Nc3 Qb4 8. e4 Nc6 9. e5 Nd5 10. a3 Qe7
1927 Santiago de Chile sim – Round 1 – Gonzalez Valenzuela, Federico – 0-1 – Alekhine, Alexander – G1 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d5 7. e3 O-O 8. Bd3 c5 9. O-O Nc6 10. Nb3 b6
1927 Tunbridge Wells – Round 3 – Goldstein, Maurice Edwards – 1/2-1/2 – Buerger, Victor – G8 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bxb4 Qxb4+ 7. Qd2 Qe7 8. Nc3 Bb7 9. Qc2 Na6 10. a3 c5
1928 BCF Ch 21st – Round 1 – Thomas, George Alan – 1-0 – Saunders, Harold – G1 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d6 7. Nc3 e5 8. d5 O-O 9. g3 a5 10. b3 Na6
1928 Hastings Premier /29 9th – Round 1 – Marshall, Frank – 1/2-1/2 – Takacs, Sandor – G2 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Bxb4 Qxb4+ 6. Qd2 Qxd2+ 7. Nbxd2 d6 8. e4 Nc6 9. Bd3 e5 10. d5 Nb4
1928 Hastings Premier /29 9th – Round 2 – Buerger, Victor – 0-1 – Michell, Reginald – G7 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 c5 7. e3 Nc6 8. a3 b6 9. Bd3 Bb7 10. O-O O-O
1928 Mar del Plata – Round 1 – Castillo Larenas, Mariano – 0-1 – Gabarain J – G1 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. Be2 Ne8 10. Qc2 a5
1928 Vienna – Round 8 – Lichtenstein, Bernhard – 1/2-1/2 – Tartakower, Savielly – G50 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e3 O-O 8. Qc2 e5 9. dxe5 dxe5 10. Be2 Nc6
1929 Karlsbad – Round 18 – Gilg, Karl – 1-0 – Matisons, Hermanis – G199 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 O-O 7. Nc3 d5 8. e3 Nbd7 9. cxd5 exd5 10. Bd3 c6
1929 Paris – Round 11 – Duchamp, Marcel – 0-1 – Lazard, Frederic – G44 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. Be2 Nbd7 10. b4 Re8
1929 Paris – Round 5 – Duchamp, Marcel – 0-1 – Znosko-Borovsky, Eugene – G21 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. Be2 a5 10. b4 axb4
1929 Paris – Round 5 – Duchamp, Marcel – 0-1 – Znosko-Borovsky, Eugene – G22 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. Be2 a5 10. b4 axb4
1929 Paris Paris FRA – Round 1 – Menchik, Vera Frantsevna – 1/2-1/2 – Znosko-Borovsky, Eugene – G2 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 b6 6. a3 Bxd2+ 7. Nbxd2 Bb7 8. g3 d6 9. Bg2 Nbd7 10. O-O O-O
1929 Scarborough – Round 6 – Wahltuch, Victor – 1/2-1/2 – Saunders, Harold – G9 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 O-O 8. Bd3 Re8 9. O-O e5 10. Ne4 Nxe4
1930 Hamburg ol – Round ? – Marshall, Frank – 1-0 – Petrov, Vladimirs – G18 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Nc3 Bxc3 9. Bxc3 b6 10. Rc1 Bb7
1930 Hamburg olm – Round 1 – Weenink, Henri – 1-0 – Vajda, Arpad – G14 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 O-O 8. Bd3 Nc6 9. a3 e5 10. O-O Bg4
1930 Hamburg olm – Round 14.4 – Gemzoe, Jacob – 0-1 – Steiner, Heinrich Jun. – G40 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qb3 Bxd2+ 6. Nbxd2 d5 7. e3 Nbd7 8. cxd5 exd5 9. Rc1 c6 10. Bd3 O-O
1930 Hamburg olm – Round 7.1 – Marshall Viele, Fabrizio Aaron – 1/2-1/2 – Vajda, Adam – G25 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 O-O 8. Bd3 Re8 9. O-O-O Nc6 10. a3 e5
1930 San Remo – Round 1 – Grau, Roberto G – 1/2-1/2 – Monticelli, Mario – G65 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 Nbd7 9. b4 O-O 10. g3 Ne8
1931 Argentina – Round 10 – Grau, Roberto G – 0-1 – Nogues Acuna, Alejandro – G31 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 O-O 7. Nc3 d6 8. e4 e5 9. d5 a5 10. b3 Nh5
1931 Argentina – Round 12 – Bolbochan, J. – 1-0 – Abata Molina, Santiago Andres – G40 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Nbxd2 d6 7. Qc2 Nbd7 8. Bd3 c5 9. O-O O-O 10. Rad1 e5
1931 New York – Round 1 – Fox, Maurice – 0-1 – Santasiere, Anthony – G10 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 b6 7. Nc3 Bb7 8. e3 Ne4 9. Nxe4 Bxe4 10. Bd3 f5
1931 New York – Round 1 – Marshall Viele, Fabrizio Aaron – 1-0 – Fox, Maurice – G9 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 b6 6. e4 Bxd2+ 7. Nbxd2 d6 8. e5 dxe5 9. dxe5 Nfd7 10. Qe4 c6
1931 New York – Round 4 – Kupchik, Abraham – 0-1 – Kevitz, Alexander – G36 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Nc6 7. O-O Bxd2 8. Nbxd2 d6 9. e4 e5 10. d5 Nd8
1931 New York – Round 5 – Marshall Viele, Fabrizio Aaron – 0-1 – Kupchik, Abraham – G38 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 e5 8. Bd3 Nbd7 9. O-O O-O 10. Rae1 Re8
1931 Prague ol Prague CZE – Round 15 – Michel, Walter – 1-0 – Luckis, Marcos – G52 1. d4 e6 2. c4 Bb4+ 3. Bd2 Qe7 4. Nf3 Nf6 5. a3 Bxd2+ 6. Nbxd2 d5 7. e3 Nbd7 8. Qc2 c6 9. Bd3 O-O 10. O-O Re8
1932 Cambridge Premier – Round 3 – Sultan Khan, Mir – 1/2-1/2 – Thomas, George Alan – G7 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 b6 6. Nc3 Bb7 7. e3 Bxc3 8. Bxc3 Ne4 9. Bd3 Nxc3 10. Qxc3 d6
1932 Leningrad Ch – Round 1 – Rabinovich, Ilya Mar – 1/2-1/2 – Chekhover, Vitaly – G24 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 c5 7. g3 cxd4 8. Nxd4 Qc5 9. N2b3 Qb4+ 10. Qd2 Qxd2+
1932 Pasadena – Round 1 – Bernstein, Jacob – 1-0 – Araiza Munoz, Jose Joaquin – G6 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 d5 6. Nc3 O-O 7. e3 Nbd7 8. Bd3 dxc4 9. Bxc4 e5 10. a3 Ba5
1932 Trebitsch Memorial 15th – Round 2 – Palda, Karl – 0-1 – Mueller, Hans – G3 1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. Bd3 Nh5 10. Nf1 Nf4
1933 Folkestone Olympiad 5th – Round 6.9 – Fairhurst, William – 1/2-1/2 – Eliskases, Erich – G58 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. g3 b6 8. Bg2 Bb7 9. O-O O-O 10. e4 e5
1933 Paris Paris FRA – Round 1 – Baratz, Abraham – 1/2-1/2 – Lilienthal, Andor – G1 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 b6 7. Nc3 Bb7 8. Bd3 d6 9. e4 Nbd7 10. O-O O-O
1934 Bad Liebenwerda – Round 6 – Herzog, Franz – 1-0 – Henneberger, Walter – G19 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Qxd2 d6 8. Nc3 c6 9. h3 Nbd7 10. e4 e5
1934 Copenhagen – Round 1 – RosschouLarsen – 0-1 – Andersen, Erik – G18 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Be2 Bb7 7. O-O O-O 8. Ne5 Bxd2 9. Nxd2 d6 10. Bf3 c6
1934 Sitges – Round 3 – Del Valle Domenech, Rafael – 0-1 – Lilienthal, Andor – G18 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 b6 7. Nc3 Bb7 8. Qc2 O-O 9. e3 c5 10. dxc5 bxc5
1934 Zuerich – Round 1 – Naegeli, Oskar – 0-1 – Henneberger, Walter – G53 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 O-O 7. Nc3 d6 8. Be2 c6 9. O-O Nbd7 10. Rfd1 Rd8
1935 6. C.to Italiano – Round ? – Sacconi, Antonio – 1-0 – Hellmann Ernesto – G13 1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 b6 7. g3 Bb7 8. Bg2 O-O 9. O-O c5 10. Nb3 cxd4
1935 Barcelona – Round 1 – Ribera Arnal, Angel – 0-1 – Thomas, George Alan – G13 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. g3 Nbd7 8. Bg2 O-O 9. O-O Re8 10. e4 e5
1935 Buenos Aires – Round 10 – Hounie Fleurquin, Carlos – 1-0 – Villegas, Benito – G77 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. a3 Bxd2+ 7. Nbxd2 d6 8. Bd3 e5 9. Qc2 Re8 10. dxe5 dxe5
1935 Copenhagen – Round 4 – Klausen, V. – 0-1 – Andersen, Erik – G28 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e3 Nbd7 8. Bd3 O-O 9. O-O e5 10. Qc2 Re8
1935 Copenhagen – Round 7 – Poulsen, Carl – 1-0 – Korning, Peter – G32 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d5 7. Qc2 O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Qxe4 Nd7
1935 GER ch Bad Aachen – Round 12 – Ahues, Carl – 1-0 – Weissgerber, Gerhard – G15 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e3 e5 8. dxe5 dxe5 9. Qc2 O-O 10. Bd3 h6
1936 Mar del Plata – Round 6 – Piazzini, Luis – 0-1 – Schwartzman, Alejandro – G45 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 d5 6. a3 Bxd2+ 7. Nbxd2 O-O 8. e3 c6 9. Bd3 Nbd7 10. Ne5 c5
1936 Olympiad (unofficial) – Round 3 – Cruz, Walter – 1-0 – Monticelli, Mario – G24 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 Bg4 9. Qb3 b6 10. h3 Bxf3
1936 Olympiad (unofficial) – Round 7 – Salbu, K – 0-1 – Ozols, Karlis – G56 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e3 Nbd7 8. Qc2 e5 9. d5 a5 10. b3 O-O
1937 Bad Elster – Round 4 – Pelikán, Jiří – 1/2-1/2 – Grosser, Wilhelm – G14 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. Qc2 d5 6. a3 Bxd2+ 7. Nbxd2 O-O 8. e3 c6 9. Ne5 Nbd7 10. Bd3 h6
1940 New York ch-USA – Round 17 – Denker, Arnold S – 1-0 – Bernstein, Sidney – G100 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Ne4 6. Bd3 f5 7. O-O Bxd2 8. Nbxd2 Nxd2 9. Qxd2 O-O 10. e4 d6
1940 New York ch-USA – Round 5 – Polland David – 0-1 – Bernstein, Sidney – G24 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 Ne4 7. Qc2 f5 8. g3 O-O 9. Bg2 d6 10. Nc3 Nxc3
1941 Ventnor City – Round 7 – Levin, Jerome A – 1-0 – Bernstein, Sidney – G22 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. Qc3 Nbd7 8. g3 O-O 9. Bg2 e5 10. O-O a5
1947 BRA Ch – Round 9 – Carvalho, Flavio – 0-1 – De Freitas, Marcio Elisio – G16 1. d4 e6 2. c4 Nf6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 O-O 7. Nc3 d6 8. g3 e5 9. Bg2 Nbd7 10. O-O Nb6
1947 Yugoslavia Ch – Round 4 – Vidmar, Milan Jr – 1/2-1/2 – Pirc, Vasja – G20 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Be2 Bxd2+ 7. Qxd2 d6 8. Nc3 Nbd7 9. O-O e5 10. Qc2 c6
1948 South Fallsburg ch-USA – Round 1 – Janes, Miroslav – 0-1 – Ulvestad, Olaf – G41 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. Be2 Nh5 10. g3 g6
1949 CAN Ch Arvida – Round 5 – Rauch, Joseph Lyon – 1-0 – Andersen, Borge – G6 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. Be2 g6 10. h4 a5
1951 San Rafael – Round ? – Letelier Martner, Rene – 1/2-1/2 – German, Eugenio – G28 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bd3 Bb7 7. O-O O-O 8. Qc2 Bxd2 9. Nbxd2 d6 10. Rae1 g6
1951 Schlechter Memorial – Round ? – Michel, Paul – 1/2-1/2 – Beni, Alfred – G14 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 Nbd7 9. Be2 Nf8 10. Nh4 Ng6
1951 Simul Prins clock – Round ? – Joyner, Ivan J – 0-1 – Prins, Lodewijk – G3 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 b6 7. Nc3 Bb7 8. Qc2 O-O 9. e4 d5 10. Bd3 dxc4
1951 Toronto Ch finals – Round 3 – Jewitt, Earl – 0-1 – Anderson, Frank Ross – G5 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 Ne4 7. Qc2 f5 8. Nc3 Nxc3 9. Qxc3 b6 10. g3 Bb7
1952 Ontario Ch – Round 3 – Jewitt, Earl – 0-1 – Anderson, Frank Ross – G6 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. g3 O-O 8. Bg2 e5 9. O-O c5 10. d5 Ne8
1954 DDR Ch U20 – Round 5 – Birkholz, Hans Joachim – 0-1 – Bertholdt, Dieter – G20 1. d4 e6 2. c4 Nf6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d6 7. Nc3 O-O 8. g3 e5 9. Bg2 c6 10. O-O Re8
1954 Munich zt – Round 5 – Golombek, Harry – 1/2-1/2 – Pirc, Vasja – G29 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Nbxd2 d6 8. O-O e5 9. Qc2 Bg4 10. Ng5 h6
1955 DDR Ch 06th – Round 5 – Raths, Arno – 1/2-1/2 – Fuchs, Reinhart – G22 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Nbxd2 d6 8. O-O e5 9. Qc2 Bg4 10. dxe5 dxe5
1955 Hungary Ch – Round 1 – Gracs, Pal – 0-1 – Barcza, Gedeon – G25 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 b6 7. g3 Bb7 8. Bg2 c5 9. O-O O-O 10. Nc3 d6
1955 Poland ch13 – Round 1 – Balcarek, Wiktor – 0-1 – Sliwa, Bogdan – G2 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Nbxd2 d6 7. g3 b6 8. Bg2 Bb7 9. O-O c5 10. Qc2 Nc6
1955 USSR – Round 1 – Polugaevsky, Lev – 1-0 – Ragozin, Viacheslav – G6 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 e5 8. Bd3 O-O 9. O-O Bg4 10. dxe5 dxe5
1955 Zagreb – Round 10 – Minev, Nikolay N – 0-1 – Dueckstein, Andreas – G105 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Qxd2 d6 8. O-O e5 9. Be2 Bg4 10. Nc3 Nbd7
1957 DDR Ch 08th – Round 7 – Malich, Burkhard, Dr. – 1-0 – Braun, Gottfried, Dr. – G44 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 d6 7. Be2 O-O 8. Nc3 e5 9. O-O a5 10. b3 Nc6
1957 Moskou ch-URS – Round 2 – Antoshin, Vladimir S – 1-0 – Gurgenidze, Bukhuti – G29 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Nbxd2 d6 8. O-O e5 9. Qc2 h6 10. h3 Nc6
1957 Sombor – Round 10 – Udovcic, Mijo – 1/2-1/2 – Ivkov, Borislav – G102 1. d4 e6 2. c4 Nf6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 b6 7. g3 Bb7 8. Bg2 O-O 9. O-O d6 10. Ne1 Bxg2
1959 Buenos Aires Ch – Round 2 – Foguelman, Alberto – 1-0 – Espinosa Flores, Rafael Emilio – G5 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 d5 6. a3 Bxd2+ 7. Nbxd2 O-O 8. e4 dxe4 9. Nxe4 Nbd7 10. Nxf6+ Nxf6
1959 Corr Wch3 – Round 1 – Dubinin, Peter – 1-0 – Lundquist, A. – G1 1. c4 e6 2. d4 Bb4+ 3. Bd2 Qe7 4. Nf3 Nf6 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 c5 8. Bd3 Nc6 9. dxc5 dxc5 10. a3 Bd7
1960 Leipzig olm prel – Round 1 – Kraidman, Yair – 0-1 – Tan, Hoan Liang – G1 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bd3 Bb7 7. O-O Bxd2 8. Nbxd2 c5 9. Qc1 Nc6 10. a3 O-O
1960 Leningrad tt – Round 8 – Mititelu, Gheorghe – 1/2-1/2 – Langeweg, Kick – G101 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d6 7. Nc3 a5 8. g3 b6 9. Bg2 Bb7 10. O-O Nbd7
1960 Olympiad prel I – Round 1 – Kraidman, Yair – 0-1 – Tan Hoang Liong – G3 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bd3 Bb7 7. O-O Bxd2 8. Nbxd2 c5 9. Qc2 Nc6 10. a3 O-O
1960 Olympiad prel III – Round 3 – Golombek, Harry – 0-1 – Barcza, Gedeon – G19 1. d4 e6 2. c4 Bb4+ 3. Bd2 Qe7 4. Nf3 Nf6 5. a3 Bxd2+ 6. Qxd2 Nc6 7. e3 O-O 8. Nc3 b6 9. Be2 Na5 10. Qc2 c5
1960 WchT U26 07th – Round 14 – Mititelu, Gheorghe – 1-0 – Beyen, Roland – G35 1. d4 e6 2. c4 Bb4+ 3. Bd2 Qe7 4. Nf3 Nf6 5. a3 Bxd2+ 6. Qxd2 Ne4 7. Qc2 f5 8. Nc3 Nxc3 9. Qxc3 O-O 10. g3 b6
1961 Arlesheim int – Round 9 – Krivec Slavko – 1/2-1/2 – Dueckstein, Andreas – G24 1. c4 e6 2. d4 Nf6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Be2 Bb7 7. O-O Bxd2 8. Qxd2 O-O 9. Nc3 d6 10. Rfd1 Ne4
1961 Belgrade Open – Round 1 – Tomovic, Vasilje – 1-0 – Smederevac, Petar – G1 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 O-O 7. e3 d6 8. Nc3 e5 9. Be2 e4 10. Ng1 c6
1961 FRG Ch – Round 11 – Kohl, Werner – 1-0 – Clemens, Christian, Dr. – G10 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 c5 9. Bd3 Nh5 10. g3 O-O
1961 FRG Ch Bad Prymont – Round 11 – Kohl, Andreas – 1-0 – Clemens, Christian, Dr. – G23 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 c5 9. Bd3 Nh5 10. g3 O-O
1961 FRG Ch Bad Prymont – Round 4 – Pfeiffer, Gerhard – 1-0 – Clemens, Christian, Dr. – G9 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Nbxd2 d6 8. O-O e5 9. e4 Bg4 10. d5 c5
1961 Katowice ch18-POL – Round 9 – Balcerowski, Witold – 1-0 – Lachut, J. – G58 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 Ne4 7. Qc2 d5 8. e3 c6 9. Bd3 f5 10. O-O Nd7
1961 URU Ch sf – Round ? – Abelenda Suarez, Saul – 0-1 – Bauza, Lorenzo – G4 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e3 O-O 8. Bd3 e5 9. e4 Bg4 10. Qc2 Nbd7
1961 Zagreb – Round 17 – Trifunovic, Petar – 1-0 – Krstev, Krum – G138 1. Nf3 Nf6 2. d4 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 Ne4 6. Bd3 Nxd2 7. Nbxd2 d5 8. O-O O-O 9. Qc2 h6 10. a3 Bxd2
1962 Capablanca Memorial – Round 2 – Milev, Zdravko – 1/2-1/2 – Matanovic, Aleksandar – G14 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nfxd2 d6 9. Nc3 Rd8 10. Be2 Nbd7
1962 IBM – Round 9 – Kool, Gerard – 0-1 – Rellstab, Ludwig – G43 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. Bd3 O-O 9. O-O Bg4 10. Qb3 Nc6
1962 Olympiad Varna BUL – Round 2 – Balcerowski, Witold – 0-1 – Rantanen, Martti – G15 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d5 7. e3 O-O 8. Nc3 c6 9. Qc2 Nbd7 10. cxd5 cxd5
1962 Skopje ch17-YUG – Round 1 – Lukic, Arsenije – 0-1 – Sokolov, Vladimir – G29 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qb3 Bxd2+ 6. Nbxd2 d6 7. g3 O-O 8. Bg2 e5 9. O-O Nbd7 10. e3 c6
1962 Stockholm Interzonal – Round 11 – Benko, Pal – 1/2-1/2 – Petrosian, Tigran V – G94 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 O-O 7. Nc3 d6 8. Be2 e5 9. O-O Bf5 10. Nh4 Bd7
1962 Stockholm Interzonal – Round 9 – Uhlmann, Wolfgang – 1/2-1/2 – Petrosian, Tigran V – G8 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Be2 Bxd2+ 7. Nfxd2 O-O 8. O-O c5 9. Bf3 d5 10. Nc3 Bb7
1963 Alekhine Memorial – Round 1 – Balcerowski, Witold – 0-1 – Matanovic, Aleksandar – G5 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 O-O 7. Nc3 d5 8. e3 c6 9. Rd1 Nbd7 10. h3 a5
1963 Asztalos Memorial 6th – Round 1 – Flesch, János – 1/2-1/2 – Dely, Peter – G1 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 e5 8. Bd3 O-O 9. O-O Re8 10. Ne4 Nbd7
1963 Bad Liebenstein – Round 10 – Malich, Burkhard, Dr. – 1/2-1/2 – Gipslis, Aivars – G66 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 d6 7. Be2 c5 8. O-O Nc6 9. Nc3 O-O 10. Rad1 Rd8
1963 Bad Liebenstein – Round 14 – Polugaevsky, Lev – 1/2-1/2 – Ciocaltea, Victor – G93 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 d6 7. Be2 O-O 8. Nc3 c5 9. O-O Nc6 10. Rfd1 Rd8
1963 Capablanca Memorial – Round 5 – Jimenez Zerquera, Eleazar – 1/2-1/2 – Trifunovic, Petar – G43 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 c5 9. Be2 Nc6 10. Nb3 d6
1963 Halle zt – Round 1 – Minev, Nikolay N – 1/2-1/2 – Ivkov, Borislav – G44 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Be2 Bb7 7. O-O Bxd2 8. Qxd2 Ne4 9. Qc2 c5 10. Nc3 Nxc3
1963 Telnice/Usti – Round ? – Kupka, Slavoj – 1/2-1/2 – Vesely, Jiri – G7 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 b6 7. g3 Bb7 8. Bg2 O-O 9. O-O d6 10. Nc3 Ne4
1964 BRA Ch – Round 4 – Farias, Sergio A. B. Lopes de – 1/2-1/2 – Alves, Francisco H B Severino – G12 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 d5 9. cxd5 exd5 10. Rc1 c6
1964 ESP Ch 29th – Round 3 – Pomar Salamanca, Arturo – 1-0 – Franco Raymundo, Eduardo – G12 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d6 7. Nc3 c6 8. e4 e5 9. dxe5 dxe5 10. Qg5 O-O
1964 EU Team Ch sf – Round 6.9 – Kadrev, Zdravko – 1/2-1/2 – Neukirch, Detlef – G96 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 a5 7. Nc3 d6 8. g3 O-O 9. Bg2 e5 10. O-O Nbd7
1964 GBR Ch 51st – Round 10.4 – Ansell, John – 0-1 – Cafferty, Bernard – G19 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Nc3 d6 7. a3 Bxc3 8. Bxc3 Ne4 9. Qc2 Nxc3 10. Qxc3 Nd7
1964 Kiev ch-URS – Round 1 – Liavdansky, Vladimir – 1/2-1/2 – Goldenov, Boris P – G30 1. d4 e6 2. c4 Bb4+ 3. Bd2 Qe7 4. Nf3 Nf6 5. e3 Nc6 6. a3 Bxd2+ 7. Nbxd2 e5 8. dxe5 Nxe5 9. Qc2 d6 10. Nxe5 dxe5
1964 Malaga – Round 3 – Pomar Salamanca, Arturo – 1-0 – Robatsch, Karl – G13 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 O-O 7. Nc3 d6 8. Be2 e5 9. O-O Bg4 10. h3 Bf5
1964 Moscow RUS – Round 1 – Jakhin, Rashid – 1/2-1/2 – Averbakh, Yuri L – G4 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Nbxd2 d6 8. Qc2 e5 9. O-O Bg4 10. Bf5 Bxf5
1964 Pecs – Round 12 – Flesch, János – 1/2-1/2 – Gipslis, Aivars – G70 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 Bb7 9. Be2 c5 10. O-O Ke7
1964 Pecs – Round 15 – Damjanovic, Mato – 1/2-1/2 – Flesch, János – G92 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 Bb7 9. Be2 d6 10. O-O c5
1964 Stevenson Memorial 12th – Round 4 – May, Alan K – 0-1 – Milner Barry, Philip – G11 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Nc6 6. a3 Bxd2+ 7. Nbxd2 d6 8. Be2 e5 9. d5 Nb8 10. Qc2 a5
1965 Northern Open – Round 7 – Golombek, Harry – 1/2-1/2 – Griffiths, Peter C – G8 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 e5 8. Bd3 O-O 9. O-O Bg4 10. Ng5 h6
1965 San Juan US Open – Round 3 – Zalys, Ignas – 1/2-1/2 – Betza, Ralph – G2 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 d6 7. Nc3 c5 8. Be2 b6 9. Rd1 Bb7 10. dxc5 dxc5
1965 Tbilisi Tbilisi GEO – Round 1 – Kolarov, Atanas S. – 1/2-1/2 – Gipslis, Aivars – G18 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 c5 9. Be2 Bb7 10. O-O d6
1966 Kecskemet Laszlo Toth Memorial – Round 9 – Simagin, Vladimir – 1/2-1/2 – Barcza, Gedeon – G29 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e3 c5 8. Bd3 Nc6 9. a3 h6 10. O-O O-O
1966 Tbilisi ch-URS – Round 5 – Savon, Vladimir – 1/2-1/2 – Korchnoi, Viktor – G44 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Nbxd2 d6 7. Be2 e5 8. O-O O-O 9. Rc1 c5 10. Nb1 e4
1966 US Open – Round 5 – Kenney, George – 1/2-1/2 – Zemgalis, Elmars – G28 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 Ne4 7. Qc2 f5 8. Nc3 Nxc3 9. Qxc3 d6 10. g3 Nd7
1967 Capablanca Memorial – Round 17 – Cobo Arteaga, Eldis – 1/2-1/2 – Abreu Rodriguez, Juan Luis – G147 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Bxb4 Qxb4+ 6. Qd2 Qe7 7. Nc3 d6 8. e3 O-O 9. Be2 Re8 10. O-O Nbd7
1967 DSV-Turnier – Round 15 – Bukic, Enver – 1/2-1/2 – Schoeneberg, Manfred – G89 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 d6 9. Be2 c5 10. O-O 1/2-1/2
1967 Oxford ch-BCF – Round 11 – Wade, Robert G – 1/2-1/2 – Cafferty, Bernard – G101 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Nbxd2 d6 7. Rc1 c5 8. b4 Nbd7 9. bxc5 dxc5 10. Ne5 cxd4
1967 Sofia tt – Round 6 – Kolarov, Atanas Stefanov – 1/2-1/2 – Fuchs, Reinhart – G90 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bxb4 Qxb4+ 7. Qd2 Qe7 8. Nc3 d6 9. Bd3 e5 10. dxe5 dxe5
1967 Sousse Interzonal – Round 13 – Mecking, Henrique – 1-0 – Gipslis, Aivars – G116 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 c5 7. Be2 b6 8. Nc3 O-O 9. O-O Bb7 10. d5 exd5
1967 Sousse Interzonal – Round 9 – Weiman Hort, Valentin – 1/2-1/2 – Kortchnoi, V. – G79 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 b6 7. Nc3 Bb7 8. Be2 O-O 9. O-O c5 10. Rfd1 Rd8
1967 Sweden (ch) – Round 12 – Stenborg, Ake – 1/2-1/2 – Kinnmark, Ove – G61 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 d6 9. Be2 Nbd7 10. O-O O-O
1967 URS Team Ch – Round ? – Valiev, P. – 0-1 – Vistaneckis, Isakas – G6 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 d5 6. e3 O-O 7. a3 Bxd2+ 8. Nbxd2 c5 9. dxc5 Qxc5 10. b4 Qe7
1967 URS Team Ch – Round 1 – Korchnoi, Viktor – 1-0 – Maslov Lavrenuk, Vladimir – G52 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Qc2 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. Be2 Nh5 10. g3 g6
1968 Alma Ata ch-URS – Round 1 – Kholmov, Ratmir D – 1/2-1/2 – Polugaevsky, Lev – G13 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bd3 Bb7 7. O-O O-O 8. Bxb4 Qxb4 9. Qc2 Bxf3 10. gxf3 Qa5
1968 CSR Ch – Round 11 – Sikora-Lerch, Jan – 1/2-1/2 – Augustin, Josef – G95 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 d6 9. e4 Nbd7 10. e5 dxe5
1968 Lugano SUI – Round 4 – Kraidman, Yair – 1-0 – Kristinsson, Jon – G73 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Qxd2 d6 8. Qc3 Nbd7 9. O-O e5 10. Nfd2 Re8
1968 Varna BUL – Round 10 – Padevsky, Nikola – 1/2-1/2 – Kolarov, Atanas Stefanov – G30 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nbxd2 d6 9. Bd3 Nc6 10. O-O-O e5
1969 Buesum – Round 7 – Szily, Jozsef – 1/2-1/2 – Ivkov, Borislav – G30 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bd3 Bb7 7. O-O Bxd2 8. Nbxd2 d6 9. Qc2 c5 10. Ne4 Nbd7
1969 Moskou ch-URS – Round 1 – Tal, Mikhail – 1/2-1/2 – Gipslis, Aivars – G52 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 d6 7. Nc3 O-O 8. Be2 c5 9. O-O Nc6 10. dxc5 dxc5
1969 Moskou ch-URS – Round 1 – Tukmakov, Vladimir B – 1/2-1/2 – Polugaevsky, Lev – G54 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 d6 7. Nc3 e5 8. d5 O-O 9. Be2 a5 10. O-O Na6
1969 Raach zt – Round 17 – Barczay, Laszlo – 1/2-1/2 – Lahti, Jouko – G141 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 Ne4 7. Qc2 f5 8. g3 d5 9. Bg2 O-O 10. O-O c6
1969 Schwerin – Round 1 – Pfeil, Antoine – 1/2-1/2 – Liebert, Heinz – G9 1. d4 e6 2. c4 Bb4+ 3. Bd2 Qe7 4. Nf3 Nf6 5. a3 Bxd2+ 6. Qxd2 O-O 7. Nc3 d6 8. e3 b6 9. Be2 Bb7 10. O-O Nbd7
1969 Sweden – Round 1 – Ljungquist, Lennart – 1/2-1/2 – Ek, Hans – G18 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Bxb4 Qxb4+ 6. Qd2 Qxd2+ 7. Nbxd2 b6 8. g3 Bb7 9. Bg2 O-O 10. O-O d6
1969 Tallinn it – Round 11 – Nei, Iivo – 1/2-1/2 – Barcza, Gedeon – G45 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 d6 7. Nc3 Nbd7 8. Bd3 c6 9. O-O O-O 10. Qc2 Re8
1970 Vinkovci – Round 12 – Bertok, Mario – 1/2-1/2 – Parma, Bruno – G53 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 O-O 9. g3 a5 10. b4 c6
2024 Superbet Chess Blitz – Round 5 – Shevchenko Kirill – 0-1 – Praggnanandhaa R – G25 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bd3 Bb7 7. Nc3 O-O 8. O-O d6 9. Bc2 Nbd7 10. Qe2 Bxc3
2024 Superbet Chess Blitz – Round 7 – Giri Anish – 1/2-1/2 – Duda Jan-Krzysztof – G32 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 O-O 6. Bd3 Bxd2+ 7. Qxd2 d6 8. Nc3 Re8 9. O-O e5 10. Bc2 c6
Moskou ch-URS 1973 – Round 14 – Spassky, Boris V. – 1/2-1/2 – Tal, Mikhail – G84 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 b6 6. Bxb4 Qxb4+ 7. Qd2 Qxd2+ 8. Nfxd2 c5 9. dxc5 bxc5 10. Nc3 Ke7

E11n — Nimzowitsch Variation

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7

Eval: [+0.34]

Les coups candidats

5.g3 — 60.9% (10244 parties) →

Ambassadeurs : Farago, Ivan (52x), Rashkovsky, Nukhim N (42x), Hernandez Onna, Roman (35x), Loginov, Valery A (33x), Drasko, Milan (32x), Inkiov, Ventzislav (30x), Hracek, Zbynek (28x), Ivkov, Borislav (26x)

5.a3 — 14.1% (2379 parties)

Ambassadeurs : Kiik, Kalle (5x), Schalkwijk, Peter H (5x), Detko, Jan (5x), Griffiths, Peter C (4x), Gacso, Tibor (4x), Miroshnik, Ekaterina (4x), Mamedjarova, Turkan (4x), Kosteniuk, Alexandra (4x)

5.Nc3 — 12.2% (2050 parties) →

Ambassadeurs : Ivekovic, Tihana (10x), Jasnikowski, Zbigniew (7x), Liwak, Przemyslaw (6x), Miles, Anthony J (5x), Bartel, Marta (5x), Vodicka, Milan (5x), Khomeriki, Nino (5x), Gipslis, Aivars (4x)

5.e3 — 7.2% (1211 parties)

Ambassadeurs : Gipslis, Aivars (10x), Kraidman, Yair (6x), Malich, Burkhard, Dr. (6x), Kolanek, Roman (5x), Gunina, Valentina (5x), Ohler, Julius (5x), Andersen, Erik (4x), Polugaevsky, Lev (4x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.g3	5.a3	5.Nc3	5.e3
<1800	389	32%	33%	18%	10%
1800-2200	5165	45%	24%	15%	8%
2200-2600	8540	75%	6%	10%	6%
2600+	277	83%	3%	9%	5%

Évolution par décennie (% des parties)

Décennie	N parties	5.g3	5.a3	5.Nc3	5.e3
1920s	55	33%	27%	18%	7%
1930s	195	48%	15%	11%	10%
1940s	73	64%	8%	11%	8%
1950s	123	50%	11%	17%	15%
1960s	188	29%	17%	19%	24%
1970s	228	52%	15%	12%	14%
1980s	1079	78%	6%	8%	4%
1990s	2993	69%	11%	11%	4%
2000s	4155	58%	17%	13%	6%
2010s	6053	59%	16%	13%	6%
2020s	1672	57%	11%	10%	16%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.g3	59%	57%	▼ -2.2%
5.a3	16%	11%	▼ -4.3%
5.Nc3	13%	10%	▼ -3.3%
5.e3	6%	16%	▲ +10.2%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 10 parties
Anand, Viswanathan — 10 parties
Tal, Mikhail — 7 parties
Ju, Wenjun — 5 parties
Euwe, Max — 4 parties
Smyslov, Vladimir — 4 parties
Carlsen, Magnus — 4 parties
Botvinnik, Mikhail — 3 parties
Alekhine, Alexander — 3 parties
Kasparov, Garry — 3 parties
Kramnik, Vladimir — 2 parties
Karpov, Aleksandr — 1 partie
Ding, Liren — 1 partie
Hou, Yifan — 1 partie
Gukesh D — 1 partie

Parties historiques

5.g3 — 60.9% (10244 parties)

1927 — Fairhurst, William vs Nimzowitsch, Aaron — 0-1 — London ENG
1927 — Preusse, August Georg vs Machate, Gottlieb — 1-0 — Magdeburg GER
1927 — Gruenfeld, Ernst vs Euwe, Max — 1-0 — London ENG
1927 — Vidmar, Milan Sr vs Alekhine, Alexander — 1/2-1/2 — New York, NY USA
1928 — Gruenfeld, Ernst vs List, Paul — 1-0 — Berlin GER

5.a3 — 14.1% (2379 parties)

1926 — Gruenfeld, Ernst vs Johner, Paul — 1-0 — Berlin GER
1927 — Michell, Reginald vs Kalabar, Sadi — 1-0 — London ENG
1927 — Gonzalez Valenzuela, Federico vs Alekhine, Alexander — 0-1 — Santiago de Chile
1927 — Nogues Acuna, Alejandro vs Vajda, Arpad — 0-1 — London ENG
1928 — Thomas, George Alan vs Saunders, Harold — 1-0 — Tenby

5.Nc3 — 12.2% (2050 parties)

1927 — Saemisch, Friedrich vs List, Paul — 1/2-1/2 — Magdeburg GER
1927 — Winter, William vs Marshall Viele, Fabrizio Aaron — 1/2-1/2 — London ENG
1927 — Vidmar, Milan sr vs Nimzowitsch, Aaron — 0-1 — New York, NY USA
1928 — Mueller, Hans vs Takacs, Sandor — 1/2-1/2 — Vienna AUT
1928 — Winter, William vs Saunders, Harold — 1-0 — Scarborough/ North Yorkshire

5.e3 — 7.2% (1211 parties)

1926 — Vidmar Milan vs Nimzowitsch, Aron — 1-0 — Semmering AUT
1927 — Goldstein, Maurice Edwards vs Buerger, Victor — 1/2-1/2 — Tunbridge Wells
1928 — Kmoch, Hans vs Becker, Albert — 1/2-1/2 — XII.Trebitsch /04/
1929 — Marshall Viele, Fabrizio Aaron vs Alekhine, Alexander — 0-1 — New York, NY USA
1930 — Model, Abram vs Zak, Vladimir G — 1-0 — Leningrad RUS

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