E45a — Nimzo-Indian: Nimzowitsch, 5.Ne2 Ba6

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Ba6 * ○ 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 f4 et b5 et la paire de fous.

Côté adverse. Le roi resté au centre.

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

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

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur des fous actifs en b4 et a6 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1, le roi resté au centre et une pièce en prise (le pion en c4).

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

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nc6 (Développer Nb8) ; ...c5 (Rupture) ; ...d6 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● b5 (2v1)	—
Cases faibles	—	—
Centre	● d4 (3v0), ● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bf1	● Bf1 Non développé (mob. 0)
Bb4		● Bb4 Actif (mob. 7)
Ba6		● Ba6 Actif (mob. 4)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	4 (c1, f1, a1, h1)	3 (b8, a8, h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d4-d5, ● e3-e4, ● f2-f3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1951 BRA Ch – Round 11 – Guimaraes, Sergio Murilo Soares – 0-1 – Vasconcellos, Fernando O – G23 1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. cxd5 Bxf1 9. Nxf1 exd5 10. Ng3 O-O
1951 Hastings5152 – Round 2 – Hooper, David – 1-0 – Donner, Jan-Hein – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. dxe6 Ba6 10. exf7+ Kxf7
1951 Mar del Plata zt – Round 20 – Wexler, Bernardo – 1-0 – Vasconcellos, Fernando O – G198 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Qf3 c6 10. Bb2 Qc7
1951 Moskou ch-URS – Round 1 – Botvinnik, Mikhail – 1-0 – Moiseev, Oleg – G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. b4 d5 9. b5 Bb7 10. cxd5 exd5
1951 Moskou ch-URS – Round 1 – Botvinnik, Mikhail – 1-0 – Novotelnov, Nikolai – G55 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. b3 O-O 9. Bb2 c6 10. Bd3 Bd6
1951 Moskou ch-URS – Round 1 – Moiseev, Oleg – 1-0 – Novotelnov, Nikolai – G50 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. e4 d6 9. Be2 c5 10. e5 Ne8
1951 New York ch-USA – Round 8 – Reshevsky, Samuel – 1-0 – Santasiere, Anthony – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Ba3 Qc8 9. Nh5 Nxh5 10. Qxh5 Qd7
1951 Oxford – Round 4 – Fairhurst, William – 1/2-1/2 – Barden, Leonard – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Qa4 c5 7. a3 Bxc3+ 8. Nxc3 O-O 9. b4 cxd4 10. exd4 d5
1951 Wertheim Memorial – Round 4 – Evans, Larry M – 1/2-1/2 – Fine, Reuben – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. Qb3 c5 8. a3 Ba5 9. Be2 cxd4 10. exd4 d5
1951 Wertheim Memorial – Round 9 – Shainswit, George – 0-1 – Fine, Reuben – G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. Kxf1 exd5 10. Qf3 c6
1951 World Championship 19th – Round 17 – Botvinnik, Mikhail – 0-1 – Bronstein, David I – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. cxd5 Bxf1 9. Nxf1 exd5 10. Ng3 Qd7
1951 YUG Ch 6th – Round 13 – Gligoric, Svetozar – 1-0 – Janosevic, Dragoljub – G73 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. Bd3 c6 9. e4 d6 10. O-O Nbd7
1952 Havana – Round 4 – Evans, Larry M – 1-0 – Prins, Lodewijk – G58 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 Nc6 8. Be2 O-O 9. O-O Bd6 10. b4 Bxf4
1952 Havana – Round 9 – Steiner, Herman – 0-1 – Prins, Lodewijk – G81 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. Qa4+ Kf8 9. Bd2 Bb7 10. cxd5 Nxd5
1952 POL-ch10 – Round 12 – Makarczyk, Kazimierz – 1/2-1/2 – Regedzinski, Teodor – G87 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. cxd5 Bxf1 9. Kxf1 exd5 10. Nf5 g6
1953 Bariloche – Round 1 – Wexler, Francisco – 1-0 – Ader Hausman, Walter – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. Qf3 c6 9. b3 h5 10. cxd5 cxd5
1953 Bariloche – Round 3 – Wexler, Bernardo – 1/2-1/2 – Gonzalez Intelangelo, Gerardo – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 c5 8. d5 exd5 9. exd5 Re8+ 10. Be3 d6
1953 Candidats Tournament – Round 26 – Reshevsky, Samuel – 1/2-1/2 – Keres, Paul – G167 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d6 8. Bd2 c5 9. a3 Ba5 10. d5 exd5
1953 Wenen AUT-URS – Round 1.4 – Averbakh, Yuri L – 1-0 – Mueller, Hans – G2 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 c5 8. d5 e5 9. Nh3 d6 10. e4 Bc8
1954 Hastings5455 – Round 9 – Fairhurst, William – 0-1 – Keres, Paul – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. cxd5 Bxf1 9. Nxf1 exd5 10. Ng3 O-O
1954 POL Ch Lodz POL – Round 1 – Arlamowski, Edward – 1-0 – Gawlikowski, Stanislaw – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. a3 Bxc3+ 8. bxc3 d5 9. cxd5 Bxf1 10. Kxf1 exd5
1954 Prague zt Prague CZE – Round 7 – Filip, Marius Liviu – 1/2-1/2 – Pachman, Ludek – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. Kxf1 exd5 10. g4 g5
1954 World Championship 20th – Round 2 – Botvinnik, Mikhail – 1-0 – Smyslov, Vladimir – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. Kxf1 exd5 10. g4 c6
1954 Zuerich Zurich SUI – Round 9 – Walther, Edgar – 0-1 – Kupper, Josef – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. e4 d6 9. d5 exd5 10. cxd5 Bxf1
1955 Buenos Aires CA – Round 1 – Szabo, Ladislav – 1/2-1/2 – Trifunovic, Petar – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Qa4 c5 7. a3 Bxc3+ 8. Nxc3 O-O 9. dxc5 bxc5 10. Be2 d5
1955 Buenos Aires CA – Round 13 – Lipiniks, Leonardo – 0-1 – Pachman, Ludek – G92 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. dxe6 Ba6 10. exf7+ Kxf7
1955 CSR Ch – Round 8 – Zaruba, Antonin – 1/2-1/2 – Vesely, Jiri – G60 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 Nc6 10. cxd5 Bxe2
1955 Gothenburg Interzonal – Round 9 – Rabar, Bakhtyar Hamasaleh – 1/2-1/2 – Keres, Paul – G79 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. Bd3 d5 9. cxd5 Bxd3 10. Qxd3 exd5
1955 Manhattan CC Ch 5556 – Round 12 – Feuerstein, Arthur – 0-1 – Bisguier, Arthur B – G54 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. Be2 d5 9. cxd5 Bxe2 10. Qxe2 exd5
1955 Moskou ch-URS – Round 1 – Ilivitsky, Georgy A – 1-0 – Keres, Paul – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Nf4 O-O 7. Bd3 c5 8. O-O cxd4 9. exd4 Bxc3 10. bxc3 Qc7
1956 Corr Wch2 – Round 1 – Borsony, Valt – 1/2-1/2 – Jezek, Jaroslav – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. b3 d5 9. Bb2 dxc4 10. bxc4 Nbd7
1956 H 176 – Round ? – Tiemann, Christoph – 0-1 – Stavenhagen, Johannes – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. e5 Bxc3+ 9. bxc3 Ne4 10. f3 Nxg3
1956 Montevideo – Round 1 – Najdorf, Miguel – 1-0 – Ader Hausman, Walter – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. Bd3 d5 9. cxd5 Bxd3 10. Qxd3 exd5
1957 FRG Ch Bad Neuenahr – Round 12 – Behle, Karl-Willi – 1/2-1/2 – Unzicker, Wolfgang – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. cxd5 Bxf1 9. Nxf1 exd5 10. Ng3 Qd7
1957 GBR Ch 44th – Round 7.11 – Wood, Baruch – 1/2-1/2 – Horseman, DG. – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. Be2 c5 9. dxc5 bxc5 10. Bf3 Nc6
1957 Mar del Plata – Round 7 – Lombardy, William J – 0-1 – Keres, Paul – G68 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. dxe6 Ba6 10. exf7+ Kxf7
1957 Minsk zt – Round 10 – Boleslavsky, Isaac – 1-0 – Petrosian, Tigran V – G65 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d6 8. Bd3 e5 9. O-O Bxc3 10. bxc3 Nc6
1957 Reykjavik – Round 1 – Saidy, Anthony – 0-1 – Marszalek, Rafal – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. cxd5 Bxf1 9. Nxf1 Qxd5 10. f3 c5
1957 USA Ch Open 58th – Round 9 – Henin, Charles – 0-1 – Shipman, Walter – G63 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. dxe6 Ba6 10. exf7+ Kxf7
1957 Wageningen zt – Round 7 – Szabo, Ladislav – 1-0 – Troianescu, Octav – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. b3 O-O 9. Qf3 c6 10. g4 Nbd7
1957 World Championship 21th – Round 13 – Botvinnik, Mikhail – 1-0 – Smyslov, Vladimir – G11 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. a4 c5 10. Ba3 dxc4
1957 World Championship 21th – Round 15 – Botvinnik, Mikhail – 1/2-1/2 – Smyslov, Vladimir – G13 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 dxc4 10. bxc4 Nc6
1957 World Championship 21th – Round 7 – Botvinnik, Mikhail – 1/2-1/2 – Smyslov, Vladimir – G6 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 dxc4 10. bxc4 Nc6
1958 BUL Ch – Round ? – Filchev, Rusko – 0-1 – Kolarov, Atanas Stefanov – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. b3 O-O 9. Qf3 c6 10. g4 Ne8
1958 Mar del Plata – Round 9 – Alonso-Lej De Las Casas, Fernando – 1/2-1/2 – Olivera, Alfredo – G66 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 c5 10. dxc5 bxc5
1958 Munich olm fin-A – Round 1 – Dittmann, Sieghart – 0-1 – Matanovic, Aleksandar – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d6 8. Bd2 c5 9. d5 exd5 10. cxd5 Bxf1
1958 Munich olm fin-B – Round 8 – Thorbergsson, Freysteinn – 1-0 – Van Den Broeck, Hans – G77 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. b3 O-O 9. Be2 dxc4 10. bxc4 Nbd7
1958 Portoroz Interzonal – Round 5 – Sherwin, James T – 0-1 – Pachman, Ludek – G43 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. cxd5 Bxf1 9. Kxf1 exd5 10. e5 Ne8
1958 Tashkent ch URS sf – Round ? – Osnos, Viatcheslav – 1/2-1/2 – Peterson, Andrejs – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. b4 Bxc4 9. Bxc4 dxc4 10. Qe2 O-O
1958 Torneo de las Americas 1st – Round 10 – De Greif, Boris – 1-0 – Davila, Edmundo – G51 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. e4 d6 9. Bd3 c5 10. d5 e5
1958 WchT U26 prel-B 05th – Round 1 – Asmundsson, Ingvar – 0-1 – Kolarov, Atanas Stefanov – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. dxe6 Ba6 10. exf7+ Kxf7
1958 Yugoslavia – Round 2 – Geller, Efim P – 1/2-1/2 – Matanovic, Aleksandar – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 c5 7. d5 exd5 8. cxd5 Bxf1 9. Kxf1 O-O 10. e4 Re8
1959 Buenos Aires JM – Round 8 – Palermo, Vicente – 0-1 – Sanguineti, Raúl Carlos – G34 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Qf3 O-O 9. g4 c6 10. g5 Nfd7
1959 FRG Ch Nuerenberg GER – Round 14 – Mandel, Walter – 0-1 – Lehmann, Heinz – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 dxc4 10. bxc4 Nc6
1959 FRG Ch qual 4th – Round 9 – Roehrich, Erwin – 1-0 – Rautenberg, Wilhelm – G18 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 dxc4 10. bxc4 Nc6
1959 Kragujevac ch14-YUG – Round 1 – Stupica, Janez – 1/2-1/2 – Matanovic, Aleksandar – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bb7 7. a3 Bxc3+ 8. bxc3 c5 9. f3 d5 10. cxd5 Qxd5
1959 UKR Ch – Round 9 – Shianovsky, Vladislav I – 1/2-1/2 – Zurakhov, Vladlen Y – G63 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. b3 O-O 9. Bd3 c5 10. O-O cxd4
1959 URS-ch26 – Round 2 – Geller, Efim P – 1-0 – Keres, Paul – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 h5 7. h4 Bb7 8. Bd2 a6 9. Qc2 d5 10. cxd5 Nxd5
1960 Balatonfured it – Round 1 – Sliwa, Bogdan – 1/2-1/2 – Lengyel, Levente – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Qa4 c5 7. a3 Bxc3+ 8. Nxc3 O-O 9. dxc5 bxc5 10. Be2 d5
1960 Leipzig olm fin-A – Round 5 – Kramer, Haije – 1/2-1/2 – Lengyel, Levente – G82 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 dxc4 10. bxc4 Nc6
1960 Leningrad ch-URS – Round 12 – Polugaevsky, Lev – 1-0 – Bronstein, David I – G108 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bf8 7. Ng3 d5 8. Qf3 c6 9. cxd5 cxd5 10. Bxa6 Nxa6
1960 Leningrad tt – Round 7 – Hallerod, Ralph – 0-1 – Zuidema, Coen – G89 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 c5 10. dxc5 dxc4
1960 Olympiad prel III – Round 3 – Haygarth, Michael J – 1/2-1/2 – Kluger, Gyula – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 Nc6 10. cxd5 Bxe2
1960 Paignton Premier 10th – Round 1 – Tanfield, G. – 0-1 – Milner Barry, Philip – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 c5 10. O-O dxc4
1960 Santa Fe – Round 1 – Korchnoi, Viktor – 1-0 – Casabella, Miguel Angel – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Nc6 7. Bd2 Bb7 8. a3 Be7 9. d5 Ne5 10. e4 Ng6
1960 Zonal (Men) Budapest HUN – Round 1 – Mst Raisa, Rahman – 0-1 – Matanovic, Aleksandar – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 c5 10. Bb2 cxd4
1961 Baku ch-URS – Round 14 – Taimanov, Mark E – 1/2-1/2 – Spassky, Boris Vasily – G127 1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Qf3 O-O 9. Be2 c5 10. dxc5 Nbd7
1961 DDR-ch2 – Round ? – Koch, Berthold – 0-1 – Hauschild Kurt – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. e5 Ne4 9. Nxe4 dxe4 10. a3 Bxc3+
1961 Maroczy Memorial – Round 1 – Taimanov, Mark E – 1/2-1/2 – Portisch, Lajos – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 dxc4 10. bxc4 Nc6
1961 Maroczy Memorial Budapest HUN – Round 1 – Bronstein, David I – 1/2-1/2 – Portisch, Lajos – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Qf3 Qd7 9. cxd5 exd5 10. Bxa6 Nxa6
1961 Maroczy Memorial Budapest HUN – Round 1 – Portisch, Lajos – 1/2-1/2 – Kluger, Gyula – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b4 Bxc4 9. Bxc4 dxc4 10. Qe2 c5
1961 Santa Fe – Round 7 – Filip, Marius Liviu – 1-0 – Casabella, Miguel Angel – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. b3 d5 9. Be2 c6 10. O-O Nbd7
1961 Torremolinos – Round 5 – Gligorić, Svetozar – 1-0 – Portisch, Lajos – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. cxd5 Bxf1 9. Kxf1 Qxd5 10. Qd3 Nc6
1961 Zagreb – Round 10 – Rabar, Braslav – 1-0 – Krstev, Krum – G87 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. b3 c5 9. cxd5 Bxf1 10. Kxf1 g5
1962 Hastings II – Round 8 – Hamann, Slawomir – 0-1 – Milner Barry, Philip – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. cxd5 Bxf1 9. Kxf1 exd5 10. Qf3 O-O
1962 Kiev (Ukraine) – Round 4 – Berezhnoy, Viktor – 1-0 – Nikolaevsky, Yuri V – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. b4 c5 9. b5 cxd4 10. exd4 Bb7
1962 URS Team Ch – Round 1 – Krogius, Nikolai V – 1-0 – Veresov, Gavriil – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 Nc6 10. O-O Na5
1962 URS Team Ch – Round 1 – Taimanov, Mark E – 1/2-1/2 – Veresov, Gavriil – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Nc6 7. Bd2 O-O 8. a3 Bxc3 9. Bxc3 d5 10. Qa4 Bb7
1962 Varna olm – Round 1 – Pachman, Ludek – 1-0 – Bolbochan, J. – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bb7 7. Bd3 c5 8. a3 Ba5 9. O-O Bxc3 10. bxc3 h5
1962 Varna olm – Round 11 – Kristjansson, Olafur – 1/2-1/2 – Brinck-Claussen, Bjorn – G222 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Ng3 d5 8. b3 O-O 9. Be2 c5 10. O-O Nc6
1962 Zuerich – Round 10 – Herren, Walter – 1/2-1/2 – Zuidema, Coen – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 dxc4 10. bxc4 Nc6
1963 Sarajevo – Round 3 – Portisch, Lajos – 1-0 – Shamkovich, Leonid – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 Nc6 8. Bd3 d5 9. cxd5 Bxd3 10. Qxd3 exd5
1963 Stevenson Memorial 11th – Round 5 – Brogden, John G – 0-1 – Hecht, Hans-Joachim – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 dxc4 10. bxc4 Nc6
1963 UKR Ch – Round 5 – Berezhnoy, Viktor – 1-0 – Nikolaevsky, Yuri V – G29 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. e4 d6 9. Bd3 e5 10. Nfe2 Nfd7
1964 Magdeburg – Round 5 – Kuettner, Uwe – 0-1 – Liebert, Heinz – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d6 8. Bd3 c5 9. d5 Nbd7 10. O-O Ne5
1964 Punta del Este – Round 2 – Alvarez del Monte, Jose – 0-1 – Sanguineti, Raúl Carlos – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 O-O 8. Be2 d5 9. b3 dxc4 10. bxc4 Nc6
1964 Tel Aviv olm prel – Round 5 – Aguilar Flores, Fidel – 0-1 – Zuidema, Coen – G173 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Qa4 Qe7 7. a3 Bxc3+ 8. Nxc3 Bb7 9. Qc2 c5 10. f3 Nc6
1964 Tel Aviv olm prel – Round 5 – Reshevsky, Samuel – 1-0 – Mashian, Hushang – G174 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Qf3 O-O 9. g4 c6 10. b3 Qc7
1964 UKR Ch – Round 18 – Atamanov, Andrey – 0-1 – Lazarev, Efim M. – G111 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 c5 8. Be2 Nc6 9. d5 exd5 10. cxd5 Bxe2
1965 Aalborg – Round 1 – Holm, Sejer – 1-0 – From, Sigfred – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 c5 8. d5 exd5 9. cxd5 Bxf1 10. Kxf1 Re8
1965 Aalborg – Round 1 – Holm, Sejer – 1/2-1/2 – Hamann, Svend – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d6 8. Bd3 Nc6 9. Be3 Bxc3+ 10. bxc3 Na5
1965 Asztalos Memorial 8th – Round 5 – Flesch, Janos – 1/2-1/2 – Csom, Istvan – G29 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Qa4+ Qd7 9. Qxd7+ Kxd7 10. b3 dxc4
1965 Copenhagen – Round 6 – Taimanov, Mark E – 1/2-1/2 – Hamann, Svend – G59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b4 Bxc4 9. Bxc4 dxc4 10. Qe2 Qd7
1965 New York ch-USA – Round 1 – Addison, Wiliam G – 1/2-1/2 – Fischer, Raphael – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. a4 Nc6 10. Bb2 dxc4
1965 New York ch-USA – Round 7 – Saidy, Anthony – 0-1 – Fischer, Raphael – G15 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Qf3 O-O 9. e4 dxc4 10. Bg5 h6
1965 Zinnowitz 02nd – Round 10 – Ghitescu, Theodor – 1-0 – Liebert, Heinz – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. d5 exd5 9. cxd5 Bxf1 10. Kxf1 Bd6
1966 Asztalos Memorial – Round 3 – Lilienthal, Andor – 1/2-1/2 – Csom, Istvan – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Qf3 c6 9. b3 O-O 10. Bb2 Ne8
1966 Ch (Men) Budapest HUN – Round 13 – Kluger, Gyula – 1-0 – Toth, Bela – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. cxd5 Bxc3+ 9. bxc3 Bxf1 10. Kxf1 exd5
1966 La Habana olm fin-A – Round 11 – Brinck-Claussen, Bjorn – 0-1 – Panno, Oscar – G202 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. Qf3 c6 9. b3 O-O 10. g4 Nfd7
1966 La Habana olm fin-C – Round 13 – Yepez, Olavo – 1/2-1/2 – Schorr Blank, Leon – G86 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 O-O 8. Be2 c5 9. O-O Qc7 10. b3 Nc6
1966 La Habana olm prel – Round 4 – Zinser, Sylvain – 1/2-1/2 – Sanguineti, Raúl Carlos – G132 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Qf3 O-O 9. cxd5 exd5 10. Bxa6 Nxa6
1966 Rio Hondo zt – Round 6 – Panno, Oscar – 1/2-1/2 – Luckis, Marcos – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 Nc6 8. Be3 Bxc3+ 9. bxc3 Na5 10. e5 Ne8
1966 Santa Monica – Round 11 – Portisch, Lajos – 0-1 – Fischer, Robert J – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Qf3 O-O 9. e4 dxe4 10. Nxe4 Nxe4
1966 Venice – Round ? – Tatai, Stefano – 1-0 – Hamann, Svend – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 Nc6 10. a4 dxc4
1967 Budapest Bajnogsag 8th – Round 8 – Eperjesi, Laszlo Dr. – 0-1 – Toth, Bela – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d6 8. Bd2 c5 9. a3 Ba5 10. dxc5 bxc5
1967 Capablanca Memorial – Round 3 – O'Kelly, Albéric de Galway – 1/2-1/2 – Pachman, Ludek – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. f3 h5 9. cxd5 Bxf1 10. Nxf1 Qxd5
1967 DDR Ch 16th – Round 14 – Schmidt, Michael – 1/2-1/2 – Neukirch, Detlef – G68 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Qf3 c6 9. b3 O-O 10. g4 Bb7
1967 DDR Ch 16th – Round 17 – Kollberg, Lothar – 1-0 – Neukirch, Detlef – G88 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 dxc4 10. bxc4 Nc6
1967 DSV-Turnier – Round 7 – Kozma, Julius – 1/2-1/2 – Neukirch, Detlef – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. cxd5 Bxc3+ 9. bxc3 Bxf1 10. Kxf1 exd5
1967 Hoogovens – Round 6 – Meza Pomar, Aroa – 1-0 – Langeweg, Kick – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Qa4 c5 7. a3 Bxc3+ 8. Nxc3 O-O 9. dxc5 bxc5 10. Be2 d5
1967 HUN Ch Budapest HUN – Round 10 – Bokor, Istvan – 0-1 – Toth, Bela – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bb2 Nc6 10. b4 Bxc4
1967 HUN Ch Budapest HUN – Round 17 – Bokor, Istvan – 0-1 – Szilagyi, Peter – G60 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. Qb3 c5 8. a3 Bxc3+ 9. Qxc3 cxd4 10. exd4 d5
1967 IBM – Round 5 – Donner, Jan-Hein – 1/2-1/2 – Hein-Pachman, Ludek – G20 1. d4 e6 2. c4 Bb4+ 3. Nc3 Nf6 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Qf3 O-O 9. cxd5 exd5 10. Bxa6 Nxa6
1967 Moscow – Round ? – Portisch, Lajos – 1-0 – Spassky, Boris V. – G155 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 Nc6 8. Bd3 d5 9. cxd5 Bxd3 10. Qxd3 exd5
1967 Venice – Round 1 – Donner, Jan-Hein – 1-0 – Kupper, Josef – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 dxc4 10. bxc4 Nc6
1967 Winnipeg – Round 6 – Szabo, Ladislav – 1/2-1/2 – Larsen, Benjamin Holsko – G30 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b4 O-O 9. Bb2 Nbd7 10. cxd5 Bxf1
1968 Alma Ata ch-URS – Round 7 – Lein, Anatoly – 1-0 – Tseshkovsky, Vitaly – G70 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Be2 O-O 9. O-O Re8 10. b4 Bxc4
1968 Bamberg – Round 1 – Szabo, Ladislav – 1/2-1/2 – Keres, Paul – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bb7 7. Bd3 Bxg2 8. Rg1 Bb7 9. e4 Nc6 10. a3 Bxc3+
1968 Bamberg – Round 4 – Szabo, Laszlo – 1/2-1/2 – Keres, Paul Petrovich – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bb7 7. Bd3 Bxg2 8. Rg1 Bb7 9. e4 c6 10. a3 Bxc3+
1968 Chacabuco – Round 4 – Schweber, Samuel – 1/2-1/2 – Rubinetti, Jorge – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. Qf3 O-O 9. Be2 c5 10. dxc5 Nbd7
1968 CSR Ch – Round 3 – Kozma, Julius – 0-1 – Pachman, Ludek – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Ba3 Bxc4 9. Bxc4 dxc4 10. O-O Qd7
1968 IBM – Round 11 – Donner, Jan-Hein – 1/2-1/2 – Zuidema, Coen – G37 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. cxd5 Bxc3+ 9. bxc3 Bxf1 10. Kxf1 exd5
1968 It Buesum GER – Round 11 – Donner, Jan-Hein – 1/2-1/2 – Andersen, Borge – G50 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 Nc6 8. Bd3 e5 9. O-O Bxc3 10. bxc3 d6
1968 It Buesum GER – Round 5 – Damjanovic, Mato – 1/2-1/2 – Andersen, Borge – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Be2 Nc6 10. cxd5 Bxe2
1968 Lugano SUI – Round 1 – Kottnauer, Cenek – 0-1 – Ree, Hans – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. Bd3 d5 8. Qe2 c5 9. dxc5 Nbd7 10. cxd5 Bxd3
1968 Manila – Round 13 – Gligorić, Svetozar – 1-0 – Rodriguez, Ruben Jorge – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. f3 O-O 9. cxd5 Bxf1 10. Kxf1 exd5
1968 URS Team Ch – Round ? – Lapienis, Donatas – 0-1 – Lazarev, Efim M. – G213 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d5 8. cxd5 Bxf1 9. Kxf1 exd5 10. Qf3 c6
1968 WchT U26 15. qual-D – Round 3 – McGrillen, Hugh – 0-1 – Keene, Raymond D – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 dxc4 10. bxc4 Nc6
1969 Capablanca Memorial – Round 9 – Donner, Jan-Hein – 1/2-1/2 – Korchnoi, Viktor – G68 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 h5 7. h4 Bb7 8. Bd2 a5 9. a3 Bd6 10. Rh3 Nc6
1969 Leeuwarden ch-NED – Round 11 – Donner, Jan-Hein – 1/2-1/2 – Zuidema, Coen – G49 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. cxd5 Bxc3+ 9. bxc3 Bxf1 10. Kxf1 exd5
1969 Luhacovice – Round 15 – Kozma, Julius – 1/2-1/2 – Blatny, Frantisek – G108 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. a3 Be7 7. Nf4 d6 8. d5 e5 9. Nfe2 Bxc4 10. Qa4+ b5
1969 Luhacovice – Round 3 – Kozma, Julius – 1-0 – Keres, Paul – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 h5 7. Bd3 h4 8. Ne2 h3 9. g3 Bb7 10. O-O Bf3
1969 Schwerin – Round 10 – Wehnert, Lutz – 0-1 – Neukirch, Detlef – G77 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. cxd5 Bxc3+ 9. bxc3 Bxf1 10. Kxf1 exd5
1970 Palma de Mallorca Interzonal – Round 5 – Gligoric, Sofija – 1-0 – Rubinetti, Jorge – G86 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 h5 7. h4 Bxc3+ 8. bxc3 d5 9. Qf3 Bb7 10. Bd3 c5
1970 Vinkovci – Round 4 – Gligoric, Svetozar – 1/2-1/2 – Petrosian, Tigran V. – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Ba3 dxc4 9. e4 Qd7 10. Be2 Nc6
1971 Hoogovens – Round 11 – Najdorf, Miguel – 1/2-1/2 – Donner, Jan Hein – G69 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Ba3 dxc4 9. e4 Qd7 10. Be2 Nc6
1975 URS Team Ch – Round ? – Petrosian, Tigran V. – 1-0 – Butnorius, Algimantas – G127 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. e4 d5 8. cxd5 Bxf1 9. Kxf1 Bxc3 10. bxc3 exd5
1975 URS Team Ch – Round 1 – Lutikov, Anatoly S – 1/2-1/2 – Kupreichik, Viktor D – G129 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 O-O 7. Bd2 d5 8. cxd5 Bxf1 9. Nxf1 Nxd5 10. Nxd5 Bxd2+
Linares 1991 – Round 1 – Speelman, Jon S – 1/2-1/2 – Timman, Jan H – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Qa4 c5 7. a3 Bxc3+ 8. Nxc3 O-O 9. d5 Qe7 10. f3 exd5

E45a — Nimzowitsch

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Ba6

Eval: [+0.33]

Les coups candidats

6.a3 — 66.8% (1793 parties) →

Ambassadeurs : Istratescu, Andrei (9x), Hoi, Carsten (9x), Botvinnik, Mikhail (8x), Sisniega Campbell, Marcel (7x), Burnett, Ronald (7x), Levitt, Jonathan P (7x), Almarza Mato, Carlos (7x), Sowray, Peter J (7x)

6.Ng3 — 29.7% (796 parties) →

Ambassadeurs : Knaak, Rainer (16x), Donner, Jan-Hein (12x), Wahls, Matthias (12x), Portisch, Lajos (10x), Timman, Jan H (9x), Vaisser, Anatoly (9x), Levitt, Jonathan P (6x), Gligoric, Svetozar (6x)

6.Qa4 — 3.1% (82 parties)

Ambassadeurs : Doric, Nedzad (3x), Suba, Mihai (2x), Arkell, Keith C (2x), Bezemer, Arno (2x), Chibukhchyan, Erik (2x), Ustich, Ekaterina (2x), Bullerkotte, Frank (2x), Szabo, Ladislav (1x)

6.Nf4 — 0.4% (10 parties)

Ambassadeurs : Jussupow, Artur (2x), Kochyev, Alexander (2x), Ilivitsky, Georgy A (1x), Keres, Paul (1x), Rendboe, John Filip (1x), Ziska, Bogi (1x), Chandler, Murray G (1x), Toth, Bela (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.a3	6.Ng3	6.Qa4	6.Nf4
<1800	29	66%	34%	—	—
1800-2200	531	73%	23%	3%	1%
2200-2600	1486	67%	29%	3%	0%
2600+	53	47%	49%	4%	—

Évolution par décennie (% des parties)

Décennie	N parties	6.a3	6.Ng3	6.Qa4	6.Nf4
1850s	1	—	100%	—	—
1950s	89	73%	22%	3%	1%
1960s	140	58%	39%	4%	—
1970s	205	50%	48%	1%	1%
1980s	359	61%	37%	2%	1%
1990s	376	63%	33%	3%	—
2000s	516	73%	22%	4%	0%
2010s	746	71%	26%	3%	0%
2020s	252	71%	24%	5%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.a3	71%	71%	-0.0%
6.Ng3	26%	24%	▼ -1.9%
6.Qa4	3%	5%	▲ +1.8%
6.Nf4	0%	0%	+0.1%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 8 parties
Smyslov, Vladimir — 5 parties

Parties historiques

6.a3 — 66.8% (1793 parties)

1951 — Guimaraes, Sergio Murilo Soares vs Vasconcellos, Fernando O — 0-1 — Fortaleza BRA
1951 — Hooper, David vs Donner, Jan-Hein — 1-0 — Hastings ENG
1951 — Moiseev, Oleg vs Novotelnov, Nikolai — 1-0 — Moskou ch-URS
1951 — Pomar Salamanca, Arturo vs Prins, Lodewijk — 0-1 — Bad Pyrmont GER
1951 — Wexler, Bernardo vs Vasconcellos, Fernando O — 1-0 — Mar del Plata ARG

6.Ng3 — 29.7% (796 parties)

1854 — Singleton P vs Casswell — 1-0 — corr England
1951 — Evans, Larry vs Fine, Reuben — 1/2-1/2 — New York, NY USA
1951 — Reshevsky, Samuel vs Santasiere, Anthony — 1-0 — New York, NY USA
1953 — Reshevsky, Samuel vs Keres, Paul — 1/2-1/2 — Zurich SUI
1953 — Wexler, Bernardo vs Gonzalez Intelangelo, Gerardo — 1/2-1/2 — Bariloche

6.Qa4 — 3.1% (82 parties)

1951 — Fairhurst, William vs Barden, Leonard — 1/2-1/2 — Oxford ENG
1954 — Turner, Abe J vs Saidy, Anthony — 1-0 — New Orleans, LA USA
1955 — Szabo, Ladislav vs Trifunovic, Petar — 1/2-1/2 — Buenos Aires ARG
1960 — Sliwa, Bogdan vs Lengyel, Levente — 1/2-1/2 — Balatonfured it
1964 — Aguilar Flores, Fidel vs Zuidema, Coen — 0-1 — Tel Aviv ISR

6.Nf4 — 0.4% (10 parties)

1955 — Ilivitsky, Georgy A vs Keres, Paul — 1-0 — Moskou ch-URS
1978 — Jussupow, Artur vs Kochyev, Alexander — 1/2-1/2 — Ashkhabad (Turkmenistan)
1978 — Jussupow, Artur vs Kochyev, Alexander — 1/2-1/2 — Ashkhabad
1980 — Chandler, Murray G vs Toth, Bela — 1/2-1/2 — La Valetta MLT
1988 — Rendboe, John Filip vs Ziska, Bogi — 1/2-1/2 — Aarhus DEN

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