Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v1)	—
Cases faibles	● e4	—
Centre	● d4 (2v1), ● e5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bd3	● Bd3 Actif (mob. 7)
Bb4		● Bb4 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● e3-e4	● …e6-e5

E53f — Nimzo-Indian: Main Line, 7…Nbd7

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nbd7 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu sur l'aile dame (a3 dans 64 % des parties).

Atouts. Les Blancs s'appuient sur un contrôle dominant de b5 et e5 et un fou actif en d3.

Côté adverse. Un mauvais fou en c8.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. a3 (Préparer expansion aile dame — 64 % des parties) ; cxd5 (Capture en d5, Occuper le centre — 22 % des parties) ; Qe2 (9 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter l'avant-poste e4.

Atouts. Les Noirs s'appuient sur un avant-poste en e4.

Côté adverse. Un mauvais fou en c1.

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

Plans. ...Ba5 (35 % des parties) ; ...Bxc3 (Fou actif (mobilité 6) — 15 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 12 % des parties) ; ...dxc4 (Capture en c4, Frapper le centre adverse — 8 % des parties) ; ...a6 (Préparer expansion aile dame — 8 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1932 BCF Ch 25. Major Open – Round 5 – Koltanowski, George – 1-0 – Watts, William Henry – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Qc2 Bxc3 9. bxc3 Qc7 10. Nd2 Rd8
1932 Bern – Round 3 – Johner, Paul – 1-0 – Staehelin, Adolf – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. Rd1 Qe7
1942 Moscow RUS – Round 1 – Ravinsky, Grigory – 0-1 – Ragozin, Viacheslav – G11 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nbd7 8. Ne2 Qe7 9. Qc2 b5 10. b3 bxc4
1945 Moskou ch-URS – Round 1 – Ratner, Boris – 1/2-1/2 – Ragozin, Viacheslav – G66 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nbd7 8. Qe2 a6 9. Rd1 dxc4 10. Bxc4 b5
1946 Moscow RUS – Round 1 – Smyslov, Vladimir – 1-0 – Averbakh, Yuri L – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. dxc5 Bxc3
1946 Moscow RUS – Round 1 – Solntsev, Yury – 0-1 – Lilienthal, Andor – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Bd3 O-O 6. Nf3 c5 7. O-O Nbd7 8. cxd5 exd5 9. Bd2 Re8 10. dxc5 Bxc5
1947 Chigorin Memorial – Round 1 – Pachman, Ludek – 1/2-1/2 – Ragozin, Viacheslav – G73 1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 Bc7 10. Rd1 cxd4
1948 Moskou ch-URS – Round 1 – Ragozin, Viacheslav – 0-1 – Bondarevsky, Igor – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Ne5 dxc4
1948 Moskou ch-URS – Round 13 – Levenfish, Grigory – 0-1 – Taimanov, Mark E – G110 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Qe2 a6 9. dxc5 Nxc5 10. Bc2 Bd7
1948 Moskou ch-URS – Round 5 – Taimanov, Mark E – 1/2-1/2 – Tolush, Alexander – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qe7
1948 URS-ch16 – Round 17 – Ragozin, Viacheslav – 0-1 – Bondarevsky, Igor – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Ne5 dxc4
1949 Budapest-Moscow – Round 1 – Ragozin, Viacheslav – 0-1 – Szabo, Ladislav – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7
1949 Leningrad – Round 1 – Krogius, Nikolai V – 1/2-1/2 – Bondarevsky, Igor – G7 1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nbd7 8. Qe2 a6 9. Rd1 Qe7 10. Bd2 dxc4
1949 Leningrad – Round 4 – Levenfish, Grigory – 1/2-1/2 – Taimanov, Mark E – G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. Bd2 a6 9. b3 Ba5 10. Rc1 Bc7
1949 Moskou ch-URS – Round ? – Levenfish, Grigory – 1/2-1/2 – Lilienthal, Andor – G171 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Bd2 Ba5 9. Rc1 a6 10. b3 Bc7
1949 Moskou ch-URS – Round 1 – Ragozin, Viacheslav – 0-1 – Smyslov, Vladimir – G59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Bd2 cxd4 9. exd4 dxc4 10. Bxc4 Nb6
1950 Moskou ch-URS – Round 1 – Boleslavsky, Isaac – 1-0 – Averbakh, Yuri L – G43 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7
1950 URS Ch sf Leningard – Round 3 – Tolush, Alexander V – 1-0 – Lisitsin, Georgy – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 Nbd7 7. O-O O-O 8. Bd2 a6 9. b3 b6 10. a3 Ba5
1951 Restricted Opening Tournament – Round ? – Anderson, Frank Ross – 1-0 – Shebaylo, John – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 b6 10. cxd5 exd5
1951 URS Ch sf – Round 2 – Gusev, Aleksandr – 1-0 – Ragozin, Viacheslav – G6 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nbd7 8. cxd5 exd5 9. a3 Ba5 10. Qc2 c4
1951 URS Ch sf – Round 6 – Abramovich Furman, Semyon – 1-0 – Taimanov, Mark E – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 a6 10. b3 Bc7
1951 URS Ch sf Leningrad RUS – Round 2 – Alatortsev, Vladimir N. – 1-0 – Tolush, Alexander V – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Bd2 dxc4 9. Bxc4 cxd4 10. exd4 b6
1952 GBR-NLD m – Round 1.8 – Fairhurst, William – 1/2-1/2 – Bouwmeester, Hans – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Ne2 cxd4 9. exd4 dxc4 10. Bxc4 b6
1952 JUG Ch Belgrade YUG – Round 9 – Trifunovic, Petar – 1/2-1/2 – Ivkov, Borislav – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Bxc3 10. Qxc3 b6
1952 Moscow RUS – Round ? – Lilienthal, Andor – 1-0 – Maya Ragozin, Cristhian – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nbd7 7. O-O c5 8. a3 Ba5 9. Qc2 a6 10. Rd1 cxd4
1952 Vienna 5253 – Round ? – Beni, Alfred – 1/2-1/2 – Rabar, Braslav – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. cxd5 exd5 10. Ne2 Bc7
1953 Buenos Aires m – Round 7 – Reshevsky, Samuel – 0-1 – Najdorf, Miguel – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Rd1 dxc4
1953 Buenos Aires m – Round 9 – Reshevsky, Samuel – 1/2-1/2 – Najdorf, Miguel – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7
1953 Candidats Tournament – Round 30 – Szabo, Ladislav – 1-0 – Kotov Lundqvist, Alex – G197 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. a3 cxd4 10. exd4 dxc4
1953 Opatija – Round 1 – Ivkov, Borislav – 0-1 – Pirc, Vasja – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. Rd1 dxc4
1953 Opatija – Round 12 – Ivkov, Borislav – 1/2-1/2 – Rabar, Braslav – G79 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Bd2 a6 10. cxd5 exd5
1953 Opatija – Round 14 – Unzicker, Wolfgang – 1/2-1/2 – Rabar, Braslav – G98 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 dxc4 10. Bxc4 a6
1953 Opatija – Round 3 – Wade, Robert G – 1-0 – Unzicker, Wolfgang – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. dxc5 Bxc3
1954 Belgrade – Round 9 – Bronstein, David I – 1-0 – Gligorić, Svetozar – G81 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O Nbd7 8. cxd5 exd5 9. Bd2 Re8 10. a3 Bxc3
1954 Bucharest – Round 3 – Kluger, Carsten – 0-1 – Furman, Slavomir – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. a3 cxd4 9. exd4 Bxc3 10. bxc3 dxc4
1954 Hastings5455 – Round 5 – Szabo, Ladislav – 1/2-1/2 – Unzicker, Wolfgang – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Rd1 dxc4
1954 Montevideo – Round 8 – Alvarez del Monte, Jose – 0-1 – Najdorf, Miguel – G72 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7
1954 Munich zt – Round 12 – Rabar, Braslav – 1/2-1/2 – Bouwmeester, Hans – G72 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7
1954 Olympiad final A – Round 11 – Gligoric, Sofija – 1/2-1/2 – Filip, Marius Liviu – G113 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 cxd4 9. exd4 dxc4 10. Bxc4 Bxc3
1954 Olympiad prel III – Round 1 – Porath, Yosef – 1/2-1/2 – Pirc, Vasja – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 a6 10. cxd5 exd5
1954 Prague zt – Round 6 – Olafsson, Fridrik – 1-0 – Barcza, Gedeon – G29 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. cxd5 exd5 9. a3 Bxc3 10. bxc3 c4
1954 URS Ch sf Gorky – Round 11 – Bondarevsky, Igor – 1/2-1/2 – Uusi, Gunnar – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. Qe2 a6 9. Rd1 dxc4 10. Bxc4 b5
1955 Buenos Aires CA – Round 11 – Panno, Oscar – 1/2-1/2 – Gligorić, Svetozar – G80 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. cxd5 exd5 9. Bd2 Re8 10. Rc1 a6
1955 Buenos Aires CA – Round 14 – Ivkov, Borislav – 1-0 – Pilnik, Herman – G99 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Bxc3 10. Qxc3 b6
1955 Buenos Aires CA – Round 2 – Pachman, Ludek – 0-1 – Alvarez Martin, Pedro – G17 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. e3 O-O 6. Bd3 d5 7. O-O Nbd7 8. a3 cxd4 9. exd4 dxc4 10. Bxc4 Bxc3
1955 Erfurt – Round 3 – Uhlmann, Wolfgang – 1/2-1/2 – Troianescu, Octav – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. cxd5 exd5 9. a3 Ba5 10. Bd2 a6
1955 Erfurt – Round 8 – Alster, Ladislav – 1/2-1/2 – Troianescu, Octav – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Bxc3 10. Qxc3 c4
1955 Gothenburg Interzonal – Round 12 – Ilivitsky, Georgy A – 1/2-1/2 – Rabar, Bakhtyar Hamasaleh – G107 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qc2 a6 9. cxd5 exd5 10. b3 b5
1955 Gothenburg Interzonal – Round 20 – Ilivitsky, Georgy A – 1/2-1/2 – Filip, Marius Liviu – G186 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Nb6 10. dxc5 Bxc5
1955 Gothenburg Interzonal – Round 3 – Pachman, Ludek – 1/2-1/2 – Unzicker, Wolfgang – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Nb6 10. dxc5 Bxc5
1955 Hastings5556 – Round 9 – Ivkov, Borislav – 1/2-1/2 – Olafsson, Fridrik – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 a6 10. b3 Bxc3
1955 Johannesburg – Round 4 – Wilken, Leon – 0-1 – Euwe, Max – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 cxd4 9. exd4 Bxc3 10. bxc3 dxc4
1955 Mar del Plata – Round 4 – Wexler, Bernardo – 0-1 – Szabo, Ladislav – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 a6 10. Rd1 cxd4
1955 Mar del Plata – Round 4 – Wexler, Bernardo – 0-1 – Szabo, Laszlo – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 a6 10. Rd1 cxd4
1955 Novi Sad – Round 16 – Vospernik, Zdravko – 0-1 – Matanovic, Aleksandar – G118 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. Qe2 a6 9. Rd1 dxc4 10. Bxc4 b5
1955 Novi Sad – Round 2 – Gligorić, Svetozar – 1/2-1/2 – Matanovic, Aleksandar – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. cxd5 exd5 9. Bd2 Re8 10. a3 Bxc3
1955 Novi Sad – Round 6 – Rabar, Braslav – 1-0 – Milic, Borislav – G55 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. Rd1 Bc7
1955 Prague tm – Round 1 – Kozma, Julius – 1/2-1/2 – Szabo, Laszlo – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Rd1 dxc4
1955 Prague tm Prague CZE – Round 3 – Makarczyk, Kazimierz – 0-1 – Florian, Tibor – G19 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Bd2 a6 10. Rc1 dxc4
1955 URS Ch sf – Round 1 – Geller, Efim P – 0-1 – Antoshin, Vladimir S – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 c5 7. O-O Nbd7 8. a3 cxd4 9. exd4 Bxc3 10. bxc3 dxc4
1955 URS Ch sf – Round 1 – Lutikov, Anatoly S – 0-1 – Taimanov, Mark E – G29 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nbd7 8. a3 cxd4 9. exd4 Bxc3 10. bxc3 dxc4
1955 URS Ch sf – Round 10 – Antoshin, Vladimir S – 1-0 – Kholmov, Ratmir D – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Qe2 a6 9. a3 cxd4 10. Nxd5 exd5
1955 USSR – Round 1 – Bannik, Anatolij – 1/2-1/2 – Furman, Slavomir – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nbd7 7. O-O c5 8. Qe2 a6 9. a3 Bxc3 10. bxc3 b5
1955 USSR – Round 1 – Lilienthal, Andor – 1-0 – Amirkhanov, Rinat Sr – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 dxc4 10. Bxc4 Bc7
1956 Candidats Tournament – Round 18 – Geller, Efim P – 0-1 – Szabo, Laszlo – G85 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Rb1 dxc4
1956 Corr Dyckhoff Memorial – Round 1 – Neukirch, Detlef – 1-0 – Schafer Cordova, Daniel Alejandro – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7
1956 Marianske Lazne/Praha – Round 17 – Jezek, Jaroslav – 1-0 – Balanel, Ion – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. cxd5 exd5 9. a3 Ba5 10. Bd2 a6
1956 Moscow olm fin-A – Round 1 – Szabo, Ladislav – 1-0 – Balanel, Ion – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. cxd5 exd5 9. a3 Ba5 10. Bd2 a6
1956 Moscow olm fin-A – Round 10 – Troianescu, Octav – 1/2-1/2 – Porath, Yosef – G163 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Rd1 dxc4
1956 Moscow olm fin-A – Round 2 – Gligorić, Svetozar – 1-0 – Padevsky, Nikola – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 cxd4 9. Nxd5 exd5 10. axb4 dxc4
1956 Olympiad Moscow RUS – Round 7 – Filip, Marius Liviu – 1/2-1/2 – Botvinnik, Mikhail – G25 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Bxc3 10. Qxc3 b6
1956 POL-CSR Warsaw POL – Round 1 – Balcarek, Wiktor – 1-0 – Rejfir, Josef – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 Qe7 10. Bd2 b6
1957 Leningrad Ch – Round 5 – Antoshin, Vladimir S – 1-0 – Estrin, Yakov – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 dxc4 9. axb4 cxd4 10. Bxh7+ Nxh7
1957 URS Ch, semi final – Round 16 – Shiyanovsky, Vladislav Ivanovich – 1/2-1/2 – Geller, Efim P – G145 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Bd2 a6 9. cxd5 exd5 10. Rc1 c4
1958 Jonkoping – Round 2 – Ljungquist, Lennart – 0-1 – Ragozin, Viacheslav – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. cxd5 exd5 9. a3 Ba5 10. Bd2 a6
1958 Munich olm prel – Round 2 – Filip, Miroslav – 1-0 – Keller, Dieter – G44 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. cxd5 exd5 10. Bd2 Re8
1958 Riga ch-URS – Round 1 – Tal, Mikhail – 1-0 – Tolush, Alexander – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Bd3 O-O 7. O-O Nbd7 8. a3 cxd4 9. Nxd5 exd5 10. axb4 dxc4
1958 URS-ch25 – Round ? – Tal, Mikhail – 1-0 – Tolush, Alexander V – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Bd3 O-O 7. O-O Nbd7 8. a3 cxd4 9. Nxd5 exd5 10. axb4 dxc4
1959 Asztalos Memorial 2nd – Round 7 – Dely, Peter – 1-0 – Florian, Tibor – G12 1. c4 e6 2. d4 Nf6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nbd7 8. Qe2 a6 9. cxd5 exd5 10. Ne5 Qc7
1959 Lodz ch POL – Round 7 – Kwapisz, Stanislaw – 1/2-1/2 – Sliwa, Bogdan – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 cxd4 9. exd4 Bxc3 10. bxc3 dxc4
1959 UKR Ch – Round 15 – Savon, Vladimir A – 1/2-1/2 – Stein, Leonid – G110 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 a6 10. b3 Bc7
1961 Buenos Aires CA – Round 7 – Cruz, Raul C. – 1-0 – Alcaraz Suarez, Juan Camilo – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. cxd5 exd5 9. a3 Ba5 10. Ne2 Bc7
1961 FRG Ch Bad Prymont – Round 15 – Hottes, Dieter – 0-1 – Unzicker, Wolfgang – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. cxd5 exd5 10. Bd2 c4
1961 Kiel – Round 2 – Ziewitz, Hans – 0-1 – Skold, Kristian – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 b6 10. cxd5 exd5
1962 Capablanca Memorial – Round 17 – Acevedo Ortega, Rodrigo Andres – 1-0 – Alvarez del Monte, Jose – G165 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Nbd7 5. e3 Bb4 6. Bd3 c5 7. O-O O-O 8. Qc2 cxd4 9. exd4 dxc4 10. Bxc4 Bxc3
1962 Erevan ch-URS – Round 1 – Khodos, German – 1/2-1/2 – Bannik, Anatolij – G39 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nbd7 8. a3 cxd4 9. Nxd5 exd5 10. axb4 dxc4
1962 Gera ch GDR – Round 13 – Bertholdt, Dieter – 1-0 – Csulits, Anton – G28 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. e3 c5 6. Bd3 d5 7. O-O Nbd7 8. a3 cxd4 9. Nxd5 exd5 10. axb4 dxc4
1962 Varna olm – Round 3 – Panno, Oscar – 1-0 – Barcza, Gedeon – G104 1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Nc3 c5 5. e3 d5 6. Bd3 Nbd7 7. O-O O-O 8. cxd5 cxd4 9. exd4 exd5 10. Bg5 Bxc3
1963 Split ol women – Round 11 – Zatulovskaya, Tatiana – 1-0 – Bain, Mary – G29 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nbd7 7. O-O c5 8. a3 Bxc3 9. bxc3 Qc7 10. Qc2 dxc4
1965 Chigorin Memorial – Round 4 – Krogius, Nikolai V – 1/2-1/2 – Unzicker, Wolfgang – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. a4 dxc4
1965 Tallinn ch-URS – Round 1 – Furman, Slavomir – 0-1 – Polugaevsky, Lev – G55 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 dxc4 10. Bxc4 cxd4
1965 Tbilisi – Round 1 – Spassky, Boris V. – 1/2-1/2 – Tal, Mikhail – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nbd7 8. a3 cxd4 9. exd4 Bxc3 10. bxc3 dxc4
1966 Hoogovens – Round 2 – Szabo, Ladislav – 1/2-1/2 – Polugaevsky, Lev – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. a4 dxc4
1966 Hungary – Round 1 – Portisch, Ferenc – 0-1 – Haag, Ervin – G28 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. cxd5 exd5 9. Ne5 Re8 10. Nxd7 Bxd7
1966 La Habana olm fin-A – Round 5 – Olafsson, Fridrik – 1-0 – Acevedo Ortega, Rodrigo Andres – G80 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 Bb4 5. e3 c5 6. Bd3 O-O 7. O-O Nbd7 8. a3 Ba5 9. Bd2 a6 10. Rc1 dxc4
1966 Palma de Mallorca – Round 11 – Portisch, Lajos – 1-0 – Lehmann, Heinz – G66 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 Bxc3 10. bxc3 b6
1966 Palma de Mallorca – Round 13 – Pomar Salamanca, Arturo – 1/2-1/2 – O'Kelly, Albéric de Galway – G76 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 cxd4 10. Nxd4 Ne5
1966 Tbilisi ch-URS – Round 18 – Osnos, Viatcheslav – 0-1 – Lein, Andreas – G164 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 Nbd7 7. O-O O-O 8. a3 Ba5 9. Bd2 a6 10. b3 Bc7
1966 Tbilisi ch-URS – Round 6 – Liberzon, Vladimir M – 0-1 – Polugaevsky, Lev – G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. a4 Qe7
1967 Asztalos Memorial 10th – Round 13 – Szabo, Laszlo – 1/2-1/2 – Barczay, Laszlo – G66 1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 b6
1967 Budva – Round 1 – Kortchnoi, V. – 1/2-1/2 – Tal, Michael – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. Rd1 dxc4
1967 Capablanca Memorial – Round 12 – Abreu Rodriguez, Juan Luis – 0-1 – Polugaevsky, Lev – G106 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. Rd1 dxc4
1967 Capablanca Memorial – Round 12 – Taimanov, Mark E – 1-0 – Barcza, Gedeon – G107 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 dxc4 9. axb4 cxd4 10. Bxh7+ Nxh7
1967 Capablanca Memorial – Round 18 – Gligorić, Svetozar – 1-0 – Barcza, Gedeon – G158 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. a3 Ba5 9. Qc2 cxd4 10. exd4 dxc4
1967 Capablanca Memorial – Round 7 – Letelier Martner, Rene – 0-1 – Smyslov, Vladimir – G62 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Bd2 a6 10. Qe2 Bc7
1967 HUN Ch Budapest HUN – Round 12 – Bokor, Istvan – 1/2-1/2 – Lengyel, Levente – G45 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 a6 10. Rd1 Qe7
1967 Moscow – Round 1 – Gheorghiu, Florin – 1/2-1/2 – Tal, Mikhail – G44 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. Rd1 Qe7
1967 Moscow – Round 1 – Gligorić, Svetozar – 0-1 – Gipslis, Aivars – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 dxc4 10. Bxc4 cxd4
1967 Moscow RUS – Round 10 – Bilek, Istvan – 0-1 – Smyslov, Vladimir – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. a4 Qe7
1967 Sousse Interzonal – Round 6 – Cuellar Alpire, Mariana – 0-1 – Larsen, Benjamin Holsko – G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. cxd5 exd5 9. Bd2 Re8 10. Ne2 Bxd2
1967 URS Team Ch – Round 1 – Furman, Slavomir – 1/2-1/2 – Chesnauskas A – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. a4 Qe7
1967 URS Team Ch – Round 1 – Spassky, B. – 1/2-1/2 – Kortchnoi, V. – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Rd1 dxc4
1967 URS-ch35 – Round 1 – Furman, Slavomir – 1-0 – Butnorius, Algimantas – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. a3 Ba5 9. a4 dxc4 10. Bxc4 cxd4
1967 URS-ch35 – Round 1 – Savon, Vladimir – 1-0 – Rumiancev, Boris – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. cxd5 exd5
1967 Winnipeg – Round 5 – Spassky, Boris Vasily – 1/2-1/2 – Gheorghiu, Florin – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Bd2 a6 10. Rc1 Bc7
1967 Zierikzee ch-NED – Round 5 – Donner, Jan-Hein – 1/2-1/2 – Langeweg, Kick – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Bd2 dxc4 10. Bxc4 cxd4
1968 Buenos Aires – Round 3 – Panno, Oscar – 1-0 – Najdorf, Miguel – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. Rd1 dxc4
1968 Capablanca Memorial – Round 1 – Donner, Jan-Hein – 0-1 – Damjanovic, Mato – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Bxc3 10. Qxc3 c4
1968 Capablanca Memorial – Round 1 – Jimenez Zerquera, Eleazar – 0-1 – Damjanovic, Marko – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Qe2 b6 9. Na4 dxc4 10. Bxc4 cxd4
1968 CSR Ch – Round 14 – Kozma, Julius – 1/2-1/2 – Filip, Miroslav – G125 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qe2 a6 10. a4 Qe7
1968 Hoogovens – Round 9 – Donner, Jan-Hein – 1/2-1/2 – Korchnoi, Viktor – G78 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. cxd5 exd5 10. Ne5 cxd4
1968 HUN-JUG – Round ? – Barczay, Laszlo – 0-1 – Ostojic, Predrag – G9 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Bb4 5. e3 c5 6. Bd3 O-O 7. O-O Nbd7 8. a3 Ba5 9. Qe2 cxd4 10. exd4 dxc4
1968 IBM I – Round 4 – Bouwmeester, Hans – 1-0 – Lengyel, Laszlo – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Bd3 O-O 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Bxc3 10. Qxc3 b6
1968 Lugano ol (Men) qual-A – Round 1 – Rodriguez, Ruben – 0-1 – Polugaevsky, Lev – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. Qc2 dxc4 9. Bxc4 a6 10. a3 Bxc3
1968 Lugano olm - Round 1 - Yanofsky, Daniel Abraham - 1/2-1/2 - Najdorf, Miguel - G101 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O Nbd7 8. a3 Ba5 9. Bd2 a6 10. Qe2 Bc7
1968 Lugano SUI – Round 1 – Gligorić, Svetozar – 1-0 – Yanofsky, Daniel Abraham – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. cxd5 exd5 10. b4 cxb4
1968 Monte Carlo – Round 3 – Zinser, Sylvain – 0-1 – Smyslov, Vladimir – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O Nbd7 8. a3 Ba5 9. Bd2 Bc7 10. b3 dxc4
1968 Netanya-A – Round 11 – Kraidman, Yair – 1/2-1/2 – Ree, Hans – G64 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. Qe2 a6 9. Rd1 Qe7 10. Ne5 dxc4
1968 New York ch-USA – Round 6 – Reshevsky, Samuel – 1-0 – Zuckerman, Bernard – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Nb6 10. Ne2 Bd7
1968 Skopje/Ohrid – Round 1 – Portisch, Lajos – 1-0 – Polugaevsky, Lev – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. cxd5 exd5 9. Qb3 Nb6 10. Nb5 a6
1968 Solingen – Round 1 – Donner, Jan-Hein – 0-1 – Lengyel, Laszlo – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. a3 Ba5 9. cxd5 exd5 10. Bd2 Bc7
1968 Solingen – Round 10 – Wade, Robert G – 0-1 – Damjanovic, Mato – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. a3 Ba5 9. Qc2 dxc4 10. Bxc4 cxd4
1968 Solingen – Round 5 – Lengyel, Laszlo – 1/2-1/2 – Damjanovic, Mato – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. a3 Ba5 9. a4 a6 10. Qe2 Re8
1968 Solingen GER – Round ? – Donner, Jan-Hein – 0-1 – Lengyel, Levente – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. cxd5 exd5 10. Bd2 Bc7
1968 URS Team Ch – Round 1 – Boleslavsky, Isaac – 1-0 – Aguirre Petersson, Felicia – G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nbd7 8. a3 Ba5 9. cxd5 exd5 10. b4 cxb4
1968 URS Team Ch – Round 1 – Ferreyra Reimann, Xiomara – 0-1 – Karpov, Aleksandr – G51 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. cxd5 exd5 9. a3 Ba5 10. Rb1 Bc7
1968 USA Open Aspen – Round 1 – Brandts, Paul – 1/2-1/2 – Byrne, Robert E – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nbd7 8. Qe2 a6 9. a3 Ba5 10. Rd1 dxc4
1969 Sarajevo 12th – Round 15 – Damjanovic, Marko – 1-0 – Barczay, Laszlo – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. cxd5 exd5 9. a3 Ba5 10. b4 cxb4
Las Palmas 1975 – Round 13 – Petrosian, Tigran V. – 1-0 – Debarnot, Roberto – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nbd7 8. cxd5 exd5 9. a3 Bxc3 10. bxc3 c4

E53f — Main Line (1932)

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nbd7

Les coups candidats

8.a3 — 59.1% (236 parties)

Ambassadeurs : Tal, Mikhail (9x), Gligoric, Sofija (9x), Averbakh, Yuri L (7x), Donner, Jan-Hein (7x), Taimanov, Mark (6x), Ivkov, Borislav (5x), Miguel, Nahuel (5x), Rabar, Braslav (5x)

8.cxd5 — 23.3% (93 parties)

Ambassadeurs : Alster, Ladislav (3x), Balanel, Ion (3x), Trifunovic, Petar (3x), Timman, Jan H (3x), Unzicker, Ferdinand, Dr. (3x), Troianescu, Octav (2x), Gligoric, Svetozar (2x), Langeweg, Kick (2x)

8.Qe2 — 10.0% (40 parties)

Ambassadeurs : Szabo, Laszlo (4x), Bannik, Anatolij (3x), Van Baarle, John (2x), Nehmert, Ulrich (2x), Unzicker, Ferdinand, Dr. (2x), Dely, Péter (1x), Flórián, Tibor (1x), Bak, Istvan (1x)

8.Qc2 — 4.3% (17 parties)

Ambassadeurs : Opsahl, Kristoffer (1x), Lambert, Hans (1x), Rodriguez, Ruben (1x), Polugaevsky, Lev (1x), Ilivitsky, Georgy A (1x), Rabar, Braslav (1x), Ortega, Rogelio (1x), Ablanedo Jimenez, Alvaro Alfonso (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.a3	8.cxd5	8.Qe2	8.Qc2
<1800	16	56%	19%	12%	12%
1800-2200	76	47%	26%	11%	11%
2200-2600	88	53%	26%	15%	1%
2600+	3	—	100%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8.a3	8.cxd5	8.Qe2	8.Qc2
1950s	99	59%	22%	13%	2%
1960s	103	70%	18%	10%	2%
1970s	29	76%	17%	3%	3%
1980s	19	47%	42%	5%	5%
1990s	30	67%	23%	—	7%
2000s	46	46%	33%	9%	4%
2010s	61	44%	20%	18%	11%
2020s	12	58%	42%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.a3	44%	58%	▲ +14.1%
8.cxd5	20%	42%	▲ +22.0%
8.Qe2	18%	0%	▼ -18.0%
8.Qc2	11%	0%	▼ -11.5%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Botvinnik, Mikhail — 2 parties
Smyslov, Vladimir — 1 partie
Karpov, Anatoly — 1 partie

Parties historiques

8.a3 — 59.1% (236 parties)

1950 — Boleslavsky, Isaac vs Averbakh, Yuri L — 1-0 — Moscow RUS
1950 — Boleslavsky, Isaac vs Averbakh, Yuri L — 1-0 — Moskou ch-URS
1951 — Anderson, Frank Ross vs Alkelani, Shebli — 1-0 — Toronto CAN
1951 — Abramovich Furman, Semyon vs Taimanov, Mark — 1-0 — Baku AZE
1951 — Petrosian, Tigran A. vs Aarland, Stein Arild — 1/2-1/2 — Ch URS Moscow RUS

8.cxd5 — 23.3% (93 parties)

1951 — Gusev, Aleksandr vs Ragozin, Viacheslav — 1-0 — Ch URS (1/2 final), Lvov UKR
1951 — Trifunovic, Petar vs Pirc, Vasja — 0-1 — Belgrade SRB
1952 — Trifunovic, Petar vs Ivkov, Borislav — 1/2-1/2 — JUG-ch Belgrade YUG
1953 — Hermann, Manfred vs Unzicker, Ferdinand, Dr. — 0-1 — Leipzig GER
1953 — Trifunovic, Petar vs Cruz Filho, Oswaldo — 1-0 — Rio de Janeiro BRA

8.Qe2 — 10.0% (40 parties)

1953 — Rapaka Samuel Paul vs Miguel, Nahuel — 0-1 — Buenos Aires ARG
1953 — Szabo, Laszlo vs Kotov, Alexander — 1-0 — Zurich SUI
1954 — Bondarevsky, Igor vs Uusi, Gunnar — 1/2-1/2 — URS-ch sf Gorky
1954 — Bannik, Anatolij vs Vistaneckis, Isakas — 1/2-1/2 — Ch URS /2 final)
1954 — Szabo, Laszlo vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Hastings ENG

8.Qc2 — 4.3% (17 parties)

1950 — Opsahl, Kristoffer vs Lambert, Hans — 0-1 — Dubrovnik olm
1955 — Ilivitsky, Georgy A vs Rabar, Braslav — 1/2-1/2 — Goteborg SWE
1962 — Ortega, Rogelio vs Ablanedo Jimenez, Alvaro Alfonso — 1-0 — Havana CUB
1968 — Rodriguez, Ruben vs Polugaevsky, Lev — 0-1 — Lugano SUI
1978 — Radzikowska, Krystyna vs Maziarka, Halina — 1-0 — Poland ch30 wmn

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