Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→a3, f2→e3, e3→d4	● f7→e6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v1)	● d5 (3v2)
Cases faibles	—	—
Centre	● e5 (2v1)	● d5 (3v2)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 8)
Ba5		● Ba5 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 1)
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	mobile
Ruptures	● d4-d5	● …e6-e5

E56 — Nimzo-Indian: Main Line, 7…Nc6 8.a3 dxc4 9.Bxc4 Ba5

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6 8.a3 dxc4 9.Bxc4 Ba5 ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Centraliser les pièces (Qd3 dans 46 % des parties).

Atouts. Les Blancs s'appuient sur un contrôle dominant de b5 et e5, un fou actif en c4 et la colonne semi-ouverte c.

Côté adverse. Un mauvais fou en c8 et une pièce en prise (le pion en c5).

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

Plans. Qd3 (Centraliser la dame — 46 % des parties) ; Bd3 (Fou actif (mobilité 10) — 21 % des parties) ; Ne2 (9 % des parties) ; Na4 (9 % des parties) ; Ba2 (Clouer e6, Fou actif (mobilité 5) — 7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu sur l'aile dame (...a6 dans 46 % des parties).

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile dame (3 contre 2), un contrôle dominant de d5, un avant-poste en d5, un fou actif en a5 et la colonne semi-ouverte d.

Côté adverse. Un mauvais fou en c1.

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

Plans. ...a6 (Préparer expansion aile dame — 46 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 34 % des parties) ; ...Qe7 (7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1937 Kemeri – Round 1 – Landau, Salo – 0-1 – Steiner, Endre – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O Nc6 9. a3 Ba5 10. Qd3 a6
1939 New York ch-ACF – Round 1 – Reshevsky, Samuel – 1/2-1/2 – Fine, Reuben – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 c5 6. Bd3 O-O 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Ne2 cxd4
1940 Buenos Aires – Round 1 – Alhuay Grau, Dominick Fabricio – 0-1 – Luckis, Marcos – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 Nc6 7. O-O dxc4 8. Bxc4 O-O 9. a3 Ba5 10. Ne2 cxd4
1951 YUG Ch 7th – Round 16 – Nikolac, Juraj – 1-0 – Karaklajic, Nikola – G133 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1951 YUG Ch 7th – Round 7 – Germek, Milan – 1/2-1/2 – Karaklajic, Nikola – G53 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Na4 cxd4
1953 URS-training – Round 6 – Boleslavsky, Isaac – 1/2-1/2 – Smyslov, Vasily – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1954 Belgrade – Round 8 – Rabar, Braslav – 1/2-1/2 – Ivkov, Borislav – G73 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1954 Bucharest – Round 4 – Furman, Slavomir – 1-0 – Troianescu, Octav – G44 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1955 Gothenburg Interzonal – Round 14 – Ilivitsky, Georgy A – 1/2-1/2 – Bisguier, Arthur B – G128 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. dxc5 Bxc3
1955 Gothenburg Interzonal – Round 21 – Pilnik, Herman – 1/2-1/2 – Bisguier, Arthur B – G199 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1955 Ljubljana – Round 9 – Stahlberg, Gideon – 1-0 – Karaklajic, Nikola – G73 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Ne2 cxd4
1955 Mar del Plata – Round 2 – Wexler, Bernardo – 0-1 – Gligorić, Svetozar – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1955 Novi Sad – Round 12 – Udovcic, Mijo – 1/2-1/2 – Karaklajic, Nikola – G93 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Be2 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1955 Novi Sad – Round 17 – Gligorić, Svetozar – 1/2-1/2 – Karaklajic, Nikola – G122 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1955 Zagreb – Round 2 – Gligorić, Svetozar – 1-0 – Karaklajic, Nikola – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 h6
1956 Budapest Szikra – Round ? – Barcza, Gedeon – 1-0 – Dely, Peter – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. dxc5 Bxc3
1960 Buenos Aires ch-ARG – Round 6 – Aguayo Cruz, Ramon Uriel – 0-1 – Schweber – G37 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Ne2 cxd4
1961 Buenos Aires ch-ARG – Round 4 – Aguayo Cruz, Ramon Uriel – 1/2-1/2 – Obregoso – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O Nc6 9. a3 Ba5 10. Qd3 e5
1961 Maroczy Memorial Budapest HUN – Round 1 – Kluger, Gyula – 1/2-1/2 – Bisguier, Arthur B – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 Qe7
1962 Stockholm Interzonal – Round 20 – Bolbochan, J. – 1/2-1/2 – Bisguier, Arthur B – G176 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1964 Holstebro ch-DEN – Round 1 – Kolvig, Bent – 1/2-1/2 – Larsen, Benjamin Holsko – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Bd3 cxd4
1965 Capablanca Memorial – Round 16 – Lehmann, Heinz – 0-1 – Ivkov, Borislav – G158 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 Qe7
1965 HUN-ch21 – Round 1 – Portisch, Ferenc – 1/2-1/2 – Dely, Peter – G29 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Ne5 Qc7
1966 Hungary – Round 7 – Gasztonyi, Endre – 1-0 – Dely, Peter – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Ne2 Bb6
1967 Capablanca Memorial – Round 6 – Taimanov, Mark E – 0-1 – Larsen, Benjamin Holsko – G51 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1967 Dundee – Round 8 – Gligorić, Svetozar – 1-0 – Larsen, Bent Ravn – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1967 Dundee Centenary – Round 1 – Gligoric, Svetozar – 1/2-1/2 – O'Kelly de Galway, Alberic – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 d5 7. O-O O-O 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1967 Oxford ch-BCF – Round 2 – Haygarth, Michael J – 1/2-1/2 – Golombek, Harry – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 Nc6 7. O-O O-O 8. a3 dxc4 9. Bxc4 Ba5 10. Ne2 cxd4
1967 Skopje – Round 16 – Damjanovic, Marko – 1/2-1/2 – Dely, Peter – G123 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. e3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Ne5 Qc7
1967 Sochi – Round 4 – Bogdanovic, Rajko – 1/2-1/2 – Damjanovic, Marko – G39 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. e3 d5 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Ne5 Qc7
1967 Sousse Interzonal – Round 21 – Gligoric, Sofija – 1/2-1/2 – Larsen, Benjamin Holsko – G194 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1968 Bucharest – Round 1 – Gheorghiu, Florin – 1-0 – Wade, Robert G – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1968 Candidats qf3 – Round 1 – Portisch, Lajos – 1/2-1/2 – Larsen, Benjamin Holsko – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1968 Candidats qf3 – Round 3 – Portisch, Lajos – 0-1 – Larsen, Benjamin Holsko – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1968 Candidats qf3 – Round 7 – Portisch, Lajos – 1-0 – Larsen, Benjamin Holsko – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O Nc6 9. a3 Ba5 10. Qd3 a6
1968 Hoogovens – Round 13 – Portisch, Lajos – 1-0 – Karaklajic, Nikola – G113 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 O-O 8. O-O Nc6 9. a3 Ba5 10. Qd3 h6
1968 Hungary – Round 1 – Farago, Ivan – 1/2-1/2 – Haag, Ervin – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1968 IBM I – Round 12 – Donner, H. – 1/2-1/2 – Lengyel, Laszlo – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Bd3 cxd4
1968 Lugano ol (Men) qual-F – Round 1 – Ojanen, Kaarle S – 1-0 – Johansson, Martin 1979 – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Bd3 O-O 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Bd3 h6
1968 Lugano olm - Round 1 - Jimenez Zerquera, Eleazar - 0-1 - Johannsson, Ingi R - G95 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1968 Lugano olm - Round 1 - Toran Albero, Roman - 1/2-1/2 - Bouwmeester, Hans - G97 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Bd3 cxd4
1968 Lugano olm - Round 1 - Visier Segovia, Fernando - 1/2-1/2 - Kristinsson, Jon - G93 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Ne2 Bb6
1968 Lugano SUI – Round 2 – Sanguineti, Raúl Carlos – 1/2-1/2 – Johansson, Martin 1979 – G62 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Ba2 Bb6
1968 Skopje/Ohrid – Round 6 – Gligorić, Svetozar – 1-0 – Ilievski, Borce – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1968 Skopje/Ohrid – Round 8 – Gligorić, Svetozar – 1/2-1/2 – Gheorghiu, Florin – G64 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1968 Solingen – Round 10 – Donner, Jan-Hein – 1/2-1/2 – O'Kelly de Galway, Alberic – G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 Qe7
1968 Solingen – Round 14 – Donner, Jan-Hein – 1-0 – Wade, Robert G – G61 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Bd3 Bd7
1968 Solingen GER – Round 7 – Lehmann, Heinz – 1-0 – Wade, Robert G – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 d5 6. Be2 O-O 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1968 USA Open Aspen – Round 1 – Sherwin, James T – 1-0 – Wood, Nick – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 cxd4
1968 Vinkovci – Round 9 – Ivkov, Borislav – 1-0 – Wade, Robert G – G51 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1969 Amsterdam AMRO Open – Round ? – Lenstra, Wiebe – 0-1 – Langeweg, Kick – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1969 Capablanca Memorial – Round 12 – Pomar Salamanca, Arturo – 0-1 – Parma, Bruno – G87 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1969 Capablanca Memorial – Round 8 – Panno, Oscar – 1/2-1/2 – Parma, Bruno – G59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1969 Hoogovens – Round 15 – Portisch, Lajos – 1/2-1/2 – Benko, Pal – G125 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1969 Hoogovens – Round 2 – Portisch, Lajos – 0-1 – Olafsson, Fridrik – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1969 Hungary – Round 1 – Portisch, Lajos – 1-0 – Haag, Ervin – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1969 IBM – Round 10 – Portisch, Lajos – 1-0 – Langeweg, Kick – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 Qe7
1969 Ljubljana – Round ? – Gligorić, Svetozar – 1/2-1/2 – Unzicker, Wolfgang – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1969 Moskou ch-URS – Round 1 – Taimanov, Mark E – 1/2-1/2 – Polugaevsky, Lev – G44 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1969 Netanya – Round 2 – Reshevsky, Samuel – 1-0 – Damjanovic, Marko – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6
1969 New York ch-USA – Round 1 – Reshevsky, Samuel – 1-0 – Burger, Kim – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Bd3 Qe7
1969 Olot – Round 9 – Pomar Salamanca, Arturo – 1/2-1/2 – O'Kelly, Albéric de Galway – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1969 Palma de Mallorca – Round 1 – Korchnoi, Viktor – 1/2-1/2 – Najdorf, Miguel – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1969 Villa Gesell tt – Round 1 – Luckis, Marcos – 0-1 – Garcia Rodriguez, Raimundo – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1970 IBM – Round 6 – Gligoric, Svetozar – 0-1 – Polugaevsky, Lev – G55 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Na4 cxd4
1970 Palma de Mallorca Interzonal – Round 17 – Gligoric, Svetozar – 1/2-1/2 – Polugaevsky, Lev – G94 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1970 Palma de Mallorca Interzonal – Round 17 – Taimanov, Mark – 0-1 – Mecking, Henrique – G92 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1970 Palma de Mallorca Interzonal – Round 5 – Portisch, Lajos – 0-1 – Polugaevsky, Lev – G103 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
1970 Vinkovci – Round 1 – Taimanov, Mark – 1-0 – Parma, Bruno – G37 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Be2 6. ... O-O 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1970 Vinkovci – Round 3 – Taimanov, Mark – 1-0 – Parma, Bruno – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1971 Hoogovens – Round 12 – Gligoric, Svetozar – 1/2-1/2 – Langeweg, Kick – G72 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1971 Moscow – Round 13 – Byrne, Robert – 1/2-1/2 – Parma, Bruno – G74 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1971 Moscow – Round 6 – Tukmakov, Vladimir B – 1/2-1/2 – Gheorghiu, Florin – G75 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
1972 Skopje ol (Men) fin-A – Round 7 – Bisguier, Arthur Bernard – 1/2-1/2 – Medina-Garcia, Antonio – G91 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 c5 6. Bd3 O-O 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 cxd4
41. Olympiad Open 2014 – Round 6.4 – Kotsur, Pavel – 0-1 – Bruzon Batista, Lazaro – G441 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Bd3 h6
FIDE Grand Swiss 2025 – Round 5 – Theodorou Nikolas – 1/2-1/2 – Nepomniachtchi Ian – G243 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 O-O 8. O-O Nc6 9. a3 Ba5 10. Bd3 h6
FIDE World Cup 2025 – Round R3 Rapid 1 – Vachier-Lagrave Maxime – 1/2-1/2 – Vladislav Artemiev – G502 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 a6 6. a4 d6 7. O-O O-O 8. Bg5 h6 9. Bh4 Nd4 10. Nxd4 Bxd4
FIDE World Rapid Championship 2025 – Round 13 – Samuel Sevian – 1-0 – Nepomniachtchi Ian – G247 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. dxc5 Bxc3
Madrid 1973 – Round 15 – Portisch, Lajos – 1/2-1/2 – Furman, Slavomir – G28 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
Moskou ch-URS 1973 – Round 1 – Korchnoi, Viktor – 1/2-1/2 – Polugaevsky, Lev – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Qd3 a6
Moskou ch-URS 1973 – Round 1 – Taimanov, Mark E – 1/2-1/2 – Karpov, Anatoly – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Ba2 a6
Superbet Chess Classic Romania 2025 – Round 3 – So Wesley – 1/2-1/2 – Duda Jan-Krzysztof – G14 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O Nc6 9. a3 Ba5 10. Bd3 h6
World Blitz 2016 – Round 3.34 – Firouzja, Alireza – 1/2-1/2 – Nguyen, Ngoc Truong Son – G122 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 Ba5 10. Ne2 cxd4
World Blitz 2023 – Round 19.18 – Saini Vidit – 0-1 – Daneshvar, Bardiya – G1072 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O Nc6 9. a3 Ba5 10. h3 a6

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