D97c — Gruenfeld: Russian, Szabo, 8.Be2

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 c6 8.Be2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte c5….

Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes c5, e5 et g5, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Les fous enfermés en g7 et c8.

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

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Attaque sur le roi adverse resté au centre.

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), la case forte g4, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Le fou enfermé en c1 et le roi resté au centre.

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

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

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→c6, f7→g6, h7→g6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● c5 (2v0), ● e5 (2v0), ● g5 (2v0)	● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● e5 (2v0)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Be2	● Be2 Ok (mob. 3)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn f7
Non développées	3 (● c1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5, ● e4-e5	● …c6-c5, ● …e7-e6, ● …e7-e5

Partie
1937 Gothenburg m – Round 1 – Fine, Reuben – 1-0 – Jonsson, Erik – G2 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. Nf3 c6 7. e4 O-O 8. Be2 b5 9. Qb3 Qa5 10. e5 Be6
1937 Kemeri – Round 1 – Landau, Salo – 1-0 – Rellstab, Ludwig – G61 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. e4 c6 7. Nf3 O-O 8. Be2 b6 9. Qa4 Bb7 10. O-O e6
1939 Buenos Aires ol f-A – Round 6 – Luckis, Marcos – 1-0 – Christensen, Alfred – G113 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Nbd7 10. Ng5 Nb6
1939 Buenos Aires ol f-A – Round 6 – Mikenas, Vladas – 1-0 – Enevoldsen, Jens – G114 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Ne8 10. O-O Bg4
1939 Buenos Aires ol f-A – Round 8 – Grau, Roberto G – 1/2-1/2 – Enevoldsen, Jens – G157 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Na6 10. O-O Ne8
1939 Buenos Aires ol f-A – Round 8 – Guimard, Carlos E – 1-0 – Christensen, Alfred – G160 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Na6 10. O-O b5
1939 Buenos Aires ol prel-C – Round 1 – Luckis, Marcos – 1-0 – Calleja Sierra, Jesus – G5 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Nbd7 10. Ng5 Qb6
1939 Kemeri / Riga – Round 1 – Feigin, M. – 1-0 – Szabo, Ladislav – G41 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b6 9. Qd3 Nh5 10. O-O Nd7
1940 Moskou ch-URS – Round 1 – Mikenas, Vladas – 0-1 – Gerstenfeld, Eduard – G64 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nbd7 9. e5 Ne8 10. e6 fxe6
1940 Moskou ch-URS – Round 5 – Dubinin, Peter – 1/2-1/2 – Botvinnik, Mikhail – G131 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. Nf3 O-O 7. e4 c6 8. Be2 Nbd7 9. O-O Nb6 10. Qb3 Be6
1944 Ventnor City – Round 2 – Shainswit, George – 1/2-1/2 – Jackson Edward Schuyler – G5 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b6 9. Qb3 Bb7 10. O-O Nbd7
1945 Mar del Plata – Round 4 – Najdorf, Miguel – 1-0 – Illesco – G13 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nbd7 9. O-O Nb6 10. Qd3 Bg4
1946 JUG Ch – Round 16 – Bidev, Pavle – 0-1 – Gligorić, Svetozar – G45 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b6 9. Bg5 Ba6 10. Qa4 Bxe2
1946 Mar del Plata – Round 19 – Luckis, Marcos – 1/2-1/2 – Maderna, Carlos – G164 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. e4 c6 7. Nf3 O-O 8. Be2 b5 9. Qd3 b4 10. Na4 Ba6
1946 Mar del Plata – Round 2 – Luckis, Marcos – 1-0 – Reinhardt, Enrique – G32 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. e4 c6 7. Nf3 O-O 8. Be2 b6 9. Qa4 Bb7 10. O-O Nfd7
1946 Mar del Plata – Round 4 – Bolbochan, J. – 1/2-1/2 – De Souza Mendes, Joao – G50 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nbd7 9. O-O Nb6 10. Qb3 Be6
1946 Moscow RUS – Round 1 – Lilienthal, Andor – 1-0 – Kamyshov, Mikhail – G14 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 b5 10. O-O a6
1946 Nt – Round 12 – Riedmiller, Max – 1-0 – Endzelins, Lucius – G14 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Qa5 9. b4 Qb6 10. Rb1 Na6
1946 Ostrawa ch CZE – Round 3 – Pachman, Ludek – 1-0 – Potucek, Ludovit – G5 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nbd7 9. O-O Nb6 10. Qd3 Be6
1947 Buenos Aires ch-ARG – Round 1 – Luckis, Marcos – 1-0 – Sanguinetti, Renato – G36 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qd3 b4 10. Na4 Ba6
1947 Leningrad ch-URS – Round 18 – Flohr, Salo – 1-0 – Dubinin, Peter – G164 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nbd7 9. O-O Nb6 10. Qb3 Be6
1947 Lueneburg – Round 2 – Saemisch, Friedrich – 0-1 – Heinicke, Herbert – G2 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 a5 10. e5 Be6
1947 Mar del Plata – Round 14 – Luckis, Marcos – 1/2-1/2 – Sanguinetti, Ricardo – G124 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qd3 Qa5 10. O-O b4
1947 Nt Essen GER – Round 7 – Ernst, Wilhelm – 0-1 – Heinicke, Herbert – G14 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Na6 10. O-O h6
1947 Parnu – Round 1 – Flohr, Salo – 1/2-1/2 – Lilienthal, Andor – G32 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1948 Karlovy Vary – Round 17 – Sajtar, Jaroslav – 0-1 – Barcza, Gedeon – G162 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 a5 9. O-O Na6 10. Qd3 Qc7
1948 Mar del Plata – Round 1 – Luckis, Marcos – 1-0 – Medina-Garcia, Antonio – G13 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nbd7 9. O-O Nb6 10. Qd3 a5
1948 Saltsjobaden Interzonal – Round 13 – Pirc, Vasja – 0-1 – Bronstein, David I – G119 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1948 Saltsjobaden Interzonal – Round 18 – Najdorf, Miguel – 1/2-1/2 – Flohr, Salo – G163 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. O-O b4
1949 BUL Ch – Round 10 – Kolarov, Atanas Stefanov – 1-0 – Karastoichev, Emil – G49 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qd3 Qa5 10. O-O b4
1949 Leningrad – Round 17 – Levenfish, Grigory – 1/2-1/2 – Kopylov, Igor – G125 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 a5 10. Qc2 a4
1949 URS Ch, semi final – Round 15 – Byvshev, Vasily – 1/2-1/2 – Bastrikov, Georgy – G109 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qd3 Qa5 10. Nd2 Rd8
1949 URS Ch, semi final – Round 15 – Pogrebissky, Iosif – 1/2-1/2 – Ilivitsky, Georgy A – G109 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. e4 c6 7. Nf3 O-O 8. Be2 b5 9. Qd3 Qa5 10. O-O b4
1950 OWL Ch – Round 2 – Hantke Rolf – 1-0 – Von Baudissin, Georg Graf – G4 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Na6 9. O-O Be6 10. Qa4 Nc7
1951 Buenos Aires ARG – Round ? – Luckis, Marcos – 0-1 – Benko, Francisco – G2 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 a5 10. Qc2 a4
1952 POL-ch10 – Round 10 – Ciejka, Tadeusz – 1-0 – Witkowski, Stefan – G73 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Qa5 9. O-O b5 10. Qc5 Na6
1953 Bucharest – Round 12 – O'Kelly, Albéric de Galway – 1-0 – Barda, Olaf – G119 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 a5 9. Bf4 Na6 10. Qd3 b5
1959 New York ch-USA – Round 9 – Reshevsky, Samuel – 1-0 – Ault, Robin – G50 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nfd7 9. Bg5 Kh8 10. Rd1 b5
1961 CSR Ch – Round 7 – Trapl, Jindrich – 1/2-1/2 – Dolezal, Jiri – G64 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nbd7 9. e5 Nb6 10. exf6 Nxc4
1961 Debrecen – Round 9 – Banfalvi, Sander – 0-1 – Boleslavsky, Isaac – G59 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. e5 Ne8
1962 Hungary – Round 8 – Forintos, Gyozo V – 1-0 – Bakos, S – G64 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Bg4 9. O-O Bxf3 10. Bxf3 Nfd7
1963 Alekhine Memorial – Round 5 – Vladimirov, Boris T – 1-0 – Liberzon, Vladimir M – G32 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. e5 Be6
1963 Capablanca Memorial – Round 13 – Pachman, Ludek – 1-0 – Haro Garcia, Gilberto – G126 1. Nf3 g6 2. d4 Bg7 3. c4 Nf6 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4 c6 7. e4 O-O 8. Be2 b6 9. Qa4 Bb7 10. O-O Nbd7
1963 Halle zt – Round ? – Johannsson, Ingi R – 1/2-1/2 – Malich, Burkhard, Dr. – G147 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. e4 c6 7. Nf3 O-O 8. Be2 b5 9. Qb3 Qa5 10. O-O b4
1963 Odense – Round 8 – Blom, Kaj – 1-0 – Soby, Frode – G28 1. d4 d5 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Na6 9. O-O Bd7 10. e5 Ne8
1963 Sarajevo – Round 4 – Trifunovic, Petar – 1/2-1/2 – Kozomara, Vlado – G26 1. Nf3 Nf6 2. d4 d5 3. c4 dxc4 4. Qa4+ c6 5. Qxc4 g6 6. Nc3 Bg7 7. e4 O-O 8. Be2 Nbd7 9. O-O Nb6 10. Qd3 Bg4
1964 Budapest ch-HUN – Round 1 – Sapi, Laszlo – 1-0 – Honfi, K. – G80 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. e5 Be6
1964 Chigorin Memorial – Round 2 – Forintos, Gyozo V – 1-0 – Garcia Gonzales, Guillermo – G11 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 e5 10. dxe5 Ng4
1964 Kiev ch-URS – Round 1 – Liavdansky, Vladimir – 1-0 – Bannik, Anatolij – G50 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Bg4 10. Be3 Nbd7
1965 Hastings6566 – Round 5 – Uhlmann, Wolfgang – 1-0 – Lee, Peter N – G22 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 e5 10. dxe5 Ng4
1965 Hungary – Round 1 – Polgar, Istvan – 0-1 – Honfi, K. – G60 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. e4 O-O 7. Be2 c6 8. Nf3 b5 9. Qd3 Qa5 10. Nd2 Rd8
1966 Asztalos Memorial 9th – Round 7 – Uhlmann, Wolfgang – 1/2-1/2 – Navarovszky, Laszlo – G35 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. O-O b4
1966 Hoogovens 28th – Round 13 – Langeweg, Kick – 1/2-1/2 – Bilek, Istvan – G39 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Bg4 9. O-O Nbd7 10. Be3 Bxf3
1966 Kecskemet – Round 4 – Portisch, Lajos – 1/2-1/2 – Hort, Vlastimil – G7 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1966 Kecskemet Laszlo Toth Memorial – Round 3 – Simagin, Vladimir – 1-0 – Honfi, Karoly – G13 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1966 La Habana olm prel – Round 3 – Cappello, Guido – 0-1 – Hort, Vlastimil – G94 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1966 Le Havre – Round 1 – Forintos, Gyozo V – 1-0 – Zinser, Sylvain – G9 1. c4 Nf6 2. Nc3 g6 3. d4 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1966 Zinnowitz – Round 5 – Uhlmann, Wolfgang – 1-0 – Haag, Ervin – G8 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. O-O b4
1967 Asztalos Memorial – Round 2 – Simagin, Vladimir – 1/2-1/2 – Haag, Ervin – G1 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1967 Monte Carlo – Round 1 – Forintos, Gyozo V – 1/2-1/2 – Larsen, Benjamin Holsko – G2 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1967 October Revolution 50 – Round 1 – Vladimirov, Boris T – 0-1 – Osnos, Viatcheslav – G4 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Nbd7 9. O-O Nb6 10. Qd3 Bg4
1967 Sousse Interzonal – Round 1 – Hort, Vlastimil – 1/2-1/2 – Bilek, Istvan – G4 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Bg4 10. Be3 Nbd7
1968 Capablanca Memorial – Round 1 – Antoshin, Vladimir S – 1/2-1/2 – Suetin, Alexey S – G32 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
1968 Corr – Round 1 – Simagin, Vladimir – 1-0 – Boysan, M. – G11 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Be6 10. Qc2 Na6
1969 Monte Carlo – Round 1 – Portisch, Lajos – 1-0 – Honfi, K. – G18 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 a5 10. Qc2 Na6
1969 POL Ch 26th – Round 2 – Szukszta, Janus – 0-1 – Schmidt, Wlodzimierz – G8 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
Biel Interzonal 1993 – Round 4 – Lputian, Smbat – 1-0 – Gluckman, David – G93 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 a5 10. Qc2 b4
Rio de Janeiro Interzonal 1979 – Round 14 – Petrosian, Tigran V – 1-0 – Bronstein, Luis Marcos – G43 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 10. Bd2 b4
SportAccord Blitz 2014 – Round 21.1 – Radjabov, Teimour – 1-0 – Vachier-Lagrave, Maxime – G160 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 Be6 9. Qd3 Na6 10. O-O Qb6

D97c — Russian Szabo

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 c6 8.Be2

Les coups candidats

8…b5 — 45.9% (311 parties)

Ambassadeurs : Tryggestad, Andreas Garberg (7x), Luckis, Marcos (4x), Konig, Paul (4x), Flohr, Salo (3x), Honfi, K. (3x), Forintos, Gyozo V (3x), Haag, Ervin (3x), Uhlmann, Wolfgang (3x)

8…Nbd7 — 16.2% (110 parties)

Ambassadeurs : Dubinin, Peter (2x), Osbun, Erik (2x), Botvinnik, Mikhail (1x), Kramer, George (1x), Issacs, LJ. (1x), Pachman, Ludek (1x), Potucek, Ludovit (1x), Mikenas, Vladas (1x)

8…Be6 — 11.8% (80 parties)

Ambassadeurs : Luckis, Marcos (2x), Enevoldsen, Jens (2x), Christensen, Alfred (2x), Yandemirov, Valeri (2x), Zaballa Zarzosa, Jon (2x), Calleja Sierra, Jesus (1x), Lilienthal, Andor (1x), Kamyshov, Mikhail (1x)

8…b6 — 6.8% (46 parties)

Ambassadeurs : Fernandez Rivero, Karla July (2x), Landau, Salo (1x), Rellstab, Ludwig (1x), Luckis, Marcos (1x), Reinhardt, Enrique (1x), Feigin, M. (1x), Szabo, Ladislav (1x), Shainswit, George (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…b5	8…Nbd7	8…Be6	8…b6
<1800	20	30%	35%	5%	10%
1800-2200	263	38%	17%	14%	7%
2200-2600	186	56%	11%	7%	6%
2600+	13	85%	—	8%	—

Évolution par décennie (% des parties)

Décennie	N parties	8…b5	8…Nbd7	8…Be6	8…b6
1930s	9	22%	—	56%	22%
1940s	38	50%	24%	13%	8%
1950s	18	39%	17%	6%	—
1960s	50	66%	16%	8%	4%
1970s	13	62%	15%	—	—
1980s	14	57%	36%	—	7%
1990s	72	43%	15%	7%	8%
2000s	149	42%	15%	12%	7%
2010s	259	46%	16%	13%	7%
2020s	56	39%	16%	14%	7%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…b5	46%	39%	▼ -6.3%
8…Nbd7	16%	16%	+0.2%
8…Be6	13%	14%	▲ +1.2%
8…b6	7%	7%	+0.2%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 2 parties
Carlsen, Magnus — 1 partie

Parties historiques

8…b5 — 45.9% (311 parties)

1936 — Van den Bosch, Johannes vs Prins, Lodewijk — 1/2-1/2 — Zandvoort II
1937 — Fine, Reuben vs Jonsson, Erik — 1-0 — Goteborg SWE
1946 — Luckis, Marcos vs Maderna, Carlos — 1/2-1/2 — Mar del Plata ARG
1947 — Kraus, Rudolf vs Wolk, Sigmund — 1/2-1/2 — Kirchheim
1947 — Luckis, Marcos vs Sanguinetti, Renato — 1-0 — Buenos Aires ch-ARG

8…Nbd7 — 16.2% (110 parties)

1940 — Dubinin, Peter vs Botvinnik, Mikhail — 1/2-1/2 — Moskou ch-URS
1940 — Mikenas, Vladas vs Gerstenfeld, Eduard — 0-1 — Moskou ch-URS
1945 — Najdorf, Miguel vs Illesco — 1-0 — Mar del Plata ARG
1946 — Kramer, George vs Issacs, LJ. — 1-0 — New York, NY USA
1946 — Pachman, Ludek vs Potucek, Ludovit — 1-0 — Ostrawa ch CZE

8…Be6 — 11.8% (80 parties)

1939 — Luckis, Marcos vs Calleja Sierra, Jesus — 1-0 — Buenos Aires ol pr-C
1939 — Grau, Roberto G vs Enevoldsen, Jens — 1/2-1/2 — Buenos Aires ARG
1939 — Luckis, Marcos vs Christensen, Alfred — 1-0 — Buenos Aires ARG
1939 — Mikenas, Vladas vs Enevoldsen, Jens — 1-0 — Buenos Aires ARG
1939 — Guimard, Carlos E vs Christensen, Alfred — 1-0 — Buenos Aires ARG

8…b6 — 6.8% (46 parties)

1937 — Landau, Salo vs Rellstab, Ludwig — 1-0 — Kemeri LAT
1939 — Feigin, M. vs Szabo, Ladislav — 1-0 — Kemeri / Riga
1944 — Shainswit, George vs Jackson Edward Schuyler — 1/2-1/2 — Ventnor City
1946 — Luckis, Marcos vs Reinhardt, Enrique — 1-0 — Mar del Plata ARG
1946 — Bidev, Pavle vs Gligorić, Svetozar — 0-1 — Zagreb CRO

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