B51m — Sicilian: Moscow 3…Nc6 4.O-O

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur un fou actif en b5 et la paire de fous.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. Nbd2 (Développer Nb1) ; d3 (Libérer Bc1) ; h3 (Empêcher ...Bg4) ; c3 (Préparer d4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur les cases fortes b4, d4 et e5, un avant-poste en e5 et la paire de fous.

Côté adverse. Le fou enfermé en c1.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier g8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nf6 (Développer Ng8) ; ...Bg4 (Développer Bc8, clouer Nf3) ; ...Bb4 (Développer Bf8) ; ...c4 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● d6→c5, e7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● b4 (2v0), ● d4 (2v1), ● e5 (2v1)
Cases faibles	—	—
Centre	● d5 (1v0)	● d4 (2v1), ● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb5	● Bb5 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	—	● knight c6
Non développées	3 (b1, c1, a1)	5 (g8, c8, f8, a8, h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c2-c3, ● d2-d3, ● e4-e5	● …c5-c4, ● …d6-d5, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5

Partie
1947 Chigorin Memorial – Round 1 – Sokolsky, Alexey – 0-1 – Botvinnik, Mikhail – G55 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Nf6 9. Bg5 Be7 10. Rd1 O-O
1947 Nt – Round 5 – Wildschuetz Theo – 1-0 – Rellstab, Ludwig – G15 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O g6 5. d4 cxd4 6. Qxd4 f6 7. Be3 a6 8. Bxc6+ bxc6 9. Qd2 Bg7 10. Nc3 f5
1947 Schlechter Memorial – Round 4 – Gereben, Erno – 1/2-1/2 – Mueller, Hans – G14 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Nf6 5. e5 dxe5 6. Nxe5 Bd7 7. Bxc6 Bxc6 8. Nxc6 bxc6 9. d3 e6 10. Na3 Be7
1948 Mar del Plata – Round 4 – O'Kelly, Albéric de Galway – 1-0 – Najdorf, Miguel – G39 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. b3 Bg4 7. Bb2 e6 8. d3 Nf6 9. Nbd2 Be7 10. e5 dxe5
1948 Moskou ch-URS – Round 2 – Aronin, Lev – 0-1 – Kotov Lundqvist, Alex – G24 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Be7 9. Rd1 Qc7 10. Nc3 a5
1949 Leningrad – Round 15 – Ravinsky, Grigory – 1-0 – Ufimtsev, Artemiy – G111 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O e5 5. c3 Bg4 6. d4 Qb6 7. Bxc6+ Qxc6 8. Nxe5 dxe5 9. Qxg4 exd4 10. cxd4 cxd4
1949 Moskou ch-URS – Round 1 – Aronin, Lev – 1/2-1/2 – Goldberg, Grigory A – G93 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Nf6 5. Qe2 e5 6. c3 Bg4 7. d3 Be7 8. Nbd2 O-O 9. h3 Bh5 10. Re1 Ne8
1949 Moskou ch-URS – Round 1 – Liublinsky, Victor – 0-1 – Taimanov, Mark E – G91 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Nf6 5. Qe2 e5 6. d3 Be7 7. Nbd2 O-O 8. Bxc6 bxc6 9. Nc4 Ne8 10. Qe1 Nc7
1949 Moskou ch-URS – Round 1 – Sokolsky, Alexey – 1-0 – Kotov Lundqvist, Alex – G92 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Nf6 9. Rd1 Be7 10. Bg5 O-O
1950 Amsterdam – Round 6 – O'Kelly, Albéric de Galway – 0-1 – Najdorf, Miguel – G73 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Nf6 5. Re1 e5 6. c3 Bd7 7. d4 Qc7 8. Bg5 Be7 9. Bxf6 Bxf6 10. dxc5 dxc5
1950 Bled – Round 7 – Milic, Borislav – 1/2-1/2 – Pirc, Vasja – G39 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bxf3 6. Qxf3 Nf6 7. e5 dxe5 8. Bxc6+ bxc6 9. Qxc6+ Nd7 10. d3 e6
1950 Mar del Plata – Round 8 – Trifunovic, Petar – 1-0 – Sanguinetti, Ricardo – G69 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Be7 9. Rd1 h6 10. Na3 Be6
1950 Moscow Ch – Round 1 – Bonch-Osmolovsky, Mikhail – 1/2-1/2 – Petrosian, Tigran A. – G16 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Nf6 9. Rd1 Qc7 10. c4 Nd7
1950 Moskou ch-URS – Round 1 – Boleslavsky, Isaac – 0-1 – Aronin, Lev – G67 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. c3 Nf6 6. Re1 a6 7. Bxc6+ bxc6 8. d3 e6 9. Nbd2 Nd7 10. Qa4 Qb6
1950 Moskou ch-URS – Round 1 – Sokolsky, Alexey – 0-1 – Aronin, Lev – G66 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. c3 Nf6 6. Re1 Qb6 7. Na3 e6 8. Ba4 Be7 9. Nc4 Qc7 10. d3 O-O
1950 URS Ch sf – Round 5 – Aronin, Lev – 0-1 – Soloviev, Vladimir A – G8 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. c3 a6 6. Bxc6+ bxc6 7. h3 Bh5 8. d3 e6 9. Nbd2 Nf6 10. Re1 Nd7
1950 URS Ch sf Leningard – Round 5 – Abramov, Lev – 0-1 – Lisitsin, Georgy – G6 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Nf6 5. Nc3 e5 6. Re1 a6 7. Bxc6+ bxc6 8. d3 Be7 9. Ne2 O-O 10. Ng3 Ne8
1951 HUN Ch 07th – Round 18 – Szilagyi, Gyorgy Laszlo – 0-1 – Szabo, Laszlo – G7 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Nxd4 e5 8. Nb3 Nf6 9. Qd3 Be7 10. Bg5 O-O
1951 Mar del Plata zt – Round 12 – Flores Alvarez, Rodrigo – 1-0 – De Souza Mendes, Joao – G118 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O e5 5. c3 Nf6 6. d4 Bd7 7. Qe2 Qc7 8. dxc5 dxc5 9. Na3 a6 10. Bc4 Be7
1952 Moscow Ch – Round 11 – Chistiakov, Alexander – 0-1 – Kotov Lundqvist, Alex – G60 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. c3 Nf6 6. Re1 e6 7. d3 Nd7 8. Nbd2 Be7 9. Bxc6 bxc6 10. Qa4 Bxf3
1952 Moskou ch-URS – Round 1 – Kasparian, Genrikh – 1-0 – Bronstein, David I – G94 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bh5 6. c3 Qb6 7. Na3 a6 8. Be2 e6 9. d3 Nf6 10. Nh2 Bg6
1953 Bucharest – Round 16 – O'Kelly de Galway, Alberic – 1/2-1/2 – Smyslov, Vladimir – G156 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. Re1 Bg4 7. h3 Bh5 8. d3 e6 9. Nbd2 Nf6 10. e5 dxe5
1953 Bucharest – Round 3 – O'Kelly, Albéric de Galway – 1/2-1/2 – Sajtar, Jaroslav – G33 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. Re1 e6 7. b3 d5 8. Nc3 Nf6 9. d3 Be7 10. Bg5 O-O
1953 Bucharest – Round 9 – Milev, Zdravko – 1-0 – Troianescu, Octav – G90 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Be7 9. Rd1 Be6 10. c4 Qc7
1953 URS-training – Round 8 – Boleslavsky, Isaac – 1-0 – Petrosian, Tigran A. – G28 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. c3 Nf6 6. h3 Bh5 7. d4 a6 8. Bxc6+ bxc6 9. Qa4 Qb6 10. dxc5 Qb5
1954 Kiev ch-URS – Round 1 – Bannik, Anatolij – 1/2-1/2 – Furman, Slavomir – G93 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bh5 6. d3 Qb6 7. Bxc6+ Qxc6 8. Re1 e6 9. Nbd2 Be7 10. Nf1 Bg6
1954 Mar del Plata – Round 1 – Rossetto, Hector – 1-0 – De Souza Mendes, Joao – G11 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O e5 5. c3 Nf6 6. Re1 Bd7 7. d4 Qc7 8. dxc5 dxc5 9. Nbd2 Be7 10. Nc4 O-O
1954 Munich zt – Round 17 – Lokvenc, Josef – 1/2-1/2 – Unzicker, Wolfgang – G110 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. e5 d5 7. d3 Bg4 8. h3 Bxf3 9. Qxf3 e6 10. Nc3 Ne7
1954 New York ch-USA – Round 3 – Rossolimo, Nicolas – 1/2-1/2 – Burger, Kim – G11 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Nf6 5. e5 dxe5 6. Nxe5 Qc7 7. d4 e6 8. Bf4 Bd6 9. Nd2 O-O 10. Bxc6 bxc6
1954 URS Ch, semi final – Round 1 – Shishov, Maxim Al – 1/2-1/2 – Ilivitsky, Georgy A – G42 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d3 g6 7. Qe2 f6 8. Ne1 Bg7 9. f4 Nh6 10. f5 O-O
1954 URS Team Ch – Round 7 – Shishov, Mikhail – 1/2-1/2 – Furman, Semyon – G120 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bh5 6. Bxc6+ bxc6 7. d3 e6 8. Nbd2 Nf6 9. Re1 Nd7 10. Nf1 Be7
1955 Hamburg – Round 12 – Pfeiffer, Gerhard – 1/2-1/2 – Kieninger, Georg – G93 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O a6 5. Bxc6+ bxc6 6. h3 e5 7. c3 Nf6 8. Re1 Be7 9. d4 Qc7 10. dxe5 dxe5
1955 Ljubljana – Round 14 – Paoli, Enrico – 1-0 – Bogdanovic, Rajko – G119 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O g6 5. c3 Bg7 6. d4 cxd4 7. cxd4 a6 8. Be2 Nf6 9. Nc3 O-O 10. d5 Nb8
1956 Ilford Premier – Round 3 – Clarke, Peter H – 0-1 – Kottnauer, Cenek – G5 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O e6 5. c3 Nf6 6. Re1 a6 7. Ba4 b5 8. Bb3 Bb7 9. d4 Be7 10. Nbd2 O-O
1956 Moscow – Round 1 – Kasparian, Genrikh – 1-0 – Gufeld, Eduard – G10 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. Bxc6+ bxc6 6. d3 g6 7. h3 Bxf3 8. Qxf3 Qc7 9. Qg3 Bg7 10. f4 Nf6
1956 URS Ch sf – Round ? – Kholmov, Ratmir D – 1/2-1/2 – Borisenko, Georgy K – G60 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bh5 6. c3 Qb6 7. Na3 Nf6 8. Re1 e6 9. Qa4 Bxf3 10. Nc4 Qc7
1956 URS Ch, semi final – Round 11 – Gufeld, Eduard – 1/2-1/2 – Zurakhov, Vladlen Y – G87 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bh5 6. Bxc6+ bxc6 7. d3 e5 8. Nbd2 f6 9. c3 Ne7 10. d4 cxd4
1956 YUG-GER – Round 2.4 – Pfeiffer, Gerhard – 0-1 – Pirc, Vasja – G12 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bg4 5. h3 Bxf3 6. Qxf3 e6 7. c3 Ne7 8. d3 Ng6 9. Qe2 Be7 10. f4 O-O
1957 WchT U26 04th – Round 13.3 – Kajaste, Pentti – 0-1 – Padevsky, Nikola – G169 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Qc7 5. Nc3 e6 6. Re1 Nf6 7. d4 cxd4 8. Nd5 Qd8 9. Nxd4 Bd7 10. Bg5 h6
1958 Kiev Ch – Round 2 – Rojter – 0-1 – Boleslavsky, Isaac – G8 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Be7 9. Rd1 Qc7 10. Na3 f5
1958 New York ch-USA – Round 10 – Lombardy, William J – 1-0 – Evans Lianda – G49 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 f6 9. Rd1 Be6 10. Nc3 Qc7
1958 New York ch-USA – Round 4 – Lombardy, William J – 0-1 – Byrne, David – G18 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Qb6 5. a4 a6 6. Bxc6+ bxc6 7. d3 e5 8. Nbd2 Qd8 9. c3 Ne7 10. d4 cxd4
1958 YUG Ch 13th – Round 9 – Milic, Borislav – 1/2-1/2 – Sofrevski, Jovan – G52 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bg4 5. h3 Bh5 6. c3 Qb6 7. Be2 Nf6 8. d3 e6 9. Nbd2 d5 10. exd5 Nxd5
1959 Clare Benedict Cup 06th – Round 3.1 – Keller, Dieter – 1-0 – Beni, Alfred – G18 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Be7 9. Rd1 h6 10. Na3 Be6
1960 Berg en Dal zt – Round 2 – Barendregt, Johan – 1-0 – Ojanen, Kaarle S – G2 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Ne7 9. Rd1 Ng6 10. Na3 d5
1960 It Bad Salzungen GER – Round 2 – Popov, Vladimir – 0-1 – Lengyel, Levente – G7 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bg4 5. d3 e6 6. h3 Bh5 7. Re1 Rc8 8. Nbd2 a6 9. Bxc6+ Rxc6 10. Nf1 Bxf3
1960 Leningrad tt – Round 11 – Gurgenidze, Bukhuti – 0-1 – Krajcsovits, Marton – G151 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. d3 e6 6. Nbd2 Be7 7. h3 Bh5 8. Re1 Qb6 9. Bxc6+ Qxc6 10. Nf1 Nf6
1960 Ljubljana ch-YUG – Round 15 – Knezevic, Milorad – 1/2-1/2 – Parma, Bruno – G9 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bg4 5. c3 Nf6 6. h3 Bh5 7. Qa4 Qb6 8. Na3 Bxf3 9. gxf3 a6 10. d4 Rc8
1960 UKR Ch sf – Round 16 – Kostiuchenko, Alexander – 1-0 – Zurakhov, Vladlen Y – G100 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bh5 6. Re1 a6 7. Bxc6+ bxc6 8. e5 d5 9. g4 Bg6 10. e6 Nf6
1961 Katowice ch18-POL – Round 15 – Grabczewski, Romuald – 1-0 – Bednarski, Jacek B – G85 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d3 e5 7. Na3 Bg4 8. h3 Bh5 9. Nc4 Ne7 10. c3 Bxf3
1961 Vrnjacka Banja ct women – Round 7 – Gaprindashvili, Nona – 1-0 – Borisenko-Belova, Valentina – G36 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bg4 5. Re1 Qb6 6. Be2 Nf6 7. d3 g6 8. Nbd2 Qc7 9. Nc4 Bxf3 10. Bxf3 Bg7
1961 Zuerich – Round 10 – Bhend, Edwin – 0-1 – Lombardy, William J – G50 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d3 e5 7. Ne1 Ne7 8. Nc3 Ng6 9. Kh1 Be7 10. f3 Be6
1962 Moscow RUS – Round 1 – Larsen, Benjamin Holsko – 1-0 – Bronstein, David I – G14 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bxf3 6. Qxf3 e6 7. d3 Ne7 8. Bg5 Qd7 9. c3 a6 10. Ba4 Ng6
1962 Spartak Ch – Round 12 – Bannik, Anatolij – 1-0 – Platonov, Igor V – G92 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. Re1 e6 6. h3 Bh5 7. d3 Be7 8. Nbd2 Nf6 9. Bxc6+ bxc6 10. g4 Bg6
1964 Clare Benedict Cup 11th – Round 2 – Barendregt, Johan – 1/2-1/2 – Mohrlok, Dieter – G6 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Qc7 9. Nbd2 Nf6 10. Nc4 Be7
1966 Harrachov U26 – Round 1 – Plachetka, Jan – 1/2-1/2 – Trapl, Jindrich – G2 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. d3 Qb6 6. a4 a6 7. Bxc6+ Qxc6 8. Nbd2 g6 9. h3 Bxf3 10. Qxf3 Bg7
1966 Kislovodsk – Round 11 – Fuchs, Reinhart – 1/2-1/2 – Tal, Mikhail – G60 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bh5 6. c3 e6 7. d4 Qa5 8. Na3 a6 9. Be2 Nf6 10. d5 Bxf3
1967 It II Beverwijk NED – Round 11 – Keller, Dieter – 1/2-1/2 – Nainggolan M – G25 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O e6 5. c3 Nf6 6. Qe2 Be7 7. d4 cxd4 8. cxd4 O-O 9. Nc3 a6 10. Ba4 b5
1967 Oxford ch-BCF – Round 7 – Cafferty, Bernard – 1/2-1/2 – Clarke, Paul R H – G67 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O e6 5. c3 Nf6 6. d4 a6 7. Bxc6+ bxc6 8. e5 Nd7 9. exd6 Bxd6 10. Nbd2 O-O
1967 Venice Venice ITA – Round 3 – Zinser, Sylvain – 0-1 – Janosevic, Dragoljub – G11 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Nf6 9. c4 Bg4 10. Nc3 Nd7
1968 Monte Carlo – Round 11 – Damjanovic, Marko – 0-1 – Larsen, Benjamin Holsko – G68 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bg4 5. h3 Bh5 6. Re1 e6 7. Bxc6+ bxc6 8. d3 Nf6 9. e5 dxe5 10. Rxe5 c4
1975 URS Team Ch – Round 1 – Kudriashov, Anatoli – 1-0 – Ustinov, Georgy I – G251 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O a6 5. Bxc6+ bxc6 6. d3 g6 7. e5 d5 8. Nc3 h6 9. Na4 e6 10. b3 Qc7
Moscow Superblitz 2006 – Round 13 – Kobalia, Mikhail – 1/2-1/2 – Korotylev, Alexey – G35 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bg4 5. h3 Bh5 6. e5 d5 7. d3 e6 8. Nbd2 Ne7 9. Nb3 Nc8 10. Be3 d4
World Blitz 2019 – Round 12.59 – Nozdrachev, Vladislav – 1-0 – Sadhwani, Raunak – G835 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Nf6 5. e5 Nd5 6. Re1 Bg4 7. h3 Bh5 8. Bxc6+ bxc6 9. d3 e6 10. Na3 dxe5
World Rapid 2016 – Round 12.31 – Mchedlishvili, Mikheil – 1/2-1/2 – Jobava, Baadur – G463 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Nf6 5. e5 dxe5 6. Nxe5 Bd7 7. Bxc6 1/2-1/2

B51m —

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O

Eval: [+0.33]

Les coups candidats

4…Bd7 — 82.3% (10734 parties) →

Ambassadeurs : Tiviakov, Sergei (68x), Da Silva Filho, Alcindo Luz Bastos (54x), Grivas, Efstratios (34x), Kharlov, Andrei (33x), Movsesian, Sergei (31x), ? (31x), Atakisi, Umut (29x), Hracek, Zbynek (26x)

4…Bg4 — 4.5% (583 parties)

Ambassadeurs : Tiviakov, Sergei (9x), Klimentov, Roman (6x), Heberla, Bartlomiej (5x), Sedina, Elena (5x), Larsen, Benjamin Holsko (4x), Perenyi, Bela (4x), Hartikainen, Markku (4x), Kohout, Josef (4x)

4…Nf6 — 4.2% (550 parties)

Ambassadeurs : Martin Gonzalez, Angel (4x), Menzi, Nezihe Ezgi (4x), Doubleday, William G. (3x), Cukrowski, Filip (3x), Bruno, Ricardo (3x), Ellena, Bill (2x), Kaiszauri, Konstanty (2x), Franzen, Jozef (2x)

4…a6 — 3.2% (421 parties)

Ambassadeurs : Lombardy, William J (4x), Goldenberg, Richard (3x), Sokolsky, Alexey (2x), Kotov Lundqvist, Alex (2x), O'Kelly, Albéric de Galway (2x), Najdorf, Miguel (2x), O'Kelly de Galway, Alberic (2x), Barendregt, Johan (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Bd7	4…Bg4	4…Nf6	4…a6
<1800	267	60%	5%	11%	8%
1800-2200	3562	75%	5%	7%	4%
2200-2600	7170	90%	4%	2%	1%
2600+	492	97%	2%	1%	—

Évolution par décennie (% des parties)

Décennie	N parties	4…Bd7	4…Bg4	4…Nf6	4…a6
1940s	12	17%	—	25%	42%
1950s	77	29%	26%	10%	22%
1960s	58	45%	19%	—	22%
1970s	274	64%	16%	4%	9%
1980s	441	77%	6%	6%	5%
1990s	1859	76%	7%	4%	5%
2000s	3836	82%	4%	5%	3%
2010s	4944	86%	3%	4%	2%
2020s	1536	89%	2%	3%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Bd7	86%	89%	▲ +3.4%
4…Bg4	3%	2%	▼ -0.8%
4…Nf6	4%	3%	▼ -0.7%
4…a6	2%	1%	▼ -0.7%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 10 parties
Ju, Wenjun — 9 parties
Gukesh D — 8 parties
Tal, Mikhail — 6 parties
Kasparov, Garry — 5 parties
Karpov, Anatoly — 3 parties
Hou, Yifan — 3 parties
Carlsen, Magnus — 3 parties
Botvinnik, Mikhail — 2 parties
Smyslov, Vladimir — 2 parties
Kramnik, Vladimir — 2 parties

Parties historiques

4…Bd7 — 82.3% (10734 parties)

1948 — Kholmov, Ratmir D vs Ragozin, Viacheslav — 1-0 — Moskou ch-URS
1948 — Canal, Esteban vs Polzer, Hans — 1-0 — Bad Gastein
1950 — Sokolsky, Alexey vs Geller, Efim P. — 1-0 — Kiev UKR
1951 — Gligoric, Svetozar vs Nedeljkovic, Srecko M — 1/2-1/2 — Ljubljana
1951 — Trifunovic, Petar vs Nedeljkovic, Srecko M — 1/2-1/2 — Ljubljana

4…Bg4 — 4.5% (583 parties)

1950 — Milic, Borislav vs Pirc, Vasja — 1/2-1/2 — Bled SLO
1950 — Sokolsky, Alexey vs Aronin, Lev — 0-1 — Moskou ch-URS
1950 — Boleslavsky, Isaac vs Aronin, Lev — 0-1 — Moskou ch-URS
1950 — Aronin, Lev vs Soloviev, Vladimir A — 0-1 — Gorky
1951 — Shagalovich, Abo vs Kondratiev, Aleksandr — 1-0 — Leningrad RUS

4…Nf6 — 4.2% (550 parties)

1947 — Gereben, Erno vs Mueller, Hans — 1/2-1/2 — Vienna AUT
1949 — Liublinsky, Victor vs Taimanov, Mark — 0-1 — Moskou ch-URS
1949 — Aronin, Lev vs Goldberg, Grigory A — 1/2-1/2 — Moskou ch-URS
1950 — Abramov, Lev vs Lisitsin, Georgy — 0-1 — URS-ch sf Leningard
1950 — O'Kelly, Albéric de Galway vs Najdorf, Miguel — 0-1 — Amsterdam NED

4…a6 — 3.2% (421 parties)

1947 — Sokolsky, Alexey vs Botvinnik, Mikhail — 0-1 — Moscow RUS
1948 — O'Kelly, Albéric de Galway vs Najdorf, Miguel — 1-0 — Mar del Plata ARG
1948 — O'Kelly de Galway, Alberic vs Najdorf, Miguel — 1-0 — 11
1948 — Aronin, Lev vs Kotov Lundqvist, Alex — 0-1 — Moskou ch-URS
1949 — Sokolsky, Alexey vs Kotov Lundqvist, Alex — 1-0 — Moskou ch-URS