B10u — Caro-Kann: Two Knights, 3…dxe4 4.Nxe4

1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 * ● 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 la case forte g5, la paire de fous et la colonne semi-ouverte e.

Côté adverse. Les fous enfermés en c8 et f8 et 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) ; d3 (Libérer Bc1) ; Bd3 (Développer Bf1) ; 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 la case forte d5, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les cavaliers b8 et g8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nbd7 (Développer Nb8) ; ...Nf6 (Développer Ng8) ; ...Bg4 (Développer Bc8, clouer Nf3) ; ...Bd6 (Développer Bf8).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→c6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	● d5 (2v0)
Cases faibles	—	—
Centre	● e5 (1v0)	● d5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● e	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (c1, f1, a1, h1)	6 (b8, g8, c8, f8, 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	● c2-c3, ● d2-d3	● …c6-c5, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5

Partie
1922 London ENG – Round 13 – Bogoljubow, Efim – 1-0 – Guillen Watson, Cesar Augusto – G7 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 g6 5. Bc4 Bg7 6. d4 Nd7 7. Qe2 Nb6 8. Bb3 Nh6 9. Nf6+ Bxf6 10. Bxh6 Bg4
1926 Semmering – Round 1 – Treybal, Karel – 1/2-1/2 – Nimzowitsch, Aaron – G66 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. h3 Bh5 7. Ng3 Bg6 8. h4 h6 9. Ne5 Bh7 10. Qe2 Qc8
1928 Dortmund – Round 5 – Spielmann, Rudolf – 1-0 – Van Nss, Alfred – G6 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Qd6 8. d4 Nd7 9. Nxg6 Qxg6 10. Bf4 Qe6+
1928 Dortmund – Round 5 – Spielmann, Rudolf – 1-0 – Van Nuess, Alfred – G14 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Qd6 8. d4 Nd7 9. Nxg6 Qxg6 10. Bf4 Qe6+
1928 Kautsky mem5 – Round ? – Lustig, Felix – 0-1 – Thelen, Bedrich – G10 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Ng3 Qc7 8. O-O Bd6 9. Bb3 b6 10. c4 Bb7
1931 Argentina – Round 17 – Nogues Acuna, Alejandro – 1-0 – Fenoglio, Virgilio – G53 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Bc4 e6 10. Qe2 Qe7
1931 DSB-27.Kongress – Round ? – Mieses, Jacques – 1/2-1/2 – Weissgerber, Gerhard – G50 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. Be2 Nd7 7. d4 Ngf6 8. h3 Bxf3 9. Bxf3 Qc7 10. Qe2 e6
1934 Leningrad ch-URS – Round 1 – Riumin, Nikolai – 1/2-1/2 – Belavenets, Sergey – G109 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng3 e6 7. Qe2 Be7 8. O-O O-O 9. d4 Re8 10. Bb3 Bd6
1934 Zuerich – Round 1 – Lasker, Emanuel – 1/2-1/2 – Flohr, Salo – G73 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Ng3 Nf6 6. Be2 e6 7. Ne5 Bxe2 8. Qxe2 Qd5 9. Nf3 c5 10. d3 Nc6
1934 Zuerich – Round 13 – Lasker, Emanuel – 1-0 – Mueller, Helge – G106 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Qf3 Nf6 10. Qb3 Qd5
1936 Leningrad Leningrad RUS – Round 2 – Ragozin, Viacheslav – 1-0 – Goglidze, Viktor – G1 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Qd6 8. d4 Nd7 9. f4 O-O-O 10. h5 Bh7
1937 Leningrad – Round 1 – Rauzer, Vsevolod – 1/2-1/2 – Levenfish, Grigory – G4 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Nxf6+ Nxf6 7. Ne5 Nd5 8. Qf3 Be6 9. d4 g6 10. O-O Bg7
1937 Prague – Round 3 – Hromadka, Karel – 1-0 – Dobias, Josef – G16 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Bc4 e6 10. Qe2 Qe7
1938 Plymouth Jubilee – Round 3 – Alekhine, Alexander – 1-0 – Bruce, Ronald MacKay – G6 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Bc4 e6 10. Qe2 Nf6
1938 URS Ch sf Leningrad RUS – Round 1 – Chekhover, Vitaly – 1/2-1/2 – Makogonov, Vladimir – G14 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bxf3 7. Qxf3 Nf6 8. Bc4 e6 9. O-O Be7 10. c3 O-O
1938 URS Ch, semi final – Round 1 – Ilyin Zhenevsky, Alexander – 1-0 – Kasparian, Genrikh – G45 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Qf3 Nf6 10. Qb3 Qd5
1939 Leningrad ch-URS – Round 1 – Chistiakov, Alexander – 1/2-1/2 – Makogonov, Vladimir – G4 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. Bc4 e6 7. c3 Nd7 8. d4 Ngf6 9. h3 Bxf3 10. Qxf3 Bd6
1939 Leningrad ch-URS – Round 7 – Chekhover, Vitaly – 1-0 – Kotov Lundqvist, Alex – G55 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. d3 Nb6 7. Nxf6+ gxf6 8. Bb3 Qd6 9. Qe2 Be6 10. c4 O-O-O
1939 Leningrad/Moscow – Round 13 – Levenfish, Grigory – 1-0 – Konstantinopolsky, Alexander – G101 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. Bc4 e6 7. h3 Bxf3 8. Qxf3 Nf6 9. O-O Bd6 10. Re1 O-O
1939 Leningrad/Moscow – Round 4 – Smyslov, Vladimir – 1/2-1/2 – Makogonov, Igor – G31 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. c3 Nd7 7. d4 Ngf6 8. Ng3 Qc7 9. h3 Bxf3 10. Qxf3 Bd6
1940 URS-sf – Round 1 – Cseshkovsky, Vitaly – 1/2-1/2 – Kasparian, Genrikh – G50 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. d3 Nb6 7. Qe2 Nxc4 8. dxc4 Nxe4 9. Qxe4 Qa5+ 10. Bd2 Qf5
1941 Madrid sim – Round 1 – Alekhine, Alexander – 1-0 – Nabarro, M. – G3 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Nd7 8. Nxg6 fxg6 9. d4 e5 10. Qg4 Qf6
1942 Chocen – Round ? – Dobias, Josef – 0-1 – Zita, Frantisek – G33 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. d4 Nd7 6. Be2 Ngf6 7. Ng3 Qc7 8. O-O e6 9. Re1 Bd6 10. Ne5 Bxe2
1945 Buenos Aires Circulo – Round 2 – Michel, Paul – 1-0 – Falcon, Enrique – G6 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Nxf6+ Nxf6 8. O-O Be7 9. Qe2 O-O 10. c3 c5
1945 USSR ch sf – Round 10 – Romanovsky, Pjotr – 1/2-1/2 – Poliak, Abram – G16 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 Nd5 7. d4 h6 8. Ne4 N7f6 9. Ng3 Qc7 10. O-O Bg4
1946 Budapest – Round 1 – Asztalos, Lajos – 1-0 – Negyesy, Gyorgy – G9 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bxf3 7. Qxf3 Nd7 8. d4 Qb6 9. c3 Ngf6 10. Bc4 e6
1946 Buenos Aires ch-ARG – Round 1 – Bolbochan, J. – 1/2-1/2 – De Piro, Tristram – G36 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Bc4 e6 10. Qe2 Qe7
1946 Moscow-Prague – Round 1 – Simagin, Vladimir – 1/2-1/2 – Zíta, František – G4 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. d3 Nd7 7. Bf4 Ngf6 8. h3 Bh5 9. g4 Bg6 10. Ng3 Nd5
1946 New York ch-USA – Round 1 – Rubinow, Sol – 0-1 – Santasiere, Anthony – G26 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bxf3 7. Qxf3 Nf6 8. Bc4 e6 9. O-O Nbd7 10. Re1 Qc7
1946 POL Ch – Round 5 – Pytlakowski, Andrzej – 1/2-1/2 – Blaszczak, Czeslaw – G28 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bg6 7. h4 h6 8. Ne5 Bh7 9. Qf3 Nf6 10. Qb3 Qd5
1947 Chigorin Memorial – Round 1 – Sokolsky, Alexey – 1/2-1/2 – Kholmov, Ratmir D – G57 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. c3 Nd7 7. d4 Ngf6 8. Ng3 Be7 9. h3 Bxf3 10. Qxf3 O-O
1947 Hungary – Round 1 – Ban, Jeno – 1/2-1/2 – Füster, Géza – G24 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Nxf6+ Nxf6 7. Ne5 e6 8. d4 Bd6 9. Qe2 Qc7 10. c3 a6
1947 Moscow – Round 1 – Kasparian, Genrikh – 1-0 – Ravinsky, Grigory – G22 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. O-O Ngf6 7. Nxf6+ Nxf6 8. d4 Be7 9. Qe2 O-O 10. Bg5 Qc7
1947 Parnu – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Flohr, Salo – G46 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Qe2 Ndf6 6. d3 Nxe4 7. dxe4 Bg4 8. h3 Bh5 9. Bd2 Qc7 10. O-O-O O-O-O
1947 Yugoslavia Ch – Round 6 – Puc, Stojan – 1-0 – Kulzinski, Nikolaj – G30 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Qd6 8. d4 Nd7 9. Nxg6 Qxg6 10. Bc4 Qd6
1948 Karlovy Vary – Round 9 – Troianescu, Octav – 0-1 – Golombek, Harry – G95 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bxf3 7. Qxf3 Nf6 8. Bc4 e6 9. O-O Be7 10. c3 O-O
1949 Budapest-Moscow – Round 16 – Bronstein, David I – 1-0 – Tipary, Lajos – G114 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. d4 e6 6. Bd3 Nf6 7. h3 Bf5 8. Nxf6+ Qxf6 9. O-O Bxd3 10. Qxd3 Qd8
1949 Leningrad – Round 1 – Dubinin, Peter – 0-1 – Kasparian, Genrikh – G18 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. h3 Bh5 7. Qe2 Be7 8. d3 Nd7 9. g4 Bg6 10. Bf4 Ngf6
1949 URS Ch, semi final – Round 1 – Cherepkov, Alexander V – 1/2-1/2 – Alatortsev, Vladimir N. – G65 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Nxf6+ Nxf6 8. O-O Be7 9. Bg5 O-O 10. Qe2 Re8
1949 Venice – Round 1 – Foltys, Jan – 1-0 – Golombek, Harry – G12 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Nxf6+ Nxf6 8. O-O Qc7 9. Ne5 Bd6 10. Qe2 O-O
1949 YUG-NED – Round 2.9 – Nedeljkovic, Srecko M – 1/2-1/2 – Henneberke, Frans – G15 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. h3 Bxf3 7. Qxf3 Nf6 8. O-O Nbd7 9. Nxf6+ Qxf6 10. Qxf6 Nxf6
1949 Zagreb – Round 4 – Gligorić, Svetozar – 1-0 – Avirovic, Djordje – G6 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. d4 Bxf3 6. Qxf3 Qxd4 7. Bd3 Nd7 8. Be3 Qd5 9. Qg3 Ne5 10. O-O Nxd3
1949 Zagreb ch YUG – Round 16 – Gligoric, Svetozar – 1/2-1/2 – Matanovic, Aleksandar – G34 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. d4 e6 6. Bd3 Nf6 7. h3 Bf5 8. Nxf6+ Qxf6 9. O-O Bd6 10. c4 O-O
1950 Bled – Round 10 – Pfeiffer, Gerhard – 1-0 – Matanovic, Aleksandar – G53 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. O-O Ngf6 7. Ng3 b5 8. Bb3 Be7 9. d4 O-O 10. Qe2 a5
1950 CSR-BUL Prague CZE – Round 4 – Tsvetkov, Alexandar K – 1/2-1/2 – Richter, Emil – G26 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. O-O Ngf6 7. Ng3 Bd6 8. d4 Qc7 9. Re1 O-O 10. Qe2 Re8
1950 FRG Ch – Round 9 – Staudte, Hans-Hilmar – 1/2-1/2 – Pfeiffer, Gerhard – G25 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. Qe2 Be7 7. O-O Ngf6 8. Neg5 Nd5 9. d4 h6 10. Nh3 Qc7
1950 FRG Ch 01st – Round 10 – Pfeiffer, Gerhard – 1-0 – Machate, Gottlieb – G12 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 e6 7. Qe2 Nd5 8. d4 Be7 9. O-O Bf6 10. Bb3 a5
1950 Mar del Plata – Round 6 – Gligorić, Svetozar – 1/2-1/2 – Luckis, Marcos – G52 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Nxf6+ Nxf6 8. O-O Qc7 9. Ne5 Bd6 10. Bf4 O-O
1950 Venice – Round 3 – Smyslov, Vladimir – 1-0 – Golombek, Harry – G37 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 e6 7. Qe2 Nd5 8. d4 h6 9. Ne4 Be7 10. O-O Qc7
1951 GER Ch 14th – Round 9 – Platz, Hans – 0-1 – Pfeiffer, Gerhard – G27 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. Qe2 Ndf6 7. d4 Ne7 8. Bd2 Nf5 9. O-O-O Nxe4 10. Qxe4 Nd6
1951 GER Ch U20 – Round 13 – Fuchs, Reinhart – 1-0 – Achatz Karl Hans – G40 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 f6 7. Bc4 e5 8. d4 Nd7 9. O-O Bd6 10. h5 Bf7
1951 Hungary Ch – Round 1 – Szily, Jozsef – 1/2-1/2 – Szabadi, Elemer – G68 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Nxf6+ Nxf6 7. O-O Bf5 8. Re1 e6 9. d4 Qc7 10. Bg5 Bd6
1951 San Rafael – Round ? – Mangini, Jose Henrique de Mello – 0-1 – Toran Albero, Roman – G43 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Qe2 Ndf6 6. d4 Nxe4 7. Qxe4 Nf6 8. Qd3 Bg4 9. Be2 e6 10. Bf4 Bd6
1951 Travemuende – Round 1 – Rellstab, Ludwig – 0-1 – Pfeiffer, Gerhard – G2 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Nxf6+ gxf6 8. c3 b5 9. Be2 Bb7 10. Bf4 Nb6
1951 Wertheim Memorial – Round 2 – Byrne, Robert E – 1-0 – Shainswit, George – G12 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. O-O Ngf6 7. Nxf6+ Nxf6 8. d4 Be7 9. Qe2 O-O 10. Bf4 Nd5
1951 Wertheim Memorial – Round 2 – Byrne, Robert E – 1-0 – Shainswit, George – G13 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. O-O Ngf6 7. Nxf6+ Nxf6 8. d4 Be7 9. Qe2 O-O 10. Bf4 Nd5
1951 YUG Ch 7th – Round 4 – Matanovic, Aleksandar – 1/2-1/2 – Germek, Milan – G30 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. Qe2 Be7 7. O-O Ngf6 8. Neg5 Nd5 9. d4 O-O 10. Bb3 h6
1952 Havana – Round 2 – Eliskases, Erich – 1/2-1/2 – Toran Albero, Roman – G48 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 e6 7. Qe2 Nd5 8. d4 Be7 9. O-O h6 10. Ne4 Qc7
1952 Hungary Ch – Round 7 – Ban Juach – 1-0 – Lengyel, Laszlo – G41 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Qe2 Nxe4 7. Qxe4 Nf6 8. Ne5 e6 9. Qe2 Be7 10. c3 O-O
1952 Miedzyzdroje – Round 17 – Milev, Zdravko – 1-0 – Plater, Kazimierz – G108 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. Qe2 Ngf6 7. Neg5 Nd5 8. d4 Be7 9. O-O h6 10. Ne4 N7f6
1952 Rio de Janeiro – Round 8 – Cruz, Walter – 1/2-1/2 – Cruz, Walter – G45 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. O-O Ngf6 7. Nxf6+ Nxf6 8. d4 Bd6 9. Bg5 Qc7 10. Qe2 Bd7
1953 Budapest HUN – Round ? – Barczay, Laszlo – 1-0 – Felmeri, Janos – G17 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ndf6 6. Qe2 Nxe4 7. Qxe4 Nf6 8. Ne5 e6 9. Qe2 Be7 10. c3 O-O
1953 Hastings ch-BCF – Round 1 – Fazekas, Stephan – 1/2-1/2 – Trevor Wise Karanja – G12 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Qe2 Ndf6 6. d3 Qc7 7. g3 Nxe4 8. dxe4 e5 9. Bd2 Nf6 10. Bc3 Bd6
1953 Hastings ch-BCF – Round 5 – Yanofsky, Daniel Abraham – 1-0 – Wade, Robert G – G47 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 e6 7. Qe2 Nd5 8. d4 Be7 9. Bd3 N7f6 10. O-O O-O
1953 Wch U20 qual-B – Round 8 – Darga, Klaus – 1-0 – Heikkila, Heikki – G10 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bg6 7. h4 h6 8. Ne5 Bh7 9. Qh5 g6 10. Qf3 Nf6
1954 DDR Ch 05th – Round 4 – Fuchs, Reinhart – 1-0 – Troschier, Kurt – G22 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 e6 7. Qe2 Nb6 8. Bb3 Bd6 9. d4 O-O 10. O-O Qc7
1954 ITA-ch17 – Round 8 – Cala, Ugo – 1-0 – Romih, Max – G13 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. h3 Bh5 7. d3 Nd7 8. Ng3 Bg6 9. Qe2 Bd6 10. Ne4 Be7
1954 Kiev ch-URS – Round 1 – Nezhmetdinov, Rashid – 1-0 – Livshin, Iosif – G120 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 e6 7. Qe2 Nb6 8. Ne5 Nxc4 9. Qxc4 Qd5 10. Qxd5 exd5
1954 Olympiad final A – Round 1 – Rellstab, Ludwig – 1/2-1/2 – Zita, Filip – G69 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. d3 Nd7 7. Bf4 Ngf6 8. h3 Bh5 9. Ng3 Bxf3 10. Qxf3 Qa5+
1955 CSR Ch – Round 2 – Fichtl, Jiri – 1/2-1/2 – Zíta, František – G12 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. h3 Bxf3 7. Qxf3 Nd7 8. Qe2 Be7 9. Bb3 Ngf6 10. d4 Nxe4
1955 Odessa – Round ? – Byvshev, Vasily – 1-0 – Poliak, Evsey – G7 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. h3 Bxf3 7. Qxf3 Nd7 8. Qg3 Ngf6 9. d3 Be7 10. O-O O-O
1957 New York ch-USA – Round 7 – Lombardy, William J – 1-0 – Turner, Abe J – G43 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. Qe2 Ngf6 7. Neg5 Nd5 8. d4 h6 9. Ne4 Bb4+ 10. c3 Be7
1958 GBR Ch 45th – Round 2.12 – Penrose, Jonathan – 1-0 – Wise, Thomas H – G9 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. Qe2 Ngf6 7. Neg5 Nd5 8. d4 Be7 9. O-O h6 10. Nh3 Qc7
1958 GBR Ch 45th – Round 6.7 – Wade, Robert G – 1-0 – Wise, Thomas H – G43 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Qe2 Ndf6 6. g3 Nxe4 7. Qxe4 Nf6 8. Qe2 Bg4 9. h3 Bxf3 10. Qxf3 Qd5
1958 Sarajevo Sarajevo BIH – Round 1 – Rabar, Bakhtyar Hamasaleh – 1/2-1/2 – Matulovic, Milan – G26 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nh6 5. d4 Nf5 6. c3 g6 7. h4 Nd6 8. Nxd6+ Qxd6 9. h5 Bg7 10. Be3 Be6
1958 WchT U26 fin-B 05th – Round 6 – Ghitescu, Theodor – 1-0 – Cochrane, Richard – G41 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Bc4 e6 10. Qe2 Qe7
1959 Kiel – Round 7 – Teschner, Rudolf – 1-0 – Lueders, Horst – G14 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 g6 5. Bc4 e6 6. d4 Bg7 7. Bf4 Nd7 8. Nd6+ Kf8 9. Nxf7 Kxf7 10. Ng5+ Ke7
1960 Avantgard Ch – Round 4 – Kofman, Abram R – 0-1 – Poliak, Evsey – G20 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Bc4 e6 7. Ng3 Bxf3 8. Qxf3 Nf6 9. O-O Bd6 10. d4 O-O
1960 Leipzig olm prel – Round 1 – O'Hare, Eugene – 0-1 – Dunkelblum, Arthur – G25 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. O-O Be7 7. d3 Nf6 8. Qe2 O-O 9. h3 Bh5 10. Re1 Nbd7
1961 FRG Ch Bad Prymont – Round 5 – Darga, Klaus – 1-0 – Pfeiffer, Gerhard – G11 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Nxf6+ Nxf6 8. Qe2 Be7 9. O-O O-O 10. Bg5 a6
1961 New York ch-USA – Round 9 – Seidman, Herbert – 0-1 – Turner, Abe J – G45 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Qe2 e6 6. d3 Ngf6 7. Bf4 Nxe4 8. dxe4 Qa5+ 9. c3 e5 10. Bg3 Be7
1961 Oberhausen etc – Round 4 – Keres, Paul Petrovich – 1-0 – Barcza, Gedeon – G117 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Nxf6+ Nxf6 8. Bg5 Qa5+ 9. c3 Ne4 10. Bf4 Bd6
1961 URU Ch sf – Round ? – Olivera, Alfredo – 1/2-1/2 – Trinidad Moreno, Victor – G8 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bxf3 7. Qxf3 Nf6 8. Bc4 e6 9. O-O Nbd7 10. d4 Nb6
1962 Open – Round 5 – Blackstone, John – 0-1 – Vinerto, H. – G9 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Bc4 e6 7. h4 h6 8. Ne5 Qf6 9. Nxg6 Qxg6 10. d4 Nd7
1962 Stockholm Interzonal – Round 19 – Gligorić, Svetozar – 1/2-1/2 – Petrosian, Tigran V – G170 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. Be2 Nf6 7. O-O e6 8. d4 Nbd7 9. Bf4 Nb6 10. Re1 Be7
1962 Stockholm Interzonal – Round 4 – Fischer, Robert J – 1-0 – Portisch, Lajos – G33 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 Nd5 7. d4 h6 8. Ne4 N7b6 9. Bb3 Bf5 10. Ng3 Bh7
1962 Varna olm – Round 1 – Limbos, Patrick – 1/2-1/2 – Golombek, Harry – G49 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. O-O Nf6 7. Ng3 Nbd7 8. Re1 Bd6 9. d4 O-O 10. h3 Bxf3
1963 Split ol women – Round 15 – Ladanyine-Karakas, Eva – 1/2-1/2 – Heemskerk, Fenny – G32 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Qe2 e6 6. g3 g6 7. Bg2 Ngf6 8. d3 Nxe4 9. dxe4 Bg7 10. O-O O-O
1964 Hoogovens – Round 1 – Parma, Bruno – 1-0 – Dunkelblum, Arthur – G33 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. Qe2 Be7 7. d4 Ngf6 8. Nxf6+ Nxf6 9. Bd2 Qc7 10. O-O-O O-O
1964 Reggio Emilia ITA – Round 10 – Paoli, Enrico – 1-0 – Bagnoli, Paolo – G33 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. O-O Nd7 7. d4 Ngf6 8. Ng3 h5 9. Re1 Bd6 10. a3 Qc7
1965 Chigorin Memorial – Round 6 – Damjanovic, Mato – 1-0 – Nezhmetdinov, Rashid – G26 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. Bc4 e6 7. h3 Bxf3 8. Qxf3 Nd7 9. Be2 Ngf6 10. O-O Qc7
1965 It II Beverwijk NED – Round 10 – Karaklajic, Nikola – 1/2-1/2 – Kramer, Haije – G33 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Neg5 e6 7. Qe2 Nd5 8. d4 Be7 9. O-O h6 10. Ne4 O-O
1965 London June Training – Round 4 – Hindle, Owen M – 1/2-1/2 – Keene, Raymond D – G10 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. h3 Bxf3 7. Qxf3 Nd7 8. Qe2 Ngf6 9. Ng5 Nd5 10. d4 h6
1966 It Agio – Round 5 – Limbos, Paul – 0-1 – Golombek, Harry – G13 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. c3 Nd7 6. d4 Ngf6 7. Nxf6+ Nxf6 8. Bd3 e6 9. Bf4 Bd6 10. Bxd6 Qxd6
1966 Palma de Mallorca – Round 10 – Tal, Mikhail – 1-0 – Pfleger, Helmut, Dr. – G59 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. d4 e6 6. Bd3 Nd7 7. Bf4 Ndf6 8. Neg5 Bd6 9. Qd2 Bxf3 10. Nxf3 Ne7
1967 FRA Ch Dieppe FRA – Round 11 – Abreu Jean, Carlos Paul – 1/2-1/2 – Thiellement, Andre – G41 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Bc4 e6 10. Qe2 Qe7
1967 FRA Ch Dieppe FRA – Round 7 – Balcaen – 1-0 – Ferry, Roger – G23 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Qf3 f6 10. Bc4 e6
1967 ISR Ch – Round 9 – Stepak, Yedael – 1/2-1/2 – Rosenberg, Arie – G39 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Qd6 8. d4 Nd7 9. Nxg6 Qxg6 10. Bd3 Qd6
1967 Kbenhavnsmesterskabet – Round 4 – Moe, Mogens – 1/2-1/2 – Sloth, Jorn – G8 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. d3 Nb6 7. Nxf6+ gxf6 8. Bb3 Rg8 9. Bf4 Nd5 10. Qd2 Nxf4
1968 Moscow Ch – Round ? – Zaitsev, Igor A – 0-1 – Bronstein, David I – G20 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bxf3 7. Qxf3 Nf6 8. Bc4 e6 9. O-O Nbd7 10. Re1 Qc7
1969 Rubinstein Memorial – Round 5 – Sydor, Andrzej – 1/2-1/2 – Kostro, Jerzy – G35 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Qe2 Nxe4 7. Qxe4 Nf6 8. Ne5 e6 9. Qe2 Be7 10. O-O O-O
1969 URS Team Ch – Round 1 – Taimanov, Mark E – 1/2-1/2 – Zaitsev, Igor A – G7 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. h3 Bxf3 7. Qxf3 e6 8. Be2 Nf6 9. O-O Bd6 10. b4 Qc7
World Blitz 2019 – Round 4.47 – Wang, Hao(ZJWZ) – 1-0 – Krsnik Cohar, Ivan Vihor – G270 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Nd7 8. Nxg6 fxg6 9. d4 Qc7 10. Bc4 O-O-O

B10u — Two Knights

1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4

Eval: [+0.33]

Les coups candidats

4…Nf6 — 62.1% (5834 parties) →

Ambassadeurs : Munoz, Miguel (20x), Flohr, Salo (19x), Nomin-Erdene, Davaademberel (15x), Donchenko, Alexander (15x), Kosteniuk, Alexandra (15x), Krstulovic, Alex (14x), Gunina, Valentina (14x), Konstantinopolsky, Alexander (13x)

4…Bf5 — 15.4% (1451 parties)

Ambassadeurs : Wall, Bill (5x), Alekhine, Alexander (4x), ? (4x), Mallet, Celine (3x), Biro, Sandor (3x), Lafuente, Pablo (3x), Pacal, Mihaly (3x), Barwinski, Dionizy (3x)

4…Nd7 — 12.5% (1179 parties)

Ambassadeurs : Pfeiffer, Gerhard (6x), Luckis, Marcos (5x), Cabot Muntane, Jordi (5x), Poliak, Abram (4x), Toran Albero, Roman (4x), Shainswit, George (4x), Rasmussen, Allan Stig (4x), Beck, Georges (4x)

4…Bg4 — 9.1% (856 parties)

Ambassadeurs : Babatov, Martin (9x), Golombek, Harry (7x), Zíta, František (6x), Poliak, Evsey (5x), Bogoljubow, Efim (4x), Koberl, Ferenc (4x), Andreev, Dobrotich (4x), Heemskerk, Fenny (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Nf6	4…Bf5	4…Nd7	4…Bg4
<1800	432	40%	31%	15%	13%
1800-2200	3505	56%	18%	14%	11%
2200-2600	3175	84%	5%	7%	3%
2600+	167	96%	2%	2%	—

Évolution par décennie (% des parties)

Décennie	N parties	4…Nf6	4…Bf5	4…Nd7	4…Bg4
1910s	1	—	100%	—	—
1920s	12	42%	17%	17%	17%
1930s	77	48%	21%	19%	12%
1940s	139	57%	8%	18%	17%
1950s	193	47%	3%	26%	22%
1960s	184	51%	12%	19%	17%
1970s	124	60%	10%	18%	11%
1980s	260	60%	13%	14%	12%
1990s	1124	47%	21%	18%	12%
2000s	1623	39%	27%	21%	12%
2010s	2818	57%	19%	12%	11%
2020s	2842	89%	4%	4%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Nf6	57%	89%	▲ +32.0%
4…Bf5	19%	4%	▼ -15.2%
4…Nd7	12%	4%	▼ -7.9%
4…Bg4	11%	3%	▼ -8.1%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 10 parties
Alekhine, Alexander — 7 parties
Gukesh D — 7 parties
Lasker, Emanuel — 3 parties
Tal, Mikhail — 3 parties
Botvinnik, Mikhail — 3 parties
Karpov, Anatoly — 3 parties
Carlsen, Magnus — 3 parties
Anand, Viswanathan — 2 parties
Euwe, Max — 1 partie
Karpov, Aleksandr — 1 partie
Ju, Wenjun — 1 partie
Hou, Yifan — 1 partie

Parties historiques

4…Nf6 — 62.1% (5834 parties)

1921 — Bogoljubow, Efim vs Saemisch, Friedrich — 1/2-1/2 — Kiel GER
1922 — Capablanca, Jose vs Bigelow, Horace — 1-0 — New York, NY USA
1923 — Tarrasch, Siegbert vs Tartakower, Savielly — 1/2-1/2 — Carlsbad CZE
1924 — Treybal, Karel vs Kuzelka, J. — 1/2-1/2 — Prague CZE
1929 — Kan, Ilya A vs Ravinsky, Grigory — 1-0 — Odessa ch-URS

4…Bf5 — 15.4% (1451 parties)

1919 — Lasker, Emanuel vs ? — 1-0 — Hannover GER
1928 — Spielmann, Rudolf vs Van Nuess, Alfred — 1-0 — Dortmund GER
1928 — Spielmann, Rudolf vs Van Nss, Alfred — 1-0 — 1.Internationales Turnier
1931 — Nogues Acuna, Alejandro vs Fenoglio, Virgilio — 1-0 — Argentina
1931 — Mieses, Jacques vs Weissgerber, Gerhard — 1/2-1/2 — Swinemuende

4…Nd7 — 12.5% (1179 parties)

1928 — Lustig, Felix vs Thelen, Bedrich — 0-1 — Prague CZE
1929 — Spielmann, Rudolf vs Hoenlinger, Baldur — 1-0 — Vienna AUT
1932 — Bogoljubow, Efim vs Colin, Barron Alberto — 1-0 — Bern SUI
1934 — Bohatyrchuk, Fedir Parfenovych vs Yudovich, Mikhail M — 1/2-1/2 — Leningrad ch-URS
1934 — Riumin, Nikolai vs Belavenets, Sergey — 1/2-1/2 — Leningrad ch-URS

4…Bg4 — 9.1% (856 parties)

1926 — Treybal, Karel vs Nimzowitsch, Aaron — 1/2-1/2 — Semmering AUT
1927 — Bogoljubow, Efim vs Antze, Oskar — 1-0 — Bremen GER
1932 — Gundersen Gunnar vs Greenfield, Wilfred J — 0-1 — Sydney AUS
1934 — Lasker, Emanuel vs Flohr, Salo — 1/2-1/2 — Zurich SUI
1938 — Chekhover, Vitaly vs Makogonov, Vladimir — 1/2-1/2 — URS-ch sf Leningrad RUS

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