D46c — Semi-Slav: Bogoljubow, 7.O-O O-O

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Be7 7.O-O O-O * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte e5.

Atouts. Les Blancs s'appuient sur la case forte e5, un fou actif en d3 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

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

Plans. Bd2 (Développer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e4.

Atouts. Les Noirs s'appuient sur un avant-poste en e4, un fou actif en e7 et la paire de fous.

Côté adverse. Le fou enfermé en c1.

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

Plans. ...c5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● c6→d5, e6→d5, b7→c6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1)	—
Cases faibles	● e4	—
Centre	● d4 (2v0), ● e5 (2v1)	● d5 (3v2)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bd3	● Bd3 Actif (mob. 7)
Be7		● Be7 Actif (mob. 4)
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	● c4-c5, ● e3-e4	● …c6-c5, ● …e6-e5

Partie
1900 Chicago blindfold sim – Round 13 – Pillsbury, Harry – 1-0 – Silberberg, GFriedlaender – G12 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. c4 c6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1904 London ENG – Round 6 – Shoosmith, Hector W – 1-0 – Gunsberg, Isidor – G8 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. e3 Nf6 5. Bd3 O-O 6. Nf3 Nbd7 7. O-O c6 8. Qe2 Bd6 9. e4 dxc4 10. Bxc4 e5
1908 Prague – Round 14 – Teichmann, Alexander – 1/2-1/2 – Alapin, Simon – G114 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Bd3 Be7 6. Nf3 Nbd7 7. O-O O-O 8. e4 dxe4 9. Nxe4 c5 10. Nxf6+ Bxf6
1908 Vienna – Round 17 – Swiderski, Radoslaw – 1-0 – Alapin, Simon – G165 1. d4 d5 2. Nf3 c6 3. c4 e6 4. Nc3 Nd7 5. e3 Ngf6 6. Bd3 Be7 7. O-O O-O 8. Re1 dxc4 9. Bxc4 b5 10. Bd3 b4
1911 Carlsbad – Round 1 – Leonhardt, Paul – 1-0 – Alapin, Simon – G5 1. d4 d5 2. c4 c6 3. e3 e6 4. Nc3 Nf6 5. Bd3 Nbd7 6. Nf3 Be7 7. O-O O-O 8. Qc2 Re8 9. e4 dxc4 10. Bxc4 Nf8
1924 Paris f-B – Round 3 – Grau, Roberto G – 0-1 – Koltanowski, George – G12 1. d4 c6 2. c4 d5 3. e3 Nf6 4. Nf3 e6 5. Nc3 Be7 6. Bd3 Nbd7 7. O-O O-O 8. Qe2 Qc7 9. Bd2 dxc4 10. Bxc4 Bd6
1925 Bern – Round 2 – Alekhine, Alexander – 1-0 – Naegeli, Oskar – G4 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 dxc4 9. Bxc4 b5 10. Bd3 b4
1925 DSB-24. Kongress Hauptturnier A – Round 4.5 – Mueller, Hans Georg – 0-1 – Von Holzhausen, Walther – G10 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 a6 9. e4 dxe4 10. Nxe4 Nxe4
1925 Leningrad – Round 1 – Botvinnik, Mikhail – 1-0 – Riblin, B. – G5 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. e3 e6 5. Bd3 Be7 6. Nf3 Nbd7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Bf6
1926 DSV Kongress – Round 7 – Lokvenc, Josef – 1-0 – Hilse, Wilhelm H – G27 1. d4 d5 2. Nf3 c6 3. c4 e6 4. Nc3 Nf6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 c5 10. Qe2 cxd4
1927 Kecskemet f II – Round 2 – Takacs, Sandor – 1-0 – Colle, Edgar – G7 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 c5
1927 London Olympiad 1st – Round 9.74 – Wagner, Heinrich – 1/2-1/2 – Terho, Johannes – G99 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1928 Barcelona sim – Round ? – Alekhine, Alexander – 1-0 – Alemany Puig, Lluis – G9 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. e3 O-O 6. Bd3 c6 7. O-O Nbd7 8. Qe2 b6 9. e4 dxe4 10. Nxe4 Bb7
1928 Berlin – Round 1 – Johner, Nicolas – 0-1 – Bogoljubow, Efim – G5 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 e6 5. Bd3 Nbd7 6. O-O Be7 7. Nc3 O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1928 Berlin Cafe Koenig – Round 1 – Johner, Paul – 0-1 – Bogoljubow, Efim – G2 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 e6 5. Bd3 Nbd7 6. O-O Be7 7. Nc3 O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1928 Berlin Cafe Koenig – Round 1 – Saemisch, Friedrich – 1/2-1/2 – Kostic, Boris – G1 1. d4 Nf6 2. c4 d5 3. Nc3 c6 4. e3 e6 5. Bd3 Nbd7 6. Nf3 Be7 7. O-O O-O 8. Qe2 Qc7 9. Rd1 dxc4 10. Bxc4 e5
1929 Bradley Beach – Round 3 – Fox, Mark – 0-1 – Steiner, Laszlo – G13 1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nf3 e6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 dxc4 9. Bxc4 b5 10. Bd3 b4
1929 Hastings – Round ? – Vidmar, Milan Sr – 1-0 – Winter, William – G12 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1929 Hastings – Round 1 – Vidmar Milan – 1-0 – Winter, William – G1 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1929 Karlsbad – Round 1 – Gruenfeld, Ernst – 1-0 – Maroczy, Geza – G42 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 e6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 Re8 9. Rd1 Qc7 10. Bd2 b6
1929 Ramsgate schev – Round 1 – Koltanowski, George – 1-0 – Price, Harold Edwin – G2 1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. Nf3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxc4 9. Bxc4 Re8 10. Qe2 b5
1930 Nice – Round 1 – Reilly, Brian – 1/2-1/2 – Maróczy, Géza – G5 1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. e3 e6 5. Bd3 Nbd7 6. Nc3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 c5
1931 Argentina – Round 19 – Bolbochan, J. – 1-0 – Piazzini, Luis – G58 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 dxc4 9. Bxc4 b5 10. Bd3 a6
1931 Budapest – Round 1 – Szigeti, Miklos – 0-1 – Sterk, Karoly – G4 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1931 Kautsky mem8 – Round 12 – Richter, Emil – 0-1 – Skalicka, Karel – G9 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1931 Praag predolympijsky – Round ? – Stoltz, Gosta – 1-0 – Makarczyk, Kazimierz – G6 1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 b6 9. b3 Bb7 10. Rd1 Re8
1931 Prague ol – Round 12 – Rosselli del Turco, Stefano – 0-1 – Weenink, Henri – G43 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 c5
1932 BCF Ch 25. Major Open – Round 1 – Koltanowski, George – 1-0 – Cross, Alfred Rupert Neale – G2 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 dxc4 9. Bxc4 b5 10. Bd3 b4
1932 Berlin GER – Round 1 – Ahues, Carl – 1/2-1/2 – Koch, Berthold – G2 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. e3 c6 5. Bd3 Nbd7 6. O-O Be7 7. Nc3 O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1932 Bern – Round 3 – Gygli, Fritz – 0-1 – Naegeli, Oskar – G31 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 Qc7 9. e4 dxe4 10. Nxe4 c5
1932 Bern – Round 6 – Johner, Hans – 0-1 – Bogoljubow, Efim – G51 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 dxc4 9. Bxc4 b5 10. Bb3 b4
1932 Nt Hamburg-Altona GER – Round 3 – Brinckmann, Alfred – 1/2-1/2 – Rodatz, Hans – G6 1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 dxc4 9. Bxc4 b5 10. Bd3 b4
1932 Semmering m – Round 10 – Bogoljubow, Efim – 1-0 – Spielmann, Rudolf – G10 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 b6 9. b3 Bb7 10. Bb2 c5
1932 Trebitsch mem15 – Round 1 – Hoenlinger, Baldur – 1-0 – Palda, Karl – G1 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 Re8 9. b3 Bb4 10. Bb2 dxc4
1932 Trebitsch Memorial 15th – Round 9 – Rubinstein, Simon – 0-1 – Hoenlinger, Baldur – G15 1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 Nf6 5. Bd3 Nbd7 6. O-O Be7 7. Nc3 O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1933 Folkestone Olympiad V – Round 11.3 – Glass, Eduard – 1-0 – Michell, Reginald – G37 1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. Nf3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 b6 9. e4 dxe4 10. Nxe4 Bb7
1933 Moravska Ostrava – Round ? – Pirc, Vasja – 1/2-1/2 – Steiner, Lajos – G18 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Bd3 Be7 6. O-O O-O 7. Nc3 Nbd7 8. e4 dxe4 9. Nxe4 Qc7 10. Bg5 b6
1933 Moravska Ostrava – Round 4 – Rejfir, Josef – 1/2-1/2 – Steiner, Lajos – G1 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Be7 6. O-O O-O 7. Nc3 Nbd7 8. Qe2 dxc4 9. Bxc4 b5 10. Bd3 b4
1933 Scheveningen – Round 1 – Bogoljubow, Efim – 1-0 – Felderhof, Gerard – G2 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 Re8 9. e4 dxe4 10. Nxe4 c5
1933 Scheveningen – Round 3 – Bogoljubow, Efim – 1-0 – Felderhof, William H – G5 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 Re8 9. e4 dxe4 10. Nxe4 c5
1934 Leningrad ch-URS – Round 1 – Freiman, Sergey Nikolaevich – 1/2-1/2 – Belavenets, Sergey – G153 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 b6 9. b3 Bb7 10. Bb2 c5
1936 Budapest – Round 13 – Havasi, Kornel – 1-0 – May, Dezso – G47 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1936 Budapest HUN – Round ? – Havasi, Kornel – 1-0 – Gereben, Erno – G32 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 c6 5. e3 Be7 6. Bd3 O-O 7. O-O Nbd7 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1936 Budapest HUN – Round 15 – Szabo, Ladislav – 1-0 – Balogh Moran, Andres – G22 1. c4 Nf6 2. Nf3 c6 3. d4 d5 4. Nc3 e6 5. e3 Be7 6. Bd3 O-O 7. O-O Nbd7 8. e4 dxe4 9. Nxe4 Qc7 10. Bg5 Re8
1936 Mar del Plata – Round 10 – Piazzini, Luis – 1-0 – Flores Alvarez, Rodrigo – G68 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Ne5 Bb7
1936 Mar del Plata – Round 12 – Letelier Martner, Rene – 1-0 – Bolbochan, J. – G83 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Ne5 Nxe4
1936 New York ch-USA – Round 14 – Fine, Reuben – 1/2-1/2 – Horowitz, Albert Israel – G41 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1937 Semmering – Round 1 – Menchik, Vera Frantsevna – 1-0 – Graf-Stevenson, Sonja – G2 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 Nbd7 5. e3 c6 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1938 Argentina – Round 21 – Grau, Roberto G – 1-0 – Acero Falcon, Lucas Esteban – G52 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Bd3 Nbd7 6. O-O Be7 7. Nc3 O-O 8. Qe2 Qc7 9. e4 dxe4 10. Nxe4 b6
1938 Lodz – Round 1 – Najdorf, Miguel – 1/2-1/2 – Gerstenfeld, Eduard – G40 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1939 Buenos Aires ol f-A – Round 6 – Becker, Albert – 1-0 – Feigin, Movsa – G105 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Be7 6. Bd3 Nbd7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1942 Mar del Plata – Round 8 – Canepa, Jose – 1-0 – Czerniak, Magdalena – G66 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Be7 6. Bd3 O-O 7. O-O Nbd7 8. Qe2 b6 9. cxd5 exd5 10. e4 dxe4
1944 Mar del Plata – Round 7 – Guimard, Carlos E – 0-1 – Najdorf, Miguel – G60 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Bd3 Nbd7 6. O-O Be7 7. Nc3 O-O 8. e4 dxe4 9. Nxe4 c5 10. Nxc5 Nxc5
1945 Moscow Ch – Round 1 – Alatortsev, Vladimir N. – 1-0 – Poliak, Abram – G3 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 c6 5. e3 Be7 6. Bd3 Nbd7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Bf4 Bb7
1945 Moscow RUS – Round 16 – Zagoriansky, Evgeny – 1-0 – Poliak, Abram – G18 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. e3 Nbd7 6. Bd3 O-O 7. O-O c6 8. Qe2 b6 9. b3 Bb7 10. Bb2 dxc4
1947 Moscow RUS – Round 1 – Liublinsky, Victor – 1/2-1/2 – Chistiakov, Alexander – G5 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. e3 c6 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. Qe2 Bb7
1948 Budapest – Round 14 – Benko, Pal – 1/2-1/2 – Szily, Jozsef – G77 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 b6 9. e4 dxe4 10. Nxe4 Bb7
1948 Mar del Plata – Round 16 – Denker, Arnold S – 1/2-1/2 – Sanguinetti, Ricardo – G128 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1949 Mar del Plata – Round 17 – Maderna, Carlos – 1-0 – Gentil Le Roux, Loevan – G141 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Qc7
1949 Moskou ch-URS – Round 1 – Kopylov, Nikita – 1/2-1/2 – Liublinsky, Victor – G150 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 b6 9. e4 dxe4 10. Nxe4 Bb7
1950 Southsea – Round 1 – Golombek, Harry – 1-0 – Andy Zane Wright – G1 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1950 Zlin ch CZE – Round 5 – Podgorny, Jiri – 1/2-1/2 – Richter, Emil – G7 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 c5 10. Nxc5 Nxc5
1955 Manhattan CC Ch 5556 – Round 12 – Lombardy, William J – 1-0 – Turner, Abe J – G52 1. c4 c6 2. Nf3 d5 3. d4 Nf6 4. e3 e6 5. Bd3 Nbd7 6. O-O Be7 7. Nc3 O-O 8. Qe2 b6 9. e4 dxe4 10. Nxe4 Bb7
1955 Poland ch13 – Round 18 – Doda, Zbigniew – 1/2-1/2 – Litmanowicz, Wladyslaw – G62 1. c4 Nf6 2. Nc3 c6 3. d4 d5 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1958 Munich olm prel – Round 1 – Prameshuber, Alexander – 1-0 – Benitez Diaz, Francisco Javier – G31 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Be7 6. Bd3 Nbd7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1959 New York ch-USA – Round 11 – Byrne, Ray – 1-0 – Ault, Robin – G58 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 dxc4 9. Bxc4 c5 10. Rd1 Qc7
1960 BRA-ch27 – Round 12 – Camara, Helder – 0-1 – Ammar Semi – G26 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Nbd7 5. e3 c6 6. Bd3 Be7 7. O-O O-O 8. Ne5 Qc7 9. f4 dxc4 10. Nxc4 c5
1964 ESP Ch 29th – Round 2 – Visier Segovia, Fernando – 1/2-1/2 – Bordell Rosell, Roman – G8 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1965 FRG Ch 08th – Round 5 – Eising, Johannes – 1/2-1/2 – Degenhardt, Norbert – G10 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c6 5. e3 Be7 6. Bd3 Nbd7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6
1966 Sunderland ch-BCF – Round 9 – Haygarth, Michael J – 1/2-1/2 – Knox, Victor W – G79 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 c6 5. e3 Be7 6. Bd3 Nbd7 7. O-O O-O 8. e4 dxe4 9. Nxe4 c5 10. Nxc5 Nxc5
1968 Lugano ol (Men) fin-A – Round 12 – Hort, Vlastimil – 1-0 – Reyes, Romuel – G66 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Be7 6. Bd3 O-O 7. O-O Nbd7 8. Qe2 a6 9. e4 dxe4 10. Nxe4 c5
Belgrade 1987 – Round 11 – Hjartarson, Johann – 0-1 – Ljubojevic, Ljubomir – G39 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. e4 dxe4 9. Nxe4 b6 10. b3 c5
Linares 1993 – Round 10 – Gelfand, Boris – 1-0 – Ljubojevic, Ljubomir – G39 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. Qe2 b6 9. e4 dxe4 10. Nxe4 c5

D46c — Bogoljubow

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Be7 7.O-O O-O

Les coups candidats

8.b3 — 36.8% (1169 parties) →

Ambassadeurs : Basson, Heinrich (9x), Gruenfeld, Ernst (7x), Szily, Jozsef (5x), Botvinnik, Mikhail (4x), Kottnauer, Cenek (3x), Andersen, Erik (3x), Poliak, Abram (3x), Karakehajov, Kalin (3x)

8.e4 — 27.3% (868 parties)

Ambassadeurs : Koltanowski, George (4x), Rossi, Giampiero (4x), Botvinnik, Mikhail (3x), Karakehajov, Kalin (3x), ? (2x), Regedzinski, Teodor (2x), Makarczyk, Kazimierz (2x), Winter, William (2x)

8.Qe2 — 11.1% (352 parties)

Ambassadeurs : Bogoljubow, Efim (6x), Salcedo Paez, Diana (4x), Koltanowski, George (3x), Grau, Roberto G (2x), Naegeli, Oskar (2x), Steiner, Lajos (2x), Bolbochan, J. (2x), Alekhine, Alexander (2x)

8.Qc2 — 10.4% (331 parties)

Ambassadeurs : Szukalski, Antoni (2x), Starczewska, Malgorzata (2x), Jones, Iolo C (2x), Leonhardt, Paul (1x), Alapin, Simon (1x), Winkler Andrei (1x), Brody, Miklos (1x), Factor, Samuel D (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.b3	8.e4	8.Qe2	8.Qc2
<1800	182	35%	10%	8%	16%
1800-2200	1338	34%	28%	11%	11%
2200-2600	648	41%	40%	12%	4%
2600+	9	78%	11%	11%	—

Évolution par décennie (% des parties)

Décennie	N parties	8.b3	8.e4	8.Qe2	8.Qc2
1890s	1	100%	—	—	—
1900s	4	—	50%	25%	—
1910s	1	—	—	—	100%
1920s	35	17%	57%	23%	3%
1930s	118	45%	27%	23%	3%
1940s	63	62%	21%	11%	2%
1950s	43	65%	30%	5%	—
1960s	40	50%	28%	12%	2%
1970s	52	44%	21%	15%	12%
1980s	105	39%	34%	12%	6%
1990s	520	38%	26%	11%	12%
2000s	1088	33%	29%	11%	10%
2010s	997	37%	24%	9%	13%
2020s	108	36%	35%	12%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.b3	37%	36%	-0.5%
8.e4	24%	35%	▲ +10.7%
8.Qe2	9%	12%	▲ +2.8%
8.Qc2	13%	8%	▼ -5.0%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 7 parties
Alekhine, Alexander — 4 parties
Kasparov, Garry — 2 parties
Lasker, Emanuel — 1 partie
Euwe, Max — 1 partie
Smyslov, Vladimir — 1 partie

Parties historiques

8.b3 — 36.8% (1169 parties)

1893 — Lasker, Emanuel vs Hanham, James — 1-0 — New York, NY USA
1923 — Skifters vs Lie Niels — 1-0 — Copenhagen DEN
1924 — Mackenzie, Arthur J vs Norman, George — 0-1 — Hastings Town Hall
1926 — Wallace, Albert E N vs Crane, Henry Vincent — 1-0 — Sydney AUS
1926 — Duhm, Andreas vs Von Gottschall, Hermann — 0-1 — Hannover GER

8.e4 — 27.3% (868 parties)

1900 — Pillsbury, Harry vs Silberberg, GFriedlaender — 1-0 — Chicago, IL USA
1908 — Teichmann, Alexander vs Alapin, Simon — 1/2-1/2 — Prague CZE
1923 — Alekhine, Alexander vs Nait ahmed, Azzedine — 1-0 — Boston, MA USA
1924 — Alekhine, Alexander vs Asiimwe Isaac Newton — 1-0 — Boston, MA USA
1924 — Oskam, Gerard NED2 vs Koltanowski, George BEL2 — 0-1 — Paris FRA

8.Qe2 — 11.1% (352 parties)

1904 — Shoosmith, Hector W vs Gunsberg, Isidor — 1-0 — London ENG
1924 — Grau, Roberto G vs Koltanowski, George — 0-1 — Paris FRA
1925 — Mueller, Hans Georg vs Von Holzhausen, Walther — 0-1 — Breslau GER
1925 — Alekhine, Alexander vs Naegeli, Oskar — 1-0 — Bern SUI
1928 — Alekhine, Alexander vs Alemany Puig, Lluis — 1-0 — Barcelona ESP

8.Qc2 — 10.4% (331 parties)

1911 — Leonhardt, Paul vs Alapin, Simon — 1-0 — Carlsbad CZE
1924 — Factor, Samuel D vs Reshevsky, Samuel — 1-0 — Detroit, MI USA
1931 — Szekely, Jeno vs Szigeti, Miklos — 0-1 — Budapest HUN
1935 — Winkler Andrei vs Brody, Miklos — 1-0 — Bucharest ROU
1935 — Capdevila Vallve, Jordi vs Almeda J — 1-0 — Mollet

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