D28c — QGA: Classical, 7.Qe2 Nc6

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 Nc6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

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

Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), la case forte e5, un fou actif en c4, la paire de fous et la colonne semi-ouverte c.

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. Nc3 (Développer Nb1) ; 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 d5.

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), les cases fortes b4 et d5, un avant-poste en d5, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Le fou enfermé en c1.

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

Plans. ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)) ; ...Be7 (Développer Bf8) ; ...Na5 (Attaquer Bc4) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● b7→a6, f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1)	● b4 (2v0), ● d5 (3v1)
Cases faibles	—	—
Centre	● e5 (2v1)	● d4 (3v2), ● d5 (3v1), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	4 (● 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	● d4-d5, ● e3-e4	● …e6-e5

Partie
1922 It – Round 10 – Koenig, Imre – 0-1 – Wolf Heinrich – G11 1. d4 d5 2. c4 dxc4 3. Nf3 c5 4. e3 e6 5. Bxc4 Nc6 6. O-O Nf6 7. Qe2 a6 8. Rd1 Qc7 9. dxc5 Bxc5 10. Nc3 O-O
1922 Vienna – Round 1 – Koenig, Imre – 0-1 – Wolf, Hans-Josef – G7 1. d4 d5 2. c4 dxc4 3. Nf3 c5 4. e3 e6 5. Bxc4 Nf6 6. O-O Nc6 7. Qe2 a6 8. Rd1 Qc7 9. dxc5 Bxc5 10. Nc3 O-O
1926 Semmering Panhans – Round 9 – Alekhine, Alexander – 1/2-1/2 – Janowski, Dawid – G9 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Qe2 Nc6 8. Rd1 Qc7 9. Nc3 Be7 10. Bd3 O-O
1930 Netherlands – Round 3 – Landau, Salo – 0-1 – Rubinstein, Akiba – G9 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 Qc7 9. Nc3 b5 10. Bb3 Bb7
1931 Bled – Round 1 – Alekhine, Alexander – 1-0 – Flohr, Salo – G18 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1931 Bled – Round 1 – Pirc, Vasja – 1/2-1/2 – Kashdan, Isaac – G16 1. d4 d5 2. c4 dxc4 3. Nf3 e6 4. e3 a6 5. Bxc4 Nf6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bb3 Bxc5
1932 Amsterdam/Karlsbad m – Round 4 – Euwe, Max – 1/2-1/2 – Flohr, Salo – G4 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1932 Amsterdam/Karlsbad m – Round 8 – Euwe, Max – 1-0 – Flohr, Salo – G8 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1932 Bad Sliac – Round 1 – Pirc, Vasja – 1-0 – Gonzalez May, Daniel Francisco – G15 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1932 Bad Sliac – Round 1 – Pirc, Vasja – 1/2-1/2 – Flohr, Salo – G14 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1932 Hastings3233 – Round 2 – Michell, Reginald – 1/2-1/2 – Flohr, Salo – G6 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. O-O c5 7. Qe2 Nc6 8. Nc3 b5 9. Bd3 cxd4 10. exd4 Be7
1933 Hastings3334 – Round 4 – Eliskases, Erich – 0-1 – Flohr, Salo – G20 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. Bd3 c4 10. Bc2 Nb4
1933 Leningrad – Round 1 – Chekhover, Vitaly – 1/2-1/2 – Rabinovich, Ilya Mar – G1 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1933 New York – Round 3 – Dake, Arthur William – 1-0 – Simonson, Albert – G12 1. Nf3 d5 2. c4 dxc4 3. e3 c5 4. Bxc4 Nc6 5. d4 e6 6. O-O Nf6 7. Qe2 a6 8. Rd1 Qc7 9. Nc3 Be7 10. a3 O-O
1934 Maribor – Round 3 – Pirc, Vasja – 1-0 – Spielmann, Rudolf – G13 1. d4 Nf6 2. Nf3 d5 3. c4 dxc4 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Qe2 a6 8. a3 b5 9. Ba2 Bb7 10. dxc5 Bxc5
1934 Sopron – Round 1 – Havasi, Kornel – 0-1 – Spielmann, Rudolf – G3 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. e3 dxc4 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1935 Moscow – Round 1 – Alatortsev, Vladimir N. – 0-1 – Rabinovich, Ilya Mar – G1 1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nf3 e6 5. Bd3 dxc4 6. Bxc4 c5 7. O-O Nc6 8. Qe2 a6 9. Rd1 b5 10. dxc5 Qc7
1935 Moscow – Round 16 – Goglidze, Viktor – 0-1 – Lasker, Emanuel – G74 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Nb4
1935 Warsaw olm – Round 18 – Eliskases, Erich – 1-0 – Muffang, Andre – G71 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Qe2 Nc6 8. a3 b5 9. Ba2 Bb7 10. dxc5 Bxc5
1935 Warsaw POL – Round 2 – Naegeli, Oskar – 1/2-1/2 – Book, Eero – G10 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Nb4
1935 Warsaw POL – Round 8 – Friedmann Henryk – 0-1 – Brody, Miklos – G32 1. d4 d5 2. c4 dxc4 3. e3 a6 4. Bxc4 Nf6 5. Nf3 c5 6. O-O e6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Nb4
1936 Amsterdam m – Round 8 – Landau, Salo – 0-1 – Spielmann, Rudolf – G9 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bb3 Bxc5
1936 Budapest – Round 17 – Najdorf, Miguel – 1/2-1/2 – Boros, Sandor – G64 1. d4 d5 2. c4 dxc4 3. Nf3 c5 4. e3 e6 5. Bxc4 a6 6. O-O Nc6 7. Qe2 Nf6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1936 Muenchen ol – Round 12 – Regedzinski, Teodor – 1-0 – Zinner, Emil – G31 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 Qc7 9. Nbd2 b5 10. Bd3 Bb7
1936 Podebrady – Round ? – Ståhlberg, Gideon – 1-0 – Skalicka, Karel – G73 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Qe2 Nc6 8. a3 Be7 9. dxc5 Bxc5 10. b4 Bd6
1936 Zandvoort – Round 1 – Landau, Salo – 1-0 – van Doesburgh, Gerrit Roelof Diederik – G1 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. Bd3 c4 10. Bc2 Nb4
1936 Zandvoort – Round 7 – Landau, Salo – 1/2-1/2 – Gruenfeld, Ernst – G45 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. Bd3 Bb7 10. a3 cxd4
1937 Semmering/Baden – Round 13 – Flohr, Salo – 1/2-1/2 – Capablanca, Jose – G46 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 Qc7 9. Nc3 Be7 10. a3 b5
1938 Montevideo – Round 1 – Letelier Martner, Rene – 1/2-1/2 – Maderna, Carlos – G4 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Qe2 Nc6 8. Nc3 Be7 9. Rd1 O-O 10. a3 cxd4
1944 Mar del Plata – Round 1 – Garcia Vera, Romeo – 1/2-1/2 – Maderna, Carlos – G4 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bb3 Bxc5
1944 Moskou ch-URS – Round 1 – Ragozin, Viacheslav – 1-0 – Flohr, Salo – G19 1. d4 d5 2. Nf3 c5 3. c4 dxc4 4. e3 Nf6 5. Bxc4 e6 6. O-O a6 7. Qe2 Nc6 8. a3 Qc7 9. Nc3 cxd4 10. exd4 Be7
1945 Moskou ch-URS – Round 1 – Kotov Lundqvist, Alex – 1/2-1/2 – Koblencs, Alexander – G25 1. d4 d5 2. Nf3 c5 3. c4 dxc4 4. e3 Nf6 5. Bxc4 e6 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1945 Pan American – Round 1 – Kashdan, Isaac – 1/2-1/2 – Horowitz, Albert Israel – G7 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Nb4
1945 USA-URS radio-m – Round 1 – Flohr, Salo – 1-0 – Horowitz, Albert Israel – G1 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5
1946 Londen II – Round 9 – De Winter Gallegos, Willy – 0-1 – Euwe, Max – G24 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bb3 Bxc5
1946 Nottingham ch-BCF – Round 1 – Wood, Gabriel – 1-0 – Wood, Beau – G3 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. d5 exd5 10. Bxd5 Qc7
1946 Nt Augsburg GER – Round 5 – Zemgalis, Elmars – 1-0 – Riedmiller, Max – G8 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bb3 Bxc5
1947 Mar del Plata – Round 10 – Bolbochan, J. – 1/2-1/2 – Marini, Liam – G83 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Nb4
1948 OWL Ch – Round 5 – Lachmann, Hans G – 1-0 – Haefner Erich – G7 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. Bd3 c4 10. Bc2 Nb4
1950 Bled – Round 10 – Pirc, Vasja – 1/2-1/2 – Pilnik, Herman – G54 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Qe2 Nc6 8. Nc3 cxd4 9. Rd1 Be7 10. Nxd4 Qc7
1951 Bucharest GMT 2nd – Round 7 – Milev, Zdravko – 1-0 – Makarczyk, Kazimierz – G28 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 Qc7 9. Nc3 b5 10. Bd3 Bb7
1951 Sopot – Round 11 – Szilagyi, Gyorgy Laszlo – 1-0 – Makarczyk, Kazimierz – G62 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 Qc7 9. Nc3 b5 10. Bb3 Bb7
1951 URS Ch sf – Round 17 – Averbakh, Yuri L – 1/2-1/2 – Veltmander, Iogannes – G19 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 cxd4 9. exd4 b5 10. d5 bxc4
1951 Wertheim Memorial – Round 7 – Horowitz, Albert Israel – 1-0 – Kramer, George – G38 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 a6 5. Bxc4 e6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bb3 Bxc5
1951 YUG Ch 7th – Round 7 – Rabar, Braslav – 1/2-1/2 – Andric, Dragoslav – G51 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bb3 Bxc5
1952 Liberation – Round 6 – Milic, Borislav – 1-0 – Andric, Dragoslav – G26 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O a6 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Nb4
1952 POL-ch10 – Round 11 – Szapiel, Henryk – 0-1 – Makarczyk, Kazimierz – G78 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 Qc7 9. Nc3 b5 10. Bb3 Bb7
1952 Rio de Janeiro – Round 15 – De Souza Mendes, Joao – 1-0 – Dantas, Nelson – G86 1. Nf3 Nf6 2. d4 d5 3. c4 dxc4 4. e3 a6 5. Bxc4 e6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. dxc5 Qc7 10. Bb3 Bxc5
1953 AUS Ch – Round 5 – Steiner, Lajos – 1-0 – Kuszelansky Michael – G4 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. a3 Qc7 9. Nc3 Be7 10. Bd2 O-O
1953 Opatija – Round 4 – Udovcic, Mijo – 0-1 – Fuderer, Andrija – G30 1. d4 d5 2. c4 dxc4 3. e3 a6 4. Bxc4 Nf6 5. Nf3 e6 6. O-O c5 7. Qe2 Nc6 8. Rd1 Qc7 9. a4 Be7 10. Nc3 O-O
1956 New York Rosenwald5556 – Round 1 – Bisguier, Arthur B – 1-0 – Horowitz, Albert Israel – G5 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Nc3 Be7 9. dxc5 Bxc5 10. Rd1 Qc7
1960 UKR Ch – Round 8 – Lazarev, Efim M. – 1/2-1/2 – Ousatchi, Mark – G44 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 Nc6 8. Nc3 cxd4 9. Rd1 Qc7 10. exd4 Be7
1973 Leningrad Interzonal – Round 13 – Korchnoi, Viktor – 1-0 – Radulov, Ivan – G34 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 Nc6 7. O-O a6 8. Nc3 Qc7 9. d5 exd5 10. Nxd5 Nxd5
FIDE-Wch k.o. 1999 – Round 4.2 – Kramnik, Vladimir – 1/2-1/2 – Topalov, Veselin – G106 1. d4 d5 2. c4 dxc4 3. Nf3 e6 4. e3 Nf6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. d5 exd5 10. Bxd5 Nxd5
FIDE-Wch k.o. g/25+10 1999 – Round 4.3 – Kramnik, Vladimir – 1-0 – Topalov, Veselin – G41 1. d4 d5 2. Nf3 e6 3. c4 dxc4 4. e3 Nf6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. a3 cxd4 9. Rd1 b5 10. Ba2 d3
Interpolis 1986 – Round 2 – Timman, Jan H – 1-0 – Miles, Anthony J – G5 1. Nf3 d5 2. d4 c5 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. O-O Nf6 7. Qe2 Nc6 8. Nc3 Qc7 9. Bd3 Be7 10. dxc5 Bxc5
World Blitz 2023 – Round 7.21 – Tsydypov, Zhamsaran – 1-0 – Paravyan, David – G397 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Bxc5

D28c —

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 Nc6

Eval: [+0.27]

Les coups candidats

8.Rd1 — 54.1% (494 parties)

Ambassadeurs : Flohr, Salo (10x), Euwe, Max (9x), Landau, Salo (8x), Radulov, Ivan (6x), Alekhine, Alexander (4x), Stahlberg, Gideon (4x), Gruenfeld, Ernst (3x), Pirc, Vasja (3x)

8.Nc3 — 17.9% (163 parties)

Ambassadeurs : Gruenfeld, Ernst (5x), Alekhine, Alexander (3x), Book, Eero (3x), Curdo, John (3x), Loureiro, Luiz Vasconcellos (3x), Euwe, Max (2x), Reshevsky, Samuel (2x), Rellstab, Ludwig (2x)

8.dxc5 — 11.9% (109 parties)

Ambassadeurs : Breier, Andreas (3x), Rashkovsky, Nukhim N (2x), Radulov, Ivan (2x), Sapi, Laszlo (2x), Alexieva, Silvia (2x), De Jong-Muhren, Bianca (2x), Pajeken, Jakob Leon (2x), Kmoch, Hans (1x)

8.a4 — 11.3% (103 parties) →

Ambassadeurs : Euwe, Max (2x), Reshevsky, Samuel (2x), Fine, Reuben (2x), Saemisch, Friedrich (1x), Gumprich, Kurt (1x), Vidmar, Marjeta (1x), Kmoch, Hans (1x), Rohacek, Ivan (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Rd1	8.Nc3	8.dxc5	8.a4
<1800	10	40%	50%	—	10%
1800-2200	149	66%	7%	6%	17%
2200-2600	457	55%	11%	17%	12%
2600+	26	46%	15%	23%	4%

Évolution par décennie (% des parties)

Décennie	N parties	8.Rd1	8.Nc3	8.dxc5	8.a4
1910s	1	100%	—	—	—
1920s	7	71%	14%	14%	—
1930s	61	59%	20%	5%	10%
1940s	58	57%	31%	5%	5%
1950s	44	57%	36%	2%	2%
1960s	22	32%	68%	—	—
1970s	29	38%	48%	3%	10%
1980s	49	31%	43%	16%	10%
1990s	119	47%	14%	22%	13%
2000s	183	62%	7%	15%	10%
2010s	208	58%	9%	12%	14%
2020s	132	54%	13%	11%	17%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Rd1	58%	54%	▼ -4.4%
8.Nc3	9%	13%	▲ +3.7%
8.dxc5	12%	11%	▼ -1.4%
8.a4	14%	17%	▲ +2.7%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 10 parties
Alekhine, Alexander — 7 parties
Kramnik, Vladimir — 3 parties
Lasker, Emanuel — 1 partie
Kasparov, Garry — 1 partie

Parties historiques

8.Rd1 — 54.1% (494 parties)

1910 — Alekhine, Alexander vs GoncharovRubinstei — 1-0 — Moskou consult
1922 — Koenig, Imre vs Wolf Heinrich — 0-1 — Vienna AUT
1922 — Koenig, Imre vs Wolf, Hans-Josef — 0-1 — Vienna AUT
1922 — Capablanca, Jose vs Sydney Thomas Sharp — 0-1 — Philadelphia, PA USA
1926 — Alekhine, Alexander vs Janowski, Dawid — 1/2-1/2 — Semmering AUT

8.Nc3 — 17.9% (163 parties)

1926 — Rubinstein, Akiba vs Gruenfeld, Ernst — 1-0 — Semmering AUT
1932 — Michell, Reginald vs Flohr, Salo — 1/2-1/2 — Hastings ENG
1934 — Gruenfeld, Ernst vs Lenner Leopold — 1-0 — Vienna AUT
1934 — Gruenfeld, Ernst vs Gilg, Karl — 1-0 — Klosterneuburg
1935 — Gruenfeld, Ernst vs Book, Eero — 1/2-1/2 — Warsaw POL

8.dxc5 — 11.9% (109 parties)

1927 — Buerger, Victor vs Bogoljubow, Efim — 1/2-1/2 — London ENG
1934 — Podhorzer, David vs Rosenberger, Coelestin — 1-0 — Vienna AUT
1935 — Ahues, Carl vs Roedl, Ludwig — 1-0 — Bad Nauheim
1937 — Stahlberg, Gideon vs Fine, Reuben — 1/2-1/2 — Goteborg SWE
1940 — Ernst, Wilhelm vs Kieninger, Georg — 1-0 — Cologne GER

8.a4 — 11.3% (103 parties)

1933 — Saemisch, Friedrich vs Gumprich, Kurt — 1-0 — Berlin GER
1934 — Eliskases, Erich vs Pitschak, Rudolf — 1/2-1/2 — Bad Liebenwerda
1937 — Vukovic, Sara vs Foltys, Jan — 1-0 — Rogaska Slatina
1937 — Reshevsky, Samuel vs Fine, Reuben — 1/2-1/2 — Semmering AUT
1937 — Reshevsky, Samuel vs Fine, Reuben — 1/2-1/2 — Semmering AUT

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