D93b — Gruenfeld: 5.Bf4 O-O 6.e3 c5

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3 c5 * ○ 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 b5….

Atouts. Les Blancs s'appuient sur les cases fortes b5, e5 et g5, un fou actif en f4 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et c8 et une pièce en prise (le pion en c5).

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le fou f1 et les tours a1 et h1).

Plans. Bd3 (Développer Bf1) ; 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 les cases fortes e4, g4 et f5, des avant-postes en e4 et f5 et la paire de fous.

Côté adverse. Le fou enfermé en f1 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) ; ...e6 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (3v0), ● g5 (2v0)	● e4 (2v1), ● g4 (2v0), ● f5 (2v0)
Cases faibles	—	● d5
Centre	● d4 (3v1), ● e5 (3v0)	● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 2)
Bf4	● Bf4 Actif (mob. 7)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● f1, ● 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	fermé
Ruptures	● e3-e4	● …e7-e6, ● …e7-e5

Partie
1923 DSB-23.Kongress – Round 1 – Brinckmann, Alfred – 0-1 – Post, Erhard – G2 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 c5 6. e3 O-O 7. Qb3 cxd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. Be2 Bf5
1928 Berlin Cafe Koenig – Round 3 – List, Paul – 0-1 – Helling, Karl – G14 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be2 cxd4 8. exd4 Nc6 9. O-O Bg4 10. h3 Bxf3
1933 Trebitsch Memorial 16th – Round 15 – Beutum, Sigmund – 0-1 – Hoenlinger, Baldur – G65 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Be2 cxd4 8. exd4 b6 9. O-O Bb7 10. Rc1 Nc6
1936 ARG Team Ch – Round 5 – Emiliani, J. – 0-1 – Iliesco, Juan – G10 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Rc1 cxd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. cxd5 Nxd5
1936 Munich – Round 1 – Bohosievicz – 1-0 – Roedl, Ludwig – G6 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Qb3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Ne5 Na5
1936 Olympiad (unofficial) – Round 12 – Bohosiewicz, Grzegorz – 1-0 – Roedl, Ludwig – G94 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Qb3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Ne5 Na5
1937 Semmering/Baden – Round 4 – Eliskases, Erich – 0-1 – Flohr, Salo – G15 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. cxd5 Nxd5 8. Be5 Nxc3 9. bxc3 cxd4 10. Bxg7 Kxg7
1938 Krefeld – Round 1 – Kruijer, Cornelius – 0-1 – Engels, Ludwig – G7 1. d4 d5 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bg7 5. Bf4 O-O 6. e3 c5 7. Qb3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. O-O Na5
1938 Ljubljana – Round 10 – Vidmar Milan – 1/2-1/2 – Szabo, Ladislav – G68 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. cxd5 Nxd5 8. Be5 Nc6 9. Bxg7 Kxg7 10. Qd2 cxd4
1938 Trade Unions – Round 13 – Gothilf, Solomon Borisovich – 0-1 – Lilienthal, Andor – G102 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Rc1 cxd4 8. exd4 Nc6 9. Be2 dxc4 10. Bxc4 Bg4
1939 Bournemouth – Round 1 – Abrahams, Gerald – 0-1 – Flohr, Dennis – G8 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Be5 dxc4 8. Bxc4 Nc6 9. O-O cxd4 10. exd4 b6
1939 Buenos Aires ol f-A – Round 5 – Aleman Dovo, Miguel – 0-1 – Prins, Lodewijk – G94 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be2 Nc6 8. dxc5 Qa5 9. O-O dxc4 10. Qa4 Qxc5
1940 New York ch-USA – Round 15 – Kupchik, Abraham – 1/2-1/2 – Polland David – G87 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be2 Qa5 8. O-O cxd4 9. exd4 dxc4 10. Bxc4 Nbd7
1941 Munchen – Round 9 – Nielsen, Bardur – 1-0 – Cortlever, Nico – G71 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be5 cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. O-O Nb6
1945 Mar del Plata it-8 – Round 13 – Rossetto, Hector – 0-1 – Pelikán, Jiří – G22 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Qb3 cxd4 8. exd4 Nc6 9. cxd5 Na5 10. Qb5 a6
1945 Novi Sad – Round 8 – Filipcic, Martin – 1/2-1/2 – Rabar, Braslav – G96 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. cxd5 Nxd5 8. Be5 Nc6 9. Bxg7 Kxg7 10. Nxd5 Qxd5
1946 Budapest – Round 1 – Gereben, Erno – 0-1 – Barcza, Gedeon – G5 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Qb3 cxd4 8. Nxd4 Nc6 9. cxd5 Na5 10. Qb5 a6
1946 Hastings4647 – Round 5 – Abrahams, Gerald – 1-0 – Prins, Laura – G21 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Be5 dxc4 8. Bxc4 Nc6 9. O-O Bg4 10. Be2 Qa5
1946 London-A – Round 8 – Opocensky, Karel – 1/2-1/2 – Prins, Laura – G19 1. d4 Nf6 2. c4 g6 3. Bf4 Bg7 4. Nc3 d5 5. Nf3 O-O 6. e3 c5 7. Rc1 cxd4 8. exd4 Nc6 9. Ne5 Nxe5 10. Bxe5 Bh6
1947 Schlechter Memorial – Round 1 – Keller, Hans – 0-1 – Gereben, Erno – G2 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be2 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. h3 Qb6
1948 Saltsjobaden tt – Round 1 – Nielsen, Axel – 0-1 – Ojanen, Kaarle S – G9 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Qb3 cxd4 8. exd4 dxc4 9. Bxc4 e6 10. O-O Nc6
1949 Mar del Plata – Round 3 – Pomar Salamanca, Arturo – 1/2-1/2 – Lasker, Emanuel – G40 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Rc1 cxd4 8. Nxd4 Nc6 9. Nb3 e5 10. Bg5 d4
1949 Mar del Plata – Round 4 – Gentil Le Roux, Loevan – 1/2-1/2 – Rossetto, Hector – G50 1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. cxd5 Nxd5 8. Be5 Nxc3 9. bxc3 Qa5 10. Qd2 cxd4
1950 Dubrovnik olm – Round 5 – Panagopoulos, Takis – 0-1 – Gligorić, Svetozar – G60 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Be2 cxd4 8. exd4 Nc6 9. Ne5 dxc4 10. Nxc6 bxc6
1950 HUN-ch06 – Round 1 – Koberl, Ferenc – 1-0 – Monostori, Lajos – G35 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c4 O-O 5. Nc3 d5 6. e3 c5 7. Be2 cxd4 8. exd4 dxc4 9. O-O Be6 10. Rc1 Nc6
1952 Tatranska ch CZE – Round 10 – Mikula, Ladislav – 0-1 – Pachman, Ludek – G26 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be2 cxd4 8. exd4 Nc6 9. O-O Bg4 10. h3 Bxf3
1953 Wch-jr final – Round 3 – Penrose, Jonathan – 1/2-1/2 – Sherwin, James T – G8 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Be5 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. O-O Na5
1954 ARG Ch – Round 3 – Maderna, Carlos – 1-0 – Lipiniks, Leonardo – G5 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. Bf4 d5 6. e3 c5 7. Rc1 Qa5 8. Qb3 cxd4 9. exd4 Nc6 10. cxd5 Nb4
1954 Pan American Ch 2nd – Round 4 – Goldberg, Nathan – 0-1 – Sherwin, James T – G15 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Be2 Nc6 8. O-O cxd4 9. exd4 dxc4 10. Bxc4 Bg4
1955 Argentina – Round 15 – Maderna, Carlos – 1-0 – Laurencena Lopez, Gustavo Adrian – G111 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Qb3 cxd4 8. Nxd4 dxc4 9. Bxc4 Nbd7 10. Bg3 Nh5
1955 Budapest HUN – Round 1 – Erdy, Bela – 1/2-1/2 – Grob, Henry – G1 1. d4 Nf6 2. c4 g6 3. Bf4 Bg7 4. e3 c5 5. Nc3 O-O 6. Nf3 d5 7. Be2 cxd4 8. exd4 Nc6 9. Ne5 dxc4 10. Nxc6 bxc6
1955 Long Beach US-open – Round 5 – Brandts, Paul – 1-0 – Sherwin, James T – G8 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Nxd4 10. Qxd4 Be6
1955 USSR – Round 1 – Rosenberg Morch, Mathias – 0-1 – Tal, Mikhail – G1 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. Bf4 d5 6. e3 c5 7. Be2 cxd4 8. exd4 Nc6 9. O-O b6 10. Ne5 Bb7
1956 CSR Ch – Round 18 – Marsalek, Josef – 1-0 – Holas, Josef – G167 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Qb3 cxd4 8. Nxd4 dxc4 9. Bxc4 a6 10. Bxb8 Rxb8
1956 Moscow olm prel – Round 2 – Benkner, Otto – 0-1 – Padevsky, Nikola – G46 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. h3 Nc6 8. Be2 Be6 9. Qa4 cxd4 10. exd4 dxc4
1957 USA Ch Open 58th – Round 1 – Hanken, Jerome B – 0-1 – Santasiere, Anthony – G5 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Rc1 cxd4 8. exd4 Nc6 9. Be2 dxc4 10. Bxc4 Bg4
1960 Leipzig olm prel – Round 8 – Kraidman, Yair – 1/2-1/2 – Milev, Zdravko – G278 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Nxd4 10. exd4 dxc4
1961 GDR Ch Premnitz GER – Round 7 – Golz, Werner – 0-1 – Hartmann, Claus – G29 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Be2 cxd4 8. exd4 Nc6 9. O-O Bf5 10. c5 Ne4
1961 Moscow Ch – Round ? – Vasilchuk, Yury – 0-1 – Simagin, Vladimir – G54 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be5 cxd4 8. Bxd4 dxc4 9. Bxc4 Nc6 10. Bxf6 Bxf6
1961 Moscow Ch – Round ? – Volovich, Anatoly – 0-1 – Goldberg, Grigory A – G55 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be5 cxd4 8. exd4 e6 9. c5 Nc6 10. Bd6 Re8
1961 Netanya – Round 2 – Kraidman, Yair – 1-0 – Persitz, Raaphi – G11 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Rc1 cxd4 8. exd4 Nc6 9. h3 Bf5 10. Be2 dxc4
1962 DDR-12ch – Round 12 – Golz, Werner – 1/2-1/2 – Malich, Burkhard, Dr. – G31 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Be2 cxd4 8. exd4 dxc4 9. Bxc4 Bg4 10. O-O Nfd7
1962 Hungary – Round 14 – Dozsa, Paul – 0-1 – Liptay, Laszlo Dr. – G109 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c5 6. Nf3 O-O 7. Be2 Nc6 8. dxc5 Qa5 9. O-O dxc4 10. Qa4 Qxc5
1962 URU Ch – Round 9 – Olivera, Juan Francisco – 1/2-1/2 – Silva Nazzari, Roberto – G15 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be2 Nc6 8. dxc5 Qa5 9. O-O dxc4 10. Bxc4 Qxc5
1962 Varna – Round 11 – Purevzhav, S – 1/2-1/2 – Jimenez Zerquera, Eleazar – G53 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. Bf4 d5 6. e3 c5 7. Rc1 cxd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. Be2 Be6
1964 Capablanca Memorial – Round 21 – Donner, Jan-Hein – 1-0 – Garcia Martinez, Silvino – G211 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be2 Be6 8. Ng5 Ne4 9. Ngxe4 dxe4 10. d5 Bc8
1964 Moscow RUS – Round ? – Volovich, Anatoly – 1/2-1/2 – Yudovich, Mikhail M – G40 1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. cxd5 cxd4 8. Qxd4 Nxd5 9. Be5 Nf6 10. Rd1 Bd7
1964 Tel Aviv olm – Round 1 – Rantanen, Martti – 0-1 – Milev, Zdravko – G60 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Nxd4 10. exd4 dxc4
1964 Tel Aviv olm fin-B – Round 3 – Campomanes, Florencio – 1/2-1/2 – Baxter, RWM. – G33 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Nxd4 10. Qxd4 Be6
1964 Tel Aviv olm prel – Round 6 – Rantanen, Matti – 0-1 – Milev, Zdravko – G54 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Nxd4 10. exd4 dxc4
1965 ISR Ch – Round 5 – Ben Moshe, Shalom – 0-1 – Persitz, Raaphi – G15 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Be2 cxd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. O-O Bf5
1965 Titograd – Round 12 – Cebalo, Miso – 1-0 – Sofrevski, Jovan – G84 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. Bf4 d5 6. e3 c5 7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Nxd4 10. exd4 dxc4
1966 La Habana olm prel – Round 5 – Campomanes, Florencio – 1/2-1/2 – Glauser, Hansruediger – G186 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Nxd4 10. Qxd4 Be6
1967 Halle zt – Round 1 – Zinn, Lothar – 1/2-1/2 – Uhlmann, Wolfgang – G2 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Be2 cxd4 8. exd4 Nc6 9. O-O Bg4 10. c5 Ne4
1967 ISR Ch – Round 11 – Aloni, Itzchak – 1-0 – Bar Ziv, Izak – G47 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nf3 c5 7. Be2 Nc6 8. dxc5 Qa5 9. O-O dxc4 10. Bxc4 Qxc5
1968 Cardenas/Matanzas/Santa Clara – Round 2 – Angulo Castillo, Francisco – 0-1 – Garcia Martinez, Silvino – G13 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nf3 O-O 6. e3 c5 7. Be2 Nc6 8. O-O cxd4 9. exd4 dxc4 10. Bxc4 Na5
1968 Lugano SUI – Round 7 – Camara, Helder – 0-1 – Cobo Arteaga, Eldis – G89 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. e3 c5 7. Be2 cxd4 8. exd4 Nc6 9. O-O Bg4 10. c5 Ne4
World Blitz 2022 – Round 1.88 – Petrosyan, Manuel – 1/2-1/2 – Nissinen, Niilo Man – G61 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. Rc1 cxd4 8. Nxd4 a6 9. Be2 dxc4 10. Bxc4 b5

D93b —

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3 c5

Les coups candidats

7.dxc5 — 66.6% (2587 parties) →

Ambassadeurs : Kovacs, Arthur Dr. (27x), Farago, Ivan (24x), Lukacs, Peter (20x), Grigore, George-Gabriel (19x), Sinkovics, Peter (18x), Ftacnik, Lubomir (12x), Verich, Oleg (12x), Inkiov, Ventzislav (11x)

7.Be2 — 16.0% (623 parties)

Ambassadeurs : Milev, Zdravko (3x), Beaumont, Chris R (3x), Gauche, Charles (3x), Helling, Karl (2x), Sherwin, James T (2x), Garcia Martinez, Silvino (2x), Golz, Werner (2x), Campomanes, Florencio (2x)

7.Qb3 — 4.5% (174 parties)

Ambassadeurs : Roedl, Ludwig (2x), Djurasevic, Bozidar (2x), Keil, Alexej (2x), Ang Ang Koch (2x), Kladiva, Imre (2x), Brown, Alan M (2x), Webster, Richard J (2x), Kruijer, Cornelius (1x)

7.Rc1 — 4.0% (156 parties)

Ambassadeurs : Giese, Reinhard (3x), Ramseier, Jana S. (2x), Haller, Olaf (2x), De Winter Gallegos, Willy (2x), Lamblin, Jean (2x), Opocensky, Karel (1x), Prins, Laura (1x), Pomar Salamanca, Arturo (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.dxc5	7.Be2	7.Qb3	7.Rc1
<1800	158	53%	22%	2%	6%
1800-2200	1505	58%	21%	6%	5%
2200-2600	1449	85%	7%	2%	2%
2600+	35	97%	—	—	3%

Évolution par décennie (% des parties)

Décennie	N parties	7.dxc5	7.Be2	7.Qb3	7.Rc1
1920s	3	—	33%	67%	—
1930s	26	35%	19%	19%	8%
1940s	28	39%	14%	21%	7%
1950s	39	28%	26%	26%	8%
1960s	66	45%	30%	5%	8%
1970s	138	75%	11%	2%	7%
1980s	222	74%	13%	5%	1%
1990s	549	60%	17%	5%	7%
2000s	955	65%	17%	5%	4%
2010s	1621	71%	15%	3%	3%
2020s	236	65%	16%	2%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.dxc5	71%	65%	▼ -5.8%
7.Be2	15%	16%	+0.2%
7.Qb3	3%	2%	▼ -0.8%
7.Rc1	3%	5%	▲ +2.5%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 4 parties
Kramnik, Vladimir — 3 parties
Tal, Mikhail — 2 parties
Anand, Viswanathan — 2 parties
Lasker, Emanuel — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

7.dxc5 — 66.6% (2587 parties)

1931 — Rauzer, Vsevolod vs Alatortsev, Vladimir N. — 1/2-1/2 — Moskou ch-URS
1933 — Schories, Georg vs Carls, Carl — 0-1 — Bad Pyrmont GER
1934 — Lachmann, Hans G vs Antze, Oskar — 1/2-1/2 — Aachen GER
1937 — Muilwijk, Jaap vs Felderhof, Hendrik Willem — 0-1 — NED
1937 — Levenfish, Grigory vs Botvinnik, Mikhail — 1-0 — Leningrad RUS

7.Be2 — 16.0% (623 parties)

1928 — List, Paul vs Helling, Karl — 0-1 — Berlin GER
1932 — Flohr, Salo vs Van den Bosch, Johannes — 1/2-1/2 — The Hague NED
1933 — Beutum, Sigmund vs Hoenlinger, Baldur — 0-1 — Vienna AUT
1933 — Schlage, Willi vs Helling, Karl — 1-0 — Berlin GER
1939 — Aleman Dovo, Miguel vs Prins, Lodewijk — 0-1 — Buenos Aires ARG

7.Qb3 — 4.5% (174 parties)

1923 — Brinckmann, Alfred vs Post, Erhard — 0-1 — Frankfurt GER
1928 — Johner, Paul vs Helling, Karl — 1-0 — Berlin GER
1933 — Rubinstein, Simon vs Hoenlinger, Baldur — 0-1 — Vienna AUT
1936 — Bohosievicz vs Roedl, Ludwig — 1-0 — Munich GER
1936 — Bohosiewicz, Grzegorz vs Roedl, Ludwig — 1-0 — Munich GER

7.Rc1 — 4.0% (156 parties)

1936 — Emiliani, J. vs Iliesco, Juan — 0-1 — Argentina
1938 — Gothilf, Solomon Borisovich vs Lilienthal, Andor — 0-1 — Leningrad RUS
1946 — Opocensky, Karel vs Prins, Laura — 1/2-1/2 — London ENG
1949 — Pomar Salamanca, Arturo vs Lasker, Emanuel — 1/2-1/2 — Mar del Plata ARG
1954 — Maderna, Carlos vs Lipiniks, Leonardo — 1-0 — Buenos Aires ARG

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