D90i — Gruenfeld: Schlechter, Exchange

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 c6 5.cxd5 cxd5 * ○ 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 les cases fortes e5 et g5 et la paire de fous.

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. e3 (Libérer Bf1, préparer Bd3) ; Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte f5.

Atouts. Les Noirs s'appuient sur les cases fortes e4, g4 et f5, un avant-poste en f5 et la paire de fous.

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 (le cavalier b8, les fous c8 et f8 et les tours a8 et h8).

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	—	● f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● c	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 0)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	4 (● c1, ● f1, ● a1, ● h1)	5 (● b8, ● 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	fermé
Ruptures	—	● …e7-e6, ● …e7-e5

Partie
1911 Karlsbad – Round 1 – Dus Chotimirsky, Fedor – 0-1 – Schlechter, Carl – G28 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. cxd5 cxd5 6. Bg5 Bg7 7. Qb3 e6 8. e3 O-O 9. Bd3 Nc6 10. Ne5 Qa5
1923 DSB-23.Kongress – Round 9 – Gruenfeld, Ernst – 1-0 – Wegemund, Hubert – G30 1. d4 Nf6 2. Nf3 c6 3. c4 d5 4. Nc3 g6 5. cxd5 cxd5 6. Bg5 Bg7 7. Qb3 e6 8. e3 O-O 9. Bd3 Nc6 10. Ne5 Na5
1927 London olm – Round 1 – Ruben, Carl – 1/2-1/2 – Stoltz, Gosta – G8 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Qb3 Nc6 7. e3 Bg7 8. Bd3 O-O 9. O-O a6 10. a4 Qd6
1931 Bled – Round 1 – Pirc, Vasja – 1/2-1/2 – Flohr, Salo – G11 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Qb3 O-O 9. Be2 a6 10. O-O Na5
1932 London – Round 11 – De Winter Gallegos, Willy – 1/2-1/2 – Kashdan, Isaac – G35 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 g6 6. Bf4 a6 7. Qb3 Nc6 8. e3 Na5 9. Qc2 Bg7 10. Bd3 O-O
1933 New York – Round 9 – Denker, Arnold S – 0-1 – Fine, Reuben – G24 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. h3 O-O 8. e3 Qb6 9. Qc2 Nc6 10. Bb5 Ne4
1935 GER Ch 3rd – Round 13 – Elstner, Rudolf – 0-1 – Rellstab, Ludwig – G17 1. c4 Nf6 2. Nc3 c6 3. d4 d5 4. cxd5 cxd5 5. Nf3 g6 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Be2 Qb6 10. Qc1 Bd7
1935 Warschau ol – Round ? – Pleci, Isaias – 1/2-1/2 – Romih, Max – G20 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. cxd5 cxd5 5. Nc3 g6 6. Bf4 Nc6 7. e3 Bg7 8. Bd3 O-O 9. Rc1 Bg4 10. h3 Bxf3
1938 Leningrad – Round 1 – Sokolsky, Alexey – 1/2-1/2 – Vasiliev, Viktor A – G2 1. c4 Nf6 2. Nc3 c6 3. d4 d5 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Bd3 b6 10. O-O Bb7
1938 Plymouth Jubilee – Round 4 – Menchik, Vera – 0-1 – Alekhine, Alexander – G11 1. Nf3 d5 2. d4 c6 3. c4 Nf6 4. cxd5 cxd5 5. Nc3 g6 6. Bf4 Bg7 7. Be5 O-O 8. Qb3 Nc6 9. e3 Nxe5 10. Nxe5 Qc7
1941 Munchen – Round 7 – Füster, Géza – 0-1 – Cortlever, Nico – G60 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. cxd5 cxd5 5. Nc3 g6 6. Bf4 Nc6 7. e3 Bg7 8. Bb5 O-O 9. O-O Na5 10. b4 a6
1942 Sverdlovsk – Round 10 – Sokolsky, Alexey – 1-0 – Poliak, Abram – G48 1. c4 c6 2. d4 d5 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. h3 Bf5 10. O-O Rc8
1944 Brno ch CZE – Round 8 – Pachman, Ludek – 1-0 – Olexa, Vilem – G11 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 g6 6. Bf4 Bg7 7. e3 a6 8. Be2 O-O 9. O-O Nc6 10. Ne5 Na7
1945 Moscow Ch – Round 6 – Zhivtsov, A. – 1-0 – Zagoriansky, Evgeny – G33 1. Nf3 Nf6 2. c4 c6 3. Nc3 d5 4. d4 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 a6 8. Ne5 Qb6 9. Qb3 Qb4 10. Be2 Nd7
1945 Moscow Ch – Round 9 – Fridstein, German – 1/2-1/2 – Ragozin, Viacheslav – G46 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 g6 6. Qb3 Nc6 7. Bf4 a6 8. e3 Bg7 9. Be2 O-O 10. Ne5 Na5
1946 Nt – Round 2 – Endzelins, Lucius – 1/2-1/2 – Nuernberg, Friedrich – G2 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 g6 6. Bf4 Bg7 7. Rc1 O-O 8. h3 Nc6 9. e3 Qb6 10. Qb3 Qxb3
1946 POL Ch – Round 15 – Gadalinski, Jan – 0-1 – Matkowski, Wiktor – G88 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. O-O Bf5 10. Rc1 Rc8
1947 GBR Ch 34th – Round 1 – Wood, Gabriel Jacquin – 1-0 – Fairhurst, William – G1 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Nh5 8. Be5 f6 9. Bg3 Nxg3 10. hxg3 Bg7
1950 URS Ch sf Tartu – Round 5 – Chekhover, Vitaly – 1/2-1/2 – Ebralidze, Arkhil – G4 1. c4 c6 2. d4 Nf6 3. Nc3 d5 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. O-O Bf5 10. Bxf5 gxf5
1951 URS Ch sf – Round 7 – Taimanov, Mark E – 0-1 – Lilienthal, Andor – G9 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. h3 Be6 10. O-O Rc8
1951 World Championship 19th – Round 4 – Bronstein, David I – 1/2-1/2 – Botvinnik, Mikhail – G3 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. h3 Ne4 10. Rc1 Be6
1952 URS Ch sf Leningrad RUS – Round ? – Bondarevsky, Igor – 1-0 – Kuzminykh, Evgeny – G7 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nh5 9. Be5 f6 10. Bxb8 Rxb8
1954 Amsterdam olm – Round 1 – Bolbochan, J. – 1-0 – Gudmundsson, Gardar Vidir – G20 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. h3 Bg7 8. e3 O-O 9. Be2 a6 10. Ne5 Qb6
1954 Olympiad prel I – Round 1 – Bronstein, David I – 1-0 – Cortlever, Nico – G2 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Be2 O-O 9. h3 b6 10. Ne5 Bb7
1955 Moscow Ch – Round 4 – Antoshin, Vladimir S – 1-0 – Flohr, Salo – G24 1. c4 Nf6 2. Nc3 c6 3. d4 d5 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. Ne5 Nd7 10. Nd3 e6
1957 Leningrad Ch – Round 14 – Zilber, Israel – 1-0 – Ragozin, Viacheslav – G102 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 g6 6. Bf4 Bg7 7. Bxb8 Rxb8 8. Qa4+ Bd7 9. Qxa7 O-O 10. Qa3 b5
1957 Moskou ch-URS – Round 3 – Tal, Mikhail – 1-0 – Bronstein, David I – G34 1. d4 c6 2. c4 Nf6 3. Nc3 d5 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Be2 O-O 9. O-O Nh5 10. Be5 f6
1958 Buenos Aires V – Round 7 – Bolbochan, J. – 1/2-1/2 – Estrada, Walter – G30 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. O-O Bg4 10. h3 Bxf3
1958 HUN Ch 14th – Round 4 – Kluger, Gyula – 1/2-1/2 – Szabo, Laszlo – G9 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. h3 Nd7 10. Be2 Nb6
1958 Munchen olm – Round 1 – Donner, Jan-Hein – 1/2-1/2 – Czerniak, Moshe – G3 1. c4 Nf6 2. d4 c6 3. Nc3 d5 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Be2 O-O 9. Ne5 Qb6 10. a3 a5
1959 UKR Ch – Round 8 – Sakharov, Yuri N – 1/2-1/2 – Bannik, Anatolij – G56 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. O-O Nh5 10. Bg5 h6
1960 Avantgard Ch – Round 12 – Cherbak, VP. – 1/2-1/2 – Zamikhovsky, Abram – G61 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Be2 O-O 9. Ne5 Qa5 10. O-O Nd7
1960 Leipzig olm fin-B – Round 2 – Letelier Martner, Rene – 1-0 – Johannessen, Svein – G16 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. cxd5 cxd5 5. Nf3 g6 6. Bf4 Nc6 7. e3 Bg7 8. Be2 O-O 9. Ne5 Nd7 10. Nxd7 Qxd7
1960 Sao Paulo zt – Round 1 – Bolbochan, J. – 1/2-1/2 – Estrada, Walter – G1 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Be2 b6 10. O-O Bb7
1961 GDR Ch Premnitz GER – Round 12 – Fuchs, Reinhart – 1/2-1/2 – Zinn, Lothar – G54 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nf3 Nf6 5. Nc3 g6 6. Bf4 Bg7 7. e3 O-O 8. Be2 a6 9. h3 b5 10. O-O Nbd7
1961 Rostov – Round 2 – Taimanov, Mark E – 1-0 – Ujtelky, Maximilian – G5 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Be2 Nh5 9. Bg5 h6 10. Bh4 Bf6
1962 Capablanca Memorial – Round 1 – Jimenez Zerquera, Eleazar – 1/2-1/2 – Cobo Arteaga, Eldis – G3 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. h3 Qb6 9. Qb3 Qxb3 10. axb3 Nc6
1962 Lasker Memorial – Round 14 – Udovcic, Mijo – 1/2-1/2 – Malich, Burkhard, Dr. – G15 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Bd3 Bf5 10. Ne5 Rc8
1962 Lasker Memorial Berlin-Ost – Round 10 – O'Kelly de Galway, Alberic – 1/2-1/2 – Malich, Burkhard, Dr. – G45 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Ne5 Nxe5 10. Bxe5 Ne4
1962 Mar del Plata KIM – Round 5 – Goldenberg, Edgardo – 1/2-1/2 – Rossetto, Hector – G13 1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bg5 Bg7 7. Qb3 e6 8. e3 O-O 9. Bd3 Nc6 10. O-O Qa5
1962 Varna olm – Round 1 – Ojanen, Kaarle S – 1-0 – Boutteville, Cesar – G14 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Qb6 7. Qb3 Na6 8. Qxb6 axb6 9. a3 Bd7 10. Be5 Rc8
1962 Varna olm – Round 4 – Evans, Larry Melvyn – 1-0 – Beni, Alfred – G158 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. Bxb8 Rxb8 8. Qa4+ b5 9. Qxa7 Rb7 10. Qc5 b4
1963 FRG Ch Bad Pyrmont GER – Round 4 – Lohsse, Hans Peter – 0-1 – Pfleger, Helmut, Dr. – G8 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Bd3 e6 10. O-O Ne8
1963 Pan American Ch – Round 13 – Cobo Arteaga, Eldis – 1/2-1/2 – Cadena Munoz, Juan Jose – G54 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 a6 8. h3 Nc6 9. Be2 Bd7 10. Ne5 e6 1/2-1/2
1963 Polanica Zdroj – Round 1 – Balcerowski, Witold – 1/2-1/2 – Czerniak, Magdalena – G4 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. O-O Nh5 10. Bg5 h6
1963 Rubinstein Memorial – Round 2 – Balcerowski, Witold – 1/2-1/2 – Czerniak, Moshe – G11 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. O-O Nh5 10. Bg5 h6
1964 Magdeburg – Round 14 – Starck, Bodo – 0-1 – Muehlberg, Siegfried – G49 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Nh5 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nxg3
1964 Rubinstein Memorial – Round 9 – Hort, Vlastimil – 1-0 – Czerniak, Magdalena – G36 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Be2 Qb6 10. Nb5 Qa5+
1965 Mar del Plata – Round 7 – Najdorf, Miguel – 1-0 – Pilnik, Herman – G54 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Bd3 Qb6 10. a3 a6
1966 Havana CUB – Round 2 – Balcerowski, Witold – 1-0 – Aranibar Salazar, Hilton – G11 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Bf5 9. O-O Qb6 10. Na4 Qa5
1966 URS Team Ch – Round 1 – Nikolaevsky, Yuri V – 1/2-1/2 – Semenov, Vladimir. – G1 1. c4 c6 2. Nf3 Nf6 3. Nc3 d5 4. d4 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Qb3 O-O 9. Be2 Na5 10. Qa3 Bg4
1967 FRG Ch Kiel GER – Round 6 – Cording, Harm – 1-0 – Delander, Adolf – G23 1. c4 Nf6 2. Nc3 c6 3. d4 d5 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 a6 7. e3 Bg7 8. Be2 O-O 9. O-O b6 10. Rc1 Nh5
1967 Germany – Round 1 – Ostermeyer, Peter, Dr. – 1-0 – Besser, Hans – G2 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. O-O Bg4 10. Rc1 e6
1967 Leningrad RUS – Round 1 – Osnos, Viatcheslav – 0-1 – Shekhtman, E. – G5 1. d4 Nf6 2. c4 g6 3. Nf3 c6 4. Nc3 d5 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. h3 Ne4 9. Nxe4 dxe4 10. Nd2 Qa5
1967 Reggio Emilia 6768 10th – Round 7 – Bertok, Mario Jr. – 1/2-1/2 – Ciocaltea, Victor – G23 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. O-O Bg4 10. h3 Bxf3
1968 Cardenas – Round 1 – Diaz, Joaquin, Dr. – 1/2-1/2 – Estrada Degrandi, Walter – G6 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 a6 7. e3 Bg7 8. Bd3 O-O 9. O-O Bg4 10. h3 Bxf3
1968 CSR Team Ch Harrachov – Round 1 – Kupka, Slavoj – 1/2-1/2 – Petras, Jan – G1 1. d4 d5 2. c4 c6 3. Nc3 g6 4. cxd5 cxd5 5. Nf3 Nf6 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. O-O Bf5 10. Ne5 Nxe5
1968 Hungary – Round 1 – Barczay, Laszlo – 1/2-1/2 – Bilek, Istvan – G36 1. d4 d5 2. Nf3 c6 3. c4 Nf6 4. cxd5 cxd5 5. Nc3 g6 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. O-O Nb4 10. Be5 Bg4
1968 Hungary – Round 1 – Sapi, Laszlo – 1-0 – Polgar, Istvan – G147 1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. cxd5 cxd5 5. Nc3 g6 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. h3 Be6 10. O-O Nd7
1968 Reykjavik – Round 1 – Taimanov, Mark E – 1-0 – Uhlmann, Wolfgang – G2 1. c4 c6 2. Nf3 Nf6 3. d4 g6 4. Nc3 d5 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. h3 Nc6 9. Bd3 Bf5 10. Bxf5 gxf5
1968 Sarajevo – Round 1 – Barczay, Laszlo – 1/2-1/2 – Leban, Slavko – G4 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. h3 Qb6 10. Qd2 Bf5 1/2-1/2
1969 Athene zt – Round 12 – Gheorghiu, Florin – 1-0 – Spiridonov, Nikola – G18 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Bd3 a6 10. O-O Bf5
1969 IBM-B – Round 1 – Van Scheltinga, Theo – 1/2-1/2 – Johannessen, Simon T – G4 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 O-O 9. Be2 Ne4 10. O-O Nxc3
1969 Liberation – Round 1 – Gligorić, Svetozar – 1/2-1/2 – Botvinnik, Mikhail – G1 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. Ne5 Bd7 10. O-O e6
1969 Luhacovice – Round 5 – Jansa, Vlastimil – 1-0 – Kolarov, Atanas Stefanov – G45 1. c4 Nf6 2. Nf3 c6 3. d4 d5 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. Bd3 O-O 9. h3 a6 10. O-O b5
4. Norway Chess 2016 – Round 3.2 – Aronian, Levon – 1/2-1/2 – Li, Chao – G12 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 Nc6 8. Bb5 Bd7 9. O-O O-O 10. Ne5 Ne4
43. Olympiad 2018 – Round 1.15 – Svane, Rasmus – 1-0 – Eiti, Bashir – G20 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. h3 Nc6 9. Bd3 a6 10. O-O Bf5
43. Olympiad 2018 – Round 10.17 – Parligras, Mircea-Emilian – 1/2-1/2 – Laurusas, Tomas – G639 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. h3 Ne4 9. Nxe4 dxe4 10. Nd2 f5
FIDE World Cup 2015 – Round 1.1 – Caruana, Fabiano – 1-0 – Zaibi, Amir – G7 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Bd3 Nc6 9. h3 Be6 10. O-O Rc8
World Blitz 2017 – Round 17.20 – Bu, Xiangzhi – 1-0 – Andriasian, Zaven – G877 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bg5 Bg7 7. Qb3 Nc6 8. e3 e6 9. Bd3 O-O 10. O-O h6

D90i — Schlechter Exchange

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 c6 5.cxd5 cxd5

Les coups candidats

6.Bf4 — 70.5% (1465 parties)

Ambassadeurs : Schlindwein, Rolf (6x), Meenakshi Subbaraman (5x), Arkell, Keith C (5x), Taimanov, Mark (4x), Czerniak, Moshe (4x), Malich, Burkhard, Dr. (4x), Flohr, Salo (3x), Cortlever, Nico (3x)

6.g3 — 10.8% (224 parties)

Ambassadeurs : Lechtynsky, Jiri (3x), Bolbochan, J. (2x), Komljenovic, Davorin (2x), Shvidler, Eliahu (2x), Lein, Anatoly (2x), Blodstein, Boris (2x), Godes, Dmitry R (2x), Van Amerongen-Jansen, Peggy (2x)

6.Bg5 — 6.6% (137 parties)

Ambassadeurs : Gruenfeld, Ernst (3x), Dus Chotimirsky, Fedor (1x), Schlechter, Carl (1x), Strobl, Oswald (1x), Asztalos, Lajos (1x), Dance, E. (1x), Keller-Wolff, Gustav (1x), Wegemund, Hubert (1x)

6.Qb3 — 6.2% (128 parties)

Ambassadeurs : Stoltz, Gosta (2x), Malich, Burkhard, Dr. (2x), Bagirov, Vladimir (2x), Fridstein, German (1x), Ragozin, Viacheslav (1x), Keres, Paul Petrovich (1x), Frydman, Paulino (1x), Ruben, Carl (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Bf4	6.g3	6.Bg5	6.Qb3
<1800	61	66%	8%	13%	2%
1800-2200	818	69%	12%	7%	5%
2200-2600	725	76%	10%	4%	6%
2600+	15	80%	—	7%	13%

Évolution par décennie (% des parties)

Décennie	N parties	6.Bf4	6.g3	6.Bg5	6.Qb3
1910s	6	50%	—	50%	—
1920s	3	33%	—	33%	33%
1930s	19	74%	11%	—	16%
1940s	17	71%	6%	6%	12%
1950s	29	72%	10%	7%	10%
1960s	58	79%	7%	2%	9%
1970s	34	62%	12%	6%	15%
1980s	95	64%	18%	5%	7%
1990s	359	62%	18%	8%	9%
2000s	549	71%	10%	7%	6%
2010s	763	73%	9%	6%	4%
2020s	145	80%	5%	6%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Bf4	73%	80%	▲ +6.7%
6.g3	9%	5%	▼ -4.1%
6.Bg5	6%	6%	▼ -0.5%
6.Qb3	4%	2%	▼ -2.1%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 2 parties
Alekhine, Alexander — 1 partie
Tal, Mikhail — 1 partie
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie

Parties historiques

6.Bf4 — 70.5% (1465 parties)

1913 — Marshall, Frank vs Duras, Oldrich — 1-0 — New York, NY USA
1913 — Marshall, Frank vs Důras, Oldřich — 1-0 — New York, NY USA
1914 — Gruenfeld, Leo vs Wolf, Siegfried — 1-0 — Wenen
1927 — Walter, Max vs Opocensky, Karel — 1-0 — Ceske Budejovice CZE
1931 — Pirc, Vasja vs Flohr, Salo — 1/2-1/2 — Bled SLO

6.g3 — 10.8% (224 parties)

1936 — Engel, Jindrich vs Schubert, Maksym — 0-1 — Podebrady CZE
1938 — Kuppe vs Caceres Richter, Dylan — 0-1 — Berlin GER
1940 — Raud, Anthony vs Czerniak, David — 1/2-1/2 — Buenos Aires ARG
1950 — Shainswit, George vs Cortlever, Nicolaas — 1/2-1/2 — Dubrovnik olm
1952 — Bolbochan, J. vs Bolbochan, J. — 1/2-1/2 — Mar del Plata ARG

6.Bg5 — 6.6% (137 parties)

1911 — Dus Chotimirsky, Fedor vs Schlechter, Carl — 0-1 — Carlsbad CZE
1918 — Gruenfeld, Ernst vs Asztalos, Lajos — 1/2-1/2 — Vienna AUT
1919 — Gruenfeld, Ernst vs Strobl, Oswald — 1-0 — Wenen Trebitsch
1923 — Gruenfeld, Ernst vs Wegemund, Hubert — 1-0 — Frankfurt GER
1949 — Dance, E. vs Keller-Wolff, Gustav — 1-0 — Montreal CAN

6.Qb3 — 6.2% (128 parties)

1927 — Ruben, Carl vs Stoltz, Gosta — 1/2-1/2 — London ENG
1937 — Reshevsky, Samuel vs Mikenas, Vladas — 1-0 — Kemeri LAT
1939 — Keres, Paul Petrovich vs Frydman, Paulino — 1/2-1/2 — Buenos Aires ARG
1939 — Stoltz, Gosta vs Bergqvist, Nils — 1-0 — Stockholm SWE
1945 — Fridstein, German vs Ragozin, Viacheslav — 1/2-1/2 — Moscow RUS

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