A39k — English: Symmetrical, Main Line 7.d4, 9…d6

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4 cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte e4….

Atouts. Les Blancs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), les cases fortes e4, f4, b5 et d5, un fou actif en g2, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en g7 et c8.

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

Plans. Bg5 (Clouer Nf6).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte g4….

Atouts. Les Noirs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes g4 et f5, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Le fou enfermé en c1.

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

Plans. ...Bf5 (Développer Bc8) ; ...d5 (Rupture) ; ...e6 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (3v1), ● f4 (3v0), ● b5 (2v0), ● d5 (4v1)	● g4 (2v1), ● f5 (2v0)
Cases faibles	—	—
Centre	● d5 (4v1), ● e4 (3v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Actif (mob. 7)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
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	semi-ouvert
Ruptures	● c4-c5, ● e2-e3, ● f2-f3	● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1925 Leningrad ch-URS – Round 18 – Romanovsky, Pjotr – 1-0 – Ilyin Zhenevsky, Alexander – G36 1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. Bg2 g6 5. O-O Bg7 6. d4 cxd4 7. Nxd4 O-O 8. Nc3 Nxd4 9. Qxd4 d6 10. Qh4 Qa5
1927 London Olympiad 1st – Round 4.73 – Nogues Acuna, Alejandro – 1/2-1/2 – Carls, Carl – G43 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Be3 Ng4
1930 Nice – Round 6 – Kostic, Boris – 0-1 – Thomas, George Alan – G20 1. c4 Nf6 2. Nf3 c5 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 Qc7
1940 GER Ch 7th – Round 1 – Heinicke, Herbert – 0-1 – Richter, Kurt P – G2 1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. d4 cxd4 5. Nxd4 g6 6. Bg2 Bg7 7. Nc3 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Rb8
1947 Helsinki Helsinki FIN – Round 1 – Lundin, Erik – 1-0 – Asgeirsson, Asmundur – G5 1. c4 Nf6 2. Nc3 c5 3. Nf3 g6 4. g3 Bg7 5. Bg2 Nc6 6. d4 cxd4 7. Nxd4 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Rb8
1947 Hungary – Round 5 – Gereben, Erno – 1-0 – Gecsei, Istvan – G35 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nf3 Nf6 5. O-O O-O 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Bg5 Ng4
1952 Helsinki olm – Round 1 – Heinicke, Herbert – 1-0 – Levy, Pascal – G1 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 Nf6 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 Rb8
1954 Belgrade – Round 6 – Porrecca, Giorgio – 1/2-1/2 – Milic, Borislav – G59 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. g3 g6 6. Bg2 Nxd4 7. Qxd4 Bg7 8. O-O O-O 9. Nc3 d6 10. Qh4 Re8
1955 Zittau-A 5th – Round 3 – Franz, Joachim – 1/2-1/2 – Bertholdt, Dieter – G10 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. d4 cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Qh4 Rb8
1957 Minsk zt – Round 14 – Uusi, Gunnar – 1/2-1/2 – Rozhdestvensky, Vladimir – G100 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. d4 cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Qh4 Qc7
1958 Buenos Aires CA – Round 1 – Bianco Esposito, Antonio – 0-1 – Benzaquen Friedman, Amitay – G6 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. d4 cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. b3 Qa5
1958 Haifa/Tel Aviv – Round 5 – Szabo, Laszlo – 1-0 – Dyner, Israel Boruch – G30 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O c5 5. c4 Nc6 6. d4 cxd4 7. Nxd4 O-O 8. Nc3 Nxd4 9. Qxd4 d6 10. Rd1 Be6
1958 Munich olm prel – Round 2 – Smiltiner, Shlomo – 1-0 – Lehmann, Heinz – G9 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 c5 5. Nf3 Nc6 6. d4 O-O 7. O-O cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 Qb6
1959 Asztalos Memorial – Round 1 – Portisch, Lajos – 1/2-1/2 – Bilek, Istvan – G2 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Qb6
1959 UKR Ch – Round 2 – Feldman, Steven – 0-1 – Nikolaevsky, Yuri V – G15 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. Nc3 Nxd4 9. Qxd4 d6 10. Rd1 Be6
1960 Leipzig olm prel – Round 7 – Doda, Zbigniew – 1-0 – Arun Wahi – G225 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 c5 5. Nf3 Nc6 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 Rb8
1961 GBR Ch 48th – Round 6.9 – Ansell, Jeffrey – 0-1 – Barden, Leonard – G53 1. Nf3 g6 2. g3 Bg7 3. Bg2 Nf6 4. O-O O-O 5. c4 c5 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. b3 Be6
1961 Moscow Ch – Round ? – Shamkovich, Leonid – 0-1 – Vasilchuk, Yury – G124 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. d4 cxd4 5. Nxd4 g6 6. c4 Bg7 7. Nc3 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Re8
1962 Stockholm Interzonal – Round 5 – Portisch, Lajos – 1/2-1/2 – Pomar Salamanca, Arturo – G45 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 c5 5. Nc3 Nc6 6. d4 cxd4 7. Nxd4 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Qa5
1962 Torremolinos zt – Round 1 – Gereben, Erno – 0-1 – Parma, Bruno – G47 1. Nf3 Nf6 2. d4 c5 3. g3 g6 4. Bg2 Bg7 5. O-O cxd4 6. Nxd4 O-O 7. c4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Qh4 Be6
1962 Varna olm – Round 1 – Bouwmeester, Hans – 1/2-1/2 – Pietzsch, Wolfgang – G2 1. c4 c5 2. g3 Nc6 3. Bg2 Nf6 4. Nc3 g6 5. Nf3 Bg7 6. d4 cxd4 7. Nxd4 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Rb8
1963 Capablanca Memorial – Round 20 – Cobo Arteaga, Eldis – 1/2-1/2 – De Greif, Boris – G191 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. d4 cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. b3 Be6
1963 Halle zt – Round 1 – Larsen, Benjamin Holsko – 1-0 – Kinnmark, Ove – G2 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nf6 5. Nf3 O-O 6. d4 cxd4 7. Nxd4 Nc6 8. O-O Nxd4 9. Qxd4 d6 10. Rd1 Qc7
1963 Stockholm 6364 – Round ? – Horberg, Bengt-Eric – 0-1 – Abramsson, Lars – G8 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Rb1 Bf5
1964 Amsterdam Interzonal – Round 15 – Pachman, Ludek – 1/2-1/2 – Benko, Pal – G142 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 O-O 9. O-O d6 10. Qh4 Qa5
1964 Moskou zt – Round 8 – Geller, Efim P – 1/2-1/2 – Suetin, Alexey S – G9 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 Rb8
1965 Copenhagen – Round 1 – Jakobsen, Ole – 1/2-1/2 – Janosevic, Dragoljub – G23 1. Nf3 c5 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. c4 O-O 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 a6
1965 Hastings ch-BCF – Round 11 – Clarke, Paul R H – 1/2-1/2 – Ansell, John – G116 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 c5 6. c4 Nc6 7. Nc3 Nxd4 8. Nxd4 cxd4 9. Qxd4 d6 10. b3 Ne4
1965 Reggio Emilia 6465 07th – Round 11 – Kozma, Julius – 1/2-1/2 – Bilek, Istvan – G12 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. Nc3 Nxd4 9. Qxd4 d6 1/2-1/2
1965 Santiago – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Geller, Efim P – G9 1. d4 Nf6 2. Nf3 g6 3. g3 c5 4. Bg2 cxd4 5. Nxd4 Bg7 6. c4 Nc6 7. O-O O-O 8. Nc3 Nxd4 9. Qxd4 d6 10. Qh4 Be6
1965 Sarajevo – Round 15 – Polugaevsky, Lev – 1/2-1/2 – Matulovic, Milan – G97 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. c4 Bg7 5. Nc3 Nf6 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 O-O 9. O-O d6 10. Qh4 a6
1966 Budapest Ch – Round 7 – Forintos, Gyozo V – 1-0 – Szilagyi, Gyorgy Laszlo – G11 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 c5 6. O-O cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Qh4 Rb8
1966 La Habana ol (Men) fin-B – Round 10 – Bachtiar, Arovah – 0-1 – Doda, Zbigniew – G9 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c5 6. O-O cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Qh4 Qc7
1966 La Habana olm prel – Round 2 – Carvajal Carvajal, Juan – 1-0 – Filipowicz, Andrzej – G31 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 c5 5. c4 O-O 6. Nc3 cxd4 7. Nxd4 Nc6 8. O-O Nxd4 9. Qxd4 d6 10. e4 Be6
1966 La Habana olm prel – Round 5 – Doda, Zbigniew – 1/2-1/2 – Evans, Larry M – G208 1. Nf3 g6 2. d4 Nf6 3. c4 Bg7 4. g3 c5 5. Bg2 Nc6 6. O-O O-O 7. Nc3 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qh4 Qc7
1966 Santa Monica – Round 12 – Larsen, Benjamin Holsko – 0-1 – Unzicker, Wolfgang – G52 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 c5 5. Nc3 Nc6 6. d4 cxd4 7. Nxd4 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Qa5
1966 Sukhumi – Round 1 – Keres, Paul Petrovich – 1/2-1/2 – Matanovic, Aleksandar – G1 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 Nc6 5. g3 g6 6. Bg2 Nxd4 7. Qxd4 Bg7 8. O-O O-O 9. Nc3 d6 10. Qh4 Be6
1966 URS Team Ch – Round 1 – Savon, Vladimir – 0-1 – Osnos, Viatcheslav – G4 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nf3 Nc6 5. O-O Nf6 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 d6 9. Nc3 O-O 10. Qh4 Be6
1967 Havana Armies Ch 4th – Round 17 – Sanchez Miguelez, Rafael – 0-1 – Pribyl, Josef – G98 1. c4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d6 5. Nf3 g6 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 Bg7 9. O-O O-O 10. Qh4 Qb6
1967 Moscow – Round ? – Pachman, Ludek – 1/2-1/2 – Stein, Leonid – G157 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 c5 6. O-O cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. b3 d5
1967 Moscow – Round 1 – Pachman, Ludek – 1/2-1/2 – Stein, Leonid – G84 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. c4 Nc6 7. Nc3 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. b3 d5
1967 Oxford ch-BCF – Round 4 – Webb, Samuel – 0-1 – Hartston, William R – G40 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. c4 cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Bg5 Be6
1967 YUG Ch 22th – Round 8 – Sokolov, Vladimir – 1/2-1/2 – Bukic, Enver – G38 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 c5 6. Nc3 cxd4 7. Nxd4 Nc6 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Be6
1968 Gori – Round 11 – Dzindzichashvili, Roman – 1/2-1/2 – Gufeld, Eduard – G27 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c5 5. Bg2 cxd4 6. Nxd4 Nc6 7. O-O O-O 8. Nc3 Nxd4 9. Qxd4 d6 10. Rd1 Bf5
1968 Havirov – Round 5 – Jankovec, Ivan – 0-1 – Giorgadze, Tamaz – G14 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Rd1 Be6
1968 Lugano olm - Round 1 - Porath, Yosef - 1/2-1/2 - Visier Segovia, Fernando - G364 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 c5 5. Nf3 cxd4 6. Nxd4 Nc6 7. Nc3 O-O 8. O-O Nxd4 9. Qxd4 d6 10. b3 Nd5
1968 Southend – Round 1 – Whiteley, Andrew Jonathan – 1/2-1/2 – Wright, Daniel – G4 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. g3 O-O 7. Bg2 Nc6 8. O-O Nxd4 9. Qxd4 d6 10. Qh4 Be6
1975 URS Team Ch – Round 1 – Geller, Efim P – 1-0 – Geldimamedov, Hodja – G567 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 O-O 5. Bg2 c5 6. O-O cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Qh4 Qa5
1975 URS Team Ch – Round 3 – Gulko, Boris F – 1-0 – Velibekov, A. – G557 1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O Nxd4 9. Qxd4 d6 10. Bg5 Be6
40. Olympiad Open 2012 – Round 6.12 – Adly, Ahmed – 1/2-1/2 – Nguyen, Ngoc Truong Son – G347 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. c4 c5 5. Bg2 O-O 6. O-O cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Bg5 h6
Belgrade 1989 – Round 1 – Ljubojevic, Ljubomir – 1/2-1/2 – Ehlvest, Jaan – G1 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 d6 9. O-O O-O 10. Bd2 Bd7
Las Palmas 1977 – Round 13 – Larsen, Bent – 1-0 – Pomar Salamanca, Arturo – G27 1. g3 g6 2. Bg2 Bg7 3. c4 c5 4. Nc3 Nc6 5. Nf3 Nf6 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Bg5 Be6
Moskou ch-URS 1988 – Round 14 – Vaganian, Rafael A – 1/2-1/2 – Khalifman, Alexander – G89 1. Nf3 Nf6 2. g3 c5 3. Bg2 g6 4. O-O Bg7 5. d4 cxd4 6. Nxd4 O-O 7. c4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Bd2 Ng4
World Blitz 2019 – Round 14.81 – Gukesh D – 0-1 – Zarnicki, Pablo – G983 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Bg5 a6
World Championship 28th – Round 8 – Fischer, Robert James James – 1-0 – Spassky, Boris V. – G8 1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Bg5 Be6
World Championship 28th 1972 – Round 8 – Fischer, Robert James James – 1-0 – Spassky, Boris V. – G3 1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Bg5 Be6

A39k — Symmetrical Main Line

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4 cxd4 8.Nxd4 Nxd4 9.Qxd4 d6

Les coups candidats

10.Qd3 — 60.8% (5025 parties) →

Ambassadeurs : Arkell, Keith C (31x), Cvitan, Ognjen (13x), Tocklin, Tomi (13x), Wornath, Kai (12x), Pribyl, Josef (12x), Uhlmann, Wolfgang (9x), Macieja, Bartlomiej (9x), Hernandez Onna, Roman (8x)

10.Qd2 — 10.6% (879 parties) →

Ambassadeurs : Parma, Bruno (4x), Bobotsov, Milko G (3x), Sukuba, Zdenko (3x), Khanukov, Boris (3x), Kestler, Hans-Guenther (2x), Smejkal, Jan (2x), Hort, Vlastimil (2x), Kolarov, Atanas Stefanov (2x)

10.Qh4 — 8.9% (735 parties)

Ambassadeurs : Pribyl, Josef (5x), Goluch, Piotr (4x), Malewicz, Frank (3x), Heinicke, Herbert (2x), Bouwmeester, Hans (2x), Sokolov, Vladimir (2x), Bukic, Enver (2x), Arbouche, Muhamed (2x)

10.Bg5 — 5.7% (472 parties)

Ambassadeurs : Nogueiras Santiago, Jesus (4x), Schweber, Samuel (3x), Englisch, Colya (3x), Garcia Rodriguez, Raimundo (2x), Acevedo Rodriguez, Maria Nella (2x), Pimenta, Antonio (2x), Cafferty, Bernard (2x), Kaniecki, Mikolaj (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Qd3	10.Qd2	10.Qh4	10.Bg5
<1800	177	50%	7%	7%	8%
1800-2200	3299	56%	11%	9%	6%
2200-2600	3300	68%	10%	8%	5%
2600+	77	84%	4%	1%	5%

Évolution par décennie (% des parties)

Décennie	N parties	10.Qd3	10.Qd2	10.Qh4	10.Bg5
1920s	5	20%	—	60%	—
1930s	7	29%	29%	29%	—
1940s	5	—	20%	60%	20%
1950s	26	15%	35%	31%	—
1960s	182	45%	26%	18%	1%
1970s	280	65%	10%	10%	8%
1980s	477	67%	9%	7%	6%
1990s	1549	64%	9%	7%	5%
2000s	2112	59%	12%	9%	6%
2010s	3120	61%	10%	10%	6%
2020s	501	60%	12%	7%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Qd3	61%	60%	▼ -0.8%
10.Qd2	10%	12%	▲ +2.5%
10.Qh4	10%	7%	▼ -2.6%
10.Bg5	6%	4%	▼ -1.8%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 7 parties
Smyslov, Vladimir — 6 parties
Kasparov, Garry — 6 parties
Anand, Viswanathan — 4 parties
Carlsen, Magnus — 4 parties
Kramnik, Vladimir — 3 parties
Ju, Wenjun — 3 parties
Euwe, Max — 1 partie
Karpov, Anatoly — 1 partie
Karpov, Aleksandr — 1 partie
Gukesh D — 1 partie

Parties historiques

10.Qd3 — 60.8% (5025 parties)

1928 — Menchik, Vera vs Koltanowski, George — 1/2-1/2 — Tenby
1931 — Pikler, Robert vs Lovas, Gyula — 1-0 — Budapest HUN
1934 — Reinhardt, Enrique vs Antze, Oskar — 1-0 — Aachen GER
1953 — Fuchs, Reinhart vs Knothe, Karl — 1/2-1/2 — GDR-ch Jena GER
1955 — Pithart, Frantisek vs Ujtelky, Maximilian — 1-0 — Prague CZE

10.Qd2 — 10.6% (879 parties)

1933 — Rejfir, Josef vs Glass, Eduard — 1/2-1/2 — Folkestone ENG
1939 — Lokvenc, Josef vs Roess, L. — 1/2-1/2 — Bad Elster
1944 — Sajtar, Jaroslav vs Pachman, Ludek — 1/2-1/2 — Brno ch CZE
1950 — Denker, Arnold S vs Rabar, Bakhtyar Hamasaleh — 1-0 — Radio
1952 — Pithart, Frantisek vs Jost, Felix — 1-0 — Helsinki olm

10.Qh4 — 8.9% (735 parties)

1924 — Euwe, Max vs Colle, Edgar — 1-0 — Zutphen m
1925 — Anaya, Ogger Carlos vs Villegas, Benito — 1/2-1/2 — Montevideo URU
1925 — Romanovsky, Pjotr vs Ilyin Zhenevsky, Alexander — 1-0 — Leningrad ch-URS
1930 — Kostic, Boris vs Thomas, George Alan — 0-1 — Nice FRA
1937 — Weiss, Adam vs Schoenmann, Wilhelm — 1-0 — cr.

10.Bg5 — 5.7% (472 parties)

1947 — Gereben, Erno vs Gecsei, Istvan — 1-0 — Budapest HUN
1966 — Webb, Simon vs Enticknap, Jonathan G — 1-0 — Sunderland
1967 — Webb, Samuel vs Hartston, William R — 0-1 — Oxford ch-BCF
1971 — Donnert, Milan vs Mutina, Antonin — 1-0 — Havirov CZE
1972 — Fischer, Robert J vs Spassky, Boris V. — 1-0 — Reykjavik ISL

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