B73b — Sicilian: Dragon, Classical, 8.O-O O-O

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), les cases fortes d4, b5 et d5, des fous actifs en e2 et e3, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en g7 et c8.

Plans. Tour sur colonne d.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes g4 et e5, un avant-poste en e5, la paire de fous et la colonne semi-ouverte c.

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

Plans. ...Bf5 (Développer Bc8) ; ...d5 (Rupture) ; ...e6 (Rupture) ; ...e5 (Rupture) ; Tour sur colonne c.

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

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

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Be2	● Be2 Actif (mob. 7)
Be3	● Be3 Actif (mob. 5)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	1 (a1)	2 (c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● e4-e5, ● f2-f3	● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1902 DSB-13.Kongress Hauptturnier A – Round 9 – Mayer, Lajos – 1/2-1/2 – John, Walter – G23 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 Bd7 10. Qd2 Qc8
1904 BCF Ch 1st – Round 5 – Michell, Reginald – 0-1 – Adeyeye Joseph Palmer – G16 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 Bd7 10. Qd2 Nxd4
1905 Barmen-A – Round 1 – Alapin, Simon – 0-1 – John Wade Wec-Nyin – G7 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 a6 10. Qd2 Qc7
1905 Barmen-B – Round 1 – Reggio, Arturo – 0-1 – Kopa, Ignacy – G5 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Be2 d6 8. O-O O-O 9. h3 a6 10. Qd2 Qc7
1905 It (Men) Barmen GER – Round 12 – Reggio, Arturo – 1/2-1/2 – Marchand, Max – G129 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 Bd7 10. Qd2 Rc8
1906 Ostende – Round 1 – Mieses, Jacques – 0-1 – Swiderski, Radoslaw – G17 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 Bd7 10. f4 Rc8
1910 Hamburg Hauptturnier-B – Round 1 – Johner, Paul – 1-0 – Almeda Bauer, Mateo – G1 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 Nf6 7. Be2 O-O 8. O-O d6 9. f3 Ne8 10. Qd2 f5
1911 Karlsbad – Round 1 – Alapin, Simon – 1/2-1/2 – Chajes, Oscar – G133 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. Qd2 a6
1911 Karlsbad – Round 1 – Levenfish, Grigory – 1/2-1/2 – Cohn, Erich – G135 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. Qd2 Rc8
1911 Karlsbad – Round 1 – Suechting, Hugo – 1-0 – Chajes, Oscar – G134 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. Qd2 a6
1911 New York – Round 2 – Kreymbourg, Alfred – 0-1 – Chajes, Oscar – G6 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. Qd2 a6
1913 Havana – Round 1 – Corzo y Principe, Juan – 0-1 – Chajes, Oscar – G25 1. e4 c5 2. Nc3 Nc6 3. Nf3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. Qd2 a6
1916 Nordisk Skakforbund – Round 2 – Jacobson, Ernst – 0-1 – Marchand, Max – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. f3 Qb6 10. Rb1 Ng4
1920 Stockholm – Round 3 – Wendel, Werner – 0-1 – Bogoljubow, Efim – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. Qd2 Rc8
1922 GER-NLD – Round 2 – Wegemund, Otto – 1-0 – Schelfhout, Willem – G9 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 g6 6. Be3 Bg7 7. Be2 Nf6 8. O-O O-O 9. Bf3 Ne5 10. Nd5 Nxf3+
1922 It – Round 5 – Wolf Heinrich – 1-0 – Takacs, Sandor – G6 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. f3 h6 10. Qd2 Kh7
1922 Vienna – Round 1 – Wolf, Hans-Josef – 1-0 – Takacs, Sandor – G48 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. f3 h6 10. Qd2 Kh7
1923 Scheveningen – Round 10 – Norman Hansen, Holger – 1/2-1/2 – Euwe, Max – G91 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. h3 h6 10. Qd2 Kh7
1928 Dortmund – Round 2 – Kraemer, Adolf – 0-1 – Seitz, Jakob Adolf – G3 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. Nxc6 bxc6 10. Qd2 Re8
1930 Swinemuende – Round 9 – Pahl, Kurt – 0-1 – Richter, Kurt P – G35 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 d5 10. exd5 Nxd5
1931 Argentina – Round 3 – Piazzini, Luis – 1-0 – Iliesco, Juan – G12 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. f3 d5 10. exd5 Nxd5
1931 Moskou ch-URS – Round 1 – Ilyin Zhenevsky, Alexander – 0-1 – Kirillov, Vladimir – G77 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 Bd7 10. Qd2 Qa5
1933 Budapest HUN – Round ? – Rethy, Pal – 1-0 – Barany, F – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 a6 10. Qd2 Bd7
1933 Folkestone Olympiad 5th – Round 6.2 – Thomas, George Alan – 1/2-1/2 – Frydman, Paulino – G53 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. Qd2 Nxd4
1934 Bad Liebenwerda – Round 10 – Herzog, Franz – 0-1 – Gilg, Karl – G32 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. f4 Re8
1935 Tatatovaros – Round 16 – Merenyi, Lajos – 1-0 – Gereben, Erno – G87 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 a6 10. Qd2 Bd7
1935 Tatatovaros – Round 3 – Merenyi, Lajos – 0-1 – Von Balla, Zoltan – G19 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. h3 a6 10. Qd2 Qc7
1936 Moscow – Round 1 – Lasker, Emanuel – 0-1 – Ragozin, Viacheslav – G22 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 Bd7 10. Qd2 Rc8
1938 Bad Elster – Round 9 – Acebey Michel, Veroska – 0-1 – Engels, Ludwig – G38 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. h3 Bd7 10. f4 Rc8
1939 Buenos Aires ol f-B – Round 5 – Dulanto Rodriguez, Alessandro Augusto – 0-1 – Tsvetkov, Alexandar K – G18 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 g6 6. Be2 Bg7 7. Be3 O-O 8. O-O Nc6 9. a3 d5 10. exd5 Nxd5
1939 Buenos Aires ol prel-A – Round 3 – Laterza Luis – 0-1 – De Souza Mendes, Joao – G9 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 O-O 9. h3 d5 10. exd5 Nb4
1939 Buenos Aires ol prel-B – Round 6 – Michel, Pascal – 1/2-1/2 – Tsvetkov, Aleksandar – G23 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 O-O 9. h3 d5 10. exd5 Nxd5
1940 Berlin – Round 1 – Bogoljubow, Efim – 1/2-1/2 – Richter, Kurt – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 d5 10. exd5 Nb4
1941 GER Ch Bad Oeynhausen GER – Round 15 – Rellstab, Ludwig – 1/2-1/2 – Palme, Rudolf – G39 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. h3 d5 10. exd5 Nxd5
1941 Montevideo – Round 7 – Pons Botella, Jose Antonio – 0-1 – Luckis, Marcos – G25 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. a3 d5 10. exd5 Nxd5
1944 Moskou ch-URS – Round 1 – Ravinsky, Grigory – 0-1 – Lisitsin, Georgy – G61 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. h3 d5 10. exd5 Nxd5
1946 London-A – Round 1 – Bernstein, Olivia – 1-0 – Friedmann, O. – G2 1. e4 c5 2. Nc3 Nc6 3. Nge2 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 d5 10. exd5 Nxd5
1949 Mar del Plata – Round 15 – Pomar Salamanca, Arturo – 1/2-1/2 – Bolbochan, J. – G131 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 d5 10. Nxc6 bxc6
1949 URS Ch, semi final – Round 3 – Ratner, Boris – 1/2-1/2 – Rovner, Dmitry – G31 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. h3 d5 10. exd5 Nxd5
1950 Mar del Plata – Round 4 – Michel, Pascal – 1/2-1/2 – Eliskases, Erich – G32 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. h3 Bd7 10. Qd2 a6
1950 Vienna – Round 6 – Paoli, Enrico – 1-0 – Platt, Josef – G19 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. h3 d5 10. exd5 Nxd5
1951 Madrid – Round 15 – Canal, Esteban – 1/2-1/2 – Enevoldsen, Jens – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. f3 Nxd4 10. Bxd4 Be6
1952 Paignton Premier 2nd – Round 1 – Yanofsky, Daniel Abraham – 1-0 – Barden, Leonard – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. h3 d5 10. exd5 Nxd5
1953 Hastings ch-BCF – Round 6 – Clarke, Peter H – 1-0 – Tylor, Theodore Henry – G54 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 d5 10. exd5 Nxd5
1953 Wch U20 fin-A – Round 3 – Siemms, Ross E – 1/2-1/2 – Panno, Oscar – G8 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. h3 Bd7 10. Kh1 Qc8
1955 Mar del Plata – Round 14 – Flores Alvarez, Rodrigo – 1/2-1/2 – Panno, Oscar – G99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. h3 Bd7 10. Qd2 Rc8
1955 Marshall CC Ch 5556 – Round 11 – Bernstein, Alexander – 0-1 – Saidy, Anthony – G29 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nxc6 bxc6 10. f4 Rb8
1955 Wch U20 prel-C – Round 5 – Farre Mallofre, Miguel – 1-0 – Philippe, Georges – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. h3 Bd7 10. Nb3 a6
1958 Danmarksmesterskabet – Round 7 – Haahr, Thorkild – 0-1 – Nielsen, Hartvig – G28 1. Nf3 c5 2. e4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 g6 7. Be2 Bg7 8. O-O O-O 9. Re1 e5 10. Ndb5 Ne8
1960 Sao Paulo zt – Round 1 – Schweber, Samuel – 1/2-1/2 – Bolbochan, J. – G8 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. f3 d5 10. Nxd5 Nxd5
1962 DDR-12ch – Round 13 – Storch, Lawrence A. – 1-0 – Baumbach, Friedrich, Dr. – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d6 9. h3 Bd7 10. Qd2 Rc8
1962 Solihull Handicap – Round ?.1 – Elvins, J. – 0-1 – Griffiths, Peter C – G1 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. a3 Bd7 10. f4 Nxd4
1962 Varna olm – Round 4 – Chalkhasuren, Gonchich – 1-0 – Korning, Peter – G181 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. h3 Bd7 10. Qd2 Qc8
1962 Varna olm – Round 7 – Abdel Mohsen Ammar, Mohamed – 0-1 – Byrne, David – G314 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 O-O 9. h3 Bd7 10. Qd2 Rc8
1962 Varna olm – Round 8 – Shapiro, Gedali – 1/2-1/2 – Wade, Robert G – G363 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d6 9. f3 d5 10. Nxc6 bxc6
1963 Hoogovens-B – Round 5 – Rellstab, Ludwig – 1/2-1/2 – Ankerst, Mihael – G17 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d6 9. Nf3 a5 10. a3 Be6
1966 La Habana olm prel – Round 4 – Ko Chi – 0-1 – Bhend, Edwin – G66 1. e4 c5 2. Nf3 d6 3. Be2 Nf6 4. Nc3 Nc6 5. O-O g6 6. d4 cxd4 7. Nxd4 Bg7 8. Be3 O-O 9. h3 d5 10. exd5 Nxd5
1966 Tel Aviv 6th – Round 3 – Yanofsky, Daniel Abraham – 1/2-1/2 – Gat, Israel – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Nc6 7. Be3 Bg7 8. O-O O-O 9. h3 d5 10. exd5 Nxd5
1967 Harrachov – Round 1 – Brinck-Claussen, Bjorn – 0-1 – Arnaudov, Petar – G58 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. h3 d5 10. exd5 Nxd5
1968 Cardenas/Matanzas/Santa Clara – Round 3 – Abarca Morales, Cristian – 0-1 – Alvarez del Monte, Jose – G18 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 d6 8. O-O O-O 9. f3 Qc7 10. Nb3 a6
1968 USA Open – Round 1 – Seglins, V. – 0-1 – Sherwin, James T – G13 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d6 9. h3 Bd7 10. Qd2 Nxd4
1968 YUG Ch 23th – Round 10 – Janosevic, Dragoljub – 1/2-1/2 – Bertok, Mario Jr. – G54 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. h3 d5 10. Nxc6 bxc6
FIDE World Blitz Championship 2025 – Round 14 – Baadur Jobava – 0-1 – Vachier-Lagrave Maxime – G264 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 a5 6. O-O d6 7. h3 O-O 8. Re1 Be6 9. Nbd2 Ba7 10. a4 Ne7
FIDE World Blitz Championship 2025 – Round 16 – Javokhir Sindarov – 1-0 – Baadur Jobava – G306 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Nge2 c6 8. f3 Nbd7 9. a4 a5 10. Be3 Bc5
FIDE World Blitz Championship 2025 – Round 16 – Vachier-Lagrave Maxime – 1/2-1/2 – Daniil Dubov – G304 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6
FIDE World Rapid Championship 2025 – Round 11 – Gukesh D – 1/2-1/2 – Cristobal Henriquez Villagra – G208 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. h3 d5 10. Nxc6 bxc6
World Blitz 2021 – Round 6.33 – Zilka, Stepan – 0-1 – Salem, A.R. Saleh – G346 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d6 9. h3 Bd7 10. Qd2 a6

B73b — Dragon Classical

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O

Eval: [+0.18]

Les coups candidats

9.Nb3 — 27.9% (3300 parties) →

Ambassadeurs : Thipsay, Praveen M (20x), Aitken, James (11x), Nijboer, Friso (10x), Fluvia Poyatos, Joan (10x), Koskela, Niina (10x), Yanofsky, Daniel Abraham (9x), Spielmann, Rudolf (7x), Vink, Nico (7x)

9.Qd2 — 23.7% (2801 parties) →

Ambassadeurs : Unzicker, Wolfgang (21x), Guzzetti, Luigi Enrico (13x), Gufeld, Eduard (11x), Cladouras, Panagiotis (11x), Geller, Efim P. (10x), Radulov, Ivan (10x), Mednis, Edmar J (8x), Unzicker, Ferdinand, Dr. (8x)

9.Kh1 — 13.4% (1586 parties) →

Ambassadeurs : Barua, Dibyendu (6x), Erwich, Marc (6x), Knoppert, Erik (6x), Eliskases, Erich (4x), Kupreichik, Viktor D (4x), Proehl, Holger (4x), Spanjaard, Eduard (3x), Kindermann, Stefan (3x)

9.h3 — 13.2% (1561 parties)

Ambassadeurs : Bogoljubow, Efim (7x), Yanofsky, Daniel Abraham (7x), Chajes, Oscar (5x), Jirovsky, Petr (5x), Pfaffel, Thomas (4x), Hannweber, Markus (4x), Kovarik, Oto (4x), Ofstad, Per (4x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.Nb3	9.Qd2	9.Kh1	9.h3
<1800	596	19%	24%	14%	12%
1800-2200	4431	25%	20%	16%	16%
2200-2600	2605	37%	24%	13%	14%
2600+	47	28%	49%	6%	9%

Évolution par décennie (% des parties)

Décennie	N parties	9.Nb3	9.Qd2	9.Kh1	9.h3
1880s	12	—	33%	—	33%
1890s	15	—	40%	7%	27%
1900s	32	9%	25%	3%	34%
1910s	26	8%	23%	—	42%
1920s	50	22%	12%	8%	24%
1930s	192	35%	25%	11%	16%
1940s	257	42%	34%	5%	7%
1950s	289	34%	42%	5%	6%
1960s	261	35%	38%	7%	7%
1970s	294	34%	31%	7%	10%
1980s	589	41%	23%	12%	9%
1990s	2529	30%	20%	16%	11%
2000s	3688	27%	22%	15%	13%
2010s	3120	23%	24%	13%	17%
2020s	459	19%	26%	12%	22%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.Nb3	23%	19%	▼ -4.4%
9.Qd2	24%	26%	▲ +1.7%
9.Kh1	13%	12%	▼ -1.2%
9.h3	17%	22%	▲ +5.5%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 10 parties
Alekhine, Alexander — 9 parties
Lasker, Emanuel — 5 parties
Smyslov, Vladimir — 5 parties
Carlsen, Magnus — 3 parties
Botvinnik, Mikhail — 2 parties
Kramnik, Vladimir — 2 parties
Hou, Yifan — 2 parties
Tal, Mikhail — 1 partie
Capablanca, Jose Raul — 1 partie
Kasparov, Garry — 1 partie
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie

Parties historiques

9.Nb3 — 27.9% (3300 parties)

1909 — Spielmann, Rudolf vs Bernstein, Ossip — 0-1 — St Petersburg RUS
1909 — Spielmann, Rudolf vs Duz-Khotimirsky, Fedor Ivanovich — 1-0 — St Petersburg RUS
1909 — Capablanca, Jose vs Stuart, David — 0-1 — Philadelphia, PA USA
1918 — Mlotkowski, Stasch vs Gruer, EW. — 1/2-1/2 — Los Angeles, CA USA
1919 — Conde, Adrian G vs Marchand, Max — 1-0 — Hastings ENG

9.Qd2 — 23.7% (2801 parties)

1883 — McKenzie, George vs Bird, Henry — 1-0 — London ENG
1883 — Schottlaender, Arnold vs Bird, Henry — 1-0 — Nuerenberg GER
1883 — Leffmann, Karl vs Bird, Henry — 1/2-1/2 — Nuerenberg GER
1886 — Lipschuetz, Salomon vs Bird, Henry — 1-0 — London ENG
1891 — Mueller, Oscar Conrad vs Tinsley, Samuel — 1/2-1/2 — London ENG

9.Kh1 — 13.4% (1586 parties)

1893 — Agnivesh Albin vs Pillsbury, Harry — 1-0 — New York, NY USA
1903 — Griffith De Leon, Meidelys Danielle vs Pillsbury, Harry — 1/2-1/2 — ?
1928 — Thomas, George Alan vs Buerger, Victor — 1/2-1/2 — Tenby
1928 — Piccardt, CH. vs Spanjaard, Eduard — 1-0 — NED
1928 — Glass, Eduard vs Kmoch, Hans — 0-1 — Vienna AUT

9.h3 — 13.2% (1561 parties)

1883 — Englisch, Berthold vs Bird, Henry — 1-0 — London ENG
1883 — White, Max vs Bird, Henry — 0-1 — Nuerenberg GER
1888 — Gunsberg, Isidor vs Bird, Henry — 1-0 — Bradford/ Yorkshire
1889 — Kurschner, A. vs Tarrasch, Siegbert — 0-1 — Nuerenberg GER
1892 — Showalter, Jackson vs Lipschuetz, Salomon — 0-1 — New York, NY USA

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