E69a — King’s Indian: Fianchetto, Classical, 9.h3

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.h3 ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte g5.

Atouts. Les Blancs s'appuient sur la case forte g5 et la paire de fous.

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. Jeu au centre (rupture c6-c5).

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2.

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

Plans. ...c5 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3	● d6→e5, b7→c6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v2)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 1)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
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	fermé
Ruptures	● c4-c5, ● d4-d5	● …c6-c5, ● …d6-d5

Partie
1938 URS Ch, semi final – Round 1 – Kotov, Alexander. – 1/2-1/2 – Bohatyrchuk, Fedir Parfenovych – G14 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 c6 9. h3 Ne8 10. Be3 Qe7
1938 URS Ch, semi final – Round 1 – Pogrebissky, Iosif – 1/2-1/2 – Bohatyrchuk, Fedir Parfenovych – G13 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O c6 9. h3 Ne8 10. Be3 Qe7
1938 URS Ch, semi final – Round 1 – Veresov, Gavriil – 0-1 – Kasparian, Genrikh – G19 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 c6 9. h3 Qc7 10. Be3 Re8
1945 Tbilisi Tbilisi GEO – Round 1 – Petrosian, Tigran V – 1-0 – Arutiunov, Albert – G4 1. d4 Nf6 2. Nf3 d6 3. c4 g6 4. Nc3 Bg7 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4 c6 9. h3 Nh5 10. d5 c5
1946 Barcelona – Round 3 – Perez Perez, Francisco Jose – 0-1 – Najdorf, Miguel – G23 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
1946 Groningen – Round 6 – Steiner, Heinrich Jun. – 0-1 – Boleslavsky, Isaac – G31 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Re8 10. Re1 exd4
1948 Bad Gastein – Round 8 – Lokvenc, Josef – 1/2-1/2 – Dorn, Max – G61 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 c6
1948 Karlovy Vary – Round 1 – Molina Moller, Brando Felipe – 1-0 – Stulik, Vlastimil – G18 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Qc7 10. Be3 Nh5
1949 Budapest-Moscow – Round 7 – Bronstein, David I – 1-0 – Vajda, Arpad – G49 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1949 URS Ch, semi final – Round 6 – Ilivitsky, Georgy A – 1-0 – Kasparian, Genrikh – G55 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 Nc5
1949 Venice – Round 7 – Kottnauer, Cenek – 1-0 – Cohen zimmerman, Arbel – G53 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. e4 Nbd7 7. Nge2 e5 8. O-O exd4 9. Nxd4 Re8 10. Re1 c6
1949 Vienna – Round 9 – Foltys, Jan – 1-0 – Cs. Kovacs, Laszlo – G18 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nc3 Nbd7 6. e4 e5 7. Nge2 O-O 8. O-O exd4 9. Nxd4 c6 10. h3 Re8
1950 Venice – Round 1 – Smyslov, Vladimir – 1-0 – Primavera, Giuseppe – G11 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nc3 O-O 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Ne8 10. Re1 Nc7
1950 Venice – Round 2 – Donner, Jan-Hein – 1-0 – Paoli, Enrico – G29 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 c6
1950 Venice – Round 5 – Smyslov, Vasily – 1-0 – Primavera, Giuseppe – G51 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nc3 O-O 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Ne8 10. Re1 Nc7
1951 BCF Ch 38th – Round 1.9 – Green, Arnold Yorwarth – 0-1 – Mardle, Denis – G3 1. c4 Nf6 2. g3 e5 3. Bg2 d6 4. Nc3 Nbd7 5. Nf3 g6 6. O-O Bg7 7. d4 O-O 8. e4 c6 9. Re1 Re8 10. h3 exd4
1951 Bucharest GMT 2nd – Round 3 – Troianescu, Octav – 1-0 – Samarian, Sergiu – G11 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Nh5 10. Be3 Qe7
1951 GER Ch 14th – Round 6 – Elstner, Rudolf – 1-0 – Lange, Wilfried – G17 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 O-O 5. Nc3 d6 6. e4 Nbd7 7. Nf3 e5 8. O-O c6 9. h3 Qc7 10. Be3 exd4
1951 ITA-SUI – Round 2 – Schudel, Hans Jakob – 1-0 – Primavera, Giuseppe – G5 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 O-O 6. g3 Nbd7 7. Bg2 e5 8. O-O c6 9. h3 Qc7 10. Be3 a5
1951 Mar del Plata zt – Round 3 – Wexler, Bernardo – 0-1 – Reinhardt, Enrique – G26 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 c6
1951 Paignton Premier – Round 4 – Euwe, Max – 1-0 – Bruce, Ronald MacKay – G7 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1951 World Championship 19th – Round 21 – Botvinnik, Mikhail – 0-1 – Bronstein, David I – G17 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 c6 9. h3 Nh5 10. Be3 Qe7
1952 Havana – Round 19 – Guimard, Carlos E – 1/2-1/2 – Gligorić, Svetozar – G140 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Nh5 10. Be3 Qe7
1952 Mar del Plata – Round 8 – Cuellar Alpire, Mariana – 1-0 – Reinhardt, Enrique – G62 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. h3 c6 9. e4 Nh5 10. dxe5 dxe5
1952 POL-ch10 – Round 13 – Gadalinski, Jan – 1-0 – Wozniak, Kazimierz – G92 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4 c6 9. h3 h6 10. Be3 Kh7
1952 Rosario – Round ? – Garcia Vera, Romeo – 1/2-1/2 – Patt Rubinstein, J. – G23 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 c6 8. e4 e5 9. h3 Qc7 10. Be3 Re8
1953 Bariloche – Round 1 – Eliskases, Erich – 1/2-1/2 – Rossetto, Hector – G1 1. c4 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
1953 Hastings ch-BCF – Round 1 – Pollitt, James D – 1-0 – Clarke, Paul R H – G20 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. Nc3 e5 7. d4 Nbd7 8. h3 c6 9. e4 Nh5 10. Be3 Qe7
1953 Hastings ch-BCF – Round 5 – Davey, S. – 1-0 – Clarke, Paul R H – G51 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Nh5 10. Re1 a6
1953 Mar del Plata – Round 19 – Bolbochan, J. – 1/2-1/2 – Burgalat, Francisco J – G181 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. Re1 Re8 10. h3 exd4
1953 Wch-jr final – Round 3 – Roessel, Frits – 1-0 – Farre Mallofre, Miguel – G6 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Qc7 10. Be3 exd4
1954 Montevideo – Round 1 – Horberg, Bengt-Eric – 1-0 – Alvarez del Monte, Jose – G12 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. e4 Re8 9. Re1 exd4 10. Nxd4 Nc5
1954 Olympiad prel III – Round 3.2 – Horberg, Bengt-Eric – 0-1 – Nielsen, Peter Heine – G23 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. Re1 Re8 10. h3 exd4
1955 Ljubljana – Round 17 – Krivec Slavko – 1-0 – Paoli, Enrico – G146 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Qc7 10. Be3 Re8
1955 Wch U20 prel-B – Round 5 – Johannsson, Ingi R – 1/2-1/2 – Tringov, Georgi P – G14 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 exd4 10. Nxd4 Nc5
1956 Corr Dyckhoff Memorial – Round 1 – Heemsoth, Hermann – 1-0 – Salm Abadi, Reyhaneh – G14 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 O-O 5. Bg2 d6 6. Nc3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Nh5 10. Re1 Qe7
1956 Moscow olm fin-B – Round 9 – Uhlmann, Wolfgang – 1/2-1/2 – Ojanen, Kaarle S – G99 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
1957 Sombor – Round 12 – Gligorić, Svetozar – 1/2-1/2 – Matulovic, Milan – G117 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1958 Haifa/Tel Aviv – Round 10 – Reshevsky, Samuel – 1-0 – Dyner, Israel Boruch – G56 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 c6 7. O-O Nbd7 8. e4 e5 9. h3 exd4 10. Nxd4 Re8
1958 Haifa/Tel Aviv – Round 3 – Dunkelblum, Arthur – 1/2-1/2 – Rosenberg, Arie – G12 1. c4 Nf6 2. d4 g6 3. Nf3 Bg7 4. g3 d6 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Qc7 10. Be3 Rd8
1958 Manhattan CC Ch fin 5758 – Round 3 – Shainswit, George – 1/2-1/2 – Cohen, Harry S – G10 1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 c6 8. e4 e5 9. h3 Qc7 10. Be3 Nb6
1958 Torneo de las Americas 1st – Round 11 – Najdorf, Miguel – 1-0 – Del Pozo, Nestor – G56 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 O-O 6. O-O c6 7. Nc3 Nbd7 8. e4 e5 9. h3 h6 10. Be3 Re8
1958 World Championship 22th – Round 8 – Botvinnik, Mikhail – 1/2-1/2 – Smyslov, Vladimir – G7 1. c4 Nf6 2. Nc3 e5 3. g3 c6 4. Nf3 d6 5. Bg2 g6 6. O-O Bg7 7. d4 Nbd7 8. e4 O-O 9. h3 Ne8 10. Bg5 f6
1959 Kragujevac ch14-YUG – Round 1 – Lukic, Arsenije – 0-1 – Minev, Nikolay N – G47 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Ne8 10. Re1 Nc7
1959 Kragujevac ch14-YUG – Round 1 – Stupica, Janez – 1/2-1/2 – ? – G12 1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. Nf3 d6 6. d4 Nbd7 7. O-O e5 8. e4 c6 9. h3 Ne8 10. Re1 Qe7
1959 York ch-BCF – Round 1 – Hallmark, A. – 1/2-1/2 – Littlewood, John E – G12 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
1960 Clare Benedict Cup 07th – Round 4 – Bruzzi, Stefano – 1-0 – Cherta, Pedro – G26 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 c6 8. e4 e5 9. h3 Nh5 10. Be3 Qe8
1960 CSR Ch – Round 1 – Cucka, Josef – 1/2-1/2 – Jezek, Stanislav – G4 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1960 Reggio Emilia 6061 03rd – Round 3 – Castagna, Rino – 1-0 – Palmiotto, Fiorentino – G8 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d6 5. c4 c6 6. Nc3 O-O 7. O-O Nbd7 8. e4 e5 9. h3 h6 10. Be3 Ne8
1960 URS Ch sf – Round 16 – Peterson, Andrejs – 1/2-1/2 – Cherepkov, Alexander V – G123 1. c4 Nf6 2. Nc3 e5 3. Nf3 d6 4. g3 Nbd7 5. Bg2 g6 6. O-O Bg7 7. d4 O-O 8. h3 Re8 9. e4 exd4 10. Nxd4 Nc5
1961 GBR Ch 48th – Round 3.12 – Bernfield, Abram – 1/2-1/2 – Hollis, Adrian – G22 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. e4 d6 6. Ne2 e5 7. O-O Nbd7 8. Nbc3 exd4 9. Nxd4 Nc5 10. h3 Re8
1961 Maroczy Memorial Budapest HUN – Round 1 – Barcza, Gedeon – 0-1 – Donner, Jan-Hein – G1 1. c4 e5 2. g3 c6 3. Nf3 d6 4. Nc3 Nf6 5. Bg2 g6 6. O-O Bg7 7. e4 O-O 8. d4 Nbd7 9. h3 Ne8 10. Be3 Qe7
1962 Skopje ch17-YUG – Round 1 – Janosevic, Dragoljub – 0-1 – ? – G6 1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. Nf3 O-O 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. e4 c6 9. h3 Ne8 10. Rb1 f5
1962 Skopje ch17-YUG – Round 13 – Lukic, Arsenije – 1/2-1/2 – Marovic, Drazen – G105 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d6 5. Bg2 O-O 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Ne8 10. Re1 Qe7
1962 Stockholm Interzonal – Round 5 – Bertok, Mario Jr. – 1-0 – Cuellar Alpire, Mariana – G35 1. c4 e5 2. Nc3 Nf6 3. g3 d6 4. Bg2 g6 5. Nf3 Bg7 6. d4 Nbd7 7. O-O O-O 8. e4 c6 9. h3 Ne8 10. Re1 exd4
1962 Varna olm – Round 9 – Portisch, Lajos – 0-1 – Aaron, Manuel – G396 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 h6 10. Be3 Kh7
1963 Capablanca Memorial – Round 6 – Korchnoi, Viktor – 1-0 – Jimenez Zerquera, Eleazar – G50 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Ne8 10. Re1 Qe7
1965 Sarajevo – Round 7 – Mihaljcisin, Mihajlo – 1/2-1/2 – Bogdanovic, Radivoje – G50 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 Re8 9. Re1 c6 10. h3 exd4
1967 ROM Ch – Round 12 – Zara, Dan – 1-0 – Ungureanu, Emil – G79 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d6 5. O-O O-O 6. c4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Qc7 10. Be3 Nb6
1968 Belgrade (Women) 4th – Round 13 – Kushnir, Alla – 1-0 – Stadler, Tereza – G46 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c6 7. Nc3 Nbd7 8. e4 e5 9. h3 Nh5 10. d5 c5
1968 Hoogovens-B – Round 1 – Van Scheltinga, Theo – 1-0 – Hartoch, Robert G – G1 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 c6 9. h3 Ne8 10. Be3 Qe7
1970 Belgrade URS-World – Round 4 – Najdorf, Miguel – 1/2-1/2 – Tal, Mihail – G35 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Qb6 10. Re1 Re8
1971 Hoogovens – Round 10 – Lengyel, Laszlo – 1/2-1/2 – Najdorf, Miguel – G37 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Qb6 10. Re1 Re8
Malta ol (Men) 1980 – Round 1 – Portisch, Lajos – 1-0 – Westerinen, Heikki M.J. – G10 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nc3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Ne8 10. Re1 exd4

E69a — Fianchetto Classical

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.h3

Les coups candidats

9…Qb6 — 35.8% (4064 parties) →

Ambassadeurs : Kotronias, Vasilios (30x), Senzacqua, Fabrizio (21x), Marovic, Drazen (13x), Najdorf, Miguel (12x), Geller, Efim P. (12x), Uhlmann, Wolfgang (12x), Conterno, Dominique (12x), Bukal, Vladimir Jr. (11x)

9…Re8 — 22.2% (2521 parties) →

Ambassadeurs : Pott, Brian (13x), Cvitan, Ognjen (7x), Paramos Dominguez, Roberto (7x), Fancsy, Imre (7x), Hadraba, Vladimir (7x), Groszpeter, Attila (6x), Guindy, Esmat Susanne (6x), Uhlmann, Wolfgang (6x)

9…exd4 — 11.3% (1284 parties) →

Ambassadeurs : Strikovic, Aleksa (8x), Reshevsky, Samuel (5x), Barlov, Dragan (5x), Borriss, Claudia (4x), Konopka, Michal (4x), Sajtar, Jaroslav (3x), O'Kelly de Galway, Alberic (3x), Najdorf, Miguel (3x)

9…Qa5 — 8.9% (1006 parties) →

Ambassadeurs : ? (20x), McNab, Colin A (11x), Oratovsky, Michael (10x), Polugaevsky, Lev (9x), Belkhodja, Slim (9x), Moritz, Aron (8x), Soltis, Andrew (7x), Guimard, Carlos E (6x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Qb6	9…Re8	9…exd4	9…Qa5
<1800	131	38%	21%	7%	5%
1800-2200	3473	32%	25%	10%	6%
2200-2600	5477	39%	20%	12%	11%
2600+	95	45%	17%	8%	20%

Évolution par décennie (% des parties)

Décennie	N parties	9…Qb6	9…Re8	9…exd4	9…Qa5
1930s	7	—	43%	—	—
1940s	30	—	30%	50%	—
1950s	253	13%	26%	16%	10%
1960s	373	31%	17%	8%	21%
1970s	422	43%	23%	6%	11%
1980s	754	47%	20%	9%	6%
1990s	2934	39%	21%	12%	6%
2000s	2648	32%	23%	12%	8%
2010s	3320	36%	23%	11%	11%
2020s	625	32%	21%	10%	11%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Qb6	36%	32%	▼ -3.7%
9…Re8	23%	21%	▼ -1.5%
9…exd4	11%	10%	▼ -0.6%
9…Qa5	11%	11%	+0.5%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 10 parties
Botvinnik, Mikhail — 10 parties
Euwe, Max — 9 parties
Tal, Mikhail — 9 parties
Kasparov, Garry — 7 parties
Karpov, Aleksandr — 6 parties
Karpov, Anatoly — 6 parties
Ju, Wenjun — 2 parties
Anand, Viswanathan — 1 partie
Kramnik, Vladimir — 1 partie
Ding, Liren — 1 partie

Parties historiques

9…Qb6 — 35.8% (4064 parties)

1951 — Enevoldsen, Jens vs Ravn, Palle — 1-0 — Copenhagen DEN
1951 — Decreton Keller, Henrique vs Wade, Robert G — 1/2-1/2 — Reggio Emilia ITA
1952 — Geller, Efim P. vs Wade, Robert G — 1-0 — Saltsjobaden SWE
1953 — Bulat, Ante vs Bogdanovic, Rajko — 0-1 — Zagreb CRO
1954 — Toran Albero, Roman vs Wade, Robert G — 1-0 — Munich GER

9…Re8 — 22.2% (2521 parties)

1936 — Landau, Salo vs Schelfhout, Willem — 1-0 — Rotterdam NED
1938 — Yudovich, Mikhail M vs Duz-Khotimirsky, Fedor Ivanovich — 1/2-1/2 — URS-ch sf Kiev UKR
1938 — Yudovich M. vs Duz-Hotimirski F. — 1/2-1/2 — Kiev UKR
1944 — Veresov, Gavriil vs Lilienthal, Andor — 1/2-1/2 — Moskou ch-URS
1945 — Zita, Frantisek vs Pachman, Ludek — 1/2-1/2 — Zlin CZE

9…exd4 — 11.3% (1284 parties)

1941 — Luckis, Marcos vs Vinuesa, Juan — 0-1 — Mar del Plata ARG
1945 — Kotov Lundqvist, Alex vs Bronstein, David I — 1-0 — Moskou ch-URS
1946 — Najdorf, Miguel vs Sajtar, Jaroslav — 1-0 — Prague CZE
1947 — Novotelnov, Nikolai vs Saigin, Vladimir — 0-1 — Sverdlovsk
1947 — Novotelnov, Nikolai vs Boleslavsky, Isaac — 1/2-1/2 — Moscow RUS

9…Qa5 — 8.9% (1006 parties)

1953 — Cuellar Gacharna, Miguel vs Jauregui, Carlos — 1/2-1/2 — Mar del Plata ARG
1953 — Guimard, Carlos E vs Jauregui, Carlos — 1/2-1/2 — Mar del Plata ARG
1954 — Gimar K vs Boleslavsky, Isaac — 1/2-1/2 — Buenos Aires ARG
1954 — Guimard, Carlos E vs Boleslavsky, Isaac — 1/2-1/2 — Buenos Aires ARG
1954 — Guimard, Carlos E vs Boleslavsky, Isaac — 1-0 — Buenos Aires ARG

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