E68h — King’s Indian: Fianchetto, Classical, 8.e4 exd4 9.Nxd4 Re8 10.h3 Nc5 11.Re1 a5

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 exd4 9.Nxd4 Re8 10.h3 Nc5 11.Re1 a5 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu au centre (rupture e4-e5).

Atouts. Les Blancs s'appuient sur un contrôle dominant de f4, b5 et d5 et la colonne semi-ouverte d.

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

Plans. Qc2 (26 % des parties) ; b3 (Préparer le fianchetto — 21 % des parties) ; Ndb5 (20 % des parties) ; Rb1 (16 % des parties) ; Bf4 (Fou actif (mobilité 7), Développer c1 — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter l'avant-poste c5….

Atouts. Les Noirs s'appuient sur un contrôle dominant de e5, des avant-postes en c5 et e5 et la colonne semi-ouverte e.

Côté adverse. Un mauvais fou en g2.

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

Plans. ...c6 (Renforcer le centre — 23 % des parties) ; ...Nfd7 (22 % des parties) ; ...Bd7 (Fou actif (mobilité 8), Développer c8 — 20 % des parties) ; ...a4 (13 % des parties) ; ...h6 (6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3	● c7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● b5 (3v0), ● d5 (3v1)	● e5 (2v0)
Cases faibles	● e4	—
Centre	● d4 (1v0), ● d5 (3v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Mauvais (mob. 3)
Bg7		● Bg7 Ok (mob. 3)
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	mobile
Ruptures	● e4-e5	● …d6-d5

Partie
1942 Moscow Ch – Round 1 – Lilienthal, Andor – 1/2-1/2 – Boleslavsky, Isaac – G16 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
1945 Moscow Ch – Round 16 – Ragozin, Viacheslav – 1-0 – Konstantinopolsky, Alexander – G90 1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. g3 g6 5. Bg2 Bg7 6. O-O e5 7. Nc3 O-O 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
1946 American Continental – Round 1 – Marini Speca, Gioia – 1/2-1/2 – Bolbochan, J. – G1 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. g3 Bg7 5. Bg2 O-O 6. d4 e5 7. Nge2 Nbd7 8. O-O Re8 9. h3 exd4 10. Nxd4 Nc5
1946 NED Ch prelim I – Round 7 – Euwe, Max – 1-0 – Fontein, George – G15 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 Re8 9. h3 exd4 10. Nxd4 Nc5
1947 Leningrad ch-URS – Round 6 – Alatortsev, Vladimir N. – 1-0 – Kan, Ilya A – G73 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
1948 Belgrade ch-YUG – Round 16 – Subaric, Mladen – 0-1 – Gligorić, Svetozar – G16 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 Nc5 10. h3 Re8
1948 Saltsjobaden Interzonal – Round 13 – Pachman, Ludek – 0-1 – Lilienthal, Andor – G117 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O Nbd7 7. Nc3 e5 8. h3 Re8 9. e4 exd4 10. Nxd4 Nc5
1948 Saltsjobaden Interzonal – Round 15 – Pirc, Vasja – 1-0 – Najdorf, Miguel – G140 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
1948 US Open – Round 1 – Kramer, George – 1-0 – Whitaker, Norman – G2 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. g3 Nbd7 7. Bg2 e5 8. O-O exd4 9. Nxd4 Re8 10. h3 Nc5
1949 AUT-CSR Vienna AUT – Round 2 – Sajtar, Jaroslav – 1/2-1/2 – Busek, Hans – G11 1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. Nc3 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O e5 8. h3 Re8 9. e4 exd4 10. Nxd4 Nc5
1949 Baarn – Round 6 – Kramer, Haije – 1-0 – Tordion Serge – G18 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 O-O 6. Bg2 Nbd7 7. Nge2 e5 8. O-O Re8 9. h3 exd4 10. Nxd4 Nc5
1949 Hastings4950 – Round 8 – Winser, William Arthur – 1-0 – Wood, Beau – G33 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. e4 Nbd7 6. Ne2 O-O 7. O-O e5 8. Nbc3 exd4 9. Nxd4 Nc5 10. h3 Re8
1949 Leningrad – Round 16 – Krogius, Nikolai V – 0-1 – Tarasov, Vitaly – G116 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 Re8 10. h3 Nc5
1949 Moskou ch-URS – Round 1 – Levenfish, Grigory – 0-1 – Petrosian, Tigran A. – G72 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 Re8 9. Re1 a5 10. h3 exd4
1949 URS Ch, semi final – Round 3 – Chekhover, Vitaly – 1-0 – Duz-Khotimirsky, Fedor Ivanovich – G29 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. g3 g6 5. Bg2 Bg7 6. e4 O-O 7. Nge2 e5 8. O-O exd4 9. Nxd4 Nc5 10. h3 Re8
1950 GDR Ch – Round 6 – Schlieder, Rolf – 1/2-1/2 – Ullrich Bruno – G9 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. h3 Nc5
1950 It (Men) Amsterdam NED – Round 6 – Van den Berg, Cees – 1/2-1/2 – Gligoric, Sofija – G2 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
1950 Moskou ch-URS – Round 1 – Borisenko, Georgy K – 1-0 – Geller, Efim P – G57 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 exd4 9. Nxd4 Nc5 10. h3 Re8
1950 USSR – Round 1 – Alatortsev, Vladimir N. – 1-0 – Kan, V – 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 exd4 9. Nxd4 Nc5 10. h3 Re8
1951 GDR Ch – Round 3 – Ruppe, Otto – 0-1 – Pietzsch, Wolfgang – G5 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
1951 Moskou ch-URS – Round 1 – Petrosian, Tigran A. – 1-0 – Kotov Lundqvist, Alex – G35 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 exd4 9. Nxd4 a5 10. h3 Nc5
1951 Schlechter Memorial – Round ? – Gruenfeld, Ernst – 1/2-1/2 – Nestler, Vincenzo – G15 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. h3 Nc5
1951 URS Ch sf – Round 17 – Novotelnov, Nikolai – 1-0 – Tarasov, Vitaly – G25 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
1952 Budapest – Round 2 – Botvinnik, Mikhail – 0-1 – Geller, Efim P – G24 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
1952 Havana – Round 13 – Horowitz, Albert Israel – 1-0 – Aguilar Aleman, Diego Ignacio – G107 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. Nf3 Nbd7 5. g3 Bg7 6. Bg2 O-O 7. O-O e5 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1952 Havana – Round 5 – Najdorf, Miguel – 1-0 – Planas Gene, Juan – G61 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O e5 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1952 Helsinki olm – Round 1 – Porath, Yosef – 1/2-1/2 – Donner, Jan – G104 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
1952 Helsinki olm – Round 8.2 – Bolbochan, J. – 1-0 – Skold, Kent-Ake – G9 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 exd4 9. Nxd4 Re8 10. Re1 a5
1952 JUG Ch – Round 16 – Ivkov, Borislav – 0-1 – Gligorić, Svetozar – G101 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 Nc5
1952 Mar del Plata – Round 3 – Bolbochan, J. – 1-0 – Reinhardt, Enrique – G20 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 exd4 9. Nxd4 Re8 10. h3 Nc5
1952 Mar del Plata – Round 4 – Pinzon Solis, Felipe – 0-1 – Reinhardt, Enrique – G29 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 exd4 9. Nxd4 Re8 10. h3 Nc5
1952 Moscow RUS – Round 6 – Glotov, Vitaly – 1-0 – Lilienthal, Andor – G7 1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. Nc3 e5 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
1952 Moskou ch-URS – Round 1 – Lipnitsky, Isaac – 0-1 – Boleslavsky, Isaac – G71 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 Nc5 10. h3 Re8
1953 Bucharest – Round 3 – Smyslov, Vladimir – 1/2-1/2 – Ciocaltea, Victor – G25 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 d6 5. d4 O-O 6. Nf3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
1953 Candidats Tournament – Round 1 – Stahlberg, Gideon – 1/2-1/2 – Boleslavsky, Isaac – 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 Re8 9. h3 exd4 10. Nxd4 Nc5
1953 Candidats Tournament – Round 19 – Averbakh, Yuri L – 1/2-1/2 – Bronstein, David I – G124 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
1953 Candidats Tournament – Round 21 – Stahlberg, Gideon – 1/2-1/2 – Reshevsky, Samuel – G138 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. h3 Nc5
1953 Candidats Tournament – Round 30 – Averbakh, Yuri L – 1/2-1/2 – Geller, Efim P – G199 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 Re8 9. h3 exd4 10. Nxd4 Nc5
1953 Candidats Tournament – Round 7 – Euwe, Max – 1/2-1/2 – Gligorić, Svetozar – G44 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
1953 CSR Ch – Round 5.4 – Zita, Frantisek – 1-0 – Kozma, Julius – G4 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
1953 ITA-ch16 – Round 1 – Primavera, Giuseppe – 1/2-1/2 – Nestler, Vincenzo – G1 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. e4 e5 7. Nge2 Nbd7 8. O-O exd4 9. Nxd4 Re8 10. Re1 Nc5
1953 POL-ch11 – Round 3 – Szapiel, Henryk – 1-0 – Doda, Zbigniew – G16 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 exd4 9. Nxd4 Nc5 10. h3 Re8
1953 POL-ch11 – Round 7 – Gadalinski, Jan – 1-0 – Doda, Zbigniew – G42 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1953 Wch-jr final – Round 6 – Panno, Oscar – 1-0 – Sherwin, James T – G14 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. h3 Nc5
1953 Wenen AUT-URS – Round 1.7 – Platt, Josef – 1/2-1/2 – Lilienthal, Andor – G4 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 exd4 9. Nxd4 Nc5 10. h3 Re8
1954 Bucharest – Round 1 – O'Kelly, Albéric de Galway – 1/2-1/2 – Ciocaltea, Victor – G10 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
1954 Bucharest – Round 8 – O'Kelly, Albéric de Galway – 1/2-1/2 – Nezhmetdinov, Rashid – G70 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
1954 Buenos Aires ch ARG – Round 6 – Idigoras Guisasola, Gregorio – 1-0 – Rossetto, Hector – G7 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. Re1 a5 10. h3 exd4
1954 Leningrad RUS – Round 1 – Furman, Slavomir – 1-0 – Tolush, Alexander – G8 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 Nc5 10. h3 Re8
1954 Montevideo – Round 1 – Bauza, Lorenzo – 1-0 – Alvarez del Monte, Jose – G24 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. d4 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 Re8 9. Re1 exd4 10. Nxd4 Nc5
1954 Montevideo – Round 1 – Toran Albero, Roman – 1-0 – Alvarez del Monte, Jose – G13 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
1954 Prague zt – Round 4 – Olafsson, Fridrik – 1-0 – Ciocaltea, Victor – G21 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
1954 Prague zt Prague CZE – Round 17 – Solin, Ilya – 0-1 – Stahlberg, Gideon – G54 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. d4 O-O 6. Ne2 e5 7. O-O exd4 8. Nxd4 Re8 9. Nc3 Nbd7 10. Re1 a5
1955 Budapest – Round 1 – Kluger, Gyula – 1/2-1/2 – Erdy, Bela – G40 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 Re8 9. h3 exd4 10. Nxd4 Nc5
1955 Long Beach US-open – Round 12 – Saidy, Anthony – 1-0 – Pilnick, Carl – G73 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 exd4 9. Nxd4 Nc5 10. h3 Re8
1955 Moscow Ch – Round 15 – Khasin, Abram – 0-1 – Shcherbakov, Vitaly – G89 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
1955 Moskou ch-URS – Round ? – Korchnoi, Viktor – 1-0 – Sherbakov, Vitaly – G159 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 Re8 9. h3 exd4 10. Nxd4 Nc5
1955 URS Ch sf – Round ? – Korchnoi, Viktor – 1-0 – Soloviev, Vladimir A – G14 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 exd4 9. Nxd4 Nc5 10. h3 Re8
1956 Dresden – Round 4 – Averbakh, Yuri L – 1-0 – Dittmann, Sieghart – G24 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 exd4 9. Nxd4 Re8 10. h3 Nc5
1956 Moscow olm prel – Round 7 – Sanchez Alpizar, Luis Alberto – 1-0 – Dittmann, Sieghart – G223 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
1956 New York – Round ? – Turner, Abe J – 1-0 – Fischer, Robert J – G11 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
1956 Oklahoma City Open – Round 1 – Owens, Brian E – 1/2-1/2 – Fischer, Robert J – G1 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 exd4 9. Nxd4 Nc5 10. Re1 a5
1956 Uppsala – Round 1 – Korchnoi, Viktor – 1-0 – Selshtedt – G1 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
1957 Mar del Plata – Round 13 – Eliskases, Erich – 0-1 – Lombardy, William J – G116 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
1957 San Nicolas – Round 4 – Eliskases, Erich – 1-0 – Toffano, Haroldo – G5 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
1957 USA Ch Open 58th – Round 8 – Byrne, Robert E – 1-0 – Theodorovich Ivan – G54 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
1958 JUG-13ch – Round 14 – Sokolov, Vladimir – 0-1 – Janosevic, Dragoljub – G15 1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. g3 d6 5. d4 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1958 Munich olm fin-A – Round 8 – Filip, Miroslav – 1/2-1/2 – Ivkov, Borislav – G80 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. Nc3 e5 7. d4 Nbd7 8. e4 exd4 9. Nxd4 Re8 10. Re1 a5
1960 Leipzig olm prel – Round 2 – Euwe, Max – 0-1 – Najdorf, Miguel – G3 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. h3 Nc5
1960 Olympiad final C – Round 4 – Boutteville, Cesar – 1-0 – Namzhil, Naidan – G7 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d6 5. Bg2 O-O 6. e4 Nbd7 7. Nge2 e5 8. O-O exd4 9. Nxd4 Nc5 10. h3 Re8
1960 Olympiad prel II – Round 7 – Donner, Jan-Hein – 1-0 – Lokvenc, Josef – G11 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. h3 Nc5
1961 Zagreb – Round 10 – Suvalic – 0-1 – Bertok, Mario Jr. – G88 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 exd4 9. Nxd4 Re8 10. Re1 Nc5
1961 Zagreb – Round 7 – Marovic, Drazen – 1/2-1/2 – Bertok, Mario Jr. – G63 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 e5 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 exd4 9. Nxd4 Re8 10. Re1 Nc5
1961 Zevenaar – Round 14 – Stahlberg, Gideon – 1-0 – Abalde Perez, Fernando Jose – G90 1. c4 g6 2. g3 Bg7 3. Bg2 Nf6 4. d4 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. h3 Re8 9. e4 exd4 10. Nxd4 Nc5
1962 CSR Ch – Round 6 – Marsalek, Josef – 0-1 – Hort, Vlastimil – G47 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 exd4 9. Nxd4 Re8 10. Re1 Nc5
1962 It Bamberg GER – Round 11 – Bialas, Wolfram – 1/2-1/2 – Pfleger, Helmut, Dr. – G52 1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. g3 e5 5. Nc3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1962 Moscow – Round 1 – Averbakh, Yuri L – 1/2-1/2 – Hort, Vlastimil – G22 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. h3 Nc5
1962 Olympiad Varna BUL – Round ? – Rantanen, Yrjo A. – 1/2-1/2 – Hort, Vlastimil – G59 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d6 5. Bg2 O-O 6. e4 Nbd7 7. Nf3 e5 8. O-O exd4 9. Nxd4 Re8 10. h3 Nc5
1962 Reggio Emilia ITA – Round 3 – Tatai, Stefano – 1/2-1/2 – Zichichi, Alvise – G13 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 exd4 9. Nxd4 Re8 10. h3 Nc5
1962 Varna olm – Round 2 – Doda, Zbigniew – 0-1 – Hort, Vlastimil – G102 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 a5
1963 Alekhine Memorial – Round 1 – Gligorić, Svetozar – 1/2-1/2 – Liberzon, Vladimir M – 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 exd4 9. Nxd4 Nc5 10. h3 Re8
1963 CSR Ch – Round 12 – Filip, Miroslav – 1-0 – Smejkal, Jan – G105 1. c4 g6 2. g3 Bg7 3. d4 Nf6 4. Bg2 d6 5. Nf3 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 a5
1963 CSR Ch – Round 3 – Hort, Vlastimil – 1/2-1/2 – Smejkal, Jan – G28 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. Nc3 e5 7. d4 Nbd7 8. e4 exd4 9. Nxd4 Re8 10. Re1 a5
1963 FRG Ch – Round 1 – Bialas, Wolfram – 0-1 – Unzicker, Wolfgang – G3 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 Nc5
1964 Leipzig Open 6364 2nd – Round 8 – Moehring, Guenther – 1/2-1/2 – Walkewitz, Hubert – G9 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nbd7 8. Re1 exd4 9. Nxd4 Nc5 10. Bf1 Ng4
1965 Copenhagen – Round 8 – Sloth, Jorn – 0-1 – Honfi, K. – G69 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 exd4 9. Nxd4 Re8 10. Re1 Nc5
1965 HUN-ch21 – Round 1 – Bokor, Istvan – 1-0 – Portisch, Ferenc – G18 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 e5 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
1965 Leipzig Inter-1 – Round 8 – Barcza, Gedeon – 0-1 – Liberzon, Vladimir M – G31 1. c4 g6 2. Nc3 Bg7 3. Nf3 Nf6 4. g3 O-O 5. Bg2 d6 6. O-O e5 7. d4 Nbd7 8. h3 Re8 9. e4 exd4 10. Nxd4 Nc5
1966 Asztalos Memorial – Round 2 – Bilek, Istvan – 1/2-1/2 – Lilienthal, Andor – G2 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. e4 Re8 9. Re1 exd4 10. Nxd4 Nc5
1966 Asztalos Memorial 9th – Round 11 – Flesch, Janos – 1-0 – Paoli, Enrico – G61 1. g3 g6 2. Bg2 Bg7 3. e4 e5 4. Nf3 d6 5. d4 Nd7 6. O-O Ngf6 7. Re1 O-O 8. c4 Re8 9. Nc3 a5 10. h3 exd4
1967 URS Team Ch – Round 1 – Geller, Efim P – 1-0 – Seredenko, Vladimir – G4 1. c4 Nf6 2. Nc3 e5 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. d4 Nbd7 7. O-O O-O 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1968 Cardenas – Round 1 – Perez Perez, Francisco Jose – 0-1 – Yepez, Olavo – G11 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
1968 Southend – Round 1 – Keene, Raymond D – 1/2-1/2 – Lee, Peter N – G7 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 Re8 9. Re1 a5 10. h3 exd4
1969 Luhacovice – Round 13 – Kupka, Slavoj – 1-0 – Mista, Ladislav – G97 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. h3 Re8 9. e4 exd4 10. Nxd4 Nc5
1973 Leningrad Interzonal – Round 3 – Cuellar Alpire, Mariana – 0-1 – Gligoric, Sofija – G70 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. h3 Nc5
1974 Manila – Round 2 – Petrosian, Tigran V. – 1-0 – Quinteros, Miguel Angel – G33 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. Nf3 Nd7 5. g3 e5 6. Bg2 Ngf6 7. O-O O-O 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
1974 Manila – Round 2 – Petrosian, Tigran V. – 1-0 – Quinteros, Miguel Angel – G34 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. Nf3 Nd7 5. g3 e5 6. Bg2 Ngf6 7. O-O O-O 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
IBM 1980 – Round 1 – Ribli, Zoltan – 1-0 – Van der Wiel, John T.H. – G19 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nc3 O-O 6. O-O e5 7. d4 Nbd7 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8
Madrid 1973 – Round 5 – Portisch, Lajos – 1-0 – Planinec, Albin – G11 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nc3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5
World Blitz 2015 – Round 14.70 – Vidit, Santosh Gujrathi – 0-1 – Kunin, Vitaly – G905 1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. c4 g6 6. O-O Bg7 7. Nc3 O-O 8. e4 Re8 9. h3 exd4 10. Nxd4 Nc5
World Blitz 2021 – Round 13.61 – Theodorou, Nikolas – 0-1 – Demchenko, Aleksandr – G799 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 exd4 9. Nxd4 Nc5 10. h3 Re8

E68h — Fianchetto, Classical (1942)

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 exd4 9.Nxd4 Re8 10.h3 Nc5 11.Re1 a5

Les coups candidats

12.Qc2 — 25.7% (516 parties)

Ambassadeurs : Averbakh, Yuri L (5x), Rapaka Samuel Paul (5x), Lilienthal, Andor (4x), Geller, Efim P. (4x), Kristiansen, Jens (4x), Smejkal, Jan (4x), Hort, Vlastimil (3x), Gligoric, Sofija (3x)

12.b3 — 20.8% (417 parties)

Ambassadeurs : Tregubov, Pavel V. (8x), Vaulin, Alexander P. (4x), Ilincic, Zlatko (4x), Poldauf, Dirk (4x), Abramovic, Bosko (3x), Khusnutdinova, Luiza (3x), Jaworski, Miroslaw (3x), Luch, Michal (3x)

12.Ndb5 — 19.7% (395 parties)

Ambassadeurs : Kovalevskaya, Ekaterina (4x), Kaufman, Lawrence (2x), Kaplan, Julio (2x), Moehring, Guenther (2x), Sorokin, Maksim (2x), Kraehenbuehl, Gary (2x), Cuevas Rodriguez, Maria Luisa (2x), Dautov, Rustem (2x)

12.Rb1 — 16.4% (328 parties)

Ambassadeurs : Planinec, Albin (6x), Korchnoi, Viktor (4x), Arsovic, Goran (4x), Browne, Walter Shawn (3x), Csom, Istvan (3x), Ribli, Zoltan (3x), Kochyev, Alexander (3x), Wojtkiewicz, Aleksander (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12.Qc2	12.b3	12.Ndb5	12.Rb1
<1800	59	17%	19%	24%	12%
1800-2200	615	20%	24%	19%	16%
2200-2600	1079	25%	20%	22%	18%
2600+	12	25%	17%	42%	8%

Évolution par décennie (% des parties)

Décennie	N parties	12.Qc2	12.b3	12.Ndb5	12.Rb1
1950s	90	57%	8%	1%	17%
1960s	34	59%	9%	6%	15%
1970s	90	48%	6%	10%	28%
1980s	131	37%	18%	8%	20%
1990s	488	26%	27%	12%	20%
2000s	448	17%	26%	21%	17%
2010s	530	21%	19%	28%	12%
2020s	194	22%	16%	35%	12%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12.Qc2	21%	22%	▲ +1.6%
12.b3	19%	16%	▼ -2.2%
12.Ndb5	28%	35%	▲ +6.2%
12.Rb1	12%	12%	-0.0%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 2 parties
Tal, Mikhail — 1 partie
Botvinnik, Mikhail — 1 partie

Parties historiques

12.Qc2 — 25.7% (516 parties)

1950 — Neikirkh, Oleg vs Filipov, Filip — 1-0 — Sofia BUL
1950 — Borisenko, Georgy K vs Geller, Efim P. — 1-0 — Moskou ch-URS
1950 — Van den Berg, Carel B vs Gligoric, Svetozar — 1/2-1/2 — Amsterdam NED
1951 — Nedeljkovic, Srecko M vs Pirc, Vasja — 1-0 — Ljubljana
1951 — Unzicker, Ferdinand, Dr. vs Gligoric, Sofija — 1/2-1/2 — Bad Pyrmont GER

12.b3 — 20.8% (417 parties)

1950 — Schlieder, Rolf vs Ullrich, Bruno — 1/2-1/2 — Soemmerda GER
1950 — Bergqvist, Allan vs Pedersen, Eigil — 0-1 — Dubrovnik olm
1951 — Pomar Salamanca, Arturo vs Gligoric, Svetozar — 0-1 — Bad Pyrmont GER
1951 — Ruppe, Otto vs Pietzsch, Wolfgang — 0-1 — Schwerin GER
1953 — Gradus vs Tal, Mikhail — 0-1 — USSR

12.Ndb5 — 19.7% (395 parties)

1952 — Madeira de Ley, Manuel vs Cordioli, Lourenco Joao — 1-0 — Sao Paulo BRA
1966 — Flesch, Janos vs Paoli, Enrico — 1-0 — Szombathely
1968 — Keene, Raymond D vs Lee, Peter N — 1/2-1/2 — Southend
1974 — Kaufman, Lawrence vs Kaplan, Julio — 1/2-1/2 — Los Angeles, CA USA
1974 — Kaufman, Lawrence vs Kaplan, Julio — 1/2-1/2 — Los Angeles Los Angeles, CA U

12.Rb1 — 16.4% (328 parties)

1953 — Szapiel, Henryk vs Doda, Zbigniew — 1-0 — Krakow POL
1954 — Furman, Slavomir vs Tolush, Alexander — 1-0 — Leningrad RUS
1954 — Bauza, Lorenzo vs Alvarez, Jose-Luis — 1-0 — Montevideo URU
1954 — Abramovich Furman, Semyon vs Artsukevich, K. — 1/2-1/2 — Leningrad RUS
1954 — O'Kelly, Albéric de Galway vs Ciocaltea, Victor — 1/2-1/2 — Bucharest ROU

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