Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● d6
Chaînes	● f2→g3, h2→g3	● d6→e5, b7→a6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (3v1)	● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v1)	● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 1)
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	● f2-f4	● …d6-d5

B91i — Najdorf

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bg5 (Clouer Nf6) ; f4 (Rupture) ; f3 (Poussée).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nbd7 (Développer Nb8) ; ...Be7 (Développer Bf8) ; ...d5 (Occuper le centre).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1949 Bucharest – Round ? – Jenei, Ferenc – 1/2-1/2 – Sajtar, Jaroslav – G13 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. O-O b5 10. h3 Be7
1950 Venice – Round 4 – Wade, Robert G – 1/2-1/2 – Szabados, Eugenio – G45 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 h6 8. Bg2 Be6 9. O-O Be7 10. b3 O-O
1950 Wch women – Round ? – Belova, Valentina M – 1-0 – Chaude de Silans, Chantal – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Bg4 8. Bg2 Qd7 9. h3 Be6 10. Nd5 Bxd5
1951 It Dortmund GER – Round 1 – Bogoljubow, Efim – 0-1 – Puc, Stojan – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. O-O b5 10. h3 Nb6
1951 Ljubljana ch YUG – Round 14 – Milic, Borislav – 1/2-1/2 – Vidmar, Milan Jr – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Be7 9. O-O b5 10. h3 O-O
1951 New York ch-USA – Round 4 – Seidman, Herbert – 0-1 – Evans Lianda – G16 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. O-O Rc8 10. b3 b5
1951 Zonal – Round 6 – Aitken, James – 0-1 – Kramer, Haije – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. Nd5 Nxd5 10. exd5 Bf5
1951 Zonal – Round 9 – Matanovic, Aleksandar – 1-0 – Kramer, Haije – G21 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. O-O b5 10. h3 Nb6
1952 Belgrade – Round 1 – Lob, Chris – 0-1 – Janosevic, Dragoljub – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. a4 Rc8 10. O-O Be7
1952 Helsinki olm – Round 1 – Beni, Alfred – 1-0 – Morcken, Otto B – G178 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. O-O Qc7 10. h3 Be7
1952 Mar del Plata – Round 2 – Michel, Pascal – 1-0 – Puiggros, Guillermo – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Be7 9. h3 Nbd7 10. O-O O-O
1953 Bucharest – Round 16 – Boleslavsky, Isaac – 1-0 – Ciocaltea, Victor – G157 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Be7 9. O-O Nbd7 10. h3 b5
1953 Candidats Tournament – Round 10 – Gligorić, Svetozar – 0-1 – Kotov, Alexander. – G63 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 b5 9. O-O Nbd7 10. a4 b4
1953 Candidats Tournament – Round 18 – Gligorić, Svetozar – 1/2-1/2 – Najdorf, Miguel – G116 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 b5 9. a4 b4 10. Nd5 Nxd5
1954 Mar del Plata – Round 16 – Pilnik, Herman – 1/2-1/2 – Wexler, Bernardo – G126 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Be7 9. O-O b5 10. h3 b4
1955 Moskou ch sf – Round ? – Panov, Vasily – 1-0 – Lebedev Soler, Andrei – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Qc7 8. Bg2 b5 9. a3 Nbd7 10. O-O Bb7
1956 Budapest Szikra – Round ? – Pogats, Jozsef Jr. – 1/2-1/2 – Zsedenyi, B. – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 b5 9. O-O Nbd7 10. a4 b4
1959 UKR Ch – Round 10 – Rotstein, Jefim – 0-1 – Volchok, Alexandr – G75 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. O-O Rc8 10. h3 Qc7
1960 BRA-ch27 – Round 1 – Gadia, Olicio – 0-1 – Alves, Francisco H B Severino – G2 1. Nf3 c5 2. e4 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 b5 9. a3 Nbd7 10. O-O Be7
1962 Stockholm Interzonal – Round 9 – Teschner, Rudolf – 0-1 – Stein, Leonid – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Be7 9. O-O O-O 10. h3 Nbd7
1967 Corr – Round ? – Konstantinopolsky, Alexander – 1-0 – Preinfalk, Anton – G6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. O-O Qc7 10. h3 b5
1967 Vrnjacka Banja zt – Round 3 – Matanovic, Aleksandar – 0-1 – Barczay, Laszlo – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. a4 Be7 10. O-O Rc8
1968 POL Ch 25th – Round 11 – Kostro, Jerzy – 1/2-1/2 – Matkowski, Wiktor – G66 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 h6 8. Bg2 Nbd7 9. O-O Be7 10. h3 Qc7
8. London Classic 2016 – Round 8.3 – Kramnik, Vladimir – 1/2-1/2 – Giri, Anish – G38 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 h5 9. Bg5 Nbd7 10. Qd2 Be7
World Blitz 2015 – Round 4.88 – Fedorchuk, Sergey A. – 1-0 – Carstensen, Jacob – G275 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. g3 e5 7. Nde2 Be6 8. Bg2 Nbd7 9. h3 Be7 10. g4 h6

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