Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● b7→a6, e7→d6, f7→g6, h7→g6
Passés
Majorité ● aile dame 3v2
Cases
♔ Blancs ♚ Noirs
Cases fortes ● d5 (2v1) ● g4 (2v1), ● c5 (2v0)
Cases faibles
Centre ● d5 (2v1), ● e4 (2v1)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Semi-ouvertes ● d ● c
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 2)
Bd3 ● Bd3 Actif (mob. 5)
Bc8 ● Bc8 Non développé (mob. 5)
Bf8 ● Bf8 Non développé (mob. 2)
Paire de fous ● Oui ● Oui
Non développées 3 (● c1, ● 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 mobile
Ruptures ● e4-e5, ● f4-f5 ● …d6-d5, ● …e7-e5

B93g — Sicilian: Najdorf, 6.f4 Qc7 7.Bd3 g6

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 g6 *   ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bB
bK
bB
bR
bP
bQ
bP
bP
bP
bP
bP
bN
bP
Case forte (2v1)
wN
wPPion central
wP
wN
wBFou actif — mobilité 5
wP
wP
wP
wP
wP
wR
wB
wQ
wK
wR
abcdefgh
Plans. O-O (Mettre le roi en sécurité, connecter les tours — 67 % des parties) ; Nf3 (26 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wK
wQ
wB
wR
wP
wP
wP
wP
wP
wB
wN
Case forte (2v1)
wP
wP
wN
Case forte (2v0)
bP
bN
bP
bP
bP
bP
bP
bQ
bP
bR
bB
bK
bBFou actif — mobilité 5
bN
bR
hgfedcba
Plans. ...Bg7 (Fianchetto, fou sur la grande diagonale — 79 % des parties) ; ...Nbd7 (Développer b8 — 16 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
1952 Buenos Aires – Round 1 – Reinhardt, Enrique – 1-0 – Leiva, Juan Carlos – G17
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Be3 Bg7 9. h3 b5 10. Qf3 Bb7
1952 Moskou ch-URS – Round 1 – Boleslavsky, Isaac – 1-0 – Simagin, Vladimir – G97
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Bg4 9. h3 Bxf3 10. Qxf3 Nbd7
1954 US Open 55th – Round 10 – Rossolimo, Nicolas – 1/2-1/2 – Evans, Larry M – G12
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Bg7 9. O-O O-O 10. Qe1 Nbd7
1956 BCF Ch – Round 7 – Martin, Geoffrey J – 0-1 – Parr, Frank – G11
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 Nc6 10. Nf3 O-O
1961 Oberhausen etc – Round 4 – Pogats, Jozsef Jr. – 0-1 – Polugaevsky, Lev – G112
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Bg7 9. O-O b5 10. Qe1 Bb7
1962 Mar del Plata – Round 10 – Penrose, Justin – 0-1 – Polugaevsky, Lev – G89
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. Qe1 b5
1962 Torremolinos zt – Round 1 – Durão, Joaquim Manuel – 0-1 – Llado Lumbera, Jaime – G5
1. d4 c5 2. e4 cxd4 3. Nf3 d6 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nb3 Nc6 10. Qe1 O-O
1962 URS-JUG2 – Round 1 – Zakharov, Alexander V – 0-1 – Ankerst, Mihael – G5
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 b5 10. e5 dxe5
1962 Varna ol (Men) qual-C – Round 9 – Noradounghian, Georges – 0-1 – Schmidt, Waldemar – G27
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Nbd7 9. O-O Bg7 10. Kh1 b5
1962 Vrnjacka Banja – Round 6 – Bradvarevic, Aleksandar – 0-1 – Bertok, Mario Jr. – G62
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 O-O 10. Qe1 Nbd7
1963 Amsterdam – Round 4 – Rellstab, Ludwig – 0-1 – Lehmann, Heinz – G20
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Bg7 9. O-O O-O 10. Kh1 Nbd7
1963 Piatigorsky Cup – Round 1 – Olafsson, Fridrik – 1/2-1/2 – Gligorić, Svetozar – G2
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Nbd7 9. O-O Bg7 10. Qe1 e5
1964 Buenos Aires – Round 16 – Foguelman, Alberto – 1/2-1/2 – Garcia Rodriguez, Raimundo – G144
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Bg7 9. O-O O-O 10. Kh1 e5
1964 Hoogovens Beverwijk NED – Round 1 – Zuidema, Coen – 1/2-1/2 – Bobotsov, Milko G – G28
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. Qe1 e5
1964 IBM – Round 6 – Cuijpers, Frans Andre – 1/2-1/2 – Lehmann, Heinz – G29
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 O-O 10. Qe1 Nbd7
1964 Liberation – Round 7 – Zuidema, Coen – 0-1 – ? – G19
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. Qe1 O-O
1964 Malaga – Round 2 – Puig, Pedro – 0-1 – Lehmann, Heinz – G9
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Be3 Bg7 9. h3 b5 10. a3 Bb7
1964 Tel Aviv olm fin-A – Round 3 – Domnitz, Zadok – 1/2-1/2 – Garcia Rodriguez, Raimundo – G53
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 O-O 10. Nf3 Nbd7
1964 Tel Aviv olm prel – Round 7 – Brinck-Claussen, Bjorn – 0-1 – Bobotsov, Milko G – G68
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. Qe1 O-O
1965 Belgrade – Round 5 – Dely, Peter – 1/2-1/2 – Kavalek, Lubomir – G28
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 Nbd7 10. Nf3 O-O
1965 Belgrade – Round 9 – Ostojic, Predrag – 1-0 – Kavalek, Lubomir – G53
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. Qe1 O-O
1965 Hastings ch-BCF – Round 4 – Penrose, Justin – 1/2-1/2 – Lee, Paak Hei – G51
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. Qe1 b5
1965 Leipzig Inter-1 – Round 2 – Kavalek, Lubomir – 1/2-1/2 – Bobotsov, Milko G – G7
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. Qe1 O-O
1965 Northern Open – Round 11 – Brinck-Claussen, Bjorn – 1-0 – Scholes, James E – G16
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nc6 10. Qe1 O-O
1966 Asztalos Memorial 9th – Round 11 – Pelitov, Dimitar – 0-1 – Kavalek, Lubomir – G59
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 O-O 10. Qe1 e5
1967 Asztalos Memorial 10th – Round 12 – Paoli, Enrico – 1/2-1/2 – Flesch, Janos – G62
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 Nbd7 10. Qe1 b5
1967 Atlanta – Round ? – Popovych, Orest – 0-1 – Saidy, Anthony – G11
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. a4 b6
1967 Salgotarjan – Round ? – Barczay, Laszlo – 1/2-1/2 – Johansson Rexner, Melker – G10
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 O-O 10. Qe1 Nbd7
1967 Venice Venice ITA – Round 10 – Kupper, Josef – 1-0 – Magrin, Antonio – G32
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Bg7 9. O-O Bg4 10. Qe1 Bxf3
1968 Bristol ch-BCF – Round 9 – Penrose, Justin – 1-0 – Lee, Paak Hei – G95
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 b5 10. a4 b4
1968 WchT U26 15. qual-D – Round 3.2 – Moe, Mogens – 1/2-1/2 – Kristjansson, Bragi – G6
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Nbd7 9. a4 b6 10. O-O Bb7
1969 Palma de Mallorca – Round 15 – Penrose, Jonathan – 0-1 – Szabo, Laszlo – G133
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 Nbd7 10. Qe1 b5
1969 Venice – Round 1 – Paoli, Enrico – 0-1 – Saidy, Anthony – G9
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Kh1 Nbd7 10. Qe1 b5
1971 Hoogovens – Round 13 – Cuijpers, Frans Andre – 1/2-1/2 – Gligoric, Svetozar – G120
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. a4 Bg7 9. Nf3 Nc6 10. O-O O-O
1973 Leningrad Interzonal – Round 5 – Tukmakov, Vladimir B – 0-1 – Tal, Mihail – G78
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Nbd7 9. O-O e5 10. Qe1 b5
Biel Interzonal 1976 – Round 11 – Tal, Mikhail – 1/2-1/2 – Rogoff, Kenneth – G51
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Bg7 9. O-O Nbd7 10. Kh1 b5
FIDE World Cup 2019 – Round 2.4 – Yu, Yangyi – 1/2-1/2 – Adhiban, B. – G281
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. Nf3 Bg7 9. O-O Nbd7 10. Qe1 O-O
Luzern olm 1982 – Round 13 – Schneider, Larissa Roessler – 0-1 – Tal, Mikhail – G62
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. Kh1 e5
Tilburg Fontys 1996 – Round 10 – Polgar, Judit – 1/2-1/2 – Van Wely, Loek – G46
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O Bg7 9. Nf3 Nbd7 10. a4 b6

B93g — Najdorf (1952)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 g6
Les coups candidats
8.O-O — 61.1% (341 parties)
Ambassadeurs : Polugaevsky, Lev (5x), Popovych, Orest (5x), ? (5x), Formanek, Edward (5x), Honfi, Karoly (5x), Penrose, Jonathan (4x), Bobotsov, Milko G (4x), Bielczyk, Jacek (4x)
8.Nf3 — 30.1% (168 parties)
Ambassadeurs : ? (4x), Cvitan, Ognjen (4x), Tal, Mikhail (3x), Schmidt, Wlodzimierz (2x), Moe, Mogens (2x), Kristjansson, Bragi (2x), Sax, Gyula (2x), Shamkovich, Leonid (2x)
8.a4 — 2.7% (15 parties)
Ambassadeurs : Kerek, Krisztian (2x), Vujcic, Milena (2x), Petrovic, Tamara (2x), Filipowicz, Andrzej (1x), Bednarski, Jacek (1x), Van der Wiel, John T.H. (1x), Kasparov, Garry (1x), Glatt, Gabor (1x)
8.Qe2 — 2.5% (14 parties)
Ambassadeurs : Anelli, Antonio (1x), Martin Herrera, Jose Antonio (1x), Primavera, Roberto (1x), Bukic, Enver (1x), Bak, Karol (1x), Boudy Bueno, Julio Leonardo (1x), Hecht, Hans-Joachim (1x), Polugaevsky, Lev (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.O-O 8.Nf3 8.a4 8.Qe2
<1800 11 64% 27% 9%
1800-2200 113 61% 28% 3% 2%
2200-2600 283 54% 36% 4% 4%
2600+ 7 57% 43%
Évolution par décennie (% des parties)
Décennie N parties 8.O-O 8.Nf3 8.a4 8.Qe2
1950s 14 71% 21%
1960s 46 63% 30% 2%
1970s 111 60% 32% 3% 4%
1980s 98 80% 17% 2%
1990s 115 57% 32% 3% 3%
2000s 103 53% 38% 3% 2%
2010s 64 52% 33% 3% 6%
2020s 7 57% 29%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.O-O 52% 57% ▲ +5.6%
8.Nf3 33% 29% ▼ -4.2%
8.a4 3% 0% ▼ -3.1%
8.Qe2 6% 0% ▼ -6.2%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 6 parties
Kasparov, Garry — 2 parties
Ding, Liren — 1 partie
Parties historiques
8.O-O — 61.1% (341 parties)
1952 — Burgalat, Francisco J vs Leiva, JC. — 0-1 — Buenos Aires ARG
1952 — Miguel, Nahuel vs Rapaka Samuel Paul — 1-0 — Mex/NY/Salvador
1952 — Corte, Cesar J vs Leiva, JC. — 1-0 — Buenos Aires ARG
1952 — Corte, Cesar J vs Burgalat, Francisco J — 0-1 — Buenos Aires ARG
1952 — Miguel, Nahuel vs Rapaka Samuel Paul — 1-0 — New York, NY USA
8.Nf3 — 30.1% (168 parties)
1952 — Boleslavsky, Isaac vs Simagin, Vladimir — 1-0 — Moskou ch-URS
1954 — Rossolimo, Nicolas vs Evans, Larry — 1/2-1/2 — New Orleans, LA USA
1956 — Krogius, Nikolai V vs Shamkovich, Leonid — 1/2-1/2 — Kislovodsk
1961 — Pogats, Jozsef Jr. vs Polugaevsky, Lev — 0-1 — Oberhausen etc
1962 — ? vs Parma, Bruno — 1/2-1/2 — Vrnjacka Banja SRB
8.a4 — 2.7% (15 parties)
1966 — Filipowicz, Andrzej vs Bednarski, Jacek — 1/2-1/2 — Polanica Zdroj POL
1971 — Ciocaltea, Victor vs Mecking, Henrique — 1/2-1/2 — Hastings ENG
1971 — Cuijpers, Frans Andre vs Gligoric, Svetozar — 1/2-1/2 — Wijk aan Zee NED
1976 — Van der Wiel, John T.H. vs Kasparov, Garry — 1-0 — Wattignies wch-jr
1980 — Da Cunha, Marcos Paolozzi S. vs Vera Gonzalez-Quevedo, Reynaldo — 1-0 — Mexico City MEX
8.Qe2 — 2.5% (14 parties)
1973 — Anelli, Antonio vs Martin Herrera, Jose Antonio — 1-0 — Buenos Aires ARG
1974 — Hecht, Hans-Joachim vs Polugaevsky, Lev — 0-1 — Solingen GER
1976 — Primavera, Roberto vs Bukic, Enver — 1/2-1/2 — Rome ITA
1976 — Bak, Karol vs Boudy Bueno, Julio Leonardo — 1-0 — Lublin POL
1991 — Rios Parra, Alejandro vs Minaya, Juan — 1-0 — Bogota COL

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