B86d — Sicilian: Sozin-Najdorf, 7.Bb3

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3 * ● Trait aux Noirs

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), un fou actif en b3, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le fou c1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Bg5 (Clouer Nf6) ; 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), la paire de fous et la colonne semi-ouverte c.

Côté adverse. Le fou enfermé en c1, un mauvais fou en b3 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bf5)) ; ...Nbd7 (Développer Nb8) ; ...Be7 (Développer Bf8) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→a6, f7→e6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d4 (1v0), ● d5 (3v2)	● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bb3	● Bb3 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 1)
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	semi-ouvert
Ruptures	● e4-e5, ● f2-f3	● …d6-d5, ● …e6-e5

Partie
1953 Bucharest – Round 17 – Ciocaltea, Victor – 1-0 – O'Kelly, Albéric de Galway – G164 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Qc7 8. Be3 Nc6 9. O-O Na5 10. Qe2 b5
1954 URS Ch, semi final – Round 9 – Kasparian, Genrikh – 0-1 – Kotov Lundqvist, Alex – G95 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Be7 9. Be3 Na5 10. Qf3 O-O
1955 Wch U20 prel-B – Round 2 – Tringov, Georgi P – 0-1 – Schweber, Samuel – G6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Bd7 8. f4 Nc6 9. Be3 Be7 10. O-O b5
1957 Clare Benedict Cup 04th – Round 2 – Kinzel, Anton – 1-0 – Nievergelt, Erwin – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Qc7 9. Kh1 b5 10. Nxc6 Qxc6
1957 Sombor – Round 23 – Bogdanovic, Rajko – 1-0 – Udovcic, Mijo – G213 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 Nc6 8. O-O Be7 9. Be3 O-O 10. f4 Na5
1958 Haifa/Tel Aviv – Round 12 – Wade, Robert G – 1/2-1/2 – Persitz, Raaphi – G70 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. f4 d5 9. exd5 exd5 10. Be3 Bb4
1958 Yugoslavia – Round 1 – Suetin, Alexey S – 1/2-1/2 – Bertok, Mario Jr. – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. f4 Be7 9. O-O Na5 10. Be3 Nxb3
1959 Dresden – Round 2 – Fichtl, Jiri – 1/2-1/2 – Szabo, Janos – G23 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Be7 9. Kh1 Na5 10. f4 Qc7
1959 FRG Ch 05th – Round 5 – Mohrlok, Dieter – 1-0 – Niephaus, Walter – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Be7 9. Kh1 O-O 10. f4 Qc7
1959 Marianske Lazne – Round 4 – Radovici, Corvin – 1/2-1/2 – Kozma, Julius – G29 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Na5 9. O-O b5 10. a4 b4
1959 UKR Ch – Round 12 – Kostiuchenko, Alexander – 0-1 – Nikolaevsky, Yuri V – G88 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Qc7 9. Be3 Na5 10. Qe2 b5
1960 Buenos Aires – Round 5 – Wexler, Bernardo – 1/2-1/2 – Foguelman, Alberto – G64 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 Nc5 9. O-O h6 10. Bh4 Be7
1961 Baku ch-URS – Round 3 – Averbakh, Yuri L – 1/2-1/2 – Shamkovich, Leonid – G37 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Na5 9. f4 b5 10. f5 Nxb3
1961 Moscow Ch – Round 16 – Vasiukov, Evgeni – 1-0 – Titenko, Vladimir F – G31 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. f4 Qc7 9. Be3 Be7 10. Qf3 Bd7
1961 Moscow RUS – Round 1 – Vasiukov, Evgeni – 1-0 – Titenko, Vladimir F – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. f4 Qc7 9. Be3 Be7 10. Qf3 Bd7
1962 Moscow – Round 1 – Wade, Robert G – 0-1 – Ignatiev, Felix N – G30 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Be7 9. Nde2 O-O 10. Bf4 b5
1962 Sofia – Round 6 – Ciocaltea, Victor – 1-0 – Padevsky, Nikola – G38 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Qc7 9. O-O Na5 10. f4 b5
1963 BRA Ch – Round 12 – De Souza Mendes, Joao – 0-1 – Vasconcellos Teotonio – G33 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Qc7 8. O-O Be7 9. Bg5 O-O 10. f4 h6
1963 Club Argentino – Round 11 – Scanavino, Eduardo – 1/2-1/2 – Panno, Oscar – G49 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. f5 Be7 10. Qf3 O-O
1964 Zinnowitz GER – Round 10 – Bednarski, Jacek B – 1-0 – Bogdanovic, Rajko – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. e5 dxe5 10. fxe5 Nfd7
1965 Chigorin Memorial – Round 15 – Jansa, Vlastimil – 0-1 – Ciric, Dragoljub M – G75 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 Nbd7 8. f4 Nc5 9. Qf3 Qd7 10. f5 e5
1965 Corr – Round 1 – Sloth, Jorn – 1/2-1/2 – Schabo – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. f4 d5 9. e5 Nd7 10. Be3 Be7
1965 DDR Ch 15th – Round 9 – Nerenz, Werner – 1-0 – Schoeneberg, Manfred – G43 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Qc7 8. O-O Nc6 9. Be3 Na5 10. f4 Nxb3
1965 Hamburg etc – Round 1 – Dely, Peter – 1/2-1/2 – Ciric, Dimitrije – G8 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 Nbd7 8. Bg5 Nc5 9. Qe2 Be7 10. Rd1 Nfxe4
1965 Novi Sad – Round 12 – Ciric, Dragoljub M – 1/2-1/2 – Bogdanovic, Rajko – G99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. Qf3 Qd7 10. O-O b5
1965 Titograd – Round 18 – Ciric, Dragoljub M – 1/2-1/2 – Bogdanovic, Rajko – G127 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. Qe2 Be7 10. O-O O-O
1966 La Habana olm fin-C – Round 12 – Alvarez del Monte, Jose – 1-0 – Belkadi, Ridha – G81 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Qc7 8. f4 Nc6 9. Be3 Bd7 10. O-O Be7
1966 Malmo – Round 3 – Nilsson, Zandor – 1/2-1/2 – Westman, Jan Erik – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. O-O Nc5 9. Bg5 Be7 10. Bxf6 Bxf6
1967 Budapest Bajnogsag 8th – Round 2 – Bodo, Mihaly – 0-1 – Ozsvath, Andras – G12 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Qc7 8. Be3 Nc6 9. Qe2 Bd7 10. O-O-O Rc8
1967 DEN Ch – Round 5 – Pedersen, Karl – 1-0 – Blom, Kaj – G19 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Bd7 8. O-O Nc6 9. Kh1 Be7 10. f4 Qa5
1967 Hoogovens – Round 6 – Darga, Klaus – 1/2-1/2 – Ciric, Dimitrije – G41 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 Nbd7 8. f4 Nc5 9. f5 Nxb3 10. axb3 Be7
1967 Kraljevo – Round 1 – Ciric, Dragoljub M – 1-0 – Bogdanovic, Rajko – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. f5 e5 10. Nde2 h6
1967 Reggio Emilia 6768 10th – Round 9 – Albano, Marco – 1/2-1/2 – Canal, Esteban – G32 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 a6 7. Bb3 Nbd7 8. O-O Nc5 9. Qe2 b5 10. e5 dxe5
1967 Sarajevo it – Round 2 – Byrne, Ray – 1-0 – Bogdanovic, Radivoje – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. f5 e5 10. Nde2 Nxb3
1967 YUG Ch 22th – Round 7 – Ciric, Dragoljub M – 1-0 – Bogdanovic, Rajko – G34 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. f5 b5 10. Nde2 h6
1967 YUG-URS – Round 9 – Ciric, Dragoljub M – 1/2-1/2 – Bogdanovic, Rajko – G28 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. f5 Be7 10. Qf3 O-O
1968 Copenhagen ch-DEN – Round 1 – Hamann, Svend – 1-0 – Iversen, Ralph – G23 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 a6 7. Bb3 Nc6 8. Be3 Bd7 9. Qe2 Be7 10. O-O-O Qc7
1968 HUN-URS – Round ? – Barczay, Laszlo – 1-0 – Belov, Igor – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Qc7 9. Qe2 Na5 10. g4 b5
1968 Lugano olm - Round 1 - Allan, Denis - 1-0 - Naranja, Renato - G166 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Be7 9. O-O O-O 10. f4 Bd7
1969 Vrsac – Round 1 – Janosevic, Dragoljub – 1/2-1/2 – Masic, Almir – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Na5 9. f4 b5 10. f5 e5
1972 Skopje ol (Men) fin-A – Round 14 – Radulov, Ivan – 1-0 – Toran Albero, Roman – G230 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 Nc6 8. Be3 Na5 9. Qe2 b5 10. f3 Qc7
36. Olympiad 2004 – Round 10 – Pelletier, Yannick – 1/2-1/2 – Smirin, Ilia – G352 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Be7 9. Qe2 O-O 10. O-O-O Qc7
40. Olympiad Open 2012 – Round 1.35 – Pace, Charles – 0-1 – Amin, Bassem – G56 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Be7 9. Qe2 Qc7 10. O-O-O Na5
Amber Rapidplay 2002 – Round 7 – Morozevich, Alexander – 1-0 – Ljubojevic, Ljubomir – G28 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 Nc5 9. f4 Be7 10. Qf3 Bd7
Biel Interzonal 1993 – Round 3 – Adams, Michael – 0-1 – Wolff, Patrick G – G71 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Qc7 9. Be3 Na5 10. Ba4+ Bd7
ch-Wereld Teams 1989 – Round 1 – De Firmian, Nick – 0-1 – Ivanchuk, Vasyl – G47 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. O-O Nc5 9. Re1 Be7 10. Qf3 O-O
Frankfurt-West Masters 1999 – Round 5 – Polgar, Judit – 0-1 – Lutz, Christopher – G18 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. O-O Be7 9. Be3 O-O 10. f4 Nxd4
Hoogovens 1996 – Round 12 – Topalov, Veselin – 1-0 – Anand, Viswanathan – G65 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. e5 dxe5 10. fxe5 Nfd7
Hoogovens 1999 – Round 5 – Reinderman, Dimitri – 0-1 – Kasparov, Garry – G30 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Qc7 9. f4 Be7 10. Qf3 O-O
It 2003 – Round 5 – Naiditsch, Arkadij – 0-1 – Anand, Viswanathan – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 Qa5 9. Qd2 Be7 10. f3 Nc5
Olympiad 2002 – Round 12 – Morozevich, Alexander – 1-0 – Cvitan, Ognjen – G410 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 h6 9. Bh4 Qa5 10. Qe2 Qh5
PCA-World Championship 1993 – Round 10 – Short, Nigel D – 1/2-1/2 – Kasparov, Garry – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. Qf3 b5 10. f5 Bd7
PCA-World Championship 1993 – Round 12 – Short, Nigel D – 1/2-1/2 – Kasparov, Garry – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. f4 Be7 9. Be3 O-O 10. Qf3 Nxd4
PCA-World Championship 1993 – Round 14 – Short, Nigel D – 1/2-1/2 – Kasparov, Garry – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Be7 9. f4 O-O 10. O-O Nxd4
PCA-World Championship 1993 – Round 6 – Short, Nigel D – 1/2-1/2 – Kasparov, Garry – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. f5 Be7 10. Qf3 O-O
PCA-World Championship 1993 – Round 8 – Short, Nigel D – 1/2-1/2 – Kasparov, Garry – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. e5 dxe5 10. fxe5 Nfd7
TCh-RUS 2008 – Round 2 – Rublevsky, Sergei – 1-0 – Efimenko, Zahar – G52 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 Qa5 9. Qd2 Be7 10. O-O-O Nc5
VSB, Amsterdam NED 1996 – Round 3 – Topalov, Veselin – 0-1 – Short, Nigel D – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. O-O Nfxe4 10. Nxe4 Nxe4
World Cup 1989 – Round ? – Ehlvest, Jaan – 1/2-1/2 – Kasparov, Garry – G87 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 h6 9. Bh4 Qa5 10. O-O Qh5
World Cup 1989 – Round 15 – Ehlvest, Jaan – 1/2-1/2 – Tal, Mikhail – G84 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 h6 9. Bh4 Qa5 10. f3 Be7
World Cup 1989 – Round 8 – Korchnoi, Viktor – 1/2-1/2 – Ribli, Zoltan – G61 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Qc7 9. Qe2 Na5 10. g4 b5

B86d — Sozin-Najdorf

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3

Eval: [+0.16]

Les coups candidats

7…b5 — 43.0% (9189 parties) →

Ambassadeurs : Conterno, Dominique (37x), ? (24x), Farago, Sandor (22x), Gelfand, Boris (21x), Velimirovic, Dragoljub (20x), Timmerman, Gert (20x), Novikov, Igor (19x), De Firmian, Nick (17x)

7…Nbd7 — 26.3% (5627 parties)

Ambassadeurs : Conterno, Dominique (33x), Vavra, Pavel (15x), Ftacnik, Lubomir (15x), Tomczak, Jacek (15x), Dvoirys, Semen I. (15x), Kunzelmann, Fred Dr (14x), Eberth, Zoltan Bela (12x), Burrows, Martin P (12x)

7…Be7 — 23.0% (4919 parties) →

Ambassadeurs : Loginov, Valery A (19x), Eberth, Zoltan Bela (17x), Farago, Sandor (14x), Zagrebelny, Sergey (11x), Burchardt, Brigitte (11x), Almasi, Istvan (10x), Decka, Eliska (9x), Jackova, Jana (9x)

7…Nc6 — 5.4% (1152 parties)

Ambassadeurs : L`Ami, Alina (12x), Kupreichik, Viktor D (8x), De Firmian, Nick (7x), Petrushin, Alexander I (6x), Istratescu, Andrei (6x), Leitao, Rafael (6x), Rodriguez Cespedes, Amador (5x), Morozevich, Alexander (5x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…b5	7…Nbd7	7…Be7	7…Nc6
<1800	506	36%	19%	38%	4%
1800-2200	7398	37%	26%	28%	5%
2200-2600	8681	47%	32%	14%	6%
2600+	196	46%	38%	5%	10%

Évolution par décennie (% des parties)

Décennie	N parties	7…b5	7…Nbd7	7…Be7	7…Nc6
1790s	1	—	—	100%	—
1930s	1	—	100%	—	—
1950s	51	16%	—	49%	29%
1960s	428	39%	7%	45%	7%
1970s	867	65%	2%	27%	4%
1980s	1156	68%	5%	21%	5%
1990s	4788	44%	25%	22%	7%
2000s	7481	43%	27%	22%	6%
2010s	5697	35%	35%	23%	4%
2020s	916	42%	34%	19%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…b5	35%	42%	▲ +7.2%
7…Nbd7	35%	34%	▼ -1.7%
7…Be7	23%	19%	▼ -3.9%
7…Nc6	4%	4%	-0.5%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 7 parties
Ju, Wenjun — 4 parties
Smyslov, Vladimir — 1 partie
Euwe, Max — 1 partie
Hou, Yifan — 1 partie

Parties historiques

7…b5 — 43.0% (9189 parties)

1953 — Burkhardt, Erich vs Herrmann, Ludwig — 0-1 — Jena GER
1959 — Benko, Pal vs Tal, Mikhail — 0-1 — Bled/Zagreb/Belgrade
1959 — Nikitin, Aleksander S vs Tringov, Georgi P — 0-1 — Budapest HUN
1959 — Fischer, Robert J vs Tal, Mikhail — 0-1 — Belgrade/Bled/Zagreb YUG
1959 — Honfi, Karoly vs Szabo, Laszlo — 1/2-1/2 — Budapest HUN

7…Nbd7 — 26.3% (5627 parties)

1937 — Eisinger Max vs Reinhardt, Heinrich — 0-1 — Hamburg GER
1960 — Wexler, Bernardo vs Foguelman, Alberto — 1/2-1/2 — Buenos Aires ARG
1963 — Scanavino, Eduardo vs Panno, Oscar — 1/2-1/2 — Buenos Aires ARG
1964 — Witkowski, Alan vs Drozd , Alexandr — 1/2-1/2 — POL-ch21 Warsaw POL
1964 — Bednarski, Jacek vs Bogdanovic, Rajko — 1-0 — Zinnowitz GER

7…Be7 — 23.0% (4919 parties)

1792 — Janetschek, Karl vs Kormanyos, Zoltan — 1-0 — Kecskemet HUN
1952 — Andric, Dragoslav vs Vukovic, Sava — 1/2-1/2 — Belgrade SRB
1952 — Steinberg, Jose vs Garcia Vera, Romeo — 1-0 — Rosario ARG
1955 — Rosenfeld, Isai K vs Luik, Helmuth — 1-0 — Tallinn EST
1955 — Novikov, Adolf vs Boleslavsky, Isaac — 1/2-1/2 — White Russia

7…Nc6 — 5.4% (1152 parties)

1954 — Kasparian, Genrikh vs Kotov Lundqvist, Alex — 0-1 — Erevan ARM
1956 — Altschul, Milos vs Lax, Hendrich — 1-0 — Bratislava SVK
1957 — Bogdanovic, Rajko vs Udovcic, Mijo — 1-0 — Sombor
1957 — Kinzel, Anton vs Nievergelt, Erwin — 1-0 — Bern SUI
1958 — Suetin, Alexey S vs Bertok, Mario Jr. — 1/2-1/2 — Zagreb CRO

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