B87e — Sicilian: Sozin-Najdorf, 7.Bb3 b5 8.O-O Be7 9.Qf3

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3 b5 8.O-O Be7 9.Qf3 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité aile_dame (3v2), case forte e4, case forte f4, Bb3 actif, paire de fous, colonne d.
Faiblesses adverses : Be7 enfermé, Bc8 enfermé, roi noir au centre.
Problèmes : Bc1 enfermé.
Plans :
● Bg5 — Clouer Nf6
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), paire de fous, colonne c.
Faiblesses adverses : Bc1 enfermé, Bb3 mauvais fou.
Problèmes : roi au centre, Be7 enfermé, Bc8 enfermé, 4 pièces non développées (B8, C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, ...Bf5)
● ...Nbd7 — Développer Nb8
● ...d5 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B87e — Sozin-Najdorf

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3 b5 8.O-O Be7 9.Qf3

Eval: [-0.08]

Les coups candidats

9…Qc7 — 53.8% (2175 parties)

Ambassadeurs : Conterno, Dominique (22x), Sychov, Aleksandr Vitalievi (14x), Garcia, Hamlet Danilo (13x), Vaulin, Alexander P. (11x), Gelfand, Boris (11x), Browne, Walter Shawn (10x), Wojtkiewicz, Aleksander (10x), Lifshitz, Samuel (10x)

9…Qb6 — 41.8% (1688 parties)

Ambassadeurs : Conterno, Dominique (13x), Lifshitz, Samuel (11x), Novikov, Igor (9x), Tomczak, Jacek (9x), Krueger, Hilmar (8x), Sychov, Aleksandr Vitalievi (8x), Sieciechowicz, Marcin (8x), Gelfand, Boris (7x)

9…Bb7 — 2.1% (85 parties)

Ambassadeurs : Lukin, Andrei M (3x), Dobias, Richard (2x), Staikopoulos, Anastasios (2x), Kholmov, Ratmir D (1x), Bobotsov, Milko G (1x), Antoszkiewicz, Gerhard (1x), Neumann, Manfred (1x), Starck, Ines (1x)

9…Ra7 — 1.1% (43 parties)

Ambassadeurs : Sorensen, Jan (3x), Sunye Neto, Jaime (2x), Ortega, Lexy (2x), Kristensen, Kaare Hove (2x), De Souza, Mauro Guimaraes (1x), Veingold, Aleksandr (1x), Borkowski, Franciszek (1x), Mitkov, Nikola (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Qc7	9…Qb6	9…Bb7	9…Ra7
<1800	72	62%	24%	10%	1%
1800-2200	1117	56%	38%	4%	1%
2200-2600	2075	52%	45%	1%	1%
2600+	65	60%	40%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…Qc7	9…Qb6	9…Bb7	9…Ra7
1960s	6	83%	—	17%	—
1970s	66	52%	44%	2%	—
1980s	224	43%	51%	3%	1%
1990s	1008	54%	38%	3%	3%
2000s	1395	61%	36%	2%	1%
2010s	1160	49%	49%	2%	0%
2020s	181	45%	52%	2%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Qc7	49%	45%	▼ -3.5%
9…Qb6	49%	52%	▲ +3.7%
9…Bb7	2%	2%	-0.1%
9…Ra7	0%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 8 parties
Anand, Viswanathan — 4 parties
Ju, Wenjun — 2 parties
Tal, Mikhail — 1 partie
Hou, Yifan — 1 partie

Parties historiques

9…Qc7 — 53.8% (2175 parties)

1960 — Fischer, Robert J vs Olafsson, Fridrik — 1/2-1/2 — Buenos Aires ARG
1962 — Vasiukov, Evgeni vs Raetsch, Heinz — 1-0 — Lasker mem Berlin-Ost
1968 — Wegener, Hans Karl vs Schmaus, Alexandru — 0-1 — corr FRG/K
1969 — Vasiukov, Evgeni vs Polugaevsky, Lev — 1/2-1/2 — Moskou ch-URS
1969 — Davidian, J vs Browne, Walter Shawn — 1-0 — Santa Monica, CA USA

9…Qb6 — 41.8% (1688 parties)

1971 — Aburto Ramirez, Oscar Eduardo vs Kavalek, Lubomir — 0-1 — USA-72ch Ventura
1972 — Browne, Walter Shawn vs Benko, Pal — 1-0 — Malaga ESP
1972 — Bronstein, David I vs Andersson, Ulf — 1/2-1/2 — Las Palmas ESP
1973 — Mestel, A Jonathan vs Pinter, Jozsef — 1-0 — Groningen NED
1973 — Soltis, Andrew vs Kaufman, Lawrence — 0-1 — USA it Chicago, IL USA

9…Bb7 — 2.1% (85 parties)

1963 — Kholmov, Ratmir D vs Bobotsov, Milko G — 1/2-1/2 — Sochi RUS
1978 — Antoszkiewicz, Gerhard vs Neumann, Manfred — 1-0 — DDR-ch10 sf04 corr
1984 — Miedzinski, Kuba vs Brustman, Agnieszka — 0-1 — Poznan POL
1985 — Dagenais, Wilfrid vs Veltmann, Martin — 1/2-1/2 — Smith Falls CAN
1986 — Miagkov, J. vs Szczepaniak, Artur — 1-0 — corr Baltic tt

9…Ra7 — 1.1% (43 parties)

1988 — Veingold, Aleksandr vs Borkowski, Franciszek — 0-1 — St John
1989 — De Souza, Mauro Guimaraes vs Sunye Neto, Jaime — 0-1 — BRA-ch Fortaleza BRA
1990 — Akimov, Petr Ivanovich vs Cutillas Ripoll, Pascual — 1-0 — ?
1990 — Henao, Raul Fernando vs Verduga Zavala, Denis — 0-1 — Santa Clara CUB
1991 — Mitkov, Nikola vs Cvitan, Ognjen — 0-1 — Hartberg AUT

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● a6→b5, f7→e6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (2v1), ● f4 (2v0)	—
Cases faibles	—	—
Centre	● d5 (3v2), ● e4 (2v1)	● 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)
Be7		● Be7 Enfermé (mob. 1)
Bc8		● Bc8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	4 (b8, c8, a8, h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Au centre !
Droits de roque	—	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● e4-e5	● …d6-d5, ● …e6-e5

Partie
1960 Buenos Aires – Round 12 – Fischer, Robert J – 1/2-1/2 – Olafsson, Fridrik – G131 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 b4
1962 Lasker Memorial Berlin-Ost – Round 5 – Vasiukov, Evgeni – 1-0 – Raetsch, Heinz – G21 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Bg5 Nbd7
1963 Sochi – Round 4 – Kholmov, Ratmir D – 1/2-1/2 – Bobotsov, Milko G – G30 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O Be7 8. Bb3 b5 9. Qf3 Bb7 10. Bxe6 fxe6
1969 Moskou ch-URS – Round 1 – Vasiukov, Evgeni – 1/2-1/2 – Polugaevsky, Lev – G95 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Bc4 e6 7. O-O b5 8. Bb3 Be7 9. Qf3 Qc7 10. Re1 O-O
2. FIDE GP 2008 – Round 7 – Navara, David – 1/2-1/2 – Svidler, Peter – G38 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qb6 10. Be3 Qb7
4. London Chess Classic 2012 – Round 7.2 – Polgar, Judit – 1/2-1/2 – Anand, Viswanathan – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O b5 8. Bb3 Be7 9. Qf3 Qc7 10. a3 O-O
42. Olympiad 2016 – Round 1.10 – Tissir, Mohamed – 0-1 – Giri, Anish – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
Amber-rapid 5th 1996 – Round 2 – Ivanchuk, Vasyl – 1/2-1/2 – Kamsky, Gata – G6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O b5 8. Bb3 Be7 9. Qf3 Qb6 10. Bg5 Nbd7
Cap d'Agde 1994 – Round 1 – Hamdouchi, Hicham – 1/2-1/2 – Topalov, Veselin – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qb6 10. Be3 Qb7
Corus A 2008 – Round 9 – Adams, Michael – 1-0 – Van Wely, Loek – G60 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
Corus A 2009 – Round 3 – Adams, Michael – 1/2-1/2 – Dominguez Perez, Leinier – G19 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qb6 10. Be3 Qb7
FIDE WCh KO 2001 – Round 1.3 – Zapata, Alonso – 0-1 – Sutovsky, Emil – G124 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O b5 8. Bb3 Be7 9. Qf3 Qc7 10. Qg3 Nc6
FIDE-Wch k.o. 1999 – Round 3.1 – Lautier, Joel – 1/2-1/2 – Gelfand, Boris – G84 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
It 2001 – Round 3 – Morozevich, Alexander – 0-1 – Kasparov, Garry – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
Leningrad ch-URS 1977 – Round 1 – Kuzmin, Gennadi – 1/2-1/2 – Polugaevsky, Lev – G21 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 Nc6
Linares 1993 – Round 11 – Kasparov, Garry – 1-0 – Gelfand, Boris – G44 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
London rapid m 1993 – Round 2 – Short, Nigel D – 0-1 – Kasparov, Garry – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qb6 10. Be3 Qb7
Madrid 1996 – Round 6 – Morozevich, Alexander – 1-0 – Gelfand, Boris – G22 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
Paris Immopar rapid 1991 – Round 2 – Kasparov, Garry – 1-0 – Gelfand, Boris – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
PCA-World Championship 1993 – Round 16 – Short, Nigel D – 1-0 – Kasparov, Garry – G12 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 Nc6
PCA-World Championship 1993 – Round 18 – Short, Nigel D – 1/2-1/2 – Kasparov, Garry – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
PCA-World Championship 1993 – Round 20 – Short, Nigel D – 1/2-1/2 – Kasparov, Garry – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
PCA/Intel-GP 1994 – Round 1 – Short, Nigel D – 1-0 – Ehlvest, Jaan – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Re1 O-O
Tal Memorial Blitz 2008 – Round 4 – Ivanchuk, Vasyl – 1-0 – Gelfand, Boris – G31 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
Tashkent FIDE GP 2014 – Round 9.2 – Kasimdzhanov, Rustam – 1/2-1/2 – Gelfand, Boris – G50 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O Be7 8. Bb3 b5 9. Qf3 Qc7 10. Qg3 O-O
TCh-RUS 2008 – Round 11 – Rublevsky, Sergei – 1/2-1/2 – Karjakin, Sergey – G303 1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. d4 cxd4 5. Nxd4 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 Nc6
WCh Candidates 2011 – Round 1.3 – Mamedyarov, Shakhriyar – 0-1 – Gelfand, Boris – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 O-O
World Cup 1988 – Round 1 – Ehlvest, Jaan – 1-0 – Timman, Jan H – G59 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qc7 10. Qg3 b4
World Cup 1989 – Round 1 – Sokolov, Andrei – 1-0 – Portisch, Lajos – G41 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O b5 8. Bb3 Be7 9. Qf3 Qc7 10. Qg3 Nc6
XXV SuperGM 2008 – Round 10 – Ivanchuk, Vasyl – 1/2-1/2 – Topalov, Veselin – G35 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. Qf3 Qb6 10. Be3 Qb7

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