B89b — Sicilian: Sozin, 7.Be3 a6

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Be3 a6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité aile_dame (3v2), case forte d4, Be3 actif, Bc4 actif, paire de fous, colonne d.
Faiblesses adverses : arriéré b7, Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre.
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), case forte e5, avant-poste e5(C), paire de fous, colonne c.
Faiblesses adverses : roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, arriéré b7, 4 pièces non développées (C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bf5)
● ...Be7 — Développer Bf8
● ...Na5 — Attaquer Bc4
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B89b — Sozin

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Be3 a6

Eval: [+0.42]

Les coups candidats

8.Qe2 — 55.3% (2040 parties) →

Ambassadeurs : Madl, Ildiko (22x), Sher, Miron (13x), Hector, Jonny (13x), Inkiov, Ventzislav (12x), Lamford, Paul (11x), Kupreichik, Viktor D (11x), Nunn, John D M (10x), Wolff, Patrick G (9x)

8.Bb3 — 31.8% (1172 parties)

Ambassadeurs : Madl, Ildiko (15x), Velimirovic, Dragoljub (11x), Wittmann, Walter (10x), Videki, Sandor (9x), Lupulescu, Constantin (9x), De Firmian, Nick (9x), Lerner, Konstantin Z (7x), Aseev, Konstantin N (7x)

8.O-O — 4.0% (147 parties)

Ambassadeurs : Thipsay, Praveen M (3x), Jogi, Jakob (2x), Sandrin, Angelo (1x), Kaiser, Wolfgang (1x), Heintze, Marion (1x), Nuenchert, Eveline (1x), Liberzon, Vladimir M (1x), Portisch, Lajos (1x)

8.f3 — 2.5% (91 parties)

Ambassadeurs : Albert, Kornelia (3x), Grabics, Monika (2x), Csorba, Janos (2x), Blackstone, John (1x), Pedez, Onestes (1x), Dokladal P (1x), Zavodny, Zdenek (1x), Raposo Ignacio (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Qe2	8.Bb3	8.O-O	8.f3
<1800	46	15%	22%	20%	9%
1800-2200	717	45%	31%	7%	6%
2200-2600	2219	60%	34%	2%	1%
2600+	40	45%	45%	2%	—

Évolution par décennie (% des parties)

Décennie	N parties	8.Qe2	8.Bb3	8.O-O	8.f3
1940s	2	—	—	—	—
1950s	6	—	17%	33%	17%
1960s	62	31%	55%	8%	2%
1970s	205	60%	36%	1%	—
1980s	433	76%	17%	1%	1%
1990s	968	56%	34%	3%	2%
2000s	1130	53%	33%	4%	3%
2010s	672	46%	35%	7%	3%
2020s	213	57%	26%	5%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Qe2	46%	57%	▲ +11.7%
8.Bb3	35%	26%	▼ -9.1%
8.O-O	7%	5%	▼ -1.5%
8.f3	3%	2%	▼ -1.4%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 3 parties
Kasparov, Garry — 3 parties
Hou, Yifan — 3 parties
Kramnik, Vladimir — 2 parties
Anand, Viswanathan — 2 parties
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Ding, Liren — 1 partie

Parties historiques

8.Qe2 — 55.3% (2040 parties)

1964 — Litvinov, Vladimir vs Muehlberg, Siegfried — 1-0 — Minsk BLR
1966 — Kupreichik, Viktor D vs Liljedahl, Lennart — 1-0 — Groningen NED
1967 — Ribli, Zoltan vs Dely, Peter — 0-1 — Budapest HUN
1967 — Zatulovskaya, Tatiana vs ? — 1/2-1/2 — Subotica SRB
1967 — Palda, Karl vs Grabler — 1-0 — Austria

8.Bb3 — 31.8% (1172 parties)

1959 — Fabian, Jaroslav vs Rejfir, Josef — 1/2-1/2 — Cerveny Kostelec
1963 — Ladanyike-Karakas, Eva vs Borisenko-Belova, Valentina — 0-1 — Budapest HUN
1964 — Fischer, Raphael vs King Ruiz, Saul — 0-1 — Westerly simultaan
1964 — Fischer, Robert J vs King Stan — 0-1 — Westerly
1965 — Honfi, K. vs Jakobsen, Ole — 0-1 — Copenhagen DEN

8.O-O — 4.0% (147 parties)

1955 — McLellan, Richard Alan vs Colby, Kenneth Mark — 1-0 — Long Beach, CA USA
1955 — Cross, Robert Gary vs Kovacs, Zoltan — 1-0 — ?
1965 — Sandrin, Angelo vs Kaiser, Wolfgang — 1-0 — North Central Open
1965 — Liberzon, Vladimir M vs Portisch, Lajos — 1-0 — Erevan ARM
1966 — Jackson, Leroy vs Dahlberg, Ivars — 0-1 — Seattle, WA USA

8.f3 — 2.5% (91 parties)

1959 — Blackstone, John vs Pedez, Onestes — 0-1 — Omaha, NE
1965 — Dokladal P vs Zavodny, Zdenek — 1-0 — Brno CZE
1982 — Slavotinek, Anne vs David Glaz, Ilana — 0-1 — Lucerne SUI
1983 — Jerkovic, Boris vs Galic, Zeljko — 0-1 — Bela Crkva open
1985 — Raposo Ignacio vs Loureda Garcia, Jose Antonio — 0-1 — ?

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1)	● e5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v2)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Be3	● Be3 Actif (mob. 5)
Bc4	● Bc4 Actif (mob. 8)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	2 (a1, h1)	4 (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
1. Investbanka 1987 – Round 1 – Ljubojevic, Ljubomir – 1-0 – Salov, Valery – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qc7 9. Qe2 Na5 10. g4 b5
1948 Budapest Budapest HUN – Round 14 – Tartakower, Savielly – 0-1 – Barcza, Gedeon – G15 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. a4 Qc7 9. Qe2 Bd7 10. f4 Rc8
1959 Cerveny Kostelec – Round ? – Fabian, Jaroslav – 1/2-1/2 – Rejfir, Josef – G21 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qc7 9. O-O b5 10. Nxc6 Qxc6
1963 Budapest HUN – Round 3.9 – Ladanyike-Karakas, Eva – 0-1 – Borisenko-Belova, Valentina – G15 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Na5 9. O-O b5 10. a3 Bb7
1963 Luzern Clare Benedic – Round ? – Kinzel, Anton – 0-1 – Walther, Edgar – G10 1. e4 c5 2. Nc3 Nc6 3. Nge2 Nf6 4. d4 cxd4 5. Nxd4 d6 6. Bc4 e6 7. Be3 a6 8. f4 Qc7 9. Qe2 b5 10. Bd3 Bb7
1965 Copenhagen – Round 14 – Honfi, K. – 0-1 – Jakobsen, Ole – G112 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qc7 9. f4 Na5 10. Qf3 Be7
1965 Yerevan – Round 1 – Liberzon, Vladimir M – 1-0 – Portisch, Lajos – G5 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be3 Nf6 7. Bc4 a6 8. O-O Qc7 9. Bb3 Ne5 10. Qe2 Neg4
1966 Den Haag zt – Round 16 – Honfi, K. – 1/2-1/2 – Donner, H. – G86 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Be7 9. Qe2 Na5 10. O-O-O Qc7
1967 Hastings6768 – Round 6 – Hartston, William R – 0-1 – Suetin, Alexey S – G29 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qc7 9. O-O Be7 10. f4 O-O
1967 Sochi – Round 6 – Liebert, Heinz – 0-1 – Krogius, Nikolai V – G56 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be3 Nf6 7. Bc4 a6 8. Bb3 Na5 9. O-O b5 10. f4 Nxb3
1967 Sochi – Round 9 – Damjanovic, Marko – 0-1 – Krogius, Nikolai V – G75 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Na5 9. O-O b5 10. f4 Nxb3
1967 Sofia tt – Round 3 – Schoeneberg, Manfred – 0-1 – Minev, Nikolay N – G45 1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bc4 e6 7. Be3 a6 8. Bb3 Be7 9. Qe2 O-O 10. O-O-O Qc7
1967 Vrnjacka Banja zt – Round 5 – Gheorghiu, Florin – 1-0 – Barczay, Laszlo – G33 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qc7 9. Qe2 Na5 10. g4 h6
1968 Gori – Round 1 – Tal, Mikhail – 0-1 – Bokuchava, Alexander – G4 1. Nf3 c5 2. e4 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Na5 9. O-O b5 10. Qd3 Qd7
1968 Lugano ol (Men) fin-A – Round 10 – Hennings, Artur – 0-1 – Polugaevsky, Lev – G58 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 d6 6. Be3 Nf6 7. Bc4 a6 8. O-O Na5 9. Bd3 b5 10. Nb3 Bb7
1968 Olympiad Final A – Round 10 – Radulov, Ivan – 1-0 – Hamann, Slawomir – G18 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Be7 9. Qe2 Na5 10. O-O-O Qc7
1969 IBM – Round 1 – Ree, Hans – 0-1 – Liberzon, Vladimir M – G6 1. e4 c5 2. Nf3 d6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. Be3 Nf6 7. Bc4 a6 8. Bb3 Na5 9. f4 Nxb3 10. axb3 Be7
1969 Liberation – Round 11 – Hecht, Hans-Joachim – 0-1 – Polugaevsky, Lev – G50 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Bc4 Nf6 7. Be3 a6 8. Bb3 Na5 9. f3 b5 10. g4 Nxb3
1969 Nordic Ch – Round 2 – Hamann, Svend – 1-0 – Lahti Aki – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qa5 9. O-O Be7 10. f4 O-O
1969 Praia da Rocha zt – Round 16 – Levy, David N L – 1/2-1/2 – Schaufelberger, Heinz – G50 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Be7 9. Qe2 O-O 10. O-O-O Qa5
1969 Praia da Rocha zt – Round 5 – Hartston, William R – 1/2-1/2 – Schaufelberger, Heinz – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Na5 9. O-O b5 10. f4 Bb7
1969 Schwerin – Round 7 – Espig, Lutz – 1-0 – Kuettner, Uwe – G59 1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bc4 e6 7. Be3 a6 8. Bb3 Bd7 9. Qe2 Qc7 10. O-O-O Na5
1970 IBM – Round 8 – Scholl, Eddie C – 0-1 – Polugaevsky, Lev – G111 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Na5 9. O-O b5 10. f4 Qc7
1971 Moscow – Round 1 – Parma, Bruno – 0-1 – Tukmakov, Vladimir B – G145 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be3 Nf6 7. Bc4 a6 8. Bb3 Na5 9. f4 b5 10. f5 e5
1972 Skopje ol (Men) fin-A – Round 3 – Hamann, Slawomir – 0-1 – Gligoric, Sofija – G281 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. O-O Be7 9. Bb3 O-O 10. f4 Nxd4
1990 Linares 8th – Round 1 – Illescas Cordoba, Miguel – 0-1 – Salov, Valery – G3 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qc7 9. O-O Be7 10. f4 O-O
Buenos Aires Sicilian 1994 – Round 1 – Ljubojevic, Ljubomir – 0-1 – Anand, Viswanathan – G1 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qc7 9. f4 Be7 10. Qf3 Nxd4
ch-Wereld Teams 1989 – Round 1 – Ljubojevic, Ljubomir – 1/2-1/2 – Korchnoi, Viktor – G49 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Qd2 8. ... Qc7 9. O-O-O Be7 10. Bb3 O-O
Madrid 1996 – Round 9 – Morozevich, Alexander – 0-1 – San Segundo Carrillo, Pablo – G30 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Be7 9. f4 O-O 10. Qf3 Nxd4
PCA Qualifiers 1993 – Round 8 – Kaidanov, Gregory – 1-0 – Smirin, Ilia – G151 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Qc7 9. f4 Be7 10. O-O Na5
SuperUnited Blitz 2022 – Round 11.5 – Van Foreest, Jorden – 1-0 – Saric, Ivan – G55 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bc4 Nc6 6. Nc3 e6 7. Be3 a6 8. a4 Bd7 9. O-O Be7 10. Re1 O-O
World Blitz 2019 – Round 6.86 – Alekseenko, Kirill – 1-0 – Gutenev, Alexander – G448 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Bb3 Be7 9. O-O O-O 10. f4 Nxd4
World Cup 1988 – Round 1 – Sax, Gyula – 1/2-1/2 – Tal, Mikhail – G61 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Bb3 Na5 9. f3 b5 10. O-O Be7

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