B49f — Sicilian: Taimanov, 6.Be3 a6 7.Be2 Nf6 8.O-O b5

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.O-O b5 * ○ 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, Be2 actif, Be3 actif, paire de fous, colonne d.
Faiblesses adverses : arriéré d7, Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Plans :
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), case forte b4, case forte e5, paire de fous, colonne c.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, arriéré d7, 4 pièces non développées (C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Be7 — Développer Bf8
● ...d5 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B49f —

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.O-O b5

Eval: [+0.48]

Les coups candidats

9.Nxc6 — 51.0% (519 parties)

Ambassadeurs : Matulovic, Milan (5x), Palac, Mladen (4x), Granda Zuniga, Julio E (4x), Stripunsky, Alexander (3x), Reshetnikov, Alexander (3x), Vokhidov, Shamsiddin (3x), Kurajica, Bojan (2x), Unzicker, Wolfgang (2x)

9.a3 — 35.5% (361 parties)

Ambassadeurs : Ladron De Guevara Pinto, Miguel (3x), From, Sigfred (2x), Holmsten, Aleksei (2x), S. Nabeela Farheen (2x), Jia, Haoxiang (2x), Rachwalski, Andrzej (2x), Jaworowski, Andre (2x), Wageih, Kareim (2x)

9.f4 — 6.8% (69 parties)

Ambassadeurs : Shahade, Gregory (2x), Richter, Kurt (1x), Gilg, Karl (1x), Hjartarson, Johann (1x), Angantysson, Haukur (1x), Widmann, Ru (1x), Lenz, Thomas (1x), Fernandez Vizan, JF. (1x)

9.Bf3 — 3.3% (34 parties)

Ambassadeurs : Leonhardt, Paul (1x), Rubinstein, Akiba (1x), Diaz Quejada, Ricardo (1x), Santacruz, Francisco (1x), Bedros, Jacques (1x), Haik, Aldo (1x), Fier, Alexandr (1x), Meszaros, Michal (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.Nxc6	9.a3	9.f4	9.Bf3
<1800	20	30%	45%	15%	5%
1800-2200	431	43%	42%	7%	4%
2200-2600	405	62%	26%	6%	2%
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9.Nxc6	9.a3	9.f4	9.Bf3
1900s	2	50%	—	—	50%
1910s	1	—	100%	—	—
1920s	2	50%	50%	—	—
1930s	3	67%	—	—	—
1940s	1	—	—	100%	—
1950s	8	62%	38%	—	—
1960s	28	71%	25%	—	—
1970s	30	57%	33%	7%	3%
1980s	28	46%	36%	11%	4%
1990s	104	52%	38%	5%	4%
2000s	349	47%	36%	9%	4%
2010s	391	52%	35%	6%	2%
2020s	71	51%	41%	4%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.Nxc6	52%	51%	▼ -1.7%
9.a3	35%	41%	▲ +6.1%
9.f4	6%	4%	▼ -1.9%
9.Bf3	2%	4%	▲ +1.9%

Joueurs célèbres

Champions du monde dans cette position

Hou, Yifan — 1 partie

Parties historiques

9.Nxc6 — 51.0% (519 parties)

1907 — Van Vliet, Lodewijk vs Bernstein, Olivia — 1-0 — Ostende II
1922 — Emmrich, K. vs Moritz, Bruno — 1/2-1/2 — Bad Oeynhausen m
1932 — Bellod Thomas, Gonzalo vs Steiner, Laszlo — 1-0 — Hastings ENG
1938 — Spielmann, Rudolf vs Landau, Salo — 1/2-1/2 — Amsterdam NED
1955 — Burstein, Almog vs Ciocaltea, Victor — 1/2-1/2 — Bucharest ROU

9.a3 — 35.5% (361 parties)

1912 — Olland, Adolf George vs Sjoberg, Victor — 1-0 — Stockholm SWE
1924 — Master Walter Aira vs Havasi, Kornel — 1-0 — Gyor
1955 — Spassky, Boris Vasily vs Aarland, Stein Arild — 1/2-1/2 — Moskou ch-URS
1956 — Sefc, Jan vs Zíta, František — 1/2-1/2 — Podebrady CZE
1959 — Eretova, Kveta vs Zvorykina, Kira — 0-1 — Plovdiv BUL

9.f4 — 6.8% (69 parties)

1940 — Richter, Kurt vs Gilg, Karl — 1-0 — Krakow POL
1973 — Luckans Ilmars vs Karasev, Vladimir I — 0-1 — Daugavpils LAT
1979 — Hjartarson, Johann vs Angantysson, Haukur — 0-1 — ISL-ch Reykjavik ISL
1982 — D`Arruda, Ricardo D. vs Mavrich, Rolando — 1-0 — ARG-ch sf Buenos Aires ARG
1987 — Widmann, Ru vs Lenz, Thomas — 0-1 — Dortmund open

9.Bf3 — 3.3% (34 parties)

1905 — Leonhardt, Paul vs Rubinstein, Akiba — 1/2-1/2 — Ostende
1972 — Bedros, Jacques vs Haik, Aldo — 0-1 — Skopje ol (Men) fin-D
1989 — Diaz Quejada, Ricardo vs Santacruz, Francisco — 1/2-1/2 — Asuncion PAR
1995 — Schweigert, Werner vs Baur, Volker, Dr. — 1/2-1/2 — German Ych-U13
1996 — Kromhout, Ewan vs Paraskevopoulos, Alexandros — 1-0 — South Africa Open

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● d7
Chaînes	—	● a6→b5, d7→e6, f7→e6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1)	● b4 (2v0), ● e5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Be2	● Be2 Actif (mob. 6)
Be3	● Be3 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	1 (a1)	4 (c8, f8, 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, ● f2-f3	● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1905 It (Men) Stockholm SWE – Round 3 – Leonhardt, Paul – 1/2-1/2 – Rubinstein, Akiba – G10 1. e4 c5 2. Nc3 e6 3. Nf3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 Nf6 7. O-O Nc6 8. Be3 b5 9. Bf3 Ne5 10. Qe2 Be7
1907 Ostende II – Round 26 – Van Vliet, Lodewijk – 1-0 – Bernstein, Olivia – G306 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 Nf6 7. O-O Nc6 8. Be3 b5 9. Nxc6 dxc6 10. Bf3 Bb7
1924 Gyor – Round 1 – Master Walter Aira – 1-0 – Havasi, Kornel – G36 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 Nc6 7. Be3 b5 8. O-O Nf6 9. a3 Bb7 10. Kh1 Be7
1932 Hastings3233 – Round 2 – Bellod Thomas, Gonzalo – 1-0 – Steiner, Laszlo – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 a6 7. Be3 Nf6 8. O-O b5 9. Nxc6 dxc6 10. f4 b4
1937 Hastings3738 – Round 8 – Thomas, George Alan – 0-1 – Mikenas, Vladas – G33 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 Nf6 7. Be3 a6 8. O-O b5 9. f3 Bc5 10. Qd2 Qb6
1940 Krakow – Round 3 – Richter, Kurt – 1-0 – Gilg, Karl – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Qc7 8. Be3 b5 9. f4 b4 10. Na4 Nxe4
1955 Moskou ch-URS – Round 1 – Spassky, Boris Vasily – 1/2-1/2 – Aarland, Stein Arild – G79 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Nc6 8. Be3 b5 9. a3 Bb7 10. Kh1 Be7
1955 Moskou ch-URS – Round 13 – Simagin, Vladimir – 1-0 – Kan, Ilya A – G137 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Nc6 8. Be3 b5 9. Nxc6 dxc6 10. f4 b4
1956 CSR Ch – Round 19 – Sefc, Jan – 1/2-1/2 – Zíta, František – G175 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 b5 7. O-O Nc6 8. Be3 Nf6 9. a3 Bb7 10. Nb3 Ne5
1958 HUN Ch 13th – Round 17 – Pogats, Jozsef Jr. – 1/2-1/2 – Szily, Jozsef – G144 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Nc6 8. Be3 b5 9. Nxc6 dxc6 10. Bf3 e5
1960 Buenos Aires – Round 3 – Unzicker, Wolfgang – 1/2-1/2 – Korchnoi, Viktor – G43 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 a6 7. O-O Nf6 8. Be3 b5 9. Nxc6 dxc6 10. f4 b4
1960 Buenos Aires – Round 3 – Unzicker, Wolfgang – 1/2-1/2 – Korchnoi, Viktor – G44 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 a6 7. O-O Nf6 8. Be3 b5 9. Nxc6 dxc6 10. f4 b4
1961 URS-ch29 sf Novgorod – Round 6 – Hasidovski, Arnold – 0-1 – Suetin, Alexey S – G13 1. e4 c5 2. d4 cxd4 3. Nf3 e6 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. O-O Nf6 8. Be3 b5 9. Nxc6 dxc6 10. a3 e5
1961 USSR – Round 1 – Antoshin, Vladimir S – 1-0 – Barsky, Sam – G14 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 Nf6 7. Be2 a6 8. O-O b5 9. Nxc6 dxc6 10. f4 b4
1964 Tel Aviv olm fin-A – Round 3 – Bialas, Wojciech – 1/2-1/2 – Matulovic, Milan – G67 1. Nf3 c5 2. e4 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be2 a6 7. Be3 Nf6 8. O-O b5 9. Nxc6 dxc6 10. a3 Bb7
1964 Tel Aviv olm prel – Round 5 – Jansa, Vlastimil – 1/2-1/2 – Rodriguez Vargas, Orestes – G186 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Be3 Qc7 6. Nc3 a6 7. Be2 Nf6 8. O-O b5 9. Nxc6 dxc6 10. a3 c5
1965 Buenos Aires – Round 7 – Panno, Oscar – 1-0 – Najdorf, Miguel – G44 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. Be3 Nf6 8. O-O b5 9. a3 Bb7 10. Kh1 Na5
1965 Mar del Plata – Round 13 – Sanguinetti, Ricardo – 0-1 – Aguayo Cruz, Ramon Uriel – G102 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. O-O Nf6 8. Be3 b5 9. Nxc6 dxc6 10. f4 Be7
1966 Buenos Aires ch-ARG – Round 1 – Mangas Molteni, Fernando Gabriel – 1/2-1/2 – Bazan, Osvaldo – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be2 a6 7. Be3 b5 8. O-O Nf6 9. Nxc6 dxc6 10. a3 Bb7
1966 Hungary – Round 1 – Foldi, Jozsef – 1/2-1/2 – Flesch, János – G17 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. Be2 Qc7 7. O-O Nf6 8. Be3 b5 9. Nxc6 dxc6 10. f4 Be7
1967 Maribor – Round 5 – Musil, Vitezslav – 1/2-1/2 – Matulovic, Milan – G32 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 b5 9. Nxc6 dxc6 10. f4 Bb7
1968 Copenhagen ch-DEN – Round 1 – Jensen Frode Fihl – 1-0 – From, Sigfred – G26 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. O-O b5 9. a3 Bb7 10. f4 b4
1968 Lasker Memorial – Round ? – Radovici, Corvin – 1/2-1/2 – Schoeneberg, Manfred – G36 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. Be3 Nf6 8. O-O b5 9. Nxc6 dxc6 10. a3 Be7
1968 YUG Ch 23th – Round 5 – Matulovic, Milan – 0-1 – Kurajica, Bojan – G26 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 b5 9. Nxc6 dxc6 10. f4 b4

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