B43k — Sicilian: Kan, 5.Nc3 Qc7 6.Be2 Nf6

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 Nf6 * ○ 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), Be2 actif, paire de fous, colonne d.
Faiblesses adverses : arriérés b7, d7, Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, 3 pièces non développées (C1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Bg5 — Clouer Nf6
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Avantages : majorité centre (2v1), case forte c5, paire de fous, colonne c.
Faiblesses adverses : Bc1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, arriérés b7, d7, 5 pièces non développées (B8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nc6 — Développer Nb8
● ...Be7 — Développer Bf8
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B43k — Kan

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 Nf6

Eval: [+0.28]

Les coups candidats

7.O-O — 80.5% (4228 parties) →

Ambassadeurs : Zpevak, Pavel (21x), Kveinys, Aloyzas (17x), Nikolov, Momchil (15x), Panno, Oscar (12x), Rublevsky, Sergei (12x), Danin, Alexandre (12x), Paunovic, Dragan (11x), Landa, Konstantin (11x)

7.a3 — 9.7% (511 parties)

Ambassadeurs : Damjanovic, Mato (4x), Butkiewicz, Lukasz (3x), Bacon, Nicolas (3x), Aguilera Rocha, Angelina (2x), Hamann, Svend (2x), Tseshkovsky, Vitaly (2x), Ruppe, Otto (2x), Gershnik, Anna (2x)

7.Be3 — 3.5% (186 parties)

Ambassadeurs : Kievelitz, Bernd (2x), Lima, Luiz Alexandre de Souza (2x), Bensch, Patrick (2x), Kocur, Valter (2x), Juhasz, Sandor (2x), Davies, Noam (2x), Chambule, Pedro Lucas (2x), Ding, Yixin (2x)

7.Bg5 — 1.7% (87 parties)

Ambassadeurs : Carceles Ruiz, Francisco (2x), Rysbayeva, Korlan (2x), Sundien, Erik (1x), Clausen, Martin (1x), Shahin, Jallal (1x), Sirias, Danilo (1x), Jaffe, Eli (1x), Bame, Ken (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.O-O	7.a3	7.Be3	7.Bg5
<1800	198	61%	22%	6%	6%
1800-2200	1838	75%	13%	4%	2%
2200-2600	2221	91%	4%	2%	0%
2600+	54	96%	2%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.O-O	7.a3	7.Be3	7.Bg5
1880s	3	100%	—	—	—
1890s	1	—	—	—	—
1900s	5	100%	—	—	—
1910s	7	71%	29%	—	—
1920s	11	82%	9%	9%	—
1930s	2	50%	50%	—	—
1940s	1	100%	—	—	—
1950s	33	94%	6%	—	—
1960s	109	61%	25%	5%	—
1970s	140	80%	14%	1%	1%
1980s	179	88%	5%	1%	1%
1990s	772	80%	10%	4%	2%
2000s	1758	80%	9%	4%	2%
2010s	2009	82%	9%	3%	1%
2020s	220	75%	13%	2%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.O-O	82%	75%	▼ -7.4%
7.a3	9%	13%	▲ +3.6%
7.Be3	3%	2%	▼ -1.1%
7.Bg5	1%	3%	▲ +1.2%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 7 parties
Hou, Yifan — 7 parties
Anand, Viswanathan — 6 parties
Alekhine, Alexander — 3 parties
Lasker, Emanuel — 2 parties
Karpov, Anatoly — 2 parties
Ju, Wenjun — 2 parties
Smyslov, Vladimir — 1 partie

Parties historiques

7.O-O — 80.5% (4228 parties)

1881 — Zukertort, Johannes vs Paulsen, Wilfried — 0-1 — Berlin GER
1887 — White, Max vs Paulsen, Louis — 1-0 — Frankfurt GER
1888 — Von Bardeleben, Curt vs Paulsen, Wilfried — 1-0 — Leipzig GER
1904 — Forgacs, Leo vs Von Gottschall, Hermann — 1/2-1/2 — Coburg
1905 — Leonhardt, Paul vs Rubinstein, Akiba — 1/2-1/2 — Ostende

7.a3 — 9.7% (511 parties)

1911 — Dusek, Adolf vs Hromadka, Karel — 0-1 — Plzen CZE
1912 — Leonhardt, Paul vs Spielmann, Rudolf — 0-1 — San Sebastian ESP
1928 — Balparda, Julio vs Batista Grau, Ricardo — 0-1 — Mar del Plata ARG
1935 — Asztalos, Lajos vs Tot, Bora — 1/2-1/2 — Belgrado ch YUG
1956 — Balanel, Ion vs Flohr, Salo — 0-1 — Marianske Lazne

7.Be3 — 3.5% (186 parties)

1924 — Lasker, Emanuel vs Musilova, Veronika — 0-1 — 10.26 sim CZE Prague
1962 — Karaklajic, Nikola vs Damjanovic, Marko — 0-1 — Vrnjacka Banja SRB
1963 — Toth, Peter vs De Athayde, Mauro — 1/2-1/2 — Recife
1964 — Voskanyan, Vahagn vs Khodos, German — 1-0 — ?
1967 — Janata, Michael vs Litsberger, Rune — 1/2-1/2 — Veseli nad Moravou

7.Bg5 — 1.7% (87 parties)

1974 — Jaffe, Eli vs Bame, Ken — 1-0 — MOTCF,OH
1976 — Sundien, Erik vs Clausen, Martin — 1-0 — Aarhus DEN
1986 — Shahin, Jallal vs Sirias, Danilo — 0-1 — Dubai UAE
1992 — Garcia Luque, Agustin vs Pastor Pons, Carlos Luis — 1/2-1/2 — Seville ESP
1993 — Walker, David J vs Andrews, Steven — 0-1 — Eastpointe ch-MI 30'

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● b7, ● d7
Chaînes	—	● b7→a6, d7→e6, f7→e6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● c5 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0)	● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Be2	● Be2 Actif (mob. 8)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
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	● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1912 It (Men) San Sebastian ESP – Round 15 – Leonhardt, Paul – 0-1 – Spielmann, Rudolf – G34 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 Nf6 7. a3 b5 8. O-O Bb7 9. Bf3 d6 10. Qe2 Nbd7
1956 Marianske Lazne/Praha – Round 6 – Balanel, Ion – 0-1 – Flohr, Salo – G39 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. Nc3 Qc7 7. a3 b5 8. O-O Bb7 9. Qd3 Nc6 10. Nxc6 dxc6
1957 WchT U26 04th – Round 6.1 – Tumurbator, Purev – 0-1 – Polugaevsky, Lev – G69 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. O-O Bb7 9. Bf3 d6 10. Bg5 Nbd7
1961 Vrnjacka Banja ct women – Round 6 – Rinder, Elfriede – 1/2-1/2 – Gresser, Gisela Kahn – G29 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. Bf3 Nc6 8. Nxc6 dxc6 9. O-O e5 10. a3 Be6
1962 Vrnjacka Banja – Round 6 – Karaklajic, Nikola – 0-1 – Damjanovic, Marko – G63 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. Be3 Bb4 8. f3 d5 9. Bd2 Bxc3 10. Bxc3 dxe4
1963 Asztalos Memorial 6th – Round 12 – Barczay, Laszlo – 0-1 – Filip, Miroslav – G36 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. O-O Bb7 9. Bf3 d6 10. Bg5 Nbd7
1963 Halle zt – Round 1 – Ivkov, Borislav – 1/2-1/2 – Portisch, Lajos – G70 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. O-O Bb7 9. Qd3 d6 10. f4 Nbd7
1964 Chigorin Memorial – Round 9 – Nezhmetdinov, Rashid – 0-1 – Damjanovic, Mato – G61 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 Nc6 8. f4 Nxd4 9. Qxd4 Bc5 10. Qd3 d6
1964 DEN Ch Holstebro – Round 6 – Norby, Peter H. – 0-1 – Hamann, Svend – G21 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. Nc3 Qc7 7. a3 b5 8. O-O Bb7 9. Qd3 d6 10. Bg5 Nbd7
1964 RSFSR-HUN – Round 3.12 – Tseshkovsky, Vitaly – 1-0 – Polgar, Istvan – G20 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. O-O Bb7 9. Qd3 d6 10. f4 Nbd7
1964 Zagreb – Round 13 – Antunac, Goran – 0-1 – Damjanovic, Mato – G72 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. f4 Bb7 9. Bf3 b4 10. axb4 Bxb4
1965 Budapest2 – Round 1 – Janosevic, Dragoljub – 1-0 – Lengyel, Laszlo – G11 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. Bg5 Bb7 9. Qd3 b4 10. axb4 Bxb4
1965 Copenhagen – Round 1 – Honfi, K. – 1/2-1/2 – Hamann, Svend – G16 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. O-O Bb7 9. Bf3 d6 10. Bg5 Nbd7
1965 Copenhagen – Round 9 – Janosevic, Dragoljub – 0-1 – Suetin, Alexey S – G80 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. f4 Bb4 8. Bf3 Bxc3+ 9. bxc3 Qxc3+ 10. Qd2 Qxa1
1965 Harrachov U26 – Round 3 – Novak, Ervin – 1-0 – Bellin, Jana M – G7 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 Nc6 8. f4 d6 9. Be3 Be7 10. Bf3 Bd7
1965 Novi Sad – Round 7 – Ilievski, Dimitar – 1/2-1/2 – Damjanovic, Mato – G62 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. O-O Bb7 9. Bf3 d6 10. g3 Nbd7
1966 Sarajevo – Round 11 – Janosevic, Dragoljub – 1-0 – Jansa, Vlastimil – G35 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. f4 Bb4 8. e5 Bxc3+ 9. bxc3 Qxc3+ 10. Qd2 Qxa1
1967 EU Team Ch preliminary – Round 6 – Janata, Michael – 1/2-1/2 – Litsberger, Rune – G29 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. Be3 Bb4 8. O-O O-O 9. Bg5 Be7 10. f4 d6
1967 Havana Armies Ch 4th – Round 4 – Cifuentes Antonio – 0-1 – Vasiukov, Evgeni – G26 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 b5 8. f4 d6 9. Be3 Bb7 10. Bf3 Nbd7
1967 Szeczin – Round 11 – Witkowski, Stefan – 0-1 – Doda, Zbigniew – G9 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. f4 d6 8. Be3 Be7 9. Bf3 O-O 10. O-O Nc6
1968 Lugano olm - Round 1 - Jansa, Vlastimil - 0-1 - De Castro, Edgar - G187 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. f4 Bb4 8. e5 Ne4 9. O-O Nxc3 10. bxc3 Qxc3
1969 Mar del Plata zt – Round 1 – Riego, Victorio – 0-1 – Acosta Garcia, Rafael Isaac – G27 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 Be7 8. Be3 d6 9. Qd2 Nc6 10. O-O O-O

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