B56e — Sicilian: Open, 2…d6, 5.Nc3 Nbd7 6.Bc4

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nbd7 6.Bc4 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Bb3 (Fou actif (mobilité 5) — 36 % des parties) ; O-O (Mettre le roi en sécurité, connecter les tours — 25 % des parties) ; Bg5 (Fou actif (mobilité 7), Développer c1 — 8 % des parties) ; Be3 (Fou actif (mobilité 5), Développer c1 — 8 % des parties) ; f3 (Poussée — 8 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Nb6 (30 % des parties) ; ...a6 (Préparer expansion aile dame — 26 % des parties) ; ...g6 (Préparer le fianchetto — 20 % des parties) ; ...e6 (Poussée — 8 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● e7→d6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (3v0), ● d5 (3v1), ● f5 (2v0)	● c5 (2v0), ● e5 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0), ● d5 (3v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bc4	● Bc4 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	3 (● c1, ● 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	mobile
Ruptures	● e4-e5	● …d6-d5

Partie
1957 Leningrad – Round 1 – Milic, Borislav – 1/2-1/2 – Petrosian, Tigran A. – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 g6 7. f3 Bg7 8. Be3 O-O 9. Qd2 Nb6 10. Bb3 Bd7
1957 URS-JUG – Round 5 – Milic, Borislav – 1/2-1/2 – Petrosian, Tigran V – G24 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 g6 7. f3 Bg7 8. Be3 O-O 9. Qd2 Nb6 10. Bb3 Bd7
1960 BRA-ch27 – Round 14 – Camara, Helder – 0-1 – Mendes, Silvio Luiz Teixeira – G33 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 a6 7. a4 e6 8. O-O b6 9. Qe2 Bb7 10. Bg5 Qc7
1961 Moscow Ch – Round 17 – Korzin, Vitaly A – 1/2-1/2 – Ignatiev, Felix N – G34 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nf3 Be7 9. O-O O-O 10. Bg5 Be6
1961 Zevenaar – Round 1 – Matanovic, Aleksandar – 1-0 – Perez Perez, Francisco Jose – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 g6 7. Bg5 Bg7 8. Qe2 Qa5 9. h4 h6 10. Nb3 Qc7
1962 Torremolinos zt – Round 1 – O'Kelly, Albéric de Galway – 1-0 – Perez Perez, Francisco Jose – G12 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 g6 7. Be3 Bg7 8. f3 a6 9. Bb3 Nc5 10. Qd2 Bd7
1965 Capablanca Memorial – Round 16 – Perez Perez, Francisco Jose – 0-1 – Bilek, Istvan – G162 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 g6 7. f3 Bg7 8. Be3 a6 9. Qd2 h5 10. h3 Qc7
1966 Kislovodsk – Round 3 – Tal, Mikhail – 1-0 – Taimanov, Mark E – G17 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Qc7 7. Qe2 a6 8. Bg5 b5 9. Bd5 Nxd5 10. Nxd5 Qb7
1966 Le Havre – Round 6 – Brunet Chiaramonti, Achille – 1/2-1/2 – Gereben, Erno – G42 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 g6 7. Bb3 Bg7 8. Be3 O-O 9. f3 a6 10. Qd2 Nc5
1966 Tbilisi ch-URS – Round 2 – Suetin, Alexey S – 1/2-1/2 – Taimanov, Mark E – G16 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be6 9. Bg5 Be7 10. Qd3 O-O
1967 Budva – Round ? – Gipslis, Aivars – 1/2-1/2 – Taimanov, Mark E – G32 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be6 9. Bg5 Be7 10. Qd3 O-O
1967 GDR Ch – Round 6 – Vogt, Lothar – 0-1 – Liebert, Heinz – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 g6 7. Be3 Bg7 8. f3 a6 9. Bb3 b5 10. Nc6 Qc7
1967 Hastings6768 – Round 4 – Basman, Michael J – 0-1 – Stein, Leon Rico – G17 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 a6 7. O-O g6 8. Re1 Bg7 9. a4 O-O 10. a5 Ne5
1967 Leningrad – Round 1 – Privorotsky, Oleg – 0-1 – Chistiakov, Alexander – G24 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 a6 7. O-O g6 8. f4 Bg7 9. Nf3 b5 10. Bb3 Bb7
1967 Reggio Emilia 6768 10th – Round 2 – Huguet, Bernard – 0-1 – Ciocaltea, Victor – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be7 9. f3 O-O 10. Be3 Be6
1967 ROM Ch – Round 3 – Nacht, Edgar – 1/2-1/2 – Ciocaltea, Victor – G19 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be7 9. O-O O-O 10. f4 Be6
1967 Sousse Interzonal – Round 13 – Matulovic, Milan – 1-0 – Cuellar Alpire, Mariana – G119 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be6 9. Bg5 Be7 10. Qd3 O-O
1967 Sousse Interzonal – Round 20 – Gipslis, Aivars – 1-0 – Bilek, Istvan – G182 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 g6 7. f3 Bg7 8. Be3 Ne5 9. Bb3 Bd7 10. h4 Rc8
1967 Sousse Interzonal – Round 3 – Byrne, Ray – 1-0 – Cuellar Alpire, Mariana – G24 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be6 9. Bg5 Be7 10. Bxf6 Bxf6
1967 YUG Ch 22th – Round 9 – ? – 1/2-1/2 – Bogdanovic, Rajko – G45 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be6 9. Bg5 Be7 10. Qd3 O-O
1967 Zierikzee ch-NED – Round 1 – Scholl, Eddie C – 0-1 – Langeweg, Kick – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Qa5 7. O-O g6 8. Nb3 Qc7 9. Be2 Bg7 10. f4 O-O
1968 Bristol ch-BCF – Round 1 – Perkins, Alan H – 1/2-1/2 – Parr, Frank – G8 1. e4 c5 2. Nf3 Nf6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nbd7 6. Bc4 g6 7. f3 Bg7 8. Be3 a6 9. Qd2 O-O 10. O-O-O Qc7
1968 Buesum – Round 9 – Tringov, Georgi P – 1/2-1/2 – Mohrlok, Dieter – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be6 9. Bg5 Be7 10. Qd3 O-O
1968 Hoogovens – Round 8 – Ree, Hans – 1/2-1/2 – Hort, Vlastimil – G72 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be7 9. O-O Be6 10. Bg5 O-O
1968 Netanya-A – Round 2 – Czerniak, Magdalena – 1/2-1/2 – Ciocaltea, Victor – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 e5 7. Nde2 Nb6 8. Bb3 Be6 9. Bg5 Be7 10. O-O O-O
1968 OWL Ch – Round 11 – Soelter, Reinhold – 1/2-1/2 – Groenegress, Wilfried – G24 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Be2 e5 8. Nb3 Be7 9. O-O O-O 10. a4 Be6
1969 Monaco – Round 7 – Casa, Alex – 0-1 – Ciocaltea, Victor – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nf3 Be7 9. O-O O-O 10. Qe2 Be6
1969 Raach zt – Round 17 – Camilleri, Henry – 0-1 – Jansson, Borje – G143 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nb6 7. Bb3 e5 8. Nde2 Be7 9. O-O O-O 10. Ng3 Be6
1969 Schwerin – Round 1 – Schoeneberg, Manfred – 1/2-1/2 – Malich, Burkhard, Dr. – G21 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Bc4 Nc5 7. O-O e6 8. Qe2 Be7 9. b4 Na6 10. Bb5+ Bd7

B56e — Open (1957)

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nbd7 6.Bc4

Les coups candidats

6…Nb6 — 30.2% (49 parties)

Ambassadeurs : Groenegress, Wilfried (5x), Ciocaltea, Victor (4x), Lagland, Goran (3x), Seeger, Werner (3x), Essegern, Kurt, Dr. (3x), Ribli, Zoltan (2x), Taimanov, Mark (2x), Hort, Vlastimil (2x)

6…a6 — 26.5% (43 parties)

Ambassadeurs : Bak, Istvan (3x), Westerinen, Heikki M.J. (2x), Richter, Gerhard, Dr. (2x), Tal, Mikhail (1x), Petrosian, Tigran V. (1x), Camara, Helder (1x), Mendes, Silvio Luiz Teixeira (1x), Privorotsky, Oleg (1x)

6…g6 — 19.8% (32 parties)

Ambassadeurs : Perez Perez, Francisco Jose (2x), Bak, Istvan (2x), Matanovic, Anto (1x), Perez Florencio (1x), O'Kelly de Galway, Alberic (1x), Ferloni, Jose W Perez (1x), Mohrlok, Dieter (1x), Chiaramonti, Jacques (1x)

6…e6 — 8.0% (13 parties)

Ambassadeurs : Koppenhoefer, Bernhard, Prof. Dr (4x), OBrien, Erik Michael (1x), Capps, Carroll (1x), Foell, Thomas (1x), Samak, Alexander (1x), Straub, Tobias (1x), Von Buelow, Georg (1x), Horvath, Tamas (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Nb6	6…a6	6…g6	6…e6
<1800	12	8%	58%	25%	—
1800-2200	42	21%	24%	21%	19%
2200-2600	43	30%	30%	19%	7%

Évolution par décennie (% des parties)

Décennie	N parties	6…Nb6	6…a6	6…g6	6…e6
1950s	2	—	50%	50%	—
1960s	43	42%	16%	26%	2%
1970s	19	74%	5%	5%	—
1980s	12	67%	25%	8%	—
1990s	34	12%	38%	3%	24%
2000s	25	8%	36%	28%	12%
2010s	23	9%	30%	39%	4%
2020s	4	25%	50%	25%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Nb6	9%	25%	▲ +16.3%
6…a6	30%	50%	▲ +19.6%
6…g6	39%	25%	▼ -14.1%
6…e6	4%	0%	▼ -4.3%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 2 parties

Parties historiques

6…Nb6 — 30.2% (49 parties)

1961 — Korzin, Vitaly A vs Ignatiev, Felix N — 1/2-1/2 — Moscow RUS
1966 — Suetin, Alexey S vs Taimanov, Mark — 1/2-1/2 — Tbilisi ch-URS
1967 — Huguet, Bernard vs Ciocaltea, Victor — 0-1 — Reggio Emilia ITA
1967 — Nacht, Edgar vs Ciocaltea, Victor — 1/2-1/2 — Bucharest ROU
1967 — Cuijpers, Frans Andre vs Ciocaltea, Victor — 1/2-1/2 — Halle zt Halle

6…a6 — 26.5% (43 parties)

1959 — Tal, Mikhail vs Petrosian, Tigran V. — 1/2-1/2 — Bled/Belgrade ct
1960 — Camara, Helder vs Mendes, Silvio Luiz Teixeira — 0-1 — Fortaleza BRA
1967 — Privorotsky, Oleg vs Chistiakov, Alexander — 0-1 — Leningrad RUS
1967 — Basman, Michael J vs Stein, Leonid — 0-1 — Hastings ENG
1967 — Jimenez Alastre Jorge Ernesto vs Szabo, Ladislav — 1/2-1/2 — Leningrad RUS

6…g6 — 19.8% (32 parties)

1957 — Milic, Borislav vs Petrosian, Tigran V. — 1/2-1/2 — Leningrad RUS
1961 — Matanovic, Anto vs Perez Florencio — 1-0 — Zevenaar
1962 — O'Kelly de Galway, Alberic vs Ferloni, Jose W Perez — 1-0 — Torremolinos zt
1962 — Mohrlok, Dieter vs Perez Perez, Francisco Jose — 1-0 — Beverwijk NED
1965 — Perez Perez, Francisco Jose vs Bak, Istvan — 0-1 — Havana CUB

6…e6 — 8.0% (13 parties)

1960 — OBrien, Erik Michael vs Capps, Carroll — 1-0 — San Francisco, CA USA
1993 — Van Riemsdijk, Herman C. vs Szmetan, Jorge — 0-1 — San Martin City ARG
1996 — Foell, Thomas vs Koppenhoefer, Bernhard, Prof. Dr — 1-0 — Tuebingen
1996 — Straub, Tobias vs Koppenhoefer, Bernhard, Prof. Dr — 1-0 — Tuebingen
1996 — Von Buelow, Georg vs Horvath, Tamas — 1/2-1/2 — Vienna op-B Vienna AUT

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