B51r — Sicilian: Moscow 3…Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Bf1 (Fou actif (mobilité 5) — 58 % des parties) ; Ba4 (Clouer c6 — 20 % des parties) ; Bxc6 (Clouer d7, Fou actif (mobilité 5) — 10 % des parties) ; d4 (Occuper le centre — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...a6 (Préparer expansion aile dame — 92 % des parties) ; ...e6 (Poussée — 3 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, d2→c3	● d6→c5, e7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● g4 (2v0), ● e5 (2v1)
Cases faibles	—	—
Centre	—	● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb5	● Bb5 Actif (mob. 7)
Bd7		● Bd7 Actif (mob. 5)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	3 (● 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	mobile
Ruptures	● d2-d4, ● e4-e5	● …d6-d5

├── B51t - 6…a6 7.Bf1 - Moscow 3…Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 (1948) [+0.41] · 66 parties (dont 39 ici)

│ └── B51u - 7…Bg4 8.h3 - Moscow 3…Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 Bg4 8.h3 (1965) [+0.13] · 27 parties

└── B51s - 6…a6 7.Ba4 - Moscow 3…Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4 (1948) [+0.31] · 19 parties

B51r — Moscow 3…Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 (1951)

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3

Les coups candidats

6…a6 — 91.7% (5642 parties)

Ambassadeurs : Tiviakov, Sergei (35x), Da Silva Filho, Alcindo Luz Bastos (34x), Grivas, Efstratios (27x), Movsesian, Sergei (25x), ? (21x), Babula, Vlastimil (20x), Markos, Jan (19x), Glek, Igor (18x)

6…e6 — 3.1% (193 parties)

Ambassadeurs : Moehring, Guenther (2x), Kersten, Uwe (2x), Oezdemir, Niad (2x), Molander, Riku (2x), Boleslavsky, Isaac (1x), Ilivitsky, Georgy A (1x), Sydor, Andrzej (1x), Gaprindashvili, Nona (1x)

6…g6 — 2.4% (149 parties)

Ambassadeurs : Tarazi, Andre (2x), Manuel A. Mateus (2x), Holmsgaard, Henrik (2x), Karastoichev, Emil (1x), Bobekov, Radko (1x), Marszalek, Rafal (1x), Sucevic, Milos (1x), Light, Bjarne (1x)

6…e5 — 1.5% (90 parties)

Ambassadeurs : Da Silva Filho, Alcindo Luz Bastos (6x), Mihevc-Mohr, Narcisa (2x), Grego, Luis Gonzaga (2x), Borloy, Karoly (1x), Petri, Tibor (1x), Gligoric, Svetozar (1x), Nedeljkovic, Srecko M (1x), Unzicker, Ferdinand, Dr. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…a6	6…e6	6…g6	6…e5
<1800	210	76%	9%	10%	3%
1800-2200	1702	84%	6%	5%	3%
2200-2600	3608	97%	1%	1%	1%
2600+	313	98%	1%	1%	—

Évolution par décennie (% des parties)

Décennie	N parties	6…a6	6…e6	6…g6	6…e5
1950s	11	55%	9%	9%	27%
1960s	12	67%	17%	8%	—
1970s	85	86%	5%	2%	4%
1980s	187	88%	4%	4%	1%
1990s	717	86%	7%	3%	2%
2000s	1747	91%	4%	3%	1%
2010s	2504	93%	2%	2%	1%
2020s	890	94%	2%	2%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…a6	93%	94%	▲ +1.1%
6…e6	2%	2%	▼ -0.7%
6…g6	2%	2%	-0.0%
6…e5	1%	1%	-0.3%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 8 parties
Tal, Mikhail — 6 parties
Ju, Wenjun — 6 parties
Gukesh D — 6 parties
Kasparov, Garry — 3 parties
Kramnik, Vladimir — 2 parties
Hou, Yifan — 2 parties
Carlsen, Magnus — 1 partie

Parties historiques

6…a6 — 91.7% (5642 parties)

1951 — Trifunovic, Petar vs Nedeljkovic, Srecko M — 1/2-1/2 — Ljubljana
1951 — Abdi, Andreas vs Gligoric, Svetozar — 1/2-1/2 — Sarajevo BIH
1952 — Lokvenc, Josef vs Gligoric, Sofija — 1/2-1/2 — Helsinki olm
1955 — Dorawa, Bernhard vs Uhlmann, Wolfgang — 0-1 — Zwickau
1956 — Clarke, Peter vs Janosevic, Dragoljub — 0-1 — Bognor Regis

6…e6 — 3.1% (193 parties)

1952 — Boleslavsky, Isaac vs Ilivitsky, Georgy A — 1/2-1/2 — Moskou ch-URS
1964 — Gaprindashvili, Nona vs Idelchik, Liubov M — 1-0 — URS Spartakiad
1969 — Sydor, Andrzej vs Moehring, Guenther — 0-1 — Zinnowitz GER
1972 — Schweber, Samuel vs Carbone, Alexandre — 1-0 — Buenos Aires ARG
1975 — Zatulovskaya, Tatiana vs Semenova, Lidia K — 1-0 — Riga LAT

6…g6 — 2.4% (149 parties)

1959 — Marszalek, Rafal vs Sucevic, Milos — 1/2-1/2 — Warsaw POL
1965 — Karastoichev, Emil vs Bobekov, Radko — 1/2-1/2 — Varna BUL
1978 — Shamai, Ofer vs Sabi, Yoseph — 0-1 — Herzliya
1979 — Dobosz, Henryk vs Pedersen, Hans Buus — 1-0 — Esbjerg DEN
1982 — Light, Bjarne vs Schandorff, Lars — 0-1 — Soro

6…e5 — 1.5% (90 parties)

1951 — Gligoric, Svetozar vs Nedeljkovic, Srecko M — 1/2-1/2 — Ljubljana
1955 — Borloy, Karoly vs Petri, Tibor — 1-0 — Voros Lobogo
1955 — Unzicker, Ferdinand, Dr. vs Filip, Miroslav — 0-1 — Goteborg izt
1974 — Balshan, Amikam vs Angantysson, Haukur — 0-1 — Teesside ENG
1975 — Canibol, Peter vs Buchenthal, Dieter — 1/2-1/2 — Bad Meinberg

B51r — Sicilian: Moscow 3…Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3

♔ Point de vue Blancs

♚ Point de vue Noirs

1951 YUG Ch 6th – Round 2 – Gligoric, Svetozar – 1/2-1/2 – Nedeljkovic, Srecko M – G6

1952 Moskou ch-URS – Round 1 – Boleslavsky, Isaac – 1/2-1/2 – Ilivitsky, Georgy A – G93

1955 Gothenburg Interzonal – Round 12 – Unzicker, Wolfgang – 0-1 – Filip, Marius Liviu – G113

1964 SWE Ch – Round ? – Jansson, Borje – 1-0 – Andersson, Bengt 1968 – G29

1964 URS Spartakiad – Round ? – Gaprindashvili, Nona – 1-0 – Idelchik, Liubov M – G15

1969 DSV-Turnier – Round 8 – Sydor, Andrzej – 0-1 – Moehring, Guenther – G43

1975 URS Team Ch – Round 3 – Zatulovskaya, Tatiana – 1-0 – Semenova, Lidia K – G243

Amber-blindfold 12th 2003 – Round 9 – Ivanchuk, Vasyl – 0-1 – Topalov, Veselin – G26

World Blitz 2017 – Round 4.17 – Safarli, Elmir – 1-0 – Moiseenko, Alexander – G181

World Blitz 2019 – Round 11.60 – Zarnicki, Pablo – 0-1 – Andriasian, Zaven – G768

World Rapid Final 2012 – Round 11 – Topalov, Veselin – 1/2-1/2 – Gelfand, Boris – G85