B51s — Sicilian: Moscow 3…Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bc2 (76 % des parties) ; d4 (Occuper le centre — 13 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...b5 (Expansion aile dame — 69 % des parties) ; ...c4 (Frapper le centre adverse — 21 % des parties) ; ...e5 (Occuper le centre — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, d2→c3	● d6→c5, b7→a6, 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)
Ba4	● Ba4 Actif (mob. 4)
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

Partie
1948 Moskou ch-URS – Round 12 – Kholmov, Ratmir D – 1-0 – Ragozin, Viacheslav – G107 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 b5 8. Bc2 e5 9. h3 Qc7 10. d3 Be7
1950 URS Ch sf – Round 8 – Sokolsky, Alexey – 1-0 – Geller, Efim P – G15 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 e5 8. d4 b5 9. dxe5 dxe5 10. Bc2 Be7
1951 YUG Ch 6th – Round 6 – Trifunovic, Petar – 1/2-1/2 – Nedeljkovic, Srecko M – G32 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Ba4 e5 8. d4 Qc7 9. dxc5 dxc5 10. Bg5 Be7
1951 YUG Ch 7th – Round 13 – Andric, Dragoslav – 1/2-1/2 – Gligoric, Svetozar – G107 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Ba4 b5 8. Bc2 e5 9. d4 cxd4 10. cxd4 Bg4
1952 Helsinki olm – Round 1 – Lokvenc, Josef – 0-1 – Staahlberg, Gideon – G123 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 e6 8. d3 Be7 9. Nbd2 O-O 10. Nf1 Ne5
1952 Helsinki olm – Round 1 – Lokvenc, Josef – 1/2-1/2 – Gligorić, Svetozar – G109 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Ba4 b5 8. Bc2 e5 9. d3 Be7 10. Nbd2 O-O
1955 DDR Ch 06th – Round 5 – Dorawa, Bernhard – 0-1 – Uhlmann, Wolfgang – G24 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Ba4 b5 8. Bc2 e5 9. d4 Qc7 10. d5 Nd8
1955 URS Team Ch fin – Round 7 – Shishov, Mikhail – 0-1 – Averbakh, Yuri L – G27 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 b5 8. Bc2 e5 9. h3 Be7 10. d3 O-O
1957 Minsk zt – Round 14 – Zvorykina, Kira Alekseyevna – 0-1 – Zilber, Israel – G96 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 e6 8. d4 b5 9. Bc2 e5 10. dxe5 dxe5
1959 Zuerich – Round 1 – Keller, Dieter – 1-0 – Walther, Edgar – G19 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 b5 8. Bb3 e5 9. d3 Be7 10. Nbd2 O-O
1968 Sarajevo – Round 7 – Krogius, Nikolai V – 1-0 – Janosevic, Dragoljub – G50 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 e5 8. d4 b5 9. dxe5 dxe5 10. Bc2 Be7
FIDE World Cup 2025 – Round R1 Classical 2 – Elbilia Jacques – 1/2-1/2 – Maksim Chigaev – G91 1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. a3 Bxc5 6. Qg4 Ne7 7. Nf3 Nf5 8. Bd3 h5 9. Qh3 Nc6 10. Bxf5 exf5
FIDE-Wch k.o. 1999 – Round 7.3 – Akopian, Vladimir – 1-0 – Khalifman, Alexander – G126 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Ba4 c4 8. d4 cxd3 9. Bg5 Ne5 10. Nbd2 Bxa4
FIDE-Wch k.o. g/25+10 1999 – Round 2.3 – Ponomariov, Ruslan – 1/2-1/2 – Topalov, Veselin – G12 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 b5 8. Bc2 Bg4 9. h3 Bxf3 10. Qxf3 g6
Pearl Spring 2008 – Round 6 – Svidler, Peter – 1/2-1/2 – Ivanchuk, Vasyl – G16 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Ba4 c4 8. Bc2 Ng4 9. b3 b5 10. bxc4 bxc4
Rio de Janeiro Interzonal 1979 – Round 9 – Bronstein, Luis Marcos – 1/2-1/2 – Timman, Jan H – G28 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Re1 Nf6 6. c3 a6 7. Ba4 c4 8. d4 cxd3 9. Bg5 e6 10. Qxd3 Ne5
TCh-RUS 2008 – Round 4 – Ovetchkin, Roman – 1/2-1/2 – Dreev, Aleksey – G109 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Re1 Nf6 6. c3 a6 7. Ba4 e5 8. h3 c4 9. Bc2 Be7 10. b3 cxb3
World Blitz 2015 – Round 17.52 – Pavlidis, Antonios – 0-1 – Moiseenko, Alexander – G1076 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. Re1 Nf6 6. c3 a6 7. Ba4 b5 8. Bc2 Bg4 9. h3 Bxf3 10. Qxf3 g6
World Blitz 2023 – Round 13.25 – Gukesh D – 1-0 – Adhiban, B. – G745 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 b5 8. Bb3 Bg4 9. h3 Bxf3 10. Qxf3 g6

B51s — Moscow 3…Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4 (1948)

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4

Les coups candidats

7…b5 — 68.9% (1055 parties)

Ambassadeurs : Tiviakov, Sergei (18x), Ni, Hua (9x), Zhang, Zhong (8x), Svetushkin, Dmitry (7x), Xu, Yuhua (7x), Dolzhykova, Kateryna (7x), Timofeev, Artyom (7x), Moiseenko, Alexander (7x)

7…c4 — 21.4% (328 parties)

Ambassadeurs : ? (6x), Grivas, Efstratios (5x), Olafsson, Helgi (4x), Leino, Jukka (4x), Vujosevic, Vladimir (4x), Berebora, Ferenc (4x), Khalifman, Alexander (4x), Brkic, Ante (4x)

7…e5 — 6.2% (95 parties)

Ambassadeurs : Janosevic, Dragoljub (3x), Movsesian, Sergei (2x), Nikolaidis, Ioannis NA (2x), Sokolsky, Alexey (1x), Geller, Efim P. (1x), Urbanec, Miroslav (1x), Schlieder, Rolf (1x), Trifunovic, Petar (1x)

7…e6 — 1.6% (25 parties)

Ambassadeurs : Zvorykina, Kira Alekseyevna (1x), Zilber, Israel (1x), Lokvenc, Josef (1x), Staahlberg, Gideon (1x), Neukirch, Detlef (1x), Moehring, Guenther (1x), Aadhitha Karikalan (1x), Markovic, Miroslav (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…b5	7…c4	7…e5	7…e6
<1800	45	78%	4%	11%	4%
1800-2200	370	74%	15%	5%	3%
2200-2600	899	67%	25%	5%	1%
2600+	94	76%	18%	5%	—

Évolution par décennie (% des parties)

Décennie	N parties	7…b5	7…c4	7…e5	7…e6
1950s	11	45%	—	36%	18%
1960s	6	50%	—	50%	—
1970s	32	53%	25%	16%	3%
1980s	66	50%	38%	11%	2%
1990s	226	49%	40%	6%	2%
2000s	522	68%	24%	5%	1%
2010s	565	80%	12%	5%	1%
2020s	103	80%	8%	9%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…b5	80%	80%	-0.2%
7…c4	12%	8%	▼ -4.6%
7…e5	5%	9%	▲ +3.8%
7…e6	1%	3%	▲ +1.9%

Joueurs célèbres

Champions du monde dans cette position

Gukesh D — 2 parties
Tal, Mikhail — 1 partie

Parties historiques

7…b5 — 68.9% (1055 parties)

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 — Shishov, Mikhail vs Averbakh, Yuri L — 0-1 — Voroshilovgrad
1955 — Dorawa, Bernhard vs Uhlmann, Wolfgang — 0-1 — Zwickau
1959 — Keller, Dieter vs Walther, Edgar — 1-0 — Zurich SUI

7…c4 — 21.4% (328 parties)

1970 — Suetin, Alexey S vs Balashov, Yuri — 0-1 — Moscow RUS
1970 — Suetin, Alexey S vs Balashov, Yuri — 0-1 — USSR
1972 — Ivanov, Alexander vs Alexander G — 1/2-1/2 — Moscow RUS
1973 — Benko, Pal vs Miles, Anthony J — 1/2-1/2 — Hastings ENG
1977 — Bueno Perez, Lazaro Antonio vs Adamski, Jan — 1-0 — Leipzig GER

7…e5 — 6.2% (95 parties)

1950 — Sokolsky, Alexey vs Geller, Efim P. — 1-0 — Kiev UKR
1951 — Trifunovic, Petar vs Nedeljkovic, Srecko M — 1/2-1/2 — Ljubljana
1956 — Clarke, Peter vs Janosevic, Dragoljub — 0-1 — Bognor Regis
1956 — Clarke, Stuart vs Janosevic, Dragoljub — 0-1 — Bognor Regis ENG
1967 — Simagin, Vladimir vs Balashov, Yuri — 1-0 — Moskou Jubileum

7…e6 — 1.6% (25 parties)

1952 — Lokvenc, Josef vs Staahlberg, Gideon — 0-1 — Helsinki FIN
1957 — Zvorykina, Kira Alekseyevna vs Zilber, Israel — 0-1 — Minsk zt
1971 — Neukirch, Detlef vs Moehring, Guenther — 1/2-1/2 — Strasbourg ch20-DDR
1983 — Aadhitha Karikalan vs Markovic, Miroslav — 1-0 — Bela Crkva open
1991 — Oka, M. vs Ferido, D. — 1-0 — Los Angeles, CA USA

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