B59j — Sicilian: Boleslavsky, 7.Nb3 Be7 8.O-O O-O 9.f4

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.f4 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plan principal. Exploiter la case forte d5.

Atouts. Les Blancs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), les cases fortes b5 et d5, un avant-poste en d5, un fou actif en e2, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Le pion arriéré d6 et les fous enfermés en e7 et c8.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plan principal. Exploiter la case forte g4.

Atouts. Les Noirs s'appuient sur une majorité de pions à l'centre (2 contre 1), la case forte g4, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Le fou enfermé en c1.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8) et le pion arriéré d6.

Plans. ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● d6
Chaînes	—	● d6→e5
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (3v1)	● g4 (2v1)
Cases faibles	● d4	—
Centre	● d5 (3v1)	● e5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Be2	● Be2 Actif (mob. 7)
Be7		● Be7 Enfermé (mob. 0)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● f4-f5	● …d6-d5

Partie
1947 Warsaw – Round 5 – Gruenfeld, Ernst – 0-1 – Boleslavsky, Isaac – G28 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
1949 CSR-NED Prague CZE – Round 1 – Cortlever, Nico – 0-1 – Kottnauer, Cenek – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
1949 Schlechter Memorial – Round ? – Fletzer, Gino – 0-1 – Lokvenc, Josef – G54 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1950 Budapest – Round 1 – Balogh, Janos – 1/2-1/2 – Szily, Jozsef – G9 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. f5 a4
1950 FRG Ch Bad Pyrmont GER – Round 5 – Staudte, Hans-Hilmar – 0-1 – Unzicker, Ferdinand, Dr. – G13 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
1950 URS Ch sf – Round 4 – Khasin, Abram – 1/2-1/2 – Kopilov, Nikolay Georgiyevich – G4 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1950 YUG-USA m radio – Round 2.10 – Bisguier, Arthur B – 1/2-1/2 – Ivkov, Borislav – G10 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1951 Hoogovens – Round 1 – Poulsen, Christian – 1-0 – Stumpers, Louis – G3 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Be6
1951 URS Ch sf – Round 4 – Lisitsin, Georgy – 0-1 – Kopilov, Nikolay Georgiyevich – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1952 URS ch sf – Round 8 – Ravinsky, Grigory – 1/2-1/2 – Fridstein, German – G51 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
1953 Wch U20 qual-B – Round 1 – Penrose, Jonathan – 1-0 – Heikkila, Heikki – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
1954 Hungary Ch – Round 1 – Szily, Jozsef – 0-1 – Benko, Pal – G35 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1954 Kiev ch-URS – Round 1 – Ragozin, Viacheslav – 0-1 – Livshin, Iosif – G113 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1954 New York – Round 4 – Horowitz, Albert Israel – 0-1 – Geller, Efim P – G17 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
1955 Gothenburg Interzonal – Round 5 – Acuna Medina, Angel G. – 1/2-1/2 – Unzicker, Wolfgang – G48 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1955 Hastings5556 – Round 5 – Fuller, Jack – 0-1 – Diez del Corral, Jesus – G23 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a6 10. a4 Be6
1955 Hastings5556 – Round 7 – Fuller, Jack – 0-1 – Olafsson, Fridrik – G32 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 exf4
1955 URS Ch sf – Round ? – Liuboshits, A. – 0-1 – Boleslavsky, Isaac – G10 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1956 Harmonie CC Open – Round 9 – Anderson, Frank Ross – 1-0 – Stadt, Hans – G9 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 e5 6. Nb3 Nf6 7. Be2 Be7 8. O-O O-O 9. f4 a6 10. a4 Bd7
1956 Marianske Lazne/Praha – Round 17 – Ragozin, Viacheslav – 1/2-1/2 – Rejfir, Josef – G49 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1956 Moscow olm prel – Round 5 – Alvarez Flores, Aurelio Alan – 1-0 – Olafsson, Fridrik – G154 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1956 URS Ch sf – Round ? – Ragozin, Viacheslav – 0-1 – Osnos, Viatcheslav – G80 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1957 Moskou ch-URS – Round 1 – Aronin, Lev – 0-1 – Klaman, Konstantin Mikhailovich – G13 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Kh1 a4
1958 HUN Ch Budapest HUN – Round 1 – Pogats, Jozsef Jr. – 1/2-1/2 – Lengyel, Levente – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
1959 Argentina – Round 8 – Caterine Visconti, Ismael David – 0-1 – Marini, Luis – G42 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. Be3 a4
1959 Quilmes – Round 6 – Puiggros, Guillermo – 1/2-1/2 – Schweber, Samuel – G46 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
1961 Moscow Ch – Round ? – Muchnik, Khanan Lvovich – 0-1 – Shamkovich, Leonid – G85 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 b5 10. Nd5 Bb7
1975 URS Team Ch – Round 5 – Valiyev, Nerik – 0-1 – Lukin, Andrei M – G341 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4
TCh-RUS 2008 – Round 1 – Ponkratov, Pavel – 0-1 – Najer, Evgeniy – G23 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4

B59j — Boleslavsky

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.f4

Eval: [+0.00]

Les coups candidats

9…a5 — 75.9% (602 parties)

Ambassadeurs : Schneider, Lars-Ake (4x), Ubilava, Elizbar (4x), Boleslavsky, Isaac (3x), Ragozin, Viacheslav (3x), Kasparov, Garry (3x), Wagner-Michel, Annett (3x), Bellin, Robert (3x), Nogrady, Vilmos (3x)

9…exf4 — 13.9% (110 parties)

Ambassadeurs : Boleslavsky, Isaac (3x), Botvinnik, Mikhail (2x), Feher, Gyula (2x), Philipowski, Robert (2x), Galazewski, Tomasz (2x), Janosevic, Dragoljub (1x), Gligorić, Svetozar (1x), Estrin, Yakov (1x)

9…a6 — 4.7% (37 parties)

Ambassadeurs : Anderson, Frank Ross (1x), Stadt, Hans (1x), Fuller, Jack (1x), Diez del Corral, Jesus (1x), Jahnichen E (1x), Kropp, Volker (1x), Polgar, Istvan (1x), Cobo Arteaga, Eldis (1x)

9…Qb6+ — 2.4% (19 parties)

Ambassadeurs : Suhobeck, Alex H (1x), Burger, Karl (1x), Hlavac, Rudolf (1x), Paukert, Martin (1x), Wuts, Frank (1x), Harwar, Julie A (1x), Wijnhoven, Theo (1x), Eckert, Frank (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…a5	9…exf4	9…a6	9…Qb6+
<1800	12	67%	17%	—	8%
1800-2200	241	72%	15%	7%	2%
2200-2600	360	81%	14%	3%	1%
2600+	3	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…a5	9…exf4	9…a6	9…Qb6+
1940s	9	33%	67%	—	—
1950s	39	90%	—	5%	3%
1960s	6	67%	17%	—	—
1970s	40	85%	5%	5%	2%
1980s	74	84%	14%	3%	—
1990s	195	73%	16%	4%	3%
2000s	242	76%	15%	4%	2%
2010s	161	71%	14%	8%	3%
2020s	27	89%	—	4%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…a5	71%	89%	▲ +18.1%
9…exf4	14%	0%	▼ -13.7%
9…a6	8%	4%	▼ -4.4%
9…Qb6+	3%	0%	▼ -3.1%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 3 parties
Botvinnik, Mikhail — 2 parties
Tal, Mikhail — 2 parties

Parties historiques

9…a5 — 75.9% (602 parties)

1947 — Gruenfeld, Ernst vs Boleslavsky, Isaac — 0-1 — Warsaw POL
1949 — Fletzer, Gino vs Lokvenc, Josef — 0-1 — Vienna AUT
1949 — Cortlever, Nico vs Kottnauer, Cenek — 0-1 — CSR-NED Prague CZE
1950 — Balogh, Janos vs Szily, Jozsef — 1/2-1/2 — Budapest HUN
1950 — Bisguier, Arthur B vs Ivkov, Borislav — 1/2-1/2 — Radio

9…exf4 — 13.9% (110 parties)

1943 — Botvinnik, Mikhail vs Boleslavsky, Isaac — 1-0 — Sverdlovsk
1943 — Botvinnik, Mikhail vs Boleslavsky, Isaac — 1-0 — Sverdlovsk
1946 — Estrin, Yakov vs Boleslavsky, Isaac — 0-1 — Sverdlovsk
1947 — Pomar Salamanca, Arturo vs Kramer, Haije — 0-1 — Baarn NED
1948 — Janosevic, Dragoljub vs Gligorić, Svetozar — 0-1 — Belgrade ch-YUG

9…a6 — 4.7% (37 parties)

1955 — Fuller, Jack vs Diez del Corral, Jesus — 0-1 — Hastings ENG
1956 — Anderson, Frank Ross vs Stadt, Hans — 1-0 — Toronto CAN
1971 — Polgar, Istvan vs Cobo Arteaga, Eldis — 1/2-1/2 — Baja
1979 — Ozaki, Yukitaka vs Saeed, Saeed-Ahmed — 0-1 — Singapore SIN
1987 — Jahnichen E vs Kropp, Volker — 0-1 — Mainz

9…Qb6+ — 2.4% (19 parties)

1955 — Suhobeck, Alex H vs Burger, Karl — 1/2-1/2 — Long Beach, CA USA
1978 — Hlavac, Rudolf vs Paukert, Martin — 1-0 — Bohutin (1
1990 — Wuts, Frank vs Harwar, Julie A — 1/2-1/2 — Sas van Gent NED
1993 — Kuehn, David vs Azimi, Reza — 1/2-1/2 — Cologne GER
1993 — Capilla Murphy, Serena vs Ahmed Nagy, Shady — 1-0 — Szombathely

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