A89f — Dutch: Leningrad, Main Line, 7.Nc3 Nc6 8.d5 Na5 9.Qd3

1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 Nc6 8.d5 Na5 9.Qd3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte f4, case forte b5, case forte d5, case forte g5, paire de fous.
Faiblesses adverses : arriéré e7, Bg7 enfermé, Bc8 enfermé.
Problèmes : Bc1 enfermé, Bg2 enfermé.
Plans :
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte g4, case forte f5, avant-poste g4(C), paire de fous.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Bg7 enfermé, Bc8 enfermé, arriéré e7.
Plans :
● ...Bg4 — Développer Bc8, clouer Nf3
● ...c6 — Rupture
● ...c5 — Rupture
● ...e6 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A89f — Leningrad Main Line

1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 Nc6 8.d5 Na5 9.Qd3

Eval: [+0.80]

Les coups candidats

9…c5 — 61.5% (516 parties)

Ambassadeurs : Reilly, Tim (5x), Mozes, Ervin (5x), Matulovic, Milan (4x), Joksic, Sinisa (4x), Johansson, Thomas 1957 (4x), Petro, Jozsef (4x), Golcman, Evgeny (4x), Formanek, Edward (3x)

9…e5 — 37.8% (317 parties)

Ambassadeurs : Bartel, Mateusz (6x), Knezevic, Milorad (5x), Fritsche, Frank (4x), Wozniak, Mariola (4x), Kun, Gabor (4x), Lastin, Alexander (3x), Hoang, Thanh Trang (3x), Stremavicius, Titas (3x)

9…b6 — 0.4% (3 parties)

Ambassadeurs : Carril Garcia, Luis (1x), Palacios Gonzalez, Juan Manuel (1x), Dunn, Andrew c (1x), Allis, Richard (1x), Albrecht, Manja (1x), Przybyl, Zbigniew (1x)

9…f4 — 0.1% (1 parties)

Ambassadeurs : Frisk, Ensio (1x), Sairanen, Pekka (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…c5	9…e5	9…b6	9…f4
<1800	10	40%	60%	—	—
1800-2200	267	54%	45%	0%	—
2200-2600	407	64%	36%	—	—
2600+	4	25%	75%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…c5	9…e5	9…b6	9…f4
1950s	3	100%	—	—	—
1960s	25	84%	16%	—	—
1970s	34	82%	18%	—	—
1980s	60	78%	20%	—	2%
1990s	216	75%	25%	—	—
2000s	228	59%	40%	0%	—
2010s	257	44%	55%	1%	—
2020s	16	50%	50%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…c5	44%	50%	▲ +6.0%
9…e5	55%	50%	▼ -4.9%
9…b6	1%	0%	▼ -0.8%
9…f4	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 1 partie
Botvinnik, Mikhail — 1 partie

Parties historiques

9…c5 — 61.5% (516 parties)

1957 — Bykov, Vladimir vs Tolush, Alexander V — 1-0 — Leningrad RUS
1959 — Espinosa Flores, Rafael Emilio vs Pelikán, Jiří — 1-0 — Buenos Aires ARG
1959 — Benko, Pal vs Tal, Mikhail — 0-1 — Bled/Zagreb/Belgrade
1960 — Roehrich, E vs Haag, Ervin — 0-1 — corr FS
1960 — Udovcic, Mijo vs Matulovic, Milan — 1/2-1/2 — Ljubljana

9…e5 — 37.8% (317 parties)

1961 — Pachman, Ludek vs Kozomara, Vlado — 1/2-1/2 — Sarajevo BIH
1963 — Alcaraz Suarez, Juan Camilo vs Andrade Herrera, Fernando Alfonso — 0-1 — Buenos Aires ch-ARG
1963 — Novak, Zbynek vs Acosta Fabian, Janna Paloma — 1/2-1/2 — Prague CZE
1967 — Schumacher, Helmut vs Franco Raymundo, Eduardo — 1/2-1/2 — Barcelona ESP
1971 — Mititelu, Gheorghe vs Stanciu, Traian — 1/2-1/2 — Bucharest ROU

9…b6 — 0.4% (3 parties)

2008 — Carril Garcia, Luis vs Palacios Gonzalez, Juan Manuel — 1-0 — Ourense ESP
2015 — Dunn, Andrew c vs Allis, Richard — 1-0 — Shrigley Hall ENG
2018 — Albrecht, Manja vs Przybyl, Zbigniew — 1-0 — ICCF

9…f4 — 0.1% (1 parties)

1981 — Frisk, Ensio vs Sairanen, Pekka — 1-0 — corr NS/II

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● e7
Chaînes	● f2→g3, h2→g3, c4→d5	● g6→f5, c7→d6, e7→d6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v0), ● f4 (2v0), ● b5 (2v0), ● d5 (3v1), ● g5 (2v0)	● g4 (2v0), ● f5 (2v1)
Cases faibles	● e4	—
Centre	● d4 (2v0), ● d5 (3v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 2)
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	● c4-c5, ● e2-e3	● …c7-c6, ● …c7-c5, ● …e7-e6, ● …e7-e5, ● …f5-f4

Partie
1957 Leningrad Ch – Round 7 – Bykov, Vladimir – 1-0 – Tolush, Alexander V – G54 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 8. d5 Na5 9. Qd3 c5 10. Bd2 a6
1959 Argentina – Round 5 – Espinosa Flores, Rafael Emilio – 1-0 – Pelikán, Jiří – G26 1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. Nf3 d6 7. O-O Nc6 8. d5 Na5 9. Qd3 c5 10. Rb1 a6
1959 Candidats Tournament – Round 7 – Benko, Pal – 0-1 – Tal, Mikhail – G25 1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. c4 Bg7 5. Nc3 O-O 6. O-O d6 7. d4 Nc6 8. d5 Na5 9. Qd3 c5 10. Ng5 a6
1960 Corr FS – Round 1 – Roehrich, E – 0-1 – Haag, Ervin – G1 1. c4 f5 2. Nf3 Nf6 3. g3 d6 4. d4 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 Nc6 8. d5 Na5 9. Qd3 c5 10. Bg5 a6
1960 Ljubljana – Round 9 – Udovcic, Mijo – 1/2-1/2 – Matulovic, Milan – G67 1. c4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Nc3 d6 7. d4 Nc6 8. d5 Na5 9. Qd3 c5 10. b3 Ne4
1961 Buenos Aires Villa – Round 1 – Cruz, Raul C. – 1-0 – Kampelmacher – G4 1. d4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 8. d5 Na5 9. Qd3 c5 10. b3 b5
1961 Nykobing – Round 8 – Blom, Kaj – 1/2-1/2 – Hamann, Svend – G40 1. Nf3 f5 2. d4 g6 3. g3 Nf6 4. Bg2 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 8. d5 Na5 9. Qd3 c5 10. dxc6 Nxc6
1961 Sarajevo – Round 10 – Pachman, Ludek – 1/2-1/2 – Kozomara, Vlado – G45 1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. Nf3 d6 7. O-O Nc6 8. d5 Na5 9. Qd3 e5 10. e4 fxe4
1963 CSR Ch – Round 17 – Novak, Zbynek – 1/2-1/2 – Acosta Fabian, Janna Paloma – G152 1. d4 g6 2. g3 Bg7 3. Bg2 f5 4. Nf3 Nf6 5. c4 O-O 6. Nc3 d6 7. O-O Nc6 8. d5 Na5 9. Qd3 e5 10. dxe6 Bxe6
1966 La Habana olm fin-A – Round 6 – Pachman, Ludek – 1-0 – Johannessen, Svein – G99 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. Nf3 O-O 7. O-O Nc6 8. d5 Na5 9. Qd3 c5 10. b3 a6
1968 WchT U26 – Round 1 – Zara, Dan – 1/2-1/2 – Angantysson, Haukur – G11 1. d4 g6 2. Nf3 Bg7 3. c4 f5 4. g3 Nf6 5. Bg2 O-O 6. O-O d6 7. Nc3 Nc6 8. d5 Na5 9. Qd3 c5 10. b3 a6
1969 It Bad Pyrmont GER – Round 13 – Segal, Alexandru Sorin – 1/2-1/2 – Vogel, Jaap – G22 1. d4 d6 2. c4 f5 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 Nc6 8. d5 Na5 9. Qd3 c5 10. dxc6 Nxc6
1969 Yugoslavia – Round 1 – Nikolac, Juraj – 1-0 – Bertok, Mario Jr. – G5 1. d4 f5 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O d6 7. Nc3 Nc6 8. d5 Na5 9. Qd3 c5 10. b3 a6

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