A87g — Dutch: Leningrad, Main Line, 6.Nc3 d6

1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.Nc3 d6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. O-O (Mettre le roi en sécurité, connecter les tours — 92 % des parties) ; d5 (Occuper le centre — 4 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Qe8 (Pression sur colonne e — 37 % des parties) ; ...c6 (Renforcer le centre — 30 % des parties) ; ...Nc6 (Développer b8 — 24 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● b5 (2v0), ● d5 (2v1), ● g5 (2v0)	● e4 (2v1), ● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0), ● d5 (2v1), ● e5 (2v1)	● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Ok (mob. 2)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	3 (● c1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● c4-c5, ● e2-e4	● …c7-c5, ● …d6-d5, ● …e7-e5, ● …f5-f4

Partie
1950 Corr – Round 1 – Crowl Frank A – 0-1 – Ozols, Karlis – G11 1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. Nf3 d6 7. d5 Na6 8. Nd4 Nc5 9. O-O a5 10. f3 e5
1955 Johannesburg – Round 1 – Barata da Cruz, V – 0-1 – Heidenfeld, Wolfgang – G2 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 O-O 6. Nc3 d6 7. Bg5 c6 8. Qd2 Qb6 9. O-O Nbd7 10. Bh6 e5
1957 Manhattan CC Ch 5657 fin – Round 4 – Turner, Abe J – 1-0 – Myers, Hugh – G10 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nc3 O-O 6. Nf3 d6 7. d5 Nbd7 8. O-O Nc5 9. Be3 e5 10. dxe6 Nxe6
1958 Haifa/Tel Aviv – Round 12 – Dunkelblum, Arthur – 1/2-1/2 – Szabo, Laszlo – G71 1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. c4 Bg7 5. Nc3 O-O 6. d4 d6 7. d5 c5 8. O-O Na6 9. Rb1 Nc7 10. b3 a6
1958 HUN Ch Budapest HUN – Round 16 – Honfi, Karoly – 1/2-1/2 – Haag, Ervin – G83 1. Nf3 f5 2. d4 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 d6 6. Nc3 O-O 7. b3 e6 8. Bb2 Ne4 9. Qc2 Nxc3 10. Bxc3 Nd7
1959 Buenos Aires – Round 1 – Reinhardt, Enrique – 1/2-1/2 – Pelikán, Jiří – G7 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. Nf3 O-O 7. Bf4 Qe8 8. Qd2 c6 9. O-O Nbd7 10. d5 Nb6
1960 Aalborg – Round 6 – Jensen, Erik Bartram – 0-1 – Hamann, Svend – G40 1. c4 f5 2. Nf3 Nf6 3. g3 d6 4. d4 g6 5. Bg2 Bg7 6. Nc3 O-O 7. Bf4 Nc6 8. h4 Ng4 9. Qd2 e5 10. Bg5 Qe8

A87g — Leningrad, Main Line (1950)

1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.Nc3 d6

Les coups candidats

7.O-O — 92.3% (10793 parties) →

Ambassadeurs : Malaniuk, Vladimir P (49x), Sherwood, Russell (32x), Welz, Peter, Dr. (28x), Bakheet Farag (26x), Roeder, Matthias (21x), Krizsany, Laszlo (20x), Lukacs, Peter (19x), Rendle, Thomas E (14x)

7.d5 — 4.2% (488 parties)

Ambassadeurs : Hausner, Ivan (11x), Gheorghiu, Florin (10x), Meduna, Eduard (10x), Uhlmann, Wolfgang (7x), Clares Huanca, Danner Saed (4x), Barber, Haydn J (3x), Keskinen, Sauli (3x), Schuelke, Tilman (3x)

7.Qc2 — 0.8% (90 parties)

Ambassadeurs : Valkyser, Martin (1x), Berg, Daniel 1991 (1x), Kotlar, Alfred (1x), Keller, Manfred (1x), Fekete, Albert (1x), Petro, Basil (1x), Wehrmann, Olaf (1x), Groenegress, Wilfried (1x)

7.Qb3 — 0.6% (73 parties)

Ambassadeurs : Giacomini, Massimo (2x), Roos, Michel (1x), Timmerman, Gert (1x), Panek, Dietmar (1x), Horata, Hakan (1x), Muranyi, Jozsef (1x), Eberth, Zoltan Bela (1x), Felix, Huggins (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.O-O	7.d5	7.Qc2	7.Qb3
<1800	636	92%	2%	2%	1%
1800-2200	5552	92%	3%	1%	1%
2200-2600	4046	93%	6%	0%	0%
2600+	84	98%	2%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.O-O	7.d5	7.Qc2	7.Qb3
1950s	45	82%	11%	—	—
1960s	99	91%	8%	—	—
1970s	236	93%	5%	1%	—
1980s	488	86%	11%	1%	1%
1990s	2392	90%	7%	1%	1%
2000s	3635	92%	4%	1%	1%
2010s	3929	94%	2%	1%	1%
2020s	873	93%	3%	1%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.O-O	94%	93%	▼ -1.1%
7.d5	2%	3%	▲ +1.0%
7.Qc2	1%	1%	+0.4%
7.Qb3	1%	1%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 4 parties
Kramnik, Vladimir — 3 parties
Carlsen, Magnus — 2 parties
Tal, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Ju, Wenjun — 1 partie
Gukesh D — 1 partie

Parties historiques

7.O-O — 92.3% (10793 parties)

1951 — Tsvetkov, Alexandar K vs Stoltz, Gösta — 0-1 — Marianske Lazne Prah
1952 — Filipov, Filip vs Filchev, Rusko — 1-0 — Sofia BUL
1952 — Keres, Paul vs Korchnoi, Viktor — 1-0 — Moskou ch-URS
1953 — Tartakower, Savielly vs Alexander Ronald Cheng — 1/2-1/2 — Hastings ENG
1953 — Ciejka, Tadeusz vs Kwilecki, Andrzej — 1-0 — Krakow POL

7.d5 — 4.2% (488 parties)

1950 — Crowl Frank A vs Ozols, Karlis — 0-1 — ?
1955 — Larsen, Bent vs Nyman, Sture V — 1-0 — Stockholm SWE
1956 — Palmason, Gudmundur vs Liebert, Heinz — 1/2-1/2 — Uppsala
1957 — Turner, Abe J vs Myers, Hugh — 1-0 — New York, NY USA
1958 — Dunkelblum, Arthur vs Szabo, Laszlo — 1/2-1/2 — Haifa/Tel Aviv

7.Qc2 — 0.8% (90 parties)

1972 — Kotlar, Alfred vs Keller, Manfred — 1/2-1/2 — corr FRG jub
1975 — Norby, Peter H. vs Poulsen, Allan — 1/2-1/2 — Copenhagen DEN
1978 — Wehrmann, Olaf vs Groenegress, Wilfried — 1-0 — Borgholzhausen
1981 — Schulenburg, Bernd vs Joksic, Dragan — 0-1 — Biel SUI
1987 — Valkyser, Martin vs Berg, Daniel 1991 — 1-0 — GER

7.Qb3 — 0.6% (73 parties)

1981 — Panek, Dietmar vs Horata, Hakan — 0-1 — Waldshut
1985 — Muranyi, Jozsef vs Eberth, Zoltan Bela — 0-1 — Mezokovesd
1987 — Roos, Michel vs Timmerman, Gert — 1-0 — Dinard
1991 — Trickov, Vasil vs Clares Huanca, Danner Saed — 1-0 — Prague CZE
1992 — Wisckol, R. vs Garrison, R Raymond — 1-0 — E Lansing ch-MI amateur