D78m — Neo-Gruenfeld, 6.O-O c6 7.Nbd2 Ne4

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.Nbd2 Ne4 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte e5.

Atouts. Les Blancs s'appuient sur la case forte e5 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

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

Plans. h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte f5.

Atouts. Les Noirs s'appuient sur la case forte f5, un fou actif en g7 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...Nbd7 (Développer Nb8) ; ...Bg4 (Développer Bc8, clouer Nf3) ; ...c5 (Rupture) ; ...e6 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● c6→d5, b7→c6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1)	● f5 (2v0)
Cases faibles	—	—
Centre	● e5 (2v1)	● d5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Enfermé (mob. 2)
Bg7		● Bg7 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5	● …c6-c5, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5

Partie
1942 Sverdlovsk – Round 3 – Ragozin, Viacheslav – 1-0 – Petrov, Vladimir S. – G17 1. c4 c6 2. Nf3 d5 3. g3 g6 4. Bg2 Bg7 5. d4 Nf6 6. O-O O-O 7. Nbd2 Ne4 8. b3 Bf5 9. Bb2 Nd7 10. Nh4 Nxd2
1946 Pittsburgh Open – Round 1 – Steiner, Herman – 1-0 – Evans, Larry M – G45 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. O-O O-O 6. c4 c6 7. Nbd2 Ne4 8. Qb3 Nxd2 9. Bxd2 dxc4 10. Qxc4 Be6
1947 Aalborg – Round 3 – Stoltz, Gösta – 0-1 – Poulsen, Christian – G14 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. Nf3 O-O 6. O-O c6 7. Nbd2 Ne4 8. cxd5 cxd5 9. Ne5 Nd7 10. Nxd7 Qxd7
1949 YUG Ch – Round 14 – Germek, Milan – 1/2-1/2 – Bozic, Aleksandar – G13 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. Nbd2 Ne4 8. e3 Nxd2 9. Nxd2 e6 10. b3 Nd7
1949 YUG-NED – Round 1.4 – Rabar, Braslav – 0-1 – Cortlever, Nico – G4 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nf3 Bg7 6. O-O O-O 7. Nbd2 Ne4 8. cxd5 cxd5 9. Ne5 Nd7 10. Nxd7 Qxd7
1952 Budapest – Round 12 – Keres, Paul Petrovich – 1/2-1/2 – Benko, Pal – G108 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. Nbd2 Ne4 8. e3 Nxd2 9. Nxd2 dxc4 10. Nxc4 Be6
1952 Helsinki olm – Round 1 – Abad Gonzalez, Jose Miguel – 1/2-1/2 – Sajtar, Jaroslav – G109 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nf3 Bg7 6. O-O O-O 7. Nbd2 Ne4 8. e3 Bf5 9. Qb3 Qb6 10. Qxb6 axb6
1953 Bucharest – Round 13 – Golombek, Harry – 0-1 – O'Kelly, Albéric de Galway – G123 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. O-O O-O 6. c4 c6 7. Nbd2 Ne4 8. Qb3 Qb6 9. Qxb6 axb6 10. cxd5 cxd5
1954 CSR Ch – Round 10.4 – Zita, Frantisek – 0-1 – Weiner, Milan – G87 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c6 6. d4 d5 7. Nbd2 Ne4 8. b3 Nxd2 9. Qxd2 Bf5 10. Bb2 Be4
1954 Prague zt – Round 14 – Olafsson, Fridrik – 1/2-1/2 – Sajtar, Jaroslav – G76 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nd2 Bg7 6. Ngf3 O-O 7. O-O Ne4 8. Qb3 Qb6 9. cxd5 Qxb3 10. axb3 cxd5
1955 Mar del Plata – Round 12 – Szabo, Ladislav – 1/2-1/2 – Toran Albero, Roman – G83 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 c6 6. O-O d5 7. Nbd2 Ne4 8. Qb3 Qb6 9. cxd5 Qxb3 10. Nxb3 cxd5
1961 Zagreb – Round 1 – Udovcic, Mijo – 1/2-1/2 – Stupica, Janez – G30 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c6 6. d4 d5 7. Nbd2 Ne4 8. cxd5 cxd5 9. Ne5 Nd7 10. Nxe4 dxe4
1962 Asztalos Memorial 5th – Round 3 – Lengyel, Levente – 1-0 – Paoli, Enrico – G23 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d5 5. O-O O-O 6. c4 c6 7. Nbd2 Ne4 8. e3 f5 9. b3 Nd7 10. Bb2 e6
1962 Erevan ch-URS – Round 1 – Stein, Leon Rico – 1-0 – Krogius, Nikolai V – G153 1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. g3 c6 5. Bg2 d5 6. O-O O-O 7. Nbd2 Ne4 8. Qb3 Qb6 9. e3 Nd7 10. cxd5 Qxb3
1963 HUN-RSFSR – Round 1.3 – Bilek, Istvan – 1/2-1/2 – Krogius, Nikolai V – G4 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 c6 7. Nbd2 Ne4 8. b3 Bf5 9. Bb2 Nd7 10. Nh4 Nxd2
1964 Hoogovens-B – Round 11 – Flesch, Jean-benoit – 1/2-1/2 – Kramer, Hanspeter – G41 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 c6 7. Nbd2 Ne4 8. cxd5 cxd5 9. Ne5 Nxd2 10. Bxd2 Be6
1964 Magdeburg ch DDR – Round 10 – Maedler, Juergen, Dr. – 1/2-1/2 – Malich, Burkhard, Dr. – G21 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 c6 7. Nbd2 Ne4 8. cxd5 cxd5 9. Ne5 Nd7 10. Nxd7 Qxd7
1964 Pecs – Round 9 – Malich, Burkhard, Dr. – 1-0 – Czerniak, Moshe – G54 1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nbd2 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O Ne4 8. cxd5 cxd5 9. Ne5 f6 10. Nd3 f5
1965 HUN-ch21 – Round 1 – Bilek, Istvan – 1/2-1/2 – Haag, Ervin – G71 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 c6 7. Nbd2 Ne4 8. Qb3 Nxd2 9. Bxd2 e6 10. Qc2 Nd7
1965 Hungary – Round 1 – Bilek, Istvan – 1/2-1/2 – Kluger, Gyula – G114 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 c6 7. Nbd2 Ne4 8. Qb3 dxc4 9. Qxc4 Bf5 10. Qb3 Nxd2
1965 Hungary – Round 1 – Bilek, Istvan – 1/2-1/2 – Pogats, Jozsef Jr. – G109 1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nbd2 Ne4 8. Qb3 e6 9. Ne5 f6 10. Nd3 f5
1965 Hungary – Round 1 – Filep, Tibor – 1/2-1/2 – Liptay, Laszlo Dr. – G43 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Nf3 d5 5. Nbd2 Bg7 6. Bg2 O-O 7. O-O Ne4 8. e3 Nxd2 9. Nxd2 dxc4 10. Nxc4 Be6
1965 WchT U26 12. fin-A – Round 6 – Sloth, Jorn – 1/2-1/2 – Anoshin, Gennadi N – G38 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 c6 7. Nbd2 Ne4 8. e3 Nxd2 9. Nxd2 e6 10. Rb1 a5
1966 CSR Ch Int 1st – Round 17 – Bilek, Istvan – 1/2-1/2 – Filip, Miroslav – G103 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O Nf6 5. d4 O-O 6. c4 c6 7. Nbd2 Ne4 8. Qb3 Qb6 9. cxd5 Qxb3 10. axb3 Nxd2
1966 Den Haag zt – Round 3 – Garcia Aruca, Francisco Fernando – 1/2-1/2 – Donner, Jan-Hein – G25 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Nbd2 Ne4 8. cxd5 cxd5 9. Nb3 Nc6 10. Ng5 Bf5
1966 Den Haag zt – Round 6 – Bilek, Istvan – 1-0 – Donner, Jan-Hein – G36 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Nbd2 Ne4 8. Qb3 b6 9. cxd5 Qxd5 10. Nxe4 Qxe4
1967 Palma de Mallorca – Round 16 – Toran Albero, Roman – 1/2-1/2 – Tatai, Stefano – G115 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. Nbd2 Ne4 8. b3 Bf5 9. Bb2 Nxd2 10. Qxd2 Be4
1967 Venice – Round 1 – Lengyel, Laszlo – 1/2-1/2 – Donner, Jan-Hein – G1 1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. Nbd2 Ne4 8. b3 Bf5 9. Bb2 Nxd2 10. Qxd2 Be4
1967 Venice Venice ITA – Round 10 – Lengyel, Levente – 1/2-1/2 – Evans, Larry M – G31 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. Nbd2 O-O 7. O-O Ne4 8. Qb3 e6 9. Qc2 Nxd2 10. Bxd2 Nd7
1969 Capablanca Memorial – Round 2 – Panno, Oscar – 1/2-1/2 – Uhlmann, Wolfgang – G18 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 c6 5. Bg2 d5 6. Nbd2 O-O 7. O-O Ne4 8. Qb3 Nxd2 9. Bxd2 dxc4 10. Qxc4 Bg4
1969 Palma de Mallorca – Round 17 – Hort, Alex – 1/2-1/2 – Szabo, Ladislav – G153 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d5 5. c4 c6 6. Nbd2 O-O 7. O-O Ne4 8. cxd5 cxd5 9. Ne5 Nd7 10. Nxe4 Nxe5
1969 Quito/Guayaquil zt – Round ? – Garcia Martinez, Silvino – 1-0 – Campos Lopez, Mario – G17 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 c6 6. O-O d5 7. Nbd2 Ne4 8. Qb3 Qb6 9. cxd5 Qxb3 10. axb3 cxd5
Lindores Abbey Tal Memorial 2021 – Round 14.39 – Jumabayev, Rinat – 1-0 – Cori T., Deysi – G620 1. Nf3 Nf6 2. g3 g6 3. c4 Bg7 4. Bg2 O-O 5. d4 c6 6. O-O d5 7. Nbd2 Ne4 8. Qb3 Nxd2 9. Bxd2 dxc4 10. Qxc4 Be6

D78m — Neo-Gruenfeld

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.Nbd2 Ne4

Les coups candidats

8.e3 — 38.3% (159 parties)

Ambassadeurs : Sandler, Leonid (3x), Handoko, Edhi (2x), Drasko, Milan (2x), Javierre Conesa, Alfonso (2x), Ruck, Robert (2x), Germek, Milan (1x), Bozic, Aleksandar (1x), Filep, Tibor (1x)

8.cxd5 — 21.0% (87 parties)

Ambassadeurs : Malich, Burkhard, Dr. (2x), Ginting, Nasib (2x), Stoltz, Gösta (1x), Poulsen, Christian (1x), Rabar, Braslav (1x), Cortlever, Nico (1x), Czerniak, Moshe (1x), Bilek, Adam (1x)

8.Qb3 — 21.0% (87 parties)

Ambassadeurs : Bilek, Istvan (6x), Evans, Larry (2x), Vukic, Milan (2x), Panno, Oscar (2x), Schnabel, Ralf (2x), Shabalov, Alexander (2x), Steiner, Herman (1x), Konig, Imre (1x)

8.b3 — 16.4% (68 parties)

Ambassadeurs : Krogius, Nikolai V (2x), Bekker-Jensen, David (2x), Kustar, Sandor (2x), Ragozin, Viacheslav (1x), Petrov, Vladimir S. (1x), Lengyel, Laszlo (1x), Donner, Jan-Hein (1x), Toran Albero, Roman (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.e3	8.cxd5	8.Qb3	8.b3
<1800	2	—	50%	50%	—
1800-2200	119	45%	19%	13%	13%
2200-2600	201	39%	20%	23%	17%
2600+	15	40%	7%	7%	47%

Évolution par décennie (% des parties)

Décennie	N parties	8.e3	8.cxd5	8.Qb3	8.b3
1930s	1	—	—	100%	—
1940s	5	20%	40%	20%	20%
1950s	9	33%	—	44%	22%
1960s	27	11%	30%	37%	22%
1970s	21	29%	29%	29%	14%
1980s	27	15%	30%	37%	19%
1990s	84	37%	24%	17%	17%
2000s	81	37%	20%	17%	19%
2010s	133	47%	19%	19%	13%
2020s	27	67%	7%	7%	19%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.e3	47%	67%	▲ +19.3%
8.cxd5	19%	7%	▼ -11.4%
8.Qb3	19%	7%	▼ -11.4%
8.b3	13%	19%	▲ +5.7%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 1 partie
Gukesh D — 1 partie

Parties historiques

8.e3 — 38.3% (159 parties)

1949 — Germek, Milan vs Bozic, Aleksandar — 1/2-1/2 — Zagreb CRO
1952 — Moiseev, Oleg vs Furman, Semyon — 1-0 — Leningrad RUS
1952 — Keres, Paul Petrovich vs Benko, Pal — 1/2-1/2 — Budapest HUN
1952 — Abad Gonzalez, Jose Miguel vs Sajtar, Jaroslav — 1/2-1/2 — Helsinki olm
1962 — Lengyel, Levente vs Paoli, Enrico — 1-0 — Kecskemet HUN

8.cxd5 — 21.0% (87 parties)

1947 — Stoltz, Gösta vs Poulsen, Christian — 0-1 — Aalborg DEN
1949 — Rabar, Braslav vs Cortlever, Nico — 0-1 — Belgrade SRB
1961 — Udovcic, Mijo vs Stupica, Janez — 1/2-1/2 — Zagreb CRO
1963 — Bilek, Adam vs Filip Comes, Alvaro — 1-0 — Miskolc
1963 — Gipslis, Aivars vs Bukhover, Alik — 1/2-1/2 — Kiev UKR

8.Qb3 — 21.0% (87 parties)

1937 — Konig, Imre vs Trifunovic, Petar — 0-1 — Yugoslavia
1946 — Steiner, Herman vs Evans, Larry — 1-0 — Pittsburgh
1953 — Golombek, Harry vs O'Kelly, Albéric de Galway — 0-1 — Bucharest ROU
1954 — Olafsson, Fridrik vs Sajtar, Jaroslav — 1/2-1/2 — Prague CZE
1955 — Szabo, Ladislav vs Toran Albero, Roman — 1/2-1/2 — Mar del Plata ARG

8.b3 — 16.4% (68 parties)

1942 — Ragozin, Viacheslav vs Petrov, Vladimir S. — 1-0 — Sverdlovsk
1954 — Zita, Frantisek vs Weiner, Milan — 0-1 — Prague CZE
1955 — Smyslov, Vladimir vs Geller, Efim P. — 1/2-1/2 — Moskou ch-URS plof
1962 — Stein, Leon Rico vs Benko, Pal — 1/2-1/2 — Stockholm izt plof
1963 — Bilek, Istvan vs Krogius, Nikolai V — 1/2-1/2 — Budapest HUN

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