D78n — Neo-Gruenfeld, 6.O-O c6 7.Nbd2 Bf5

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.Nbd2 Bf5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

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

Côté adverse. Le fou enfermé en g7.

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

Plans. Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur les cases fortes e4 et g4, un fou actif en f5 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2.

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

Plans. ...Nbd7 (Développer Nb8) ; ...Bg4 (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 (2v0)	● e4 (3v1), ● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (2v0)	● d5 (3v1), ● e4 (3v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Enfermé (mob. 2)
Bf5		● Bf5 Actif (mob. 9)
Bg7		● Bg7 Enfermé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	2 (b8, 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

Partie
1924 Gyor – Round 1 – Przepiorka, Dawid – 1-0 – Gruber, Sebastian – G31 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. Nbd2 Bf5 7. c4 c6 8. Re1 Ne4 9. Qb3 Qb6 10. Qxb6 axb6
1952 Budapest – Round 17 – Benko, Pal – 1-0 – Stahlberg, Gideon – G153 1. Nf3 d5 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. c4 c6 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 a5 10. h3 Na6
1952 Moskou ch-URS – Round 1 – Moiseev, Oleg – 1/2-1/2 – Aronin, Lev – G67 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 c6 6. O-O d5 7. Nbd2 Bf5 8. Ne5 Nbd7 9. Qb3 Qb6 10. Nxd7 Bxd7
1956 Moscow olm prel – Round 5 – Bolbochan, J. – 1/2-1/2 – Darga, Klaus – G169 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c6 6. d4 d5 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Qa5 10. Nxe4 Bxe4
1956 URS Ch sf – Round ? – Novotelnov, Nikolai – 1/2-1/2 – Ragozin, Viacheslav – G2 1. c4 c6 2. d4 d5 3. Nd2 Nf6 4. Ngf3 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O Bf5 8. e3 Na6 9. a3 dxc4 10. Ne5 Qc8
1958 New York ch-USA – Round 9 – Kalme, G. – 1/2-1/2 – Benko, Pal – G45 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 c6 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 a5 10. e3 a4
1959 New York ch-USA – Round 6 – Weinstein, Raymond – 0-1 – Benko, Pal – G31 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 c6 6. O-O d5 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 a5 10. Nh4 Nxd2
1964 Pecs – Round 2 – Honfi, Karoly – 1/2-1/2 – Bogdanovic, Rajko – G1 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 O-O 6. O-O d5 7. Nbd2 Bf5 8. Ne5 Nbd7 9. cxd5 cxd5 10. Qb3 Qb6
1965 Hungary – Round 1 – Kluger, Gyula – 1-0 – Navarovszky, Laszlo – G57 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. Nbd2 Bf5 8. Qb3 Qb6 9. Nh4 Bc8 10. e3 Rd8
1966 La Habana olm fin-A – Round 9 – Bilek, Istvan – 1-0 – Stein, Leon Rico – G177 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c6 6. d4 d5 7. Nbd2 Bf5 8. b3 a5 9. Bb2 Ne4 10. Nh4 Nxd2
1967 Capablanca Memorial – Round 4 – Pachman, Ludek – 1/2-1/2 – Gligorić, Svetozar – G40 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c6 6. d4 d5 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Qa5 10. Nxe4 Bxe4
1967 Havana Armies Ch 4th – Round 2 – Hort, Vlastimil – 1/2-1/2 – Jansa, Vlastimil – G13 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d5 5. c4 c6 6. Nbd2 O-O 7. O-O Bf5 8. b3 Qc8 9. Re1 Bh3 10. Bh1 Qf5
1967 Kraljevo – Round 1 – Vukic, Maroje – 1/2-1/2 – Bukic, Enver – G2 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. O-O O-O 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 a5 10. Nh4 Nxd2
1967 Moscow – Round 1 – Portisch, Lajos – 1-0 – Pachman, Ludek – G138 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 c6 5. d4 d5 6. Nbd2 O-O 7. O-O Bf5 8. b3 Ne4 9. Bb2 Nd7 10. Nh4 Nxd2
1967 Palma de Mallorca – Round 2 – Donner, Jan-Hein – 1/2-1/2 – Gligorić, Svetozar – G14 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nf3 Bg7 6. Nbd2 O-O 7. O-O Bf5 8. b3 Ne4 9. Bb2 Qa5 10. Qc1 Nd7
1967 YUG Ch 22th – Round 1 – Vukic, Milan – 1/2-1/2 – Bukic, Enver – G4 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. O-O O-O 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 a5 10. Nh4 Nxd2
1968 Bristol ch-BCF – Round 7 – Whiteley, Andrew Jonathan – 1/2-1/2 – Hempson, Peter W – G72 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Nbd2 Bg7 5. c4 c6 6. Bg2 Bf5 7. O-O O-O 8. b3 Nbd7 9. Bb2 Ne4 10. Nh4 Nxd2
1968 Bristol ch-BCF – Round 8 – Webb, Samuel – 0-1 – Hartston, William R – G93 1. Nf3 g6 2. d4 Nf6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. Nbd2 c6 7. c4 Bf5 8. Qb3 Qb6 9. c5 Qc7 10. Ne5 Nfd7
1968 CSR Ch – Round 13 – Kozma, Julius – 1/2-1/2 – Hlousek, Zdenek – G114 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. Nbd2 O-O 7. O-O Bf5 8. b3 Ne4 9. Bb2 Nxd2 10. Qxd2 Be4
1968 It Buesum GER – Round 9 – Kolarov, Atanas S. – 1/2-1/2 – Donner, Jan-Hein – G39 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. Nbd2 O-O 7. O-O Bf5 8. b3 Qa5 9. Bb2 Ne4 10. Nxe4 Bxe4
1968 Rubinstein Memorial – Round 3 – Forintos, Gyozo V – 1/2-1/2 – Soos, Bela – G23 1. g3 d5 2. Bg2 g6 3. Nf3 Bg7 4. O-O Nf6 5. c4 c6 6. d4 O-O 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Qa5 10. Qc1 Nxd2
1968 Rubinstein Memorial – Round 9 – Bilek, Istvan – 1/2-1/2 – Pietzsch, Wolfgang – G49 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 c6 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Qa5 10. a3 Rd8
1968 Skopje/Ohrid – Round 18 – Portisch, Lajos – 1/2-1/2 – Gligorić, Svetozar – G154 1. Nf3 Nf6 2. c4 g6 3. g3 c6 4. Bg2 Bg7 5. O-O O-O 6. d4 d5 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Qa5 10. Qe1 Nxd2
1968 Toth Memorial – Round 11 – Lengyel, Agnes – 1/2-1/2 – Dely, Peter – G43 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 c6 6. O-O d5 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Nxd2 10. Nxd2 Qd7
1969 Hoogovens – Round 1 – Kozma, Julius – 1/2-1/2 – Scholl, Eddie C – G6 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 O-O 6. O-O d5 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 a5 10. Nh4 Nxd2
1969 Moskou ch-URS – Round 1 – Averkin, Orest N – 1/2-1/2 – Gufeld, Eduard – G60 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. Nbd2 O-O 7. O-O Bf5 8. b3 Ne4 9. Bb2 Qa5 10. Qc1 Nd7
1970 Palma de Mallorca Interzonal – Round 1 – Filip, Miroslav – 1/2-1/2 – Hort, Vlastimil – G120 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nd2 Bg7 6. Ngf3 O-O 7. O-O Bf5 8. b3 Ne4 9. Bb2 Qa5 10. Qc1 Nd7
Arctic Stars Final 2010 – Round 1 – Carlsen, Magnus – 1-0 – Anand, Viswanathan – G1 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Na6 10. Nh4 Nxd2
Interpolis 1980 – Round 1 – Hort, Vlastimil – 1/2-1/2 – Kavalek, Lubomir – G15 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 c6 6. O-O d5 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Nd7 10. Nh4 Nxd2
It, Dortmund GER 1997 – Round 6 – Karpov, Anatoly – 1/2-1/2 – Topalov, Veselin – G6 1. d4 Nf6 2. Nf3 g6 3. g3 d5 4. Bg2 c6 5. O-O Bg7 6. Nbd2 O-O 7. c4 Bf5 8. b3 Ne4 9. Bb2 Nd7 10. Nh4 Nxd2
Manila Interzonal 1976 – Round 18 – Ljubojevic, Ljubomir – 1/2-1/2 – Uhlmann, Wolfgang – G77 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 c6 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 a5 10. Nh4 Nxd2
Qatar Masters Open 2015 – Round 9.27 – Dubov, Daniil – 1-0 – Karavade, Eesha – G305 1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Nd7 10. Nh4 Nxd2
Riga FIDE Grand Prix 2019 – Round 2.1 – Duda, Jacob – 1/2-1/2 – Mamedyarov, Shakhriyar – G42 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Nbd2 Bf5 8. b3 a5 9. Re1 Nbd7 10. Bb2 a4
World Blitz 2018 – Round 4.54 – Paravyan, David – 1-0 – Mikhalevski, Victor – G249 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nf3 Bg7 6. O-O O-O 7. Nbd2 Bf5 8. b3 a5 9. Bb2 a4 10. a3 axb3
World Blitz 2019 – Round 11.41 – Fridman, Daniel – 1/2-1/2 – Antipov Olano, Maxim – G753 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 c6 7. Nbd2 Bf5 8. b3 a5 9. Bb2 a4 10. e3 Qa5
World Blitz 2019 – Round 4.66 – Rozum, Ivan – 1/2-1/2 – Korobov, Anton – G290 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Qa5 10. Nxe4 Bxe4
World Rapid 2016 – Round 10.7 – Cheparinov, Ivan – 1/2-1/2 – Radjabov, Teimour – G402 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. O-O O-O 7. Nbd2 Bf5 8. b3 Ne4 9. Bb2 Nd7 10. Nh4 Nxd2
World Rapid 2019 – Round 4.62 – Kazakouski, Valery – 0-1 – Paravyan, David – G276 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 c6 5. Bg2 d5 6. Nbd2 O-O 7. O-O Bf5 8. b3 Ne4 9. Bb2 Nxd2 10. Nxd2 Na6

D78n — Neo-Gruenfeld

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.Nbd2 Bf5

Eval: [+0.14]

Les coups candidats

8.b3 — 79.2% (780 parties)

Ambassadeurs : Arkell, Keith C (10x), Ruck, Robert (8x), Ribli, Zoltan (7x), Hort, Vlastimil (6x), Csom, Istvan (6x), Portisch, Lajos (5x), Gligoric, Svetozar (5x), Bukic, Enver (5x)

8.Qb3 — 8.6% (85 parties)

Ambassadeurs : Baum, Bernd, Dr. (2x), Steckel, William H (1x), Quillen, James Paul (1x), Kluger, Gyula (1x), Navarovszky, Laszlo (1x), Reicher, Johannes (1x), Szabo, Stefan (1x), Webb, Samuel (1x)

8.Nh4 — 4.2% (41 parties)

Ambassadeurs : Grimm, Wolfgang, Dr. (3x), Juerges, Kai (2x), Nemeth, Zoltan (1x), Dragojlovic, Andjelko (1x), Basagic, Zlatko (1x), Baum, Bernd, Dr. (1x), Ingram, Benny (1x), ? (1x)

8.e3 — 2.0% (20 parties)

Ambassadeurs : Kurajica, Bojan (8x), Mikhalchishin, Adrian (2x), Novotelnov, Nikolai (1x), Ragozin, Viacheslav (1x), Zidansek, Bojan (1x), Rubinic (1x), Stempin, Pawel (1x), Blatny, Pavel (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.b3	8.Qb3	8.Nh4	8.e3
<1800	19	63%	16%	16%	—
1800-2200	246	62%	20%	8%	1%
2200-2600	539	89%	4%	2%	2%
2600+	57	98%	—	—	2%

Évolution par décennie (% des parties)

Décennie	N parties	8.b3	8.Qb3	8.Nh4	8.e3
1920s	1	—	—	—	—
1940s	1	—	100%	—	—
1950s	9	67%	11%	—	11%
1960s	25	80%	8%	—	4%
1970s	51	96%	4%	—	—
1980s	42	81%	2%	2%	12%
1990s	133	78%	8%	7%	2%
2000s	173	69%	12%	6%	2%
2010s	463	80%	10%	5%	1%
2020s	87	86%	5%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.b3	80%	86%	▲ +5.9%
8.Qb3	10%	5%	▼ -4.9%
8.Nh4	5%	0%	▼ -4.5%
8.e3	1%	0%	▼ -1.3%

Joueurs célèbres

Champions du monde dans cette position

Ju, Wenjun — 3 parties
Gukesh D — 3 parties
Smyslov, Vladimir — 2 parties
Karpov, Aleksandr — 1 partie
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie
Anand, Viswanathan — 1 partie

Parties historiques

8.b3 — 79.2% (780 parties)

1952 — Benko, Pal vs Stahlberg, Gideon — 1-0 — Budapest HUN
1956 — Bolbochan, J. vs Darga, Klaus — 1/2-1/2 — Moscow RUS
1957 — Farre Mallofre, Miguel vs Rodriguez Garcia, Jesus — 1/2-1/2 — Zaragoza
1958 — Kalme, G. vs Benko, Pal — 1/2-1/2 — New York, NY USA
1958 — Kalme, Charles I vs Benko, Pal — 1/2-1/2 — New York, NY USA

8.Qb3 — 8.6% (85 parties)

1945 — Steckel, William H vs Quillen, James Paul — 1-0 — Hollywood, CA
1953 — Reicher, Johannes vs Szabo, Stefan — 0-1 — Bucharest ROU
1965 — Kluger, Gyula vs Navarovszky, Laszlo — 1-0 — Budapest HUN
1968 — Webb, Samuel vs Hartston, William R — 0-1 — Bristol ch-BCF
1978 — Ekelund, Peter vs Kirjavainen, Pertti — 1-0 — Helsinki FIN

8.Nh4 — 4.2% (41 parties)

1989 — Nemeth, Zoltan vs Dragojlovic, Andjelko — 1-0 — Tapolca
1990 — Ingram, Benny vs ? — 0-1 — Adelaide op Adelaide AUS
1990 — Syvalahti, Heikki vs Salo, Heikki — 0-1 — Helsinki HOSK
1992 — Kamanel Zamora, Juan Felipe vs Hernandez, Ivan — 1/2-1/2 — ?
1993 — Basagic, Zlatko vs Baum, Bernd, Dr. — 1/2-1/2 — Werfen

8.e3 — 2.0% (20 parties)

1956 — Novotelnov, Nikolai vs Ragozin, Viacheslav — 1/2-1/2 — Leningrad RUS
1963 — Zidansek, Bojan vs Rubinic — 1-0 — Dravograd
1983 — Kurajica, Bojan vs Uhlmann, Wolfgang — 1/2-1/2 — Sarajevo BIH
1985 — Kurajica, Bojan vs Mikhalchishin, Adrian — 1-0 — Sarajevo BIH
1985 — Kurajica, Bojan vs Mikhalchishin, Adrian — 1-0 — ?

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