D77j — Neo-Gruenfeld, 6.O-O dxc4 7.Na3 Nc6 8.Nxc4 Be6

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O dxc4 7.Na3 Nc6 8.Nxc4 Be6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte f4, case forte e5, case forte g5, paire de fous, colonne c.
Faiblesses adverses : Bg7 enfermé.
Problèmes : Bc1 enfermé, Bg2 enfermé.
Plans :
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4
● Rc — Tour sur colonne c

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (3v2), case forte g4, case forte d5, case forte f5, Be6 actif, paire de fous, colonne d.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé, knight c4 en prise.
Problèmes : Bg7 enfermé.
Plans :
● ...Bg4 — Clouer Nf3
● ...Rd — Tour sur colonne d

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

D77j — Neo-Gruenfeld

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O dxc4 7.Na3 Nc6 8.Nxc4 Be6

Eval: [+0.41]

Les coups candidats

9.b3 — 85.1% (1124 parties) →

Ambassadeurs : Banas, Jan (13x), Pribyl, Josef (12x), Gheorghiu, Florin (10x), Panno, Oscar (9x), Ftacnik, Lubomir (9x), Gutman, Lev (7x), Csom, Istvan (6x), Nikolic, Predrag (6x)

9.Nce5 — 12.7% (168 parties)

Ambassadeurs : Panno, Oscar (3x), Wittenberg, Andreas (2x), Wimmer, Jaroslav (2x), Luong Phuong Hanh (2x), Piesik, Piotr (2x), Doncevic, Dario (2x), Dunkelblum, Arthur (1x), Filip, Marius Liviu (1x)

9.Ne3 — 1.4% (18 parties)

Ambassadeurs : Banas, Jan (2x), Burgalat, Eliot (1x), Martello Panno, David (1x), Lange, Wilfried (1x), Rautenberg, Wilhelm (1x), Garancovsky, Pavol (1x), Thierjung, Helmut (1x), Todor, Razvan (1x)

9.Nfe5 — 0.5% (7 parties)

Ambassadeurs : Wiebe, Patrick (1x), Lauber, Arnd (1x), Hachmeister, Dirk (1x), Hermesmann, Hans (1x), Jackson, Ralph E (1x), Smerdon, David C (1x), Barskiy, Vitaliy (1x), Sailer, Wolfgang (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.b3	9.Nce5	9.Ne3	9.Nfe5
<1800	8	88%	12%	—	—
1800-2200	214	75%	21%	2%	1%
2200-2600	924	88%	10%	1%	0%
2600+	27	93%	7%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9.b3	9.Nce5	9.Ne3	9.Nfe5
1940s	2	100%	—	—	—
1950s	31	81%	13%	6%	—
1960s	28	79%	21%	—	—
1970s	80	90%	10%	—	—
1980s	59	86%	12%	—	—
1990s	201	87%	10%	1%	1%
2000s	424	88%	11%	1%	0%
2010s	397	82%	15%	1%	1%
2020s	99	80%	17%	3%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.b3	82%	80%	▼ -2.6%
9.Nce5	15%	17%	▲ +2.1%
9.Ne3	1%	3%	▲ +2.0%
9.Nfe5	1%	0%	▼ -1.0%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 1 partie
Karpov, Aleksandr — 1 partie
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

9.b3 — 85.1% (1124 parties)

1949 — Rellstab, Ludwig vs Heinicke, Herbert — 1-0 — Oldenburg GER
1949 — Mueller, Hans vs Sajtar, Jaroslav — 1/2-1/2 — CZE-AUT Prague CZE
1950 — Agustsson, Gudmundur vs Kinnmark, Olof — 1/2-1/2 — Reykjavik ISL
1951 — Nuernberg, Friedrich vs Heinicke, Herbert — 0-1 — Augsburg GER
1951 — Popov, Vesselin vs Plater, Kazimierz — 1/2-1/2 — Sopot

9.Nce5 — 12.7% (168 parties)

1951 — Fred, Aatos vs Sajtar, Jaroslav — 1/2-1/2 — Marianske Lazne zt
1955 — Szabados, Eugenio vs Gilg, Karl — 1/2-1/2 — Wolfratshsn BRD-ITA
1957 — Tavares Patino, Leonardo Ivan vs Panno, Oscar — 0-1 — Rio de Janeiro BRA
1959 — Foguelman, Alberto vs Emma, Jaime — 0-1 — Buenos Aires ARG
1960 — De Freitas, Manuela Schmitz vs German, Eugenio — 0-1 — Sao Paulo BRA

9.Ne3 — 1.4% (18 parties)

1952 — Burgalat, Eliot vs Martello Panno, David — 0-1 — Buenos Aires ARG
1957 — Lange, Wilfried vs Rautenberg, Wilhelm — 1/2-1/2 — Essen GER
1997 — Thierjung, Helmut vs Todor, Razvan — 1/2-1/2 — Austria
1997 — Medic, Mirjana vs Mestrovic, Toni — 1-0 — Zagreb CRO
1998 — Garancovsky, Pavol vs Banas, Jan — 0-1 — Tatry op Tatranska Lomnica

9.Nfe5 — 0.5% (7 parties)

1994 — Wiebe, Patrick vs Lauber, Arnd — 0-1 — GER
1997 — Hachmeister, Dirk vs Hermesmann, Hans — 1/2-1/2 — Ruhrgebiet
2003 — Jackson, Ralph E vs Smerdon, David C — 0-1 — Canberra AUS
2010 — Barskiy, Vitaliy vs Sailer, Wolfgang — 0-1 — Bayern
2016 — Osipi, Jair vs Pina, Ulises — 1/2-1/2 — Foz do Iguacu

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→g6, h7→g6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (3v1), ● g5 (2v0)	● g4 (2v0), ● d5 (3v0), ● f5 (2v0)
Cases faibles	● d4	—
Centre	● e5 (3v1)	● d5 (3v0), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Be6		● Be6 Actif (mob. 7)
Bg7		● Bg7 Enfermé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	1 (a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5, ● e2-e3	—

Partie
1951 Marianske Lazne zt – Round 1 – Fred, Aatos – 1/2-1/2 – Sajtar, Jaroslav – G50 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Nxc6 Bxc6
1957 Rio de Janeiro zt – Round 1 – Tavares Patino, Leonardo Ivan – 0-1 – Panno, Oscar – G44 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Bf4 Nxe5
1959 Argentina – Round 8 – Foguelman, Alberto – 0-1 – Emma, Jaime – G40 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. O-O dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Nxc6 Bxc6
1960 Reggio Emilia 6061 03rd – Round 3 – Cuderman, Vinko – 1/2-1/2 – Dely, Peter – G11 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Bf4 Nh5
1960 Sao Paulo zt – Round 5 – De Freitas, Manuela Schmitz – 0-1 – German, Eugenio – G28 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. Nf3 O-O 6. O-O dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. e3 Nxe5
1963 Nt Helmbrechts GER – Round 12 – Besser, Hans – 1/2-1/2 – Clemens, Christian, Dr. – G49 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. Nbd2 Nc6 7. c4 dxc4 8. Nxc4 Be6 9. Nce5 Bd5 10. Bf4 Nh5
1964 Hoogovens – Round 1 – Dunkelblum, Arthur – 0-1 – Filip, Marius Liviu – G7 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. d4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Nxc6 Bxc6
1966 Clare Benedict Cup – Round 3 – Garcia Aruca, Francisco Fernando – 1/2-1/2 – Langeweg, Kick – G8 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Bf4 h6
1966 Tbilisi ch-URS – Round 16 – Doroshkievich, Vladimir K – 1/2-1/2 – Savon, Vladimir – G144 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d5 6. O-O dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Bf4 Qc8
FIDE-Wch k.o. 1997 – Round 1.6 – Andersson, Ulf 1949 – 1/2-1/2 – Christiansen, Larry – G53 1. Nf3 Nf6 2. d4 g6 3. g3 d5 4. Bg2 Bg7 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Bf4 e6
World Blitz 2019 – Round 9.15 – Adly, Ahmed – 1-0 – Christiansen, Johan-Sebastian – G597 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. Nce5 Bd5 10. Bf4 Nh5