Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● c4, ● c7
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→g6, h7→g6
Passés	—	—
Majorité	—	● aile dame 4v2

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Ok (mob. 2)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● c1, ● a1, ● h1)	4 (● b8, ● c8, ● a8, ● h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	—	● …c4-c3, ● …c7-c5, ● …e7-e5

D73i — Neo-Gruenfeld, 5.Nf3 dxc4 6.Na3

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 dxc4 6.Na3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. O-O (Mettre le roi en sécurité, connecter les tours — 29 % des parties) ; Nxc4 (Cavalier actif en c4 — 21 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...c3 (Renforcer le centre — 48 % des parties) ; ...O-O (Mettre le roi en sécurité, connecter les tours — 26 % des parties) ; ...c5 (Frapper le centre adverse — 14 % des parties) ; ...Nc6 (Développer b8 — 9 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1958 Munich olm fin-B – Round 1 – Bergraser, Volf – 0-1 – Honfi, Karoly – G1 1. d4 Nf6 2. Nf3 g6 3. g3 d5 4. Bg2 Bg7 5. c4 dxc4 6. Na3 c6 7. Nxc4 Be6 8. Nce5 Bd5 9. O-O O-O 10. Be3 a5
1961 Moskou ZShK – Round 3 – Portisch, Lajos – 1/2-1/2 – Olafsson, Fridrik – G15 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. Nf3 dxc4 6. Na3 c5 7. O-O Nc6 8. dxc5 Qa5 9. Bd2 Qxc5 10. Rc1 O-O
1964 Budapest ch-HUN – Round 1 – Lengyel, Laszlo – 1-0 – Sapi, Laszlo – G173 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d5 5. c4 dxc4 6. Na3 O-O 7. Nxc4 c6 8. O-O Na6 9. b3 Nc7 10. Bb2 Nb5
2024 Superbet Chess Classic - Round 3 - So Wesley - 1/2-1/2 - Deac Bogdan-Daniel - G15 1. Nf3 1... d5 2. g3 2... g6 3. Bg2 3... Bg7 4. d4 4... Nf6 5. c4 5... dxc4 6. Na3 6... c5 7. O-O 7... Nc6 8. dxc5 8... Qxd1 9. Rxd1 9... Be6 10. Be3 10... Nd7
74. Tata Steel GMA 2012 – Round 3 – Radjabov, Teimour – 1-0 – Navara, David – G18 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 d5 5. Bg2 dxc4 6. Na3 Nc6 7. Nxc4 Be6 8. b3 a5 9. Bb2 Bd5 10. Rc1 O-O
GCT Blitz YourNextMove 2018 – Round 6.3 – Vachier-Lagrave, Maxime – 1/2-1/2 – So, Wesley – G28 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 dxc4 6. Na3 c5 7. O-O O-O 8. dxc5 c3 9. Nb5 Na6 10. Nxc3 Nxc5
GCT Rapid YourNextMove 2018 – Round 8.1 – So, Wesley – 1/2-1/2 – Karjakin, Sergey – G36 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 dxc4 6. Na3 c5 7. O-O O-O 8. dxc5 c3 9. Nb5 Na6 10. Nxc3 Nxc5
Olympiad 2002 – Round 5 – Azmaiparashvili, Zurab – 1-0 – Kozul, Zdenko – G166 1. g3 g6 2. Bg2 Bg7 3. d4 d5 4. Nf3 Nf6 5. c4 dxc4 6. Na3 c3 7. bxc3 O-O 8. Rb1 c5 9. Ne5 Nd5 10. Qd3 Nc6
Superbet Rapid 2019 – Round 9.1 – Artemiev, Vladislav – 1/2-1/2 – So, Wesley – G41 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 dxc4 6. Na3 c5 7. O-O O-O 8. dxc5 c3 9. Nb5 Na6 10. Nxc3 Nxc5
Wch FIDE KO 1997 – Round 1.2 – Andersson, Ulf 1949 – 1/2-1/2 – Christiansen, Larry – G1 1. Nf3 g6 2. d4 Nf6 3. g3 Bg7 4. Bg2 d5 5. c4 dxc4 6. Na3 Nc6 7. Nxc4 Be6 8. b3 O-O 9. Bb2 Bd5 10. Rc1 a5

D73i —

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 dxc4 6.Na3

Les coups candidats

6…c3 — 48.0% (359 parties)

Ambassadeurs : Karpov, Anatoly (6x), Jankovic, Alojzije (5x), Mayorau, Mikita (5x), Salem, A.R. Saleh (5x), Svidler, Peter (4x), Kozul, Zdenko (4x), Petrosian, Arshak B (3x), Miles, Anthony J (3x)

6…O-O — 26.2% (196 parties)

Ambassadeurs : Romanishin, Oleg M (4x), Edouard, Romain (3x), Shumiakina, Tatiana (2x), Kovalevskaya, Ekaterina (2x), Ftacnik, Lubomir (2x), Meier, Georg (2x), Soos, Bela (1x), Gheorghiu, Florin (1x)

6…c5 — 14.4% (108 parties)

Ambassadeurs : So, Wesley (4x), Schmidt, Wlodzimierz (3x), Tkachiev, Vladislav (3x), Karpov, Anatoly (3x), Olafsson, Fridrik (2x), Brustman, Agnieszka (2x), Murdzia, Piotr (2x), Szekely, Peter (2x)

6…Nc6 — 8.6% (64 parties)

Ambassadeurs : Ellers, Holger, Dr. (3x), Horvath, Peter (2x), Alaa, Dema (2x), Konopka, Michal (2x), Hort, Vlastimil (1x), Gheorghiu, Florin (1x), Agaba Davis (1x), Lamford, Paul (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…c3	6…O-O	6…c5	6…Nc6
<1800	20	45%	25%	10%	10%
1800-2200	167	47%	25%	15%	10%
2200-2600	453	49%	27%	14%	8%
2600+	66	59%	21%	15%	3%

Évolution par décennie (% des parties)

Décennie	N parties	6…c3	6…O-O	6…c5	6…Nc6
1950s	2	—	50%	—	—
1960s	5	—	60%	20%	20%
1970s	8	25%	12%	50%	12%
1980s	22	64%	23%	5%	9%
1990s	99	46%	28%	16%	5%
2000s	220	41%	29%	14%	15%
2010s	302	57%	22%	12%	7%
2020s	90	40%	30%	21%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…c3	57%	40%	▼ -16.6%
6…O-O	22%	30%	▲ +7.8%
6…c5	12%	21%	▲ +8.9%
6…Nc6	7%	1%	▼ -6.2%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 9 parties
Kasparov, Garry — 3 parties
Carlsen, Magnus — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

6…c3 — 48.0% (359 parties)

1977 — Schmidt, Wlodzimierz vs Gipslis, Aivars — 1/2-1/2 — Budapest HUN
1978 — Petrosian, Arshak B vs Ivanov, Igor V. — 0-1 — Daugavpils LAT
1980 — Miles, Anthony J vs Arnason, Jon L — 1/2-1/2 — Reykjavik ISL
1981 — Miles, Anthony J vs Kasparov, Garry — 1/2-1/2 — Tilburg NED
1981 — Sveshnikov, Evgeny vs Tukmakov, Vladimir B — 1/2-1/2 — Frunze ch-URS

6…O-O — 26.2% (196 parties)

1952 — Bojta vs Molnar, Aaron — 1-0 — Budapest HUN
1961 — Soos, Bela vs Gheorghiu, Florin — 1/2-1/2 — Romania
1964 — Lengyel, Laszlo vs Sapi, Laszlo — 1-0 — Budapest ch-HUN
1967 — Mashian, Yaacov vs Aditya Balu Jadhav — 1-0 — Switzerland
1973 — De Fotis, Gregory vs Kaufman, Lawrence — 1/2-1/2 — Chicago, IL USA

6…c5 — 14.4% (108 parties)

1961 — Portisch, Lajos vs Olafsson, Fridrik — 1/2-1/2 — Moskou ZShK
1975 — Weyerstrass, Ronald vs Pai Zay Yar Ko — 1-0 — cr.
1976 — Vukic, Milan vs Olafsson, Fridrik — 1/2-1/2 — Novi Sad SRB
1976 — Schmidt, Wlodzimierz vs Savon, Vladimir — 1/2-1/2 — Erevan ARM
1977 — Dzindzichashvili, Roman vs Sosonko, Gennadi — 1/2-1/2 — Geneve Geneva SUI

6…Nc6 — 8.6% (64 parties)

1965 — Hort, Vlastimil vs Gheorghiu, Florin — 1/2-1/2 — Sinaia
1975 — Vukic, Milan vs Padevsky, Nikola — 0-1 — Varna BUL
1980 — Semeniuk, Alexander A vs Koejanin — 1/2-1/2 — Ch URS (corr.)
1989 — Agaba Davis vs Lamford, Paul — 0-1 — corr GB grand open
1991 — Ellers, Holger, Dr. vs Risch, Stefan — 0-1 — FRG-chT qual corr