D78g — Neo-Gruenfeld, 6.O-O c6 7.Qb3

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.Qb3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte f4….

Atouts. Les Blancs s'appuient sur les cases fortes f4, e5 et g5 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et c8.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. Nc3 (Développer Nb1) ; Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e4….

Atouts. Les Noirs s'appuient sur les cases fortes e4, g4 et f5 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	● f4 (2v0), ● e5 (2v0), ● g5 (2v0)	● e4 (2v0), ● g4 (2v0), ● f5 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (2v0)	● d5 (3v1), ● e4 (2v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● 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

Partie
1940 New York ch-USA – Round 16 – Shainswit, George – 1-0 – Woliston, Philip – G92 1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. g3 c6 5. Bg2 O-O 6. O-O d5 7. Qb3 Nbd7 8. cxd5 cxd5 9. Nc3 Qa5 10. Bd2 Rd8
1954 Olympiad final B – Round 1 – Blau, Max – 0-1 – Beni, Alfred – G22 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. c4 c6 6. d4 O-O 7. Qb3 e6 8. Nc3 b6 9. Rd1 Nbd7 10. Bf4 Ba6
1954 Olympiad final B – Round 13 – Raizman, Maurice – 1-0 – Blau, Max – G29 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 c6 5. O-O d5 6. Qb3 O-O 7. d4 Nbd7 8. cxd5 cxd5 9. Nc3 e6 10. Bf4 Nb6
1955 Mar del Plata – Round 12 – Gligorić, Svetozar – 1-0 – Pilnik, Herman – G81 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Nf3 Bg7 5. Bg2 O-O 6. O-O d5 7. Qb3 Qa5 8. Bf4 Qa6 9. cxd5 Nxd5 10. Be5 Qxe2
1962 Capablanca Memorial – Round 20 – Guimard, Carlos E – 1/2-1/2 – Cobo Arteaga, Eldis – G200 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. Qb3 b6 8. cxd5 cxd5 9. Ne5 Bb7 10. Nc3 Nc6
1963 LAT Ch – Round ? – Zilber, Israel – 0-1 – Solmanis, Zigfrids – G71 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Qb3 Nbd7 8. Nc3 dxc4 9. Qxc4 Nb6 10. Qd3 Nfd5
1965 Kiel Open – Round 8 – Schroeder, Hannes – 1/2-1/2 – Besser, Hans – G41 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c6 6. d4 d5 7. Qb3 Ne4 8. Nc3 Nxc3 9. bxc3 dxc4 10. Qxc4 Qd5
1966 Hastings6667 – Round 2 – Mecking, Henrique – 1/2-1/2 – Uhlmann, Wolfgang – G8 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. O-O O-O 7. Qb3 Ne4 8. Nc3 dxc4 9. Qxc4 Bf5 10. Qb3 Qc8
1968 Hungary – Round 1 – Bilek, Istvan – 1/2-1/2 – Haag, Ervin – G150 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Qb3 b6 8. cxd5 cxd5 9. Ne5 Bb7 10. Bf4 Nc6
36. Olympiad 2004 – Round 13 – Korchnoi, Viktor – 1/2-1/2 – Radjabov, Teimour – G488 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c6 6. d4 d5 7. Qb3 1/2-1/2
36. Olympiad 2004 – Round 7 – Vaganian, Rafael A – 1-0 – Smirin, Ilia – G238 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Nf3 Bg7 5. Bg2 d5 6. Qb3 O-O 7. O-O a5 8. Bf4 a4 9. Qb4 Nbd7 10. Na3 dxc4
83. Tata Steel Masters 2021 – Round 6.2 – Vachier-Lagrave, Maxime – 1/2-1/2 – Aditya Tari – G40 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Qb3 a5 8. Bf4 a4 9. Qb4 dxc4 10. Qxc4 Qa5
FIDE Candidates 2016 – Round 5.1 – Giri, Anish – 1/2-1/2 – Svidler, Peter – G17 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 c6 6. Qb3 O-O 7. O-O a5 8. cxd5 a4 9. Qd1 cxd5 10. Nc3 Ne4
FIDE World Cup 2017 – Round 2.2 – Rapport, Richard – 1/2-1/2 – Wei, Yi – G250 1. Nf3 Nf6 2. g3 g6 3. d4 Bg7 4. Bg2 d5 5. O-O O-O 6. c4 c6 7. Qb3 a5 8. cxd5 1/2-1/2
Saint Louis Blitz 2023 – Round 16.5 – So, Wesley – 1-0 – Vachier-Lagrave, Maxime – G80 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. O-O O-O 6. c4 c6 7. Qb3 a5 8. cxd5 a4 9. Qd1 cxd5 10. Nc3 Ne4
Sharjah Grand Prix 2017 – Round 8.5 – Li, Chao – 1/2-1/2 – Ding, Liren – G68 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Qb3 a5 8. cxd5 a4 9. Qd1 cxd5 10. Nc3 Ne4
TCh-RUS 2008 – Round 3 – Grachev, Boris – 1/2-1/2 – Eljanov, Pavel – G77 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 c6 5. Bg2 O-O 6. O-O d5 7. Qb3 e6 8. Nc3 b6 9. Bg5 Bb7 10. Rfe1 h6
World Blitz 2018 – Round 1.39 – Dreev, Aleksey – 1-0 – Makarov, Makar – G29 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 c6 7. Qb3 a5 8. cxd5 a4 9. Qd1 cxd5 10. Nc3 a3
World Blitz 2019 – Round 10.80 – Inarkiev, Ernesto – 1-0 – Triapishko, Alexandr – G716 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. c4 c6 6. Qb3 O-O 7. O-O a5 8. cxd5 a4 9. Qd1 cxd5 10. Nc3 Qa5
World Blitz 2019 – Round 8.41 – Alekseev, Evgeny – 1/2-1/2 – Antipov Olano, Maxim – G553 1. c4 g6 2. g3 c6 3. Bg2 d5 4. Nf3 Bg7 5. d4 Nf6 6. O-O O-O 7. Qb3 a5 8. cxd5 a4 9. Qd1 cxd5 10. Nc3 Qa5
World Rapid 2021 – Round 2.54 – Jumabayev, Rinat – 1/2-1/2 – Ivic, Velimir – G113 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. c4 c6 6. O-O O-O 7. Qb3 a5 8. cxd5 a4 9. Qd1 Nxd5 10. h3 c5

D78g — Neo-Gruenfeld

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.Qb3

Les coups candidats

7…Qb6 — 42.4% (890 parties) →

Ambassadeurs : Vachier-Lagrave, Maxime (15x), Dreev, Aleksey (12x), Loginov, Valery A (9x), Banusz, Tamas (9x), Inarkiev, Ernesto (6x), Jumabayev, Rinat (6x), Gabuzyan, Hovhannes (6x), Wojtaszek, Radoslaw (6x)

7…dxc4 — 28.3% (594 parties) →

Ambassadeurs : Loginov, Valery A (4x), Tan, Zhongyi (4x), Forintos, Gyozo V (3x), Kochyev, Alexander (3x), Szmetan, Jorge (3x), Wojtaszek, Radoslaw (3x), Gupta, Abhijeet (3x), Sutovsky, Emil (3x)

7…a5 — 13.7% (287 parties)

Ambassadeurs : Socko, Bartosz (5x), Svane, Rasmus (5x), Khenkin, Igor (3x), Loginov, Valery A (3x), Bures, Jaroslav (3x), Anderson, Clarence (3x), Dreev, Aleksey (3x), Goldin, Alexander (2x)

7…Nbd7 — 7.5% (158 parties)

Ambassadeurs : Lerner, Konstantin Z (2x), Shainswit, George (1x), Woliston, Philip (1x), Zilber, Israel (1x), Solmanis, Zigfrids (1x), De Souza Mendes, Joao (1x), Cruz Filho, Oswaldo (1x), Raizman, Maurice (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…Qb6	7…dxc4	7…a5	7…Nbd7
<1800	18	22%	39%	6%	28%
1800-2200	498	30%	33%	9%	15%
2200-2600	1249	47%	27%	16%	4%
2600+	209	56%	21%	21%	—

Évolution par décennie (% des parties)

Décennie	N parties	7…Qb6	7…dxc4	7…a5	7…Nbd7
1920s	2	—	100%	—	—
1930s	4	25%	50%	—	—
1940s	3	33%	33%	—	33%
1950s	16	19%	50%	—	12%
1960s	28	36%	29%	—	11%
1970s	16	62%	25%	—	6%
1980s	39	38%	33%	13%	5%
1990s	225	36%	35%	6%	12%
2000s	291	26%	38%	10%	13%
2010s	1108	51%	26%	10%	6%
2020s	369	34%	21%	35%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…Qb6	51%	34%	▼ -16.6%
7…dxc4	26%	21%	▼ -4.6%
7…a5	10%	35%	▲ +25.3%
7…Nbd7	6%	4%	▼ -2.3%

Joueurs célèbres

Champions du monde dans cette position

Ding, Liren — 5 parties
Ju, Wenjun — 4 parties
Gukesh D — 3 parties
Kramnik, Vladimir — 3 parties
Carlsen, Magnus — 1 partie

Parties historiques

7…Qb6 — 42.4% (890 parties)

1934 — Heinicke, Herbert vs Krause, Kurt — 1-0 — Aachen GER
1947 — Palme, Rudolf vs Kraus, Rudolf — 1/2-1/2 — Kirchheim
1955 — Pachman, Ludek vs Szabo, Ladislav — 1/2-1/2 — Buenos Aires ARG
1955 — Byrne, David vs Geller, Efim P. — 0-1 — Moscow RUS
1959 — Ivkov, Borislav vs Pachman, Ludek — 1/2-1/2 — Mar del Plata ARG

7…dxc4 — 28.3% (594 parties)

1922 — Koenig, Imre vs Gruenfeld, Ernst — 0-1 — Vienna AUT
1923 — Rubinstein, Akiba vs Gruenfeld, Ernst — 1/2-1/2 — Maehrisch Ostrau
1939 — Konstantinopolsky, Alexander vs Reshevsky, Samuel — 1-0 — Leningrad RUS
1939 — Menchik, Vera vs Golombek, Harry — 1/2-1/2 — Montevideo URU
1942 — Kottnauer, Cenek vs Sajtar, Jaroslav — 1/2-1/2 — Chocen

7…a5 — 13.7% (287 parties)

1986 — Podgaets, Mikhail vs Okhotnik, Vladimir — 1-0 — UKR-ch Kiev UKR
1987 — Goldin, Alexander vs Kruppa, Yuri — 1-0 — Uzhgorod
1987 — Khasin, Alexander vs Melnikov, A — 1-0 — Kursk
1987 — Fokin, Sergey vs Khasin, Alexander — 1/2-1/2 — URS-FL Kursk
1988 — Kalinitschew, Sergey vs Heinig, Wolfram, Dr. — 1/2-1/2 — Berlin East

7…Nbd7 — 7.5% (158 parties)

1940 — Shainswit, George vs Woliston, Philip — 1-0 — New York, NY USA
1950 — De Souza Mendes, Joao vs Cruz Filho, Oswaldo — 1-0 — Rio de Janeiro BRA
1954 — Raizman, Maurice vs Blau, Max — 1-0 — Amsterdam olm
1963 — Zilber, Israel vs Solmanis, Zigfrids — 0-1 — Riga LAT
1963 — Bukhover, A vs Ivanenko, B — 1-0 — Kiev UKR

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