Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→g6, h7→g6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v1), ● e5 (2v1), ● g5 (2v0)	● b4 (2v0), ● f5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● e5 (2v1)	● d5 (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 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

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

Thèmes

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

D74d — Neo-Gruenfeld, 6.cxd5 Nxd5 7.O-O Na6

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O Na6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. e4 (Occuper le centre — 67 % des parties) ; Nc3 (Développer b1 — 31 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nb6 (75 % des parties) ; ...c5 (Frapper le centre adverse — 17 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1927 Kecskemet II – Round 9 – Szekely, Janos Ferenc – 0-1 – Gruenfeld, Ernst – G24 1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 O-O 7. O-O Na6 8. Nc3 c5 9. Nxd5 Qxd5 10. Be3 Qh5
1929 Karlsbad – Round 1 – Vidmar Milan – 1-0 – Tartakower, Savielly – G80 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Na6 8. e4 Nb6 9. Nc3 Bg4 10. d5 Qd7
1935 Warsaw ol – Round 4 – Vidmar, Milan Sr – 1/2-1/2 – Mikenas, Vladas – G13 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 O-O 7. O-O Na6 8. Nc3 c5 9. e4 Nxc3 10. bxc3 Qa5
1937 Trebitsch mem3738 – Round 11 – Podhorzer, David – 1/2-1/2 – Mueller, Hans – G40 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Na6 8. Qb3 Nb6 9. Rd1 Be6 10. Qa3 c6
1944 Ventnor City – Round 6 – Levin, Jerome A – 1-0 – Santasiere, Anthony – G16 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. cxd5 Nxd5 7. d4 Na6 8. e4 Nb6 9. Nc3 Bg4 10. d5 Qd7
1945 Novi Sad – Round 1 – Kulzinski, Nikolaj – 1/2-1/2 – Tsvetkov, Alexandar K – G18 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. Nf3 O-O 7. O-O Na6 8. e4 Nb6 9. h3 c5 10. d5 Bd7
1946 New York ch-USA – Round 1 – Di Camillo, Attilio – 0-1 – Reshevsky, Samuel – G50 1. Nf3 d5 2. d4 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. cxd5 Nxd5 7. O-O Na6 8. e4 Nb6 9. Nc3 Bg4 10. d5 Qd7
1946 USA Ch New York, NY USA – Round 1 – Denker, Arnold S – 1/2-1/2 – Santasiere, Anthony – G26 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. Nf3 O-O 7. O-O Na6 8. Nc3 c5 9. Nxd5 Qxd5 10. Be3 Qh5
1946 USA Ch New York, NY USA – Round 1 – Ulvestad, Olaf – 1-0 – Horowitz, Albert Israel – G22 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Na6 8. Nc3 c5 9. Nxd5 Qxd5 10. Be3 Qh5
1948 New York – Round 6 – Najdorf, Miguel – 1-0 – Kashdan, Isaac – G32 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 O-O 7. O-O Na6 8. e4 Nb6 9. Nc3 Bg4 10. d5 Qd7
1949 GER Ch 13th – Round 2 – Ahues, Carl – 1-0 – Carls, Carl – G4 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Na6 8. e4 Nb6 9. Nc3 Bg4 10. d5 Qd7
1950 Amsterdam ch-NED – Round 10 – Van Scheltinga, Theo – 1/2-1/2 – Cortlever, Nico – G43 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 O-O 7. O-O Na6 8. e4 Nb6 9. Nc3 Bg4 10. d5 Qd7
1950 Sorrento ch ITA – Round 12 – Giustolisi, Alberto – 1-0 – Paoli, Enrico – G30 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d5 6. cxd5 Nxd5 7. O-O Na6 8. Nc3 c5 9. Nxd5 Qxd5 10. Be3 Rd8
1951 New York ch-USA – Round 5 – Mengarini, Ariel – 1/2-1/2 – Santasiere, Anthony – G19 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 Na6 7. cxd5 Nxd5 8. e4 Nb6 9. a4 Bg4 10. a5 Nd7
1954 Belgrade – Round 4 – Pilnik, Herman – 1/2-1/2 – Joppen, Egon – G47 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Na6 8. e4 Nb6 9. h3 c5 10. d5 e6
1956 URS Ch sf – Round ? – Osnos, Viatcheslav – 1/2-1/2 – Goldberg, Grigory A – G56 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 O-O 7. O-O Na6 8. e4 Nb6 9. h3 c5 10. d5 f5
1957 Dallas – Round ? – Olafsson, Fridrik – 0-1 – Larsen, Bent Ravn – G59 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. cxd5 Nxd5 7. d4 Na6 8. e4 Nb6 9. a4 c5 10. a5 Nc4
1962 Candidats Tournament – Round 9 – Benko, Pal – 1-0 – Filip, Marius Liviu – G33 1. g3 Nf6 2. Bg2 d5 3. Nf3 g6 4. c4 Bg7 5. cxd5 Nxd5 6. O-O O-O 7. d4 Na6 8. Nc3 Nb6 9. b3 Nb4 10. Bb2 a5
1962 Varna olm – Round 6 – Bolbochan, J. – 1/2-1/2 – Malich, Burkhard, Dr. – G258 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 O-O 7. O-O Na6 8. Nc3 Nb6 9. Bf4 c5 10. dxc5 Nxc5
1965 Sinaia stud ol final – Round 1 – Spassov, Liuben – 1/2-1/2 – Watzka, Horst – G1 1. d4 Nf6 2. c4 d5 3. Nf3 g6 4. cxd5 Bg7 5. g3 O-O 6. Bg2 Nxd5 7. O-O Na6 8. e4 Nb6 9. Nc3 Bg4 10. d5 Qd7
1967 Leningrad RUS – Round 1 – Osnos, Viatcheslav – 1-0 – Zelevinsky, Vladimir – G7 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. cxd5 Nxd5 7. d4 Na6 8. e4 Nb6 9. Nc3 c5 10. d5 e6
1968 Bristol ch-BCF – Round 11 – Whiteley, Andrew Jonathan – 1-0 – Webb, Simon – G114 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 O-O 7. O-O Na6 8. e4 Nb6 9. Nc3 Bg4 10. d5 Qd7

D74d —

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O Na6

Les coups candidats

8.e4 — 58.4% (73 parties)

Ambassadeurs : Osnos, Viatcheslav (2x), Kharitonov, Andrei (2x), Zhelesny, Stanislav (2x), Mengarini, Ariel (1x), Santasiere, Anthony (1x), Olafsson, Fridrik (1x), Larsen, Bent Ravn (1x), Zalkind, Vladimir (1x)

8.Nc3 — 37.6% (47 parties)

Ambassadeurs : Hosek, Milan (2x), Aarush Hirendra Naik Parulekar (1x), Svancer, Bretislav (1x), Brinck-Claussen, Bjorn (1x), Floe Anton (1x), Giustolisi, Alberto (1x), Paoli, Enrico (1x), Benko, Pal (1x)

8.Qb3 — 3.2% (4 parties)

Ambassadeurs : Avrahami, Rami (1x), Carmel, Ephraim (1x), Szovan, Karoly (1x), Halasz, Csaba (1x), Dang Hoang Son (1x), Nguyen, Anh Khoi (1x), Gagunashvili, Merab (1x), Djokic, Mihailo (1x)

8.Bf4 — 0.8% (1 parties)

Ambassadeurs : Heemskerk, Wim (1x), Kanli, Kaan (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.e4	8.Nc3	8.Qb3	8.Bf4
<1800	5	20%	60%	20%	—
1800-2200	56	59%	38%	2%	2%
2200-2600	41	56%	39%	5%	—

Évolution par décennie (% des parties)

Décennie	N parties	8.e4	8.Nc3	8.Qb3	8.Bf4
1950s	7	86%	14%	—	—
1960s	11	55%	45%	—	—
1970s	7	43%	57%	—	—
1980s	7	86%	—	14%	—
1990s	28	75%	25%	—	—
2000s	24	46%	54%	—	—
2010s	34	50%	41%	6%	3%
2020s	7	43%	43%	14%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.e4	50%	43%	▼ -7.1%
8.Nc3	41%	43%	▲ +1.7%
8.Qb3	6%	14%	▲ +8.4%
8.Bf4	3%	0%	▼ -2.9%

Parties historiques

8.e4 — 58.4% (73 parties)

1950 — Cafferty, Bernard vs Smith, Frank H — 1-0 — ?
1950 — Bosch van Rosenthal, Edzard vs Cortlever, Nico — 1/2-1/2 — Amsterdam ch-NED
1951 — Mengarini, Ariel vs Santasiere, Anthony — 1/2-1/2 — New York ch-USA
1954 — Pilnik, Herman vs Joppen, Egon — 1/2-1/2 — Belgrade SRB
1956 — Osnos, Viatcheslav vs Goldberg, Grigory A — 1/2-1/2 — Leningrad RUS

8.Nc3 — 37.6% (47 parties)

1950 — Giustolisi, Alberto vs Paoli, Enrico — 1-0 — Sorrento ch ITA
1962 — Benko, Pal vs Filip, Miroslav — 1-0 — Curacao ct
1962 — Bolbochan, Jacobo vs Malich, Burkhard, Dr. — 1/2-1/2 — Varna olm
1965 — Brinck-Claussen, Bjorn vs Floe Anton — 0-1 — Denmark
1968 — Aarush Hirendra Naik Parulekar vs Svancer, Bretislav — 1-0 — corr ch12-TCH

8.Qb3 — 3.2% (4 parties)

1988 — Avrahami, Rami vs Carmel, Ephraim — 1/2-1/2 — Israel Masters
2013 — Szovan, Karoly vs Halasz, Csaba — 1/2-1/2 — HUN
2014 — Dang Hoang Son vs Nguyen, Anh Khoi — 0-1 — Taipa MAC
2022 — Gagunashvili, Merab vs Djokic, Mihailo — 1/2-1/2 — Belgrade SRB

8.Bf4 — 0.8% (1 parties)

2011 — Heemskerk, Wim vs Kanli, Kaan — 1-0 — Rogaska Slatina SLO

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