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)	● f5 (2v0)
Cases faibles	—	—
Centre	● e4 (1v0)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Actif (mob. 5)
Bg7		● Bg7 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	5 (● b1, ● g1, ● 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	—	● …c7-c5, ● …e7-e5

D71a — Neo-Gruenfeld, 5.cxd5 Nxd5

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. e4 (Occuper le centre — 54 % des parties) ; Nf3 (Développer g1 — 39 % des parties) ; Nc3 (Développer b1 — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Nb6 (46 % des parties) ; ...O-O (Mettre le roi en sécurité, connecter les tours — 30 % des parties) ; ...Nb4 (19 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1939 Buenos Aires ol f-A – Round 14 – Fallet Kahn, Victor – 0-1 – Salas Romo, Julio – G271 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. a3 O-O 7. e4 Nb6 8. Ne2 c5 9. d5 e6 10. Nbc3 exd5
1943 UJCS-17.Kongress – Round 9 – Thelen, Bedrich – 0-1 – Sajtar, Jaroslav – G42 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 O-O 7. Qb3 Nb6 8. O-O Be6 9. Qc2 Nc6 10. Rd1 Nb4
1944 URS Ch sf – Round 9 – Zagoriansky, Evgeny – 0-1 – Lisitsin, Georgy – G6 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. Qb3 Nb6 7. e3 O-O 8. Nc3 N8d7 9. Nge2 c5 10. O-O cxd4
1947 Chigorin Memorial – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Ragozin, Viacheslav – G32 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 c6 7. O-O Nd7 8. e4 Nc7 9. Nc3 O-O 10. Be3 Nb6
1957 New York ch-USA – Round 7 – Reshevsky, Samuel – 1/2-1/2 – Bernstein, Sidney – G40 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 Nb6 7. e4 c5 8. d5 e6 9. O-O O-O 10. Bg5 f6
1958 Wageningen Caldex – Round 4 – Donner, Jan-Hein – 1-0 – Bouwmeester, Hans – G8 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 Nb6 7. a4 a5 8. Nc3 Nc6 9. Nb5 O-O 10. O-O Bg4
1961 Bled – Round 1 – Najdorf, Miguel – 1-0 – Olafsson, Fridrik – G14 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 Nb6 7. O-O Nc6 8. e3 e5 9. Nc3 exd4 10. Nxd4 Nxd4
36. Olympiad 2004 – Round 12 – Sasikiran, Krishnan – 1/2-1/2 – Sutovsky, Emil – G423 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 c5 7. e4 Nb6 8. d5 Bg4 9. h3 Bxf3 10. Qxf3 O-O
6. World Blitz 2010 – Round 7.6 – Mamedyarov, Shakhriyar – 1-0 – Nepomniachtchi, Ian – G44 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 O-O 7. Nc3 Nb6 8. Bf4 Be6 9. O-O Nc6 10. e3 h6
World Blitz 2017 – Round 7.25 – Vidit, Santosh Gujrathi – 0-1 – Savchenko, Boris – G356 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Bg7 5. Bg2 Nxd5 6. Nf3 Nb6 7. Nc3 Nc6 8. e3 e5 9. d5 Ne7 10. e4 c6
World Blitz 2019 – Round 13.22 – Gelfand, Boris – 0-1 – Sychev, Klementy – G867 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. Nf3 Nb6 7. O-O Nc6 8. e3 e5 9. Nc3 exd4 10. exd4 O-O
World Rapid 2016 – Round 4.6 – Inarkiev, Ernesto – 0-1 – Li, Chao – G163 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 c5 7. dxc5 Qa5+ 8. Nbd2 O-O 9. O-O Qxc5 10. Nb3 Qd6

D71a —

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5

Les coups candidats

6.Nf3 — 48.0% (2454 parties)

Ambassadeurs : Allawi Rawlings (19x), Ftacnik, Lubomir (15x), Kempinski, Robert (13x), Reefschlaeger, Helmut, Dr. (10x), Gleyzer, Leonid (9x), Percivaldi, Martin (9x), Hollands, George E (8x), Olafsson, Fridrik (7x)

6.e4 — 46.7% (2386 parties) →

Ambassadeurs : Ilincic, Zlatko (68x), Jirka, Jiri (28x), Tregubov, Pavel V. (24x), Grabarczyk, Miroslaw (17x), Ftacnik, Lubomir (17x), Plat, Vojtech (14x), Donner, Jan-Hein (13x), Horvath, Peter (11x)

6.Nc3 — 4.9% (251 parties) →

Ambassadeurs : Paluch, Andrzej (3x), Bielicki, Carlos (2x), Honfi, Karoly (2x), Korchnoi, Viktor (2x), Smejkal, Jan (2x), Peschlow, Patrick, Dr. (2x), Jaunooby, Ali R (2x), Volodin, Viktor (2x)

6.e3 — 0.3% (14 parties)

Ambassadeurs : Kula, Robert (2x), Knuth, G. (1x), Bross, Horst (1x), Almeida, Rafael da Paz (1x), Almeida, Rui Fernando Dos Santo (1x), Vazquez Matos, Adolfo Antonio (1x), Alvarez Leyva, Harold (1x), Rudhart, Michael (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Nf3	6.e4	6.Nc3	6.e3
<1800	165	46%	45%	7%	2%
1800-2200	1492	52%	41%	7%	0%
2200-2600	2703	47%	50%	3%	0%
2600+	178	52%	44%	3%	1%

Évolution par décennie (% des parties)

Décennie	N parties	6.Nf3	6.e4	6.Nc3	6.e3
1950s	157	33%	62%	4%	—
1960s	114	57%	38%	5%	—
1970s	128	48%	45%	7%	—
1980s	239	47%	45%	6%	1%
1990s	509	33%	59%	8%	—
2000s	971	29%	66%	5%	0%
2010s	2349	60%	35%	5%	0%
2020s	646	46%	51%	3%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Nf3	60%	46%	▼ -14.9%
6.e4	35%	51%	▲ +16.3%
6.Nc3	5%	3%	▼ -1.4%
6.e3	0%	0%	+0.3%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 9 parties
Ju, Wenjun — 9 parties
Karpov, Anatoly — 8 parties
Carlsen, Magnus — 6 parties
Anand, Viswanathan — 4 parties
Botvinnik, Mikhail — 2 parties
Ding, Liren — 2 parties
Kramnik, Vladimir — 1 partie

Parties historiques

6.Nf3 — 48.0% (2454 parties)

1950 — Acoltzi Ruiz, Mariana vs Gligorić, Svetozar — 0-1 — Mar del Plata ARG
1950 — Matanovic, Aleksandar vs Pilnik, Herman — 0-1 — Bled SLO
1950 — Wade, Robert G vs Pachman, Ludek — 0-1 — Venice ITA
1950 — Bosch van Rosenthal, Edzard vs Cortlever, Nico — 1/2-1/2 — Amsterdam ch-NED
1950 — Henneberke, Frans vs Collet, Hugo — 1-0 — It Beverwijk NED

6.e4 — 46.7% (2386 parties)

1950 — Bobekov, P. vs Filip, Miroslav — 1/2-1/2 — Prague CZE
1950 — Beni, Alfred vs Soluch, Leopold — 1-0 — Vienna AUT
1950 — Bolbochan, Jacobo vs Rossetto, Hector — 1/2-1/2 — Mar del Plata ARG
1950 — Collet, Hugo vs Weichselbaumer, Ernst — 1-0 — Saarbruecken
1950 — Salm, Maxwell vs Bostrom, R — 1-0 — Queensland ch

6.Nc3 — 4.9% (251 parties)

1950 — Bonham, R.W vs Wood, Beau — 1-0 — England
1950 — Smyslov, Vasily vs Suetin, Alexey S — 1-0 — Moskou ch-URS
1952 — Ilivitsky, Georgy A vs Korchnoi, Viktor — 0-1 — Moskou ch-URS
1952 — Levenfish, Grigory vs Spassky, Boris V. — 1/2-1/2 — Leningrad RUS
1952 — Makarczyk, Kazimierz vs Milev, Zdravko — 1/2-1/2 — Miedzyzdroje

6.e3 — 0.3% (14 parties)

1987 — Knuth, G. vs Bross, Horst — 1-0 — Oberhausen
1988 — Almeida, Rafael da Paz vs Kula, Robert — 1-0 — Arnhem ech-jr
1988 — Almeida, Rui Fernando Dos Santo vs Kula, Robert — 1-0 — Arnhem Ech-jr
2006 — Rudhart, Michael vs Schneider, Michael — 0-1 — Ditzingen
2009 — Vazquez Matos, Adolfo Antonio vs Alvarez Leyva, Harold — 1/2-1/2 — Havana CUB