Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● e6→d5, f7→e6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Ok (mob. 2)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 1)
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	—	● …e6-e5

D77b — Neo-Gruenfeld, 6.O-O e6

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O e6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nc3 (Développer b1 — 50 % des parties) ; Qc2 (24 % des parties) ; cxd5 (Capture en d5, Occuper le centre — 10 % des parties) ; b3 (Préparer le fianchetto — 8 % des parties) ; Nbd2 (Développer b1 — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...c6 (Renforcer le centre — 32 % des parties) ; ...b6 (Préparer le fianchetto — 21 % des parties) ; ...Nc6 (Développer b8 — 13 % des parties) ; ...Nbd7 (Développer b8 — 10 % des parties) ; ...dxc4 (Capture en c4, Frapper le centre adverse — 8 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1944 Mar del Plata – Round 2 – Najdorf, Miguel – 1-0 – Iliesco, Juan – G26 1. d4 Nf6 2. c4 g6 3. g3 d5 4. Nf3 Bg7 5. Bg2 O-O 6. O-O e6 7. Nc3 b6 8. cxd5 exd5 9. Bf4 Bb7 10. Rc1 c6
1949 Trencianske-Teplice – Round 12 – Erdelyi, Stefan – 1/2-1/2 – Ojanen, Kaarle S – G54 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 e6 7. Qc2 b6 8. Rd1 Bb7 9. Ne5 c6 10. Nc3 Nbd7
1950 Dubrovnik olm – Round 7 – Euwe, Max – 0-1 – Book, Eero – G99 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 O-O 5. O-O d5 6. d4 e6 7. b3 b6 8. Ba3 Re8 9. Nbd2 Bb7 10. Rc1 Nbd7
1955 URS Ch sf – Round ? – Suetin, Alexey S – 1/2-1/2 – Boleslavsky, Isaac – G7 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. O-O O-O 6. c4 e6 7. cxd5 exd5 8. Nc3 Ne4 9. Ne5 Nxc3 10. bxc3 Nc6
1956 CSR Ch sf – Round 14 – Zita, Frantisek – 1/2-1/2 – Cernik, Frantisek – G39 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 e6 7. Nbd2 c6 8. Qc2 Nbd7 9. b3 Re8 10. Bb2 b6
1956 Moskou olm – Round 1 – Reilly, Brian – 1-0 – Campomanes, Florencio – G51 1. d4 Nf6 2. Nf3 e6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 d5 7. Nc3 c6 8. b3 Nbd7 9. Bb2 b6 10. cxd5 exd5
1957 Gotha – Round 1 – Filip Comes, Alvaro – 0-1 – Bronstein, David I – G10 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. c4 e6 7. Nc3 Nc6 8. b3 b6 9. Bb2 Bb7 10. Rc1 Rc8
1958 HUN Ch 14th – Round 7 – Forintos, Gyozo V – 1/2-1/2 – Varnusz, Egon – G17 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O d5 5. d4 O-O 6. c4 e6 7. Nc3 b6 8. cxd5 exd5 9. Ne5 Bb7 10. Qa4 Ne4
1964 Tel Aviv olm fin-A – Round 3 – Schweber, Samuel – 1/2-1/2 – Aloni, Itzchak – G52 1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O e6 7. Nc3 c6 8. Qd3 b6 9. b3 Bb7 10. Ba3 Re8
1965 HUN-ch21 – Round 1 – Koberl, Ferenc – 0-1 – Portisch, Lajos – G1 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 g6 5. O-O Bg7 6. d4 O-O 7. Qc2 Nbd7 8. b3 b6 9. Nc3 Bb7 10. cxd5 Nxd5
1969 Rhyl ch-BCF – Round 3 – Lees, David – 1/2-1/2 – Thomas, Richard Huw – G29 1. d4 Nf6 2. c4 g6 3. Nf3 d5 4. g3 Bg7 5. Bg2 O-O 6. O-O e6 7. Nc3 b6 8. b3 Bb7 9. Ba3 Re8 10. Rc1 a6
FIDE World Cup 2019 – Round 3.2 – Grischuk, Alexander – 1-0 – Xu, Xiangyu – G316 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. b3 Nc6 8. Bb2 b6 9. Nbd2 Bb7 10. Rc1 Ne7
TCh-RUS 2008 – Round 2 – Tregubov, Pavel V. – 1/2-1/2 – Mamedyarov, Shakhriyar – G45 1. d4 g6 2. Nf3 Nf6 3. c4 Bg7 4. g3 e6 5. Bg2 d5 6. O-O O-O 7. Nbd2 b6 8. b4 Bb7 9. Ba3 Re8 10. Rc1 Nbd7
World Blitz 2015 – Round 16.44 – Bluebaum, Matthias – 0-1 – Grandelius, Nils – G1009 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 g6 5. Nf3 Bg7 6. O-O O-O 7. Qc2 Na6 8. Rd1 b6 9. Nc3 Bb7 10. Ne5 c5
World Blitz 2015 – Round 17.27 – Eljanov, Pavel – 1-0 – Grandelius, Nils – G1050 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 Nbd7 8. b3 b6 9. cxd5 exd5 10. Bb2 Bb7
World Blitz 2019 – Round 13.4 – Duda, Jacob – 1-0 – Quparadze, Giga – G884 1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. O-O g6 5. c4 Bg7 6. d4 O-O 7. Nc3 c6 8. b3 b6 9. Bb2 Bb7 10. Rc1 Nbd7
World Blitz 2019 – Round 13.42 – Fridman, Daniel – 1-0 – Timofeev, Artyom – G887 1. Nf3 d5 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. c4 e6 7. Nc3 b6 8. Ne5 Bb7 9. Bg5 h6 10. Bxf6 Bxf6
World Blitz 2019 – Round 3.37 – Le, Quang Liem – 0-1 – Timofeev, Artyom – G186 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Qc2 b6 8. cxd5 exd5 9. Bf4 c5 10. Rd1 Bf5
World Blitz 2019 – Round 5.31 – Sargissian, Gabriel – 0-1 – Sethuraman, S.P. – G332 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Qc2 c6 8. Rd1 b6 9. Nc3 Bb7 10. e4 Nxe4

D77b —

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O e6

Les coups candidats

7.Nc3 — 52.7% (590 parties)

Ambassadeurs : Wang, Chen (17x), Matnadze Bujiashvili, Ann (13x), Narciso Dublan, Marc (7x), Gaprindashvili, Nona (4x), Mista, Aleksander (3x), Pigusov, Evgeny (2x), Troyke, Christian (2x), Binding, Frank (2x)

7.Qc2 — 27.8% (311 parties)

Ambassadeurs : Wang, Chen (7x), Matnadze Bujiashvili, Ann (5x), Gaprindashvili, Nona (3x), Belus, Benjamin (2x), Flick, Antoine (2x), Anwesh, Upadhyaya (2x), Tsifanskaya, Ludmila A (2x), Straka, Jozef (2x)

7.Nbd2 — 6.0% (67 parties)

Ambassadeurs : Rotariu, Gheorghe S (2x), Kachiani-Gersinska, Ketino (2x), Al Husari, Zita Fatima (1x), Cernik, Frantisek (1x), Vadasz, Laszlo (1x), Zeitlein, Michael (1x), Pedersen, Jens Otto (1x), Bergstrom, Christer (1x)

7.b3 — 5.1% (57 parties)

Ambassadeurs : Book, Eero (2x), Kasanen, Juha (1x), George, Peter M (1x), Eken, Max (1x), Alon, Levi (1x), Rantalainen, Seppo (1x), Kanko, Ilkka (1x), Wall, Alejandro (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Nc3	7.Qc2	7.Nbd2	7.b3
<1800	107	52%	27%	2%	9%
1800-2200	504	51%	27%	7%	6%
2200-2600	339	54%	35%	6%	1%
2600+	13	38%	46%	8%	8%

Évolution par décennie (% des parties)

Décennie	N parties	7.Nc3	7.Qc2	7.Nbd2	7.b3
1950s	8	62%	—	12%	12%
1960s	8	50%	12%	—	12%
1970s	11	64%	18%	9%	9%
1980s	37	46%	30%	11%	5%
1990s	138	57%	18%	4%	8%
2000s	234	50%	24%	6%	8%
2010s	513	53%	31%	6%	3%
2020s	170	51%	34%	5%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Nc3	53%	51%	▼ -2.2%
7.Qc2	31%	34%	▲ +3.1%
7.Nbd2	6%	5%	▼ -1.1%
7.b3	3%	4%	+0.2%

Joueurs célèbres

Champions du monde dans cette position

Ding, Liren — 2 parties
Ju, Wenjun — 1 partie

Parties historiques

7.Nc3 — 52.7% (590 parties)

1954 — Hecker, Erwin vs Juergens, Norbert — 1-0 — Lemgo
1955 — Sorensen, Victor vs Martins, Poul — 0-1 — Copenhagen DEN
1956 — Reilly, Brian vs Campomanes, Florencio — 1-0 — Moskou olm
1957 — Filip, Miroslav vs Bronstein, David I — 0-1 — Gotha GER
1958 — Forintos, Gyozo V vs Varnusz, Egon — 1/2-1/2 — Budapest HUN

7.Qc2 — 27.8% (311 parties)

1965 — Koberl, Ferenc vs Portisch, Lajos — 0-1 — Budapest HUN
1978 — Mariotti, Sergio vs Dominguez Sanz, Juan Pedro — 1-0 — Las Palmas ESP
1978 — Visier Segovia, Fernando vs Haritver, L. — 1-0 — Montilla Moriles
1981 — Chen, De vs Watai, Miyoko — 1-0 — Hangzhou
1984 — Johansen, Darryl K vs Crouch, Colin S — 1-0 — London, County Hall

7.Nbd2 — 6.0% (67 parties)

1956 — Al Husari, Zita Fatima vs Cernik, Frantisek — 1/2-1/2 — Chomutov
1979 — Vadasz, Laszlo vs Zeitlein, Michael — 1/2-1/2 — Trnava SVK
1986 — Pedersen, Jens Otto vs Rotariu, Gheorghe S — 1/2-1/2 — corr DDR jub
1989 — Bergstrom, Christer vs Engqvist, Thomas — 1/2-1/2 — Sundsvall
1989 — Dezaele, Christophe vs Ley, Gerard — 1-0 — Urcuit

7.b3 — 5.1% (57 parties)

1950 — Eken, Max vs Book, Eero — 0-1 — Dubrovnik olm
1965 — Kasanen, Juha vs George, Peter M — 1/2-1/2 — Sinaia
1978 — Kanko, Ilkka vs Book, Eero — 1/2-1/2 — Helsinki FIN
1980 — Alon, Levi vs Rantalainen, Seppo — 1-0 — Noordwijkerhout
1982 — Wall, Alejandro vs Gilmore, Jerry — 1-0 — Dayton, OH USA

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