D75c — Neo-Gruenfeld, 6.cxd5 Nxd5 7.O-O c5 8.Nc3 Nxc3

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O c5 8.Nc3 Nxc3 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte f4, case forte e5, case forte g5, paire de fous, colonne c.
Faiblesses adverses : Bc8 enfermé, knight c3 en prise, pawn c5 en prise.
Problèmes : Bc1 enfermé, Bg2 enfermé.
Plans :
● Be3 — Développer Bc1
● h3 — Empêcher ...Bg4
● Rc — Tour sur colonne c

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (3v2), case forte d4, case forte d5, case forte f5, Bg7 actif, paire de fous, colonne d.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Nbd7 — Développer Nb8
● ...Bg4 — Développer Bc8, clouer Nf3
● ...c4 — Rupture
● ...e6 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

D75c — Neo-Gruenfeld

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O c5 8.Nc3 Nxc3

Eval: [+0.23]

Les coups candidats

9.bxc3 — 99.7% (311 parties)

Ambassadeurs : Pirc, Vasja (4x), Jasnikowski, Zbigniew (4x), Euwe, Max (3x), Benko, Pal (3x), Najdorf, Miguel (2x), Bronstein, David I (2x), Radulescu, Mihai (2x), Milev, Zdravko (2x)

9.Qa4 — 0.3% (1 parties)

Ambassadeurs : Makarov, Marat (1x), Zilberstein, Valery I (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.bxc3	9.Qa4
<1800	5	100%	—
1800-2200	64	100%	—
2200-2600	166	99%	1%
2600+	10	100%	—

Évolution par décennie (% des parties)

Décennie	N parties	9.bxc3	9.Qa4
1920s	4	100%	—
1930s	3	100%	—
1940s	10	100%	—
1950s	9	100%	—
1960s	8	100%	—
1970s	7	100%	—
1980s	32	100%	—
1990s	45	98%	2%
2000s	61	100%	—
2010s	113	100%	—
2020s	20	100%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.bxc3	100%	100%	+0.0%
9.Qa4	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 3 parties
Alekhine, Alexander — 1 partie
Kasparov, Garry — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

9.bxc3 — 99.7% (311 parties)

1923 — Michell, Reginald vs Euwe, Max — 0-1 — Hastings ENG
1926 — Thomas, George Alan vs Euwe, Max — 0-1 — Weston ENG
1928 — Johner, Paul vs Alekhine, Alexander — 0-1 — Switzerland
1928 — Bogoljubow, Efim vs Euwe, Max — 0-1 — The Netherlands
1938 — Blumin, Boris vs Santasiere, Anthony — 0-1 — Boston, MA USA

9.Qa4 — 0.3% (1 parties)

1995 — Makarov, Marat vs Zilberstein, Valery I — 1/2-1/2 — St Petersburg RUS

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→g6, h7→g6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v1), ● g5 (2v0)	● d4 (3v2), ● d5 (2v0), ● f5 (2v0)
Cases faibles	—	—
Centre	● e5 (2v1)	● d4 (3v2), ● d5 (2v0), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

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

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5, ● e2-e3	● …c5-c4, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5

Partie
1923 Hastings2324 – Round 5 – Michell, Reginald – 0-1 – Euwe, Max – G20 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Nc6 10. e3 Qa5
1938 USA Ch fin-A – Round ? – Blumin, Boris – 0-1 – Santasiere, Anthony – G13 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. g3 O-O 6. cxd5 Nxd5 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Nc6 10. Be3 Qa5
1939 Buenos Aires ARG – Round 1 – Staahlberg, Gideon – 1-0 – Castillo Larenas, Mariano – G2 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Nf3 Bg7 6. Bg2 O-O 7. O-O c5 8. Nc3 Nxc3 9. bxc3 Nc6 10. e3 Qa5
1944 La Plata Jockey Club – Round 10 – Maderna, Carlos – 0-1 – Stahlberg, Gideon – G48 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. Nf3 O-O 7. O-O c5 8. Nc3 Nxc3 9. bxc3 Qa5 10. Qb3 Nc6
1947 Buenos Aires ch-ARG – Round 1 – Aguirre Ataulluco, Patrick Gian Pierre – 1-0 – Sanguinetti, Renato – G37 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. g3 O-O 6. cxd5 Nxd5 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Nc6 10. Be3 Qa5
1947 Buenos Aires ch-ARG – Round 1 – Benko, Francisco – 1-0 – Beretta, Alberto Luigi – G13 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O c5 8. d4 Nxc3 9. bxc3 Qa5 10. Qb3 Na6
1948 Budapest – Round 8 – Radulescu, Mihai – 1-0 – Benko, Pal – G43 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Nc6 10. Be3 Qa5
1948 Karlovy Vary – Round 10 – Pirc, Vasja – 1/2-1/2 – Stoltz, Gabriel – G106 1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 O-O 7. O-O c5 8. Nc3 Nxc3 9. bxc3 Nc6 10. e3 Qa5
1948 YUG Ch – Round 14 – Pirc, Vasja – 1-0 – Horvat, Rudolf – G21 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O c5 8. Nc3 Nxc3 9. bxc3 Nc6 10. e3 Be6
1949 Budapest-Moscow – Round 1 – Benko, Pal – 1/2-1/2 – Bronstein, David I – G7 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. d4 c5 6. c4 O-O 7. cxd5 Nxd5 8. Nc3 Nxc3 9. bxc3 Nc6 10. Be3 Be6
1949 Trencianske Teplice – Round 4 – Erdelyi, Sandor – 0-1 – Szabo, Ladislav – G25 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d5 6. cxd5 Nxd5 7. d4 c5 8. Nc3 Nxc3 9. bxc3 Nc6 10. Bb2 Qb6
1950 Mar del Plata – Round 1 – Alvarez Martin, Pedro – 0-1 – Pirc, Vasja – G8 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Nc6 10. e3 Be6
1950 Mar del Plata – Round 1 – Rossolimo, Nicolas – 1-0 – Michel, Pascal – G12 1. Nf3 Nf6 2. g3 g6 3. c4 Bg7 4. Bg2 O-O 5. O-O c5 6. d4 d5 7. cxd5 Nxd5 8. Nc3 Nxc3 9. bxc3 Nc6 10. Be3 Na5
1952 JUG Ch – Round 10 – Pirc, Vasja – 1/2-1/2 – Puc, Stojan – G66 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 c5 7. cxd5 Nxd5 8. Nc3 Nxc3 9. bxc3 Qa5 10. Bb2 Bd7
1952 Rio de Janeiro – Round 17 – Trifunovic, Petar – 1/2-1/2 – Engels, Ludwig – G98 1. Nf3 c5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Nc3 d5 7. cxd5 Nxd5 8. d4 Nxc3 9. bxc3 Nc6 10. Be3 cxd4
1953 Bucharest – Round 8 – Radulescu, Mihai – 0-1 – Milev, Zdravko – G82 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O d5 5. d4 O-O 6. c4 c5 7. cxd5 Nxd5 8. Nc3 Nxc3 9. bxc3 cxd4 10. Nxd4 Qa5
1953 Mar del Plata – Round 19 – Rossetto, Hector – 1/2-1/2 – Najdorf, Miguel – G178 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d5 6. cxd5 Nxd5 7. d4 c5 8. O-O Nxc3 9. bxc3 Nc6 10. Be3 cxd4
1954 Dyckhoff Memorial A 5456 – Round ? – Hayes, Christiaan – 0-1 – O'Kelly de Galway, Alberic – G7 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. g3 O-O 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Nc6 10. Bb2 Bg4
1954 Olympiad final A – Round 10 – Goode, Royal – 1/2-1/2 – Bobekov, Radko – G22 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Qa5 10. Qb3 cxd4
1957 Sombor – Round 16 – Gligorić, Svetozar – 1/2-1/2 – Cuderman, Vinko – G153 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. Nf3 O-O 7. O-O c5 8. Nc3 Nxc3 9. bxc3 Nc6 10. dxc5 Qa5
1960 BUL-ch14 Sofia BUL – Round 8 – Kolarov, Atanas S. – 1/2-1/2 – Milev, Zdravko – G28 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 O-O 5. O-O d5 6. cxd5 Nxd5 7. Nc3 c5 8. d4 Nxc3 9. bxc3 Nc6 10. e3 Be6
1962 LAT Ch – Round ? – Kampenuss Peteris – 0-1 – Suetin, Alexey S – G31 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. g3 O-O 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Nc6 10. Be3 cxd4
1968 Bamberg – Round 1 – Pfleger, Helmut, Dr. – 1/2-1/2 – Schmid, Leo – G25 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 O-O 7. O-O c5 8. d4 Nxc3 9. bxc3 Nc6 10. Be3 Be6
1968 Vinkovci – Round 1 – Matov, Mladen – 0-1 – Gheorghiu, Florin – G12 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O c5 8. d4 Nxc3 9. bxc3 Nc6 10. e3 Bf5
1972 Skopje ol (Men) fin-A – Round 8 – Huebner, Robert – 1/2-1/2 – Smejkal, Jan – G414 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Nc3 d5 7. cxd5 Nxd5 8. d4 Nxc3 9. bxc3 Nc6 10. Be3 cxd4
PCA Qualifiers 1993 – Round 11 – Romanishin, Oleg M – 1-0 – Benjamin, Joel – G182 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O Nxc3 9. bxc3 Nc6 10. Be3 cxd4
World Blitz 2015 – Round 13.41 – Hirneise, Tobias – 0-1 – Safarli, Elmir – G814 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 O-O 7. O-O c5 8. Nc3 Nxc3 9. bxc3 Be6 10. Ba3 cxd4
World Blitz 2017 – Round 4.30 – Fressinet, Laurent – 1/2-1/2 – Nepomniachtchi, Ian – G196 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. c4 Bg7 5. O-O O-O 6. cxd5 Nxd5 7. d4 c5 8. Nc3 Nxc3 9. bxc3 Nc6 10. Be3 Be6

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