D25e — QGA: Smyslov, 5.Bxc4 Bg7 6.O-O O-O

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 g6 5.Bxc4 Bg7 6.O-O O-O * ○ 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 d4, case forte e5, Bc4 actif, paire de fous, colonne c.
Faiblesses adverses : Bg7 enfermé, Bc8 enfermé.
Problèmes : Bc1 enfermé, 3 pièces non développées (B1, C1, A1).
Plans :
● Nc3 — Développer Nb1
● Bd2 — 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 g4, case forte d5, case forte f5, paire de fous, colonne d.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Bg7 enfermé, Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Nbd7 — Développer Nb8
● ...Bg4 — Développer Bc8, clouer Nf3
● ...c6 — Rupture
● ...c5 — Rupture
● ...e6 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

D25e — Smyslov

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 g6 5.Bxc4 Bg7 6.O-O O-O

Eval: [+0.76]

Les coups candidats

7.Nc3 — 78.7% (505 parties) →

Ambassadeurs : Najer, Evgeniy (16x), Vasquez Anabalon, Fernando (13x), Rossetto, Hector (7x), Gheorghiu, Florin (6x), Barua, Dibyendu (6x), Karpeshov, Oleg (6x), Plater, Kazimierz (4x), Ushenina, Anna (4x)

7.b4 — 6.4% (41 parties)

Ambassadeurs : Sandor, Bela (3x), Stahlberg, Gideon (2x), Raizman, Maurice (2x), Kaenel, Hansjuerg (2x), Epishin, Vladimir (2x), Meister, Jakob (2x), Fuderer, Andrija (1x), Portisch, Lajos (1x)

7.Qe2 — 5.1% (33 parties)

Ambassadeurs : Rossetto, Hector (2x), Schtalberg G (1x), Bronstein, David I (1x), Harrow, Martin (1x), Turner, Abe J (1x), Angulo Castillo, Francisco (1x), Boudy Bueno, Julio Leonardo (1x), Muering V (1x)

7.h3 — 4.2% (27 parties)

Ambassadeurs : Malich, Burkhard, Dr. (2x), Shushpanov, Vladimir (2x), Gheorghiu, Florin (1x), Ghitescu, Theodor (1x), Weill, Roland (1x), Atanasov, Petko (1x), Soos, Balint (1x), Pilnik, Herman (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Nc3	7.b4	7.Qe2	7.h3
<1800	15	100%	—	—	—
1800-2200	99	90%	3%	2%	4%
2200-2600	295	77%	8%	4%	6%
2600+	16	62%	6%	6%	6%

Évolution par décennie (% des parties)

Décennie	N parties	7.Nc3	7.b4	7.Qe2	7.h3
1940s	3	100%	—	—	—
1950s	74	58%	11%	18%	1%
1960s	49	82%	2%	8%	8%
1970s	28	75%	7%	—	4%
1980s	55	78%	4%	5%	7%
1990s	100	73%	6%	3%	9%
2000s	184	82%	8%	3%	3%
2010s	133	87%	5%	3%	2%
2020s	16	94%	6%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Nc3	87%	94%	▲ +6.5%
7.b4	5%	6%	▲ +1.7%
7.Qe2	3%	0%	▼ -3.0%
7.h3	2%	0%	▼ -2.3%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 3 parties
Tal, Mikhail — 2 parties
Euwe, Max — 1 partie
Karpov, Anatoly — 1 partie
Karpov, Aleksandr — 1 partie
Botvinnik, Mikhail — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

7.Nc3 — 78.7% (505 parties)

1941 — Guimard, Carlos E vs Salas Romo, Julio — 1-0 — Sao Paulo BRA
1941 — Guimard, Carlos E vs Acevedo Salas, Miguel — 1-0 — Sao Paolo
1947 — Fine, Reuben vs Horowitz, Albert Israel — 1/2-1/2 — Los Angeles, CA USA
1952 — Evans, Larry vs Smyslov, Vasily — 0-1 — Helsinki FIN
1952 — Evans Lianda vs Smyslov, Vladimir — 0-1 — Helsinki FIN

7.b4 — 6.4% (41 parties)

1954 — Stahlberg, Gideon vs Raizman — 1/2-1/2 — Amsterdam ol-p
1954 — Staahlberg, Gideon vs Raizman, Maurice — 1/2-1/2 — Amsterdam NED
1954 — Stahlberg, Gideon vs Raizman, Maurice — 1/2-1/2 — Amsterdam ol
1955 — Balanel, Ion vs Dely, Peter — 0-1 — Erfurt GER
1956 — Portisch, Lajos vs Sandor, Bela — 1/2-1/2 — Budapest HUN

7.Qe2 — 5.1% (33 parties)

1952 — Pasman Marks vs Koblencs, Alexander — 1/2-1/2 — Riga LAT
1952 — Udovcic, Mijo vs Milic, Borislav — 1-0 — Belgrade SRB
1953 — Steinberg Daniv, Eliyahu vs Rossetto, Hector — 0-1 — Bariloche
1954 — Bertholdt, Dieter vs Hampel, Johannes — 1-0 — Schkopau
1954 — Bombardo Schroder, Liam vs Cruz, Walter — 1-0 — Mar del Plata ARG

7.h3 — 4.2% (27 parties)

1956 — Pilnik, Herman vs Jauregui, Carlos — 1-0 — Paris FRA
1966 — Gheorghiu, Florin vs Ghitescu, Theodor — 1-0 — Bucharest ROU
1966 — Malich, Burkhard, Dr. vs Soos, Balint — 1/2-1/2 — Havana CUB
1968 — Weill, Roland vs Atanasov, Petko — 0-1 — Ybbs
1968 — Malich, Burkhard, Dr. vs Packroff, Hermann — 1-0 — Weimar

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● f7→g6, h7→g6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (3v1), ● e5 (2v0)	● g4 (2v0), ● d5 (2v1), ● f5 (2v0)
Cases faibles	—	—
Centre	● d4 (3v1), ● e5 (2v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 8)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn f7
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	semi-ouvert
Ruptures	● d4-d5, ● e3-e4	● …c7-c6, ● …c7-c5, ● …e7-e6, ● …e7-e5

Partie
1952 Hungary Ch – Round 17 – Kluger, Gyula – 1-0 – Florian, Tibor – G100 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Nbd2 Nfd7 8. Ne4 Nb6 9. Bb3 a5 10. a4 Bf5
1952 JUG Ch – Round 9 – Udovcic, Mijo – 1-0 – Milic, Borislav – G53 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 Nc6 10. Nc3 Bg4
1953 Bariloche – Round 1 – Steinberg Daniv, Eliyahu – 0-1 – Rossetto, Hector – G3 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 Nc6 10. Nc3 a5
1953 Budapest ch-HUN – Round 1 – Kluger, Gyula – 1/2-1/2 – Sandor, Balazs – G5 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Nbd2 Ne8 8. a3 Nd6 9. Ba2 Nc6 10. Bd5 Bd7
1953 HUN Ch Budapest HUN – Round 1 – Laszlo, Csaba – 1/2-1/2 – Barcza, Gedeon – G39 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b3 c5 8. Bb2 cxd4 9. Qxd4 Nc6 10. Qxd8 Rxd8
1954 Amsterdam olm – Round 1 – Staahlberg, Gideon – 1/2-1/2 – Raizman, Maurice – G25 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b4 a5 8. b5 Nbd7 9. Bb2 Nb6 10. Bb3 a4
1954 DDR Ch U20 – Round 12 – Bertholdt, Dieter – 1-0 – Hampel, Johannes – G55 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 a5 10. a3 a4
1954 Mar del Plata – Round 13 – Bombardo Schroder, Liam – 1-0 – Cruz, Walter – G101 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 a5 10. a4 Nc6
1955 Erfurt – Round 7 – Balanel, Ion – 0-1 – Dely, Peter – G42 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b4 Bg4 8. Bb2 Nfd7 9. h3 Bxf3 10. Qxf3 Nc6
1955 Long Beach US-open – Round 7 – Pafnutieff, Vladimir – 0-1 – Steiner, Herman – G26 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qb3 Nfd7 8. Bd2 a5 9. Bc3 Nb6 10. Nbd2 Nxc4
1955 Manhattan CC Ch 5556 – Round 4 – Harrow, Martin – 1-0 – Turner, Abe J – G17 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Nf3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 a5 10. a3 a4
1955 Zittau-A 5th – Round 6 – Golz, Werner – 1-0 – Franz, Joachim – G21 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 a6 8. Rd1 c5 9. dxc5 Nfd7 10. Nc3 Qa5
1956 Alekhine Memorial – Round 1 – Schtalberg G – 1/2-1/2 – Bronstein, David I – G26 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 g6 5. Nf3 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 Bg4 10. Nbd2 e6
1956 Budapest Alekhine – Round 1 – Portisch, Lajos – 1/2-1/2 – Sandor, Bela – G13 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b4 a5 8. b5 c5 9. bxc6 Nxc6 10. Ba3 Ne4
1956 Budapest Szikra – Round ? – Kluger, Gyula – 1/2-1/2 – Sandor, Bela – G12 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b4 c6 8. Bb2 Nbd7 9. Qe2 Nb6 10. Bb3 Nbd5
1956 Dublin – Round 6 – Golombek, Harry – 1-0 – Dunphy, William – G15 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 Bd7 10. Nc3 Nc6
1956 Moscow olm fin-B – Round 5 – Muhring, J. – 1-0 – Jauregui, Carlos – G47 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 Bg4 10. h3 Bxf3
1957 HUN-JUG m – Round ? – Fuderer, Andrija – 1/2-1/2 – Sandor, Bela – G2 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b4 c6 8. Bb2 Nbd7 9. Nc3 Nb6 10. Bb3 Nbd5
1957 URS Ch, semi final – Round 1 – Bagirov, Vladimir – 1-0 – Kalashian, Loris – G22 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b4 b6 8. Bb2 Bb7 9. Nbd2 Nbd7 10. Rc1 a5
1960 New York ch-USA – Round 2 – Weinstein, Raymond – 1/2-1/2 – Seidman, Herbert – G6 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 c5 8. d5 b5 9. Bxb5 Qxd5 10. Nc3 Qh5
1961 Stockholm SWE – Round 7 – Book, Eero – 1-0 – Lundin, Erik – G11 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b4 Nfd7 8. Bb2 a6 9. Qb3 Nb6 10. Be2 Nc6
1962 Belgrade – Round 4 – Foguelman, Alberto – 1-0 – Rossetto, Hector – G21 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Qe2 Nfd7 8. Rd1 Nb6 9. Bb3 Nc6 10. h3 a5
1962 Varna olm – Round 4 – Blau, Max – 1/2-1/2 – Olafsson, Fridrik – G123 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d5 6. c4 dxc4 7. Bxc4 c5 8. Nc3 Nbd7 9. b3 cxd4 10. Nxd4 Ne5
1966 Bucharest – Round 10 – Gheorghiu, Florin – 1-0 – Ghitescu, Theodor – G40 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. h3 c5 8. Nc3 cxd4 9. Nxd4 Nc6 10. Nxc6 bxc6
1966 La Habana olm fin-A – Round 11 – Malich, Burkhard, Dr. – 1/2-1/2 – Soos, Balint – G200 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. h3 Nfd7 8. Nc3 Nb6 9. Bb3 Nc6 10. a4 a5
1968 DDR Ch 17th – Round 18 – Malich, Burkhard, Dr. – 1-0 – Packroff, Hermann – G20 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. h3 c5 8. Qe2 cxd4 9. exd4 Nbd7 10. Bf4 Nb6
Karpov - Korchnoi Candidates Final 1974 – Round 24 – Karpov, Anatoly – 1/2-1/2 – Korchnoi, Viktor – G4 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. b3 c6 8. Bb2 Bg4 9. Nbd2 Nbd7 10. h3 Bf5

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