Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● f7→g6, h7→g6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v0)	● g4 (2v0), ● f5 (2v0)
Cases faibles	—	● d5
Centre	● d4 (3v1), ● e5 (2v0)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 9)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● 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

D25d — QGA: Smyslov, 5.Bxc4 Bg7 6.Nc3

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 g6 5.Bxc4 Bg7 6.Nc3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. O-O (Mettre le roi en sécurité, connecter les tours — 75 % des parties) ; e4 (Occuper le centre — 10 % des parties) ; h3 (Empêcher ...Bg4 — 8 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...O-O (Mettre le roi en sécurité, connecter les tours — 94 % des parties) ; ...Nfd7 (2 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1950 URS Ch sf – Round 6 – Lilienthal, Andor – 1/2-1/2 – Gusev, Aleksandr – G11 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. e4 Nfd7 8. h3 c6 9. O-O a5 10. a4 Na6
1951 Moskou ch-URS – Round 1 – Terpugov, Evgeny – 0-1 – Smyslov, Vladimir – G19 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Be2 Nb6 10. O-O Nc6
1953 Corr Golden Knights – Round ? – Young, Walter Will – 1-0 – Zalys, Ignas – G2 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. e4 Nfd7 8. Bf4 Nb6 9. Bb3 Bg4 10. d5 Na6
1953 Mar del Plata – Round 2 – Carvalho Da Costa, Fabiano – 1/2-1/2 – Bolbochan, J. – G41 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. h3 Nfd7 8. O-O Nb6 9. Bb3 a5 10. e4 Bd7
1954 Montreal Ch – Round 7 – Zalys, Ignas – 0-1 – Matthai, Heinz – G7 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. e4 Nfd7 8. Be3 Nb6 9. Be2 Bg4 10. Qd2 Nc6
1958 Riga Ch – Round 16 – Klasups, Karlis – 0-1 – Klavins, Janis – G30 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. e4 c5 8. dxc5 Qxd1+ 9. Kxd1 Na6 10. Bxa6 bxa6
1960 Leningrad ch-URS – Round 2 – Shamkovich, Leonid – 1/2-1/2 – Smyslov, Vladimir – G13 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. h3 a6 8. a4 c5 9. d5 Ne8 10. e4 Nd6
1961 Moscow – Round 1 – Cherepkov, Alexander V – 1/2-1/2 – Kholmov, Ratmir D – G2 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. e4 Nfd7 8. e5 c5 9. e6 Nb6 10. exf7+ Kh8
1962 Mar del Plata – Round 5 – Bielicki, Carlos – 0-1 – Smyslov, Vladimir – G52 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 g6 5. Bxc4 Bg7 6. Nc3 O-O 7. h3 Bf5 8. Qe2 Ne4 9. O-O Nd7 10. Rd1 Ndf6

D25d — QGA: Smyslov (1950)

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 g6 5.Bxc4 Bg7 6.Nc3

Les coups candidats

6…O-O — 90.5% (323 parties)

Ambassadeurs : Arsovic, Jelena (6x), Gheorghiu, Florin (5x), Barua, Dibyendu (4x), Zalys, Ignas (3x), Smyslov, Vasily (3x), Hladik, Josef (3x), Archer, Dave (2x), Matthai, Heinz (2x)

6…Nbd7 — 1.4% (5 parties)

Ambassadeurs : Ubeira Montenegro, Enrique (1x), Mantovano, Hector (1x), Dolle, Stephan (1x), Noering, Andreas (1x), Guyon, Florine (1x), Romain Delval, Emeline (1x), Perez De La Torre, Jorge (1x), Paz Mendez, German Christopher (1x)

6…c6 — 1.4% (5 parties)

Ambassadeurs : Restas, Peter (1x), Balogh, Sandor (1x), Gerry, Mccartney (1x), Wright, Kareem (1x), Richter, Gerald (1x), Leveikina, Jevgenija (1x), Rakic, Ivan (1x), Sunjerga, Ivan (1x)

6…c5 — 1.4% (5 parties)

Ambassadeurs : Zsinka, Laszlo (1x), Meszaros, Andras (1x), Bakshi, Rutuja (1x), Anigani Kavya (1x), Ugyan, Daniel (1x), Vodila, Martin Botond (1x), Thistlewood, Anthony (1x), Wakeham, Marc R. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…O-O	6…Nbd7	6…c6	6…c5
<1800	29	83%	7%	3%	—
1800-2200	97	89%	1%	2%	3%
2200-2600	102	95%	1%	1%	2%

Évolution par décennie (% des parties)

Décennie	N parties	6…O-O	6…Nbd7	6…c6	6…c5
1950s	24	100%	—	—	—
1960s	24	96%	—	—	—
1970s	16	100%	—	—	—
1980s	33	91%	3%	—	—
1990s	61	92%	—	3%	2%
2000s	105	90%	2%	2%	—
2010s	82	88%	1%	1%	4%
2020s	12	67%	8%	—	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…O-O	88%	67%	▼ -21.1%
6…Nbd7	1%	8%	▲ +7.1%
6…c6	1%	0%	▼ -1.2%
6…c5	4%	8%	▲ +4.7%

Parties historiques

6…O-O — 90.5% (323 parties)

1950 — Lilienthal, Andor vs Gusev, Aleksandr — 1/2-1/2 — Tula RUS
1951 — Terpugov, Evgeny vs Smyslov, Vasily — 0-1 — Moskou ch-URS
1952 — Ilivitsky, Georgy A vs Pasman, Marks — 1-0 — Riga LAT
1952 — Klaman, Konstantin Mikhailovich vs Taimanov, Mark — 1/2-1/2 — Leningrad RUS
1953 — Bonham, Reginald W vs Archer, Dave — 1-0 — Hastings ch-BCF

6…Nbd7 — 1.4% (5 parties)

1980 — Ubeira Montenegro, Enrique vs Mantovano, Hector — 1-0 — Los Polvorines
2004 — Dolle, Stephan vs Noering, Andreas — 0-1 — ?
2005 — Guyon, Florine vs Romain Delval, Emeline — 0-1 — France
2012 — Perez De La Torre, Jorge vs Paz Mendez, German Christopher — 1-0 — Tenerife
2025 — Gonzalez Culi, Diego vs Medero Mino, Leon — 1-0 — Foz do Iguacu BRA

6…c6 — 1.4% (5 parties)

1992 — Gerry, Mccartney vs Wright, Kareem — 1-0 — Ann Arbor Huron Valley
1998 — Restas, Peter vs Balogh, Sandor — 1-0 — HUN-chT29899
2005 — Rakic, Ivan vs Sunjerga, Ivan — 1-0 — Kastela
2008 — Richter, Gerald vs Leveikina, Jevgenija — 1-0 — Herne
2016 — Blondel, Francis vs Flecher, Joseph — 1/2-1/2 — ICCF

6…c5 — 1.4% (5 parties)

1995 — Zsinka, Laszlo vs Meszaros, Andras — 1-0 — Sarospatak
2013 — Bakshi, Rutuja vs Anigani Kavya — 1-0 — Al Ain
2016 — Ugyan, Daniel vs Vodila, Martin Botond — 0-1 — Hajduboszormeny HUN
2018 — Thistlewood, Anthony vs Wakeham, Marc R. — 0-1 — ICCF
2021 — Postny, Evgeny vs Spasic, Petar — 1-0 — Paracin SRB