Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	● b4 (2v0), ● d4 (2v1), ● g4 (2v0)
Cases faibles	● e4	● d5
Centre	—	● d4 (2v1), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 7)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (● c1, ● f1, ● a1, ● h1)	4 (● c8, ● f8, ● 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	fermé
Ruptures	● d2-d4	—

C47f — Four Knights: Glek, 4…d5

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.g3 d5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. exd5 (Capture en d5, Occuper le centre — 99 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Position équilibrée.

Avantages

Faiblesses

Diagonale active

Plans

Partie
1923 Karlsbad – Round 14 – Nimzowitsch, Aron – 0-1 – Gruenfeld, Ernst – G131 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. d3 Bg4 10. h3 Bd7
FIDE World Rapid 2014 – Round 10.31 – Glek, Igor – 1-0 – Kasimdzhanov, Rustam – G231 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Be7 8. O-O O-O 9. Re1 Bf6 10. Rb1 Re8
FIDE-Wch k.o. 1997 – Round 1.5 – Shaked, Tal – 1-0 – Morovic Fernandez, Ivan – G50 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. Rb1 Rb8 10. d4 h6
Geneva Masters KO 2013 – Round 2.1 – Mamedyarov, Shakhriyar – 1-0 – Kramnik, Vladimir – G9 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bc5 8. O-O O-O 9. Re1 Bb6 10. d3 Re8
Lindores Abbey Tal Memorial 2021 – Round 1.47 – Bivol, Alina – 0-1 – Pichot, Alan – G42 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. Rb1 Rb8 10. d4 exd4
Reykjavik ISL, 22th Open 2006 – Round 9 – Svidler, Peter – 1-0 – Svidler, Peter – G48 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. d3 Bg4 10. Qe1 Qd7
World Blitz 2015 – Round 9.50 – Safarli, Elmir – 1-0 – Godena, Michele – G570 1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. Re1 h6 10. Rb1 Rb8
World Blitz 2016 – Round 1.13 – Amonatov, Farrukh – 1-0 – Lalit Babu M R – G6 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. d3 Bg4 10. h3 Bh5
World Blitz 2016 – Round 15.42 – Atabayev, Yusup – 1/2-1/2 – Adhiban, B. – G614 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Be7 8. O-O O-O 9. Rb1 Rb8 10. d3 Bg4
World Blitz 2023 – Round 2.16 – Kaufman, David – 0-1 – Aditya Tari – G86 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. d3 h6 10. Nd2 Be6
World Rapid 2016 – Round 10.9 – Amonatov, Farrukh – 1/2-1/2 – Tomashevsky, Evgeny – G404 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bc5 8. O-O O-O 9. Re1 Qf6 10. d3 h6
World Rapid 2016 – Round 8.9 – Amonatov, Farrukh – 1/2-1/2 – Radjabov, Teimour – G328 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. d3 h6 10. Nd2 Be6

C47f — Glek (1923)

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.g3 d5

Les coups candidats

5.exd5 — 98.6% (1466 parties)

Ambassadeurs : Glek, Igor (64x), Sedina, Elena (13x), Hector, Jonny (11x), Dzhumaev, Marat (9x), Jensen, Kristian Rohde (6x), Reefschlaeger, Helmut, Dr. (5x), Kravtsiv, Martyn (5x), De La Riva Aguado, Oscar (5x)

5.d3 — 0.8% (12 parties)

Ambassadeurs : Then, Patricia (1x), Claire Muiu (1x), Lopez Fernandez, Alba (1x), Camon Botella, Marta (1x), Dicey, Alan (1x), Thurrott, Allan (1x), Koestner, Fabian (1x), Lang, Johannes (1x)

5.Bb5 — 0.2% (3 parties)

Ambassadeurs : Shell, Gregory (1x), Novak, Joze (1x), Shanava, Konstantine (1x), Kantor, Gergely (1x), Estrada Nieves, Chloe A. (1x), Ospina Ramirez, Ibi Samamanta (1x)

5.Bg2 — 0.1% (2 parties)

Ambassadeurs : Aguado Doncel, Blanca (1x), Cloës, Didier (1x), Pandel, Bartosz (1x), Züger, Armin (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.exd5	5.d3	5.Bb5	5.Bg2
<1800	51	98%	2%	—	—
1800-2200	467	99%	1%	0%	—
2200-2600	847	100%	—	0%	—
2600+	30	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	5.exd5	5.d3	5.Bb5	5.Bg2
1970s	2	100%	—	—	—
1980s	12	92%	8%	—	—
1990s	229	99%	—	0%	—
2000s	642	98%	1%	—	—
2010s	418	99%	1%	0%	0%
2020s	184	99%	—	1%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.exd5	99%	99%	▲ +0.9%
5.d3	1%	0%	▼ -0.7%
5.Bb5	0%	1%	+0.3%
5.Bg2	0%	0%	-0.5%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Ding, Liren — 1 partie

Parties historiques

5.exd5 — 98.6% (1466 parties)

1975 — De la Rosa, Jesus Maria vs Carretero Ajo, Jesus — 0-1 — Valladolid
1977 — Sadi, Cesar vs Amado, Claudio — 0-1 — Buenos Aires ARG
1980 — Ioseliani, Nana vs Unni, Vasanti — 1-0 — Valetta
1981 — Shabanov, Yuri vs Karpeshov, Oleg — 0-1 — USSR
1981 — Berg, Klaus vs Kwasniewski, Zdzislaw — 1-0 — Wroclaw POL

5.d3 — 0.8% (12 parties)

1988 — Then, Patricia vs Claire Muiu — 1-0 — Adelaide AUS
2000 — Lopez Fernandez, Alba vs Camon Botella, Marta — 0-1 — Sama de Langreo
2000 — Graefe, Heiko vs Rode Heiko — 0-1 — ?
2002 — Koestner, Fabian vs Lang, Johannes — 1/2-1/2 — Schney
2004 — Dicey, Alan vs Thurrott, Allan — 0-1 — ?

5.Bb5 — 0.2% (3 parties)

1998 — Shell, Gregory vs Novak, Joze — 0-1 — IECG
2018 — Shanava, Konstantine vs Kantor, Gergely — 0-1 — Konya TUR
2025 — Estrada Nieves, Chloe A. vs Ospina Ramirez, Ibi Samamanta — 1-0 — Barranquilla COL

5.Bg2 — 0.1% (2 parties)

2014 — Aguado Doncel, Blanca vs Cloës, Didier — 0-1 — ICCF
2017 — Pandel, Bartosz vs Züger, Armin — 0-1 — ICCF