Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● d4→e5	● c7→d6, e7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d4 (1v0), ● d5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1)	5 (● b8, ● 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	tension
Ruptures	● c4-c5, ● e5-e6	● …c7-c5, ● …f7-f6

B03e — Alekhine: 4.c4

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 * ● Trait aux Noirs

Ouverture — Tension centrale

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. f4 (Attaque à l'aile roi — 62 % des parties) ; exd6 (Capture en d6 — 34 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nb6 (100 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

└── B03e - 4…Nb6 - Alekhine (1971) [+0.58] · 344 parties

├── B03o - 5.exd6 - Exchange Variation (1925) [+0.57] · 169 parties

│ ├── B03o - 5…exd6 - Exchange (1922) [+0.58] · 91 parties

│ │ ├── B03o - 6.* - Exchange · 49 parties

│ │ └── B03p - 6.Nc3 - Exchange (1924) [+0.58] · 42 parties

│ │ ├── B03q - 6…Be7 - Exchange (1923) [+0.46] · 33 parties

│ │ └── B03p - 6…* - Exchange · 9 parties

│ ├── B03r - 5…cxd6 - Exchange (1929) [+0.76] · 72 parties

│ │ ├── B03s - 6.Nc3 - Exchange (1936) [+0.73] · 49 parties

│ │ │ ├── B03s - 6…* - Exchange · 29 parties

│ │ │ └── B03t - 6…g6 7.Be3 - Exchange (1924) [+0.41] · 20 parties

│ │ └── B03r - 6.* - Exchange · 23 parties

│ └── B03o - 5…* - Exchange Variation · 6 parties

├── B03g - 5.f4 - Four Pawns Attack [+0.61] · 166 parties

│ ├── B03j - 5…dxe5 - Four Pawns Attack [+0.74] · 123 parties

│ │ └── B03j - 6.fxe5 - Four Pawns Attack (1957) [+0.68] · 123 parties

│ │ ├── B03m - 6…Nc6 - Four Pawns Attack (1957) [+0.50] · 100 parties

│ │ │ ├── B03n - 7.Be3 - Alekhine Defense: Four Pawns Attack, Main Line (1921) [+0.62] · 88 parties

│ │ │ ├── B03m - 7.Nf3 Bg4 8.e6 fxe6 9.c5 - Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation (1936) [-0.39] · 9 parties

│ │ │ └── B03m - 7.* - Four Pawns Attack · 3 parties

│ │ ├── B03l - 6…Bf5 - Four Pawns Attack (1922) [+0.58] · 16 parties

│ │ │ ├── B03l - 7.* - Four Pawns Attack · 13 parties

│ │ │ ├── B03l - 7.Nc3 e6 8.Nf3 Bb4 9.Bd3 - Fahrni Variation (2025) [+0.78] · 2 parties

│ │ │ └── B03l - 7.Nc3 e6 8.Nf3 Be7 9.Be2 O-O 10.O-O f6 - Alekhine Defense: Four Pawns Attack, Korchnoi Variation (1960) [+0.60] · 1 partie

│ │ ├── B03k - 6…c5 - Four Pawns Attack (1944) [+0.77] · 5 parties

│ │ └── B03j - 6…* - Four Pawns Attack · 2 parties

│ ├── B03h - 5…Bf5 - Trifunovic Variation (1921) [+0.71] · 36 parties

│ └── B03i - 5…g6 - Fianchetto Variation (1925) [+0.87] · 7 parties

├── B03f - 5.Nf3 - Alekhine (1935) [+0.49] · 8 parties

└── B03e - 5.* - Alekhine · 1 partie

Les parties, variante par variante

1344 partiesB03e - 4…Nb6 - Alekhine (1971)

B03e — Alekhine Defense

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4

Les coups candidats

4…Nb6 — 99.9% (20809 parties) →

Ambassadeurs : Baburin, Alexander (72x), Lenz, Juergen (53x), ? (51x), Cafferty, Bernard (48x), Konopka, Michal (44x), Schirmer, Michael (39x), Kantorik, Marian (39x), Grunberg, Mihai-Lucian (36x)

4…Nb4 — 0.1% (11 parties)

Ambassadeurs : Withers, James (1x), Patterson, Stephen (1x), Szamoskozi, Gabor (1x), Szonyi, Bence (1x), Akpinar, Ilker (1x), Celik, Irfan (1x), Le, Nguyen Quoc Thuan (1x), Nguyen, Hoang Nam (1x)

4…Nf6 — 0.0% (3 parties)

Ambassadeurs : De Jong, Peter (1x), Stegeman, Frits (1x), Strating, Henk (1x), Wieringa, K. (1x), Cabuso, Rustum (1x), Luz, Arthur Nader (1x)

4…dxe5 — 0.0% (3 parties)

Ambassadeurs : Conde, Jose Antonio (1x), Huber Rick (1x), Alexandrov, Bianca Alberta (1x), Priore, Luca (1x), Vorontsov, Gennady Nikolaevich (1x), Bugay, Aleksey Anatolievic (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Nb6	4…Nb4	4…Nf6	4…dxe5
<1800	1323	100%	0%	—	—
1800-2200	9369	100%	0%	0%	0%
2200-2600	6807	100%	—	—	—
2600+	83	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	4…Nb6	4…Nb4	4…Nf6	4…dxe5
1950s	67	100%	—	—	—
1960s	230	100%	—	—	—
1970s	870	100%	—	—	—
1980s	1079	100%	—	0%	—
1990s	3810	100%	0%	0%	0%
2000s	6347	100%	0%	—	—
2010s	6645	100%	0%	0%	0%
2020s	1782	100%	0%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Nb6	100%	100%	-0.0%
4…Nb4	0%	0%	+0.1%
4…Nf6	0%	0%	-0.0%
4…dxe5	0%	0%	-0.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 6 parties
Carlsen, Magnus — 5 parties
Karpov, Anatoly — 3 parties
Hou, Yifan — 2 parties
Smyslov, Vladimir — 1 partie

Parties historiques

4…Nb6 — 99.9% (20809 parties)

1950 — Adams, Weaver vs ? — 1-0 — Des Moines, IA USA
1950 — Adams Anieze Okpah vs ? — 1-0 — ?
1950 — Richter Elias Noel vs Strelak — 1-0 — Chocen
1950 — Blatny, Frantisek vs Vrbata, Zbynek — 1-0 — Chocen
1950 — Novak, Zbynek vs LAR, Rai Joseph — 0-1 — Chocen

4…Nb4 — 0.1% (11 parties)

1996 — Withers, James vs Patterson, Stephen — 1-0 — corr IECG Class 2
1998 — Szamoskozi, Gabor vs Szonyi, Bence — 0-1 — HUN
2002 — Akpinar, Ilker vs Celik, Irfan — 1-0 — Kocaeli TUR
2004 — Le, Nguyen Quoc Thuan vs Nguyen, Hoang Nam — 1-0 — Phu Dong
2004 — Benet Munoz, Adolfo vs Cruz Garcia, Guillermo — 1-0 — Alzira

4…Nf6 — 0.0% (3 parties)

1984 — De Jong, Peter vs Stegeman, Frits — 1-0 — Utrecht NED
1993 — Strating, Henk vs Wieringa, K. — 1/2-1/2 — corr Netherlands
2019 — Cabuso, Rustum vs Luz, Arthur Nader — 1-0 — Niteroi BRA

4…dxe5 — 0.0% (3 parties)

1998 — Conde, Jose Antonio vs Huber Rick — 1-0 — UECC email
2016 — Vorontsov, Gennady Nikolaevich vs Bugay, Aleksey Anatolievic — 1-0 — ICCF
2019 — Alexandrov, Bianca Alberta vs Priore, Luca — 1-0 — ICCF