Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● e4, ● e6
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● f7→e6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● e	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 0)
Bb4		● Bb4 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	4 (● c1, ● f1, ● a1, ● h1)	5 (● b8, ● g8, ● 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	● d4-d5, ● f2-f3	● …c7-c5, ● …e4-e3, ● …e6-e5

C15q — French: Winawer, Alekhine Gambit Accepted

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 dxe4 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. a3 (Préparer expansion aile dame — 99 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Be7 (Fou actif (mobilité 8) — 60 % des parties) ; ...Bxc3+ (Fou actif (mobilité 6) — 38 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

├── C15t - 5.a3 Be7 - Winawer, Alekhine Gambit (1935) [+0.30] · 56 parties

│ ├── C15u - 6.Nxe4 Nf6 - Winawer, Alekhine Gambit (1932) [+0.34] · 34 parties

│ │ ├── C15u - 7.* - Winawer, Alekhine Gambit · 28 parties

│ │ └── C15u - 7.N2g3 O-O 8.Be2 Nc6 - French Defense: Winawer Variation, Alekhine Gambit, Alatortsev Variation (1931) [+0.18] · 6 parties

│ └── C15t - 6.* - Winawer, Alekhine Gambit · 22 parties

└── C15q - 5.a3 Bxc3+ - French Defense: Winawer Variation, Alekhine Gambit Accepted (1924) [+0.20] · 32 parties

├── C15r - 6.Nxc3 Nc6 - Winawer Variation, Alekhine Gambit, Kan Variation (1948) [+0.21] · 20 parties

│ ├── C15s - 7.Bb5 - Winawer, Alekhine Gambit, Kan (1939) [+0.17] · 17 parties

│ └── C15r - 7.* - Winawer Variation, Alekhine Gambit, Kan Variation · 3 parties

└── C15q - 6.* - Winawer Variation, Alekhine Gambit Accepted · 12 parties

Les parties, variante par variante

156 partiesC15t - 5.a3 Be7 - Winawer, Alekhine Gambit (1935)

232 partiesC15q - 5.a3 Bxc3+ - French Defense: Winawer Variation, Alekhine Gambit Accepted (1924)

C15q — Winawer, Alekhine Gambit Accepted

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 dxe4

Les coups candidats

5.a3 — 99.1% (5648 parties)

Ambassadeurs : Westerinen, Heikki M.J. (45x), Hector, Jonny (35x), Uhlmann, Wolfgang (21x), Bakheet Farag (20x), Karklins, Andrew (18x), Campora, Daniel H. (18x), Van Mil, Johannes A J (12x), Just, Gabriele, Dr. (11x)

5.Bd2 — 0.4% (24 parties)

Ambassadeurs : Chemes, Luis (1x), Dodero, Emilio (1x), Beaumont, David (1x), Myers, David R (1x), Smeckert, Dennis (1x), Gerry, Mccartney (1x), Del Pozo Herrera, Angel (1x), Vella Ramirez, Alfonso (1x)

5.Bf4 — 0.1% (7 parties)

Ambassadeurs : Copley, Jim (4x), Bird, Andrew (1x), Bernhof, Marc (1x), Lukas, Norbert (1x), Stoker, Andrew J (1x), Watson, Joe (1x), Newhouse, D (1x), Vicente, Fernandez Aytor (1x)

5.g3 — 0.1% (7 parties)

Ambassadeurs : Arntz, Rob (1x), Thomsson, Hakan (1x), Nguyen, Thai Binh (1x), Hieramente, Mayeul (1x), Bakker, Kevin (1x), De Jong, Jasper (1x), Belouassa, Aurelien (1x), Quellec, Yannick (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.a3	5.Bd2	5.Bf4	5.g3
<1800	248	98%	0%	—	0%
1800-2200	2214	99%	0%	0%	0%
2200-2600	2343	100%	—	—	—
2600+	23	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	5.a3	5.Bd2	5.Bf4	5.g3
1950s	52	98%	2%	—	—
1960s	61	100%	—	—	—
1970s	205	100%	—	—	—
1980s	709	99%	0%	0%	—
1990s	1281	99%	1%	0%	—
2000s	1608	99%	1%	0%	0%
2010s	1216	99%	0%	—	0%
2020s	566	100%	—	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.a3	99%	100%	+0.4%
5.Bd2	0%	0%	-0.1%
5.Bf4	0%	0%	+0.0%
5.g3	0%	0%	-0.2%

Parties historiques

5.a3 — 99.1% (5648 parties)

1950 — Afizov, Marsel vs Formanek, Bedrich — 1-0 — Chocen
1950 — Pilnik, Herman vs Martin M Pereira — 1/2-1/2 — Mar del Plata ARG
1950 — Pilnik, Herman vs Martin M Pereira — 1/2-1/2 — Mar del Plata ARG
1950 — Palda, Karl vs Letelier Martner, Rene — 0-1 — Dubrovnik olm
1951 — Walsh, Alexis vs Wade, Robert G — 0-1 — Dublin IRL

5.Bd2 — 0.4% (24 parties)

1956 — Chemes, Luis vs Dodero, Emilio — 0-1 — Santa Fe
1980 — Del Pozo Herrera, Angel vs Vella Ramirez, Alfonso — 0-1 — Valladolid
1985 — Smeckert, Dennis vs Gerry, Mccartney — 0-1 — Westland SE MI opB
1986 — Beaumont, David vs Myers, David R — 0-1 — ?
1994 — Troupe, D. vs Swathell, Gary D — 0-1 — Eastpointe ch-USA amat-N

5.Bf4 — 0.1% (7 parties)

1985 — Copley, Jim vs Bird, Andrew — 1-0 — corr Scotland
1985 — Bernhof, Marc vs Lukas, Norbert — 1/2-1/2 — SV Buer 21
1990 — Copley, Jim vs Stoker, Andrew J — 1-0 — corr GB
1990 — Copley, Jim vs Newhouse, D — 0-1 — ?
1995 — Copley, Jim vs Watson, Joe — 0-1 — Scotland ch-9596

5.g3 — 0.1% (7 parties)

2001 — Nguyen, Thai Binh vs Hieramente, Mayeul — 0-1 — ?
2001 — Bakker, Kevin vs De Jong, Jasper — 0-1 — Hengelo NED
2004 — Arntz, Rob vs Thomsson, Hakan — 0-1 — La Pineda
2009 — Belouassa, Aurelien vs Quellec, Yannick — 0-1 — Rennes
2009 — Dzhangobegov, Vladimir vs Cherkasov, Vladimir — 1/2-1/2 — Obninsk