C18a — French: Winawer, 5…Bxc3+ 6.bxc3

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Qg4 (Prépare O-O-O — 53 % des parties) ; Nf3 (Développer g1 — 22 % des parties) ; Bd2 (Fou actif (mobilité 5), Développer c1 — 12 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Ne7 (Développer g8 — 64 % des parties) ; ...Qc7 (Prépare O-O-O — 18 % des parties) ; ...Qa5 (Contrôle diagonale a5-e1, Prépare O-O-O — 12 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	● c2, ● c3	—
Pions isolés	● a3	—
Arriérés	—	—
Chaînes	● c3→d4, d4→e5	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	—

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 6)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	Non
Non développées	5 (● g1, ● 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	fermé
Ruptures	● c3-c4	● …f7-f6

├── C18f - 6…Ne7 - Winawer (1936) [+0.49] · 371 parties (dont 14 ici)

│ ├── C18j - 7.Qg4 - Winawer (1934) [+0.59] · 313 parties (dont 77 ici)

│ │ ├── C18r - 7…Qc7 - Winawer Variation, Poisoned Pawn Variation (1947) [+0.69] · 132 parties (dont 10 ici)

│ │ │ └── C18r - 8.Qxg7 - Winawer, Poisoned Pawn (1968) [+0.60] · 122 parties (dont 1 ici)

│ │ │ ├── C18t - 8…Rg8 9.Qxh7 cxd4 10.Ne2 - Winawer Variation, Poisoned Pawn Variation, Main Line (1941) [+0.67] · 81 parties (dont 25 ici)

│ │ │ │ └── C18u - 10…Nbc6 11.f4 Bd7 12.Qd3 dxc3 - Winawer, Poisoned Pawn, Main Line (1937) [+0.58] · 56 parties (dont 36 ici)

│ │ │ │ └── C18v - 13.Nxc3 - Winawer, Poisoned Pawn, Main Line (1936) [+0.41] · 20 parties

│ │ │ ├── C18s - 8…Rg8 9.Qxh7 cxd4 10.Kd1 - Winawer Variation, Poisoned Pawn Variation, Paoli Variation (1953) [+0.00] · 38 parties

│ │ │ └── C18r - 8…Rg8 9.Qxh7 cxd4 10.Qd3 - Winawer, Poisoned Pawn (1958) [+0.39] · 2 parties

│ │ ├── C18n - 7…O-O - Winawer Variation, Warsaw Variation (1949) [+0.59] · 54 parties (dont 4 ici)

│ │ │ ├── C18o - 8.Bd3 - Winawer (1959) [+0.61] · 32 parties (dont 20 ici)

│ │ │ │ └── C18p - 8…Nbc6 - Winawer (1988) [+0.80] · 12 parties

│ │ │ └── C18q - 8.Nf3 - Winawer (1935) [+0.53] · 18 parties (dont 5 ici)

│ │ │ └── C18q - 8…Nbc6 - Winawer (1958) [+0.69] · 13 parties

│ │ ├── C18m - 7…cxd4 - Winawer (1935) [+0.49] · 22 parties

│ │ ├── C18l - 7…Kf8 - Winawer Variation, Eingorn Variation (1962) [+0.82] · 21 parties

│ │ └── C18k - 7…Nbc6 - Winawer (1934) [+0.97] · 7 parties

│ └── C18g - 7.h4 - Winawer (1947) [+0.61] · 44 parties (dont 13 ici)

│ ├── C18h - 7…Qc7 - Winawer (1957) [+0.50] · 20 parties (dont 11 ici)

│ │ └── C18h - 8.Nf3 - Winawer (1938) [+0.46] · 9 parties

│ └── C18i - 7…Nbc6 - Winawer (1946) [+0.55] · 11 parties (dont 10 ici)

│ └── C18i - 8.Nf3 - Winawer (2014) [+0.52] · 1 partie

├── C18c - 6…Qc7 - Winawer Variation, Classical Variation (1937) [+0.63] · 105 parties (dont 50 ici)

│ └── C18d - 7.Qg4 - Winawer (1940) [+0.56] · 55 parties (dont 3 ici)

│ ├── C18e - 7…f5 - Winawer (1948) [+1.10] · 43 parties

│ └── C18d - 7…f6 - Winawer (1938) [+1.27] · 9 parties

└── C18b - 6…Qa5 - Winawer Variation, Portisch-Hook Variation (1946) [+0.71] · 31 parties

C18a — Winawer Variation, Advance Variation (1929)

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3

Les coups candidats

6…Ne7 — 64.2% (32087 parties) →

Ambassadeurs : Relyea, Alexander (117x), Prokopp, Heinz (107x), Vontina, Maria (67x), Cimicki, Dariusz (65x), Uhlmann, Wolfgang (56x), Bukal, Vladimir Jr. (49x), Drasko, Milan (49x), Korchnoi, Viktor (45x)

6…Qc7 — 18.1% (9034 parties) →

Ambassadeurs : Belchev, Branimir Petrov (44x), Prandstetter, Eduard (42x), Zoll, Detlef (30x), Just, Gabriele, Dr. (30x), Buese, Ralf (29x), Berg, Emanuel (27x), Matlak, Marek (17x), Lahlum, Hans Olav (17x)

6…Qa5 — 11.8% (5905 parties) →

Ambassadeurs : Mroczek, Jacek (82x), Bohak, Janko (64x), Cimicki, Dariusz (63x), Jovanovic, Bratislav M (63x), Kroes, Friso (43x), Titzhoff, Frank, Dr. (43x), Bartel, Mateusz (39x), Powers Roibal, Frank (34x)

6…Nc6 — 4.4% (2205 parties)

Ambassadeurs : Vastrukhin, Oleg (64x), Vontina, Maria (57x), Rodriguez Vila, Andres (31x), Maksimovic, Branimir (24x), Kahn, Manfred (21x), Girard, Eric (17x), Giaccio, Alfredo (15x), Raicevic, Ivica (15x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Ne7	6…Qc7	6…Qa5	6…Nc6
<1800	2682	61%	16%	12%	7%
1800-2200	19902	62%	19%	13%	4%
2200-2600	17224	63%	17%	15%	5%
2600+	577	61%	9%	22%	7%

Évolution par décennie (% des parties)

Décennie	N parties	6…Ne7	6…Qc7	6…Qa5	6…Nc6
1950s	417	63%	33%	3%	1%
1960s	731	65%	29%	2%	2%
1970s	1391	70%	26%	2%	1%
1980s	3479	79%	17%	2%	1%
1990s	9447	68%	22%	3%	5%
2000s	14738	63%	21%	9%	4%
2010s	15709	61%	14%	21%	4%
2020s	4043	57%	10%	20%	12%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Ne7	61%	57%	▼ -3.7%
6…Qc7	14%	10%	▼ -3.3%
6…Qa5	21%	20%	▼ -0.6%
6…Nc6	4%	12%	▲ +8.1%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Botvinnik, Mikhail — 10 parties
Anand, Viswanathan — 10 parties
Carlsen, Magnus — 10 parties
Hou, Yifan — 10 parties
Karpov, Anatoly — 9 parties
Kasparov, Garry — 7 parties
Smyslov, Vladimir — 1 partie

Parties historiques

6…Ne7 — 64.2% (32087 parties)

1950 — Napolitano, Mario vs Cuadrado Antonio — 1-0 — ?
1950 — Napolitano, Matteo vs Cuadrado, Ariel — 1-0 — corr Wch1
1950 — Napolitano, Mario vs Cuadrado Pastor, Antonio — 1-0 — corr-1
1950 — Gladwin, F. vs Thompson, Harry — 1-0 — England
1950 — Stannard, Anthony vs Nikolenko, Oleg — 1-0 — Australia

6…Qc7 — 18.1% (9034 parties)

1950 — Boleslavsky, Isaac vs Bondarevsky, Igor — 0-1 — Moscow RUS
1950 — Boleslavsky, Isaac vs Bondarevsky, Igor — 1-0 — USSR
1950 — Hawkins, E Neville vs Ansell, Edmund George — 1-0 — Buxton
1950 — Suesman, Walter B vs Weiss, Martin — 1-0 — Rhode Island ch
1950 — Suesman vs Weiss, Martin — 1-0 — Rhode Island ch

6…Qa5 — 11.8% (5905 parties)

1951 — Fuchs, Reinhart vs von Saldern, Ruediger — 1-0 — Leipzig GER
1955 — Straesser, Alfred vs Franz, Joachim — 0-1 — Zwickau
1955 — Gusjkov, Yuri P. vs Piniagin, D. — 1-0 — ?
1956 — Bannik, Anatolij vs Matskevich, Avshalom — 1-0 — Kiev UKR
1956 — Zsedenyi, Berger vs Portisch, Lajos — 0-1 — Budapest HUN

6…Nc6 — 4.4% (2205 parties)

1950 — Kerr, W D vs Minnis, William — 1-0 — Belfast IRL
1953 — Botez, Constantin vs Cretulescu — 1-0 — Bucharest ROU
1956 — Rautenstrauch, Hans Hubert vs Mauer, Manfred — 1/2-1/2 — Zittau
1959 — David Avril R vs Hoen, Ragnar Harald — 1-0 — Muenchenstein/Basel
1960 — Ousatchi, Mark vs Gufeld, Eduard — 1-0 — Kiev UKR