Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● d7→e6, f7→e6
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes ● b5 (2v0)
Cases faibles
Centre ● e5 (1v0)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 0)
Bf1 ● Bf1 Non développé (mob. 0)
Bc8 ● Bc8 Non développé (mob. 0)
Bf8 ● Bf8 Non développé (mob. 2)
Paire de fous ● Oui ● Oui
Non développées 4 (● 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 mobile
Ruptures ● d2-d4 ● …d7-d5

A34 — English: Symmetrical, 3 Knights, 3…e6

1.c4 c5 2.Nc3 Nf6 3.Nf3 e6   ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bB
bQ
bK
bB
bR
bP
bP
bP
bP
bP
bP
bP
bN
Case forte (2v0)
bP
wP
wN
wN
wP
wP
wP
wP
wP
wP
wP
wR
wB
wQ
wK
wB
wR
abcdefgh
Plans. g3 (Préparer le fianchetto — 67 % des parties) ; e3 (Libérer Bf1, préparer Bd3 — 13 % des parties) ; d4 (Occuper le centre — 12 % des parties) ; e4 (Occuper le centre — 7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wB
wK
wQ
wB
wR
wP
wP
wP
wP
wP
wP
wP
wN
wN
wP
bP
bN
bP
bP
bP
bP
bP
bP
bP
bR
bB
bK
bQ
bB
bN
bR
hgfedcba
Plans. ...b6 (Préparer le fianchetto — 51 % des parties) ; ...Nc6 (Développer b8 — 15 % des parties) ; ...d5 (Occuper le centre — 14 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
└── A34a - 2…* - Symmetrical Variation, Normal Variation (1965) [+0.19] · 655 parties
├── A34d - 2…Nf6 - Symmetrical (1928) [+0.24] · 565 parties
│ ├── A34i - 3.Nf3 - English Opening: Symmetrical Variation, Three Knights Variation [+0.26] · 335 parties
│ │ ├── A34n - 3…d5 - Symmetrical, 3 Knights (1927) [+0.20] · 285 parties
│ │ │ ├── A34q - 4.cxd5 Nxd5 - Exchange (1927) [+0.31] · 283 parties
│ │ │ │ ├── A34s - 5.g3 - Symmetrical, 3 Knights (1925) [+0.10] · 97 parties
│ │ │ │ ├── A34q - 5.* - Symmetrical, 3 Knights, Exchange · 81 parties
│ │ │ │ ├── A34t - 5.e4 - Symmetrical, 3 Knights (1937) [+0.24] · 65 parties
│ │ │ │ │ ├── A34w - 5…Nb4 - Symmetrical, 3 Knights (1928) [+0.26] · 50 parties
│ │ │ │ │ │ ├── A34a - 6.Bc4 - Symmetrical, 3 Knights (1926) [+0.22] · 35 parties
│ │ │ │ │ │ ├── A34b - 6.Bb5+ - Symmetrical, 3 Knights (1975) [+0.19] · 13 parties
│ │ │ │ │ │ └── A34w - 6.* - Symmetrical, 3 Knights · 2 parties
│ │ │ │ │ ├── A34x - 5…Nxc3 - Symmetrical, 3 Knights (1933) [+0.60] · 10 parties
│ │ │ │ │ │ ├── A34a - 6.dxc3 Qxd1+ 7.Kxd1 - Queenswap (1931) [+0.25] · 5 parties
│ │ │ │ │ │ └── A34x - 6.* - Symmetrical, 3 Knights · 5 parties
│ │ │ │ │ └── A34t - 5…* - Symmetrical, 3 Knights · 5 parties
│ │ │ │ └── A34u - 5.d4 - Symmetrical, 3 Knights (1953) [+0.29] · 40 parties
│ │ │ │ ├── A34z - 5…Nxc3 - Symmetrical, 3 Knights (1926) [+0.27] · 31 parties
│ │ │ │ ├── A34y - 5…cxd4 - Symmetrical, 3 Knights (1925) [+0.49] · 8 parties
│ │ │ │ └── A34u - 5…* - Symmetrical, 3 Knights · 1 partie
│ │ │ └── A34n - 4.* - Symmetrical, 3 Knights · 2 parties
│ │ ├── A34p - 3…e6 4.g3 - Symmetrical, 3 Knights (1947) [+0.25] · 25 parties
│ │ ├── A34l - 3…b6 - Symmetrical, 3 Knights (1929) [+0.47] · 16 parties
│ │ └── A34m - 3…g6 - Symmetrical, 3 Knights (1923) [+0.52] · 9 parties
│ ├── A34h - 3.g3 - Symmetrical (1925) [+0.17] · 207 parties
│ │ ├── A34j - 3…d5 - Symmetrical (1956) [+0.26] · 128 parties
│ │ │ ├── A34r - 4.cxd5 Nxd5 5.Bg2 - Symmetrical (1932) [+0.14] · 126 parties
│ │ │ │ ├── A34v - 5…Nc7 - Rubinstein System (1947) [+0.12] · 111 parties
│ │ │ │ └── A34r - 5…* - Symmetrical · 15 parties
│ │ │ └── A34j - 4.* - Symmetrical · 2 parties
│ │ └── A34h - 3…* - Symmetrical · 79 parties
│ └── A34d - 3.* - Symmetrical · 23 parties
├── A34c - 2…g6 - Symmetrical (1905) [+0.25] · 85 parties
│ ├── A34g - 3.Nf3 - Symmetrical (1961) [+0.25] · 48 parties
│ ├── A34c - 3.* - Symmetrical · 20 parties
│ └── A34e - 3.g3 - Symmetrical [+0.24] · 17 parties
│ └── A34o - 3…Bg7 4.Bg2 - Symmetrical (1914) [+0.22] · 17 parties
└── A34b - 2…b6 - Symmetrical [+0.45] · 5 parties
└── A34f - 3.Nf3 - Symmetrical [+0.47] · 5 parties
└── A34k - 3…Bb7 - Symmetrical (1935) [+0.52] · 5 parties

Les parties, variante par variante

1655 partiesA34a - 2…* - Symmetrical Variation, Normal Variation (1965)

A34 — Symmetrical, 3 Knights (1948)
1.c4 c5 2.Nc3 Nf6 3.Nf3 e6
Les coups candidats
Ambassadeurs : Ftacnik, Lubomir (116x), Suba, Mihai (91x), Uhlmann, Wolfgang (84x), Adorjan, Andras (46x), Portisch, Lajos (44x), Ribli, Zoltan (43x), Korchnoi, Viktor (38x), Gheorghiu, Florin (38x)
4.e3 — 12.9% (1996 parties)
Ambassadeurs : Ornstein, Axel (22x), Ftacnik, Lubomir (21x), Ivkov, Borislav (20x), Portisch, Lajos (17x), Ribli, Zoltan (13x), Suba, Mihai (13x), Browne, Walter Shawn (12x), Miles, Anthony J (12x)
4.d4 — 12.5% (1930 parties)
Ambassadeurs : Ftacnik, Lubomir (16x), Ljubojevic, Ljubomir (8x), Xu, Jun (7x), Acebal Muniz, Antonio (7x), Ribli, Zoltan (6x), Hort, Vlastimil (5x), Gheorghiu, Florin (5x), Olafsson, Helgi (5x)
4.e4 — 6.9% (1066 parties)
Ambassadeurs : Zvjaginsev, Vadim (10x), Ulybin, Mikhail (6x), Alburt, Lev (5x), Cifuentes, Rejon Carlos Eduardo (5x), Nester, Ihor (5x), Dlugy, Maxim (4x), Kosmo, Santul (4x), Milanovic, Slavisa (4x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.g3 4.e3 4.d4 4.e4
<1800 490 60% 10% 16% 11%
1800-2200 3987 64% 11% 16% 9%
2200-2600 8891 70% 14% 10% 5%
2600+ 548 68% 13% 9% 9%
Évolution par décennie (% des parties)
Décennie N parties 4.g3 4.e3 4.d4 4.e4
1950s 103 61% 24% 10% 3%
1960s 157 60% 29% 9% 1%
1970s 745 68% 19% 9% 3%
1980s 1847 68% 17% 12% 3%
1990s 2436 67% 12% 14% 7%
2000s 4478 68% 10% 13% 8%
2010s 4416 67% 11% 12% 8%
2020s 1282 62% 20% 11% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.g3 67% 62% ▼ -5.4%
4.e3 11% 20% ▲ +9.2%
4.d4 12% 11% ▼ -1.7%
4.e4 8% 6% ▼ -1.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Botvinnik, Mikhail — 4 parties
Ju, Wenjun — 4 parties
Ding, Liren — 4 parties
Gukesh D — 2 parties
Smyslov, Vladimir — 1 partie
Hou, Yifan — 1 partie
Parties historiques
4.g3 — 67.0% (10357 parties)
1950 — Stahlberg, Gideon vs Keres, Paul — 0-1 — Budapest HUN
1950 — Gideon, Stahlberg hlberg vs Keres, Paul Petrovich — 0-1 — Candidates Tournament, Budape
1950 — Stahlberg, Gideon vs Kottnauer, Cenek — 1-0 — Amsterdam NED
1950 — Gawliczek, Andreas vs Keres, Paul — 0-1 — Schiavno Zdroj
1951 — Coosemans, Billy vs Boey, Josef — 1-0 — Antwerp BEL
4.e3 — 12.9% (1996 parties)
1950 — Sandor, Bela vs Pogats, Jozsef Jr. — 1/2-1/2 — Budapest HUN
1951 — Barda, Olaf vs Pytlakowski, Andrzej — 1-0 — Marianske Lazne zt
1952 — Lengyel, Levente vs Anay Barche — 0-1 — Hungary ch
1953 — Keres, Paul Petrovich vs Smyslov, Vasily — 0-1 — Zurich SUI
1954 — Tal, Mikhail vs Vladimir Sergeevich Saigin — 0-1 — Riga LAT
4.d4 — 12.5% (1930 parties)
1950 — Foltys, Jan vs Pirc, Vasja — 1/2-1/2 — Amsterdam NED
1951 — Szilagyi, Gyorgy Laszlo vs Antal, Sebestyen — 1/2-1/2 — Sopot
1952 — Panno, Oscar vs Amaro, Lucas Ibrair — 1-0 — Buenos Aires ARG
1957 — Roos, Michel vs Saint-Germain, Gaston de — 1-0 — cr ch FRA
1958 — Neikirkh, Oleg vs Bertholdt, Dieter — 1/2-1/2 — It Kienbaum GER
4.e4 — 6.9% (1066 parties)
1956 — Bernstein, Ossip vs Gligoric, Svetozar — 1/2-1/2 — Vichy
1956 — Rejfir, Josef vs Fichtl, Jiri — 1/2-1/2 — Marianske Lazne
1959 — Rasmussen, Hans vs Bunt, Henk — 0-1 — Dortmund GER
1968 — Mikadze, Zurab vs Gurgenidze, Bukhuti — 0-1 — Gori
1970 — Ungureanu, Emil vs Illijin, Neboisa — 1/2-1/2 — Bucharest ROU