Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	—	—

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. 0)
Paire de fous	● Oui	● Oui
Non développées	6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1)	6 (● b8, ● g8, ● 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

A10 — A10-A39 English Opening

○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. e4 (Centre d4+e4, libère Bf1) ; Nf3 (Développer Ng1) ; d3 (Libérer Bc1) ; c3 (Préparer d4) ; c4 (Frapper le centre adverse).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nc6 (Développer Nb8) ; ...Nf6 (Développer Ng8) ; ...d6 (Libérer Bc8) ; ...c6 (Renforcer le centre) ; ...c5 (Frapper le centre adverse).

Avantages

Faiblesses

Diagonale active

Plans

├── A10 - 1.c4 - English Opening [+0.14] · 454 parties

│ ├── A10a - 1…* - English Opening (2015) [+0.15] · 2 parties

│ ├── A10b - 1…g5 - Myers Defense [+1.32] · 1 partie

│ │ └── A10j - 2.d4 - English [+1.39] · 1 partie

│ │ └── A10y - 2…Bg7 - Myers Gambit (1964) [+1.48] · 1 partie

│ ├── A10c - 1…b5 - Jaenisch Gambit (1967) [+0.87] · 1 partie

│ ├── A10d - 1…d5 - Anglo-Scandinavian Defense (1931) [+0.54] · 6 parties

│ ├── A10e - 1…b6 - English (1979) [+0.64] · 36 parties

│ │ ├── A10e - 2.* - English · 4 parties

│ │ ├── A10o - 2.Nf3 - English [+0.31] · 9 parties

│ │ │ └── A10c - 2…Bb7 - English (1928) [+0.37] · 9 parties

│ │ └── A10p - 2.Nc3 - English [+0.47] · 23 parties

│ │ ├── A10d - 2…Bb7 - English (1980) [+0.57] · 21 parties

│ │ │ ├── A10d - 3.* - English · 6 parties

│ │ │ └── A10j - 3.e4 - English (1997) [+0.38] · 15 parties

│ │ │ ├── A10j - 3…* - English · 8 parties

│ │ │ └── A10p - 3…e6 - English (1986) [+0.49] · 7 parties

│ │ └── A10z - 2…e6 - English (1993) [+0.49] · 2 parties

│ │ └── A10z - 3.* - English · 2 parties

│ ├── A10f - 1…d6 - English (1958) [+0.38] · 12 parties

│ │ ├── A10f - 2.* - English · 5 parties

│ │ ├── A10q - 2.Nc3 - English (1966) [+0.38] · 3 parties

│ │ └── A10r - 2.Nf3 - English (1923) [+0.46] · 4 parties

│ ├── A10g - 1…g6 - Great Snake Variation (1956) [+0.34] · 152 parties

│ │ ├── A10g - 2.* - Great Snake Variation · 4 parties

│ │ ├── A10k - 2.g3 - English (1955) [+0.24] · 42 parties

│ │ ├── A10l - 2.e4 - English (1957) [+0.23] · 30 parties

│ │ │ ├── A10l - 2…* - English · 6 parties

│ │ │ └── A10x - 2…e5 - Adorjan Defense (1973) [+0.27] · 24 parties

│ │ ├── A10s - 2.Nc3 - English (1957) [+0.21] · 43 parties

│ │ │ ├── A10e - 2…Bg7 - English (1923) [+0.55] · 42 parties

│ │ │ │ ├── A10e - 3.* - English · 10 parties

│ │ │ │ └── A10k - 3.g3 - English (1956) [+0.24] · 32 parties

│ │ │ └── A10s - 2…* - English · 1 partie

│ │ └── A10t - 2.Nf3 - English [+0.40] · 33 parties

│ │ └── A10f - 2…Bg7 - English (1956) [+0.29] · 33 parties

│ ├── A10h - 1…f5 - Anglo-Dutch Defense (1920) [+0.57] · 239 parties

│ │ ├── A10h - 2.* - Anglo-Dutch Defense · 14 parties

│ │ ├── A10m - 2.g4 - Wade Gambit (1956) [-0.27] · 1 partie

│ │ ├── A10n - 2.g3 - Anglo-Dutch (1933) [+0.30] · 36 parties

│ │ │ ├── A10a - 2…Nf6 - Anglo-Dutch (1942) [+0.54] · 35 parties

│ │ │ │ ├── A10a - 3.* - Anglo-Dutch · 2 parties

│ │ │ │ └── A10l - 3.Bg2 - Anglo-Dutch (1904) [+0.31] · 33 parties

│ │ │ └── A10n - 2…* - Anglo-Dutch · 1 partie

│ │ ├── A10u - 2.Nc3 - Anglo-Dutch [+0.34] · 28 parties

│ │ │ └── A10g - 2…Nf6 - Anglo-Dutch (1954) [+0.44] · 28 parties

│ │ │ ├── A10g - 3.* - Anglo-Dutch · 6 parties

│ │ │ └── A10m - 3.g3 - Anglo-Dutch (1944) [+0.29] · 22 parties

│ │ │ ├── A10m - 3…* - Anglo-Dutch · 15 parties

│ │ │ └── A10q - 3…g6 - Anglo-Dutch (1960) [+0.62] · 7 parties

│ │ └── A10v - 2.Nf3 - Anglo-Dutch (1958) [+0.46] · 160 parties

│ │ ├── A10b - 2…e6 - Anglo-Dutch (1925) [+0.58] · 15 parties

│ │ ├── A10h - 2…Nf6 - Anglo-Dutch (1934) [+0.55] · 144 parties

│ │ │ ├── A10h - 3.* - Anglo-Dutch · 5 parties

│ │ │ ├── A10n - 3.g3 - Anglo-Dutch (1935) [+0.59] · 128 parties

│ │ │ │ ├── A10n - 3…* - Anglo-Dutch · 42 parties

│ │ │ │ └── A10r - 3…e6 - Anglo-Dutch (1947) [+0.62] · 86 parties

│ │ │ │ ├── A10r - 4.* - Anglo-Dutch · 2 parties

│ │ │ │ └── A10s - 4.Bg2 - Anglo-Dutch (1926) [+0.58] · 84 parties

│ │ │ │ ├── A10s - 4…* - Anglo-Dutch · 11 parties

│ │ │ │ ├── A10t - 4…Be7 - Anglo-Dutch (1948) [+0.60] · 61 parties

│ │ │ │ │ ├── A10t - 5.* - Anglo-Dutch · 5 parties

│ │ │ │ │ └── A10u - 5.O-O - Anglo-Dutch [+0.50] · 56 parties

│ │ │ │ │ └── A10w - 5…O-O - Anglo-Dutch (1932) [+0.53] · 56 parties (dont 1 ici)

│ │ │ │ │ ├── A10w - 6.* - Anglo-Dutch · 27 parties

│ │ │ │ │ └── A10x - 6.Nc3 - Anglo-Dutch (1946) [+0.54] · 28 parties

│ │ │ │ └── A10v - 4…c6 5.O-O d5 - Anglo-Dutch (1937) [+0.68] · 12 parties

│ │ │ └── A10o - 3.Nc3 - Anglo-Dutch (1931) [+0.42] · 11 parties

│ │ └── A10v - 2…* - Anglo-Dutch · 1 partie

│ └── A10i - 1…Nc6 - Anglo-Lithuanian Variation [+0.50] · 5 parties

│ └── A10w - 2.Nc3 - English (1951) [+0.23] · 5 parties

├── A11 - 1.c4 c6 - Caro-Kann Defensive System [+0.44] · 657 parties

│ ├── A11a - 2.* - Caro-Kann Defensive System (1946) [+0.29] · 6 parties

│ ├── A11b - 2.g3 - Caro-Kann Defence (1962) [+0.25] · 332 parties

│ │ ├── A11b - 2…* - Caro-Kann Defence · 3 parties

│ │ └── A11e - 2…Nf6 - Caro-Kann Defence (1938) [+0.20] · 329 parties

│ │ ├── A11e - 3.* - Caro-Kann Defence · 29 parties

│ │ └── A11j - 3.Bg2 d5 - Caro-Kann Defence (1925) [+0.21] · 300 parties

│ │ ├── A11j - 4.* - Caro-Kann Defence · 38 parties

│ │ └── A11m - 4.Nf3 - Caro-Kann Defence (1951) [+0.23] · 262 parties

│ │ ├── A11m - 4…* - Caro-Kann Defence · 86 parties

│ │ ├── A11p - 4…Bf5 - Caro-Kann Defence (1926) [+0.43] · 106 parties

│ │ │ ├── A11p - 5.* - Caro-Kann Defence · 57 parties

│ │ │ └── A11r - 5.O-O - Caro-Kann Defence (1925) [+0.30] · 49 parties

│ │ │ ├── A11r - 5…* - Caro-Kann Defence · 34 parties

│ │ │ └── A11t - 5…e6 6.d3 - Caro-Kann Defence (1951) [+0.03] · 15 parties

│ │ └── A11q - 4…Bg4 - Caro-Kann Defence (1948) [+0.39] · 70 parties

│ │ ├── A11q - 5.* - Caro-Kann Defence · 30 parties

│ │ └── A11s - 5.O-O - Caro-Kann Defence (1953) [+0.09] · 40 parties

│ ├── A11c - 2.Nc3 - Caro-Kann Defence (2021) [+0.28] · 3 parties

│ │ ├── A11c - 2…* - Caro-Kann Defence · 1 partie

│ │ └── A11f - 2…d5 - Caro-Kann Defence (1937) [+0.26] · 2 parties

│ └── A11d - 2.Nf3 - Caro-Kann Defence (1963) [+0.26] · 316 parties

│ ├── A11a - 2…d5 - Caro-Kann Defence (1927) [+0.25] · 274 parties

│ │ ├── A11a - 3.* - Caro-Kann Defence · 9 parties

│ │ ├── A11h - 3.g3 - Caro-Kann Defence (1961) [+0.20] · 85 parties

│ │ │ ├── A11h - 3…* - Caro-Kann Defence · 14 parties

│ │ │ └── A11k - 3…Bg4 - Caro-Kann Defence (2012) [+0.34] · 71 parties

│ │ │ ├── A11k - 4.* - Caro-Kann Defence · 5 parties

│ │ │ └── A11n - 4.Bg2 - Caro-Kann Defence (1947) [+0.11] · 66 parties

│ │ └── A11i - 3.e3 - Réti Opening: Anglo-Slav Variation, Gurevich System (1932) [+0.26] · 180 parties

│ │ ├── A11i - 3…* - Réti Opening: Anglo-Slav Variation, Gurevich System · 14 parties

│ │ └── A11l - 3…Nf6 - Caro-Kann Defence (1949) [+0.28] · 166 parties

│ │ ├── A11l - 4.* - Caro-Kann Defence · 34 parties

│ │ └── A11o - 4.Nc3 - Caro-Kann Defence (1927) [+0.29] · 132 parties

│ ├── A11d - 2…* - Caro-Kann Defence · 1 partie

│ └── A11g - 2…Nf6 - Caro-Kann Defence (1925) [+0.27] · 41 parties

├── A12 - 1.c4 c6 2.Nf3 d5 3.b3 - English [+0.06] · 305 parties

│ ├── A12a - 3…* - Caro-Kann Defence (1924) [-0.17] · 18 parties

│ ├── A12b - 3…Bg4 - Bogoljubow Variation (1925) [+0.00] · 15 parties

│ ├── A12c - 3…Nf6 4.Bb2 - Caro-Kann Defence (1931) [-0.02] · 108 parties

│ │ ├── A12c - 4…* - Caro-Kann Defence · 13 parties

│ │ ├── A12f - 4…g6 - Bled Variation (1931) [+0.24] · 51 parties

│ │ │ ├── A12f - 5.* - Bled Variation · 23 parties

│ │ │ └── A12m - 5.e3 Bg7 - Bled Variation (1931) [+0.31] · 28 parties

│ │ ├── A12g - 4…Bf5 - New York/London Defence (1924) [+0.29] · 26 parties

│ │ └── A12h - 4…Bg4 - Capablanca (1925) [+0.17] · 18 parties

│ ├── A12d - 3…Nf6 4.g3 Bg4 - Torre Defence (1925) [-0.19] · 22 parties

│ │ ├── A12d - 5.* - Torre Defence · 5 parties

│ │ └── A12i - 5.Bg2 - Torre Defence (1950) [-0.16] · 17 parties

│ │ ├── A12i - 5…* - Torre Defence · 6 parties

│ │ └── A12k - 5…e6 - Torre Defence (1960) [-0.17] · 11 parties

│ │ ├── A12k - 6.* - Torre Defence · 5 parties

│ │ └── A12n - 6.Bb2 - Torre Defence (1938) [-0.18] · 6 parties

│ └── A12e - 3…Nf6 4.g3 Bf5 - London Defence (1930) [-0.22] · 142 parties

│ ├── A12e - 5.* - London Defence · 5 parties

│ └── A12j - 5.Bg2 - London Defence (1924) [-0.20] · 137 parties

│ ├── A12j - 5…* - London Defence · 12 parties

│ └── A12l - 5…e6 - London Defence (1924) [-0.17] · 125 parties

│ ├── A12l - 6.* - London Defence · 37 parties

│ └── A12o - 6.Bb2 - London Defence (1924) [-0.16] · 88 parties

├── A13 - 1.c4 e6 - Agincourt Defense [+0.34] · 1143 parties

│ ├── A13a - 2.* - Agincourt Defense (1924) [+0.22] · 8 parties

│ ├── A13b - 2.g3 - English (1908) [+0.23] · 88 parties

│ │ ├── A13b - 2…* - English · 13 parties

│ │ └── A13c - 2…d5 - English (1904) [+0.15] · 75 parties

│ │ ├── A13c - 3.* - English · 4 parties

│ │ └── A13d - 3.Bg2 - English (1900) [+0.10] · 71 parties

│ ├── A13e - 2.Nc3 - English (1920) [+0.18] · 66 parties

│ │ ├── A13e - 2…* - English · 14 parties

│ │ ├── A13f - 2…Bb4 - English (1949) [+0.29] · 37 parties

│ │ └── A13g - 2…d5 - English (1939) [+0.26] · 15 parties

│ └── A13h - 2.Nf3 - Agincourt Defense (1949) [+0.29] · 981 parties

│ ├── A13h - 2…* - Agincourt Defense · 9 parties

│ ├── A13i - 2…Nf6 - English (1922) [+0.33] · 248 parties

│ │ ├── A13i - 3.* - English · 153 parties

│ │ └── A13j - 3.g3 - English (1925) [+0.31] · 95 parties

│ │ ├── A13j - 3…* - English · 78 parties

│ │ └── A13k - 3…a6 4.Bg2 b5 - Romanishin Gambit (1984) [+0.48] · 17 parties

│ └── A13l - 2…d5 - Agincourt Defense (1902) [+0.35] · 724 parties

│ ├── A13l - 3.* - Agincourt Defense · 59 parties

│ ├── A13m - 3.b3 - Agincourt Variation (1923) [-0.24] · 135 parties

│ │ ├── A13m - 3…* - Agincourt Variation · 67 parties

│ │ └── A13n - 3…Nf6 4.Bb2 c5 5.e3 - Wimpey System (1954) [-0.03] · 68 parties

│ │ ├── A13n - 5…* - Wimpey System · 6 parties

│ │ └── A13n - 5…Nc6 - Wimpey System (1922) [-0.02] · 62 parties

│ └── A13o - 3.g3 - Agincourt Variation (1931) [+0.06] · 530 parties

│ ├── A13o - 3…* - Agincourt Variation · 25 parties

│ ├── A13p - 3…c6 - English Opening: Agincourt Defense, Kurajica Defense (1946) [+0.31] · 5 parties

│ │ ├── A13p - 4.* - Agincourt Defense, Kurajica Defense · 4 parties

│ │ └── A13q - 4.Qc2 - Kurajica Defence (1955) [-0.13] · 1 partie

│ └── A13r - 3…Nf6 - English Opening: Neo-Catalan (1924) [+0.35] · 500 parties

│ ├── A13r - 4.* - Neo-Catalan · 40 parties

│ └── A13s - 4.Bg2 - Neo-Catalan (1900) [+0.17] · 460 parties

│ ├── A13s - 4…* - Neo-Catalan · 110 parties

│ ├── A13s - 4…c6 - Neo-Catalan (1926) [+0.24] · 61 parties

│ │ ├── A13s - 5.* - Neo-Catalan · 12 parties

│ │ └── A13s - 5.b3 - Neo-Catalan (1923) [+0.24] · 49 parties

│ ├── A13t - 4…c5 - Neo-Catalan (1928) [+0.34] · 51 parties

│ │ ├── A13t - 5.* - Neo-Catalan · 21 parties

│ │ └── A13t - 5.O-O - Neo-Catalan (1933) [+0.17] · 30 parties

│ └── A13u - 4…dxc4 - Neo-Catalan Accepted (1926) [+0.30] · 238 parties

│ ├── A13u - 5.* - Neo-Catalan Accepted · 35 parties

│ └── A13v - 5.Qa4+ - Neo-Catalan Accepted (1927) [+0.25] · 203 parties

│ ├── A13v - 5…* - Neo-Catalan Accepted · 61 parties

│ └── A13v - 5…Nbd7 - Neo-Catalan Accepted (1925) [-0.15] · 142 parties

│ ├── A13v - 6.* - Neo-Catalan Accepted · 1 partie

│ ├── A13v - 6.O-O - Neo-Catalan Accepted (1925) [-0.15] · 42 parties

│ └── A13w - 6.Qxc4 - Neo-Catalan Accepted (1941) [+0.23] · 99 parties

│ ├── A13w - 6…* - Neo-Catalan Accepted · 6 parties

│ ├── A13w - 6…a6 - Neo-Catalan Accepted (1939) [+0.25] · 61 parties

│ └── A13w - 6…c5 - Neo-Catalan Accepted (1948) [+0.25] · 32 parties

├── A14 - 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 - Neo-Catalan Declined [+0.41] · 592 parties

│ ├── A14a - 5.* - Neo-Catalan Declined (1930) [+0.20] · 8 parties

│ └── A14b - 5.O-O - Agincourt Defense, Neo-Catalan Declined (1946) [+0.32] · 584 parties

│ ├── A14b - 5…* - Agincourt Defense, Neo-Catalan Declined · 12 parties

│ ├── A14c - 5…c6 - Neo-Catalan Declined (1952) [+0.35] · 7 parties

│ ├── A14d - 5…c5 - Neo-Catalan Declined (1932) [+0.32] · 10 parties

│ └── A14e - 5…O-O - Neo-Catalan Declined (1927) [+0.26] · 555 parties

│ ├── A14e - 6.* - Neo-Catalan Declined · 82 parties

│ └── A14f - 6.b3 - English Opening: Agincourt Defense, Neo-Catalan Declined (1926) [-0.15] · 473 parties (dont 1 ici)

│ ├── A14f - 6…* - Agincourt Defense, Neo-Catalan Declined · 78 parties

│ ├── A14g - 6…b6 - Neo-Catalan Declined (1950) [+0.13] · 149 parties

│ │ ├── A14g - 7.* - Neo-Catalan Declined · 10 parties

│ │ └── A14j - 7.Bb2 Bb7 - Neo-Catalan Declined (1927) [+0.14] · 139 parties

│ │ ├── A14j - 8.* - Neo-Catalan Declined · 93 parties

│ │ └── A14l - 8.e3 - Neo-Catalan Declined (1956) [+0.10] · 46 parties

│ └── A14h - 6…c5 - Neo-Catalan Declined (1928) [+0.12] · 245 parties

│ ├── A14h - 7.* - Neo-Catalan Declined · 64 parties

│ └── A14i - 7.Bb2 - Neo-Catalan Declined (1931) [+0.04] · 181 parties

│ ├── A14i - 7…* - Neo-Catalan Declined · 11 parties

│ └── A14k - 7…Nc6 - Neo-Catalan Declined (1925) [+0.22] · 170 parties

│ ├── A14k - 8.* - Neo-Catalan Declined · 81 parties

│ └── A14m - 8.e3 - Neo-Catalan Declined (1955) [-0.20] · 89 parties

├── A15 - 1.c4 Nf6 - Anglo-Indian Defense [+0.33] · 520 parties

│ ├── A15a - 2.* - Anglo-Indian Defense (1930) [+0.22] · 10 parties

│ ├── A15c - 2.g3 - Anglo-Indian (1924) [+0.25] · 100 parties

│ │ ├── A15a - 2…e6 - Anglo-Indian (1953) [+0.30] · 25 parties

│ │ │ ├── A15a - 3.* - Anglo-Indian · 1 partie

│ │ │ └── A15g - 3.Bg2 - Anglo-Indian (1907) [+0.22] · 24 parties

│ │ ├── A15c - 2…* - Anglo-Indian · 41 parties

│ │ └── A15e - 2…g6 - Anglo-Indian (1934) [+0.42] · 34 parties

│ │ ├── A15e - 3.* - Anglo-Indian · 23 parties

│ │ └── A15h - 3.Bg2 Bg7 - Anglo-Indian (1952) [+0.41] · 11 parties

│ └── A15d - 2.Nf3 - King's Knight Variation (1923) [+0.24] · 410 parties

│ ├── A15d - 2…* - Anglo-Indian Defense, King's Knight Variation · 112 parties

│ └── A15f - 2…g6 - Anglo-Indian Defense, King's Indian Formation (1922) [+0.48] · 298 parties

│ ├── A15f - 3.* - Anglo-Indian Defense, King's Indian Formation · 226 parties

│ └── A15i - 3.g3 Bg7 4.Bg2 - Anglo-Indian (1928) [+0.22] · 72 parties

│ ├── A15i - 4…* - Anglo-Indian · 32 parties

│ └── A15j - 4…O-O - Anglo-Indian (1930) [+0.23] · 40 parties

├── A16 - 1.c4 Nf6 2.Nc3 - Anglo-Indian Defense, Queen's Knight Variation [+0.22] · 798 parties

│ ├── A16a - 2…* - Anglo-Indian Defense, Queen's Knight Variation (1926) [+0.08] · 6 parties

│ ├── A16b - 2…c6 - Anglo-Indian [+0.38] · 35 parties

│ │ ├── A16b - 3.* - Anglo-Indian · 1 partie

│ │ └── A16g - 3.e4 - Anglo-Indian [+0.30] · 34 parties

│ │ ├── A16l - 3…d5 - Anglo-Indian (1933) [+0.33] · 22 parties

│ │ └── A16m - 3…e5 - Anglo-Indian (1933) [+0.48] · 12 parties

│ ├── A16c - 2…d6 - Anglo-Indian (1926) [+0.62] · 23 parties

│ ├── A16d - 2…g6 - Anglo-Indian (1952) [+0.51] · 377 parties

│ │ ├── A16d - 3.* - Anglo-Indian · 6 parties

│ │ ├── A16h - 3.e4 - Anglo-Indian (1933) [+0.53] · 26 parties

│ │ └── A16i - 3.g3 - Anglo-Indian (1945) [+0.38] · 345 parties

│ │ ├── A16i - 3…* - Anglo-Indian · 11 parties

│ │ └── A16n - 3…Bg7 - Anglo-Indian (1960) [+0.21] · 334 parties

│ │ ├── A16n - 4.* - Anglo-Indian · 1 partie

│ │ └── A16q - 4.Bg2 - Anglo-Indian (1923) [+0.32] · 333 parties

│ │ ├── A16q - 4…* - Anglo-Indian · 47 parties

│ │ └── A16t - 4…O-O - Anglo-Indian (1925) [+0.41] · 286 parties

│ │ ├── A16t - 5.* - Anglo-Indian · 107 parties

│ │ ├── A16v - 5.e4 - Anglo-Indian (1955) [-0.21] · 51 parties

│ │ └── A16w - 5.Nf3 - Anglo-Indian (1938) [+0.17] · 128 parties

│ │ ├── A16d - 5…d6 6.O-O - Anglo-Indian (1924) [+0.29] · 71 parties

│ │ └── A16w - 5…* - Anglo-Indian · 57 parties

│ ├── A16e - 2…d5 - Anglo-Grünfeld Defense (1950) [+0.49] · 354 parties

│ │ ├── A16e - 3.* - Anglo-Grünfeld Defense · 4 parties

│ │ ├── A16j - 3.Nf3 - Anglo-Gruenfeld [-1.15] · 14 parties

│ │ │ └── A16o - 3…g6 - Anglo-Gruenfeld (1964) [+0.53] · 14 parties

│ │ │ ├── A16o - 4.* - Anglo-Gruenfeld · 2 parties

│ │ │ ├── A16p - 4.g3 - Anglo-Gruenfeld (1961) [-0.49] · 1 partie

│ │ │ └── A16r - 4.Qa4+ - Anglo-Gruenfeld (1975) [+0.10] · 11 parties

│ │ └── A16k - 3.cxd5 - Anglo-Gruenfeld (1928) [+0.46] · 336 parties

│ │ ├── A16a - 3…Nxd5 4.g3 g6 5.Bg2 Nb6 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation (1932) [+0.44] · 36 parties

│ │ ├── A16c - 3…Nxd5 4.g3 g6 5.Bg2 Nxc3 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation [+0.40] · 92 parties

│ │ │ └── A16e - 6.bxc3 - Anglo-Gruenfeld, Smyslov Variation (1955) [+0.45] · 92 parties

│ │ │ ├── A16e - 6…* - Anglo-Gruenfeld, Smyslov Variation · 9 parties

│ │ │ └── A16g - 6…Bg7 - Anglo-Gruenfeld, Smyslov Variation (1946) [+0.42] · 83 parties

│ │ │ ├── A16g - 7.* - Anglo-Gruenfeld, Smyslov Variation · 45 parties

│ │ │ └── A16h - 7.Rb1 - Anglo-Gruenfeld, Smyslov (1952) [+0.47] · 38 parties

│ │ ├── A16k - 3…* - Anglo-Gruenfeld · 45 parties

│ │ └── A16s - 3…Nxd5 4.Nf3 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation (1925) [+0.25] · 163 parties

│ │ ├── A16s - 4…* - Anglo-Indian Defense, Anglo-Grünfeld Variation · 10 parties

│ │ └── A16u - 4…g6 - Anglo-Indian Defense, Anglo-Grünfeld Variation (1933) [+0.45] · 153 parties

│ │ ├── A16u - 5.* - Anglo-Indian Defense, Anglo-Grünfeld Variation · 64 parties

│ │ ├── A16x - 5.g3 - Anglo-Gruenfeld (2004) [+0.21] · 36 parties

│ │ │ ├── A16b - 5…Bg7 - Anglo-Gruenfeld (1926) [+0.30] · 33 parties (dont 1 ici)

│ │ │ │ ├── A16b - 6.* - Anglo-Gruenfeld · 31 parties

│ │ │ │ └── A16f - 6.Bg2 e5 - English Opening: Anglo-Grünfeld Defense, Korchnoi Variation (1955) [+0.37] · 1 partie

│ │ │ └── A16x - 5…* - Anglo-Gruenfeld · 3 parties

│ │ ├── A16y - 5.e4 - Anglo-Gruenfeld, Andersson-Boeoek Variation (1969) [+0.47] · 29 parties

│ │ │ ├── A16i - 5…Nxc3 6.dxc3 Qxd1+ 7.Kxd1 - Anglo-Gruenfeld, Andersson-Boeoek, Queenswap (1947) [+0.12] · 22 parties

│ │ │ └── A16y - 5…* - Anglo-Gruenfeld, Andersson-Boeoek Variation · 7 parties

│ │ └── A16z - 5.Qa4+ - Anglo-Gruenfeld (1937) [+0.30] · 24 parties

│ └── A16f - 2…Nc6 - Anglo-Indian (1959) [+0.55] · 3 parties

├── A17 - 1.c4 Nf6 2.Nc3 e6 - Anglo-Indian Defense, Hedgehog System [+0.50] · 507 parties

│ ├── A17a - 3.* - Anglo-Indian Defense, Hedgehog System (1929) [+0.39] · 6 parties

│ ├── A17b - 3.g3 - Anglo-Indian (1926) [-0.24] · 56 parties

│ └── A17c - 3.Nf3 - Anglo-Indian (1957) [+0.22] · 449 parties

│ ├── A17c - 3…* - Anglo-Indian · 13 parties

│ ├── A17d - 3…d5 - Anglo-Indian (1934) [+0.29] · 75 parties

│ ├── A17e - 3…b6 - Anglo-Queen’s Indian [+0.34] · 134 parties

│ │ ├── A17e - 4.* - Anglo-Queen’s Indian · 4 parties

│ │ ├── A17g - 4.e4 - Anglo-Queen’s Indian (1939) [+0.43] · 42 parties

│ │ │ ├── A17g - 4…* - Anglo-Queen’s Indian · 31 parties

│ │ │ └── A17l - 4…Bb7 5.Bd3 - Romanishin (1975) [+0.08] · 11 parties

│ │ └── A17h - 4.g3 - Anglo-Queen’s Indian (2005) [+0.23] · 88 parties

│ │ ├── A17h - 4…* - Anglo-Queen’s Indian · 1 partie

│ │ └── A17m - 4…Bb7 5.Bg2 - Anglo-Queen’s Indian (1927) [+0.33] · 87 parties (dont 1 ici)

│ │ ├── A17m - 5…* - Anglo-Queen’s Indian · 10 parties

│ │ └── A17n - 5…Be7 6.O-O O-O - Anglo-Queen’s Indian (1925) [+0.30] · 76 parties

│ │ ├── A17a - 7.Re1 - Anglo-Queen’s Indian (1974) [+0.23] · 41 parties

│ │ └── A17n - 7.* - Anglo-Queen’s Indian · 35 parties

│ └── A17f - 3…Bb4 - English Opening: Anglo-Indian Defense, Nimzo-English (1941) [+0.26] · 227 parties

│ ├── A17f - 4.* - Anglo-Indian Defense, Nimzo-English · 62 parties

│ ├── A17i - 4.g3 - Nimzo-English (1928) [+0.17] · 59 parties

│ └── A17j - 4.Qc2 - Nimzo-English (1927) [+0.23] · 106 parties (dont 1 ici)

│ ├── A17j - 4…* - Nimzo-English · 43 parties

│ └── A17k - 4…O-O - Nimzo-English (1947) [+0.25] · 62 parties

├── A18 - 1.c4 Nf6 2.Nc3 e6 3.e4 - English (1927) [+0.33] · 245 parties

│ ├── A18a - 3…* - Mikenas [+0.41] · 5 parties

│ ├── A18b - 3…d6 - Mikenas (1928) [+0.85] · 13 parties

│ │ ├── A18b - 4.* - Mikenas · 7 parties

│ │ └── A18h - 4.d4 Be7 - Mikenas (1934) [+0.93] · 6 parties

│ ├── A18c - 3…d5 - Mikenas, French Variation [+0.32] · 222 parties

│ │ ├── A18e - 4.e5 - Mikenas, Flohr Variation (1936) [+0.34] · 151 parties

│ │ │ ├── A18e - 4…* - Mikenas, Flohr Variation · 9 parties

│ │ │ ├── A18g - 4…d4 - Mikenas, Flohr (1931) [+0.18] · 134 parties

│ │ │ │ ├── A18g - 5.* - Mikenas, Flohr · 31 parties

│ │ │ │ ├── A18j - 5.exf6 dxc3 6.bxc3 Qxf6 7.d4 - Mikenas, Flohr (1930) [+0.16] · 74 parties

│ │ │ │ │ ├── A18j - 7…* - Mikenas, Flohr · 27 parties

│ │ │ │ │ ├── A18l - 7…c5 - Mikenas, Flohr (1930) [+0.38] · 35 parties

│ │ │ │ │ └── A18m - 7…e5 - Mikenas, Flohr (1929) [+0.16] · 12 parties

│ │ │ │ └── A18k - 5.exf6 dxc3 6.bxc3 Qxf6 7.Nf3 - Mikenas, Flohr (1930) [+0.20] · 29 parties

│ │ │ └── A18i - 4…Ne4 - Mikenas, Flohr (1938) [+0.47] · 8 parties

│ │ └── A18f - 4.cxd5 - Mikenas, French (1928) [+0.24] · 71 parties

│ └── A18d - 3…Nc6 - Mikenas, Kevitz Defence (1921) [+0.88] · 5 parties

├── A19 - 1.c4 Nf6 2.Nc3 e6 3.e4 c5 - English [+0.44] · 103 parties

│ ├── A19a - 4.* - Mikenas, Sicilian Variation [+0.41] · 22 parties

│ └── A19b - 4.e5 - Mikenas, Sicilian [+0.33] · 81 parties

│ └── A19c - 4…Ng8 - Mikenas, Sicilian (1945) [+0.31] · 81 parties

│ ├── A19c - 5.* - Mikenas, Sicilian · 5 parties

│ ├── A19d - 5.d4 - Mikenas, Nei Gambit (1950) [+0.27] · 40 parties

│ └── A19e - 5.Nf3 - Mikenas (1959) [+0.38] · 36 parties

│ ├── A19e - 5…* - Mikenas · 4 parties

│ └── A19f - 5…Nc6 - Mikenas (1939) [+0.30] · 32 parties

│ ├── A19f - 6.* - Mikenas · 8 parties

│ └── A19g - 6.d4 - Mikenas (1963) [+0.42] · 24 parties

│ ├── A19a - 6…cxd4 7.Nxd4 Nxe5 - Mikenas (1955) [+0.22] · 21 parties

│ └── A19g - 6…* - Mikenas · 3 parties

├── A20 - 1.c4 e5 - King's English Variation [+0.25] · 520 parties

│ ├── A20a - 2.* - King's English Variation (1924) [+0.20] · 19 parties

│ ├── A20b - 2.d3 - King’s (1939) [+0.09] · 56 parties

│ ├── A20c - 2.e3 - King’s (1905) [+0.08] · 18 parties

│ ├── A20d - 2.g3 - King’s (1955) [+0.20] · 350 parties

│ │ ├── A20d - 2…* - King’s · 29 parties

│ │ ├── A20f - 2…f5 - King’s (1954) [+0.28] · 9 parties

│ │ ├── A20g - 2…g6 - King’s (1950) [+0.35] · 12 parties

│ │ │ ├── A20g - 3.* - King’s · 9 parties

│ │ │ └── A20o - 3.Bg2 - King’s [+0.20] · 3 parties

│ │ │ └── A20s - 3…Bg7 - King’s (1925) [+0.17] · 3 parties

│ │ ├── A20h - 2…c6 - King’s (1938) [+0.25] · 57 parties

│ │ │ ├── A20h - 3.* - King’s · 38 parties

│ │ │ └── A20n - 3.d4 - King’s (1980) [+0.25] · 19 parties

│ │ ├── A20i - 2…d6 - King’s (1957) [+0.37] · 32 parties

│ │ │ ├── A20i - 3.* - King’s · 3 parties

│ │ │ └── A20p - 3.Bg2 - King’s (1953) [+0.27] · 29 parties

│ │ ├── A20j - 2…Nc6 - King’s [+0.36] · 34 parties

│ │ │ └── A20q - 3.Bg2 - King’s (1939) [+0.30] · 34 parties

│ │ └── A20k - 2…Nf6 - King’s [+0.21] · 177 parties

│ │ └── A20r - 3.Bg2 - King’s (1910) [+0.24] · 177 parties

│ │ ├── A20r - 3…* - King’s · 27 parties

│ │ ├── A20t - 3…c6 - King’s (1951) [+0.16] · 88 parties

│ │ ├── A20u - 3…d5 - King’s (1943) [+0.29] · 31 parties

│ │ ├── A20v - 3…Bc5 - King’s (1962) [+0.30] · 26 parties

│ │ └── A20w - 3…Nc6 - King’s (1942) [+0.32] · 5 parties

│ └── A20e - 2.Nf3 - Nimzowitsch Variation (1961) [-0.09] · 77 parties

│ ├── A20e - 2…* - King's English Variation, Nimzowitsch Variation · 1 partie

│ ├── A20l - 2…e4 - King's English Variation, Nimzowitsch-Flohr Variation (1923) [-0.12] · 36 parties

│ └── A20m - 2…Nc6 - King’s, Nimzowitsch (1925) [+0.20] · 40 parties

├── A21 - 1.c4 e5 2.Nc3 - King's English Variation, Reversed Sicilian [+0.14] · 685 parties

│ ├── A21a - 2…* - King's English Variation, Reversed Sicilian (1925) [+0.12] · 15 parties

│ ├── A21b - 2…f5 - King’s (1902) [+0.38] · 67 parties

│ │ ├── A21b - 3.* - King’s · 25 parties

│ │ └── A21l - 3.g3 Nf6 - King’s (1953) [+0.34] · 42 parties

│ │ ├── A21l - 4.* - King’s · 3 parties

│ │ └── A21v - 4.Bg2 - King’s (1927) [+0.13] · 39 parties

│ ├── A21c - 2…g6 - King’s (1934) [+0.59] · 140 parties

│ │ ├── A21c - 3.* - King’s · 9 parties

│ │ └── A21w - 3.g3 Bg7 4.Bg2 - King’s (1937) [+0.23] · 131 parties

│ ├── A21d - 2…d6 - King’s (1952) [+0.34] · 340 parties

│ │ ├── A21d - 3.* - King’s · 24 parties

│ │ ├── A21f - 3.d4 - King’s (1950) [+0.17] · 33 parties

│ │ ├── A21g - 3.g3 - King’s (1922) [+0.31] · 178 parties

│ │ │ ├── A21g - 3…* - King’s · 175 parties

│ │ │ └── A21k - 3…c6 - English Opening: King's English Variation, Keres Defense (1955) [+0.36] · 3 parties

│ │ │ ├── A21k - 4.* - King's English Variation, Keres Defense · 2 parties

│ │ │ └── A21u - 4.Bg2 - King’s, Keres Variation (1955) [+0.44] · 1 partie

│ │ └── A21h - 3.Nf3 - English Opening: King's English Variation (1954) [+0.50] · 105 parties

│ │ ├── A21h - 3…* - King's English Variation · 6 parties

│ │ ├── A21m - 3…g6 - King’s (1955) [+0.57] · 6 parties

│ │ ├── A21n - 3…f5 - Lukin Variation (1957) [+0.41] · 86 parties

│ │ │ ├── A21n - 4.* - Lukin Variation · 14 parties

│ │ │ └── A21y - 4.d4 e4 - Lukin (1955) [+0.44] · 72 parties

│ │ │ ├── A21a - 5.Nd2 - Lukin (1953) [+0.00] · 24 parties

│ │ │ │ ├── A21a - 5…* - Lukin · 5 parties

│ │ │ │ └── A21f - 5…Nf6 6.e3 - Lukin (1950) [-0.03] · 19 parties

│ │ │ ├── A21b - 5.Ng5 - Lukin (1982) [+0.08] · 39 parties

│ │ │ │ ├── A21b - 5…* - Lukin · 2 parties

│ │ │ │ ├── A21c - 5…c6 - Lukin (1965) [+0.26] · 8 parties

│ │ │ │ ├── A21d - 5…Nf6 - Lukin (1964) [+0.42] · 3 parties

│ │ │ │ └── A21e - 5…Be7 - Lukin (1954) [+0.42] · 26 parties

│ │ │ └── A21y - 5.* - Lukin · 9 parties

│ │ └── A21o - 3…Bg4 - King's English Variation, Smyslov Defense (1956) [+0.89] · 7 parties

│ └── A21e - 2…Bb4 - King's English Variation, Kramnik-Shirov Counterattack (1990) [+0.22] · 124 parties

│ ├── A21e - 3.* - King's English Variation, Kramnik-Shirov Counterattack · 13 parties

│ ├── A21i - 3.g3 - Kramnik-Shirov (1957) [+0.27] · 11 parties

│ │ ├── A21i - 3…* - Kramnik-Shirov · 2 parties

│ │ └── A21q - 3…Bxc3 - Kramnik-Shirov (2019) [+0.28] · 9 parties

│ │ ├── A21q - 4.* - Kramnik-Shirov · 1 partie

│ │ └── A21z - 4.bxc3 - Kramnik-Shirov (1985) [+0.07] · 8 parties

│ └── A21j - 3.Nd5 - Kramnik-Shirov (1993) [+0.20] · 100 parties

│ ├── A21j - 3…* - Kramnik-Shirov · 4 parties

│ ├── A21p - 3…a5 - Kramnik-Shirov (2009) [+0.25] · 26 parties

│ ├── A21r - 3…Ba5 - Kramnik-Shirov (1990) [+0.69] · 2 parties

│ ├── A21s - 3…Bc5 - Kramnik-Shirov (2008) [+0.41] · 40 parties

│ └── A21t - 3…Be7 - Kramnik-Shirov (1990) [+0.22] · 28 parties

│ ├── A21t - 4.* - Kramnik-Shirov · 14 parties

│ └── A21x - 4.d4 - Kramnik-Shirov (1993) [+0.14] · 14 parties

├── A22 - 1.c4 e5 2.Nc3 Nf6 - King's English Variation, Two Knights Variation [+0.13] · 405 parties

│ ├── A22a - 3.* - King's English Variation, Two Knights Variation (1907) [+0.21] · 9 parties

│ ├── A22b - 3.e4 - King’s (1930) [-0.17] · 28 parties

│ ├── A22c - 3.e3 - King’s (1901) [-0.04] · 38 parties

│ │ ├── A22c - 3…* - King’s · 17 parties

│ │ └── A22g - 3…Bb4 - King’s (1965) [+0.14] · 21 parties

│ ├── A22d - 3.g3 - Carls-Bremen System (1909) [+0.23] · 303 parties

│ │ ├── A22d - 3…* - Carls-Bremen System · 27 parties

│ │ ├── A22f - 3…d5 - King's English Variation, Two Knights Variation, Reversed Dragon (1939) [+0.22] · 128 parties

│ │ │ ├── A22f - 4.* - King's English Variation, Two Knights Variation, Reversed Dragon · 1 partie

│ │ │ └── A22l - 4.cxd5 - Bremen, Reverse Dragon [+0.25] · 127 parties

│ │ │ └── A22p - 4…Nxd5 - Bremen, Reverse Dragon (1948) [+0.26] · 127 parties

│ │ │ ├── A22p - 5.* - Bremen, Reverse Dragon · 4 parties

│ │ │ └── A22s - 5.Bg2 - Bremen, Reverse Dragon (1911) [+0.24] · 123 parties

│ │ │ ├── A22a - 5…Nb6 - Bremen, Reverse Dragon (2021) [+0.42] · 54 parties

│ │ │ └── A22s - 5…* - Bremen, Reverse Dragon · 69 parties

│ │ ├── A22j - 3…Bc5 - Bremen (1925) [+0.34] · 25 parties

│ │ └── A22k - 3…Bb4 - King's English Variation, Two Knights Variation, Smyslov System (1966) [+0.23] · 123 parties

│ │ ├── A22k - 4.* - King's English Variation, Two Knights Variation, Smyslov System · 24 parties

│ │ └── A22m - 4.Bg2 - Bremen, Smyslov [+0.26] · 99 parties

│ │ ├── A22o - 4…O-O - Bremen, Smyslov (1911) [+0.23] · 97 parties

│ │ │ ├── A22o - 5.* - Bremen, Smyslov · 65 parties

│ │ │ └── A22r - 5.e4 - Bremen, Smyslov (1960) [+0.14] · 32 parties

│ │ └── A22q - 4…Bxc3 - Bremen, Smyslov (2012) [+0.18] · 2 parties

│ └── A22e - 3.Nf3 - King’s [+0.22] · 27 parties

│ ├── A22h - 3…d6 - King’s (1921) [+0.55] · 17 parties

│ └── A22i - 3…e4 - King’s (1956) [+0.49] · 10 parties

│ └── A22i - 4.* - King’s · 10 parties

├── A23 - 1.c4 e5 2.Nc3 Nf6 3.g3 c6 - King's English Variation, Two Knights Variation, Keres Variation [+0.28] · 139 parties

│ ├── A23a - 4.* - King's English Variation, Two Knights Variation, Keres Variation (1954) [+0.18] · 22 parties

│ ├── A23b - 4.Nf3 - Bremen, Keres (1959) [+0.05] · 92 parties

│ │ ├── A23b - 4…* - Bremen, Keres · 2 parties

│ │ ├── A23d - 4…d6 - Bremen, Keres (1946) [+0.38] · 18 parties

│ │ │ ├── A23d - 5.* - Bremen, Keres · 4 parties

│ │ │ └── A23g - 5.Bg2 - Bremen, Keres (1955) [+0.47] · 14 parties

│ │ └── A23e - 4…e4 - Bremen, Keres (1928) [+0.09] · 72 parties

│ └── A23c - 4.Bg2 - Bremen, Keres (1957) [+0.02] · 25 parties

│ ├── A23c - 4…* - Bremen, Keres · 3 parties

│ └── A23f - 4…d5 - Bremen, Keres (1958) [+0.00] · 22 parties

│ ├── A23f - 5.* - Bremen, Keres · 4 parties

│ └── A23h - 5.cxd5 - Bremen, Keres [-0.41] · 18 parties

│ └── A23a - 5…cxd5 - Bremen, Keres (1923) [+0.30] · 18 parties

├── A24 - 1.c4 e5 2.Nc3 Nf6 3.g3 g6 - King's English Variation, Two Knights Variation, Fianchetto Line (1947) [+0.44] · 226 parties

│ ├── A24a - 4.* - King's English Variation, Two Knights Variation, Fianchetto Line (1963) [+0.44] · 2 parties

│ └── A24b - 4.Bg2 - Bremen [+0.49] · 224 parties

│ └── A24c - 4…Bg7 - Bremen (1961) [+0.37] · 224 parties

│ ├── A24c - 5.* - Bremen · 3 parties

│ ├── A24d - 5.d3 - Bremen (1953) [+0.30] · 5 parties

│ ├── A24e - 5.e3 - Bremen (1938) [+0.23] · 65 parties

│ │ ├── A24e - 5…* - Bremen · 4 parties

│ │ └── A24j - 5…d6 6.Nge2 O-O - Bremen (1949) [+0.27] · 61 parties

│ ├── A24f - 5.e4 - Bremen (1959) [+0.30] · 60 parties

│ │ ├── A24f - 5…* - Bremen · 1 partie

│ │ └── A24h - 5…d6 - Bremen (1952) [+0.26] · 59 parties

│ │ ├── A24h - 6.* - Bremen · 4 parties

│ │ └── A24k - 6.Nge2 O-O - Bremen (1946) [+0.29] · 55 parties

│ │ ├── A24k - 7.* - Bremen · 48 parties

│ │ └── A24m - 7.d3 - Bremen (1956) [+0.31] · 7 parties

│ └── A24g - 5.Nf3 - Bremen (1954) [+0.35] · 91 parties

│ ├── A24g - 5…* - Bremen · 5 parties

│ ├── A24l - 5…d6 6.O-O O-O - Bremen (1947) [+0.50] · 11 parties

│ └── A24n - 5…d6 6.d3 O-O 7.O-O - Bremen (1947) [+0.25] · 75 parties

│ ├── A24n - 7…* - Bremen · 59 parties

│ └── A24o - 7…c6 - English: Bremen [+0.36] · 16 parties

├── A25 - 1.c4 e5 2.Nc3 Nc6 - King's English Variation, Reversed Closed Sicilian [+0.38] · 625 parties

│ ├── A25a - 3.* - King's English Variation, Reversed Closed Sicilian (1920) [+0.27] · 6 parties

│ ├── A25b - 3.e3 - Closed (1966) [-0.06] · 28 parties

│ │ ├── A25b - 3…* - Closed · 4 parties

│ │ └── A25f - 3…Nf6 - Closed (1902) [-0.10] · 24 parties

│ └── A25c - 3.g3 - Closed (1923) [+0.23] · 591 parties

│ ├── A25c - 3…* - Closed · 27 parties

│ ├── A25d - 3…f5 - Closed (2025) [+0.34] · 85 parties

│ │ ├── A25d - 4.* - Closed · 1 partie

│ │ └── A25h - 4.Bg2 - Closed (1938) [+0.35] · 84 parties

│ │ ├── A25h - 4…* - Closed · 3 parties

│ │ └── A25l - 4…Nf6 - Closed (1921) [+0.34] · 81 parties

│ │ ├── A25l - 5.* - Closed · 31 parties

│ │ ├── A25q - 5.d3 - Closed (1935) [+0.31] · 38 parties

│ │ └── A25y - 5.e3 g6 - Closed (1960) [+0.36] · 12 parties

│ ├── A25e - 3…g6 - Closed (1936) [+0.25] · 305 parties

│ │ ├── A25e - 4.* - Closed · 1 partie

│ │ └── A25j - 4.Bg2 - Closed (1956) [+0.21] · 304 parties

│ │ ├── A25j - 4…* - Closed · 11 parties

│ │ └── A25n - 4…Bg7 - English Opening: King's English Variation, Taimanov Variation (1926) [+0.26] · 293 parties

│ │ ├── A25n - 5.* - King's English Variation, Taimanov Variation · 31 parties

│ │ ├── A25s - 5.e3 - Closed (1923) [+0.28] · 144 parties

│ │ │ ├── A25c - 5…d6 6.Nge2 Nh6 - English Opening: Closed, Taimanov Variation (1938) [+0.52] · 4 parties

│ │ │ ├── A25d - 5…d6 6.Nge2 Be6 - English Opening: King's English Variation, Bremen-Hort Variation (1937) [+0.58] · 23 parties

│ │ │ └── A25s - 5…* - Closed · 117 parties

│ │ ├── A25t - 5.e4 - Closed (1961) [+0.22] · 10 parties

│ │ ├── A25u - 5.d3 - King's English Variation, Closed System (1961) [+0.27] · 32 parties

│ │ │ ├── A25b - 5…Nge7 - Closed (1912) [+0.35] · 27 parties

│ │ │ └── A25u - 5…* - King's English Variation, Closed System · 5 parties

│ │ └── A25w - 5.Rb1 - King's English Variation, Hungarian Attack (1953) [+0.22] · 76 parties

│ │ ├── A25a - 5…Nh6 - Closed, Taimanov Variation (1965) [+0.60] · 5 parties

│ │ ├── A25w - 5…* - King's English Variation, Hungarian Attack · 45 parties

│ │ └── A25z - 5…a5 - Closed (1953) [+0.24] · 26 parties

│ ├── A25g - 3…Nf6 - Closed [+0.39] · 91 parties

│ │ └── A25k - 4.Bg2 - Closed (1911) [+0.34] · 91 parties

│ │ ├── A25k - 4…* - Closed · 36 parties

│ │ ├── A25o - 4…Bc5 - Closed (1901) [+0.33] · 33 parties

│ │ │ ├── A25o - 5.* - Closed · 8 parties

│ │ │ └── A25v - 5.e3 - Closed (1934) [+0.34] · 25 parties

│ │ └── A25p - 4…Bb4 - Closed (1936) [+0.40] · 22 parties

│ │ ├── A25p - 5.* - Closed · 4 parties

│ │ └── A25x - 5.Nd5 - Closed (1930) [+0.38] · 18 parties

│ └── A25i - 3…d6 4.Bg2 - Closed (1923) [+0.26] · 83 parties

│ ├── A25i - 4…* - Closed · 49 parties

│ └── A25m - 4…Be6 - English Opening: King's English Variation, Troger Defense (1964) [+0.64] · 34 parties

│ ├── A25m - 5.* - King's English Variation, Troger Defense · 5 parties

│ └── A25r - 5.d3 - Closed, Troeger (1922) [+0.46] · 29 parties

├── A26 - 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 - King's English Variation, Closed System, Full Symmetry [+0.24] · 360 parties

│ ├── A26a - 6.* - King's English Variation, Closed System, Full Symmetry (1933) [+0.26] · 19 parties

│ ├── A26b - 6.e3 - Closed (1938) [+0.26] · 10 parties

│ ├── A26c - 6.e4 - King's English Variation, Botvinnik System (1961) [+0.24] · 87 parties

│ │ ├── A26c - 6…* - King's English Variation, Botvinnik System · 22 parties

│ │ ├── A26h - 6…Nf6 - Botvinnik System [+0.37] · 38 parties

│ │ │ ├── A26k - 7.Nf3 - Botvinnik System [+0.16] · 5 parties

│ │ │ │ └── A26p - 7…O-O 8.O-O - Botvinnik System (1955) [+0.07] · 5 parties

│ │ │ └── A26m - 7.Nge2 - Botvinnik System (1957) [+0.40] · 33 parties

│ │ │ ├── A26m - 7…* - Botvinnik System · 3 parties

│ │ │ └── A26r - 7…O-O 8.O-O - Botvinnik System (1952) [+0.41] · 30 parties

│ │ └── A26j - 6…Nge7 - Botvinnik System (1947) [+0.24] · 27 parties

│ │ ├── A26j - 7.* - Botvinnik System · 1 partie

│ │ └── A26n - 7.Nge2 - Botvinnik System (1956) [+0.21] · 26 parties

│ ├── A26d - 6.Rb1 - Closed (1961) [+0.22] · 39 parties

│ │ ├── A26d - 6…* - Closed · 17 parties

│ │ ├── A26f - 6…f5 - Closed (1959) [+0.56] · 8 parties

│ │ └── A26g - 6…a5 - Closed (1957) [+0.23] · 14 parties

│ └── A26e - 6.Nf3 - Closed (1926) [+0.15] · 205 parties

│ ├── A26e - 6…* - Closed · 32 parties

│ └── A26i - 6…Nf6 - Closed (1920) [+0.28] · 173 parties

│ ├── A26i - 7.* - Closed · 5 parties

│ └── A26l - 7.O-O - Closed (1925) [+0.22] · 168 parties

│ ├── A26l - 7…* - Closed · 1 partie

│ └── A26o - 7…O-O - Closed (1941) [+0.28] · 167 parties

│ ├── A26o - 8.* - Closed · 32 parties

│ └── A26q - 8.Rb1 - Closed (1907) [+0.25] · 135 parties

│ ├── A26q - 8…* - Closed · 52 parties

│ └── A26s - 8…a5 - Closed (1955) [+0.26] · 83 parties

│ ├── A26s - 9.* - Closed · 11 parties

│ └── A26t - 9.a3 - Closed (1952) [+0.14] · 72 parties

│ ├── A26t - 9…* - Closed · 50 parties

│ └── A26u - 9…h6 - Closed (1955) [+0.24] · 22 parties

├── A27 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 - King's English Variation, Three Knights System (1934) [+0.18] · 163 parties

│ ├── A27a - 3…* - King's English Variation, Three Knights System (1929) [+0.12] · 10 parties

│ ├── A27b - 3…d6 - Three Knights (1925) [+0.55] · 14 parties

│ ├── A27c - 3…f5 - Three Knights (1913) [+0.50] · 76 parties

│ │ ├── A27c - 4.* - Three Knights · 30 parties

│ │ └── A27f - 4.d4 - Three Knights (1951) [+0.19] · 46 parties

│ │ ├── A27f - 4…* - Three Knights · 1 partie

│ │ └── A27h - 4…e4 - Three Knights (1931) [+0.12] · 45 parties

│ ├── A27d - 3…g6 - Three Knights (1944) [+0.33] · 61 parties

│ │ ├── A27d - 4.* - Three Knights · 14 parties

│ │ └── A27g - 4.d4 - Three Knights [+0.35] · 47 parties

│ │ └── A27i - 4…exd4 - Three Knights (1945) [+0.30] · 47 parties

│ │ ├── A27i - 5.* - Three Knights · 12 parties

│ │ └── A27j - 5.Nxd4 - English: Three Knights [+0.38] · 35 parties

│ └── A27e - 3…Bb4 - Three Knights (1962) [+0.38] · 2 parties

├── A28 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 - English [+0.22] · 680 parties

│ ├── A28a - 4.* - Four Knights (1976) [+0.15] · 4 parties

│ ├── A28b - 4.e4 - Four Knights, Nimzowitsch Variation (1926) [+0.14] · 76 parties

│ ├── A28c - 4.a3 - Four Knights, Marini Variation (1907) [-0.05] · 61 parties

│ ├── A28d - 4.d3 - Four Knights, Capablanca Variation (1931) [-0.07] · 96 parties

│ ├── A28e - 4.d4 - Four Knights (1925) [-0.18] · 192 parties

│ │ ├── A28e - 4…* - Four Knights · 139 parties

│ │ ├── A28g - 4…e4 - Bradley Beach Variation (1927) [-0.09] · 33 parties

│ │ └── A28l - 4…exd4 5.Nxd4 Bb4 6.Bg5 h6 7.Bh4 Bxc3+ 8.bxc3 Ne5 - Nenarokov Variation (1904) [+0.11] · 20 parties

│ └── A28f - 4.e3 - Four Knights [-0.02] · 251 parties

│ ├── A28f - 4…* - Four Knights · 103 parties

│ └── A28h - 4…Bb4 - Four Knights (1906) [+0.00] · 148 parties

│ ├── A28h - 5.* - Four Knights · 38 parties

│ └── A28i - 5.Qc2 - Four Knights (1935) [-0.04] · 110 parties

│ ├── A28i - 5…* - Four Knights · 36 parties

│ ├── A28j - 5…Bxc3 - Romanishin Variation (1965) [+0.12] · 66 parties

│ └── A28k - 5…O-O 6.Nd5 Re8 7.Qf5 - Stean Variation (1979) [-0.02] · 8 parties

├── A29 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 - English [+0.19] · 814 parties

│ ├── A29a - 4…* - Four Knights (1931) [+0.24] · 73 parties

│ ├── A29b - 4…g6 - Four Knights (1914) [+0.48] · 21 parties

│ │ ├── A29b - 5.* - Four Knights · 11 parties

│ │ └── A29f - 5.d4 - Four Knights (1936) [+0.29] · 10 parties

│ ├── A29c - 4…d5 - Four Knights [+0.10] · 479 parties

│ │ └── A29g - 5.cxd5 - Four Knights [+0.11] · 479 parties

│ │ └── A29k - 5…Nxd5 - Four Knights (1914) [+0.11] · 479 parties

│ │ ├── A29k - 6.* - Four Knights · 18 parties

│ │ └── A29n - 6.Bg2 - Four Knights (1936) [+0.12] · 461 parties

│ │ ├── A29n - 6…* - Four Knights · 50 parties

│ │ ├── A29q - 6…Be6 - Four Knights (1902) [+0.51] · 69 parties

│ │ └── A29r - 6…Nb6 - Four Knights (1936) [+0.23] · 342 parties

│ │ ├── A29r - 7.* - Four Knights · 34 parties

│ │ └── A29t - 7.O-O - Four Knights (1940) [+0.19] · 308 parties

│ │ ├── A29t - 7…* - Four Knights · 9 parties

│ │ └── A29u - 7…Be7 - Four Knights (1936) [+0.16] · 299 parties

│ │ ├── A29u - 8.* - Four Knights · 23 parties

│ │ ├── A29v - 8.a3 - Four Knights (1907) [+0.19] · 108 parties

│ │ ├── A29w - 8.d3 - Four Knights (1934) [+0.17] · 144 parties

│ │ │ ├── A29w - 8…* - Four Knights · 18 parties

│ │ │ └── A29y - 8…O-O - Four Knights (1972) [+0.14] · 126 parties

│ │ └── A29x - 8.Rb1 - Four Knights (1993) [+0.12] · 24 parties

│ ├── A29d - 4…Bc5 - Four Knights (1930) [+0.31] · 63 parties

│ │ ├── A29d - 5.* - Four Knights · 9 parties

│ │ └── A29h - 5.Bg2 - Four Knights (1925) [+0.28] · 54 parties

│ │ ├── A29h - 5…* - Four Knights · 18 parties

│ │ └── A29l - 5…d6 6.O-O - Four Knights (1931) [+0.31] · 36 parties

│ │ ├── A29l - 6…* - Four Knights · 9 parties

│ │ └── A29o - 6…O-O - Four Knights (1937) [+0.26] · 27 parties

│ │ ├── A29o - 7.* - Four Knights · 11 parties

│ │ └── A29s - 7.d3 - Four Knights (1925) [+0.26] · 16 parties

│ └── A29e - 4…Bb4 - Four Knights (1969) [+0.20] · 180 parties

│ ├── A29e - 5.* - Four Knights · 1 partie

│ ├── A29i - 5.Nd5 - Four Knights (1971) [+0.09] · 59 parties

│ └── A29j - 5.Bg2 - Four Knights (1940) [+0.10] · 120 parties

│ ├── A29j - 5…* - Four Knights · 23 parties

│ └── A29m - 5…O-O 6.O-O - Main Line 6.O-O (1938) [+0.20] · 97 parties

│ ├── A29m - 6…* - Four Knights, Main Line 6.O-O · 59 parties

│ └── A29p - 6…e4 - Four Knights, Main Line 6.O-O e4 (1962) [+0.11] · 38 parties

├── A30 - 1.c4 c5 - Symmetrical Variation [+0.24] · 1066 parties

│ ├── A30a - 2.b3 - Symmetrical (1958) [+0.02] · 7 parties

│ ├── A30a - 2.g3 - Symmetrical (1911) [+0.32] · 46 parties

│ │ ├── A30a - 2…* - Symmetrical · 26 parties

│ │ └── A30a - 2…g6 - Symmetrical (1956) [+0.22] · 20 parties

│ └── A30b - 2.Nf3 - Symmetrical Variation (1926) [+0.28] · 1015 parties

│ ├── A30b - 2…* - Symmetrical Variation · 5 parties

│ ├── A30b - 2…Nc6 - Symmetrical (1928) [+0.28] · 47 parties

│ ├── A30b - 2…b6 - Symmetrical (2000) [+0.41] · 8 parties

│ │ ├── A30b - 3.* - Symmetrical · 2 parties

│ │ └── A30b - 3.g3 - Symmetrical (1983) [+0.39] · 6 parties

│ │ ├── A30b - 3…* - Symmetrical · 1 partie

│ │ └── A30b - 3…Bb7 4.Bg2 - Symmetrical (1968) [+0.28] · 5 parties

│ ├── A30b - 2…g6 - Symmetrical (1904) [+0.46] · 29 parties

│ └── A30c - 2…Nf6 - Symmetrical (1927) [+0.26] · 926 parties

│ ├── A30c - 3.* - Symmetrical · 27 parties

│ └── A30d - 3.g3 - Symmetrical (1923) [+0.21] · 899 parties (dont 1 ici)

│ ├── A30d - 3…* - Symmetrical · 159 parties

│ └── A30e - 3…b6 - b6 System [+0.35] · 739 parties

│ └── A30e - 4.Bg2 Bb7 - Symmetrical, b6 System (1930) [+0.33] · 739 parties

│ ├── A30e - 5.* - Symmetrical, b6 System · 2 parties

│ ├── A30e - 5.Nc3 - Symmetrical, b6 System (1931) [+0.27] · 3 parties

│ └── A30e - 5.O-O - Symmetrical, b6 System (1945) [+0.30] · 734 parties

│ ├── A30e - 5…* - Symmetrical, b6 System · 5 parties

│ ├── A30f - 5…g6 - Symmetrical, Double Fianchetto (1925) [+0.27] · 275 parties

│ │ ├── A30f - 6.* - Symmetrical, Double Fianchetto · 50 parties

│ │ ├── A30f - 6.Nc3 Bg7 - Symmetrical, Double Fianchetto (1922) [+0.27] · 87 parties

│ │ └── A30g - 6.b3 - Symmetrical, Mutual Double Fianchetto (1969) [+0.17] · 138 parties

│ │ ├── A30g - 6…* - Symmetrical, Mutual Double Fianchetto · 2 parties

│ │ └── A30g - 6…Bg7 7.Bb2 O-O - Symmetrical, Mutual Double Fianchetto (1925) [+0.20] · 136 parties

│ │ ├── A30g - 8.* - Symmetrical, Mutual Double Fianchetto · 53 parties

│ │ └── A30g - 8.Nc3 - Symmetrical, Mutual Double Fianchetto (1925) [+0.21] · 83 parties

│ │ ├── A30g - 8…* - Symmetrical, Mutual Double Fianchetto · 59 parties

│ │ └── A30g - 8…d5 - Symmetrical, Mutual Double Fianchetto with …d5 (1934) [+0.17] · 24 parties

│ └── A30h - 5…e6 - Symmetrical, Hedgehog System (1927) [+0.34] · 454 parties

│ ├── A30h - 6.* - Symmetrical, Hedgehog System · 47 parties

│ └── A30h - 6.Nc3 - Symmetrical, Hedgehog System (1929) [+0.31] · 407 parties

│ ├── A30h - 6…* - Symmetrical, Hedgehog System · 13 parties

│ ├── A30i - 6…a6 - Symmetrical, Hedgehog (1934) [+0.48] · 26 parties

│ ├── A30j - 6…d6 - Symmetrical, Hedgehog (1990) [+0.49] · 6 parties

│ │ ├── A30j - 7.* - Symmetrical, Hedgehog · 4 parties

│ │ ├── A30k - 7.b3 - Symmetrical, Hedgehog (1996) [+0.36] · 1 partie

│ │ └── A30l - 7.d4 - Symmetrical, Hedgehog (2011) [+0.35] · 1 partie

│ └── A30m - 6…Be7 - Symmetrical, Hedgehog System (1926) [+0.31] · 362 parties

│ ├── A30m - 7.* - Symmetrical, Hedgehog System · 18 parties

│ ├── A30n - 7.Re1 - Symmetrical, Hedgehog (1948) [+0.25] · 59 parties

│ │ ├── A30n - 7…* - Symmetrical, Hedgehog · 35 parties

│ │ └── A30o - 7…d5 - Symmetrical, Hedgehog (1960) [+0.21] · 24 parties

│ ├── A30p - 7.b3 - Symmetrical, Hedgehog (1927) [+0.11] · 69 parties

│ │ ├── A30p - 7…* - Symmetrical, Hedgehog · 14 parties

│ │ └── A30p - 7…O-O - Symmetrical, Hedgehog (1946) [+0.21] · 55 parties

│ │ ├── A30p - 8.* - Symmetrical, Hedgehog · 36 parties

│ │ └── A30p - 8.Bb2 d6 - Symmetrical, Hedgehog (1927) [+0.34] · 19 parties

│ └── A30q - 7.d4 - Symmetrical, Hedgehog (1930) [+0.28] · 216 parties

│ ├── A30q - 7…* - Symmetrical, Hedgehog · 34 parties

│ └── A30r - 7…cxd4 8.Qxd4 - Symmetrical, Hedgehog [+0.27] · 182 parties

│ ├── A30s - 8…O-O - Symmetrical, Hedgehog (1954) [+0.31] · 52 parties

│ │ ├── A30s - 9.* - Symmetrical, Hedgehog · 30 parties

│ │ └── A30s - 9.Rd1 Nc6 - Symmetrical, Hedgehog (1953) [+0.50] · 22 parties

│ ├── A30t - 8…Nc6 - Symmetrical, Hedgehog (1953) [+0.51] · 53 parties

│ └── A30u - 8…d6 - Symmetrical, Hedgehog (1975) [+0.29] · 77 parties

│ ├── A30u - 9.* - Symmetrical, Hedgehog · 25 parties

│ ├── A30v - 9.b3 - Symmetrical, Hedgehog (1979) [+0.30] · 17 parties

│ │ ├── A30v - 9…* - Symmetrical, Hedgehog · 9 parties

│ │ └── A30v - 9…Nbd7 - Symmetrical, Hedgehog (1978) [+0.23] · 8 parties

│ │ ├── A30v - 10.* - Symmetrical, Hedgehog · 5 parties

│ │ └── A30v - 10.Nb5 - Symmetrical, Hedgehog (1988) [+0.25] · 3 parties

│ └── A30w - 9.Rd1 - Symmetrical, Hedgehog (1980) [+0.27] · 35 parties

│ ├── A30w - 9…* - Symmetrical, Hedgehog · 10 parties

│ └── A30x - 9…a6 10.b3 Nbd7 - Flexible Formation (1975) [+0.30] · 25 parties

│ ├── A30x - 11.* - Symmetrical, Hedgehog, Flexible Formation · 7 parties

│ └── A30y - 11.e4 - Symmetrical, Hedgehog, Flexible Formation (1982) [+0.35] · 18 parties

│ ├── A30y - 11…* - Symmetrical, Hedgehog, Flexible Formation · 14 parties

│ ├── A30y - 11…O-O - Symmetrical, Hedgehog, Flexible Formation (1989) [+0.74] · 1 partie

│ └── A30y - 11…Qc7 - Symmetrical, Hedgehog, Flexible Formation (1975) [+0.33] · 3 parties

├── A31 - 1.c4 c5 2.Nf3 Nf6 3.d4 - English (1955) [+0.12] · 235 parties

│ ├── A31a - 3…* - Symmetrical, Two Knights [+0.07] · 2 parties

│ ├── A31c - 3…g6 - Symmetrical, Two Knights (1928) [+0.55] · 29 parties

│ │ ├── A31c - 4.* - Symmetrical, Two Knights · 7 parties

│ │ ├── A31e - 4.d5 - Symmetrical, Two Knights (1941) [+0.52] · 7 parties

│ │ └── A31f - 4.Nc3 - Symmetrical, Two Knights (1928) [+0.39] · 15 parties

│ └── A31d - 3…cxd4 - Symmetrical, Two Knights [+0.10] · 204 parties

│ └── A31g - 4.Nxd4 - Symmetrical, Two Knights (1929) [+0.12] · 204 parties

│ ├── A31a - 4…Nc6 - Symmetrical, Two Knights (1936) [+0.29] · 92 parties

│ │ ├── A31a - 5.* - Symmetrical, Two Knights · 38 parties

│ │ └── A31m - 5.Nc3 - Symmetrical, Two Knights (1911) [+0.34] · 54 parties

│ │ ├── A31m - 5…* - Symmetrical, Two Knights · 37 parties

│ │ └── A31p - 5…g6 - Symmetrical, Two Knights (1925) [+0.39] · 17 parties

│ ├── A31g - 4…* - Symmetrical, Two Knights · 28 parties

│ ├── A31h - 4…b6 - Symmetrical, Two Knights (1928) [+0.42] · 34 parties

│ │ ├── A31h - 5.* - Symmetrical, Two Knights · 7 parties

│ │ └── A31n - 5.Nc3 Bb7 - Symmetrical, Two Knights (1925) [+0.46] · 27 parties

│ ├── A31i - 4…g6 - Symmetrical, Two Knights (1947) [+0.34] · 29 parties

│ │ ├── A31i - 5.* - Symmetrical, Two Knights · 1 partie

│ │ └── A31k - 5.Nc3 - Symmetrical, Two Knights (1932) [+0.32] · 28 parties

│ │ ├── A31k - 5…* - Symmetrical, Two Knights · 20 parties

│ │ └── A31o - 5…Bg7 - Symmetrical, Two Knights (1927) [+0.69] · 8 parties

│ │ ├── A31o - 6.* - Symmetrical, Two Knights · 1 partie

│ │ └── A31q - 6.e4 - Symmetrical, Two Knights (1927) [+0.63] · 7 parties

│ └── A31j - 4…e5 - Symmetrical, Two Knights (1955) [+0.35] · 21 parties

│ ├── A31j - 5.* - Symmetrical, Two Knights · 7 parties

│ └── A31l - 5.Nb5 - Symmetrical, Two Knights (1948) [+0.30] · 14 parties

├── A32 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 - English [+0.13] · 337 parties

│ ├── A32a - 5.* - Symmetrical, Two Knights (1931) [+0.13] · 4 parties

│ ├── A32b - 5.e3 - Symmetrical, Two Knights (1943) [+0.13] · 16 parties

│ ├── A32c - 5.g3 - Symmetrical, Two Knights (1955) [+0.18] · 150 parties

│ │ ├── A32c - 5…* - Symmetrical, Two Knights · 4 parties

│ │ ├── A32e - 5…a6 - Symmetrical, Two Knights [+0.50] · 9 parties

│ │ │ └── A32n - 6.Bg2 - Symmetrical, Two Knights (1960) [+0.48] · 9 parties

│ │ ├── A32f - 5…d5 - Symmetrical, Two Knights (1957) [+0.22] · 57 parties

│ │ │ ├── A32f - 6.* - Symmetrical, Two Knights · 1 partie

│ │ │ └── A32o - 6.Bg2 - Symmetrical, Two Knights (1943) [+0.20] · 56 parties

│ │ │ ├── A32o - 6…* - Symmetrical, Two Knights · 23 parties

│ │ │ └── A32w - 6…e5 7.Nf3 - Symmetrical, Two Knights (1948) [+0.24] · 33 parties

│ │ ├── A32g - 5…Qb6 - Symmetrical, Two Knights [+0.38] · 8 parties

│ │ │ └── A32q - 6.Bg2 - Symmetrical, Two Knights (1936) [+0.25] · 8 parties

│ │ ├── A32h - 5…Qc7 - Symmetrical, Two Knights (1945) [+0.43] · 24 parties

│ │ ├── A32i - 5…Nc6 - Symmetrical, Two Knights [+0.39] · 28 parties

│ │ │ └── A32r - 6.Bg2 - Symmetrical, Two Knights (1928) [+0.31] · 28 parties

│ │ └── A32l - 5…Bb4+ - Symmetrical, Two Knights (1928) [+0.24] · 20 parties

│ └── A32d - 5.Nc3 - Symmetrical, Two Knights (1920) [+0.15] · 168 parties

│ ├── A32d - 5…* - Symmetrical, Two Knights · 4 parties

│ ├── A32j - 5…d5 - Symmetrical, Two Knights (1907) [+0.16] · 31 parties

│ ├── A32k - 5…a6 - Symmetrical, Two Knights (1926) [+0.47] · 30 parties

│ │ ├── A32k - 6.* - Symmetrical, Two Knights · 22 parties

│ │ └── A32p - 6.g3 - Symmetrical, Two Knights (1962) [+0.36] · 8 parties

│ └── A32m - 5…Bb4 - Symmetrical, Two Knights (1925) [+0.21] · 103 parties

│ ├── A32m - 6.* - Symmetrical, Two Knights · 21 parties

│ ├── A32s - 6.Qb3 - Symmetrical, Two Knights (1922) [+0.13] · 20 parties

│ ├── A32t - 6.Nb5 - Symmetrical, Two Knights (1929) [-0.20] · 19 parties

│ └── A32u - 6.Bd2 - Symmetrical, Two Knights (1922) [+0.08] · 43 parties

│ ├── A32u - 6…* - Symmetrical, Two Knights · 15 parties

│ └── A32v - 6…Nc6 - Symmetrical, Two Knights (1920) [+0.04] · 28 parties

├── A33 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 - English [+0.32] · 313 parties

│ ├── A33a - 6.* - Symmetrical, Two Knights (1941) [+0.25] · 12 parties

│ ├── A33b - 6.Bf4 - Symmetrical, Two Knights (1955) [+0.16] · 24 parties

│ ├── A33c - 6.Bg5 - Symmetrical, Two Knights (1952) [-0.01] · 13 parties

│ ├── A33d - 6.e3 - Symmetrical, Two Knights (1947) [+0.08] · 33 parties

│ ├── A33e - 6.a3 - Symmetrical, Two Knights (1949) [+0.22] · 68 parties

│ │ ├── A33e - 6…* - Symmetrical, Two Knights · 39 parties

│ │ └── A33f - 6…Bc5 - Symmetrical, Two Knights (1990) [+0.24] · 29 parties

│ ├── A33g - 6.Ndb5 - Symmetrical, Two Knights (1927) [-0.12] · 50 parties

│ │ ├── A33g - 6…* - Symmetrical, Two Knights · 13 parties

│ │ ├── A33h - 6…Bb4 - Symmetrical, Two Knights (1923) [+0.43] · 20 parties

│ │ └── A33i - 6…d5 - Symmetrical, Two Knights (1924) [-0.11] · 17 parties

│ │ ├── A33i - 7.* - Symmetrical, Two Knights · 6 parties

│ │ └── A33j - 7.Bf4 e5 8.cxd5 exf4 9.dxc6 bxc6 10.Qxd8+ Kxd8 - Symmetrical, Two Knights (1939) [-0.19] · 11 parties

│ └── A33k - 6.g3 - Symmetrical, Two Knights (1946) [+0.32] · 113 parties

│ ├── A33k - 6…* - Symmetrical, Two Knights · 7 parties

│ ├── A33l - 6…a6 - Symmetrical, Two Knights (1954) [+0.67] · 3 parties

│ ├── A33m - 6…Bb4 - Symmetrical, Two Knights (1927) [+0.56] · 11 parties

│ ├── A33n - 6…Bc5 - Symmetrical, Two Knights (1954) [+0.29] · 15 parties

│ └── A33o - 6…Qb6 - Symmetrical, Geller Variation (1950) [+0.30] · 77 parties

│ ├── A33o - 7.* - Symmetrical, Geller Variation · 41 parties

│ └── A33p - 7.Nb3 - Symmetrical, Geller (1968) [+0.25] · 36 parties

│ ├── A33p - 7…* - Symmetrical, Geller · 11 parties

│ └── A33q - 7…Ne5 - Symmetrical, Geller (1970) [+0.00] · 25 parties

├── A35 - 1.c4 c5 2.Nc3 Nc6 - Symmetrical Variation, Two Knights Variation [+0.25] · 361 parties

│ ├── A35b - 3.e3 - Symmetrical (1960) [+0.16] · 3 parties

│ └── A35c - 3.Nf3 - Symmetrical (1906) [+0.26] · 359 parties

│ ├── A35c - 3…* - Symmetrical · 26 parties

│ ├── A35d - 3…g6 - Symmetrical (1924) [+0.35] · 151 parties

│ │ ├── A35d - 4.* - Symmetrical · 27 parties

│ │ └── A35e - 4.e3 - Symmetrical (1951) [+0.45] · 124 parties

│ │ ├── A35e - 4…* - Symmetrical · 76 parties

│ │ └── A35f - 4…Bg7 - Symmetrical (1947) [+0.53] · 48 parties

│ └── A35g - 3…Nf6 - Four Knights (1958) [+0.32] · 182 parties

│ ├── A35g - 4.* - Symmetrical, Four Knights · 2 parties

│ ├── A35g - 4.d4 - Symmetrical, Four Knights (1939) [+0.25] · 3 parties

│ ├── A35h - 4.e3 - Symmetrical, Four Knights (1945) [+0.13] · 73 parties

│ │ ├── A35h - 4…* - Symmetrical, Four Knights · 19 parties

│ │ └── A35i - 4…e5 - Symmetrical, Four Knights (1940) [+0.21] · 54 parties

│ └── A35j - 4.g3 - Symmetrical, Four Knights (1927) [+0.28] · 104 parties

│ ├── A35j - 4…* - Symmetrical, Four Knights · 21 parties

│ └── A35k - 4…d5 - Symmetrical, Four Knights (1992) [+0.27] · 83 parties

│ ├── A35k - 5.* - Symmetrical, Four Knights · 18 parties

│ └── A35l - 5.cxd5 - Symmetrical, Four Knights (1951) [+0.02] · 65 parties

├── A36 - 1.c4 c5 2.Nc3 Nc6 3.g3 - Symmetrical Variation, Two Knights, Fianchetto Variation [+0.21] · 755 parties

│ ├── A36a - 3…* - Symmetrical Variation, Two Knights, Fianchetto Variation (1964) [+0.26] · 1 partie

│ ├── A36b - 3…Nf6 - Symmetrical (1925) [+0.32] · 34 parties

│ ├── A36c - 3…e6 - Symmetrical (1967) [+0.31] · 39 parties

│ │ ├── A36c - 4.* - Symmetrical · 1 partie

│ │ └── A36c - 4.Nf3 - Symmetrical (1923) [+0.27] · 38 parties

│ │ ├── A36c - 4…* - Symmetrical · 1 partie

│ │ └── A36c - 4…Nf6 - Keres-Parma System (1905) [+0.27] · 37 parties

│ │ ├── A36c - 5.* - Symmetrical, Keres-Parma System · 6 parties

│ │ └── A36d - 5.Bg2 Be7 6.O-O d5 7.cxd5 Nxd5 - Symmetrical, Keres-Parma, Main Line Exchange (1912) [+0.49] · 31 parties

│ └── A36e - 3…g6 - Symmetrical (1955) [+0.21] · 681 parties

│ ├── A36e - 4.* - Symmetrical · 9 parties

│ └── A36e - 4.Bg2 - Symmetrical (1960) [+0.20] · 672 parties

│ ├── A36e - 4…* - Symmetrical · 1 partie

│ └── A36e - 4…Bg7 - Symmetrical (1945) [+0.22] · 671 parties

│ ├── A36e - 5.* - Symmetrical · 39 parties

│ ├── A36f - 5.d3 - Symmetrical (1925) [-0.05] · 98 parties

│ ├── A36g - 5.a3 - Symmetrical (1957) [+0.13] · 105 parties

│ │ ├── A36g - 5…* - Symmetrical · 52 parties

│ │ ├── A36h - 5…e6 - Symmetrical (1958) [+0.18] · 24 parties

│ │ └── A36i - 5…d6 - Symmetrical (1957) [+0.17] · 29 parties

│ ├── A36j - 5.b3 - Symmetrical (1961) [+0.08] · 22 parties

│ ├── A36k - 5.e3 - Symmetrical (1956) [+0.17] · 170 parties

│ │ ├── A36k - 5…* - Symmetrical · 71 parties

│ │ ├── A36l - 5…e5 - English Opening: Symmetrical Variation, Botvinnik System Reversed, with e3 (1933) [+0.28] · 32 parties

│ │ └── A36m - 5…e6 - Symmetrical (2018) [+0.19] · 67 parties

│ │ ├── A36m - 6.* - Symmetrical · 3 parties

│ │ └── A36m - 6.Nge2 - Symmetrical [+0.17] · 64 parties

│ │ └── A36m - 6…Nge7 - Symmetrical (1947) [+0.16] · 64 parties

│ └── A36n - 5.e4 - Botvinnik System (1934) [-0.15] · 237 parties

│ ├── A36n - 5…* - Symmetrical, Botvinnik System · 6 parties

│ ├── A36o - 5…Nf6 - Symmetrical, Botvinnik (1959) [-0.07] · 26 parties

│ │ ├── A36o - 6.* - Symmetrical, Botvinnik · 4 parties

│ │ └── A36o - 6.Nge2 - Symmetrical, Botvinnik (1938) [-0.09] · 22 parties

│ ├── A36p - 5…e6 - Symmetrical, Botvinnik (1969) [-0.12] · 40 parties

│ │ ├── A36p - 6.* - Symmetrical, Botvinnik · 2 parties

│ │ └── A36p - 6.Nge2 Nge7 - Symmetrical, Botvinnik (1958) [-0.01] · 38 parties

│ │ ├── A36p - 7.* - Symmetrical, Botvinnik · 7 parties

│ │ └── A36q - 7.O-O O-O 8.d3 - Symmetrical, Botvinnik (1947) [-0.14] · 31 parties

│ │ ├── A36q - 8…* - Symmetrical, Botvinnik · 7 parties

│ │ └── A36r - 8…d6 - Symmetrical, Botvinnik (1951) [-0.08] · 24 parties

│ └── A36s - 5…d6 - Symmetrical, Botvinnik (1963) [-0.12] · 165 parties

│ ├── A36s - 6.* - Symmetrical, Botvinnik · 4 parties

│ └── A36t - 6.Nge2 - Symmetrical, Botvinnik (1933) [-0.20] · 161 parties

│ ├── A36t - 6…* - Symmetrical, Botvinnik · 18 parties

│ └── A36u - 6…Nf6 - Symmetrical, Botvinnik (1955) [-0.05] · 143 parties

│ ├── A36u - 7.* - Symmetrical, Botvinnik · 15 parties

│ └── A36v - 7.O-O O-O - Symmetrical, Botvinnik System (1952) [-0.15] · 128 parties

│ ├── A36v - 8.* - Symmetrical, Botvinnik System · 37 parties

│ └── A36w - 8.d3 - Symmetrical, Botvinnik System (1953) [-0.07] · 91 parties

│ ├── A36w - 8…* - Symmetrical, Botvinnik System · 23 parties

│ ├── A36x - 8…Rb8 - Symmetrical, Botvinnik System (1956) [-0.02] · 23 parties

│ ├── A36y - 8…Ne8 - Symmetrical, Botvinnik System (1947) [+0.11] · 25 parties

│ └── A36z - 8…a6 - Symmetrical, Botvinnik System (1949) [+0.02] · 20 parties

├── A37 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 - Symmetrical Variation, Three Knights, Fianchetto Variation [+0.18] · 579 parties

│ ├── A37a - 5…* - Symmetrical Variation, Three Knights, Fianchetto Variation (1956) [+0.20] · 15 parties

│ ├── A37b - 5…a6 - Symmetrical (1927) [+0.26] · 37 parties

│ ├── A37c - 5…Nh6 - Symmetrical (1927) [+0.22] · 39 parties

│ │ ├── A37c - 6.* - Symmetrical · 15 parties

│ │ └── A37d - 6.O-O - Symmetrical (1954) [+0.16] · 24 parties

│ ├── A37e - 5…d6 - Symmetrical (1956) [+0.16] · 172 parties

│ │ ├── A37e - 6.* - Symmetrical · 15 parties

│ │ ├── A37f - 6.d3 - Symmetrical (1921) [-0.16] · 42 parties

│ │ └── A37g - 6.O-O - Symmetrical (1939) [+0.13] · 115 parties

│ │ ├── A37g - 6…* - Symmetrical · 90 parties

│ │ └── A37h - 6…Nh6 - Symmetrical (1955) [+0.17] · 25 parties

│ ├── A37i - 5…e6 - Symmetrical (1962) [+0.14] · 164 parties

│ │ ├── A37i - 6.* - Symmetrical · 25 parties

│ │ ├── A37j - 6.d3 - Symmetrical (1955) [-0.14] · 11 parties

│ │ ├── A37k - 6.e3 - Symmetrical (1933) [+0.03] · 5 parties

│ │ └── A37l - 6.O-O - Symmetrical (2012) [+0.08] · 123 parties

│ │ ├── A37l - 6…* - Symmetrical · 4 parties

│ │ └── A37l - 6…Nge7 - Symmetrical (1949) [+0.08] · 119 parties

│ │ ├── A37l - 7.* - Symmetrical · 19 parties

│ │ ├── A37m - 7.e3 - Symmetrical (1944) [+0.07] · 30 parties

│ │ └── A37n - 7.d3 - Symmetrical (1959) [-0.16] · 70 parties

│ │ ├── A37n - 7…* - Symmetrical · 6 parties

│ │ └── A37o - 7…O-O - Symmetrical (1956) [-0.22] · 64 parties

│ │ ├── A37o - 8.* - Symmetrical · 27 parties

│ │ └── A37p - 8.Bd2 - Symmetrical (1957) [-0.24] · 37 parties

│ └── A37q - 5…e5 - Symmetrical Variation, Botvinnik System Reversed, with Nf3 (2002) [+0.31] · 152 parties

│ ├── A37q - 6.* - Symmetrical Variation, Botvinnik System Reversed, with Nf3 · 1 partie

│ ├── A37r - 6.a3 - Symmetrical (1968) [+0.31] · 16 parties

│ ├── A37s - 6.d3 - Symmetrical (1956) [+0.27] · 15 parties

│ │ ├── A37s - 6…* - Symmetrical · 3 parties

│ │ └── A37t - 6…Nge7 - Symmetrical (1957) [+0.31] · 12 parties

│ └── A37u - 6.O-O - Symmetrical [+0.18] · 120 parties

│ ├── A37u - 6…d6 - Symmetrical (1957) [+0.30] · 56 parties

│ │ ├── A37u - 7.* - Symmetrical · 20 parties

│ │ └── A37v - 7.d3 - Symmetrical (1964) [+0.19] · 36 parties

│ │ ├── A37v - 7…* - Symmetrical · 1 partie

│ │ └── A37v - 7…Nge7 - Symmetrical (1954) [+0.20] · 35 parties

│ │ ├── A37v - 8.* - Symmetrical · 15 parties

│ │ └── A37w - 8.a3 - Symmetrical (1957) [+0.27] · 20 parties

│ └── A37x - 6…Nge7 - English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 (1963) [+0.30] · 64 parties

│ ├── A37x - 7.* - Symmetrical Variation, Botvinnik System Reversed, with Nf3 · 26 parties

│ └── A37y - 7.d3 - Symmetrical Variation, Botvinnik System Reversed, with Nf3 [+0.26] · 38 parties

│ └── A37y - 7…O-O - Symmetrical (1958) [+0.29] · 38 parties

│ ├── A37y - 8.* - Symmetrical · 26 parties

│ └── A37y - 8.a3 - Symmetrical (1956) [+0.17] · 12 parties

├── A38 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 - English [+0.41] · 184 parties

│ ├── A38a - 6.* - Symmetrical, Main Line (1923) [+0.30] · 3 parties

│ ├── A38b - 6.d4 - Symmetrical, Main Line (1912) [+0.33] · 11 parties

│ └── A38c - 6.O-O - Symmetrical, Main Line (1959) [+0.27] · 170 parties

│ ├── A38c - 6…* - Symmetrical, Main Line · 1 partie

│ ├── A38d - 6…d5 - Symmetrical, Main Line (1956) [+0.66] · 5 parties

│ ├── A38e - 6…d6 - Symmetrical, Main Line (1947) [+0.24] · 15 parties

│ └── A38f - 6…O-O - Symmetrical, Main Line (1933) [+0.38] · 149 parties

│ ├── A38f - 7.* - Symmetrical, Main Line · 9 parties

│ ├── A38g - 7.Rb1 - Symmetrical, Main Line (1960) [-0.39] · 5 parties

│ ├── A38h - 7.b3 - English Opening: Symmetrical Variation, Double Fianchetto (1953) [-0.27] · 9 parties

│ ├── A38i - 7.a3 - Symmetrical, Main Line (1952) [-0.29] · 18 parties

│ │ ├── A38i - 7…* - Symmetrical, Main Line · 10 parties

│ │ └── A38j - 7…d6 - Symmetrical, Main Line (1957) [+0.05] · 8 parties

│ └── A38k - 7.d3 - Symmetrical, Main Line (1945) [+0.04] · 108 parties

│ ├── A38k - 7…* - Symmetrical, Main Line · 11 parties

│ ├── A38l - 7…a6 - Symmetrical, Main Line (1958) [+0.25] · 10 parties

│ ├── A38m - 7…d5 - Symmetrical, Main Line (1954) [+0.05] · 15 parties

│ └── A38n - 7…d6 - Symmetrical, Main Line (1914) [+0.01] · 72 parties

│ ├── A38n - 8.* - Symmetrical, Main Line · 12 parties

│ ├── A38o - 8.Rb1 - Symmetrical, Main Line (1955) [-0.01] · 14 parties

│ ├── A38p - 8.Bd2 - Symmetrical, Main Line (1920) [+0.00] · 23 parties

│ └── A38q - 8.a3 - Symmetrical, Main Line (1939) [+0.02] · 23 parties

│ ├── A38q - 8…* - Symmetrical, Main Line · 17 parties

│ └── A38r - 8…a6 - Symmetrical, Main Line (1957) [+0.02] · 6 parties

└── A39 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4 - English [+0.23] · 325 parties

├── A39a - 7…* - Symmetrical, Main Line 7.d4 (1968) [+0.37] · 1 partie

└── A39b - 7…cxd4 - Symmetrical, Main Line 7.d4 [+0.39] · 325 parties

└── A39c - 8.Nxd4 - Symmetrical, Main Line 7.d4 (1951) [+0.43] · 325 parties

├── A39c - 8…* - Symmetrical, Main Line 7.d4 · 6 parties

├── A39d - 8…Qa5 - Symmetrical, Main Line 7.d4 (1939) [+0.37] · 52 parties

├── A39e - 8…Qb6 - Symmetrical, Main Line 7.d4 (1931) [+0.57] · 23 parties

│ ├── A39e - 9.* - Symmetrical, Main Line 7.d4 · 11 parties

│ └── A39e - 9.Nc2 - Symmetrical, Main Line 7.d4 (1953) [+0.57] · 12 parties

├── A39f - 8…a6 - Symmetrical, Main Line 7.d4 (1928) [+0.71] · 17 parties

├── A39g - 8…d6 - Symmetrical, Main Line 7.d4 (1942) [+0.67] · 25 parties

├── A39h - 8…Ng4 - Symmetrical, Main Line 7.d4 (1929) [+0.72] · 30 parties

│ ├── A39h - 9.* - Symmetrical, Main Line 7.d4 · 20 parties

│ └── A39i - 9.e3 d6 - Symmetrical, Main Line 7.d4 (1960) [+0.72] · 10 parties

└── A39j - 8…Nxd4 - Symmetrical, Main Line 7.d4 [+0.43] · 172 parties

└── A39j - 9.Qxd4 - Symmetrical, Main Line 7.d4 (1958) [+0.42] · 172 parties

├── A39j - 9…* - Symmetrical, Main Line 7.d4 · 3 parties

└── A39k - 9…d6 - Symmetrical, Main Line 7.d4 (1925) [+0.36] · 169 parties (dont 1 ici)

├── A39k - 10.* - Symmetrical, Main Line 7.d4 · 55 parties

├── A39l - 10.Qd2 - Symmetrical, Main Line 7.d4 (1933) [-0.03] · 38 parties

└── A39m - 10.Qd3 - Symmetrical, Main Line 7.d4 (1928) [+0.41] · 75 parties

├── A39m - 10…* - Symmetrical, Main Line 7.d4 · 18 parties

├── A39n - 10…Bf5 - Symmetrical, Main Line 7.d4 (1957) [+0.44] · 11 parties

├── A39o - 10…Rb8 - Symmetrical, Main Line 7.d4 (1934) [+0.45] · 5 parties

└── A39p - 10…a6 - Symmetrical, Main Line 7.d4 (1961) [+0.37] · 41 parties

├── A39p - 11.* - Symmetrical, Main Line 7.d4 · 13 parties

└── A39q - 11.Bd2 - Symmetrical, Main Line 7.d4 (1968) [+0.38] · 28 parties

├── A39q - 11…* - Symmetrical, Main Line 7.d4 · 4 parties

└── A39q - 11…Rb8 - Symmetrical, Main Line 7.d4 (1966) [+0.40] · 24 parties

├── A39q - 12.* - Symmetrical, Main Line 7.d4 · 9 parties

└── A39r - 12.Rac1 - Symmetrical, Main Line 7.d4 (1958) [+0.42] · 15 parties

Les parties, variante par variante

11143 partiesA13 - 1.c4 e6 - Agincourt Defense

21066 partiesA30 - 1.c4 c5 - Symmetrical Variation

3814 partiesA29 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 - English

4798 partiesA16 - 1.c4 Nf6 2.Nc3 - Anglo-Indian Defense, Queen's Knight Variation

5755 partiesA36 - 1.c4 c5 2.Nc3 Nc6 3.g3 - Symmetrical Variation, Two Knights, Fianchetto Variation

6685 partiesA21 - 1.c4 e5 2.Nc3 - King's English Variation, Reversed Sicilian

7680 partiesA28 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 - English

8657 partiesA11 - 1.c4 c6 - Caro-Kann Defensive System

9625 partiesA25 - 1.c4 e5 2.Nc3 Nc6 - King's English Variation, Reversed Closed Sicilian

10592 partiesA14 - 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 - Neo-Catalan Declined

11579 partiesA37 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 - Symmetrical Variation, Three Knights, Fianchetto Variation

12520 partiesA15 - 1.c4 Nf6 - Anglo-Indian Defense

13520 partiesA20 - 1.c4 e5 - King's English Variation

14507 partiesA17 - 1.c4 Nf6 2.Nc3 e6 - Anglo-Indian Defense, Hedgehog System

15454 partiesA10 - 1.c4 - English Opening

16405 partiesA22 - 1.c4 e5 2.Nc3 Nf6 - King's English Variation, Two Knights Variation

17361 partiesA35 - 1.c4 c5 2.Nc3 Nc6 - Symmetrical Variation, Two Knights Variation

18360 partiesA26 - 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 - King's English Variation, Closed System, Full Symmetry

19337 partiesA32 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 - English

20325 partiesA39 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4 - English

21313 partiesA33 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 - English

22305 partiesA12 - 1.c4 c6 2.Nf3 d5 3.b3 - English

23245 partiesA18 - 1.c4 Nf6 2.Nc3 e6 3.e4 - English (1927)

24235 partiesA31 - 1.c4 c5 2.Nf3 Nf6 3.d4 - English (1955)

25226 partiesA24 - 1.c4 e5 2.Nc3 Nf6 3.g3 g6 - King's English Variation, Two Knights Variation, Fianchetto Line (1947)

26184 partiesA38 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 - English

27163 partiesA27 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 - King's English Variation, Three Knights System (1934)

28139 partiesA23 - 1.c4 e5 2.Nc3 Nf6 3.g3 c6 - King's English Variation, Two Knights Variation, Keres Variation

29103 partiesA19 - 1.c4 Nf6 2.Nc3 e6 3.e4 c5 - English

A10 - 1.c4 - English Opening (453)

+0.12 position égale. Base Masters : Blancs 33.6%, Nulles 43.9%, Noirs 22.5%. Coups candidats 1...Nf6 (27.7% — Blancs: 35.4% | Nulles: 43.4% | Noirs: 21.2%)1...e5 (25.1% — Blancs: 29.1% | Nulles: 47.8% | Noirs: 23.1%)1...e6 (15.5% — Blancs: 36.0% | Nulles: 42.3% | Noirs: 21.7%)1...c5 (11.1% — Blancs: 34.0% | Nulles: 45.1% | Noirs: 20.9%)1...c6 (8.0% — Blancs: 36.0% | Nulles: 44.5% | Noirs: 19.5%)1...g6 (7.7% — Blancs: 32.8% | Nulles: 39.1% | Noirs: 28.1%) auto Analyse coup par coup — 1 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre● d5 (1v0)— Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1…
A11 - 1.c4 c6 - Caro-Kann Defensive System (657)

Analyse coup par coup — 2 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...c6 Contrôle b5, d5. Prépare d5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes—● b7→c6, d7→c6Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre—— Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 0)Bc8● Bc8 Non développé (mob. 0)Bf8● Bf8 Non développé (mob. 0)Paire de fous● Oui● OuiNon développées6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1)6 (● b8, ● g8, ● c8, ● f8, ●…
A12 - 1.c4 c6 2.Nf3 d5 3.b3 - English (305)

Analyse coup par coup — 6 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...Nf6 Contrôle e4, d5. 2.g3 Prépare le fianchetto du Fou (Bg2). 2...c6 Contrôle b5, d5. Prépare d5. 3.Nf3 Contrôle d4, f4, d5, e5. 3...d5 Avancée centrale — contrôle c4, e4. Prépare c5, e5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes● a2→b3, b3→c4● c6→d5, b7→c6Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre● d4 (1v0), ● e5 (1v0)● d5 (2v1), ● e4 (1v0) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 2)Bf1● Bf1 Non…
A13 - 1.c4 e6 - Agincourt Defense (1143)

Analyse coup par coup — 2 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes—● d7→e6, f7→e6Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre—— Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 0)Bc8● Bc8 Non développé (mob. 0)Bf8● Bf8 Non développé (mob. 5)Paire de fous● Oui● OuiNon développées6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1)6 (● b8, ● g8,…
A14 - 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 - Neo-Catalan Declined (592)

Analyse coup par coup — 8 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6. 2.Nf3 Contrôle d4, d5, e5. 2...d5 Avancée centrale — contrôle c4, e4. Prépare c5, e5. 3.g3 Prépare le fianchetto du Fou (Bg2). 3...Nf6 Contrôle c4, e4, c5, f5. 4.Bg2 Contrôle d4, f4, d5, e5. 4...Be7 Contrôle c4, e4, c5, f5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes● f2→g3, h2→g3● e6→d5, f7→e6Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes—● e4 (2v0)Cases faibles——Centre● d4 (1v0), ● e5 (1v0)● d5 (3v1),…
A15 - 1.c4 Nf6 - Anglo-Indian Defense (520)

Base Masters : Blancs 35.4%, Nulles 43.4%, Noirs 21.2%. Coups candidats 2.Nc3 (59.2% — Blancs: 37.3% | Nulles: 41.9% | Noirs: 20.8%)2.Nf3 (17.6% — Blancs: 33.7% | Nulles: 45.9% | Noirs: 20.4%)2.g3 (17.5% — Blancs: 32.6% | Nulles: 41.8% | Noirs: 25.6%)2.d4 (5.3% — Blancs: 28.5% | Nulles: 57.0% | Noirs: 14.5%)2.b3 (0.2% — Blancs: 35.0% | Nulles: 36.0% | Noirs: 29.0%)2.e3 (0.1% — Blancs: 31.2% | Nulles: 43.8% | Noirs: 25.0%) auto Analyse coup par coup — 2 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...Nf6 Contrôle e4, d5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre—● e4 (1v0) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1●…
A16 - 1.c4 Nf6 2.Nc3 - Anglo-Indian Defense, Queen's Knight Variation (798)

Base Masters : Blancs 41.6%, Nulles 39.4%, Noirs 19.1%. Coups candidats 4.g3 (63.3% — Blancs: 44.2% | Nulles: 38.5% | Noirs: 17.3%)4.Nf3 (28.6% — Blancs: 38.6% | Nulles: 40.4% | Noirs: 21.1%)4.e4 (3.8% — Blancs: 24.0% | Nulles: 44.2% | Noirs: 31.7%)4.d4 (3.2% — Blancs: 37.5% | Nulles: 44.3% | Noirs: 18.2%)4.Qb3 (0.5% — Blancs: 53.8% | Nulles: 30.8% | Noirs: 15.4%)4.Qa4+ (0.3% — Blancs: 44.4% | Nulles: 22.2% | Noirs: 33.3%) auto Analyse coup par coup — 6 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...Nf6 Contrôle e4, d5. 2.Nc3 Contrôle e4, d5. 2...d5 Avancée centrale — contrôle c4, e4. Prépare c5, e5. 3.cxd5 Capture en d5 — résout la tension centrale. 3...Nxd5 Capture pion en d5. Structure de pions…
A17 - 1.c4 Nf6 2.Nc3 e6 - Anglo-Indian Defense, Hedgehog System (507)

Base Masters : Blancs 38.5%, Nulles 42.5%, Noirs 19.0%. Coups candidats 3.e4 (50.5% — Blancs: 40.2% | Nulles: 41.1% | Noirs: 18.7%)3.Nf3 (31.9% — Blancs: 37.8% | Nulles: 44.0% | Noirs: 18.2%)3.d4 (14.9% — Blancs: 37.1% | Nulles: 44.1% | Noirs: 18.8%)3.g3 (2.2% — Blancs: 23.7% | Nulles: 39.5% | Noirs: 36.8%)3.e3 (0.4% — Blancs: 34.5% | Nulles: 31.0% | Noirs: 34.5%)3.b3 (0.1%) auto Analyse coup par coup — 4 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...Nf6 Contrôle e4, d5. 2.Nc3 Contrôle e4, d5. 2...e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes—● d7→e6, f7→e6Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes● b5 (2v0)—Cases faibles——Centre—— Colonnes et diagonales…
A18 - 1.c4 Nf6 2.Nc3 e6 3.e4 - English (1927) (245)

Base Masters : Blancs 40.1%, Nulles 41.1%, Noirs 18.8%. Coups candidats 3...d5 (64.3% — Blancs: 41.4% | Nulles: 42.2% | Noirs: 16.4%)3...c5 (28.8% — Blancs: 34.4% | Nulles: 41.7% | Noirs: 23.9%)3...e5 (3.0% — Blancs: 47.2% | Nulles: 33.3% | Noirs: 19.4%)3...d6 (2.1% — Blancs: 59.2% | Nulles: 23.7% | Noirs: 17.1%)3...Nc6 (1.3% — Blancs: 44.4% | Nulles: 31.1% | Noirs: 24.4%)3...Bb4 (0.4% — Blancs: 69.2% | Nulles: 15.4% | Noirs: 15.4%) auto Analyse coup par coup — 5 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6. 2.Nc3 Contrôle e4, d5. 2...Nf6 Contrôle e4, c5, d5, f5. 3.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. Structure de…
A19 - 1.c4 Nf6 2.Nc3 e6 3.e4 c5 - English (103)

Base Masters : Blancs 34.4%, Nulles 41.5%, Noirs 24.2%. Coups candidats 4.e5 (75.3% — Blancs: 32.2% | Nulles: 43.5% | Noirs: 24.2%)4.Nf3 (18.0% — Blancs: 42.6% | Nulles: 35.1% | Noirs: 22.3%)4.f4 (3.1% — Blancs: 46.9% | Nulles: 37.5% | Noirs: 15.6%)4.g3 (2.8% — Blancs: 34.5% | Nulles: 34.5% | Noirs: 31.0%)4.d3 (0.9% — Blancs: 11.1% | Nulles: 33.3% | Noirs: 55.6%)4.d4 (0.1%) auto Analyse coup par coup — 6 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6. 2.Nc3 Contrôle e4, d5. 2...Nf6 Contrôle e4, c5, d5, f5. 3.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3. 3...c5 Avancée centrale — contrôle b4, d4.…
A20 - 1.c4 e5 - King's English Variation (520)

Base Masters : Blancs 33.1%, Nulles 24.4%, Noirs 42.5%. Coups candidats 2...h4 (42.5% — Blancs: 26.5% | Nulles: 20.6% | Noirs: 52.9%)2...Nf3 (20.6% — Blancs: 51.5% | Nulles: 33.3% | Noirs: 15.2%)2...Nc3 (13.8% — Blancs: 27.3% | Nulles: 22.7% | Noirs: 50.0%)2...h3 (11.9% — Blancs: 36.8% | Nulles: 21.1% | Noirs: 42.1%)2...Bg2 (8.1% — Blancs: 38.5% | Nulles: 15.4% | Noirs: 46.2%)2...d4 (3.1%) auto Analyse coup par coup — 3 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.g3 Prépare le fianchetto du Fou (Bg2). Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre● d5 (1v0)● d4 (1v0) Colonnes et diagonales ♔…
A21 - 1.c4 e5 2.Nc3 - King's English Variation, Reversed Sicilian (685)

Base Masters : Blancs 28.3%, Nulles 48.3%, Noirs 23.4%. Coups candidats 2...Nf6 (57.1% — Blancs: 24.5% | Nulles: 55.8% | Noirs: 19.7%)2...Nc6 (22.2% — Blancs: 34.7% | Nulles: 38.8% | Noirs: 26.6%)2...Bb4 (12.1% — Blancs: 29.9% | Nulles: 38.5% | Noirs: 31.6%)2...d6 (6.9% — Blancs: 33.4% | Nulles: 37.1% | Noirs: 29.5%)2...f5 (0.8% — Blancs: 47.1% | Nulles: 27.9% | Noirs: 25.0%)2...c5 (0.4% — Blancs: 33.3% | Nulles: 46.3% | Noirs: 20.3%) auto Analyse coup par coup — 3 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes● b5 (2v0), ● d5 (2v0)—Cases faibles——Centre● d5…
A22 - 1.c4 e5 2.Nc3 Nf6 - King's English Variation, Two Knights Variation (405)

Base Masters : Blancs 25.7%, Nulles 54.1%, Noirs 20.2%. Coups candidats 3.Nf3 (69.9% — Blancs: 25.1% | Nulles: 56.9% | Noirs: 18.0%)3.g3 (25.3% — Blancs: 26.6% | Nulles: 48.0% | Noirs: 25.4%)3.e3 (3.3% — Blancs: 30.3% | Nulles: 46.7% | Noirs: 23.0%)3.d3 (0.5% — Blancs: 33.6% | Nulles: 42.5% | Noirs: 23.9%)3.e4 (0.5% — Blancs: 19.0% | Nulles: 49.6% | Noirs: 31.4%)3.a3 (0.4% — Blancs: 27.7% | Nulles: 48.9% | Noirs: 23.4%) auto Analyse coup par coup — 4 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. 2...Nf6 Contrôle d4, e4, f4, c5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes● b5…
A23 - 1.c4 e5 2.Nc3 Nf6 3.g3 c6 - King's English Variation, Two Knights Variation, Keres Variation (139)

Base Masters : Blancs 30.8%, Nulles 40.9%, Noirs 28.3%. Coups candidats 4.Nf3 (43.9% — Blancs: 34.5% | Nulles: 41.4% | Noirs: 24.1%)4.d4 (38.9% — Blancs: 30.7% | Nulles: 39.7% | Noirs: 29.6%)4.Bg2 (15.3% — Blancs: 20.8% | Nulles: 43.6% | Noirs: 35.6%)4.d3 (0.9% — Blancs: 50.0% | Nulles: 33.3% | Noirs: 16.7%)4.e4 (0.5%)4.Qa4 (0.3%) auto Analyse coup par coup — 6 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. 2...Nf6 Contrôle d4, e4, f4, c5. 3.g3 Prépare le fianchetto du Fou (Bg2). 3...c6 Contrôle b5, d5. Prépare d5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes● f2→g3, h2→g3● b7→c6,…
A24 - 1.c4 e5 2.Nc3 Nf6 3.g3 g6 - King's English Variation, Two Knights Variation, Fianchetto Line (1947) (226)

Base Masters : Blancs 31.2%, Nulles 29.7%, Noirs 39.1%. Coups candidats 4.Bg2 (82.0% — Blancs: 32.4% | Nulles: 25.7% | Noirs: 41.9%)4.Nf3 (12.5% — Blancs: 25.0% | Nulles: 43.8% | Noirs: 31.2%)4.d4 (5.5% — Blancs: 28.6% | Nulles: 57.1% | Noirs: 14.3%) auto Analyse coup par coup — 6 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. 2...Nf6 Contrôle d4, e4, f4, c5. 3.g3 Prépare le fianchetto du Fou (Bg2). 3...g6 Prépare le fianchetto du Fou (Bg7). Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes● f2→g3, h2→g3● f7→g6, h7→g6Passés——Majorité—— Cases ♔ Blancs♚…
A25 - 1.c4 e5 2.Nc3 Nc6 - King's English Variation, Reversed Closed Sicilian (625)

Base Masters : Blancs 35.3%, Nulles 39.1%, Noirs 25.7%. Coups candidats 5.d3 (27.5% — Blancs: 35.4% | Nulles: 38.1% | Noirs: 26.5%)5.e3 (27.2% — Blancs: 35.5% | Nulles: 38.8% | Noirs: 25.7%)5.Rb1 (21.1% — Blancs: 36.2% | Nulles: 39.5% | Noirs: 24.3%)5.e4 (15.7% — Blancs: 34.4% | Nulles: 41.4% | Noirs: 24.2%)5.Nf3 (7.9% — Blancs: 34.0% | Nulles: 37.0% | Noirs: 29.0%)5.a3 (0.3% — Blancs: 23.1% | Nulles: 30.8% | Noirs: 46.2%) auto Analyse coup par coup — 8 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. 2...Nc6 Contrôle d4, f4, c5. 3.g3 Prépare le fianchetto du Fou (Bg2). 3...g6 Prépare le fianchetto du Fou (Bg7). 4.Bg2…
A26 - 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 - King's English Variation, Closed System, Full Symmetry (360)

Base Masters : Blancs 34.8%, Nulles 39.9%, Noirs 25.3%. Coups candidats 6.e4 (33.4% — Blancs: 34.4% | Nulles: 43.2% | Noirs: 22.4%)6.Rb1 (33.2% — Blancs: 36.0% | Nulles: 38.8% | Noirs: 25.1%)6.e3 (16.1% — Blancs: 33.5% | Nulles: 40.4% | Noirs: 26.1%)6.Nf3 (13.5% — Blancs: 32.2% | Nulles: 36.1% | Noirs: 31.7%)6.Bd2 (1.4% — Blancs: 52.4% | Nulles: 19.0% | Noirs: 28.6%)6.Nd5 (0.6% — Blancs: 55.6% | Nulles: 22.2% | Noirs: 22.2%) auto Analyse coup par coup — 10 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. 2...Nc6 Contrôle d4, f4, c5. 3.g3 Prépare le fianchetto du Fou (Bg2). 3...g6 Prépare le fianchetto du Fou (Bg7). 4.Bg2…
A27 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 - King's English Variation, Three Knights System (1934) (163)

Base Masters : Blancs 34.4%, Nulles 39.7%, Noirs 25.9%. Coups candidats 3...Nf6 (44.5% — Blancs: 31.7% | Nulles: 45.4% | Noirs: 22.9%)3...f5 (26.5% — Blancs: 34.0% | Nulles: 36.2% | Noirs: 29.8%)3...g6 (21.1% — Blancs: 38.6% | Nulles: 34.7% | Noirs: 26.6%)3...d6 (3.3% — Blancs: 45.5% | Nulles: 31.7% | Noirs: 22.8%)3...Bb4 (3.0% — Blancs: 34.8% | Nulles: 34.8% | Noirs: 30.4%)3...Bc5 (1.4% — Blancs: 35.7% | Nulles: 26.2% | Noirs: 38.1%) auto Analyse coup par coup — 5 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. 2...Nc6 Contrôle d4, f4, c5. 3.Nf3 Contrôle d4, e4, d5, e5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases…
A28 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 - English (680)

Base Masters : Blancs 25.0%, Nulles 56.8%, Noirs 18.1%. Coups candidats 4.g3 (46.2% — Blancs: 23.6% | Nulles: 59.7% | Noirs: 16.8%)4.e3 (21.8% — Blancs: 27.1% | Nulles: 52.6% | Noirs: 20.3%)4.e4 (15.3% — Blancs: 19.5% | Nulles: 65.5% | Noirs: 15.0%)4.a3 (6.6% — Blancs: 32.4% | Nulles: 47.5% | Noirs: 20.1%)4.d3 (5.8% — Blancs: 30.7% | Nulles: 48.1% | Noirs: 21.2%)4.d4 (4.2% — Blancs: 30.6% | Nulles: 43.2% | Noirs: 26.1%) auto Analyse coup par coup — 6 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. 2...Nf6 Contrôle d4, e4, f4, c5. 3.Nf3 Contrôle d4, e4, d5, e5. 3...Nc6 Contrôle d4, e4, f4, c5. Structure de…
A29 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 - English (814)

Base Masters : Blancs 23.6%, Nulles 59.7%, Noirs 16.8%. Coups candidats 4...d5 (48.9% — Blancs: 18.9% | Nulles: 67.3% | Noirs: 13.8%)4...Bb4 (32.6% — Blancs: 25.4% | Nulles: 57.1% | Noirs: 17.5%)4...Bc5 (8.1% — Blancs: 32.4% | Nulles: 40.8% | Noirs: 26.8%)4...Nd4 (6.5% — Blancs: 28.2% | Nulles: 50.4% | Noirs: 21.5%)4...g6 (3.2% — Blancs: 36.1% | Nulles: 43.1% | Noirs: 20.8%)4...d6 (0.4% — Blancs: 55.3% | Nulles: 31.6% | Noirs: 13.2%) auto Analyse coup par coup — 7 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e5 Avancée centrale — contrôle d4, f4. Prépare d5, f5, Bc5. 2.Nc3 Contrôle e4, d5. 2...Nf6 Contrôle d4, e4, f4, c5. 3.Nf3 Contrôle d4, e4, d5, e5. 3...Nc6 Contrôle d4, e4, f4, c5. 4.g3 Prépare…
A30 - 1.c4 c5 - Symmetrical Variation (1066)

Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre● d5 (1v0)● d4 (1v0) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 0)Bc8● Bc8 Non développé (mob. 0)Bf8● Bf8 Non développé (mob. 0)Paire de fous● Oui● OuiNon développées6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1)6 (● b8, ● g8, ● c8, ● f8, ● a8, ● h8) Sécurité du roi ♔ Blancs♚ NoirsStatut● Au centre● Au centreDroits de roqueO-O / O-O-OO-O / O-O-O Thèmes ♔ Blancs♚ NoirsPhaseOuvertureCentremobileRuptures●…
A31 - 1.c4 c5 2.Nf3 Nf6 3.d4 - English (1955) (235)

Base Masters : Blancs 34.0%, Nulles 39.1%, Noirs 26.9%. Coups candidats 3...cxd4 (83.1% — Blancs: 33.2% | Nulles: 39.6% | Noirs: 27.2%)3...g6 (8.3% — Blancs: 39.4% | Nulles: 34.7% | Noirs: 25.9%)3...e6 (8.1% — Blancs: 35.9% | Nulles: 39.2% | Noirs: 24.9%)3...b6 (0.2% — Blancs: 55.6% | Nulles: 22.2% | Noirs: 22.2%)3...d5 (0.1%)3...a6 (0.1%) auto Analyse coup par coup — 5 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...Nf6 Contrôle e4, d5. 2.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3. 2...c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5. 3.Nf3 Contrôle f4, c5, d5, e5. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes● e5…
A32 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 - English (337)

Base Masters : Blancs 27.6%, Nulles 38.9%, Noirs 33.5%. Coups candidats 4.Nxd4 (99.2% — Blancs: 27.8% | Nulles: 38.7% | Noirs: 33.5%)4.Qxd4 (0.8%) auto Analyse coup par coup — 6 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6. 2.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3. 2...c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5. 3.Nf3 Contrôle f4, c5, d5, e5. 3...cxd4 Capture en d4 — résout la tension centrale. Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes—● d7→e6, f7→e6Passés——Majorité● aile dame 3v2—…
A33 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 - English (313)

Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes—● d7→e6, f7→e6Passés——Majorité● aile dame 3v2— Cases ♔ Blancs♚ NoirsCases fortes● b5 (3v0)● b4 (2v0)Cases faibles——Centre—● e5 (1v0) Colonnes et diagonales ♔ Blancs♚ NoirsSemi-ouvertes● d● c Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 5)Bf1● Bf1 Non développé (mob. 0)Bc8● Bc8 Non développé (mob. 0)Bf8● Bf8 Non développé (mob. 5)Paire de fous● Oui● OuiNon développées4 (● c1, ● f1, ● a1, ● h1)4 (● c8, ● f8, ● a8, ● h8) Sécurité du roi ♔ Blancs♚ NoirsStatut● Au centre● Au centreDroits de roqueO-O / O-O-OO-O / O-O-O Thèmes ♔ Blancs♚…
A35 - 1.c4 c5 2.Nc3 Nc6 - Symmetrical Variation, Two Knights Variation (361)

Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes——Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes● b5 (2v0), ● d5 (2v0)● b4 (2v0), ● d4 (2v0)Cases faibles——Centre● d5 (2v0), ● e4 (1v0)● d4 (2v0), ● e5 (1v0) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 0)Bc8● Bc8 Non développé (mob. 0)Bf8● Bf8 Non développé (mob. 0)Paire de fous● Oui● OuiNon développées5 (● g1, ● c1, ● f1, ● a1, ● h1)5 (● g8, ● c8, ● f8, ● a8, ● h8) Sécurité du roi ♔ Blancs♚ NoirsStatut● Au centre●…
A36 - 1.c4 c5 2.Nc3 Nc6 3.g3 - Symmetrical Variation, Two Knights, Fianchetto Variation (755)

Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes● f2→g3, h2→g3—Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes● b5 (2v0), ● d5 (2v0)● b4 (2v0), ● d4 (2v0)Cases faibles——Centre● d5 (2v0), ● e4 (1v0)● d4 (2v0), ● e5 (1v0) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bf1● Bf1 Non développé (mob. 2)Bc8● Bc8 Non développé (mob. 0)Bf8● Bf8 Non développé (mob. 0)Paire de fous● Oui● OuiNon développées5 (● g1, ● c1, ● f1, ● a1, ● h1)5 (● g8, ● c8, ● f8, ● a8, ● h8) Sécurité du roi ♔ Blancs♚ NoirsStatut●…
A37 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 - Symmetrical Variation, Three Knights, Fianchetto Variation (579)

Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés——Chaînes● f2→g3, h2→g3● f7→g6, h7→g6Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes● b5 (2v0), ● d5 (2v0)● b4 (2v0), ● d4 (3v1), ● e5 (2v1)Cases faibles——Centre● d5 (2v0), ● e4 (1v0)● d4 (3v1), ● e5 (2v1) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non développé (mob. 0)Bg2● Bg2 Ok (mob. 2)Bg7● Bg7 Actif (mob. 6)Bc8● Bc8 Non développé (mob. 0)Paire de fous● Oui● OuiNon développées3 (● c1, ● a1, ● h1)4 (● g8, ● c8, ● a8, ● h8) Sécurité du roi ♔ Blancs♚ NoirsStatut● Au centre● Au…
A38 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 - English (184)

Base Masters : Blancs 33.2%, Nulles 51.3%, Noirs 15.5%. Coups candidats 6.O-O (54.5% — Blancs: 29.0% | Nulles: 55.0% | Noirs: 16.0%)6.d4 (43.6% — Blancs: 38.7% | Nulles: 46.7% | Noirs: 14.6%)6.d3 (1.1% — Blancs: 8.0% | Nulles: 68.0% | Noirs: 24.0%)6.a3 (0.4% — Blancs: 55.6% | Nulles: 22.2% | Noirs: 22.2%)6.e4 (0.2% — Blancs: 50.0% | Nulles: 25.0% | Noirs: 25.0%)6.b3 (0.1%) auto Analyse coup par coup — 10 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...Nf6 Contrôle e4, d5. 2.Nf3 Contrôle d4, d5, e5. 2...c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5. 3.Nc3 Contrôle d4, e4, d5, e5. 3...Nc6 Contrôle d4, e4, d5, e5. 4.g3 Prépare le fianchetto du Fou (Bg2). 4...g6 Prépare…
A39 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4 - English (325)

Base Masters : Blancs 34.4%, Nulles 47.7%, Noirs 17.9%. Coups candidats 6...cxd4 (69.8% — Blancs: 35.4% | Nulles: 47.3% | Noirs: 17.3%)6...d6 (28.5% — Blancs: 31.2% | Nulles: 48.8% | Noirs: 20.1%)6...d5 (1.3% — Blancs: 52.2% | Nulles: 39.1% | Noirs: 8.7%)6...Nxd4 (0.3%)6...b6 (0.2% — Blancs: 33.3% | Nulles: 33.3% | Noirs: 33.3%) auto Analyse coup par coup — 10 demi-coups commentés 1.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 1...Nf6 Contrôle e4, d5. 2.Nf3 Contrôle d4, d5, e5. 2...c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5. 3.Nc3 Contrôle d4, e4, d5, e5. 3...Nc6 Contrôle d4, e4, d5, e5. 4.g3 Prépare le fianchetto du Fou (Bg2). 4...g6 Prépare le fianchetto du Fou (Bg7).…