A10 — A10-A39 English Opening
○ Trait aux Blancs
Ouverture — Centre semi-ouvert
♔ Point de vue Blancs
8
7
6
5
4
3
2
1
abcdefgh
Avantages : paire de fous.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 6 pièces non développées (B1, G1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, libère Bf1
● Nbd2 — Développer Nb1
● Nf3 — Développer Ng1
● d3 — Libérer Bc1
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 6 pièces non développées (B1, G1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, libère Bf1
● Nbd2 — Développer Nb1
● Nf3 — Développer Ng1
● d3 — Libérer Bc1
♚ Point de vue Noirs
1
2
3
4
5
6
7
8
hgfedcba
Avantages : paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 6 pièces non développées (B8, G8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nc6 — Développer Nb8
● ...Nf6 — Développer Ng8
● ...Bd6 — Développer Bf8
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 6 pièces non développées (B8, G8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nc6 — Développer Nb8
● ...Nf6 — Développer Ng8
● ...Bd6 — Développer Bf8
Avantages
Faiblesses adverses
Diagonale active
Plans
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 | semi-ouvert | |
| Ruptures | ● c2-c3, ● d2-d3, ● e2-e3, ● f2-f3 | ● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5 |
├── 3...e5 - Symmetrical Variation (0)
├── 4...d5 - Symmetrical Variation (0)
├── 4...d6 - Symmetrical Variation (0)
├── 4...g6 - Full Symmetry Line (0)
├── 4...Nf6 - Symmetrical Variation (0)
├── A10 - 1.c4 - English [+0.14] [+0.14] (125)
│ ├── A10a - 1…f5 2.g3 Nf6 - Anglo-Dutch [+0.54] [+0.54] (0)
│ ├── A10a - 1.c4 [+0.15] [+0.15] (2)
│ ├── A10b - 1…f5 2.Nf3 e6 - Anglo-Dutch [+0.58] [+0.58] (4)
│ ├── A10b - 1…g5 [+1.32] [+1.32] (0)
│ ├── A10c - 1…b5 - Jaenisch Gambit [+0.87] [+0.87] (0)
│ ├── A10c - 1…b6 2.Nf3 Bb7 [+0.37] [+0.37] (7)
│ ├── A10d - 1…b6 2.Nc3 Bb7 [+0.57] [+0.57] (5)
│ ├── A10d - 1…d5 - Vector [+0.54] [+0.54] (0)
│ ├── A10e - 1…b6 [+0.64] [+0.64] (4)
│ ├── A10e - 1…g6 2.Nc3 Bg7 [+0.55] [+0.55] (3)
│ ├── A10f - 1…d6 [+0.38] [+0.38] (0)
│ ├── A10f - 1…g6 2.Nf3 Bg7 [+0.29] [+0.29] (9)
│ ├── A10g - 1…f5 2.Nc3 Nf6 - Anglo-Dutch [+0.44] [+0.44] (1)
│ ├── A10g - 1…g6 [+0.34] [+0.34] (0)
│ ├── A10h - 1…f5 - Anglo-Dutch [+0.57] [+0.57] (0)
│ ├── A10h - 1…f5 2.Nf3 Nf6 - Anglo-Dutch [+0.55] [+0.55] (1)
│ ├── A10i - 1…b6 2.Nc3 e6 3.e4 [+0.40] [+0.40] (0)
│ ├── A10i - 1…Nc6 [+0.50] [+0.50] (0)
│ ├── A10j - 1…b6 2.Nc3 Bb7 3.e4 [+0.38] [+0.38] (8)
│ ├── A10j - 1…g5 2.d4 [+1.39] [+1.39] (0)
│ ├── A10k - 1…g6 2.g3 [+0.24] [+0.24] (8)
│ ├── A10k - 1…g6 2.Nc3 Bg7 3.g3 [+0.24] [+0.24] (8)
│ ├── A10l - 1…f5 2.g3 Nf6 3.Bg2 - Anglo-Dutch [+0.31] [+0.31] (9)
│ ├── A10l - 1…g6 2.e4 [+0.23] [+0.23] (1)
│ ├── A10m - 1…f5 2.g4 - Wade Gambit [-0.27] [-0.27] (0)
│ ├── A10m - 1…f5 2.Nc3 Nf6 3.g3 - Anglo-Dutch [+0.29] [+0.29] (1)
│ ├── A10n - 1…f5 2.g3 - Anglo-Dutch [+0.30] [+0.30] (0)
│ ├── A10n - 1…f5 2.Nf3 Nf6 3.g3 - Anglo-Dutch [+0.59] [+0.59] (4)
│ ├── A10o - 1…b6 2.Nf3 [+0.31] [+0.31] (0)
│ ├── A10o - 1…f5 2.Nf3 Nf6 3.Nc3 - Anglo-Dutch [+0.42] [+0.42] (1)
│ ├── A10p - 1…b6 2.Nc3 [+0.47] [+0.47] (0)
│ ├── A10p - 1…b6 2.Nc3 Bb7 3.e4 e6 [+0.49] [+0.49] (7)
│ ├── A10q - 1…d6 2.Nc3 [+0.38] [+0.38] (1)
│ ├── A10q - 1…f5 2.Nc3 Nf6 3.g3 g6 - Anglo-Dutch [+0.62] [+0.62] (3)
│ ├── A10r - 1…d6 2.Nf3 [+0.46] [+0.46] (1)
│ ├── A10r - 1…f5 2.Nf3 Nf6 3.g3 e6 - Anglo-Dutch [+0.62] [+0.62] (0)
│ ├── A10s - 1…f5 2.Nf3 Nf6 3.g3 e6 4.Bg2 - Anglo-Dutch [+0.58] [+0.58] (1)
│ ├── A10s - 1…g6 2.Nc3 [+0.21] [+0.21] (0)
│ ├── A10t - 1…f5 2.Nf3 Nf6 3.g3 e6 4.Bg2 Be7 - Anglo-Dutch [+0.60] [+0.60] (0)
│ ├── A10t - 1…g6 2.Nf3 [+0.40] [+0.40] (0)
│ ├── A10u - 1…f5 2.Nc3 - Anglo-Dutch [+0.34] [+0.34] (0)
│ ├── A10u - 1…f5 2.Nf3 Nf6 3.g3 e6 4.Bg2 Be7 5.O-O - Anglo-Dutch [+0.50] [+0.50] (0)
│ ├── A10v - 1…f5 2.Nf3 - Anglo-Dutch [+0.46] [+0.46] (0)
│ ├── A10v - 1…f5 2.Nf3 Nf6 3.g3 e6 4.Bg2 c6 5.O-O d5 - Anglo-Dutch [+0.68] [+0.68] (0)
│ ├── A10w - 1…f5 2.Nf3 Nf6 3.g3 e6 4.Bg2 Be7 5.O-O O-O - Anglo-Dutch [+0.53] [+0.53] (1)
│ ├── A10w - 1…Nc6 2.Nc3 [+0.23] [+0.23] (0)
│ ├── A10x - 1…f5 2.Nf3 Nf6 3.g3 e6 4.Bg2 Be7 5.O-O O-O 6.Nc3 - Anglo-Dutch [+0.64] [+0.54] (3)
│ ├── A10x - 1…g6 2.e4 e5 - Adorjan Defence [+0.27] [+0.27] (0)
│ ├── A10y - 1…g5 2.d4 Bg7 - Myers Gambit [+1.48] [+1.48] (0)
│ └── A10z - 1…b6 2.Nc3 e6 [+0.49] [+0.49] (2)
├── A11 - 1.c4 c6 - English [+0.44] [+0.44] (351)
│ ├── A11a - 1…c6 - Caro-Kann Defence [+0.29] [+0.29] (2)
│ ├── A11a - 2.Nf3 d5 - English: Caro-Kann Defence [+0.25] (0)
│ ├── A11b - 2.g3 - Caro-Kann Defence [+0.25] [+0.25] (0)
│ ├── A11c - 2.Nc3 - Caro-Kann Defence [+0.28] [+0.28] (1)
│ ├── A11d - 2.Nf3 - Caro-Kann Defence [+0.26] [+0.26] (0)
│ ├── A11e - 2.g3 Nf6 - Caro-Kann Defence [+0.20] [+0.20] (4)
│ ├── A11f - 2.Nc3 d5 - Caro-Kann Defence [+0.26] [+0.26] (0)
│ ├── A11g - 2.Nf3 Nf6 - Caro-Kann Defence [+0.27] [+0.27] (4)
│ ├── A11h - 2.Nf3 d5 3.g3 - Caro-Kann Defence [+0.20] [+0.20] (13)
│ ├── A11i - 2.Nf3 d5 3.e3 - Caro-Kann Defence [+0.26] [+0.26] (4)
│ ├── A11j - 2.g3 Nf6 3.Bg2 d5 - Caro-Kann Defence [+0.21] [+0.21] (5)
│ ├── A11k - 2.Nf3 d5 3.g3 Bg4 - Caro-Kann Defence [+0.34] [+0.34] (5)
│ ├── A11l - 2.Nf3 d5 3.e3 Nf6 - Caro-Kann Defence [+0.28] [+0.28] (25)
│ ├── A11m - 2.g3 Nf6 3.Bg2 d5 4.Nf3 - Caro-Kann Defence [+0.23] [+0.23] (27)
│ ├── A11n - 2.Nf3 d5 3.g3 Bg4 4.Bg2 - Caro-Kann Defence [+0.11] [+0.11] (51)
│ ├── A11o - 2.Nf3 d5 3.e3 Nf6 4.Nc3 - Caro-Kann Defence [+0.29] [+0.29] (90)
│ ├── A11p - 2.g3 Nf6 3.Bg2 d5 4.Nf3 Bf5 - Caro-Kann Defence [+0.43] [+0.43] (0)
│ ├── A11q - 2.g3 Nf6 3.Bg2 d5 4.Nf3 Bg4 - Caro-Kann Defence [+0.39] [+0.39] (16)
│ ├── A11r - 2.g3 Nf6 3.Bg2 d5 4.Nf3 Bf5 5.O-O - Caro-Kann Defence [+0.30] [+0.30] (18)
│ ├── A11s - 2.g3 Nf6 3.Bg2 d5 4.Nf3 Bg4 5.O-O - Caro-Kann Defence [+0.09] [+0.09] (24)
│ └── A11t - 2.g3 Nf6 3.Bg2 d5 4.Nf3 Bf5 5.O-O e6 6.d3 - Caro-Kann Defence [+0.04] [+0.03] (9)
├── A12 - 1.c4 c6 2.Nf3 d5 3.b3 - English [+0.06] [+0.06] (37)
│ ├── A12a - 3.b3 - Caro-Kann Defence [-0.17] [-0.17] (0)
│ ├── A12b - 3…Bg4 - Bogoljubow Variation [+0.00] [+0.00] (0)
│ ├── A12c - 3…Nf6 4.Bb2 - Caro-Kann Defence [-0.02] [-0.02] (0)
│ ├── A12d - 3…Nf6 4.g3 Bg4 - Torre Defence [-0.19] [-0.19] (0)
│ ├── A12e - 3…Nf6 4.g3 Bf5 - London Defence [-0.22] [-0.22] (0)
│ ├── A12f - 3…Nf6 4.Bb2 g6 - Bled Variation [+0.24] [+0.24] (0)
│ ├── A12g - 3…Nf6 4.Bb2 Bf5 - New York/London Defence [+0.29] [+0.29] (0)
│ ├── A12h - 3…Nf6 4.Bb2 Bg4 - Capablanca [+0.17] [+0.17] (6)
│ ├── A12i - 3…Nf6 4.g3 Bg4 5.Bg2 - Torre Defence [-0.16] [-0.16] (1)
│ ├── A12j - 3…Nf6 4.g3 Bf5 5.Bg2 - London Defence [-0.20] [-0.20] (0)
│ ├── A12k - 3…Nf6 4.g3 Bg4 5.Bg2 e6 - Torre Defence [-0.17] [-0.17] (1)
│ ├── A12l - 3…Nf6 4.g3 Bf5 5.Bg2 e6 - London Defence [-0.17] [-0.17] (4)
│ ├── A12m - 3…Nf6 4.Bb2 g6 5.e3 Bg7 - Bled Variation [+0.31] [+0.31] (4)
│ ├── A12n - 3…Nf6 4.g3 Bg4 5.Bg2 e6 6.Bb2 - Torre Defence [-0.18] [-0.18] (2)
│ └── A12o - 3…Nf6 4.g3 Bf5 5.Bg2 e6 6.Bb2 - London Defence [-0.16] [-0.16] (3)
├── A13 - 1.c4 e6 - English [+0.34] [+0.34] (455)
│ ├── A13a - 1…e6 [+0.22] [+0.22] (3)
│ ├── A13b - 2.g3 [+0.23] [+0.23] (3)
│ ├── A13c - 2.g3 d5 [+0.15] [+0.15] (0)
│ ├── A13d - 2.g3 d5 3.Bg2 [+0.10] [+0.10] (33)
│ ├── A13e - 2.Nc3 [+0.18] [+0.18] (3)
│ ├── A13f - 2.Nc3 Bb4 [+0.29] [+0.29] (20)
│ ├── A13g - 2.Nc3 d5 [+0.26] [+0.26] (3)
│ ├── A13h - 2.Nf3 [+0.29] [+0.29] (5)
│ ├── A13i - 2.Nf3 Nf6 [+0.33] [+0.33] (49)
│ ├── A13j - 2.Nf3 Nf6 3.g3 [+0.31] [+0.31] (20)
│ ├── A13k - 2.Nf3 Nf6 3.g3 a6 4.Bg2 b5 - Romanishin Gambit [+0.48] [+0.48] (17)
│ ├── A13l - 2.Nf3 d5 [+0.35] [+0.35] (33)
│ ├── A13m - 2.Nf3 d5 3.b3 - Agincourt Variation [-0.24] [-0.24] (25)
│ ├── A13n - 2.Nf3 d5 3.b3 Nf6 4.Bb2 c5 5.e3 Nc6 - Wimpey System [-0.02] [-0.02] (34)
│ ├── A13o - 2.Nf3 d5 3.g3 - Agincourt Variation [+0.06] [+0.06] (7)
│ ├── A13p - 2.Nf3 d5 3.g3 c6 - Kurajica Defence [+0.31] [+0.31] (2)
│ ├── A13q - 2.Nf3 d5 3.g3 c6 4.Qc2 - Kurajica Defence [-0.13] [-0.13] (0)
│ ├── A13r - 2.Nf3 d5 3.g3 Nf6 - Neo-Catalan [+0.35] (0)
│ ├── A13s - 2.Nf3 d5 3.g3 Nf6 4.Bg2 - Neo-Catalan [+0.17] [+0.17] (46)
│ ├── A13s - 2.Nf3 d5 3.g3 Nf6 4.Bg2 c6 5.b3 - Neo-Catalan [+0.24] [+0.24] (8)
│ ├── A13t - 2.Nf3 d5 3.g3 Nf6 4.Bg2 c5 5.O-O - Neo-Catalan [+0.17] [+0.17] (0)
│ ├── A13u - 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 - Neo-Catalan Accepted [+0.30] [+0.30] (22)
│ ├── A13v - 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 5.Qa4+ Nbd7 6.O-O - Neo-Catalan Accepted [-0.15] [-0.15] (51)
│ └── A13w - 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6 - Neo-Catalan Accepted [+0.25] [+0.25] (56)
├── A14 - 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 - English [+0.41] [+0.41] (206)
│ ├── A14a - 4…Be7 - Neo-Catalan Declined [+0.20] [+0.20] (2)
│ ├── A14b - 5.O-O - Neo-Catalan Declined [+0.32] [+0.32] (0)
│ ├── A14c - 5.O-O c6 - Neo-Catalan Declined [+0.35] [+0.35] (1)
│ ├── A14d - 5.O-O c5 - Neo-Catalan Declined [+0.32] [+0.32] (0)
│ ├── A14e - 5.O-O O-O - Neo-Catalan Declined [+0.26] [+0.26] (35)
│ ├── A14f - 5.O-O O-O 6.b3 - Neo-Catalan Declined [-0.15] [-0.15] (0)
│ ├── A14g - 5.O-O O-O 6.b3 b6 - Neo-Catalan Declined [+0.13] [+0.13] (5)
│ ├── A14h - 5.O-O O-O 6.b3 c5 - Neo-Catalan Declined [+0.12] [+0.12] (29)
│ ├── A14i - 5.O-O O-O 6.b3 c5 7.Bb2 - Neo-Catalan Declined [+0.04] [+0.04] (5)
│ ├── A14j - 5.O-O O-O 6.b3 b6 7.Bb2 Bb7 - Neo-Catalan Declined [+0.14] [+0.14] (33)
│ ├── A14k - 5.O-O O-O 6.b3 c5 7.Bb2 Nc6 - Neo-Catalan Declined [+0.22] [+0.22] (12)
│ ├── A14l - 5.O-O O-O 6.b3 b6 7.Bb2 Bb7 8.e3 - Neo-Catalan Declined [+0.11] [+0.10] (25)
│ └── A14m - 5.O-O O-O 6.b3 c5 7.Bb2 Nc6 8.e3 - Neo-Catalan Declined [-0.20] [-0.20] (34)
├── A15 - 1.c4 Nf6 - English [+0.33] [+0.33] (117)
│ ├── A15a - 1…Nf6 - Anglo-Indian [+0.22] [+0.22] (3)
│ ├── A15a - 2.g3 e6 - Anglo-Indian [+0.30] (0)
│ ├── A15b - 2.b4 - Anglo-Indian Polish [-0.39] [-0.39] (0)
│ ├── A15c - 2.g3 - Anglo-Indian [+0.25] [+0.25] (5)
│ ├── A15d - 2.Nf3 - Anglo-Indian [+0.24] [+0.24] (23)
│ ├── A15e - 2.g3 g6 - Anglo-Indian [+0.42] [+0.42] (0)
│ ├── A15f - 2.Nf3 g6 - Anglo-Indian [+0.48] [+0.48] (0)
│ ├── A15g - 2.g3 e6 3.Bg2 - Anglo-Indian [+0.22] [+0.22] (2)
│ ├── A15h - 2.g3 g6 3.Bg2 Bg7 - Anglo-Indian [+0.41] [+0.41] (0)
│ ├── A15i - 2.Nf3 g6 3.g3 Bg7 4.Bg2 - Anglo-Indian [+0.22] [+0.22] (17)
│ └── A15j - 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O - Anglo-Indian [+0.20] [+0.23] (8)
├── A16 - 1.c4 Nf6 2.Nc3 - English [+0.22] [+0.22] (216)
│ ├── A16a - 2…d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nb6 - Anglo-Gruenfeld Czech Variation [+0.44] [+0.44] (12)
│ ├── A16a - 2.Nc3 - Anglo-Indian [+0.08] [+0.08] (1)
│ ├── A16b - 2…c6 - Anglo-Indian [+0.38] [+0.38] (0)
│ ├── A16b - 2…d5 3.cxd5 Nxd5 4.Nf3 g6 5.g3 Bg7 - Anglo-Gruenfeld [+0.30] [+0.30] (20)
│ ├── A16c - 2…d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3 - Anglo-Gruenfeld Smyslov Variation [+0.40] [+0.40] (0)
│ ├── A16c - 2…d6 - Anglo-Indian [+0.62] [+0.62] (2)
│ ├── A16d - 2…g6 - Anglo-Indian [+0.51] [+0.51] (0)
│ ├── A16d - 2…g6 3.g3 Bg7 4.Bg2 O-O 5.Nf3 d6 6.O-O - Anglo-Indian [+0.29] [+0.29] (7)
│ ├── A16e - 2…d5 - Anglo-Gruenfeld [+0.49] [+0.49] (0)
│ ├── A16e - 2…d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3 6.bxc3 - Anglo-Gruenfeld Smyslov Variation [+0.45] [+0.45] (0)
│ ├── A16f - 2…d5 3.cxd5 Nxd5 4.Nf3 g6 5.g3 Bg7 6.Bg2 e5 - Anglo-Gruenfeld Korchnoi Variation [+0.37] [+0.37] (0)
│ ├── A16f - 2…Nc6 - Anglo-Indian [+0.55] [+0.55] (0)
│ ├── A16g - 2…c6 3.e4 - Anglo-Indian [+0.30] [+0.30] (0)
│ ├── A16g - 2…d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3 6.bxc3 Bg7 - Anglo-Gruenfeld Smyslov Variation [+0.42] [+0.42] (5)
│ ├── A16h - 2…d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3 6.bxc3 Bg7 7.Rb1 - Anglo-Gruenfeld Smyslov [+0.47] [+0.47] (10)
│ ├── A16h - 2…g6 3.e4 - Anglo-Indian [+0.53] [+0.53] (3)
│ ├── A16i - 2…d5 3.cxd5 Nxd5 4.Nf3 g6 5.e4 Nxc3 6.dxc3 Qxd1+ 7.Kxd1 - Anglo-Gruenfeld Andersson-Boeoek Queenswap [+0.12] [+0.12] (16)
│ ├── A16i - 2…g6 3.g3 - Anglo-Indian [+0.38] [+0.38] (2)
│ ├── A16j - 2…d5 3.Nf3 - Anglo-Gruenfeld [-1.15] [-1.15] (0)
│ ├── A16k - 2…d5 3.cxd5 - Anglo-Gruenfeld [+0.46] [+0.46] (4)
│ ├── A16l - 2…c6 3.e4 d5 - Anglo-Indian [+0.33] [+0.33] (2)
│ ├── A16m - 2…c6 3.e4 e5 - Anglo-Indian [+0.48] [+0.48] (1)
│ ├── A16n - 2…g6 3.g3 Bg7 - Anglo-Indian [+0.21] [+0.21] (0)
│ ├── A16o - 2…d5 3.Nf3 g6 - Anglo-Gruenfeld [+0.53] [+0.53] (1)
│ ├── A16p - 2…d5 3.Nf3 g6 4.g3 - Anglo-Gruenfeld [-0.49] [-0.49] (0)
│ ├── A16q - 2…g6 3.g3 Bg7 4.Bg2 - Anglo-Indian [+0.32] [+0.32] (2)
│ ├── A16r - 2…d5 3.Nf3 g6 4.Qa4+ - Anglo-Gruenfeld [+0.10] [+0.10] (11)
│ ├── A16s - 2…d5 3.cxd5 Nxd5 4.Nf3 - Anglo-Gruenfeld [+0.25] [+0.25] (0)
│ ├── A16t - 2…g6 3.g3 Bg7 4.Bg2 O-O - Anglo-Indian [+0.41] [+0.41] (6)
│ ├── A16u - 2…d5 3.cxd5 Nxd5 4.Nf3 g6 - Anglo-Gruenfeld [+0.45] [+0.45] (52)
│ ├── A16v - 2…g6 3.g3 Bg7 4.Bg2 O-O 5.e4 - Anglo-Indian [-0.21] [-0.21] (1)
│ ├── A16w - 2…g6 3.g3 Bg7 4.Bg2 O-O 5.Nf3 - Anglo-Indian [+0.17] [+0.17] (19)
│ ├── A16x - 2…d5 3.cxd5 Nxd5 4.Nf3 g6 5.g3 - Anglo-Gruenfeld [+0.21] [+0.21] (3)
│ ├── A16y - 2…d5 3.cxd5 Nxd5 4.Nf3 g6 5.e4 - Anglo-Gruenfeld Andersson-Boeoek Variation [+0.47] [+0.47] (5)
│ └── A16z - 2…d5 3.cxd5 Nxd5 4.Nf3 g6 5.Qa4+ - Anglo-Gruenfeld [+0.30] [+0.30] (18)
├── A17 - 1.c4 Nf6 2.Nc3 e6 - English [+0.50] [+0.50] (219)
│ ├── A17a - 2…e6 - Anglo-Indian [+0.39] [+0.39] (1)
│ ├── A17a - 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Re1 - Anglo-Queen’s Indian [+0.23] (0)
│ ├── A17b - 3.g3 - Anglo-Indian [-0.24] [-0.24] (0)
│ ├── A17c - 3.Nf3 - Anglo-Indian [+0.22] [+0.22] (4)
│ ├── A17d - 3.Nf3 d5 - Anglo-Indian [+0.29] [+0.29] (18)
│ ├── A17e - 3.Nf3 b6 - Anglo-Queen’s Indian [+0.34] [+0.34] (2)
│ ├── A17f - 3.Nf3 Bb4 - Nimzo-English [+0.26] [+0.26] (8)
│ ├── A17g - 3.Nf3 b6 4.e4 - Anglo-Queen’s Indian [+0.43] [+0.43] (15)
│ ├── A17h - 3.Nf3 b6 4.g3 - Anglo-Queen’s Indian [+0.23] [+0.23] (1)
│ ├── A17i - 3.Nf3 Bb4 4.g3 - Nimzo-English [+0.17] [+0.17] (23)
│ ├── A17j - 3.Nf3 Bb4 4.Qc2 - Nimzo-English [+0.23] [+0.23] (21)
│ ├── A17k - 3.Nf3 Bb4 4.Qc2 O-O - Nimzo-English [+0.25] [+0.25] (43)
│ ├── A17l - 3.Nf3 b6 4.e4 Bb7 5.Bd3 - Anglo-Queen’s Indian Romanishin [+0.08] [+0.08] (0)
│ ├── A17m - 3.Nf3 b6 4.g3 Bb7 5.Bg2 - Anglo-Queen’s Indian [+0.33] [+0.33] (2)
│ ├── A17n - 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O - Anglo-Queen’s Indian [+0.30] [+0.30] (7)
│ └── A17o - 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Re1 - Anglo-Queen’s Indian [+0.51] [+0.51] (0)
├── A18 - 1.c4 Nf6 2.Nc3 e6 3.e4 - English [+0.33] [+0.33] (77)
│ ├── A18a - 3.e4 - Mikenas [+0.41] [+0.41] (0)
│ ├── A18b - 3…d6 - Mikenas [+0.85] [+0.85] (0)
│ ├── A18c - 3…d5 - Mikenas French Variation [+0.32] [+0.32] (0)
│ ├── A18d - 3…Nc6 - Mikenas Kevitz Defence [+0.88] [+0.88] (0)
│ ├── A18e - 3…d5 4.e5 - Mikenas Flohr Variation [+0.34] [+0.34] (2)
│ ├── A18f - 3…d5 4.cxd5 - Mikenas French [+0.24] [+0.24] (26)
│ ├── A18g - 3…d5 4.e5 d4 - Mikenas Flohr [+0.18] [+0.18] (6)
│ ├── A18h - 3…d6 4.d4 Be7 - Mikenas [+0.93] [+0.93] (0)
│ ├── A18i - 3…d5 4.e5 Ne4 - Mikenas Flohr [+0.47] [+0.47] (1)
│ ├── A18j - 3…d5 4.e5 d4 5.exf6 dxc3 6.bxc3 Qxf6 7.d4 - Mikenas Flohr [+0.16] [+0.16] (8)
│ ├── A18k - 3…d5 4.e5 d4 5.exf6 dxc3 6.bxc3 Qxf6 7.Nf3 - Mikenas Flohr [+0.20] [+0.20] (22)
│ ├── A18l - 3…d5 4.e5 d4 5.exf6 dxc3 6.bxc3 Qxf6 7.d4 c5 - Mikenas Flohr [+0.38] [+0.38] (0)
│ └── A18m - 3…d5 4.e5 d4 5.exf6 dxc3 6.bxc3 Qxf6 7.d4 e5 - Mikenas Flohr [+0.16] [+0.16] (11)
├── A19 - 1.c4 Nf6 2.Nc3 e6 3.e4 c5 - English [+0.44] [+0.44] (29)
│ ├── A19a - 3…c5 - Mikenas Sicilian Variation [+0.41] [+0.41] (5)
│ ├── A19a - 4.e5 Ng8 5.Nf3 Nc6 6.d4 cxd4 7.Nxd4 Nxe5 - Mikenas [+0.22] (0)
│ ├── A19b - 4.e5 - Mikenas Sicilian [+0.33] [+0.33] (0)
│ ├── A19c - 4.e5 Ng8 - Mikenas Sicilian [+0.31] [+0.31] (0)
│ ├── A19d - 4.e5 Ng8 5.d4 - Mikenas Nei Gambit [+0.27] [+0.27] (11)
│ ├── A19e - 4.e5 Ng8 5.Nf3 - Mikenas [+0.38] [+0.38] (2)
│ ├── A19f - 4.e5 Ng8 5.Nf3 Nc6 - Mikenas [+0.30] [+0.30] (0)
│ ├── A19g - 4.e5 Ng8 5.Nf3 Nc6 6.d4 - Mikenas [+0.42] [+0.42] (1)
│ └── A19h - 4.e5 Ng8 5.Nf3 Nc6 6.d4 cxd4 7.Nxd4 Nxe5 - Mikenas [+0.47] [+0.47] (0)
├── A20 - 1.c4 e5 - English [+0.25] [+0.25] (314)
│ ├── A20a - 1…e5 - King’s (1…e5) [+0.20] [+0.20] (14)
│ ├── A20b - 2.d3 - King’s [+0.09] [+0.09] (50)
│ ├── A20c - 2.e3 - King’s [+0.08] [+0.08] (4)
│ ├── A20d - 2.g3 - King’s [+0.20] [+0.20] (21)
│ ├── A20e - 2.Nf3 - King’s Nimzowitsch [-0.09] [-0.09] (0)
│ ├── A20f - 2.g3 f5 - King’s [+0.28] [+0.28] (6)
│ ├── A20g - 2.g3 g6 - King’s [+0.35] [+0.35] (3)
│ ├── A20h - 2.g3 c6 - King’s [+0.25] [+0.25] (27)
│ ├── A20i - 2.g3 d6 - King’s [+0.37] [+0.37] (1)
│ ├── A20j - 2.g3 Nc6 - King’s [+0.36] [+0.36] (1)
│ ├── A20k - 2.g3 Nf6 - King’s [+0.21] [+0.21] (0)
│ ├── A20l - 2.Nf3 e4 - King’s Nimzowitsch Flohr Variation [-0.12] [-0.12] (0)
│ ├── A20m - 2.Nf3 Nc6 - King’s Nimzowitsch [+0.20] [+0.20] (6)
│ ├── A20n - 2.g3 c6 3.d4 - King’s [+0.25] [+0.25] (19)
│ ├── A20o - 2.g3 g6 3.Bg2 - King’s [+0.20] [+0.20] (0)
│ ├── A20p - 2.g3 d6 3.Bg2 - King’s [+0.27] [+0.27] (10)
│ ├── A20q - 2.g3 Nc6 3.Bg2 - King’s [+0.30] [+0.30] (20)
│ ├── A20r - 2.g3 Nf6 3.Bg2 - King’s [+0.24] [+0.24] (12)
│ ├── A20s - 2.g3 g6 3.Bg2 Bg7 - King’s [+0.17] [+0.17] (0)
│ ├── A20t - 2.g3 Nf6 3.Bg2 c6 - King’s [+0.16] [+0.16] (62)
│ ├── A20u - 2.g3 Nf6 3.Bg2 d5 - King’s [+0.29] [+0.29] (27)
│ ├── A20v - 2.g3 Nf6 3.Bg2 Bc5 - King’s [+0.30] [+0.30] (13)
│ └── A20w - 2.g3 Nf6 3.Bg2 Nc6 - King’s [+0.32] [+0.32] (3)
├── A21 - 1.c4 e5 2.Nc3 - English [+0.14] [+0.14] (234)
│ ├── A21a - 2…d6 3.Nf3 f5 4.d4 e4 5.Nd2 - Lukin [+0.00] [+0.00] (0)
│ ├── A21a - 2.Nc3 - King’s [+0.12] [+0.12] (3)
│ ├── A21b - 2…d6 3.Nf3 f5 4.d4 e4 5.Ng5 - Lukin [+0.08] [+0.08] (2)
│ ├── A21b - 2…f5 - King’s [+0.38] [+0.38] (1)
│ ├── A21c - 2…d6 3.Nf3 f5 4.d4 e4 5.Ng5 c6 - Lukin [+0.26] [+0.26] (7)
│ ├── A21c - 2…g6 - King’s [+0.59] [+0.59] (0)
│ ├── A21d - 2…d6 - King’s [+0.34] [+0.34] (2)
│ ├── A21d - 2…d6 3.Nf3 f5 4.d4 e4 5.Ng5 Nf6 - Lukin [+0.42] [+0.42] (2)
│ ├── A21e - 2…Bb4 - Kramnik-Shirov Counterattack [+0.22] [+0.22] (0)
│ ├── A21e - 2…d6 3.Nf3 f5 4.d4 e4 5.Ng5 Be7 - Lukin [+0.42] [+0.42] (10)
│ ├── A21f - 2…d6 3.d4 - King’s [+0.17] [+0.17] (19)
│ ├── A21f - 2…d6 3.Nf3 f5 4.d4 e4 5.Nd2 Nf6 6.e3 - Lukin [+0.22] [-0.03] (2)
│ ├── A21g - 2…d6 3.g3 - King’s [+0.31] [+0.31] (33)
│ ├── A21h - 2…d6 3.Nf3 - King’s [+0.50] [+0.50] (0)
│ ├── A21i - 2…Bb4 3.g3 - Kramnik-Shirov [+0.27] [+0.27] (0)
│ ├── A21j - 2…Bb4 3.Nd5 - Kramnik-Shirov [+0.20] [+0.20] (4)
│ ├── A21k - 2…d6 3.g3 c6 - King’s Keres Variation [+0.36] [+0.36] (0)
│ ├── A21l - 2…f5 3.g3 Nf6 - King’s [+0.34] [+0.34] (1)
│ ├── A21m - 2…d6 3.Nf3 g6 - King’s [+0.57] [+0.57] (0)
│ ├── A21n - 2…d6 3.Nf3 f5 - Lukin Variation [+0.41] [+0.41] (3)
│ ├── A21o - 2…d6 3.Nf3 Bg4 - Smyslov Defence [+0.89] [+0.89] (1)
│ ├── A21p - 2…Bb4 3.Nd5 a5 - Kramnik-Shirov [+0.25] [+0.25] (26)
│ ├── A21q - 2…Bb4 3.g3 Bxc3 - Kramnik-Shirov [+0.28] [+0.28] (1)
│ ├── A21r - 2…Bb4 3.Nd5 Ba5 - Kramnik-Shirov [+0.69] [+0.69] (2)
│ ├── A21s - 2…Bb4 3.Nd5 Bc5 - Kramnik-Shirov [+0.41] [+0.41] (40)
│ ├── A21t - 2…Bb4 3.Nd5 Be7 - Kramnik-Shirov [+0.22] [+0.22] (14)
│ ├── A21u - 2…d6 3.g3 c6 4.Bg2 - King’s Keres Variation [+0.44] [+0.44] (0)
│ ├── A21v - 2…f5 3.g3 Nf6 4.Bg2 - King’s [+0.13] [+0.13] (3)
│ ├── A21w - 2…g6 3.g3 Bg7 4.Bg2 - King’s [+0.23] [+0.23] (12)
│ ├── A21x - 2…Bb4 3.Nd5 Be7 4.d4 - Kramnik-Shirov [+0.14] [+0.14] (14)
│ ├── A21y - 2…d6 3.Nf3 f5 4.d4 e4 - Lukin [+0.44] [+0.44] (3)
│ └── A21z - 2…Bb4 3.g3 Bxc3 4.bxc3 - Kramnik-Shirov [+0.07] [+0.07] (8)
├── A22 - 1.c4 e5 2.Nc3 Nf6 - English [+0.13] [+0.13] (142)
│ ├── A22a - 2…Nf6 - King’s [+0.21] [+0.21] (4)
│ ├── A22a - 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nb6 - Bremen Reverse Dragon [+0.42] (0)
│ ├── A22b - 3.e4 - King’s [-0.17] [-0.17] (2)
│ ├── A22c - 3.e3 - King’s [-0.04] [-0.04] (7)
│ ├── A22d - 3.g3 - Bremen System [+0.23] [+0.23] (0)
│ ├── A22e - 3.Nf3 - King’s [+0.22] [+0.22] (0)
│ ├── A22f - 3.g3 d5 - Bremen Reverse Dragon [+0.22] [+0.22] (0)
│ ├── A22g - 3.e3 Bb4 - King’s [+0.14] [+0.14] (18)
│ ├── A22h - 3.Nf3 d6 - King’s [+0.55] [+0.55] (1)
│ ├── A22i - 3.Nf3 e4 - King’s [+0.49] [+0.49] (0)
│ ├── A22j - 3.g3 Bc5 - Bremen [+0.34] [+0.34] (2)
│ ├── A22k - 3.g3 Bb4 - Bremen Smyslov System [+0.23] [+0.23] (0)
│ ├── A22l - 3.g3 d5 4.cxd5 - Bremen Reverse Dragon [+0.25] [+0.25] (0)
│ ├── A22m - 3.g3 Bb4 4.Bg2 - Bremen Smyslov [+0.26] [+0.26] (0)
│ ├── A22n - 3.Nf3 e4 4.Ng5 b5 - Bellon Gambit [+0.69] [+0.69] (0)
│ ├── A22o - 3.g3 Bb4 4.Bg2 O-O - Bremen Smyslov [+0.23] [+0.23] (17)
│ ├── A22p - 3.g3 d5 4.cxd5 Nxd5 - Bremen Reverse Dragon [+0.26] [+0.26] (0)
│ ├── A22q - 3.g3 Bb4 4.Bg2 Bxc3 - Bremen Smyslov [+0.18] [+0.18] (2)
│ ├── A22r - 3.g3 Bb4 4.Bg2 O-O 5.e4 - Bremen Smyslov [+0.14] [+0.14] (17)
│ ├── A22s - 3.g3 d5 4.cxd5 Nxd5 5.Bg2 - Bremen Reverse Dragon [+0.24] [+0.24] (2)
│ └── A22t - 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nb6 - Bremen Reverse Dragon [+0.21] [+0.21] (26)
├── A23 - 1.c4 e5 2.Nc3 Nf6 3.g3 c6 - English [+0.28] [+0.28] (27)
│ ├── A23a - 3…c6 - Bremen Keres System [+0.18] [+0.18] (3)
│ ├── A23a - 4.Bg2 d5 5.cxd5 cxd5 - Bremen Keres [+0.30] (10)
│ ├── A23b - 4.Nf3 - Bremen Keres [+0.05] [+0.05] (0)
│ ├── A23c - 4.Bg2 - Bremen Keres [+0.02] [+0.02] (0)
│ ├── A23d - 4.Nf3 d6 - Bremen Keres [+0.38] [+0.38] (1)
│ ├── A23e - 4.Nf3 e4 - Bremen Keres [+0.09] [+0.09] (4)
│ ├── A23f - 4.Bg2 d5 - Bremen Keres [+0.00] [+0.00] (1)
│ ├── A23g - 4.Nf3 d6 5.Bg2 - Bremen Keres [+0.47] [+0.47] (2)
│ ├── A23h - 4.Bg2 d5 5.cxd5 - Bremen Keres [-0.41] [-0.41] (0)
│ └── A23i - 4.Bg2 d5 5.cxd5 cxd5 - Bremen Keres [-0.45] [-0.45] (0)
├── A24 - 1.c4 e5 2.Nc3 Nf6 3.g3 g6 - English [+0.44] [+0.44] (29)
│ ├── A24a - 3…g6 - Bremen [+0.44] [+0.44] (1)
│ ├── A24b - 4.Bg2 - Bremen [+0.49] [+0.49] (0)
│ ├── A24c - 4.Bg2 Bg7 - Bremen [+0.37] [+0.37] (0)
│ ├── A24d - 4.Bg2 Bg7 5.d3 - Bremen [+0.30] [+0.30] (1)
│ ├── A24e - 4.Bg2 Bg7 5.e3 - Bremen [+0.23] [+0.23] (0)
│ ├── A24f - 4.Bg2 Bg7 5.e4 - Bremen [+0.30] [+0.30] (0)
│ ├── A24g - 4.Bg2 Bg7 5.Nf3 - Bremen [+0.35] [+0.35] (0)
│ ├── A24h - 4.Bg2 Bg7 5.e4 d6 - Bremen [+0.26] [+0.26] (0)
│ ├── A24i - 4.Bg2 Bg7 5.e4 d6 6.Nf3 - Bremen [+0.11] [+0.11] (0)
│ ├── A24j - 4.Bg2 Bg7 5.e3 d6 6.Nge2 O-O - Bremen [+0.27] [+0.27] (0)
│ ├── A24k - 4.Bg2 Bg7 5.e4 d6 6.Nge2 O-O - Bremen [+0.29] [+0.29] (6)
│ ├── A24l - 4.Bg2 Bg7 5.Nf3 d6 6.O-O O-O - Bremen [+0.50] [+0.50] (1)
│ ├── A24m - 4.Bg2 Bg7 5.e4 d6 6.Nge2 O-O 7.d3 - Bremen [+0.31] [+0.31] (1)
│ └── A24n - 4.Bg2 Bg7 5.Nf3 d6 6.d3 O-O 7.O-O - Bremen [+0.25] [+0.25] (18)
├── A25 - 1.c4 e5 2.Nc3 Nc6 - English [+0.38] [+0.38] (154)
│ ├── A25a - 2…Nc6 - Closed [+0.27] [+0.27] (0)
│ ├── A25a - 3.g3 g6 4.Bg2 Bg7 5.Rb1 Nh6 - Closed Taimanov Variation [+0.60] [+0.60] (0)
│ ├── A25b - 3.e3 - Closed [-0.06] [-0.06] (1)
│ ├── A25b - 3.g3 g6 4.Bg2 Bg7 5.d3 Nge7 - Closed [+0.35] [+0.35] (2)
│ ├── A25c - 3.g3 - Closed [+0.23] [+0.23] (15)
│ ├── A25c - 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Nh6 - Closed Taimanov Variation [+0.52] [+0.52] (0)
│ ├── A25d - 3.g3 f5 - Closed [+0.34] [+0.34] (1)
│ ├── A25d - 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Be6 - Closed Hort Variation [+0.58] [+0.58] (0)
│ ├── A25e - 3.g3 g6 - Closed [+0.25] [+0.25] (0)
│ ├── A25e - 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Be6 7.d3 - Closed Hort [+0.20] [+0.20] (1)
│ ├── A25f - 3.e3 Nf6 - Closed [-0.10] [-0.10] (17)
│ ├── A25g - 3.g3 Nf6 - Closed [+0.39] [+0.39] (0)
│ ├── A25h - 3.g3 f5 4.Bg2 - Closed [+0.35] [+0.35] (0)
│ ├── A25i - 3.g3 d6 4.Bg2 - Closed [+0.26] [+0.26] (3)
│ ├── A25j - 3.g3 g6 4.Bg2 - Closed [+0.21] [+0.21] (4)
│ ├── A25k - 3.g3 Nf6 4.Bg2 - Closed [+0.34] [+0.34] (5)
│ ├── A25l - 3.g3 f5 4.Bg2 Nf6 - Closed [+0.34] [+0.34] (3)
│ ├── A25m - 3.g3 d6 4.Bg2 Be6 - Closed Troeger Defence [+0.64] [+0.64] (0)
│ ├── A25n - 3.g3 g6 4.Bg2 Bg7 - Closed [+0.26] [+0.26] (5)
│ ├── A25o - 3.g3 Nf6 4.Bg2 Bc5 - Closed [+0.33] [+0.33] (2)
│ ├── A25p - 3.g3 Nf6 4.Bg2 Bb4 - Closed [+0.40] [+0.40] (3)
│ ├── A25q - 3.g3 f5 4.Bg2 Nf6 5.d3 - Closed [+0.31] [+0.31] (5)
│ ├── A25r - 3.g3 d6 4.Bg2 Be6 5.d3 - Closed Troeger [+0.46] [+0.46] (5)
│ ├── A25s - 3.g3 g6 4.Bg2 Bg7 5.e3 - Closed [+0.28] [+0.28] (17)
│ ├── A25t - 3.g3 g6 4.Bg2 Bg7 5.e4 - Closed [+0.22] [+0.22] (6)
│ ├── A25u - 3.g3 g6 4.Bg2 Bg7 5.d3 - Closed [+0.27] [+0.27] (0)
│ ├── A25v - 3.g3 Nf6 4.Bg2 Bc5 5.e3 - Closed [+0.34] [+0.34] (9)
│ ├── A25w - 3.g3 g6 4.Bg2 Bg7 5.Rb1 - Closed [+0.22] [+0.22] (0)
│ ├── A25x - 3.g3 Nf6 4.Bg2 Bb4 5.Nd5 - Closed [+0.38] [+0.38] (9)
│ ├── A25y - 3.g3 f5 4.Bg2 Nf6 5.e3 g6 - Closed [+0.36] [+0.36] (3)
│ └── A25z - 3.g3 g6 4.Bg2 Bg7 5.Rb1 a5 - Closed [+0.24] [+0.24] (11)
├── A26 - 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 - English [+0.24] [+0.24] (99)
│ ├── A26a - 5…d6 - Closed [+0.26] [+0.26] (1)
│ ├── A26b - 6.e3 - Closed [+0.26] [+0.26] (1)
│ ├── A26c - 6.e4 - Botvinnik System [+0.24] [+0.24] (0)
│ ├── A26d - 6.Rb1 - Closed [+0.22] [+0.22] (3)
│ ├── A26e - 6.Nf3 - Closed [+0.15] [+0.15] (5)
│ ├── A26f - 6.Rb1 f5 - Closed [+0.56] [+0.56] (0)
│ ├── A26g - 6.Rb1 a5 - Closed [+0.23] [+0.23] (4)
│ ├── A26h - 6.e4 Nf6 - Botvinnik System [+0.37] [+0.37] (0)
│ ├── A26i - 6.Nf3 Nf6 - Closed [+0.28] [+0.28] (2)
│ ├── A26j - 6.e4 Nge7 - Botvinnik System [+0.24] [+0.24] (0)
│ ├── A26k - 6.e4 Nf6 7.Nf3 - Botvinnik System [+0.16] [+0.16] (0)
│ ├── A26l - 6.Nf3 Nf6 7.O-O - Closed [+0.22] [+0.22] (0)
│ ├── A26m - 6.e4 Nf6 7.Nge2 - Botvinnik System [+0.40] [+0.40] (0)
│ ├── A26n - 6.e4 Nge7 7.Nge2 - Botvinnik System [+0.21] [+0.21] (3)
│ ├── A26o - 6.Nf3 Nf6 7.O-O O-O - Closed [+0.28] [+0.28] (5)
│ ├── A26p - 6.e4 Nf6 7.Nf3 O-O 8.O-O - Botvinnik System [+0.07] [+0.07] (1)
│ ├── A26q - 6.Nf3 Nf6 7.O-O O-O 8.Rb1 - Closed [+0.25] [+0.25] (6)
│ ├── A26r - 6.e4 Nf6 7.Nge2 O-O 8.O-O - Botvinnik System [+0.41] [+0.41] (4)
│ ├── A26s - 6.Nf3 Nf6 7.O-O O-O 8.Rb1 a5 - Closed [+0.26] [+0.26] (6)
│ ├── A26t - 6.Nf3 Nf6 7.O-O O-O 8.Rb1 a5 9.a3 - Closed [+0.14] [+0.14] (22)
│ └── A26u - 6.Nf3 Nf6 7.O-O O-O 8.Rb1 a5 9.a3 h6 - Closed [+0.24] [+0.24] (12)
├── A27 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 - English [+0.18] [+0.18] (34)
│ ├── A27a - 3.Nf3 - Three Knights [+0.12] [+0.12] (2)
│ ├── A27b - 3…d6 - Three Knights [+0.55] [+0.55] (0)
│ ├── A27c - 3…f5 - Three Knights [+0.50] [+0.50] (11)
│ ├── A27d - 3…g6 - Three Knights [+0.33] [+0.33] (1)
│ ├── A27e - 3…Bb4 - Three Knights [+0.38] [+0.38] (1)
│ ├── A27f - 3…f5 4.d4 - Three Knights [+0.19] [+0.19] (0)
│ ├── A27g - 3…g6 4.d4 - Three Knights [+0.35] [+0.35] (0)
│ ├── A27h - 3…f5 4.d4 e4 - Three Knights [+0.12] [+0.12] (10)
│ └── A27i - 3…g6 4.d4 exd4 - Three Knights [+0.30] [+0.30] (8)
├── A28 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 - English [+0.22] [+0.22] (306)
│ ├── A28a - 3…Nf6 - Four Knights [+0.15] [+0.15] (4)
│ ├── A28b - 4.e4 - Four Knights Nimzowitsch Variation [+0.14] [+0.14] (54)
│ ├── A28c - 4.a3 - Four Knights Marini Variation [-0.05] [-0.05] (0)
│ ├── A28d - 4.d3 - Four Knights Capablanca Variation [-0.07] [-0.07] (51)
│ ├── A28e - 4.d4 - Four Knights [-0.18] [-0.18] (10)
│ ├── A28f - 4.e3 - Four Knights [-0.02] [-0.02] (38)
│ ├── A28g - 4.d4 e4 - Four Knights Bradley Beach Variation [-0.09] [-0.09] (0)
│ ├── A28h - 4.e3 Bb4 - Four Knights [+0.00] [+0.00] (13)
│ ├── A28i - 4.e3 Bb4 5.Qc2 - Four Knights [-0.04] [-0.04] (17)
│ ├── A28j - 4.e3 Bb4 5.Qc2 Bxc3 - Four Knights Romanishin Variation [+0.12] [+0.12] (63)
│ ├── A28k - 4.e3 Bb4 5.Qc2 O-O 6.Nd5 Re8 7.Qf5 - Four Knights Stean Variation [-0.02] [-0.02] (8)
│ └── A28l - 4.d4 exd4 5.Nxd4 Bb4 6.Bg5 h6 7.Bh4 Bxc3+ 8.bxc3 Ne5 - Four Knights Nenarokov Variation [+0.11] [+0.11] (0)
├── A29 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 - English [+0.19] [+0.19] (483)
│ ├── A29a - 4…d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.d3 O-O - Four Knights [+0.37] (0)
│ ├── A29a - 4.g3 - Four Knights [+0.24] [+0.24] (52)
│ ├── A29b - 4…g6 - Four Knights [+0.48] [+0.48] (5)
│ ├── A29c - 4…d5 - Four Knights [+0.10] [+0.10] (0)
│ ├── A29d - 4…Bc5 - Four Knights [+0.31] [+0.31] (7)
│ ├── A29e - 4…Bb4 - Four Knights [+0.20] [+0.20] (1)
│ ├── A29f - 4…g6 5.d4 - Four Knights [+0.29] [+0.29] (5)
│ ├── A29g - 4…d5 5.cxd5 - Four Knights [+0.11] [+0.11] (0)
│ ├── A29h - 4…Bc5 5.Bg2 - Four Knights [+0.28] [+0.28] (3)
│ ├── A29i - 4…Bb4 5.Nd5 - Four Knights [+0.09] [+0.09] (54)
│ ├── A29j - 4…Bb4 5.Bg2 - Four Knights [+0.10] [+0.10] (19)
│ ├── A29k - 4…d5 5.cxd5 Nxd5 - Four Knights [+0.11] [+0.11] (4)
│ ├── A29l - 4…Bc5 5.Bg2 d6 6.O-O - Four Knights [+0.31] [+0.31] (2)
│ ├── A29m - 4…Bb4 5.Bg2 O-O 6.O-O - Four Knights Main Line [+0.20] [+0.20] (33)
│ ├── A29n - 4…d5 5.cxd5 Nxd5 6.Bg2 - Four Knights [+0.12] [+0.12] (39)
│ ├── A29o - 4…Bc5 5.Bg2 d6 6.O-O O-O - Four Knights [+0.26] [+0.26] (6)
│ ├── A29p - 4…Bb4 5.Bg2 O-O 6.O-O e4 - Four Knights Main Line [+0.11] [+0.11] (28)
│ ├── A29q - 4…d5 5.cxd5 Nxd5 6.Bg2 Be6 - Four Knights [+0.51] [+0.51] (2)
│ ├── A29r - 4…d5 5.cxd5 Nxd5 6.Bg2 Nb6 - Four Knights [+0.23] [+0.23] (17)
│ ├── A29s - 4…Bc5 5.Bg2 d6 6.O-O O-O 7.d3 - Four Knights [+0.26] [+0.26] (7)
│ ├── A29t - 4…d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O - Four Knights [+0.19] [+0.19] (1)
│ ├── A29u - 4…d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 - Four Knights [+0.16] [+0.16] (13)
│ ├── A29v - 4…d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.a3 - Four Knights [+0.19] [+0.19] (77)
│ ├── A29w - 4…d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.d3 - Four Knights [+0.17] [+0.17] (51)
│ ├── A29x - 4…d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.Rb1 - Four Knights [+0.12] [+0.12] (24)
│ └── A29y - 4…d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.d3 O-O - Four Knights [+0.14] [+0.14] (0)
├── A30 - 1.c4 c5 - English [+0.24] [+0.24] (556)
│ ├── A30a - 1…c5 - Symmetrical [+0.28] [+0.28] (0)
│ ├── A30a - 2.b3 [+0.02] (6)
│ ├── A30a - 2.g3 [+0.32] (5)
│ ├── A30a - 2.g3 g6 [+0.22] (14)
│ ├── A30b - 2.Nf3 [+0.28] (0)
│ ├── A30b - 2.Nf3 b6 - Symmetrical [+0.41] (2)
│ ├── A30b - 2.Nf3 b6 3.g3 - Symmetrical [+0.39] (1)
│ ├── A30b - 2.Nf3 b6 3.g3 Bb7 4.Bg2 - Symmetrical [+0.28] (4)
│ ├── A30b - 2.Nf3 g6 [+0.46] (6)
│ ├── A30b - 2.Nf3 Nc6 [+0.28] (30)
│ ├── A30c - 2.Nf3 Nf6 - Symmetrical [+0.26] (12)
│ ├── A30d - 2.Nf3 Nf6 3.g3 - Symmetrical [+0.21] (80)
│ ├── A30e - 2.Nf3 Nf6 3.g3 b6 - Symmetrical System [+0.35] (0)
│ ├── A30e - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 - Symmetrical System [+0.33] (0)
│ ├── A30e - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.Nc3 - Symmetrical System [+0.27] (1)
│ ├── A30e - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O - Symmetrical System [+0.30] (0)
│ ├── A30f - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 - Symmetrical Double Fianchetto [+0.27] (27)
│ ├── A30f - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.Nc3 Bg7 - Symmetrical Double Fianchetto [+0.27] (52)
│ ├── A30g - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 - Symmetrical Mutual Double Fianchetto [+0.17] (1)
│ ├── A30g - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O - Symmetrical Mutual Double Fianchetto [+0.20] (22)
│ ├── A30g - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 - Symmetrical Mutual Double Fianchetto [+0.21] (27)
│ ├── A30g - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 d5 - Symmetrical Mutual Double Fianchetto with …d5 [+0.17] (10)
│ ├── A30h - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 - Symmetrical Hedgehog System [+0.34] (5)
│ ├── A30h - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 - Symmetrical Hedgehog System [+0.31] (4)
│ ├── A30i - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 a6 - Symmetrical Hedgehog [+0.48] (25)
│ ├── A30j - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 d6 - Symmetrical Hedgehog [+0.49] (4)
│ ├── A30k - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 d6 7.b3 - Symmetrical Hedgehog [+0.36] (1)
│ ├── A30l - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 d6 7.d4 - Symmetrical Hedgehog [+0.35] (1)
│ ├── A30m - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 - Symmetrical Hedgehog System [+0.31] (5)
│ ├── A30n - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.Re1 - Symmetrical Hedgehog [+0.25] (34)
│ ├── A30o - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.Re1 d5 - Symmetrical Hedgehog [+0.21] (23)
│ ├── A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 - Symmetrical Hedgehog [+0.11] (7)
│ ├── A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O - Symmetrical Hedgehog [+0.21] (8)
│ ├── A30p - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.b3 O-O 8.Bb2 d6 - Symmetrical Hedgehog [+0.34] (14)
│ ├── A30q - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 - Symmetrical Hedgehog [+0.28] (4)
│ ├── A30r - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 - Symmetrical Hedgehog [+0.27] [+0.27] (0)
│ ├── A30s - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 O-O - Symmetrical Hedgehog [+0.31] [+0.31] (19)
│ ├── A30s - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 O-O 9.Rd1 Nc6 - Symmetrical Hedgehog [+0.50] (11)
│ ├── A30t - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 Nc6 - Symmetrical Hedgehog [+0.51] [+0.51] (5)
│ ├── A30u - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 - Symmetrical Hedgehog [+0.29] (25)
│ ├── A30v - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.b3 - Symmetrical Hedgehog [+0.30] (9)
│ ├── A30v - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.b3 Nbd7 - Symmetrical Hedgehog [+0.23] (5)
│ ├── A30v - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.b3 Nbd7 10.Nb5 - Symmetrical Hedgehog [+0.25] (3)
│ ├── A30w - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 - Symmetrical Hedgehog [+0.27] (10)
│ ├── A30x - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7 - Symmetrical Hedgehog Flexible Formation [+0.30] [+0.30] (7)
│ ├── A30y - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7 11.e4 - Symmetrical Hedgehog Flexible Formation [+0.35] (14)
│ ├── A30y - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7 11.e4 O-O - Symmetrical Hedgehog Flexible Formation [+0.74] (1)
│ └── A30y - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7 11.e4 Qc7 - Symmetrical Hedgehog Flexible Formation [+0.33] (3)
├── A31 - 1.c4 c5 2.Nf3 Nf6 3.d4 - English [+0.12] [+0.12] (90)
│ ├── A31a - 3…cxd4 4.Nxd4 Nc6 - Symmetrical Two Knights [+0.29] (0)
│ ├── A31a - 3.d4 - Symmetrical Two Knights [+0.07] [+0.07] (0)
│ ├── A31b - 3…a6 - Symmetrical Two Knights [+0.65] [+0.65] (0)
│ ├── A31c - 3…g6 - Symmetrical Two Knights [+0.55] [+0.55] (1)
│ ├── A31d - 3…cxd4 - Symmetrical Two Knights [+0.10] [+0.10] (0)
│ ├── A31e - 3…g6 4.d5 - Symmetrical Two Knights [+0.52] [+0.52] (1)
│ ├── A31f - 3…g6 4.Nc3 - Symmetrical Two Knights [+0.39] [+0.39] (0)
│ ├── A31g - 3…cxd4 4.Nxd4 - Symmetrical Two Knights [+0.12] [+0.12] (7)
│ ├── A31h - 3…cxd4 4.Nxd4 b6 - Symmetrical Two Knights [+0.42] [+0.42] (2)
│ ├── A31i - 3…cxd4 4.Nxd4 g6 - Symmetrical Two Knights [+0.34] [+0.34] (0)
│ ├── A31j - 3…cxd4 4.Nxd4 e5 - Symmetrical Two Knights [+0.35] [+0.35] (3)
│ ├── A31k - 3…cxd4 4.Nxd4 g6 5.Nc3 - Symmetrical Two Knights [+0.32] [+0.32] (8)
│ ├── A31l - 3…cxd4 4.Nxd4 e5 5.Nb5 - Symmetrical Two Knights [+0.30] [+0.30] (9)
│ ├── A31m - 3…cxd4 4.Nxd4 Nc6 5.Nc3 - Symmetrical Two Knights [+0.34] [+0.34] (10)
│ ├── A31n - 3…cxd4 4.Nxd4 b6 5.Nc3 Bb7 - Symmetrical Two Knights [+0.46] [+0.46] (13)
│ ├── A31o - 3…cxd4 4.Nxd4 g6 5.Nc3 Bg7 - Symmetrical Two Knights [+0.69] [+0.69] (0)
│ ├── A31p - 3…cxd4 4.Nxd4 Nc6 5.Nc3 g6 - Symmetrical Two Knights [+0.39] [+0.39] (2)
│ └── A31q - 3…cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.e4 - Symmetrical Two Knights [+0.63] [+0.63] (0)
├── A32 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 - English [+0.13] [+0.13] (133)
│ ├── A32a - 4…e6 - Symmetrical Two Knights [+0.13] [+0.13] (0)
│ ├── A32b - 5.e3 - Symmetrical Two Knights [+0.13] [+0.13] (1)
│ ├── A32c - 5.g3 - Symmetrical Two Knights [+0.18] [+0.18] (2)
│ ├── A32d - 5.Nc3 - Symmetrical Two Knights [+0.15] [+0.15] (0)
│ ├── A32e - 5.g3 a6 - Symmetrical Two Knights [+0.50] [+0.50] (0)
│ ├── A32f - 5.g3 d5 - Symmetrical Two Knights [+0.22] [+0.22] (0)
│ ├── A32g - 5.g3 Qb6 - Symmetrical Two Knights [+0.38] [+0.38] (0)
│ ├── A32h - 5.g3 Qc7 - Symmetrical Two Knights [+0.43] [+0.43] (17)
│ ├── A32i - 5.g3 Nc6 - Symmetrical Two Knights [+0.39] [+0.39] (0)
│ ├── A32j - 5.Nc3 d5 - Symmetrical Two Knights [+0.16] [+0.16] (13)
│ ├── A32k - 5.Nc3 a6 - Symmetrical Two Knights [+0.47] [+0.47] (7)
│ ├── A32l - 5.g3 Bb4+ - Symmetrical Two Knights [+0.24] [+0.24] (15)
│ ├── A32m - 5.Nc3 Bb4 - Symmetrical Two Knights [+0.21] [+0.21] (0)
│ ├── A32n - 5.g3 a6 6.Bg2 - Symmetrical Two Knights [+0.48] [+0.48] (7)
│ ├── A32o - 5.g3 d5 6.Bg2 - Symmetrical Two Knights [+0.20] [+0.20] (5)
│ ├── A32p - 5.Nc3 a6 6.g3 - Symmetrical Two Knights [+0.36] [+0.36] (4)
│ ├── A32q - 5.g3 Qb6 6.Bg2 - Symmetrical Two Knights [+0.25] [+0.25] (5)
│ ├── A32r - 5.g3 Nc6 6.Bg2 - Symmetrical Two Knights [+0.31] [+0.31] (11)
│ ├── A32s - 5.Nc3 Bb4 6.Qb3 - Symmetrical Two Knights [+0.13] [+0.13] (1)
│ ├── A32t - 5.Nc3 Bb4 6.Nb5 - Symmetrical Two Knights [-0.20] [-0.20] (4)
│ ├── A32u - 5.Nc3 Bb4 6.Bd2 - Symmetrical Two Knights [+0.08] [+0.08] (2)
│ ├── A32v - 5.Nc3 Bb4 6.Bd2 Nc6 - Symmetrical Two Knights [+0.04] [+0.04] (3)
│ └── A32w - 5.g3 d5 6.Bg2 e5 7.Nf3 - Symmetrical Two Knights [+0.24] [+0.24] (22)
├── A33 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 - English [+0.32] [+0.32] (198)
│ ├── A33a - 5…Nc6 - Symmetrical Two Knights [+0.25] [+0.25] (1)
│ ├── A33b - 6.Bf4 - Symmetrical Two Knights [+0.16] [+0.16] (21)
│ ├── A33c - 6.Bg5 - Symmetrical Two Knights [-0.01] [-0.01] (8)
│ ├── A33d - 6.e3 - Symmetrical Two Knights [+0.08] [+0.08] (7)
│ ├── A33e - 6.a3 - Symmetrical Two Knights [+0.22] [+0.22] (35)
│ ├── A33f - 6.a3 Bc5 - Symmetrical Two Knights [+0.24] (27)
│ ├── A33g - 6.Ndb5 - Symmetrical Two Knights [-0.12] [-0.12] (1)
│ ├── A33h - 6.Ndb5 Bb4 - Symmetrical Two Knights [+0.43] (4)
│ ├── A33i - 6.Ndb5 d5 - Symmetrical Two Knights [-0.11] (3)
│ ├── A33j - 6.Ndb5 d5 7.Bf4 e5 8.cxd5 exf4 9.dxc6 bxc6 10.Qxd8+ Kxd8 - Symmetrical Two Knights Queenswap [-0.19] (9)
│ ├── A33k - 6.g3 - Symmetrical Two Knights [+0.32] [+0.32] (1)
│ ├── A33l - 6.g3 a6 - Symmetrical Two Knights [+0.67] (0)
│ ├── A33m - 6.g3 Bb4 - Symmetrical Two Knights [+0.56] [+0.56] (2)
│ ├── A33n - 6.g3 Bc5 - Symmetrical Two Knights [+0.29] [+0.29] (8)
│ ├── A33o - 6.g3 Qb6 - Symmetrical Geller Variation [+0.30] [+0.30] (33)
│ ├── A33p - 6.g3 Qb6 7.Nb3 - Symmetrical Geller [+0.25] (10)
│ └── A33q - 6.g3 Qb6 7.Nb3 Ne5 - Symmetrical Geller [+0.00] (25)
├── A34 - 1.c4 c5 2.Nc3 - English [+0.25] [+0.25] (303)
│ ├── A34a - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 Nb4 6.Bc4 - Symmetrical 3 Knights [+0.22] [+0.22] (24)
│ ├── A34a - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.dxc3 Qxd1+ 7.Kxd1 - Symmetrical 3 Knights Queenswap [+0.25] (0)
│ ├── A34a - 2.Nc3 - Symmetrical [+0.19] [+0.19] (0)
│ ├── A34b - 2…b6 - Symmetrical [+0.45] [+0.45] (0)
│ ├── A34b - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 Nb4 6.Bb5+ - Symmetrical 3 Knights [+0.19] [+0.19] (13)
│ ├── A34c - 2…g6 - Symmetrical [+0.25] [+0.25] (6)
│ ├── A34c - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.dxc3 Qxd1+ 7.Kxd1 - Symmetrical 3 Knights Queenswap [+0.14] [+0.14] (0)
│ ├── A34d - 2…Nf6 - Symmetrical [+0.24] [+0.24] (0)
│ ├── A34e - 2…g6 3.g3 - Symmetrical [+0.24] [+0.24] (0)
│ ├── A34f - 2…b6 3.Nf3 - Symmetrical [+0.47] [+0.47] (0)
│ ├── A34g - 2…g6 3.Nf3 - Symmetrical [+0.25] [+0.25] (6)
│ ├── A34h - 2…Nf6 3.g3 - Symmetrical [+0.17] [+0.17] (13)
│ ├── A34i - 2…Nf6 3.Nf3 - Symmetrical 3 Knights [+0.26] [+0.26] (15)
│ ├── A34j - 2…Nf6 3.g3 d5 - Symmetrical [+0.26] [+0.26] (0)
│ ├── A34k - 2…b6 3.Nf3 Bb7 - Symmetrical [+0.52] [+0.52] (4)
│ ├── A34l - 2…Nf6 3.Nf3 b6 - Symmetrical 3 Knights [+0.47] [+0.47] (14)
│ ├── A34m - 2…Nf6 3.Nf3 g6 - Symmetrical 3 Knights [+0.52] [+0.52] (3)
│ ├── A34n - 2…Nf6 3.Nf3 d5 - Symmetrical 3 Knights [+0.20] [+0.20] (0)
│ ├── A34o - 2…g6 3.g3 Bg7 4.Bg2 - Symmetrical [+0.22] [+0.22] (5)
│ ├── A34p - 2…Nf6 3.Nf3 e6 4.g3 - Symmetrical 3 Knights [+0.25] [+0.25] (12)
│ ├── A34q - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 - Symmetrical 3 Knights Exchange [+0.31] [+0.31] (56)
│ ├── A34r - 2…Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 - Symmetrical [+0.14] [+0.14] (1)
│ ├── A34s - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.g3 - Symmetrical 3 Knights [+0.10] [+0.10] (14)
│ ├── A34t - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 - Symmetrical 3 Knights [+0.24] [+0.24] (1)
│ ├── A34u - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.d4 - Symmetrical 3 Knights [+0.29] [+0.29] (0)
│ ├── A34v - 2…Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 - Symmetrical Rubinstein System [+0.12] [+0.12] (0)
│ ├── A34w - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 Nb4 - Symmetrical 3 Knights [+0.26] [+0.26] (1)
│ ├── A34x - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 Nxc3 - Symmetrical 3 Knights [+0.60] [+0.60] (0)
│ ├── A34y - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.d4 cxd4 - Symmetrical 3 Knights [+0.49] [+0.49] (4)
│ └── A34z - 2…Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.d4 Nxc3 - Symmetrical 3 Knights [+0.27] [+0.27] (25)
├── A35 - 1.c4 c5 2.Nc3 Nc6 - English [+0.25] [+0.25] (202)
│ ├── A35a - 2…Nc6 - Symmetrical [+0.22] [+0.22] (0)
│ ├── A35b - 3.e3 - Symmetrical [+0.16] [+0.16] (0)
│ ├── A35c - 3.Nf3 - Symmetrical [+0.26] [+0.26] (14)
│ ├── A35d - 3.Nf3 g6 - Symmetrical [+0.35] (3)
│ ├── A35e - 3.Nf3 g6 4.e3 - Symmetrical [+0.45] (45)
│ ├── A35f - 3.Nf3 g6 4.e3 Bg7 - Symmetrical [+0.53] (15)
│ ├── A35g - 3.Nf3 Nf6 - Symmetrical Four Knights [+0.32] [+0.32] (142)
│ ├── A35g - 3.Nf3 Nf6 4.d4 [+0.25] (0)
│ ├── A35h - 3.Nf3 Nf6 4.e3 [+0.13] (11)
│ ├── A35i - 3.Nf3 Nf6 4.e3 e5 [+0.21] (52)
│ ├── A35j - 3.Nf3 Nf6 4.g3 [+0.28] (15)
│ ├── A35k - 3.Nf3 Nf6 4.g3 d5 - Symmetrical Four Knights [+0.27] (18)
│ └── A35l - 3.Nf3 Nf6 4.g3 d5 5.cxd5 - Symmetrical Four Knights [+0.02] (27)
├── A36 - 1.c4 c5 2.Nc3 Nc6 3.g3 - English [+0.21] [+0.21] (180)
│ ├── A36a - 3.g3 - Symmetrical [+0.26] [+0.26] (0)
│ ├── A36b - 3…Nf6 - Symmetrical [+0.32] [+0.32] (6)
│ ├── A36c - 3…e6 4.Nf3 Nf6 - Symmetrical Keres-Parma System [+0.27] [+0.27] (0)
│ ├── A36d - 3…e6 4.Nf3 Nf6 5.Bg2 Be7 6.O-O d5 7.cxd5 Nxd5 - Symmetrical Keres-Parma Main Line Exchange [+0.49] (0)
│ ├── A36e - 3…g6 4.Bg2 - Symmetrical [+0.20] [+0.20] (0)
│ ├── A36e - 3…g6 4.Bg2 Bg7 - Symmetrical [+0.22] [+0.22] (7)
│ ├── A36f - 3…g6 4.Bg2 Bg7 5.d3 - Symmetrical [-0.05] [-0.05] (42)
│ ├── A36g - 3…g6 4.Bg2 Bg7 5.a3 - Symmetrical [+0.13] (17)
│ ├── A36h - 3…g6 4.Bg2 Bg7 5.a3 e6 - Symmetrical [+0.18] (7)
│ ├── A36i - 3…g6 4.Bg2 Bg7 5.a3 d6 - Symmetrical [+0.17] (11)
│ ├── A36j - 3…g6 4.Bg2 Bg7 5.b3 - Symmetrical [+0.08] (11)
│ ├── A36k - 3…g6 4.Bg2 Bg7 5.e3 - Symmetrical [+0.17] [+0.17] (5)
│ ├── A36l - 3…g6 4.Bg2 Bg7 5.e3 e5 - Symmetrical (Botvinnik Reversed) [+0.28] [+0.28] (7)
│ ├── A36m - 3…g6 4.Bg2 Bg7 5.e3 e6 - Symmetrical [+0.19] [+0.19] (3)
│ ├── A36m - 3…g6 4.Bg2 Bg7 5.e3 e6 6.Nge2 - Symmetrical [+0.17] (0)
│ ├── A36m - 3…g6 4.Bg2 Bg7 5.e3 e6 6.Nge2 Nge7 - Symmetrical [+0.16] [+0.16] (12)
│ ├── A36n - 3…g6 4.Bg2 Bg7 5.e4 - Symmetrical Botvinnik System [-0.15] [-0.15] (117)
│ ├── A36o - 3…g6 4.Bg2 Bg7 5.e4 Nf6 - Symmetrical Botvinnik [-0.07] (0)
│ ├── A36o - 3…g6 4.Bg2 Bg7 5.e4 Nf6 6.Nge2 - Symmetrical Botvinnik [-0.09] (0)
│ ├── A36p - 3…g6 4.Bg2 Bg7 5.e4 e6 - Symmetrical Botvinnik [-0.12] [-0.12] (1)
│ ├── A36p - 3…g6 4.Bg2 Bg7 5.e4 e6 6.Nge2 Nge7 - Symmetrical Botvinnik [-0.01] (2)
│ ├── A36q - 3…g6 4.Bg2 Bg7 5.e4 e6 6.Nge2 Nge7 7.O-O O-O 8.d3 - Symmetrical Botvinnik [-0.14] (0)
│ ├── A36r - 3…g6 4.Bg2 Bg7 5.e4 e6 6.Nge2 Nge7 7.O-O O-O 8.d3 d6 - Symmetrical Botvinnik [-0.08] (7)
│ ├── A36s - 3…g6 4.Bg2 Bg7 5.e4 d6 - Symmetrical Botvinnik [-0.12] (0)
│ ├── A36t - 3…g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 - Symmetrical Botvinnik [-0.20] (3)
│ ├── A36u - 3…g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 Nf6 - Symmetrical Botvinnik [-0.05] (1)
│ ├── A36v - 3…g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 Nf6 7.O-O O-O - Symmetrical Botvinnik System [-0.15] (1)
│ ├── A36w - 3…g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 Nf6 7.O-O O-O 8.d3 - Symmetrical Botvinnik System [-0.07] (1)
│ ├── A36x - 3…g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 Nf6 7.O-O O-O 8.d3 Rb8 - Symmetrical Botvinnik System [-0.02] [-0.02] (5)
│ ├── A36y - 3…g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 Nf6 7.O-O O-O 8.d3 Ne8 - Symmetrical Botvinnik System [+0.11] (3)
│ └── A36z - 3…g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 Nf6 7.O-O O-O 8.d3 a6 - Symmetrical Botvinnik System [+0.02] (10)
├── A37 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 - English [+0.18] [+0.18] (213)
│ ├── A37a - 5.Nf3 - Symmetrical [+0.20] [+0.20] (5)
│ ├── A37b - 5…a6 [+0.26] (1)
│ ├── A37c - 5…Nh6 [+0.22] (2)
│ ├── A37d - 5…Nh6 6.O-O [+0.16] (5)
│ ├── A37e - 5…d6 [+0.16] [+0.16] (8)
│ ├── A37f - 5…d6 6.d3 [-0.16] (9)
│ ├── A37g - 5…d6 6.O-O [+0.13] (56)
│ ├── A37h - 5…d6 6.O-O Nh6 [+0.17] (7)
│ ├── A37i - 5…e6 [+0.14] [+0.14] (17)
│ ├── A37j - 5…e6 6.d3 - Symmetrical [-0.14] [-0.14] (5)
│ ├── A37k - 5…e6 6.e3 [+0.03] (1)
│ ├── A37l - 5…e6 6.O-O [+0.08] (4)
│ ├── A37l - 5…e6 6.O-O Nge7 - Symmetrical [+0.08] (4)
│ ├── A37m - 5…e6 6.O-O Nge7 7.e3 - Symmetrical [+0.07] (8)
│ ├── A37n - 5…e6 6.O-O Nge7 7.d3 - Symmetrical [-0.16] (2)
│ ├── A37o - 5…e6 6.O-O Nge7 7.d3 O-O - Symmetrical [-0.22] (6)
│ ├── A37p - 5…e6 6.O-O Nge7 7.d3 O-O 8.Bd2 - Symmetrical [-0.24] (6)
│ ├── A37q - 5…e5 - Symmetrical [+0.31] [+0.31] (132)
│ ├── A37r - 5…e5 6.a3 [+0.31] (15)
│ ├── A37s - 5…e5 6.d3 [+0.27] (1)
│ ├── A37t - 5…e5 6.d3 Nge7 [+0.31] (5)
│ ├── A37u - 5…e5 6.O-O [+0.18] (0)
│ ├── A37u - 5…e5 6.O-O d6 - Symmetrical [+0.30] (13)
│ ├── A37v - 5…e5 6.O-O d6 7.d3 - Symmetrical [+0.19] (0)
│ ├── A37v - 5…e5 6.O-O d6 7.d3 Nge7 - Symmetrical [+0.20] (2)
│ ├── A37w - 5…e5 6.O-O d6 7.d3 Nge7 8.a3 - Symmetrical [+0.27] (9)
│ ├── A37x - 5…e5 6.O-O Nge7 - Symmetrical [+0.30] [+0.30] (14)
│ ├── A37y - 5…e5 6.O-O Nge7 7.d3 - Symmetrical [+0.26] (0)
│ ├── A37y - 5…e5 6.O-O Nge7 7.d3 O-O - Symmetrical [+0.29] (1)
│ └── A37y - 5…e5 6.O-O Nge7 7.d3 O-O 8.a3 - Symmetrical [+0.17] (3)
├── A38 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 - English [+0.41] [+0.41] (24)
│ ├── A38b - 6.d4 - Symmetrical Main Line [+0.33] [+0.33] (4)
│ ├── A38c - 6.O-O - Symmetrical Main Line [+0.27] [+0.27] (0)
│ ├── A38d - 6.O-O d5 - Symmetrical Main Line [+0.66] [+0.66] (0)
│ ├── A38e - 6.O-O d6 - Symmetrical Main Line [+0.24] [+0.24] (4)
│ ├── A38f - 6.O-O O-O - Symmetrical Main Line [+0.38] [+0.38] (0)
│ ├── A38g - 6.O-O O-O 7.Rb1 [-0.39] (0)
│ ├── A38h - 6.O-O O-O 7.b3 - Symmetrical Main Line [-0.27] [-0.27] (13)
│ ├── A38i - 6.O-O O-O 7.a3 [-0.29] (0)
│ ├── A38j - 6.O-O O-O 7.a3 d6 [+0.05] (2)
│ ├── A38k - 6.O-O O-O 7.d3 [+0.04] (2)
│ ├── A38l - 6.O-O O-O 7.d3 a6 [+0.25] (1)
│ ├── A38m - 6.O-O O-O 7.d3 d5 [+0.05] (3)
│ ├── A38n - 6.O-O O-O 7.d3 d6 [+0.01] (0)
│ ├── A38o - 6.O-O O-O 7.d3 d6 8.Rb1 [-0.01] (1)
│ ├── A38p - 6.O-O O-O 7.d3 d6 8.Bd2 [+0.00] (0)
│ ├── A38q - 6.O-O O-O 7.d3 d6 8.a3 [+0.02] (3)
│ └── A38r - 6.O-O O-O 7.d3 d6 8.a3 a6 [+0.02] (1)
└── 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] [+0.23] (85)
├── A39b - 7…cxd4 - Symmetrical Main Line [+0.39] (0)
├── A39c - 7…cxd4 8.Nxd4 - Symmetrical Main Line [+0.43] (0)
├── A39d - 7…cxd4 8.Nxd4 Qa5 - Symmetrical Main Line [+0.37] (0)
├── A39e - 7…cxd4 8.Nxd4 Qb6 - Symmetrical Main Line [+0.57] (0)
├── A39e - 7…cxd4 8.Nxd4 Qb6 9.Nc2 - Symmetrical Main Line [+0.57] (0)
├── A39f - 7…cxd4 8.Nxd4 a6 - Symmetrical Main Line [+0.71] (0)
├── A39g - 7…cxd4 8.Nxd4 d6 - Symmetrical Main Line [+0.67] (0)
├── A39h - 7…cxd4 8.Nxd4 Ng4 - Symmetrical Main Line [+0.72] (0)
├── A39i - 7…cxd4 8.Nxd4 Ng4 9.e3 d6 - Symmetrical Main Line [+0.72] (0)
├── A39j - 7…cxd4 8.Nxd4 Nxd4 - Symmetrical Main Line [+0.43] (0)
├── A39j - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 - Symmetrical Main Line [+0.42] (0)
├── A39k - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 - Symmetrical Main Line [+0.36] (1)
├── A39l - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd2 - Symmetrical Main Line [-0.03] (0)
├── A39m - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd3 - Symmetrical Main Line [+0.41] (0)
├── A39n - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd3 Bf5 - Symmetrical Main Line [+0.44] (0)
├── A39o - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd3 Rb8 - Symmetrical Main Line [+0.45] (0)
├── A39p - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd3 a6 - Symmetrical Main Line [+0.37] (0)
├── A39q - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Bd2 - Symmetrical Main Line [+0.38] (1)
├── A39q - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Bd2 Rb8 - Symmetrical Main Line [+0.40] (1)
└── A39r - 7…cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Bd2 Rb8 12.Rac1 - Symmetrical Main Line [+0.42] (0)
-
![A10 - 1.c4 - English [+0.14]](https://thomasollo.net/wp-content/uploads/2025/12/A10_-_1_c4_-_English_Opening-2-265x265.png)
A10 - 1.c4 - English [+0.14] (125)
+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 - English [+0.44]](https://thomasollo.net/wp-content/uploads/2025/12/A11_-_1_c4_c6_-_English_Opening_Caro-Kann_Defensiv-265x265.png)
A11 - 1.c4 c6 - English [+0.44] (351)
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, a8, h8) Sécurité du roi ♔ Blancs♚ NoirsStatut● Au centre !●… -
![A12 - 1.c4 c6 2.Nf3 d5 3.b3 - English [+0.06]](https://thomasollo.net/wp-content/uploads/2025/12/A12_-_1_c4_Nf6_2_g3_c6_3_Nf3_d5_4_-_Reti_Opening-265x265.png)
A12 - 1.c4 c6 2.Nf3 d5 3.b3 - English [+0.06] (37)
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● f2→g3, h2→g3● c6→d5, b7→c6Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes—● e4 (2v0), ● g4 (2v0)Cases faibles——Centre● d4 (1v0), ● e5 (1v0)● d5 (3v1), ● e4 (2v0) Colonnes et diagonales ♔ Blancs♚ Noirs Pièces ♔ Blancs♚ NoirsBc1● Bc1 Non… -
![A13 - 1.c4 e6 - English [+0.34]](https://thomasollo.net/wp-content/uploads/2026/02/A13_-_1_c4_e6_-_English_Opening_Agincourt_Defense-265x265.png)
A13 - 1.c4 e6 - English [+0.34] (455)
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, c8, f8, a8, h8) Sécurité du roi ♔… -
![A14 - 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 - English [+0.41]](https://thomasollo.net/wp-content/uploads/2025/12/A14_-_1_c4_e6_2_Nf3_d5_3_g3_Nf6_4_Bg2_Be7_5_O-O_-_-265x265.png)
A14 - 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 - English [+0.41] (206)
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 - English [+0.33]](https://thomasollo.net/wp-content/uploads/2025/12/A15_-_1_c4_Nf6_-_English_Opening_Anglo-Indian_Defe-265x265.png)
A15 - 1.c4 Nf6 - English [+0.33] (117)
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 - English [+0.22]](https://thomasollo.net/wp-content/uploads/2026/02/A16_-_1_c4_Nf6_2_Nc3_d5_3_cxd5_Nxd5_-_English_Open-265x265.png)
A16 - 1.c4 Nf6 2.Nc3 - English [+0.22] (216)
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 - English [+0.50]](https://thomasollo.net/wp-content/uploads/2025/12/A17_-_1_c4_Nf6_2_Nc3_e6_-_English_Opening_Anglo-In-265x265.png)
A17 - 1.c4 Nf6 2.Nc3 e6 - English [+0.50] (219)
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 [+0.33]](https://thomasollo.net/wp-content/uploads/2025/12/A18_-_1_c4_e6_2_Nc3_Nf6_3_e4_-_English_Opening-265x265.png)
A18 - 1.c4 Nf6 2.Nc3 e6 3.e4 - English [+0.33] (77)
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 [+0.44]](https://thomasollo.net/wp-content/uploads/2025/12/A19_-_1_c4_e6_2_Nc3_Nf6_3_e4_c5_-_English_Opening_-265x265.png)
A19 - 1.c4 Nf6 2.Nc3 e6 3.e4 c5 - English [+0.44] (29)
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 - English [+0.25]](https://thomasollo.net/wp-content/uploads/2025/12/A20_-_1_c4_e5_2_g3_h5_-_English_Opening-265x265.png)
A20 - 1.c4 e5 - English [+0.25] (314)
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● f2→g3, h2→g3—Passés——Majorité—— Cases ♔ Blancs♚ NoirsCases fortes——Cases faibles——Centre● d5 (1v0)● d4 (1v0) Colonnes et… -
![A21 - 1.c4 e5 2.Nc3 - English [+0.14]](https://thomasollo.net/wp-content/uploads/2025/12/A21_-_1_c4_e5_2_Nc3_-_English_Opening_Kings_Englis-265x265.png)
A21 - 1.c4 e5 2.Nc3 - English [+0.14] (234)
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 - English [+0.13]](https://thomasollo.net/wp-content/uploads/2025/12/A22_-_1_c4_e5_2_Nc3_Nf6_-_English_Opening_Kings_En-265x265.png)
A22 - 1.c4 e5 2.Nc3 Nf6 - English [+0.13] (142)
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 - English [+0.28]](https://thomasollo.net/wp-content/uploads/2025/12/A23_-_1_c4_e5_2_Nc3_Nf6_3_g3_c6_-_English_Opening_-265x265.png)
A23 - 1.c4 e5 2.Nc3 Nf6 3.g3 c6 - English [+0.28] (27)
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—● d7Chaînes● f2→g3, h2→g3●… -
![A24 - 1.c4 e5 2.Nc3 Nf6 3.g3 g6 - English [+0.44]](https://thomasollo.net/wp-content/uploads/2025/12/A24_-_1_c4_e5_2_Nc3_Nf6_3_g3_g6_-_English_Opening_-265x265.png)
A24 - 1.c4 e5 2.Nc3 Nf6 3.g3 g6 - English [+0.44] (29)
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—● f7Chaînes● f2→g3, h2→g3● f7→g6, h7→g6Passés——Majorité—— Cases ♔… -
![A25 - 1.c4 e5 2.Nc3 Nc6 - English [+0.38]](https://thomasollo.net/wp-content/uploads/2025/12/A25_-_1_c4_e5_2_Nc3_Nc6_3_g3_g6_4_Bg2_Bg7_-_Englis-265x265.png)
A25 - 1.c4 e5 2.Nc3 Nc6 - English [+0.38] (154)
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 - English [+0.24]](https://thomasollo.net/wp-content/uploads/2025/12/A26_-_1_c4_e5_2_Nc3_Nc6_3_g3_g6_4_Bg2_Bg7_5_d3_d6_-265x265.png)
A26 - 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 - English [+0.24] (99)
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 - English [+0.18]](https://thomasollo.net/wp-content/uploads/2025/12/A27_-_1_c4_e5_2_Nc3_Nc6_3_Nf3_-_English_Opening_Ki-265x265.png)
A27 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 - English [+0.18] (34)
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 [+0.22]](https://thomasollo.net/wp-content/uploads/2025/12/A28_-_1_c4_e5_2_Nc3_Nf6_3_Nf3_Nc6_4_-_English_Open-265x265.png)
A28 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 - English [+0.22] (306)
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 [+0.19]](https://thomasollo.net/wp-content/uploads/2026/01/A29_-_1_c4_e5_2_Nc3_Nf6_3_Nf3_Nc6_4_g3_-_English_O-265x265.png)
A29 - 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 - English [+0.19] (483)
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 - English [+0.24]](https://thomasollo.net/wp-content/uploads/2026/03/chess_cat_19045-265x265.png)
A30 - 1.c4 c5 - English [+0.24] (556)
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. 2)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 centre !Droits de roqueO-O / O-O-OO-O / O-O-O Thèmes ♔ Blancs♚ NoirsPhaseOuvertureCentresemi-ouvertRuptures● d2-d3, ● e2-e3, ● f2-f3● ...d7-d6, ● ...d7-d5, ● ...e7-e6,… -
![A31 - 1.c4 c5 2.Nf3 Nf6 3.d4 - English [+0.12]](https://thomasollo.net/wp-content/uploads/2025/12/A31_-_1_c4_Nf6_2_d4_c5_3_Nf3_-_English_Opening-265x265.png)
A31 - 1.c4 c5 2.Nf3 Nf6 3.d4 - English [+0.12] (90)
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 [+0.13]](https://thomasollo.net/wp-content/uploads/2025/12/A32_-_1_c4_e6_2_d4_c5_3_Nf3_cxd4_4_-_English_Openi-265x265.png)
A32 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 - English [+0.13] (133)
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—● d4, ● d7Pions isolés——Arriérés—● d7Chaînes—● d7→e6,… -
![A33 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 - English [+0.32]](https://thomasollo.net/wp-content/uploads/2026/03/chess_cat_19046-265x265.png)
A33 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 - English [+0.32] (198)
Structure de pions ♔ Blancs♚ NoirsPions doublés——Pions isolés——Arriérés—● d7Chaînes—● d7→e6, f7→e6Passés——Majorité● aile_dame 3v2● centre 2v1 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 centre !Droits de roqueO-O / O-O-OO-O / O-O-O Thèmes ♔ Blancs♚ NoirsPhaseOuvertureCentresemi-ouvertRuptures● c4-c5, ● e2-e3,… -
![A34 - 1.c4 c5 2.Nc3 - English [+0.25]](https://thomasollo.net/wp-content/uploads/2026/02/A34_-_1_Nf3_Nf6_2_c4_c5_3_Nc3_e6_-_English_Opening-265x265.png)
A34 - 1.c4 c5 2.Nc3 - English [+0.25] (303)
Base Masters : Blancs 32.1%, Nulles 50.0%, Noirs 17.9%. Coups candidats 4.g3 (70.3% — Blancs: 31.3% | Nulles: 52.2% | Noirs: 16.5%)4.e3 (14.6% — Blancs: 33.6% | Nulles: 45.5% | Noirs: 20.9%)4.d4 (9.4% — Blancs: 32.7% | Nulles: 44.4% | Noirs: 22.9%)4.e4 (5.5% — Blancs: 36.4% | Nulles: 43.8% | Noirs: 19.9%)4.a3 (0.1% — Blancs: 44.4% | Nulles: 33.3% | Noirs: 22.2%)4.d3 auto Analyse coup par coup — 6 demi-coups commentés 1.Nf3 Contrôle d4, e5. 1...Nf6 Contrôle e4, d5. 2.c4 Avancée centrale — contrôle b5, d5. Prépare d4, Nc3, e4. 2...c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5. 3.Nc3 Contrôle d4, e4, d5, e5. 3...e6 Avancée centrale — contrôle d5, f5. Prépare d5, Be7, Bd6. Structure de pions ♔ Blancs♚… -
![A35 - 1.c4 c5 2.Nc3 Nc6 - English [+0.25]](https://thomasollo.net/wp-content/uploads/2026/03/chess_cat_19047-265x265.png)
A35 - 1.c4 c5 2.Nc3 Nc6 - English [+0.25] (202)
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 !● Au centre !Droits de roqueO-O / O-O-OO-O / O-O-O… -
![A36 - 1.c4 c5 2.Nc3 Nc6 3.g3 - English [+0.21]](https://thomasollo.net/wp-content/uploads/2026/03/chess_cat_19048-265x265.png)
A36 - 1.c4 c5 2.Nc3 Nc6 3.g3 - English [+0.21] (180)
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● Au centre !● Au centre !Droits de roqueO-O / O-O-OO-O… -
![A37 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 - English [+0.18]](https://thomasollo.net/wp-content/uploads/2026/03/chess_cat_19049-265x265.png)
A37 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 - English [+0.18] (213)
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 Enfermé (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 centre !Droits de roqueO-O / O-O-OO-O… -
![A38 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 - English [+0.41]](https://thomasollo.net/wp-content/uploads/2026/01/A38_-_1_c4_Nf6_2_Nf3_c5_3_Nc3_Nc6_4_g3_g6_5_Bg2_Bg-265x265.png)
A38 - 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 - English [+0.41] (24)
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 [+0.23]](https://thomasollo.net/wp-content/uploads/2025/12/A39_-_1_c4_Nf6_2_Nf3_c5_3_Nc3_Nc6_4_g3_g6_5_Bg2_Bg-265x265.png)
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] (85)
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).…