├── A10 - 1. c4 - English Opening (5) ├── A10 - 1. Nf3 Nf6 2. c4 c5 3. g3 - English Opening: Anglo-Indian Defense, King's Knight Variation (0) ├── A11 - 1. c4 c6 - English Opening: Caro-Kann Defensive System (5) ├── A13 - 1. c4 e6 - English Opening (24) ├── A14 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4.... - English Opening (25) ├── A15 - 1. c4 1... Nf6 2. g3 2... e5 - English Opening: Anglo-Indian Defense (0) ├── A15 - 1. c4 e6 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 - English Opening: Anglo-Indian Defense, Queen's Indian Formation (1) ├── A15 - 1. c4 Nf6 - English Opening: Anglo-Indian Defense (7) ├── A15 - 1. c4 Nf6 2. Nf3 b6 - English Opening: Anglo-Indian Defense, Queen's Indian Formation (2) ├── A15 - 1. c4 Nf6 2. Nf3 g6 - English Opening: Anglo-Indian Defense, King's Indian Formation (5) ├── A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 - English Opening: Anglo-Indian Defense, King's Knight Variation (1) ├── A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. d4 (2) ├── A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. d4 cxd4 - English Opening: Anglo-Indian Defense, King's Knight Variation (1) ├── A15 - 1. Nf3 Nf6 2. c4 e6 - English opening (11) ├── A15 - 1. Nf3 Nf6 2. c4 Nc6 - English opening (2) ├── A17 - 1. c4 Nf6 2. Nc3 e6 - English Opening: Anglo-Indian Defense, Hedgehog System (0) ├── A18 - 1. c4 e6 2. Nc3 Nf6 3. e4 - English Opening (2) ├── A19 - 1. c4 e6 2. Nc3 Nf6 3. e4 c5 - English Opening: Mikenas-Carls, Sicilian (2) ├── A20 - 1. c4 e5 - English Opening: King's English Variation (21) ├── A20 - 1. c4 e5 2. g3 Nf6 - English Opening: King's English Variation (4) ├── A21 - 1. c4 e5 2. Nc3 - English Opening: King's English Variation, Reversed Sicilian (11) ├── A22 - 1. c4 e5 2. Nc3 Nf6 - English Opening: King's English Variation, Two Knights Variation (5) ├── A23 - 1. c4 e5 2. Nc3 Nf6 3. g3 c6 - English Opening: King's English Variation, Two Knights Variation, Keres Variation (0) ├── A24 - 1. c4 e5 2. Nc3 Nf6 3. g3 g6 - English Opening: King's English Variation, Two Knights Variation, Fianchetto Line (0) ├── A25 - 1. c4 e5 2. Nc3 Nc6 - English Opening: King's English Variation, Reversed Closed Sicilian (2) ├── A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4.... - English Opening (0) ├── A27 - 1. c4 e5 2. Nc3 Nc6 3. Nf3 - English Opening: King's English Variation, Three Knights System (0) ├── A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4.... - English Opening (19) ├── A28 - 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 - English Opening: King's English Variation, Four Knights Variation (2) ├── A29 - 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (4) ├── A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (4) ├── A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (14) ├── A30 - 1. c4 c5 - English Opening: Symmetrical Variation (5) ├── A30 - 1. Nf3 c5 2. c4 g6 3. e4 Bg7 4. d4 d6 - English Opening: Symmetrical Variation (1) ├── A30 - 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 - English Opening: Symmetrical Variation (1) ├── A30 - 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 - English Opening: Symmetrical Variation (1) ├── A30 - 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 - English Opening: Symmetrical Variation (1) ├── A30 - 1. Nf3 c5 2. c4 Nf6 3. g3 Nc6 4. Bg2 d5 - English Opening: Symmetrical Variation (1) ├── A31 - 1. c4 Nf6 2. d4 c5 3. Nf3 - English Opening (1) ├── A32 - 1. c4 e6 2. d4 c5 3. Nf3 cxd4 4.... - English Opening (1) ├── A33 - 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4.... - English Opening (3) ├── A34 - 1. c4 c5 2. Nc3 - English Opening: Symmetrical Variation, Normal Variation (2) ├── A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 - English Opening: Symmetrical Variation, Rubinstein Variation (2) ├── A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. d4 cxd4 - English Opening: Symmetrical Variation, Three Knights Variation (1) ├── A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. e3 a6 - English Opening: Symmetrical Variation, Three Knights Variation (1) ├── A34 - 1. c4 Nf6 2. Nc3 c5 3. g3 g6 4. Bg2 Bg7 - English Opening: Symmetrical Variation, Fianchetto Variation (1) ├── A34 - 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 b6 - English Opening: Symmetrical Variation, Three Knights Variation (1) ├── A35 - 1. c4 c5 2. Nc3 Nc6 - English Opening: Symmetrical Variation, Two Knights Variation (5) ├── A36 - 1. c4 c5 2. Nc3 Nc6 3. g3 - English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation (7) ├── A37 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 - English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation (0) ├── A37 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 (4) ├── A38 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O (0) ├── A38 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 - English Opening: Symmetrical Variation, Full Symmetry Line (0) ├── A38 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 - English Opening: Symmetrical Variation, Full Symmetry Line (1) ├── A38 - 1. Nf3 c5 2. c4 Nf6 3. g3 Nc6 4. Bg2 g6 - English Opening: Symmetrical Variation, Full Symmetry Line (1) ├── A38 - 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. Nc3 Nc6 6. d4 (1) └── A39 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 - English Opening: Symmetrical Variation, Mecking Variation (0)
-
A10 - 1. c4 - English Opening (5)
Code ECO A10 - English Opening Coups: 1. c4 -
A11 - 1. c4 c6 - English Opening: Caro-Kann Defensive System (5)
English Opening: Caro-Kann Defensive System Coups: 1. c4 c6 -
A13 - 1. c4 e6 - English Opening (24)
Code ECO A13 - English Opening Coups: 1. c4 e6 -
A14 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4.... - English Opening (25)
Code ECO A14 - English Opening Coups: 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O c5 6. cxd5 Nxd5 7. Nc3 Nc6 -
A15 - 1. c4 e6 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 - English Opening: Anglo-Indian Defense, Queen's Indian Formation (1)
English Opening: Anglo-Indian Defense, Queen's Indian Formation -
A15 - 1. c4 Nf6 - English Opening: Anglo-Indian Defense (7)
English Opening: Anglo-Indian Defense (A15) Coups: 1. c4 Nf6 -
A15 - 1. c4 Nf6 2. Nf3 b6 - English Opening: Anglo-Indian Defense, Queen's Indian Formation (2)
English Opening: Anglo-Indian Defense, Queen's Indian Formation Coups: 1. c4 Nf6 2. Nf3 b6 -
A15 - 1. c4 Nf6 2. Nf3 g6 - English Opening: Anglo-Indian Defense, King's Indian Formation (5)
English Opening: Anglo-Indian Defense, King's Indian Formation Coups: 1. c4 Nf6 2. Nf3 g6 -
A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 - English Opening: Anglo-Indian Defense, King's Knight Variation (1)
English Opening: Anglo-Indian Defense, King's Knight Variation -
A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. d4 (2)
English Opening: Anglo-Indian Defense, King's Knight Variation -
A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. d4 cxd4 - English Opening: Anglo-Indian Defense, King's Knight Variation (1)
English Opening: Anglo-Indian Defense, King's Knight Variation -
A18 - 1. c4 e6 2. Nc3 Nf6 3. e4 - English Opening (2)
Code ECO A18 - English Opening Coups: 1. c4 e6 2. Nc3 Nf6 3. e4 -
A19 - 1. c4 e6 2. Nc3 Nf6 3. e4 c5 - English Opening: Mikenas-Carls, Sicilian (2)
English Opening: Mikenas-Carls, Sicilian Coups: 1. c4 e6 2. Nc3 Nf6 3. e4 c5 -
A20 - 1. c4 e5 - English Opening: King's English Variation (21)
English Opening: King's English Variation (A20) Coups: 1. c4 e5 -
A20 - 1. c4 e5 2. g3 Nf6 - English Opening: King's English Variation (4)
English Opening: King's English Variation -
A21 - 1. c4 e5 2. Nc3 - English Opening: King's English Variation, Reversed Sicilian (11)
English Opening: King's English Variation, Reversed Sicilian Coups: 1. c4 e5 2. Nc3 -
A22 - 1. c4 e5 2. Nc3 Nf6 - English Opening: King's English Variation, Two Knights Variation (5)
English Opening: King's English Variation, Two Knights Variation Coups: 1. c4 e5 2. Nc3 Nf6 -
A25 - 1. c4 e5 2. Nc3 Nc6 - English Opening: King's English Variation, Reversed Closed Sicilian (2)
English Opening: King's English Variation, Reversed Closed Sicilian Coups: 1. c4 e5 2. Nc3 Nc6 -
A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4.... - English Opening (19)
Code ECO A28 - English Opening Coups: 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 -
A28 - 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 - English Opening: King's English Variation, Four Knights Variation (2)
English Opening: King's English Variation, Four Knights Variation -
A29 - 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (4)
English Opening: King's English Variation, Four Knights Variation, Fianchetto Line -
A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (14)
English Opening: King's English Variation, Four Knights Variation, Fianchetto Line Coups: 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 -
A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (4)
English Opening: King's English Variation, Four Knights Variation, Fianchetto Line -
A30 - 1. c4 c5 - English Opening: Symmetrical Variation (5)
English Opening: Symmetrical Variation Coups: 1. c4 c5 -
A30 - 1. Nf3 c5 2. c4 g6 3. e4 Bg7 4. d4 d6 - English Opening: Symmetrical Variation (1)
English Opening: Symmetrical Variation -
A30 - 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 - English Opening: Symmetrical Variation (1)
English Opening: Symmetrical Variation -
A30 - 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 - English Opening: Symmetrical Variation (1)
English Opening: Symmetrical Variation -
A30 - 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 - English Opening: Symmetrical Variation (1)
English Opening: Symmetrical Variation -
A30 - 1. Nf3 c5 2. c4 Nf6 3. g3 Nc6 4. Bg2 d5 - English Opening: Symmetrical Variation (1)
English Opening: Symmetrical Variation -
A31 - 1. c4 Nf6 2. d4 c5 3. Nf3 - English Opening (1)
Code ECO A31 - English Opening Coups: 1. c4 Nf6 2. d4 c5 3. Nf3 -
A32 - 1. c4 e6 2. d4 c5 3. Nf3 cxd4 4.... - English Opening (1)
Code ECO A32 - English Opening Coups: 1. c4 e6 2. d4 c5 3. Nf3 cxd4 4. Nxd4 Nf6 -
A33 - 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4.... - English Opening (3)
Code ECO A33 - English Opening Coups: 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. d4 Nc6 5. g3 cxd4 6. Nxd4 Qb6 -
A34 - 1. c4 c5 2. Nc3 - English Opening: Symmetrical Variation, Normal Variation (2)
English Opening: Symmetrical Variation, Normal Variation Coups: 1. c4 c5 2. Nc3 -
A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 - English Opening: Symmetrical Variation, Rubinstein Variation (2)
English Opening: Symmetrical Variation, Rubinstein Variation -
A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. d4 cxd4 - English Opening: Symmetrical Variation, Three Knights Variation (1)
English Opening: Symmetrical Variation, Three Knights Variation -
A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. e3 a6 - English Opening: Symmetrical Variation, Three Knights Variation (1)
English Opening: Symmetrical Variation, Three Knights Variation -
A34 - 1. c4 Nf6 2. Nc3 c5 3. g3 g6 4. Bg2 Bg7 - English Opening: Symmetrical Variation, Fianchetto Variation (1)
English Opening: Symmetrical Variation, Fianchetto Variation -
A34 - 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 b6 - English Opening: Symmetrical Variation, Three Knights Variation (1)
English Opening: Symmetrical Variation, Three Knights Variation -
A35 - 1. c4 c5 2. Nc3 Nc6 - English Opening: Symmetrical Variation, Two Knights Variation (5)
English Opening: Symmetrical Variation, Two Knights Variation Coups: 1. c4 c5 2. Nc3 Nc6 -
A36 - 1. c4 c5 2. Nc3 Nc6 3. g3 - English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation (7)
English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation Coups: 1. c4 c5 2. Nc3 Nc6 3. g3 -
A37 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 (4)
English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation -
A38 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 - English Opening: Symmetrical Variation, Full Symmetry Line (1)
English Opening: Symmetrical Variation, Full Symmetry Line -
A38 - 1. Nf3 c5 2. c4 Nf6 3. g3 Nc6 4. Bg2 g6 - English Opening: Symmetrical Variation, Full Symmetry Line (1)
English Opening: Symmetrical Variation, Full Symmetry Line -
A38 - 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. Nc3 Nc6 6. d4 (1)
English Opening: Symmetrical Variation, Full Symmetry Line














































