ECO A13: English Opening

ECO A13 is part of volume A — Flank Openings. The Lichess chess-openings dataset files 16 named lines under it. The shortest is English Opening: Agincourt Defense: 1. c4 e6.

That position has come up in 11,163,707 Lichess games between players rated 1600 to 2500: White won 49.6%, 5.6% were drawn and Black won 44.8%.

Opening	Moves	Plies
English Opening: Agincourt Defense	`1. c4 e6`	2
English Opening: Agincourt Defense	`1. c4 e6 2. Nf3`	3
English Opening: Agincourt Defense	`1. c4 e6 2. Nf3 d5`	4
English Opening: Agincourt Defense, Catalan Defense	`1. c4 e6 2. Nf3 d5 3. g3 c5`	6
English Opening: Agincourt Defense, Kurajica Defense	`1. c4 e6 2. Nf3 d5 3. g3 c6`	6
English Opening: Neo-Catalan	`1. c4 e6 2. Nf3 d5 3. g3 Nf6`	6
English Opening: Agincourt Defense, Bogoljubow Defense	`1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bd6`	8
English Opening: Agincourt Defense, Catalan Defense Accepted	`1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4`	8
English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense	`1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 c6`	8
English Opening: Neo-Catalan Declined	`1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7`	8
English Opening: Romanishin Gambit	`1. c4 Nf6 2. Nf3 e6 3. g3 a6 4. Bg2 b5`	8
English Opening: Agincourt Defense, Catalan Defense	`1. c4 e6 2. Nf3 d5 3. g3 b6 4. Bg2 Bb7 5. O-O`	9
English Opening: Agincourt Defense, Wimpy System	`1. c4 e6 2. Nf3 Nf6 3. b3 d5 4. Bb2 c5 5. e3`	9
English Opening: Agincourt Defense	`1. c4 e6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Be7 5. e3 O-O`	10
English Opening: Agincourt Defense	`1. c4 e6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Be7 5. e3 O-O 6. d4`	11
English Opening: Agincourt Defense, Tarrasch Defense	`1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 c5 5. b3 Nc6 6. O-O Be7`	12