ECO A20: English Opening
ECO A20 is part of volume A — Flank Openings.
The Lichess chess-openings dataset files 5 named lines under it.
The shortest is English Opening: King's English Variation:
1. c4 e5.
That position has come up in 28,870,803 Lichess games between players rated 1600 to 2500: White won 51.4%, 4.8% were drawn and Black won 43.7%.
| Opening | Moves | Plies |
|---|---|---|
| English Opening: King's English Variation | 1. c4 e5 |
2 |
| English Opening: King's English Variation, Nimzowitsch Variation | 1. c4 e5 2. Nf3 |
3 |
| English Opening: Drill Variation | 1. c4 e5 2. g3 h5 |
4 |
| English Opening: King's English Variation, Nimzowitsch-Flohr Variation | 1. c4 e5 2. Nf3 e4 |
4 |
| English Opening: King's English Variation, Kahiko-Hula Gambit | 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3 |
7 |