A20: English Opening
- English Opening: Drill Variation
1. c4 e5 2. g3 h5 - English Opening: King's English Variation
1. c4 e5 - English Opening: King's English Variation, Kahiko-Hula Gambit
1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3 - English Opening: King's English Variation, Nimzowitsch Variation
1. c4 e5 2. Nf3 - English Opening: King's English Variation, Nimzowitsch-Flohr Variation
1. c4 e5 2. Nf3 e4