A21: English Opening
- English Opening: King's English Variation
1. c4 e5 2. Nc3 d6 3. Nf3
- English Opening: King's English Variation, Keres Defense
1. c4 e5 2. Nc3 d6 3. g3 c6
- English Opening: King's English Variation, Kramnik-Shirov Counterattack
1. c4 e5 2. Nc3 Bb4
- English Opening: King's English Variation, Reversed Sicilian
1. c4 e5 2. Nc3
- English Opening: King's English Variation, Smyslov Defense
1. c4 e5 2. Nc3 d6 3. Nf3 Bg4
- English Opening: King's English Variation, Troger Defense
1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6