A20 is the opening English Opening: Drill Variation of the volume A · Flank openings: 4 half-moves to the position in the diagram, 5 variations in the ECO table.
What the games say
2,669 games in the collections, from 1851 to 2022. Mean rating of the games with ratings: 2505.
White wins 36 %, draws 37 %, Black wins 27 %
Most games: Navara,D (35), Hammer,J (30), Kovalenko,I (30), Suba, Mihai (28), Artemiev,V (27)
All 5 variations
- 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 ♘f6 3.f4 exf4 4.♘f3
- English Opening: King's English Variation, Nimzowitsch Variation 1.c4 e5 2.♘f3
- English Opening: King's English Variation, Nimzowitsch-Flohr Variation 1.c4 e5 2.♘f3 e4