ECO A26
ECO A00–A99 — Flank openings: 1.c4, 1.Nf3, 1.f4 and other first moves, plus early Indian and Benoni systems.
2 named opening lines are classified under ECO code A26.
- English Opening: King's English Variation, Botvinnik System — 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.e4
- English Opening: King's English Variation, Closed System, Full Symmetry — 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6