ECO A15
ECO A00–A99 — Flank openings: 1.c4, 1.Nf3, 1.f4 and other first moves, plus early Indian and Benoni systems.
13 named opening lines are classified under ECO code A15.
- English Opening: Anglo-Indian Defense — 1.c4 Nf6
- English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld — 1.c4 Nf6 2.Nc3 g6 3.Nf3 Bg7 4.e4
- English Opening: Anglo-Indian Defense, Grünfeld Formation — 1.c4 Nf6 2.Nf3 g6 3.g3 d5
- English Opening: Anglo-Indian Defense, King's Indian Formation — 1.c4 Nf6 2.Nf3 g6
- English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto — 1.c4 Nf6 2.Nf3 g6 3.g3 b6 4.Bg2 Bb7
- English Opening: Anglo-Indian Defense, King's Knight Variation — 1.c4 Nf6 2.Nf3
- English Opening: Anglo-Indian Defense, Old Indian Formation — 1.c4 Nf6 2.Nf3 d6
- English Opening: Anglo-Indian Defense, Queen's Indian Formation — 1.c4 Nf6 2.Nf3 b6
- English Opening: Anglo-Indian Defense, Romanishin Variation — 1.c4 e6 2.Nf3 Nf6 3.g3 a6
- English Opening: Anglo-Indian Defense, Scandinavian Defense — 1.c4 Nf6 2.Nf3 d5
- English Opening: Anglo-Indian Defense, Scandinavian Defense, Exchange Variation — 1.c4 Nf6 2.Nf3 d5 3.cxd5 Nxd5
- English Opening: Anglo-Indian Defense, Slav Formation — 1.c4 Nf6 2.Nf3 g6 3.g3 c6
- English Orangutan — 1.c4 Nf6 2.b4