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ECO A25

ECO A00–A99 — Flank openings: 1.c4, 1.Nf3, 1.f4 and other first moves, plus early Indian and Benoni systems.

6 named opening lines are classified under ECO code A25.

English Opening: Closed, Taimanov Variation — 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Rb1 Nh6 5.Bg2 Bg7
English Opening: King's English Variation, Bremen-Hort Variation — 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Be6
English Opening: King's English Variation, Closed System — 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3
English Opening: King's English Variation, Hungarian Attack — 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Rb1
English Opening: King's English Variation, Reversed Closed Sicilian — 1.c4 e5 2.Nc3 Nc6
English Opening: King's English Variation, Taimanov Variation — 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7