ECO A39

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

1 named opening lines are classified under ECO code A39.

• English Opening: Symmetrical Variation, Mecking Variation — 1.c4 Nf6 2.Nf3 c5 3.Nc3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O O-O 7.d4