ECO A05

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

10 named opening lines are classified under ECO code A05.

• King's Indian Attack: Smyslov Variation — 1.Nf3 Nf6 2.g3 g6 3.b4
• King's Indian Attack: Spassky Variation — 1.Nf3 Nf6 2.g3 b5
• King's Indian Attack: Symmetrical Defense — 1.Nf3 Nf6 2.g3 g6
• King's Indian Attack: Wahls Defense — 1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 d5
• Polish Opening: Zukertort System — 1.Nf3 Nf6 2.b4 g6 3.Bb2
• Zukertort Opening: Double Fianchetto Attack — 1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 O-O 5.Bg2 d6 6.O-O
• Zukertort Opening: Lemberger Gambit — 1.Nf3 Nf6 2.e4
• Zukertort Opening: Myers Polish Attack — 1.Nf3 Nf6 2.a4 g6 3.b4
• Zukertort Opening: Nimzo-Larsen Variation — 1.Nf3 Nf6 2.b3
• Zukertort Opening: Quiet System — 1.Nf3 Nf6 2.e3