ECO A02
ECO A00–A99 — Flank openings: 1.c4, 1.Nf3, 1.f4 and other first moves, plus early Indian and Benoni systems.
19 named opening lines are classified under ECO code A02.
- Bird Opening — 1.f4
- Bird Opening: Batavo-Polish Attack — 1.f4 Nf6 2.Nf3 g6 3.b4
- Bird Opening: Double Duck Formation — 1.f4 f5 2.d4 d5
- Bird Opening: From's Gambit — 1.f4 e5
- Bird Opening: From's Gambit, Bahr Gambit — 1.f4 e5 2.Nc3
- Bird Opening: From's Gambit, Langheld Gambit — 1.f4 e5 2.fxe5 d6 3.exd6 Nf6
- Bird Opening: From's Gambit, Lasker Variation — 1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 g5
- Bird Opening: From's Gambit, Lipke Variation — 1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 Nh6 5.d4
- Bird Opening: Hobbs Gambit — 1.f4 g5
- Bird Opening: Hobbs-Zilbermints Gambit — 1.f4 h6 2.Nf3 g5
- Bird Opening: Horsefly Defense — 1.f4 Nh6
- Bird Opening: Lasker Gambit — 1.f4 e5 2.fxe5 f6
- Bird Opening: Mujannah — 1.f4 Nf6 2.c4
- Bird Opening: Myers Defense — 1.f4 b5
- Bird Opening: Platz Gambit — 1.f4 e5 2.fxe5 Ne7
- Bird Opening: Schlechter Gambit — 1.f4 e5 2.fxe5 Nc6
- Bird Opening: Siegener Gambit — 1.f4 e5 2.d4 exd4 3.Nf3 c5 4.c3
- Bird Opening: Swiss Gambit — 1.f4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4
- Bird Opening: Wagner-Zwitersch Gambit — 1.f4 f5 2.e4