ECO A02
19 named openings and variations are classified as A02. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Bird OpeningA021. f4
- Bird Opening: Batavo-Polish AttackA021. f4 Nf6 2. Nf3 g6 3. b4
- Bird Opening: Double Duck FormationA021. f4 f5 2. d4 d5
- Bird Opening: From's GambitA021. f4 e5
- Bird Opening: From's Gambit, Bahr GambitA021. f4 e5 2. Nc3
- Bird Opening: From's Gambit, Langheld GambitA021. f4 e5 2. fxe5 d6 3. exd6 Nf6
- Bird Opening: From's Gambit, Lasker VariationA021. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5
- Bird Opening: From's Gambit, Lipke VariationA021. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4
- Bird Opening: Hobbs GambitA021. f4 g5
- Bird Opening: Hobbs-Zilbermints GambitA021. f4 h6 2. Nf3 g5
- Bird Opening: Horsefly DefenseA021. f4 Nh6
- Bird Opening: Lasker GambitA021. f4 e5 2. fxe5 f6
- Bird Opening: MujannahA021. f4 Nf6 2. c4
- Bird Opening: Myers DefenseA021. f4 b5
- Bird Opening: Platz GambitA021. f4 e5 2. fxe5 Ne7
- Bird Opening: Schlechter GambitA021. f4 e5 2. fxe5 Nc6
- Bird Opening: Siegener GambitA021. f4 e5 2. d4 exd4 3. Nf3 c5 4. c3
- Bird Opening: Swiss GambitA021. f4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4
- Bird Opening: Wagner-Zwitersch GambitA021. f4 f5 2. e4