ECO family guide

Bird Opening — all variations and ECO codes

28 named lines across 3 ECO codes (A02–B21), spanning ECO volumes A, B. Source: the CC0-licensed lichess.org opening database.

The main line

How the main line scores at your rating

Real Lichess win rates for 1.f4, playing as white — the family's other variations are not separately tracked for win rate yet, main line only.

Scroll to see more →

All 28 named variations

Every named line in the Bird Opening family, from the CC0-licensed ECO classification — not separately tracked for win rate, but every ECO code and move sequence is real, sourced data.

• A02Bird Opening (main line) — 1.f4
• A02Batavo-Polish Attack — 1.f4 Nf6 2.Nf3 g6 3.b4
• A02Double Duck Formation — 1.f4 f5 2.d4 d5
• A02From's Gambit — 1.f4 e5
  • A02Bahr Gambit — 1.f4 e5 2.Nc3
  • A02Langheld Gambit — 1.f4 e5 2.fxe5 d6 3.exd6 Nf6
  • A02Lasker Variation — 1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 g5
  • A02Lipke Variation — 1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 Nh6 5.d4
• A02Hobbs Gambit — 1.f4 g5
• A02Hobbs-Zilbermints Gambit — 1.f4 h6 2.Nf3 g5
• A02Horsefly Defense — 1.f4 Nh6
• A02Lasker Gambit — 1.f4 e5 2.fxe5 f6
• A02Mujannah — 1.f4 Nf6 2.c4
• A02Myers Defense — 1.f4 b5
• A02Platz Gambit — 1.f4 e5 2.fxe5 Ne7
• A02Schlechter Gambit — 1.f4 e5 2.fxe5 Nc6
• A02Siegener Gambit — 1.f4 e5 2.d4 exd4 3.Nf3 c5 4.c3
• A02Swiss Gambit — 1.f4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4
• A02Wagner-Zwitersch Gambit — 1.f4 f5 2.e4
• A03Dutch Variation — 1.f4 d5
  • A03Dudweiler Gambit — 1.f4 d5 2.g4
  • B21Batavo Gambit — 1.e4 c5 2.f4 d5 3.Nf3 dxe4
• A03Lasker Variation — 1.f4 d5 2.Nf3 Nf6 3.e3 c5
• A03Sturm Gambit — 1.f4 d5 2.c4
• A03Thomas Gambit — 1.f4 d5 2.b3 Nf6 3.Bb2 d4 4.Nf3 c5 5.e3
• A03Williams Gambit — 1.f4 d5 2.e4
  A03Williams Gambit — 1.f4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Qe2
• A03Williams-Zilbermints Gambit — 1.f4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Nge2

Browse more

ECO Volume A: Flank Openings → · All ECO families → · Search and play every line in the interactive explorer →