Bird Opening
28 named lines, ECO A02–B21. The main position arises after1. f4.
| Line | Games | White / draw / Black |
|---|---|---|
| Bird Opening A02 · 1. f4 | 134,486 | |
| Dutch Variation A03 · 1. f4 d5 | 51,592 | |
| From's Gambit A02 · 1. f4 e5 | 12,209 | |
| Hobbs Gambit A02 · 1. f4 g5 | 360 | |
| Horsefly Defense A02 · 1. f4 Nh6 | 228 | |
| Myers Defense A02 · 1. f4 b5 | 194 | |
| Dutch Variation, Dudweiler Gambit A03 · 1. f4 d5 2. g4 | 185 | |
| From's Gambit, Bahr Gambit A02 · 1. f4 e5 2. Nc3 | 15 | |
| Mujannah A02 · 1. f4 Nf6 2. c4 | 88 | |
| Sturm Gambit A03 · 1. f4 d5 2. c4 | 449 | |
| Wagner-Zwitersch Gambit A02 · 1. f4 f5 2. e4 | 244 | |
| Williams Gambit (1… d5 2. e4) A03 · 1. f4 d5 2. e4 | 542 | |
| Double Duck Formation A02 · 1. f4 f5 2. d4 d5 | 87 | |
| Hobbs-Zilbermints Gambit A02 · 1. f4 h6 2. Nf3 g5 | 37 | |
| Lasker Gambit A02 · 1. f4 e5 2. fxe5 f6 | 337 | |
| Platz Gambit A02 · 1. f4 e5 2. fxe5 Ne7 | 18 | |
| Schlechter Gambit A02 · 1. f4 e5 2. fxe5 Nc6 | 1,695 | |
| Batavo-Polish Attack A02 · 1. f4 Nf6 2. Nf3 g6 3. b4 | 2 | |
| Dutch Variation, Batavo Gambit B21 · 1. e4 c5 2. f4 d5 3. Nf3 dxe4 | 631 | |
| From's Gambit, Langheld Gambit A02 · 1. f4 e5 2. fxe5 d6 3. exd6 Nf6 | 68 | |
| Lasker Variation A03 · 1. f4 d5 2. Nf3 Nf6 3. e3 c5 | 392 | |
| Siegener Gambit A02 · 1. f4 e5 2. d4 exd4 3. Nf3 c5 4. c3 | – | |
| Swiss Gambit A02 · 1. f4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 | – | |
| Williams Gambit (3… Nf6 4. Qe2) A03 · 1. f4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Qe2 | 18 | |
| Williams-Zilbermints Gambit A03 · 1. f4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Nge2 | 4 | |
| From's Gambit, Lasker Variation A02 · 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5 | 942 | |
| From's Gambit, Lipke Variation A02 · 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4 | 3 | |
| Thomas Gambit A03 · 1. f4 d5 2. b3 Nf6 3. Bb2 d4 4. Nf3 c5 5. e3 | – |