1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5 - Bird Opening: From's Gambit, Lasker Variation

Bird Opening: From’s Gambit, Lasker Variation

Coups: 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5