C39White1 book lines continue
Kieseritzky Gambit, Berlin Defense
King's Gambit Accepted1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Nxg4
Also known as KGA: Kieseritsky, Berlin Defence, King's Gambit Accepted, Kieseritzky Gambit, Berlin Defense.