1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 - Bishop's Opening: McDonnell Gambit, McDonnell Double Gambit

Bishop’s Opening: McDonnell Gambit, McDonnell Double Gambit

Coups: 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4