The Evans Gambit is the opening given by the moves `1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4`, an aggressive variation of the Giuoco Piano.

The Evans Gambit is the opening given by the moves 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4, an aggressive variation of the Giuoco Piano. It is named after the Welsh mariner William Davies Evans, who introduced the opening to high-level play in the game Evans-McDonnell (London 1826).