Evans gambit declined - Showalter variation
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 a6 6. Nc3
White advances the king's pawn to e4. Black moves the king's pawn to e5. White develops the knight to f3.
Black develops the knight to c6. White develops the light-squared bishop to c4. Black develops the dark-squared bishop to c5.
White pushes the b-pawn to b4. Black deploys the dark-squared bishop to b6. White pushes the a-pawn to a4.
Black pushes the a-pawn to a6. White moves the knight to c3.