Evans gambit declined - Cordel variation
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. Bb2
White advances the king's pawn to e4. Black pushes 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 plays the b-pawn to b4. Black places the dark-squared bishop to b6. White deploys the dark-squared bishop to b2.