Evans gambit declined - Lange variation
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. b5 Na5 6. Nxe5 Nh6
White pushes the king's pawn to e4. Black plays 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 moves the b-pawn to b4. Black moves the dark-squared bishop to b6. White pushes the b-pawn to b5.
Black jumps the knight to a5. White captures with the knight on e5. Black transfers the knight to h6.