Philidor - Hanham - Schlechter variation
1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Nc3
White plays the king's pawn to e4. Black advances the king's pawn to e5. White develops the knight to f3.
Black plays the queen's pawn to d6. White moves the queen's pawn to d4. Black develops the knight to d7.
White develops the light-squared bishop to c4. Black advances the c-pawn to c6. White moves the knight to c3.