two knights - Max Lange attack - Steinitz variation
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5 Ng4
White moves 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 moves the knight to f6.
White moves the queen's pawn to d4. Black captures on d4 with the king's pawn. White castles kingside.
Black develops the dark-squared bishop to c5. White plays the king's pawn to e5. Black jumps the knight to g4.