Petrov - classical attack - close variation
1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Nf6
White pushes the king's pawn to e4. Black advances the king's pawn to e5. White develops the knight to f3.
Black develops the knight to f6. White captures with the knight on e5. Black plays the queen's pawn to d6.
White moves the knight to f3. Black captures with the knight on e4. White pushes the queen's pawn to d4.
Black transfers the knight to f6.