Four knights - Alatortsev variation
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Qe7 7. Ne2 d5
White plays 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 moves the knight to c3. Black jumps the knight to f6.
White develops the light-squared bishop to b5. Black develops the dark-squared bishop to b4. White castles kingside.
Black castles kingside. White plays the queen's pawn to d3. Black deploys the queen to e7.
White jumps the knight to e2. Black pushes the queen's pawn to d5.