Four knights - Svenonius variation
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5
White advances 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 jumps the knight to c3. Black moves 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 pushes the queen's pawn to d3. Black captures with the dark-squared bishop on c3.
White captures on c3 with the b-pawn. Black moves the queen's pawn to d5.