Ruy Lopez - exchange - Bronstein variation
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Qd6
White plays 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 c6. White develops the light-squared bishop to b5. Black moves the a-pawn to a6.
White captures with the light-squared bishop on c6. Black captures on c6 with the queen's pawn. White castles kingside.
Black places the queen to d6.