Bishop's opening - del Rio variation
1. e4 e5 2. Bc4 Bc5 3. c3 Qg5
White pushes the king's pawn to e4. Black plays the king's pawn to e5. White develops the light-squared bishop to c4.
Black develops the dark-squared bishop to c5. White moves the c-pawn to c3. Black moves the queen to g5.