For 10 points, name this extremely common chess opening, characterized by the sequence e4-e5, Nf3-Nc6 ("knight-f-"), Bb5bishop-b-five"), which is named for a Spanish priest.
Emanuel Lasker famously played this opening to defeat a surprised José Raul Capablanca during a 1914 tournament in St. Petersburg. This was the most common opening used by Magnus Carlsen to defend the 2014 World Chess Championship against Viswanathan Anand, who met it each time by playing a variation in which Black plays Nf6 ("knight-f-six") on the third move. A different defense against this opening involves fianchettoing the Black bishop to b7 after the White bishop retreats to b3, and was developed by theoreticians in the Russian city of Arkhangelsk. This variation of the open game is most commonly defended against with a move named for Paul Morphy, in which Black attacks the White bishop by pushing a pawn to (*) a6, usually forcing White to either capture Black's knight on c3 or retreat to a4. For 10 points, name this extremely common chess opening, characterized by the sequence e4-e5, Nf3-Nc6 ("knight-f-"), Bb5bishop-b-five"), which is named for a Spanish priest. 
Emanuel Lasker famously played this opening to defeat a surprised José Raul Capablanca during a 1914 tournament in St. Petersburg.
Ruy Lopez [accept the Spanish Game or the Spanish Opening; also accept the Berlin Defence      and the Arkhangelsk or Archangel Defence, as well as Ruy Lopez, exchange variation; prompt on more     general answers such as "e4," "e4-e5," or the "open game"] 