The Open Spanish is one of Black's most direct methods of fighting
against the Ruy Lopez. Instead of subjecting himself to the so-called
"Spanish torture" of the Closed Ruy Lopez, Black boldly captures the
e4-pawn and provokes an early confrontation.Grandmaster Repertoire 13
The Open Spanish provides a complete repertoire for Black after 1.e4 e5
2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6, based on the Open Variation which occurs
after 5.0 0 Nxe4. Black's system is built on the principles of fast and
active development, and fighting for the initiative whenever the
opportunity arises."