Black repertoire against the Ruy Lopez based on the Modern Steinitz variation 1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 d6. From the back cover: The Modern Steinitz may lead to razor-sharp gambits, such as the Siesta Variation, where just one slip by either player could prove to be fatal. But perhaps the main attraction of the Modern Steinitz is its flexibility, as Black can also choose to play in a more positional and solid manner. Further information about the book is available at everymanchess.com.