The Ruy Lopez Revisited - Ivan Sokolov

The Ruy Lopez Revisited contains, among MANY other things, in-depth but highly accessible analysis of the Jaenisch Gambit: 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5. Vassily Ivanchuk played this gambit successfully against world champion Viswanathan Anand in the third round of the 4th Grand Slam Masters Final, held in Sao Paulo, in September 2011.