Improve Your Chess: Highly Instructive Games - Karjakin-Anand Wijk An Zee 2006

In a model of pre-game computer preparation, Anand plays a major sharp line in the Sicilian Najdorf English Attack. At home, he finds a brilliant improvement over an Informant suggestion with 24..Nc7! But even that does not end the game, as several sharp (also likely prepared) moves follow leaving him with a completely won position. After a few more attempts to defend, Karjakin goes down to an Anand mating attack.