The Najdorf Variation of the Sicilian Defence continues to be extremely popular, both with top grandmasters and club players. And for very good reasons: it is a flexible, ambitious, wonderfully rich and diverse system, offering one of the best ways for Black to play for a win. Both Bobby Fischer and Garry Kasparov achieved great successes with their beloved Najdorf. In this book, Grandmaster Zaven Andriasyan presents a groundbreaking attacking repertoire for Black. He analyses a large number of recent games from top players such as Topalov, Gelfand and Grischuk, explaining the various tactical and positional themes. Revisiting all major Najdorf battlegrounds Andriasyan radically overturns chess opening theory that was developed during decades. He manages to find an astonishing number of improvements: all in all he presents more than two hundred novelties. A must-read for Najdorf lovers!