The Najdorf Sicilian is one of the most dangerous arsenals in chess. Although 6. Bg5 is the most popular response, Bobby Fischer's move 6. Bc4 remains effective, with 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4. This often transposes into the Sozin Defense. 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 This edition is updated in April 2012 and provides complete analysis and the most recent games in this important line. ChessBase says, "International Master Ali Mortazavi is a former chess player who made his fortune as a stock trader." Chess Master Eric Schiller is an accomplished international player and former state champion in three states. He is the author of over 150 books including First Chess Openings and the Encyclopedia of Chess wisdom. A chess teacher and trainer for 40 years, he has been coach of the U.S.A. Delegation at the World Youth Championships and arbiter of the Chess Olympiad, and U.S. and World Championships. His website is www.ericschiller.com and is frequently on facebook.