This is a comprehensive opening repertoire based on the Sicilian Najdorf that is endorsed and approved by GM Rafael Leitão. The basic ideas of the Najdorf are explained, and all critical lines are covered including: 6.Bg5, 6.Bc4, 6.Be3, 6.Be2, and some sidelines like 6.f4, 6.g3, 6.h3, and 6.a4. GM Rafael also sent me some analysis to correct some of his suggestions on 6.Bg5, as some of the analysis he originally suggested was refuted. The ideas are similar in most lines so even if you can't remember everything you can still do well in the Najdorf. I used an opening database, my experience, stockfish (to double check), the analysis GM Rafael sent me, and GM Rafael Leitão's video series "Crush White with the Sicilian Najdorf" (mostly the last one).
