For instance, instead of a3 at the end of that, White can go Rg7, and taking the rook spells disaster because after Black gives up the bishop with Bxg7 fxg7 Rg8, White can sac a knight or bishop on b5 and then crash through on d6. But even if Black doesn't take the rook and just tries to push b4, then Nd5 is very strong. So a3 turns out not to be necessary.
I can't remember as much as I'd like about the 13 ... Nc5 line. But the brief answer is that, partly because lines like the one you gave, the whole 13 ... Nc5 line has been out of fashion for a decade or so, largely in favor of the unintuitive 13 ... 0-0, an idea of Ju Wenjun's, which she and others have shown to be surprisingly not suicidal.
Anybody home? I joined a match between us and "a free group" several weeks ago. I am quite interested in the Najdorf and looked forward to the match. Why no one else?
I'm new to the Najdorf (I'm switching over from the Sicilian Taimanov). I've been studying, "Play the Najdorf Sicilian" by Rizzitano, James. If anyone has any other book suggestions, I would appreciate it. (I'm surprised there is no "Move by Move" series book on the Najdorf.)
Right now, it's a bit slow - I'm in the process of a lot of school work and trying to finish up a paper for publication.... sigh. Things will be picking up soon though! Maybe you can have a match with members from the group? :)