opening - Why does 6.Bg5 prevent 6e5 in the Sicilian Najdorf

In Gufeld's book, after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5!, [FEN ""] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5! he writes: "In this way White solves three

History Archives - Page 3 of 21 - British Chess News

Back To Basics Openings PDF, PDF, Chess Openings

History Archives - Page 3 of 21 - British Chess News

S. Bücker & C. Galofre - Chess Cafe - Over the Horizons - 1-74, PDF, Chess Openings

Sicilian Defense, Najdorf w/ 6.Bg5 - Standard chess #21

Back To Basics Openings PDF, PDF, Chess Openings

500 Sicilian Miniatures 1987 - Bill Wall, PDF, Traditional Games

Unorthodox Openings Newsletter6, PDF, Chess Openings

Should I play e6 or e5 in the Najdorf Sicilian? I heard that both are playable in most cases but there are some exceptions. - Quora

Should I play e6 or e5 in the Najdorf Sicilian? I heard that both are playable in most cases but there are some exceptions. - Quora

Sicilian-Najdorf: What is the point in 5. a6? : r/chess

Joe Gallagher - Winning With The Kings Gambit PDF, PDF, Chess Openings

opening - Why does 6.Bg5 prevent 6e5 in the Sicilian Najdorf? - Chess Stack Exchange

A deep dive into the Bg5 line in the Najdorf Sicilian

Should I play e6 or e5 in the Najdorf Sicilian? I heard that both are playable in most cases but there are some exceptions. - Quora