Follow Opening Principles.
In the Sicilian, which move to play if white doesn't play d4 after c5?
However, my opponents never seem to play d4. What should I do if they do not? What move would be best? Just continue to develop, e.g., Nf6? Or is there a better way of pushing some lead if they should elect not to play d4?
Thanks in advance.
Continue to develop your kingside pieces, with the goal of castling.
Possibly of interest:
Starting Out: The Sicilian, 2nd Edition
https://web.archive.org/web/20140627122350/http://www.chesscafe.com/text/hansen123.pdf
Anti-Sicilians: Move by Move
Sveshnikov vs. the Anti-Sicilians
https://www.newinchess.com/media/wysiwyg/product_pdf/9003.pdf
http://www.jeremysilman.com/shop/pc/Sveshnikov-vs-The-Anti-Sicilians-76p3890.htm
Grandmaster Repertoire 6A - Beating the Anti-Sicilians by Vassilios Kotronias
http://www.qualitychess.co.uk/ebooks/BeatingtheAnti-Sicilians-excerpt.pdf
I ask this because I have been playing the Najdorf, despite being so bad at chess right now, because it's fun for me. I study a lot of the Sicilian games of professional players, and d4 is often played after e4, c5, Nf3, d6.
And this is what I've studied. So, I understand that it is generally an accepted trade of pawns. However, my opponents never seem to play d4. What should I do if they do not? What move would be best? Just continue to develop, e.g., Nf6? Or is there a better way of pushing some lead if they should elect not to play d4?
Thanks in advance.