- 2. Nf3
- 2. Nc3
- 2. c3
- 2. f4
- 2. d4
- 2. Ne2
- 2. g3
- 2. c4
- 2. d3
- 2. e5
- 2. Na3
- 2. Qh5
- 2. a4
- 2. a3
- 2. b3
- 2. Bc4
- 2. b4
If you are facing the Sicilian Defence, what second move you would recommend?


Suggestion can be found in:
My First Chess Opening Repertoire for White
https://www.newinchess.com/media/wysiwyg/product_pdf/9033.pdf
https://chessbookreviews.wordpress.com/tag/vincent-moret/
Opening Repertoire 1 e4
https://www.newinchess.com/media/wysiwyg/product_pdf/7819.pdf
A Simple Chess Opening Repertoire for White
http://www.gambitbooks.com/pdfs/A_Simple_Chess_Opening_Repertoire_for_White.pdf
https://chessbookreviews.wordpress.com/2018/04/01/opening-lines/
http://www.jeremysilman.com/shop/pc/A-Simple-Chess-Opening-Repertoire-for-White-76p3916.htm
"... There is no doubt in my mind that if you really want to test the Sicilian then you have to play the main lines of the Open Sicilian. The problem is that there are just so many of them ... and keeping up with developments in all of them is a substantial task. ... as you become older, with other demands on your time (family, job, etc.) then it becomes more and more difficult to keep up with everything. At this stage it may make sense to reduce your theoretical overhead by adopting one of the 'lesser' lines against the Sicilian: 2 c3, or the Closed Sicilian, or lines with Bb5. ..." - GM John Nunn in part of a 2005 book where he discussed a 1994 game in which he had played 2 c3.
Agreed. If Black doesn't want the center, we'll just 'borrow' it for 'a little while'.

2. Nf3. Even if you want to deviate from the open Sicilian, it is much better to do it on move 3, after black shows some more information about his preferred setup.
I strongly recommend playing 2.c3. This gives good winning chances without the awesome amount of theory needed to play 2.Nf3. It also has the practical advantage of annoying opponents who are booked up on the Najdorf, Dragon, Sveshnikov, etc
2. Nf3. Even if you want to deviate from the open Sicilian, it is much better to do it on move 3, after black shows some more information about his preferred setup.
Advocated by Opening Repertoire 1 e4.
https://www.newinchess.com/media/wysiwyg/product_pdf/7819.pdf
I strongly recommend playing 2.c3. This gives good winning chances without the awesome amount of theory needed to play 2.Nf3. ...
Advocated by A Simple Chess Opening Repertoire for White.
http://www.gambitbooks.com/pdfs/A_Simple_Chess_Opening_Repertoire_for_White.pdf
https://chessbookreviews.wordpress.com/2018/04/01/opening-lines/
http://www.jeremysilman.com/shop/pc/A-Simple-Chess-Opening-Repertoire-for-White-76p3916.htm

2. Nf3 followed by 3. d4 is the way to put the Sicilian to the test.
Other moves are for Weakhearted.

2. Nf3.
Even if you want to deviate from the open Sicilian, it is much better to do it on move 3 . . .
I agree
. . . do it on move 3 after black shows some more information about his preferred setup.
meh, I don't know that extra info has much to do with it.

"... There is no doubt in my mind that if you really want to test the Sicilian then you have to play the main lines of the Open Sicilian. The problem is that there are just so many of them ... and keeping up with developments in all of them is a substantial task. ... as you become older, with other demands on your time (family, job, etc.) then it becomes more and more difficult to keep up with everything. At this stage it may make sense to reduce your theoretical overhead by adopting one of the 'lesser' lines against the Sicilian: 2 c3, or the Closed Sicilian, or lines with Bb5. ..." - GM John Nunn in part of a 2005 book where he discussed a 1994 game in which he had played 2 c3.
Stuff like this is just so silly IMO.
Who does he think he's writing to? No one who buys his books needs to worry about how best to test the Sicilian. It makes no difference to the practical play of amateurs if you play 3.d4 and go for mainlines or not.

Ok, but at worst 2.Nc3 is an equal position.
Plus it usually leads to closed maneuvering games with 32 pieces on the board.
In other words the result will have nothing to do with the opening.