Sicilian Grand Prix and Closed Sicilian: a black repertoire with analysis

https://lichess.org/study/fYXlK6zq

Owen defense ..b6,..Bb7 with Nc3 white

The main position to analyze is after the moves

1 e4 b6 2 d4 Bb7 3 Nc3 e6 4 Nf3 Bb4 5Bd3 Nf6

Official Website

Owen Defense B00. Nc3,Nf3,Bd3 lines for white , ..b6,..Bb7,e6,Bb4 for Black


Nc3 gives more options to Black versus quick Bd3,Qe2 with c3/Nd2 options

Scandinavian summary lines

I thought I would recap my suggestions to play against the scandinavian First repertoire is centered around 3 Nf3 !? key position to study is here after 6 c4 !



Please note that this can lead to offering the d4 pawn but White gets compensation.


 Second repertoire is centered around the main line 3 Nc3
 and the key position after 6 Bc4 is here :

 

While this is the main line, I suggest alternatives later on to seize the initative

to replay all variations, the link is here
http://view.chessbase.com/cbreader/2018/8/24/Game28093718.html

Sicilian Najdorf Theory: A variation for White !

Key Position (Tabiya) after 7 Nde2!?

This is how we reach the diagram:

1e4 c5 2 Nf3 d6 3 d4 cd4 4Nd4 Nf6 5 Nc3 a6 Najdorf Defense

6Be3 e5 The most principled answer. On 6..e6, White can play 7 Be2,0-0,f4 or 7f3,8Qd2,90-0-0 followed by g4 which are both good plans for White.


7 Nde2!?

Which is GM Nisipeanu's move and we reach the diagram above. This is an interesting weapon against the Popular Najdorf for White.

In the next 2 days, we will look at how to build a repertoire for White in this variation.