[Event "The Sicilian Najdorf: The Fischer-Sozin Attack: 6.Bc4"]
[Site "https://lichess.org/study/JM9AjCVp/xRRezSg9"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/LeninPerez"]
[ECO "B87"]
[Opening "Sicilian Defense: Sozin Attack, Flank Variation"]
[UTCDate "2021.11.08"]
[UTCTime "15:51:41"]
[Variant "Standard"]

{ Let's look at Fischer's favorite weapon against the Sicilian Najdorf: } 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 { The Fischer-Sozin Attack was my first weapon against the Najdorf. I remeber when I was u10 and u12, I won many games with this variation. The plan was easy: I placed my bishop on b3, play f4-f5 forcing my opponent to play e5 and after that I would get a nice control of the d5 square. I won many games like this, but if Black knows how to play, things are not so easy for White! The Fischer-Sozin attack is an extremely dangerous weapon, this being Bobby Fischer's favorite weapon to combat the Sicilian Najdorf.
It was patented by Sozin, and was recognized worldwide thanks to the enormous contribution of Fischer in the development of the theory.
The bishop on c4 dominates the a2-g8 diagonal, and points dangerously at f7. } 6... e6 { White's bishop on c4 has an excellent diagonal, but after e6, this one, which previously pointed to f7, now hits a wall!
Furthermore, Black gains control over the d5 square. } ( 6... e5 { Playing e5 is purely Najdorf, but sometimes this is not so good. It is remarkable (red dots) how e5 greatly weakens the f5 and d5 squares, and also how the bishop on c4 comes to life on the diagonal (green arrow) pointing to f7. [%csl Rd5,Rf5,Gc4][%cal Gc4f7] } 7. Nf5 { As in chapter 5, the white knight on f5 is very annoying. White's bishop is dangerously targeting f7 on an excellent diagonal, and the f5 and d5 squares are extremely well controlled. } ) 7. Bb3 b5 { Black accelerates the attack on the queenside looking for b4 nearby. } ( 7... Nbd7 { This line is also well known, with ideas of taking the knight to c5 and changing it for the bishop on b3 [%csl Gc5,Rb3][%cal Gd7c5,Rc5b3] } 8. f4 Nc5 { I've played this variation many times during my chess career and Black is doing fine. One common line is } 9. f5 ( 9. e5 dxe5 10. fxe5 Nfd7 11. Bf4 b5 { Followed by Bb7, Black is doing ok. } ) 9... Be7 $1 ( 9... e5 $2 { This is what White wants and this is what I was achieving in my games. } 10. Nde2 Be7 11. Ng3 O-O 12. Bg5 { Followed by Bxf6, White takes under control the d5 square and White is better. } ) 10. Qf3 Bd7 { The position is balanced. It is very importan to realize that Black keeps the tension and doesn't play the move e5. } ) 8. O-O Be7 9. Qf3 Qb6 { In my opinion, the best continuation of Black. } ( 9... Qc7 { It is also very common } 10. Qg3 { White will seek to attack on the kingside } 10... O-O 11. Bh6 Ne8 12. Rad1 b4 13. Na4 Bd7 { The position is very even. } ) 10. Be3 Qb7 $1 { This move could be a bit mysterious, but it has a point. The idea is to get away of the e3 bishop, but at the same time Black avoids all kind of e5 moves. Moreover, the bishop on c8 will protect the important e6 square. } 11. Qg3 b4 { Both sides attack from both flanks! } 12. Na4 { Faced with any other withdrawal by the white knight, Black could continue with Qxe4. } ( 12. Qxg7 { This is not an intermediate move, as Black can continue with } 12... Rg8 13. Qh6 bxc3 { Black wins the white knight. } ) 12... Nbd7 { Black has to keep developing his pieces, and this is the best way to do it.
Castling now (or earlier) allows White to take the initiative with Bh6. } ( 12... Qxe4 { Black would not win a pawn, because White continues with } 13. Nb6 Nbd7 14. Nxa8 Qxa8 { And clearly White is won. } ) ( 12... O-O { This would be possible as well, but after } 13. Bh6 { Black would have to play defensively with Ne8. } ) 13. f3 O-O { The opportune moment to castle.
Black manages to call!
Sorry if between the movements we add many other options inside, rather, you must be happy for all the content within each chapter! } *