1. e4 c5
2. Nf3 e6
3. d4 cxd4
4. Nxd4 Nc6
5. Nc3 Qc7
6. g3 a6
7. Bg2 d6
8. O-O Bd7
9. Re1 Be7
10. Nxc6 Bxc6
11. Qg4 h5
12. Qe2 h4
13. a4 hxg3
14. hxg3 Kf8
15. a5 Rc8
16. Be3 Nf6
17. Bb6 Qd7
18. f4
[/color]This little change is not mentioned in the book in a direct way, in the specific move order. This being a brand new variation for me to learn as Black I made the following mistake--[color=#006600] 18... Bd8 ?!
Trying to challenge the bishop on b6 and at the sametime angling for Bc7 to contest white's e5 push, but...
19. Bf2 !
and my bishop was left looking silly and Black was severely limited in counterplay in addition to space. After that, I was hurting.
So I tried to analyze how to deal with this other option not dealt with in the Delchev/Semkov book. I sought for the same idea for white (the plan of f4 and Be3, Rad1) in the book and I found it. It was to have ...g6 for Black, then ...Kg7, ...Qg8, ...Qh7, and ...e5. So I came up with the following during my study--
18... g6
19. Rad1 Qe8
20. Bd4 e5
21. Be3 Kg7
22. Rf1 Qg8
With the idea of ...Qh7
and now we are back in the book, and with the same idea and plan for Black advocated by Delchev/Semkov made possible. In the book, you can find the above information on pages 150-151 and even more specific, on page 155, game 44, the notes to White's 17th move.
Any comments from those of you who own the book or from Semkov himself?