hitman84: Sicilian Scheveningen Variation (B82)
(Notes based on Kasparov’s annotations in the Informant CD)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6
Kasparov is ready to play the Sicilian Najdorf, his favourite variation.
But not in this line...
Transposing to Scheveningen Variation. 6...e5 would have led to the Najdorf.
7.Bd3 Nbd7 8.0–0 Qb6?!
With the benefit of hindsight one can call this move an error.
8...Be7 is safer.
9.Be3 Qxb2 10.Ndb5!
Not 10.Qd2 Ng4.
10...axb5 11.Nxb5 Ra5
This is Kasparov's improvement.
11...Qb4?12.Nc7+ seen in De Firmian- Gheorghiu, Lone Pine 1980 is bad for Black.
12...Qxa2? loses to 13.Nc3 Qa3 14.Rb3 .
13.Rxb2 Rxb2 14.Qa1 Rb6
Forced. If 14…Rb4?? 15.Qc3! wins-NSH
Analysis Diagram: after 15.Qc3
15.Bxb6 Nxb6 16.Qc3!Be7 17.Rb1 Nfd7! 18.Qxg7 Bf6 19.Qh6 Ke7?
Kasparov claims that Black should first play 19...Rg8 preventing g4 advance by White.
On 20.e5 he gives 20...dxe5 21.Rxb6 e4.
Analysis Diagram: after 21...e4
But after 22.Rxe6+ fxe6 23. Bxe4 White is slightly better.
The bishop vacates the d-file for the heavy pieces and also prepares the advance e5.But as Kasparov points out, White misses a terrific attack with 20.g4 !! 20...Rg8 (20...Bd4+? 21.Kf1 Nc5 22.Rb4 ; 20...Nc5 ? 21.e5 dxe5 22.g5 ) 21.g5 Bg7 22.Qh4 (22.Qxh7?? 22...Bd4+ threatening… Rh8–+) 22...e5 ! 23.Kh1 exf4.
Now the tempting 24.g6+ is surprisingly unclear. 24...Bf6 25.gxh7 Rh8 26.Qh5 Be5! 27.Qg5+ Nf6! Isn't Black losing a piece?
Analysis Diagram: after 27...Nf6
28.Rxb6 Rxh7 (threatening ...f3 and ...Rxh2+.) 29.Rb5! Rh5(Now 29...f3? fails to 30.Rxe5+ dxe5 31.Qxe5+ ) 30.Rxe5+ dxe5 31.Qg1 Bd7! 32.Qc5+ Ke8 33.Bb5 Bxb5 34.Qxb5+ Kf8 35.Qxb7 Kg7.
So White should play 24.e5! 24...dxe5 (24...Bxe5 25.g6+ Ke8 26.gxh7 Rh8 27.Rb5!! 27...Na4 28.Rxe5+ dxe5 29.Qg5 ) 25.g6+ Bf6 26.gxh7 Rh8 27.Qh5 Nd5 28.Bc4 Ne3 29.Qxf7+ Kd6 30.Rb6+! .
Did Anand overlook 20.g4 ? I think he rejected it in his calculations because he didn’t want to expose his kingside.-NSH
Mixing up the move order.
Black should have played 20...e5! 21.Rf1 Rg8 22.fxe5 Bxe5 23.Qxh7 Rg7 24.Qh4+ Nf6 and he will have the upper hand.
Now it is one move too late. The right move is 21...Rg4! 22.e5! 22...dxe5 23.Qh3 Rxf4 24.Qa3+ Ke8 (24...Kd8 ? 25.Qf8+ Kc7 26.Qd6+ Kd8 27.Qxb6+ ) 25.Qc5 Bd8 26.a4 e4 27.Rf1!Rg4! 28.h4! .f5 29.a5 Kf7 30.Bxd7 Bxd7 31.axb6 Be7 32.Qe5 Rxh4 with an unclear position.
Kasparov doesn't comment on this move. It threatens 23.Qd2. In all probability he saw the necessity of...Rd8 and prepared for it with the following move.
Missing the other threat.
Black should have played 22...Rd8 first, and then only ...Nc5 with better chances of survival.
After 23...Kxd6? White can win as he pleases.
24.Qxf6+ Kc7 25.Qxe5+ or 25.Qxf7+ .
24.Qxh7 Nxe4 25.Rxb6 Rd8
Not 25...Be3+? 26.Kf1 Rg4 27.f6+ Kf8 28.Ke2! (Kasparov).
If 28...Bxb6 29.Qh8+ Rg8 30.Qh6+ Rg7 31.Qxg7# -NSH
26.Bd3 Be3+ 27.Kf1 Bxb6 28.Bxe4 Rd4 29.c3!
White has the last laugh. 29...Rxe4?? loses immediately to 30.f6+ - NSH