Minggu, 11 Januari 2009

King's indian defend ;normal variation,king's knight variation

1.d4 It was quite important for white to draw i feel 1...Nf6 2.c4 e6 3.g3 Lets see if black can do better and equalise 3...d5 4.Bg2 dxc4 5.Qa4+ Nbd7
6.Qxc4 a6 7.Qd3 Anticipating b5 [7.a4 b5 (Or 7...e5 would unnecessarily
allow black to complicate at an early stage) 8.Qc2 Rb8] 7...c5
8.dxc5 Bxc5 9.Nf3 [9.Nc3 Qb6!] 9...0-0 10.0-0 Qe7 [10...b5 11.Nd4

Ne5 12.Qc2!; 10...b5 11.Nd4 Nd5 12.Nc3 Bb7 13.Nxd5+/=] 11.Nc3 b6
Still theory but rare. Black avoids any possible weakening of the
queen side with the more ambitious 11...b5 [11...b5 12.Ng5 Bb7 Was
if you
will forgive the pun - wants to play Nxh7 13.Nxh7 Bxg2 14.Nxf6+ Qxf6
15.Kxg2 Ne5 16.Qe4 Nc4 When Black has some compensation; 11...b5
12.Ng5 Ne5 Looks better 13.Qc2 Bb7 and Black is comfortably placed;
11...b5 12.Ne4 looks more natural 12...Nxe4 13.Qxe4 with similar play to
the game] 12.Ne4 [12.Ng5 Ne5 13.Qb1 Bb7 14.Nce4 Nxe4 15.Bxe4 Ng6
16.Bxb7 Qxb7 17.Qe4 Yielded White less than nothing in Szekely - Salov
Kotov Mem Leningrad1984] 12...Nxe4 13.Qxe4 Nf6!

14.Qh4 When you face a machine that sees nine moves ahead its best to
keep it simple [14.Qxa8 wins two rooks for a queen but Black gets lots of
activity for example 14...Bb7 15.Qxf8+ Kxf8 and the natural 16.Bf4 runs
into a) 16.Bd2 e5 17.Bc3 (17.Rad1 e4 18.Ne1 e3) 17...Ne4 18.Rac1 Nxc3
19.Rxc3 e4; b) 16.a3!? e5 17.b4 Bd4 18.Ra2 Ne4; 16...e5! 17.Nxe5 (After
17.Bxe5 Bxf3 18.Bxf6 Qxe2 19.Bxf3 Qxf3 20.Bc3 h5 Threatening g5 and
h4-h3 and if 21.h4 Qxg3+) 17...Bxg2 18.Kxg2 g5 wins a piece] 14...Bb7
15.Bg5 Rfd8! 16.Bxf6 Qxf6 17.Qxf6 [Not 17.Ng5 Bxg2 18.Qxh7+ Kf8
19.Qh5 g6 20.Qh4 Qd4 21.Qxd4 Bxd4 22.Kxg2 Bxb2 23.Rab1 Rd2 Black is
better. White naturally prefers the endgame] 17...gxf6 18.Rfd1 Kf8
19.Ne1! Black must be deprived of the bishop pair 19...Bxg2 20.Kxg

20...f5! Fitting in with a dark squared bishop. At some point White might
consider g3-g4 fixing f6 21.Rxd8+ Rxd8 22.Nd3 Bd4 with the idea of
e5-e4 or Rc8-c2 23.Rc1 e5 24.Rc2 [24.e3? Bxe3 25.fxe3 Rxd3] 24...Rd5
25.Nb4 Rb5 26.Nxa6 The position becomes further simplified. White
has a faint hope that he can exploit the weakened kingside pawns but they
are easily defended 26...Rxb2 [26...Bxb2 27.Nc7 Rc5 28.Rxc5 bxc5 Would
give White some chances because of the a pawn; Also 26...Bxb2 27.Nc7
Rc5 28.Rxb2 Rxc7 29.Rxb6 Rc2 30.e3 Rxa2 31.Rf6 would be perfect for
white a pawn up in a rook and pawn ending] 27.Rxb2 Bxb2 28.Nb 4
Kg7 [28...Ke8 29.Nd5+/= x h7] 29.Nd5 Bd4 30.a4 Bc5 31.h3 black cannot really improve its position white may want to play g4 at
some point but this is something of a waiting move to see if black will
play some injudicious moves 31...f6 I think most players would consider
Kg6 32.f3 If allowed white would like to play e4 and g4 and fix the
black pawns but black sees this coming 32...Kg6 [for example
32...Kf7 33.e4 fxe4 34.fxe4 Ke6? 35.g4! followed by a king march to the
queenside would give white good chances to win] 33.e4 [33.Kf1!?]
33...h5 [33...fxe4 34.fxe4 f5 35.Kf3 Should also lead to a draw] 34.g4
[The king march to the queenside is comfortably met by 34.Kf1 fxe4
35.fxe4 f5 36.exf5+ Kxf5] 34...hxg4 35.hxg4 fxe4 36.fxe4 Kg5 37.Kf3
Kg6 white has been in control throughout but never threatened to win
although I would wager even a strong human player would have to sweat
as Black here. 38.Ke2 Kg5 39.Kd3 [39.Kf3 Kg6=] 39...Bg1 40.Kc4 Bf2!
Accurate play is still required [40...Kxg4? 41.Nxf6+ Kf4 42.Kd5 Bf2 43.Nd7
Bd4 44.Nf8!] 41.Kb5 Kxg4

42.Nxf6+ [42.Nxb6 Bxb6 43.Kxb6 f5 44.exf5 Kxf5 45.a5 e4 46.a6 e3
47.a7 e2 48.a8Q e1Q 49.Qf8+ Kg6=] 42...Kf3 43.Kc6 Bh4 The point of
Bf2 44.Nd7 Kxe4 45.Kxb6 Bf2+ 46.Kc6 Be1 47.Nxe5 1/2-1/2

Sicillian defend (closed variation)

As we know in chess there are many types and kinds of opening.
let us under this same study the theory of sicillian defend (closed variation).
this party is the author's first game in learning by doing on the site chess.com
please give critiques and suggestions that build

1. e4 c5 2. Nc3 Nc6 3. Nge2 a6 4. g3 e6 5. Bg2 b5 6. O-O Bb7 7. d4 cxd4 8. Nxd4 Rc8 9. Re1 d6 10. a4 b4 11. Nd5 Nf6 12. Bg5 Be7 13. Nxc6 Bxc6 14. Nxb4 Bb7 15. c3 a5 16. Nc2 Qb6 17. Nd4 O-O 18. Qd2 Rfd8 19. b4 Rd7 20. b5 Rdc7 21. Re3 h6 22. Bxf6 Bxf6 23. Ne2 Bg5 24. f4 Bf6 25. e5 dxe5 26. Bxb7 Qxb7 27. fxe5 Bg5 28. Nf4 Qb6 29. Kg2 Rc4 30. Rd3 Qb7+ 31. Kh3 Qe4 32. Rd4 Qf5+ 33. Kg2 Rxc3 34. Ra2 Kh7 35. Rd7 Rc24.Nb5 0-1