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Subject: Re: What is the correct evaluation of this position?

Author: Dann Corbit

Date: 13:03:55 04/05/00

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On April 05, 2000 at 12:59:30, Mark Ryan wrote:

>Leko (2670) - Beliavsky (2690), Madrid 1998
>
>[D]3q1kr1/3n1p2/2p3p1/p2pPB2/3P4/2P1K1Q1/Pr3P2/6RR b - -
>
>Leko:  "Thanks to my good structure and the light-squared bishop my king is safe
>in the centre, whereas the black king has nowhere to go."  Beliavsky played
>29...Nb6, after which Leko says White has "the upper hand".  However, after 5
>minutes of analysis each, before and after 29...Nb6, the position is evaluated
>as equal by my aging programs, Fritz 5.32, Comet B02, Doctor 3.0, and Crafty
>16.6 (I really should upgrade these old war horses); Hiarcs 7.32 gives White a
>slight advantage.  [Leko won the game six moves later.]

CAP record:
3q1kr1/3n1p2/2p3p1/p2pPB2/3P4/2P1K1Q1/Pr3P2/6RR b - - acd 12; acn 129329667; acs
1000; ce -25; pv Nb6 Bd3 Rxa2 Rh7 Qe7 Rb1 Nd7 Rb7 c5 Bb5 cxd4+ cxd4 Qa3+ Bd3;

Here is the game in question:

[Event "7th Torneo Magistral"]
[Site "Madrid"]
[Date "1998-??-??"]
[Round "6"]
[White "P. Leko"]
[Black "A. Beliavsky"]
[Result "1-0"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical (two knights) system"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be3 c6 6. Qd2 b5 7. Bd3 Bg4 8.
e5 b4 9. Ne4 Nxe4 10. Bxe4 d5 11. Bd3 Bxf3 12. gxf3 a5 13. h4 Nd7 14. h5
Qb6 15. c4 bxc3 16. bxc3 e6 17. Rb1 Qc7 18. Bh6 Bf8 19. Bg5 Rg8 20. hxg6
hxg6 21. Ke2 Be7 22. Bxe7 Kxe7 23. Qg5+ Ke8 24. f4 Qd8 25. Qg3 Kf8 26. Rbg1
Rb8 27. f5 Rb2+ 28. Ke3 exf5 29. Bxf5 Nb6 30. Bd3 Nc4+ 31. Bxc4 dxc4 32.
Qf4 Qe7 33. Rb1 Qa3 34. Kf3 g5 35. Qc1 1-0


I think 33. Rb1 is the master stroke.  From there forward it is curtains.




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