Author: Paulo Soares
Date: 21:48:15 04/05/00
Go up one level in this thread
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.]
>Cheers,
>Mark
I think 29 ...Qe7 are better than 29 ...Nb6.
But even if black play 29 ...Nb6, after 30.Bd3, there is at least 5 moves
that will demand a long analysis from programs:
1. 30 ...Ke8
2. 30 ...c5
3. 30 ...Qe7
4. 30 ...Qc7
5. 30 ...Nc4+
I think that this is the reason of the long time that the programs take to find
a good evaluation.
Below some analyses, all favorable to white, but that show as that
position it's complex.
[Event "Madrid"]
[Site "Madrid"]
[Date "1998.??.??"]
[Round "6"]
[White "P. Leko"]
[Black "?"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "69"]
[EventDate "1998.??.??"]
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 (29... Qe7 {!?}) 30. Bd3 Nc4+ (30... c5 31. e6 cxd4+ 32.
cxd4 Qf6 33. exf7 Qxf7 34. Rb1 Rxb1 35. Rxb1 Nd7) (30... Qe7 31. Rb1 Na4 32.
Rxb2 Nxb2 33. Rh7 Nxd3 34. Kxd3 Qe6 35. Qg5) (30... Qc7 31. Rh7 c5 32. Qg5
cxd4+ 33. cxd4 Ke8 34. e6 Qe7 35. Qxe7+ Kxe7 36. exf7 Rf8 37. Rxg6) (30... Ke8
31. Rb1 Rxb1 32. Rxb1 Nd7 33. Rb7) 31. Bxc4 dxc4 32. Qf4 Qe7 33. Rb1 Qa3 34.
Kf3 g5 35. Qc1 1-0
Paulo Soares, from Brazil
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