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Subject: Re: Sac by hydra

Author: Rob Basham

Date: 10:15:50 09/01/04

Go up one level in this thread


On August 31, 2004 at 22:28:28, James T. Walker wrote:

>On August 31, 2004 at 16:05:50, Vincent Lejeune wrote:
>
>>
>>Hydra-Chimera on the playchess server, played 23.Bg6! in 30 sec and demolished
>>Shredder, how many time for your engine ?
>>
>>[d]2qr1k2/1b2bpp1/pp1rp2p/3nN3/1P6/P1PB1P2/2Q2BPP/3RR1K1 w - - 0 23
>>
>>[Event "10m + 5s, rated"]
>>[Site "?"]
>>[Date "2004.08.31"]
>>[Round "?"]
>>[White "Ares01, Hydra/Chimera-1.12aC"]
>>[Black "Jbunch, Shredder 8"]
>>[Result "1-0"]
>>[WhiteElo "2734"]
>>[BlackElo "2596"]
>>[PlyCount "125"]
>>[EventDate "2004.08.31"]
>>
>>1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} d5 {
>>[%emt 0:00:00]} 3. Nd2 {[%emt 0:00:00]} dxe4 {[%emt 0:00:00]} 4. Nxe4 {
>>[%emt 0:00:00]} Nd7 {[%emt 0:00:00]} 5. Nf3 {[%emt 0:00:00]} Ngf6 {
>>[%emt 0:00:00]} 6. Bd3 {[%emt 0:00:00]} Be7 {[%emt 0:00:00]} 7. Qe2 {
>>[%emt 0:00:00]} c5 {[%emt 0:00:00]} 8. Nxf6+ {[%emt 0:00:43]} Nxf6 {
>>[%emt 0:00:00]} 9. c3 {[%emt 0:00:27]} O-O {[%eval 50,14] [%emt 0:00:37]} 10.
>>dxc5 {[%emt 0:00:31]} Qc7 {[%eval 61,14] [%emt 0:00:34]} 11. Bg5 {
>>[%emt 0:00:00]} Qxc5 {[%eval 51,13] [%emt 0:00:25]} 12. O-O {[%emt 0:00:01]}
>>Rd8 {[%emt 0:00:00]} 13. Rfe1 {[%emt 0:00:25]} h6 {[%eval 75,13] [%emt 0:00:35]
>>} 14. Bh4 {[%emt 0:00:00]} b6 {[%emt 0:00:00]} 15. Ne5 {[%emt 0:00:18]} Bb7 {
>>[%eval 38,11] [%emt 0:00:08]} 16. Rad1 {[%emt 0:00:15]} Rd6 {
>>[%eval 29,13] [%emt 0:00:22]} 17. Qc2 {[%emt 0:00:37]} Rad8 {
>>[%eval 25,13] [%emt 0:00:26]} 18. a3 {[%emt 0:00:28]} a6 {
>>[%eval 22,12] [%emt 0:00:02]} 19. b4 {[%emt 0:00:18]} Qc7 {
>>[%eval 70,14] [%emt 0:00:44]} 20. Bg3 {[%emt 0:00:00]} Qc8 {
>>[%eval 80,13] [%emt 0:00:18]} 21. f3 {[%emt 0:00:16]} Kf8 {
>>[%eval 38,13] [%emt 0:00:03]} 22. Bf2 {[%emt 0:00:23]} Nd5 {
>>[%eval 48,14] [%emt 0:00:14]} 23. Bg6 {[%emt 0:00:30]} fxg6 {
>>[%eval 7,13] [%emt 0:00:26]} 24. Qxg6 {[%emt 0:00:23]} Kg8 {
>>[%eval 43,15] [%emt 0:00:14]} 25. Qf7+ {[%emt 0:00:08]} Kh7 {
>>[%eval 49,15] [%emt 0:00:15]} 26. c4 {[%emt 0:00:06]} Nxb4 {
>>[%eval 51,14] [%emt 0:00:18]} 27. Rxd6 {[%emt 0:00:15]} Bxd6 {
>>[%eval 68,16] [%emt 0:00:00]} 28. Qg6+ {[%emt 0:00:14]} Kg8 {
>>[%eval 143,15] [%emt 0:00:50]} 29. Nf7 {[%emt 0:00:00]} Kf8 {
>>[%eval 219,13] [%emt 0:00:45]} 30. Nxd8 {[%emt 0:00:20]} Qxd8 {
>>[%eval 239,15] [%emt 0:00:00]} 31. Rxe6 {[%emt 0:00:30]} Bc5 {
>>[%eval 330,13] [%emt 0:00:30]} 32. Bxc5+ {[%emt 0:00:00]} bxc5 {
>>[%eval 330,14] [%emt 0:00:07]} 33. axb4 {[%emt 0:00:06]} Qd4+ {
>>[%eval 355,14] [%emt 0:00:16]} 34. Kf1 {[%emt 0:00:06]} Qxc4+ {
>>[%eval 387,15] [%emt 0:00:15]} 35. Re2 {[%emt 0:00:04]} Kg8 {
>>[%eval 397,15] [%emt 0:00:05]} 36. Qb6 {[%emt 0:00:08]} Bd5 {
>>[%eval 422,14] [%emt 0:00:07]} 37. Qxc5 {[%emt 0:00:09]} Bf7 {
>>[%eval 437,15] [%emt 0:00:10]} 38. Qd6 {[%emt 0:00:15]} Kh7 {
>>[%eval 437,14] [%emt 0:00:03]} 39. Kf2 {[%emt 0:00:14]} Qh4+ {
>>[%eval 435,15] [%emt 0:00:01]} 40. Kg1 {[%emt 0:00:12]} Qc4 {
>>[%eval 466,16] [%emt 0:00:20]} 41. Re7 {[%emt 0:00:08]} Qa2 {
>>[%eval 480,14] [%emt 0:00:33]} 42. h3 {[%emt 0:00:00]} Qb1+ {
>>[%eval 487,14] [%emt 0:00:12]} 43. Kh2 {[%emt 0:00:11]} Qg6 {
>>[%eval 517,16] [%emt 0:00:20]} 44. Qxg6+ {[%emt 0:00:00]} Kxg6 {
>>[%eval 532,18] [%emt 0:00:02]} 45. Kg3 {[%emt 0:00:17]} Bc4 {
>>[%eval 565,19] [%emt 0:00:06]} 46. Kf4 {[%emt 0:00:08]} Kf6 {
>>[%eval 568,18] [%emt 0:00:04]} 47. Rd7 {[%emt 0:00:11]} Bb5 {
>>[%eval 589,18] [%emt 0:00:22]} 48. Rd6+ {[%emt 0:00:23]} Kf7 {
>>[%eval 592,20] [%emt 0:00:00]} 49. Ke5 {[%emt 0:00:14]} Bf1 {
>>[%eval 610,18] [%emt 0:00:18]} 50. g4 {[%emt 0:00:13]} Kg8 {
>>[%eval 635,17] [%emt 0:00:15]} 51. f4 {[%emt 0:00:00]} Bxh3 {
>>[%eval 643,18] [%emt 0:00:17]} 52. Rxa6 {[%emt 0:00:11]} Bxg4 {
>>[%eval 641,16] [%emt 0:00:07]} 53. b5 {[%emt 0:00:14]} Bf3 {
>>[%eval 682,18] [%emt 0:00:00]} 54. b6 {[%emt 0:00:08]} h5 {
>>[%eval 1692,17] [%emt 0:01:15]} 55. Ra7 {[%emt 0:00:16]} Kh7 {
>>[%eval 32744,17] [%emt 0:00:46]} 56. f5 {[%emt 0:00:09]} Ba8 {
>>[%eval 32757,14] [%emt 0:00:17]} 57. Rxa8 {[%emt 0:00:03]} Kh6 {
>>[%eval 32758,13] [%emt 0:00:05]} 58. b7 {[%emt 0:00:00]} Kg5 {
>>[%eval 32762,13] [%emt 0:00:05]} 59. Ra4 {[%emt 0:00:00]} Kh6 {
>>[%eval 32763,13] [%emt 0:00:04]} 60. b8=Q {[%emt 0:00:01]} Kh7 {
>>[%eval 32764,11] [%emt 0:00:02]} 61. Kf4 {[%emt 0:00:00]} h4 {
>>[%eval 32765,12] [%emt 0:00:05]} 62. Kg5 {[%emt 0:00:02]} g6 {
>>[%eval 32766,10] [%emt 0:00:00]} 63. Ra7# {
>>(Lag: Av=0.73s, max=2.1s) [%emt 0:00:02]} 1-0
>
>Not only will Shredder 8 play Bg6 instantly it expected it when playing it's
>previous move.  I don't see it as a great winning move.  And who is to say that
>Hydra did not play it for all the wrong reasons?  This was in essence a blitz
>game and anything can happen.
>Jim

Yes, I agree...

Bg6 is not really a good test move......IMHO

Fritz 7 "sees it" almost instantly too, but soon changes to ....c4...etc.

Rob



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