Author: Uri Blass
Date: 15:51:16 10/07/00
Go up one level in this thread
On October 07, 2000 at 18:26:55, Chessfun wrote:
>On October 07, 2000 at 18:16:16, Chessfun wrote:
>
>>On October 07, 2000 at 18:12:51, Chessfun wrote:
>>
>>>On October 07, 2000 at 17:25:24, Uri Blass wrote:
>>>
>>>>On October 07, 2000 at 15:33:03, Chris Taylor wrote:
>>>>
>>>>>Tiger is beating Crafty 17.10. It may change overnight? I will give the final
>>>>>result when I stop the two playing? Here, is an indicator of Tiger's aggresive
>>>>>play.
>>>>>Crafty is no pushover, never has been, never will be!! In my opinion Crafty is
>>>>>a good mover? On this occasion though, Tiger shows its claws.
>>>>>
>>>>>Chris Taylor.....
>>>>>
>>>>>Tiger is running on an AMD 500 96 meg ram
>>>>>
>>>>>[Event "Blitz:60'"]
>>>>>[Site "Nottingham"]
>>>>>[Date "2000.10.07"]
>>>>>[Round "4"]
>>>>>[White "Tiger 0.92 Gambit Beta"]
>>>>>[Black "Crafty 17.10 Chessbase version"]
>>>>>[Result "1-0"]
>>>>>[ECO "B50"]
>>>>>[Annotator "0.16"]
>>>>>[PlyCount "59"]
>>>>>[EventDate "2000.09.18"]
>>>>>
>>>>>{128MB, General.ctg. Celeron 500
>>>>>} 1. e4 {0} 1... c5 {0} 2. Nf3 {0} 2... d6 {0} 3.
>>>>>Nc3 {0} 3... Nf6 {0} 4. g3 {0} 4... Nc6 {0} 5. Bg2 {0} 5... e6 {0} 6. O-O {0}
>>>>>6... Be7 {0} 7. d3 {0} 7... O-O {0} 8. Bf4 {1} 8... e5 {
>>>>>last book move 0.16/12 104} 9. Be3 {72} 9... Be6 {0.12/11 100} 10. a3 {75}
>>>>>10... h6 {0.04/11 194} 11. h3 {119} 11... Qd7 {-0.21/11 92} 12. g4 {55} 12...
>>>>>d5 {-0.24/12 89} 13. exd5 {276} 13... Nxd5 {-0.28/13 0} 14. Nxd5 {77} 14...
>>>>>Bxd5 {-0.30/12 87} 15. c4 {184} 15... Be6 {-0.47/12 84} 16. Nh2 {55} 16... Rfd8
>>>>>{-0.78/11 114} 17. Be4 {103} 17... f5 {-0.60/12 0} 18. gxf5 {42} 18... Bxf5 {
>>>>>-0.68/12 36} 19. Qf3 {79} 19... Bxh3 {-0.99/11 84} 20. Qh5 {44}
>>>>
>>>>
>>>>An interesting sacrifice.
>>>>What is Gambittiger's evaluation?
>>>>
>>>> 20... Bxf1 {
>>>>>-1.86/10 99} 21. Kxf1 {0} 21... Qe8 {-1.96/10 76} 22. Bg6 {285} 22... Qf8 {
>>>>>-1.69/12 70} 23. Ng4 {80} 23... Bd6 {-1.51/11 1}
>
>
>Gambit 0.95 Cel 433, 48 mb.
>
>; 00:00:00.6 24. Score: 0.96 depth: 7 Bxh6 gxh6 Nxh6+ Kg7 Nf5+ Kf6 Rd1 Nd4
>Nh6
>; 00:00:00.1 24. Score: 0.24 depth: 7 Bxh6 gxh6 Nxh6+ Kg7 Nf5+ Kf6 Re1 Nd4
>Nxd6 Rxd6 Rxe5
>; 00:00:01.2 24. Score: 0.64 depth: 7 Be4 Ne7 Ke2 Qf7 Nxh6+ gxh6 Rg1+ Kf8
>Qxh6+ Ke8 Rg7
>; 00:00:02.3 24. Score: 0.70 depth: 8 Be4 Ne7 Ke2 Qf7 Nxh6+ gxh6 Rg1+ Kf8
>Qxh6+ Ke8 Rg7 Qf8
>; 00:00:05.4 24. Score: 0.70 depth: 9 Be4 Ne7 Ke2 Qf7 Nxh6+ gxh6 Rg1+ Kf8
>Qxh6+ Ke8 Rg7 Qf8 Kf1
>; 00:00:11.5 24. Score: 0.70 depth: 10 Be4 Ne7 Ke2 Qf7 Nxh6+ gxh6 Qxh6 Qg7
>Qe6+ Qf7 Rg1+ Kf8 Bh6+ Ke8 Bg6
>; 00:00:23.9 24. Score: 1.60 depth: 10 Nxh6+
>; 00:00:26.6 24. Score: 1.60 depth: 11 Nxh6+
>; 00:01:19.6 24. Score: 2.50 depth: 11 Be4
Nxh6 is not convincing for white when Be4 is convincing.
Bxh6 is more typical for other chess programs that are happy to draw in this
position.
I think that finding Be4 with positive evaluation is a good test position for
chess program(Be4 is clearly winning and I guess that it is the only move that
leads to a clear win for white.
I think that most programs find Be4 for the wrong reason with negative
evaluation and later change their mind to Bxh6 with 0.00 evaluation only to find
Be4 for the right reason later.
Uri
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