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Subject: Re: Strongest chess program ever made, Deep Intimidator

Author: Stuart Cracraft

Date: 10:43:35 01/02/06

Go up one level in this thread


On January 02, 2006 at 11:14:38, William Penn wrote:

>On January 02, 2006 at 10:55:58, William Penn wrote:
>
>>On January 02, 2006 at 07:37:45, K. Burcham wrote:
>>
>>>
>>>The strongest chess program ever made, opened the a-file, blocked the e5 pawn,
>>>and went on to intimidate the 2750 opponent to resign.
>>>
>>>will your program open the a-file and block the e5pawn.
>>>
>>>Here is rybka after 5 hours.
>>>2200mhz Athlon64
>>>512 hash
>>>
>>>Looking for this line
>>>36. axb5 axb5 37. Be4
>>>
>>> [D] r1r1q1k1/6p1/p2b1p1p/1p1PpP2/PPp5/2P4P/R1B2QP1/R5K1 w - - 0 36
>>>
>>>Rybka 1.0 Beta 32-bit:
>>>
>>>36.Qb6 Qe7 37.axb5 Rab8 38.Qxa6 e4 39.Qa7 Qe5 40.Qe3 Bc7
>>>  +-  (1.62)   Depth: 22   00:38:29  271623kN
>>>36.Qb6 Qe7 37.axb5 Rab8 38.Qxa6 e4 39.Qa7 Qe5 40.Qe3 Bc7
>>>  +-  (1.59)   Depth: 23   01:07:07  465416kN
>>>36.Qb6 Qe7
>>>  ±  (1.26)   Depth: 24   05:14:05  1975804kN
>>>
>>>kburcham
>>
>>
>>Rybka considers your idea as second best. Using multi-PV mode...
>>
>>[D]r1r1q1k1/6p1/p2b1p1p/1p1PpP2/PPp5/2P4P/R1B2QP1/R5K1 w - -
>>
>>Engine: Rybka 1.01 Beta 7 32-bit (704 MB)
>>by Vasik Rajlich
>>
>>17     5:20   +2.02    1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8
>>                       5.Qa4 a5 6.bxa5 Bxa5 7.Kh2 Qd7 (33.664.377) 107
>>
>>17     5:55   +1.23    1.axb5 axb5 2.Be4 Rcb8 3.Ra6 Qd8
>>                       4.Kh2 Rxa6 5.Rxa6 Qd7 6.Kg3 Kf7
>>                       7.Qe3 Rb7 (37.609.781) 108
>>
>>17     6:12   +0.60    1.Be4 a5 2.axb5 axb4 3.Rxa8 Rxa8
>>                       4.Ra6 Qd8 5.Qa2 Rxa6 6.bxa6 bxc3
>>                       7.Kh2 Qa8 (39.353.897) 108
>>
>>
>>P.S.
>>I have no prior experience trying to import FEN into Shredder Classic 9.1 GUI.
>>The "0 36" was truncated from FEN when I imported this position from an .epd
>>file. I don't know if that has any effect on the analysis, nor if there is a
>>better way to import FEN into that GUI.
>>WP
>
>I let it run a little longer and the gap between the first two PVs is narrowing.
>Perhaps your idea would come out on top eventually, with a superfast computer or
>very long run times.
>
>
>r1r1q1k1/6p1/p2b1p1p/1p1PpP2/PPp5/2P4P/R1B2QP1/R5K1 w - -
>
>Engine: Rybka 1.01 Beta 7 32-bit (704 MB)
>by Vasik Rajlich
>
>20     25:13  +1.70    1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4
>                       4.Qa7 Qe5 5.Qe3 Re8 6.b6 Qh2+ 7.Kf1 Bf4 (160.548.890) 108
>
>20     28:22  +1.27    1.axb5 axb5 2.Be4 Rcb8 3.Ra6 Kf7
>                       4.Ra7+ Kg8 5.Kh2 Qd8 6.Kg3 Rxa7
>                       7.Qxa7 Bc7 (181.434.497) 109
>
>20     30:42  +0.67    1.Be4 a5 2.axb5 axb4 3.Rxa8 Rxa8
>                       4.Ra6 Qd8 5.Qa2 Rxa6 6.bxa6 Bc5+
>                       7.Kh2 b3 (196.471.231) 109
>
>WP

I believe Be4 was the position that DB played that gave Kasparov pause.

So to find that in 30 minutes by Rybka is a good accomplishment.

Another feather in its hat.



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