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Subject: Re: do all programs see this draw here....

Author: Slater Wold

Date: 11:11:55 12/27/03

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On December 27, 2003 at 09:09:57, Russell Reagan wrote:

>On December 27, 2003 at 01:08:07, Slater Wold wrote:
>
>>On December 27, 2003 at 00:51:11, Mike Byrne wrote:
>>
>>>
>>>[d]8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1
>>
>>P4 2.0Ghz(m):
>>
>>New game
>>8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1
>>
>>Analysis by Deep Fritz 8:
>>
>>1...Ra1+!
>>  ±  (1.35)   Depth: 7/14   00:00:00  19kN
>>1...Ra1+!
>>  ±  (1.07)   Depth: 7/14   00:00:00  20kN
>>1...Ra1+!
>>  ²  (0.50)   Depth: 7/15   00:00:00  21kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2
>>  =  (0.00)   Depth: 7/15   00:00:00  23kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2
>>  =  (0.00)   Depth: 8/11   00:00:00  27kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2
>>  =  (0.00)   Depth: 9/15   00:00:00  40kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5
>>  =  (0.00)   Depth: 10/16   00:00:00  63kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5
>>  =  (0.00)   Depth: 11/17   00:00:00  155kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2
>>  =  (0.00)   Depth: 12/18   00:00:00  292kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2
>>  =  (0.00)   Depth: 13/19   00:00:00  538kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6
>>  =  (0.00)   Depth: 14/21   00:00:01  970kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6
>>  =  (0.00)   Depth: 15/21   00:00:02  2101kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1
>>  =  (0.00)   Depth: 16/23   00:00:04  3913kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1
>>  =  (0.00)   Depth: 17/25   00:00:09  7612kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1
>>  =  (0.00)   Depth: 18/26   00:00:16  14406kN
>>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1
>>  =  (0.00)   Depth: 19/29   00:00:33  29512kN
>>
>>(,  27.12.2003)
>
>Maybe Deep Fritz 8 is improved after all :)
>
>Athlon 2400+ (2GHz)
>
>Fritz 8
>8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1
>
>Analysis by Fritz 8:
>
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1
>  =  (0.12)   Depth: 7/14   00:00:00  14kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2
>  =  (0.12)   Depth: 8/13   00:00:00  24kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Be4 6.Ke3 Bd5 7.Bd3
>  =  (0.19)   Depth: 9/16   00:00:00  44kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Be4 6.Ke3 Bd5 7.Bd3
>  =  (0.19)   Depth: 10/15   00:00:00  77kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf3
>  =  (0.12)   Depth: 11/17   00:00:00  244kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Bg2 7.Bb3 Bd5 8.Bxd5
>  =  (0.12)   Depth: 12/21   00:00:00  465kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Be2 7.Bb3 Bc4 8.Bxc4
>Kh6 9.h4 Kg7
>  =  (0.12)   Depth: 13/21   00:00:01  1067kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Be2 7.Ba4 Bb5 8.Bc2
>Bd3
>  =  (0.12)   Depth: 14/23   00:00:02  2054kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Bd1 Kh4
>  =  (0.09)   Depth: 15/24   00:00:05  4100kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Bd1 Bf3
>  =  (0.06)   Depth: 16/25   00:00:10  7940kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf1
>  =  (0.06)   Depth: 17/27   00:00:21  17182kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf1
>  =  (0.00)   Depth: 18/28   00:00:37  30919kN
>
>However! Using selectivity = 3, Fritz 8 finds it in 1 second. What are the
>engine parameters for Deep Fritz 8? The parameters for Fritz 8 (default) are:


Contempt value     0
Selectivity        2
Tablebase depth    3
Futility pruning   check
Aggressiveness     2
Everything else    0

It is *much* improved.



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