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Subject: Re: takes shredder5 51 seconds to find mate in one

Author: Roy Eassa

Date: 12:23:07 09/27/01

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On September 27, 2001 at 14:52:46, Uri Blass wrote:

>On September 27, 2001 at 14:14:07, K. Burcham wrote:
>
>>takes shredder5 51 seconds to decide on Qh1. 1500 mhz   amd
>>
>>Engine: Shredder 5
>>by Stefan Meyer-Kahlen
>>
>>
>>  1.00	 0:27 	+9.84 	1.dxe4 Rxd5 2.Rxg4 Bxc3 (5.687.141) 205.4
>>  1.00	 0:51 	  +M1++ 	1.Qh1+ (10.192.541) 199.6
>>  1.00	 0:51 	  +M1 	1.Qh1+ (10.192.542) 199.6
>>best move: Qa1-h1 time: 0:51.058 min  n/s: 199.642  nodes: 10.192.560
>>
>>kburcham
>
>New position
>[D]8/8/pppppppK/NBBR1NRp/nbbrqnrP/PPPPPPPk/8/Q7 w - - 0 1
>
>Analysis by Goliath Light 1.5:
>
>1.Qh1#
>  +-  (#101)   Depth: 4/31   00:00:15  2874kN
>1.Qh1#
>  +-  (#1)   Depth: 4/31   00:00:15  2874kN
>
>(Blass, Tel-aviv 27.09.2001)
>
>I do not understand the first mate in 101 score
>
>Deep Fritz's analysis after more than 10 minutes of search
>
>New position
>8/8/pppppppK/NBBR1NRp/nbbrqnrP/PPPPPPPk/8/Q7 w - - 0 1
>
>Analysis by Deep Fritz:
>
>1.dxe4!
>  +-  (1.56)   Depth: 1/2   00:00:00
>


Is there a simple, understandable reason why several "strong" programs take so
long here?  (Deep Fritz not seeing the mate in 1 after 10 minutes is
mind-boggling to me!)



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