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Subject: Re: Shredder8's KRPKR usage

Author: Kurt Utzinger

Date: 11:28:08 09/11/04

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On September 11, 2004 at 13:53:55, Ernst Walet wrote:

>On September 11, 2004 at 13:50:33, Kurt Utzinger wrote:
>
>>On September 11, 2004 at 13:34:46, Ernst Walet wrote:
>>
>>>Hi all,
>>>
>>>Can any one confirm that Shredder8 doesn't use krpkr tablebases?
>>>
>>>[D]4k3/8/8/4r3/4P3/4R3/8/4K3 w - -
>>>
>>>Thanks,
>>>Ernst.
>>
>>
>>      Hi Ernst
>>      I can't confirm this. With the 4-men EGTB Shredder 8
>>      analysis looks as follows:
>>
>>      New game
>>      4k3/8/8/4r3/4P3/4R3/8/4K3 w - - 0 1
>>
>>      Analysis by Shredder 8:
>>
>>      1.Ke2 Re6
>>        ²  (0.44)   Depth: 1/1   00:00:00
>>        =  (0.00)   Depth: 2/4   00:00:00
>>      1.Kf2 Re6 2.Kf3 Ke7 3.Kf4 Rh6 4.Ra3 Rf6+ 5.Kg4 Re6
>>        =  (0.05)   Depth: 2/4   00:00:00
>>        =  (0.04)   Depth: 25/38   00:00:19  7946kN, tb=226392
>>
>>      And with the 5-men EGTB Shredder 8 plays at once
>>      [due to EGTB-access] and shows an evaluation of 0.00
>>      Kurt
>
>
>Thank Kurt for trying, however to be sure with the 5 piece egtb, did you uncheck
>the tablebase use by the gui?
>
>Ernst.


      With "Use Tablebases" deactivated, Shredder 8 will
      of course not use the 5-men EGTB. Isn't this logical?
      Kurt

Shredder 8 - Utzinger
4k3/8/8/4r3/4P3/4R3/8/4K3 w - - 0 1

Analysis by Shredder 8:

1.Kd1
  =  (0.00)   Depth: 1/1   00:00:00
1.Ke2 Re6
  =  (0.00)   Depth: 1/1   00:00:00
  =  (0.00)   Depth: 2/4   00:00:00
1.Kf2 Re6 2.Ra3 Rxe4 3.Ra8+ Ke7 4.Ra6 Ke8 5.Ra7
  =  (0.00)   Depth: 2/4   00:00:00
  =  (0.00)   Depth: 26/45   00:00:13  5450kN

(Utzinger, MyTown 11.09.2004)




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