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Subject: Re: Shredder 8 Bug (at me too)

Author: Kurt Utzinger

Date: 03:48:39 01/22/04

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On January 22, 2004 at 02:53:50, Kurt Utzinger wrote:

>On January 22, 2004 at 02:15:02, Drexel,Michael wrote:
>
>>On January 22, 2004 at 01:58:21, Kurt Utzinger wrote:
>>
>>>On January 21, 2004 at 16:56:03, Drexel,Michael wrote:
>>>
>>>>I don't think it will be fixed soon.
>>>>
>>>>[D] 8/3k4/8/8/8/8/1r2P3/R3K3 w Q - 0 1
>>>>
>>>>Don't forget to set the castle long flag!
>>>>
>>>>New game
>>>>8/3k4/8/8/8/8/1r2P3/R3K3 w Q - 0 1
>>>>
>>>
>>>Shredder8  UCI: (P4 1.8/32 MB hash under Arena 1.02)
>>> 1   00:00  0.71   Kf2
>>> 1+  00:00  0.75   0-0-0+ Kc7
>>> 1+  00:00  6.25   0-0-0+ Rd2 Rxd2+ Ke6
>>> 1   00:00  7.27   0-0-0+ Ke7 Kxb2
>>> 2   00:00  7.50   0-0-0+ Ke6 Kxb2
>>> 3   00:00  7.48   0-0-0+ Ke6 Kxb2 Ke5
>>> 4   00:00  7.57   0-0-0+ Ke6 Kxb2 Kf5 Kc3
>>> 5   00:00  7.60   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Kf4
>>> 6   00:00  7.56   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Kc4
>>> 7   00:00  7.64   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Rd3 Kf4
>>> 8   00:00  7.69   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Rd3 Ke5 Kc4
>>> 9   00:00  7.79   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Rd3 Ke5 Rd4 Kf5
>>>10   00:00  7.80   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Rd3 Ke5 Rd4 Kf5 e4+ Kf4
>>>11   00:00  7.96   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Rd3 Ke5 Rd4 Kf5 Kd3 Ke5
>>>12   00:00  7.94   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Rd3 Ke5 Rd4 Kf5 Kd3 Ke5 e4
>>>13+  00:00  8.19   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Rd8 Kf5 Kd4 Ke6
>>>13   00:00  8.33   0-0-0+ Ke6 Kxb2 Kf5 Kc3 Ke4 Rd8 Ke5 Re8+ Kd6 e4 Kd7 Rg8 Ke6
>>>Kd4
>>>14   00:00  8.51   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke7 e4 Kf6 Kd4 Kg5
>>>15   00:00  8.53   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke6 Rd8 Ke7 Rb8 Kd6 Kd4 Kc7 Rf8 Kc6
>>>e4 Kd6 Rb8 Ke7 Ke5 Kd7
>>>16   00:00  8.69   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke5 Rd8 Ke6 Kd4 Ke7 Rb8 Kf7
>>>17   00:00  8.68   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke5 Rd8 Ke6 Kd4 Ke7 Rb8 Kd6 e4 Kc7
>>>Ra8 Kd6 Re8 Kc6 Rf8 Kb6
>>>18   00:00  8.84   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke5 Rd8 Kf6 e4 Ke5 Re8+ Kd6 Kd4 Kc7
>>>19   00:01  8.85   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke5 Rd8 Ke6 Kd4 Ke7 Rb8 Kd6 e4 Kc6
>>>Rd8 Kc7 Rd5 Kc6 Kc3
>>>20   00:01  9.06   0-0-0+ Ke6 Kxb2 Ke5 Kc3 Ke4 Rd8 Ke5 Re8+ Kd6 Rg8 Kd5 Rg5+ Ke6
>>>Kd4 Ke7
>>>21   00:02  9.08   0-0-0+ Ke6 Kxb2 Ke5 Kc3 Ke4 Rd8 Ke5 Re8+ Kd6 Rg8 Kd5 Rg5+ Ke6
>>>Kd4 Kf6 Rg1
>>>22   00:02  9.32   0-0-0+ Ke6 Kxb2 Ke5 Kc3 Kf6 Rd8 Ke7 Rb8 Kd6 Kd4 Kc6 Rd8 Kb5
>>>23   00:04  9.56   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke7
>>>24+  00:05  9.81   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke7 e4 Kf6 Kd4 Ke6 e5 Kf5 Kd5 Kg5
>>>24+  00:06  10.31   0-0-0+ Ke6 Kxb2 Kf6 Kc3 Ke7 e4 Kf6 Kd4 Ke6 e5 Kf5 Kd5 Kg6
>>
>>Hi Kurt,
>>
>>do you have the 5-piece tablebase krpkr installed?
>>It seems you have not installed the krpk endgame.
>>Otherwise Shredder would show a mate score immediately.
>>
>>This should be only an issue if tablebases are installed.
>>
>>Michael
>
>    Hi Michael
>    Test under Arena 1.02 was with tablebases deactivated.
>    Under Fritz-GUI with 4-men TB's all is o.k. too. I have
>    the 5-men TB's but never use them in Engine/Engine-
>    Matches (see no advantage).
>    Kurt

Hi Michael
It's correct: when using the 5-men EGTB then Shredder 8
will be unable to solve this position. I have just checked
this.
Kurt



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