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Subject: Re: It is a Fritzbug.

Author: Ernst Walet

Date: 12:55:15 02/02/00

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On February 02, 2000 at 15:34:32, Georg Langrath wrote:

>On February 02, 2000 at 13:04:57, Rob Shultz wrote:
>
>>I ran the following position on Fritz 5.32 and even after 40 minutes it did not
>>see the win!  I was using a PII 450.  Junior 5.0 saw the win right away.  Is
>>there some setting I could have changed to cause Fritz to miss this?
>>
>>[D]3n4/8/pppN4/k7/2P5/1K6/P7/8 w - -
>>
>>The win follows c5.
>>
>>Thanks,
>>Rob
>
>It is a bug. As it is a mate in 3 it should be found instantly. Neither newest
>Fritz 6, nor mate search program in Fritz find it. I have also tried earlier
>versions of Fritz with the same bad result.
>
>Georg


But this is what Fritz6a does over here, zero seconds, mate in 3.

Ernst-J.

New position
3n4/8/pppN4/k7/2P5/1K6/P7/8 w - - 0 1

Analysis by Fritz 6:

1.c5
  ²  (0.59)   Depth: 7/11   00:00:00  1kN
1.c5!
  +-  (1.72)   Depth: 10/16   00:00:00  10kN
1.c5!
  +-  (3.19)   Depth: 11/18   00:00:00  22kN
1.c5!
  +-  (#3)   Depth: 12/18   00:00:00  43kN




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