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Subject: Re: It is a Fritzbug.

Author: José de Jesús García Ruvalcaba

Date: 14:35:55 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

	This looks like a classic null-move problem to me: 1. c5 b5 2. a3 and if black
is in zugzwang, if black is allowed to pass at this point it is not a mate in
three.
José.

• Re: It is a Fritzbug. Paulo Soares 14:41:35 02/02/00
  • Re: It is a Fritzbug. José de Jesús García Ruvalcaba 14:49:52 02/02/00
    • Re: It is a Fritzbug. Paulo Soares 15:00:05 02/02/00
      • Re: It is a Fritzbug. Georg Langrath 22:46:28 02/02/00
        • Re: It is a Fritzbug. Paulo Soares 08:24:34 02/03/00
          • Re: It is a Fritzbug. Georg Langrath 13:05:44 02/03/00

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