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Subject: Re: Mate in 1 - but Fritz 6 needs 1 hour!!!

Author: Paul Byrne

Date: 00:03:27 08/12/00

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On August 10, 2000 at 16:17:47, Christoph Fieberg wrote:

>Unbelievable, but true:
>I composed a position which is mate in 1 and can easily found, but Fritz6 on
>Pentium III, 500 Mhz and 32 MB Hash needs more than 1 hour to show it (excatly
>1:03:17)!!!
>How do other computers react?
>
>The position is
>FEN: 8/8/pppppppK/NBBR1NRp/nbbrqnrP/PPPPPPPk/8/Q7 w - - 0 1

My program gets this in well under a second.  Mostly because I had a similar
problem when I first had it play ICC's wild 8 which starts with

[D] rnbqkbnr/8/8/pppppppp/PPPPPPPP/8/8/RNBQKBNR w - - 0 1

I made some adjustments to stop the qsearch from going crazy.

Still, it's nice to know that out of all the countless possible legal chess
positions, there exists at least one which my program handles better than a
program like Fritz6.  :)

-paul



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