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Subject: Re: A mate for Leonid, correction

Author: leonid

Date: 13:34:58 10/10/01

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On October 10, 2001 at 13:18:10, Sven Reichard wrote:

>On October 10, 2001 at 13:16:34, Sven Reichard wrote:
>
>>Thought you might like this.
>>
>>Bernhard Gaerths, "Das Matt", 1942
>>
>
>corrected diagram, sorry, typing directly from the diagram
>[D] 8/8/ppPP4/kp1Pp1P1/1p2P1pb/1K1P4/P4Bpp/8 w - -
>>
>>Please indicate your result! I'd also be interested in what other programs
>>think.
>>
>>Alice fails to solve it in reasonable time.

Thanks for position!

My program is probably not better that "Alice". By brute force I went only 10
moves deep and found that there are no mate. It took already 11 min and 54 sec.
Since the branching factor jumped very considerably from previous 4 (between 7
and 8 move) to almost 16 (between 9 and 10 move), I gave up. By curiosity I will
put 11 moves at night to see if branching factor is still the same. Only if it
will be the same that I could ask mine look for next 12 moves.

Celeron 600Mhz. No hash.

Leonid.

>>Sven.



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