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Subject: Re: I was complete wrong! There is no progress (except in Yace)...

Author: Uri Blass

Date: 03:27:53 01/03/02

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On January 03, 2002 at 05:55:41, Gian-Carlo Pascutto wrote:

>On January 03, 2002 at 01:05:14, Jouni Uski wrote:
>
>>[D]k7/P7/P7/P7/P7/P7/P7/R3K3 w Q - 0 1
>>
>>Mate in 8
>>
>>I tried this at home with Tiger14 and Fritz7 and Shredder5.32. None of them has
>>any idea about mate in 8. Then I tried with Mate2.1, but no solution under 30
>>minutes. What's the problem? Only Yace gives CORRECT mate in few seconds. Is
>>this null move problem?
>>
>>Jouni
>
>Interesting. Sjeng zooms up to 20 ply in a few seconds but doesn't see _any_
>mate.
>
>--
>GCP

With only single reply extension and no pruning the mate is only 8 plies

1.0-0-0 2.Rd8 3.Rd7 4.Rd6 5.Rd5 6.Rd4 7.Rd3 8.Ra3#


How many plies is this line for your program?

Uri



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