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Subject: Re: One mate to solve... for Champions

Author: Angrim

Date: 12:24:29 06/08/01

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On June 04, 2001 at 11:10:30, leonid wrote:

>On June 02, 2001 at 23:54:08, leonid wrote:
>
>>Hi!
>>
>>If you would like to solve some easy mate then try this:
>>
>>[D]qqnqBB2/rqqNQQ2/kqQQQRnK/rqqNQR2/bbqQQQ2/8/8/8 w - -
>>

that one was easy.
proved that move d7xc5 wins, 9 turns
PN2:1752367 evals, 42893 expands, 20.15 seconds

>>I know that at Sunday we have more people coming to this place that usual. So,
>>if you will find previous position just too little for you, then go with the
>>next:
>>
>>[D]1Q1qq1Q1/2rnnr2/1rBkqBr1/2pbbp2/1NPPPN2/Q2R2Q1/2RKR3/1q3q2 w - -
>>
>>Please indicate your result.

proved that move f6xe5 wins, 15 turns
PN2:14184770 evals, 462347 expands, 185.04 seconds

note that proof number search tends to look at all of the lines which
include repeated checks before any quieter lines, so these are a relatively
easy type of win for it to find.  an 8 ply deep KR vs K ending might
be harder :)

>>
>>Thanks,
>>Leonid.



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