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Subject: Re: Mate in 16 mystery

Author: scott farrell

Date: 04:38:48 09/05/03

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On September 05, 2003 at 00:57:12, Angrim wrote:

>On September 04, 2003 at 10:20:40, Dana Turnmire wrote:
>
>>In the following position Chess Genius 7 cannot find mate after many hours of
>>analysing yet Chessmaster 9000 finds mate in 16 INSTANTLY.  What gives?
>>[d] 4r1r1/bB4p1/8/2p1kPKn/n7/3R4/3P4/2B5 w - -
>
>tried proof number search on this, easy position for that type of search.
>Maybe Chess Genius 7 doesn't extend on checks.
>
>proved that move d3d5 wins, 16 turns
>PN:305895 evals, 22291 expands, 35 max ply,  0.95 seconds real,  0.90 cpu
>
>Angrim

I am researching pn2, do you have any materials, psuedo code, binary, source
code that you can share to help my quest/learning?

thanx
Scott



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