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Subject: Re: Mate in 19, which program?

Author: Angrim

Date: 12:58:18 03/08/02

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On March 08, 2002 at 09:22:58, Ed Schröder wrote:

>[d]4r3/p1p1pPp1/P1P1P1P1/5K2/3p2P1/7p/3P1ppr/3R1nkq w - - id M19;
>
>I came across this beauty, mate in 19 moves. Rebel has no clue.
>
>Ed

too complex for regular pn-search, pn^2 search proves the win
in 99 seconds.
hardware: Athlon 1.2ghz
proved that move f7xe8n wins, 18.5 turns
PN2:42345930 evals, 3827760 expands, 99.18 seconds

Almost all of the time was spent searching the winning move,
Rb1 was the only other move that was searched for more than
one pn2 node.

Angrim

• Re: Mate in 19, which program? Paul Byrne 21:43:04 03/08/02
  • Re: Mate in 19, which program? Vincent Diepeveen 07:59:24 03/10/02

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