Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Junior 8 doesn't see this simple mate

Author: Mihaly Szalai

Date: 09:26:38 08/21/03

Go up one level in this thread


On August 21, 2003 at 10:34:59, Jaime Benito de Valle Ruiz wrote:

>On August 21, 2003 at 10:10:54, Mihaly Szalai wrote:
>
>>[D]8/8/8/4p1p1/6N1/5p1p/5K2/7k w - - 0 1
>>
>>All the programs I've tried see the mate
>>except Junior 7 and 8. They go to depth=63
>>and score=0.00 in a few seconds then stop.
>>Why? One knight is not enough to mate?
>
>Even more susprising:
>
>[D]8/8/5N2/8/6p1/8/5K1p/7k w - - 0 6
>6. Nxg4 (0.00) Depth 21  tb=11693
>[D]8/8/8/8/4N1p1/8/5K1p/7k b - - 0 6
>6...g3+ 7. Nxg3# Depth 3
>It appears that it must be "thinking" that king & knight cannot mate, and its
>aggresive pruning system must discard most of the options!!! It's just a guess,
>of course.
>
>Regards,
>
>  Jaime


Jaime,

interesting: Junior 8 sees this mate on my Celeron 1.7 GHz.

Mihaly



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.