Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Endgame: Best Move and Tuning

Author: Charles Roberson

Date: 18:02:37 03/04/06

Go up one level in this thread


On March 04, 2006 at 20:28:34, Uri Blass wrote:

>On March 04, 2006 at 18:10:27, Charles Roberson wrote:
>
>>
>>  Yes, in following the match after Bxh3 black makes g3xh2.
>>  Eventually the white king takes h2 and we have a 5 man endgame.
>>  The Nalimov tablebase server sees it as a mate in 21 against black.
>>
>>  However, at blitz time controls (without EGTB's) a mate in 21 is too
>>  much to see at 1 sec per move which is what I end up with on the 76th
>>  move of a G/5 match.
>>
>>   So, I like the much more "human" moves of Bxd3 and h2xg3.
>>
>>   Maybe the best idea is to forget it and put in EGTB's??????
>>   Seems that would save me a fair amount of analysis down the road.
>
>I think that the best idea is simply to improve your human knowledge.
>I also did not know it but I learned from the position.
>
>2 bishops are simply usually enough to stop a pawn in the 6th and no need for
>the king to be close to the pawn for that target.
>
>Even the following position is a simple win for white.
>
>[D]K7/8/8/6B1/8/3p3B/4k3/8 b - - 0 2
>
>The main question is how could your program not win the game.
>
>Uri

    At the end of a blitz game it was making only 6 ply searches in < 1 secs.
    It fell into 3 fold rep of position after black plays d2d3.
    I checked the Nalimove tablebases on the position you posted and its a
    mate in 21. Seems a bit much for a program to see in < 1 secs per move.
    The machine is a 1.6 GHz Athlon 32 bit cpu.

    Also, for Telepath I have not put in transposition tables yet.





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.