Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Crafty: trouble with possible perpetual check positions

Author: José de Jesús García Ruvalcaba

Date: 12:00:19 04/22/99

Go up one level in this thread


On April 22, 1999 at 14:51:24, Dave Gomboc wrote:

>On April 22, 1999 at 12:29:20, José de Jesús García Ruvalcaba wrote:
>
>>On April 20, 1999 at 21:44:00, Dave Gomboc wrote:
>>
>>>
>>>I am not very good with operating crafty from the command line: I could not tell
>>>it to "go to infinite time control mode and think on a move".
>>
>>Type 'analyze'. Other way is to use crafty via Xboard, and put it on 'analysis
>>mode'. I assume there is something similar in Winboard.
>
>It is the same, but the PV information gets replaced with each ply, instead of
>being listed.  I discovered the problem under Winboard, and ran Crafty directly
>to get the output that was in the original message.
>

	You can put the line 'log=on' in your .craftyrc file (or is it crafty.rc?), or
type 'log on' in the command line. That will save the analysis in a log file
(this is what I do).

>>> But it seems like
>>>this ponder search should be sufficient.
>>>
>>
>>Most times the ponder search will not be sufficient.
>
>Sufficient for what?  My sentence meant "sufficient for demonstrating that
>Crafty is perhaps not analysing the position as well as possible".  I am not
>sure what "sufficient" means in your sentence.
>

	Sufficient to give good analysis. The ponder search will pick a move for the
side to move (which may or may not be the best), and then ignore all the other
moves. In fact it analyses from the other side's perspective as if that move
were made.

>>>Dave
>>
>>I suggest you read the file 'crafty.doc', it has a full description of all
>>available crafty commands.
>
>I have read it before.  It is far too long for wade through it on the rare
>occasions that I use the command line interface.  I generally use the "help"
>command, and guessed that "analyze" would be for a whole game.
>

	'annotate' is for a whole game saved in a pgn file. 'analyze' will analyze the
current position, and will let you enter moves (it will analyze the new current
position then).

>>José.
>
>Dave



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.