Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Crafty does not alway respond to "new" command

Author: Robert Hyatt

Date: 07:25:34 01/29/00

Go up one level in this thread


On January 29, 2000 at 04:05:00, Lex Loep wrote:

>On January 28, 2000 at 17:21:00, Robert Hyatt wrote:
>
>>On January 28, 2000 at 15:44:03, Lex Loep wrote:
>>
>>>While working on my winboard adapter I run across this strange problem,
>>>when a new game command is given on the GUI menus, the winboard
>>>adapter translates this to a "new\n" be send to the winboard engine
>>>crafty 17.3
>>>normally after 'new' crafty comes back with tellics .. and kibitz...
>>>not in this case, even giving 3 times new in a row, nothings comes back.
>>>Then when I pass the first move to crafty, it certainly remembers all
>>>the 'new' commands and shows all the tel and kib lines 3 times followed
>>>by the moves.
>>>Now in the above case there is no real problem, but if you play a few
>>>moves until it is out the opening book, then give 'new' , the new command
>>>is never recognised, then playing the first move is seen as illegal. then
>>>another 'new' command brings everything back.
>>>I first though there is some problem in hanlding the pipes from the
>>>winboard adapter to crafty, but I could not find anything wrong.
>>>
>>>so I did the same test starting crafty standalone, gave it the following
>>>commands:
>>>
>>
>>
>>are you fflushing the buffer on output?  Or have you set the buffer size
>>to zero.  Crafty doesn't do any buffering at all, using only read() and
>>write() to talk thru the pices.  If you don't flush() after writing "new\n"
>>I won't get it until later.
>>
>
>I am using WriteFile followed by FlushFileBuffers, if it get's it later
>it's no problem, but sometimes it does not get it at all.
>The same happens with crafty running in a command prompt and just
>typing in the commands from the keyboard. It seem related to the 'new'
>command itself in combination with pondering.
>If I send the sequence
>"ponder off\n"
>"new\n"
>then it works fine.
>
>Lex



Is this the most recent version(s)?  IE I just tried this:

book off
e4
(wait for it to move)
(it makes move and starts pondering)
I type "new"
game backs up to move 1.





>
>
>>
>>
>>
>>>xboard
>>>e4
>>>---- got back move e7e5
>>>e4
>>>---- got back move g8f6
>>>h4
>>>---- out of book, got back move f6e4
>>>new
>>>----  no response here
>>>e4
>>>----  Illegal move: e4   ??????
>>>
>>>Do I miss something, is this normal ?  Crafty 15.x has the same behaviour.
>>>
>>>Platform is NT 4 / SP6 / 128 MB
>>>
>>>
>>>Lex



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.