Author: Robert Hyatt
Date: 07:34:55 10/04/99
Go up one level in this thread
On October 04, 1999 at 10:14:16, Bernhard Bauer wrote:
>
>>>
>>>Game 17 looks odd:
>>>1. d4
>>>{White mates} 1-0
>>>
>>>
>>>So my impression is that Crafty is stronger than LG2000a.
>>>Kind regards
>>>Bernhard
>>
>>
>>There are some subtle places where timing can screw up. IE take this:
>>
>>white wins (crafty) and the first thing it does is to go adjust the learning
>>stuff (maybe) after playing the move that leads to mate. Then black realizes
>>that he is mated and tells xboard, which promptly declares the game a win for
>>white and tells both to start a 'new' game. Meanwhile, white has finished the
>>learning cycle, and now tells xboard that it won. IE in _any_ winboard/xboard
>>tournament, you need to examine the pgn file for each game to be sure that the
>>result given was correct. This is a problem that is not easy to fix. It might
>>be better to use the -xreuse option so that both programs get restarted after
>>each game, which means the communication pipes get reset (hopefully) before each
>>game to prevent this timing glitch.
>>
>>Else it would be better if xboard declared the wins/losses/draws and totally
>>ignore a program's claim, to avoid this...
>
>Good to know, so I will use -xreuse for future matches. BTW, on a decent system
>(linux, winnt, ...) ponder=on should be the better way to run such a tournament.
>
>Kind regards
>Bernhard
Note that I haven't studied this carefully... the -xreuse option might still
suffer from timing oddities for all I know. But it seems that it should be a
bit safer. Try playing a 100 game match, game in 1 minute, then check the
pgn file xboard produces to be sure there are no 1 move games... if it works,
or fails, report back so we will know whether the raw results can be trusted
or if the pgn needs inspection for all such matches...
this will raise interesting questions about all winboard/xboard matches, and I
wonder how the chessbase winboard interface handles this?
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.