Author: Robert Hyatt
Date: 06:47:55 10/04/99
Go up one level in this thread
On October 04, 1999 at 04:28:06, Bernhard Bauer wrote:
>On October 02, 1999 at 22:25:07, Andrew wrote:
>
>> Is there any kind of time controls for lg2000a for use under winboard
>>such as Crafty's TIME and ST commands?
>
>Hallo,
>since we could get the impression that Lg2000a is very strong I did two winboard
>tournaments. The first with 40 moves in 5 min and the second with 40 moved in 1
>hour. Here my results.
>
>
>Winboard match on Pentium 450 MHz
>
>Crafty 16.19 vs. LittleGoliath2000a
>Settings:
> Crafty LittleGoliath2000a
>Hashsize 24 / 4 32
>Book on on
>Ponder on on
>Tablebases 4-man --
>
>First match
>Time: 5 min n 40 moves
> winboard -mg 20 -fcp "wcrafty hash=24M hashp=4M cache=2M egtb"
> -scp "goliath\LG2000a.exe"
> -tc 5 -mps 40 -sgf matchfile.pgn
>Result:
>
> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 |
>
>Crafty 1 1 d 0 0 1 1 d 1 d d d d 1 0 1 1 1 d 1 |
>13.5
>Lg2ka 0 0 d 1 1 0 0 d 0 d d d d 0 1 0 0 0 d 0 |
>6.5
>Elodiff: 127
>
>Second match
>Time: 60 min n 40 moves
> winboard -mg 200 -fcp "wcrafty hash=24M hashp=4M cache=2M egtb"
> -scp "goliath\LG2000a.exe"
> -tc 5 -mps 40 -sgf matchfile.pgn
>Result:
>
> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
>22 23 24 |
>
>Crafty 1 0 1 1 1 1 1 d 1 d 1 d 1 1 1 0 ?? 0 d d d
>1 1 d | 16.5
>Lg2ka 0 1 0 0 0 0 0 d 0 d 0 d 0 0 0 1 ?? 1 d d d
>0 0 d | 6.5
>Elodiff: 162
>
>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...
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