Discussion of computer chess matches and engine tournaments.
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- Posts: 4101
- Joined: Fri Mar 10, 2006 4:23 am
- Location: http://www.arasanchess.org
Werner wrote: ↑
Sat Mar 30, 2019 5:05 pm
How can I create a log file with this wb engine using winboard ?
-debugMode true should show all the commands winboard sends and receives.
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- Location: upstate
Werner wrote: ↑
Sat Mar 30, 2019 9:05 am
in a short testmatch with 100 games I have had around 50 games lost due to an illegale move:
Odd. I counted over 700 games I played with v2.0.34, including 400+ 4CPU ones, and only found one game that had to be replayed. It was from the 4CPU test, but I cannot determine now what was the error or if the error was on Schooner's part.
It's installed as an xboard engine under Cute Chess, using 512 MB hash as well.
I recall seeing precisely this error
with another engine. The situation was different but I suspect that underlying cause is the same -- undefined behavior possibly caused by a bug in the hashtable code.
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tpoppins wrote: ↑
Tue Apr 02, 2019 5:44 pm
The situation was different but I suspect that underlying cause is the same -- undefined behavior possibly caused by a bug in the hashtable code.
Another possibility may be incompatible mmx or sse hardware. Try using Schooner's non-popcount generic version.
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- Joined: Wed Mar 08, 2006 9:09 pm
Thank you for the answers. Under Arena I played 1000 games now without any problems.
I tried out Winboard again with log on - and could not repeat this behaviour. I used the same pc.