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Subject: Re: ProDeo 1.1 and Arena 1.1- Arena Time Forfeit Issues

Author: Gregory Owett

Date: 09:18:45 04/16/05

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On April 16, 2005 at 10:29:26, John Brownlee wrote:

>Hi Gregory,
>
>I can provide some other factors which might affect time management under Arena.
>
>1) I always try to configure every engine with Pondering = OFF.
>   Some engines have bugs in pondering mode. I have fewer time forfeits under
>   Arena with pondering off.
>
>2) I set the Priority for Arena to Low Priority. It seemed that when I used
>   High Priority, my computer spent too much time on chess and it was very
>   slow to respond in other applications (email, web surfing, etc.)
>
>3) I changed my Windows XP setting for automatic updates from
>   automatic download and install to
>   automatic download but manual install.
>   Sometimes the Automatic install was rebooting my PC
>   during a chess tournament.
>
>4) I checked some of my larger PGN files today and discovered some
>   time forfeits that occurred with some engines.
>   All Time Controls are 40/20 min repeating (40 moves every 20 minutes).
>
>   Unfortunately I detected 1 of 73 tournament games played by Prodeo WB
>   forfeited on time (to Thinker) after 34 plies. The game was very even
>   with no advantage for either side.
>
>   I have noticed other time forfeits under Arena that seem to correlate with
>   certain engines. I do not have all the numbers on the percentage of games
>   forfeited for each engine listed, but maybe this list will provide a clue
>   to engine and GUI programmers to solve the time forfeit issue.
>
>   Pharaon - time forfeit 2 times in 141 games:
>     Pharaon (W)  - Zappa (B)    0 - 1 Time Forfeit after 82 plies
>     Crafty (W)   - Pharaon (B)  1 - 0 Time Forfeit after 1 ply
>                                 Somehow Arena thought that Pharaon was a human,
>                                 and not a program.
>   SOS - time forfeit 2 times in 140 games:
>     SOS (W)      - Crafty (B)   0 - 1 Time Forfeit after 4 plies
>     Zappa (W)    - SOS (B)      1 - 0 Time Forfeit after 13 plies
>
>   Notice the opponents in both cases were Crafty and Zappa.
>   Maybe that is significant (or maybe not).
>
>   Also I had frequent time forfeits by Atlas, Aldebaran,
>   and less frequently by Celes
>   and 1 time forfeit by Naum in 73 games. Naum was slightly ahead in the game.
>   Score was Arasan (W) = -0.54  Naum (B) = +0.89. Ply count = 67.
>
>I hope some of the items listed above may be of help to you and others.
>
>Regards,
>John

Hi John,

Yes. We can add to the black list some very good engines, like Toga II o.93,
Delfi 4.5, Amyan 1.595.

I noticed, that under CB there is anyway less crash. "But, that it is already
another history."

Regards,
Gregory



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