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Subject: Re: Ruffian engines shut down in automantic play on the Playchess server

Author: Brian Katz

Date: 10:56:48 12/27/03

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On December 27, 2003 at 13:37:12, Luis Smith wrote:

>On December 27, 2003 at 12:48:56, Brian Katz wrote:
>
>>Has anyone encountered this Ruffian problem also?
>>I was using Ruffian 1.0.0 on the Playchess server and early in the opening it
>>would just stall and not make a move and lose on time.
>>I was running an engine tournament on my PC and found that Ruffian 1.0.0 did
>>very well at game 5 on an AMD Athlon XP 2600+, better than 1.0.1. It did better
>>than Fritz 8 so I wanted to experiment with Ruffian 1.0.0 on the Playchess
>>Server to see just how well it would do.
>> Brian
>
>IIRC Ruffian 1.0.0 has a bug in pondering mode, which would explain why it runs
>fine in eng-eng matches (ponder=off) and why it would crash.  You can either
>download Ruffian 1.0.1 from the same site, or you can download it with Arena at
>www.playwitharena.com
 Thanks for the speedy reply and explanation.
I already have Ruffian 1.0.1 but I found that 1.0.0 did much better in an engine
tournament than 1.0.1.
I need to run more tests.
At the moment I am running an engine tournament between Ruffian 1.0.0 vs Fritz 8
on an AMD Athlon XP 2600+ 1 GIG DDR SDRAM
Game 30 (No increments)Hashtables set at 256 MB Ponder Off Both using the Fritz
8 opening book. At this very moment Ruffian thinks it is winning as white with a
+-(2.93)evaluation while Fritz 8 thinks it is behind by only +-(1.62) Earlier on
Fritz 8 had it as almost even, while Ruffian had it as +-(1.50).
Now the game is won by Ruffian K+R+p+p vs K+R.
Is Ruffian 1.0.0 really that good in comparison to Fritz 8 or is this only
because I am running the test on the same computer rather than identical
computer vs identical computers? I always thought that having ponder off, even
though it off for BOTH engines, affects some engines more negatively than
others. I believe that Ponder on is an integral part of some programs.

All views on this would be greatly appreciated.

Brian




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