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Subject: Re: 1-0 The Miracle of the Little Beast CTP 14.9 vs SJeng 12.11

Author: Jorge Pichard

Date: 20:39:16 04/06/02

Go up one level in this thread


On April 06, 2002 at 23:06:26, Uri Blass wrote:

>On April 06, 2002 at 22:55:19, Jorge Pichard wrote:
>
>>On April 06, 2002 at 22:36:00, pavel wrote:
>>
>>>On April 06, 2002 at 22:27:24, Uri Blass wrote:
>>>
>>>>On April 06, 2002 at 22:13:17, Uri Blass wrote:
>>>>
>>>>>On April 06, 2002 at 21:43:08, Jorge Pichard wrote:
>>>>>
>>>>>>SJeng 12.11 is playing without TB to make it fair since Chess Tiger 14.9 doesn't
>>>>>>use TB. Even with TB SJeng would have lost this game regardless. Uri is right
>>>>>>this SJeng is a tought opponent with an estimated rating by its author close to
>>>>>>2400 in standard time control.2. What is Sjeng's status ?
>>>>>>
>>>>>>PS: Simply consider this a Pearl of a game, Simply an Amazing Performance!
>>>>>>
>>>>>>
>>>>>>It has successfully beaten players rated over 2500 points, including several
>>>>>>titled GM's and IM's. One version of Sjeng even attained the first place in the
>>>>>>crazyhouse players list on the Internet Chess Club (ICC), and the first place on
>>>>>>the Free Internet Chess Server (FICS). Its crazyhouse rating currently
>>>>>>fluctuates around 2300 points.
>>>>>>Sjeng is probably a bit weaker in bughouse than it is in crazyhouse. Most
>>>>>>Sjeng's on the FICS have a rating of about 2000 points in bughouse, with a top
>>>>>>of over 2200 points.
>>>>>>
>>>>>>For standard chess, Sjeng's rating is probably about 2400 ELO. In suicide and
>>>>>>losers chess Sjeng beats all but the very best humans, and will beat
>>>>>>non-specialized programs easily.
>>>>>
>>>>>It seems strange to me that sjeng gets only depth 4 or 5.
>>>>>I know that we cannot compare depthes of different programs but
>>>>>programs usually get bigger depths and even the weak movei on celeron gets
>>>>>usually depth 7-9 at that time control.
>>>>>
>>>>>Uri
>>>>
>>>>I can add that sjeng can search clearly deeper in the middle game based on the
>>>>following post.
>>>>
>>>>http://www.it.ro/ccc_search/ccc.php?art_id=198392
>>>>
>>>>I know that the hardware is better and that sjeng is an older version and the
>>>>positions are different but still sjeng could get depth 8 in a few seconds.
>>>>
>>>>I suspect that your celeron was slowed down by a significant factor so sjeng did
>>>>not enjoy from a significant speed advantage that the celeron should give it.
>>>>
>>>>Uri
>>>
>>>At this time control (40/40) the depth does seem very odd, even for the most
>>>slowest program out there. At this depth, not is it right to compare sjeng with
>>>CTP 14.9, Sjeng actually more crippled than CTP in a handheld.
>>>
>>>pavs
>>
>>I downloaded the SJeng v12.11 now what version do you suggest?; there doesn't
>>seems to be nothing wrong with my Celeron since it is the same one that I have
>>been using with Movei From Uri, Bestia, Faile, and Gaviota. If you can suggest
>>the best version of SJeng then I will use it. Just give me the website where I
>>can find the best Version.
>>
>>Pichard.
>
>I believe that 12.11 is good and I do not know the problem(A possible reason
>that I can think about is if sjeng is using too much hash tables that the
>celeron does not have and I know that using big hash tables that the computer
>does not have can cause programs to use the harddisk and be significantly
>slower)
>
>Movei does not use hash tables so there is no problem with it.
>Faile's default hash tables is 8 Mbytes so I believe it has no problem.
>Maybe Sjeng's default hash tables is too high for your celeron.
>
>Uri

That could be the problem, since the hashtable size by default was set for 12
Mbytes. I will replay the same opening up to 4 moves with the Hashtables set for
6 Mbytes and this time I will use the endgame tablebase with a cache set for 4
MB.

Pichard



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