Author: Mike Byrne
Date: 05:00:38 12/21/05
Go up one level in this thread
On December 21, 2005 at 06:41:47, George Tsavdaris wrote:
>>
>>Given such a huge difference in score, I would begin to suspect a bug in Rybka's
>>implementation of "sd=1".
>>
>>I find it hard to believe that Rybka's evaluation (which is all that is being
>>tested here, since the entire search algorithm should be rendered useless with
>>"sd=1") can solely account for an increase in 400 ELO over Zappa, Shredder, et.
>>al.
>
> I played a couple of games against Rybka beta,Shredder 8, Deep Fritz 8,
>TheKing3.23,Fruit 2.2.1 and Junior 8 at depth=1 for programs and 5'/40 = 7.5
>sec/move for me.
>
> It's clear that Rybka uses the same time (time=0 seconds as GUI reports,
>actually that would be a fraction of a second and the GUI reports 0) as other
>engines. Clear not only because the GUI reports it, but mainly because i can
>judge and compare from the games.
>
>What is happening:
>
>Me - Shredder 8 = 4-0 (own book)
>Me - Deep Fritz 8 = 4-0 (own book)
>Me - The King 3.23= 4-0 (Hiarcs8 book)
>Me - Deep Junior 8= 3-1 (own book)
>Me -Fruit 2.2.1 = 4-0 (own book)
>Me - Rybka beta = 2-2 (Tiger book)
>
>I can't believe it! Rybka played much better and this can been seen from the
>results of course. I couldn't beat it 2 times at depth=1.....!
>I don't know how Rybka does this?!?!?
It is unvelieveable how dominating Rybka is at sd=1.
Here'a quad in process at tc ==1/1.
Again, Rybka is dominating the field at this short time control. Rybka is oneof
these programs that appears to play well at all tc's but especially strong at
short tc. Ideal candiate for weaker processors, ie, it is great candidate for
pocketpc or dedicated units.
Best,
Michael
Engine Score RyToGFRuZaFrAnShDeCrSOHe S-B
01: Rybka v1.0 Preview.x64 9.0/11 · 1 = 0 1 1 = 1 1 1 1 1 41.00
02: Toga II 8.0/11 0 · 0 1 1 = 1 1 1 1 = 1 35.75
03: GFruit-4bx 7.0/10 = 1 · = 0 1 = 1 1 = 1 33.25
04: Ruffian 2.1 7.0/10 1 0 = · 0 1 1 = 1 1 1 30.75
05: Zappa 6.5/10 0 0 1 · 1 1 = 1 0 1 1 26.00
06: Fruit 2.1 5.0/11 0 = 1 0 0 · = 1 0 0 1 1 20.50
07: AnMon 5.50 5.0/11 = 0 0 0 0 = · 1 0 1 1 1 18.00
08: Shredder 9.1 5.0/10 0 0 = = 0 0 · 1 1 1 1 17.25
09: Deep Sjeng 1.6 4.5/10 0 0 0 = 0 1 1 0 · 1 1 15.50
10: Crafty64 4.0/10 0 0 0 0 1 1 0 0 · 1 1 13.50
11: SOS 5.1 for Arena 1.5/11 0 = = 0 0 0 0 0 0 0 · = 7.75
12: Hermann 1.5 0.5/11 0 0 0 0 0 0 0 0 0 0 = · 0.75
63 of 264 games played
Name of the tournament: RoundRobin3
Site/ Country: WIN-64-MB, United States
Level: Blitz 1/1
Hardware: Dual AMD Opteron(tm) Processor 244 1804 MHz with 2,046 MB Memory
Operating system: Microsoft Windows Server 2003 Professional Service Pack 1
(Build 3790)
Interesting to note that the top engines here thus far are all relatively new!.
Ponder is off in this tournament with common book for all.
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