Author: Dann Corbit
Date: 13:42:53 12/07/05
Go up one level in this thread
On December 07, 2005 at 15:43:35, Albert Silver wrote:
>On December 07, 2005 at 15:06:27, Steve Maughan wrote:
>
>I've let the SP profile ("slightly positional") continue its Nunn2 match this
>afternoon against Deep Fritz 8, noting that the default "Very Positional" style
>won 24-16. Right now, all I can say is the games are quite different, and it is
>giving DF a complete thrashing at the moment as it leads 20.5-6.5. It could very
>well be one of those style/opponent issues, but that's the score at the moment.
>
>N2-RybkaSP-DF8-10+2 2005
>
>1 Rybka 1.0 Beta 32-bit 2830 +15/-1/=11 75.93 20.5/27
>2 Deep Fritz 8 2780 +1/-15/=11 24.07 6.5/27
>
>
>
>You're quite right on a number of accounts, such as its pawn race evaluation,
>and the really bizarre endgame holes that crop up. I even saw it misevaluate a
>KP vs. K endgame that was a dead draw, and saw the eval far above +1. It is in
>one of the game I published below. Absolutely incredible results if you consider
>this you know. I'm not sure I agree about the shallower depth you allude to. The
>node count is clearly unreliable, and is only good to measure relative
>performance as opposed to other machines. I consider DF8 to be a fast searcher,
>and I don't see Rybka lagging behind in the plies it shows.
>
>In any case, it really boggles the mind that two amateur engines such as this
>could simply appear in a new version, and simply top the lists as they are
>doing. The last such instance I can recall was Theron's Chess Tiger 12, which
>was not widely available then.
Definitely, Junior was another such engine. I expect that many pro engines were
amateur at one time.
[snip]
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.