Author: Uri Blass
Date: 07:21:21 01/06/06
Go up one level in this thread
On January 06, 2006 at 07:19:47, Joseph Ciarrochi wrote: >If you run tournments limiting ply to 3, Rybka absolutely kills fruit and >fritz9. >Rybka sure forms a good first impression.:) > > > > > > 1 2 3 >1 Rybka 1.0 Beta 32-bit **** 94.0 - 7.0 94.5 - 6.5 >189.5/203 >2 Fritz 9 7.0 - 94.0 *** 58.5 - 42.5 >77.0/220 >3 Fruit 2.2 6.5 - 94.5 42.5 - 58.5 ** >55.5/221 > > > >These numbers seem so imbalanced. I wonder if there is not some sort of bug in >the fritz gui or something. > >best >Joseph Your title is misleading so I changed it in my reply. My opinion is that Rybka searches x+2 plies when it claims to search x plies. From my experience it can see at fixed depth of 1 ply things that other programs see at fixed depth of 3 plies Here is an example [D]3k2r1/ppb5/3p4/r2N1p2/8/8/1P6/1K2RB1R b - - 0 1 [D]3k2r1/pp1b4/3p4/r2N1p2/8/8/1P6/1K2RB1R b - - 0 1 Rybka does not capture the knight at depth 1 in the first case but capture the knight ar depth 1 in the second case. Can Vasik explain why? evaluation? I do not believe it. It must be search and rybka search after Rxd5 Bc4 black move and see that in the first case no move save black from a loss of full rook when in the second case it searches Rxd5 Bc4 Bc6 Uri
This page took 0.01 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.