Author: William Penn
Date: 05:25:35 02/03/04
Go up one level in this thread
On February 03, 2004 at 01:25:17, Jouni Uski wrote: >On February 02, 2004 at 23:23:06, William Penn wrote: > >>On February 02, 2004 at 11:25:35, Chessfun wrote: >> >>>On February 02, 2004 at 11:04:03, Dmitri wrote: >>> >>>>Final result: >>>> >>>>Shredder 8 65.5/100 >>>>Fritz 8 34.5/100 >>>> >>>>Rating differance of +105 elo for Shredder 8. >>>> >>>>Conditions of the test: >>>>P4 2.4Ghz, 1Gb ram, 3-4-5 tb on, learning on, books own, book learn on, 128Mb >>>>hash, 60 min for the game all other param. set to default. >>>> >>>>Comments: >>>>Shredder seems to like closed positions more the Fritz and they are very much >>>>equal in open types of positions. Shredder is better at creating space and >>>>opening files then Fritz. The only weakness I can spot is it when it comes to >>>>the endgame phase. Fritz is a lot better in the endgame. Just try the position >>>>from the last game of human vs computer in corr. chess from www.chessfriend.com. >>>>Shredder does not like Qxb7 with perp check where as Fritz sees that it is the >>>>only way. >>>> >>>>I will not post games here so not to use up space, but you can email me for >>>>them. >>>> >>>>With regards, >>>>Dmitri >>> >>>This Shredder 8 is indeed clearly a very strong program currently I'm running it >>>at 40'40 and have the following scores after 48/150 >>> >>>v Shredder 7.04 +3-0=1 >>>v Deep Fritz 8 +2-0=2 >>>v Fritz 8 +3-1=0 >>>v CM9K +1-0=3 >>>v Tiger 14 +1-0=3 >>>v Junior 7 +2-1=1 >>>v Junior 8 +2-0=1 >>>v Crafty 1906 +1-0=2 >>>v Fritz 7 +2-1=0 >>>v Ruff 2.0 +1-0=2 >>>v Rebel 1201 +2-0=1 >>>v Deep Sjeng1.5 +1-0=2 >>>v Hiarcs 9 +2-0=1 >>>v Hiarcs Bar +3-0=0 >>> >>>Sarah. >> >>Thanks to both for the good information. I haven't run any scientific tests but >>have spent several hundred hours analyzing a wide variety of positions with >>Shredder 8. I am noticing (subjective) what appears to be a strong horizon >>effect with Shredder 8 in infinite analysis mode, which is the only way I use >>it. Under those conditions the moves don't seem particularly "intelligent" >>unless it is let go for several hours, a minimum of 4-5 billion nodes >>(positions), then it does indeed probably find the best possible move in most >>positions - except it doesn't seem very smart in endgames. I get the feeling >>that humans of average strength could probably beat it easily in some endgames. >>That's with an XP 2400+ computer at 2.0GHz and 1GB RAM (512MB hash), using the >>native CB Shredder 8 GUI on Windows XP Home. >>WP > >I disagree! S8 is just excellent in endgames and reaches stunning depths = >easily 20 - 30 ply in endgames. > >Jouni Is this a stunning endgame analysis? 5+ hours hours runtime (05:35:47) in infinite analysis mode, all 3-4-5 piece tablebases, XP 2400+ at 2.0GHz, 1GB RAM, 512MB hash, native CB GUI with all default settings [D] 3r2k1/5pp1/2RP3p/pp1p4/8/4P3/PP4PP/6K1 w - - 0 1 Analysis by Shredder 8: [snip early lines] 28.Kf2 f5 29.Ke1 a4 30.Ke2 Kf7 31.g4 fxg4 32.Rc4 dxc4 33.b3 axb3 34.Kd2 bxa2 35.d7 a1Q 36.h3 gxh3 37.Ke2 ² (0.67) Depth: 30/57 05:35:47 7919282kN, tb=472425 This is purely "giveaway chess"! WP
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