Author: William Penn
Date: 20:23:06 02/02/04
Go up one level in this thread
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
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