Author: Uri Blass
Date: 02:25:43 12/04/05
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On December 03, 2005 at 23:39:19, chandler yergin wrote: >All expressions of great Joy. >"Eureka cried the ancient Philosopher! The religious have an Epiphany! >I just had another Beer.. and it came to me! >I finally understand.. (I think) what you guys are doing, and want to do better. >(If I don't I'm sure you'll tell me. >;) >You need a way to Test your Engines; and Tweak them and have irrefutable >evidence of performance. In other words, a "Benchmark"; a Baseline for >comparison purposes. >Most of you use Test Positions! The problem there is, that every Engine will >evaluate a poition differently. >What is the one thing in Chess that will never change? >What is the one Constant that will never change? > >The number of "possible" moves at various Ply Levels! >Here they are: > > 0 1 >ply 1 20 >ply 2 400 >ply 3 8890 >ply 4 196812 >ply 5 4838258 >ply 6 118251225 >ply 7 3162798012 >ply 8 84029997363 >ply 9 2403434332264 >ply 10 68265214423776 >ply 11 2058141026024096 correct numbers can be productive for programmers to check bugs but your numbers are not correct A table of perft results for the start position: 1 20 2 400 3 8,902 4 197,281 5 4,865,609 6 119,060,324 7 3,195,901,860 8 84,998,978,956 9 2,439,530,234,167 10 69,352,859,712,417 Source http://homepages.caverock.net.nz/~peter/perft.htm Note that I do not plan to respond to every post that I disagree with you and it is a waste of time if you try to teach people in subjects that they know more than you. Uri
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