Author: John Merlino
Date: 22:50:37 04/26/04
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On April 27, 2004 at 01:31:30, Johan de Koning wrote: >On April 26, 2004 at 17:31:44, Theo van der Storm wrote: > >>On April 24, 2004 at 20:48:59, Johan de Koning wrote: > >>>More tomorrow, which is today locally, 7 hours to go, should sleep now ... >>> >>>... Johan >> >>Johan, >> >>You are going to be very late :-) > >Thanks for rubbing that in! > >Also thanks to the Hydranians, for letting me start with the full >90 minutes (rather than the 53 that were left), despite my warning >of imminient regret. > >>What I forgot to ask you: >>Who makes your book these days? >>I can´t find it in my(!) list of participants... > >I played with the default book of (soon to be realeased) Chessmaster X. >It used to be maintained by (the famous GM) Larry Evans. > >Note1: I do not know what kind of maintenance that was. I *guess* >his goal was to cover human theory (which is practice :-) as wide >as possible. John Merlino knows more, and if he's bored enough he >might dig up a few anecdoetes. :-) Well, I would say that the MAIN anecdote I can dig up is that Larry did NOT maintain the CM9000 book! It was our INTENTION to have him do it, but he graciously begged off (not exactly at the last minute, however). So, since we wanted a newer, larger, better book for CM9000, I created it myself from a large database of super-GM games (much thanks to Dann Corbit for providing a large portion of them) and lots of fine-tuning of the import parameters until I was satisfied with the results. At least, from what I've heard, the CM9000 book isn't as poor as the ones in CM8000 and previous.... ;-) >Note2: I do not know if it has been maintained since late 2002. Nor do I, unless the Romanian development team have done something with it. >Note3: My code scans the entire book for transpositions, finding >moves in lines that the CM GUI would never see. That is probably >not a good idea, since those moves could never have been reported >as bugs. Oh, good. Then I won't feel bad if TK played any horrible moves from the book in Leiden. :-) jm
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