Author: Ren Wu
Date: 21:35:33 12/12/01
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On December 12, 2001 at 19:51:22, martin fierz wrote: >On December 12, 2001 at 19:28:02, Ren Wu wrote: > >>On December 12, 2001 at 18:31:14, martin fierz wrote: >> >>Thanks for sharing this. >> >>>aloha, >>> >>>there was a discussion about this, deep down in a thread about who is the best >>>chess programmer, so i decided share our experience here: >>> >>>thomas lincke (lincke_at_inf.ethz.ch) has generated an opening book for my >>>checkers program with a technique called dropout expansion. he wrote a paper on >>>this, i think. for checkers it works very well, my book is very close to what >>>you expect from reading human opening books. the book has 1.1 million scored >>>positions in, which gives me about 200'000 book moves. >> >>Do you have the link for this paper? > >unfortunately, only a paper link: >T.R. Lincke: Strategies for the Automatic Construction of Opening Books, Proc. >"Computer and Games" Conference, to appear in LNCS, Springer Verlag, 2001 > >but you could send him a mail and ask for a copy (see original post). Thanks. >> >>So the idea is to drop the losing iines when you have enough evidense? >right. of course, the whole thing is configurable, so "enough evidence" >can be whatever you think is needed. > >>>so, to conclude this post, i believe in automated book generation for games with >>>few good moves/position but i don't believe in it for chess. tom also used it >>>for awari to good effect. >> >>Yes, it is not easy to get this done right. >> >>>i don't know enough about chinese chess, i played a >>>couple of times in beijing, but more for fun :-) >> >>Did you win any game at all? One of my best friend at England, he happen to have >>same first name as you and probably same chess rating, once told me that someone >>have taught him play chinese chess, and he be able to beat his teacher in first >>game. really funny. > >i won one game, but lost the rest (5 or 6) - it's hard to get used to the >chinese symbols on the pieces, and i never could get used to the fact that in >CC, one knight can attack another but not be attacked by it, and that kings >cannot move out of their castles - i was checkmated by a girl when i was >winning, because she put a rook just beside my king - i forgot i couldnt take it >:-) > >cheers > martin That's pretty good, very interesting also. Ren.
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