Author: martin fierz
Date: 16:51:22 12/12/01
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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). > >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
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