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Subject: Re: Enhanced Transposition Cutoff

Author: Dan Andersson

Date: 20:24:03 07/28/04

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 A perfect move order is only one part of making a tree search consume less
nodes. The other one is to find the move that leads to less work. This paper
shows how the possible transpositions in the search graph makes for a much
smaller 'real minimal graph' that defines the value of Alpha-Beta search:
Exploiting Graph Properties of Game Trees, Aske Plaat, Jonathan Schaeffer, Wim
Pijls, Arie de Bruin
http://www.cs.vu.nl/~aske/Papers/abstr-aaai.html
 Page four shows how ETC helps in transposing the search graph. Thus shrinking
the tree.

MvH Dan Andersson



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