Author: Tony Werten
Date: 02:32:18 05/13/04
Go up one level in this thread
On May 13, 2004 at 05:06:03, Daniel Shawul wrote: >On May 13, 2004 at 04:34:36, Volker Böhm wrote: > >>Hi, >> >>if (r_beta == 4,75) and the real score is 10,00 the fail-soft score can be >>anything between 4,75 and 10,00. >> >>Any returned value >= beta will immediately result in a cutoff and return the >>current best score. The alphabeta algorithm will not check if there are other >>moves with higher score. >> >>Thus in your example at some ply there is a move tried first that returned 4,75 >>and the best move which would return 10,00 is never checked. > > That's is a fine explanation. But whatever margin i use >2.0 , 2.33, 3.45 etc the score i get is always (beta + margin). >Does this mean there is a (beta + margin) score somewhere in the tree?? No, it means there is a score>beta+margin in the tree, so you have to raise margin (again) to get the real score. Tony > >> >>Greetings Volker
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