Author: Tony Werten
Date: 01:29:58 05/13/04
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On May 13, 2004 at 03:35:00, Daniel Shawul wrote: >Hello > >My search is fail soft(i return the actual score) >when i fail high at the root i widen the window by 3 pawns (300). > > if(score<=r_alpha) > { > r_beta=r_alpha; > r_alpha=score-300; //r_alpha = -MATESCORE; > } > else if(score>=r_beta) > { > r_alpha=r_beta; > r_beta=score + 300; //r_beta = MATESCORE; > } >If the search fail's high at 1.75 score but the real score was 10 >i get a score of 4.75 (1.75 + 3) in the next iteration. Why? my search is fail >soft and the score returned should be independent of beta. If i change the 200 >to 300,score returned is 4.75?? Failsoft is not independent of beta, it's only less dependent. Tony
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