Author: José Carlos
Date: 14:52:44 08/27/00
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On August 27, 2000 at 17:33:15, Tom King wrote: >Hi all, > >a question for programmers on fail highs. > >what do you do in your program if a fail high is encountered, which on the >research fails low? > >I've ignored this issue, because it doesn't seem to happen all that often (in my >program). So if my program finds a move which fails high, even if the research >indicates that it maybe shouldn't have failed high, it thinks the move is good. >Maybe this is bad? At the WMCCC recently, I noticed a couple of these fail high/ >fail low moves cropping up at critical, complex positions. Often I was unhappy >with the move my program chose in these cases. Perhaps these fail high/ fail low >moves need to be treated with suspicion? > >Cheers, >Tom In Averno, when I fh, and research with a new Alfa,Beta window, if I fail low in the research, I use Alfa as the eval of the position so, as it failed high before, it becomes the PV move, until a better move is found. Hope this helps :) José C.
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