Author: milix
Date: 02:26:50 03/17/04
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On March 17, 2004 at 04:58:06, Peter Alloysius wrote: >what are tricks for evaluation tuning so that it could >search less nodes? > >i noted that my engine use exactly same move ordering scheme as >crafty but it still search much more nodes. >my engine also use adaptive null move, and futility pruning. > >so i think the problem is on evaluation tuning. >i heard that tuning evaluation function can reduces node searched, >so what's the trick? I think that there is no special trick. A bad evaluation will missguide the search. When I turn off the positional evaluation (and have only material+piece square scores) my engine is doing too many researches and the move ordering is also very bad. Same effect if I alter a positinal characteristic too much, like giving a very big bonus in advanced pawns or penalize bad king safety too much.
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