Author: Robert Hyatt
Date: 11:16:37 07/06/04
Go up one level in this thread
On July 06, 2004 at 14:09:39, Stuart Cracraft wrote: >Okay here's a new table with revisions based >on input. Now, higher effort and return numbers >mean more effort and return. And gone is the >value number replaced with Russell's return/effort >ratio. Have revised some numbers to try to fit in >with some opinions. > >The higher the third column the more that feature >gives in program performance for less work expended. > >EFFORT RETURN RETURN/EFFORT Feature >1 5 5 capture ordering >3 4 1.33 null move >4 4 1 null move with verification >4 4 1 search pv first >4 5 1.25 static exchange evaluator This can make a big difference. IE once you have a SEE procedure working, you can use it to reduce the size of the q-search by over 50%, doubling your search speed instantly. At very low risk. >4 5 1.25 transposition table >4 5 1.25 transposition table with 2-tier replacement >3 3 1 history heuristic, killers, other ordering >2 1 .5 aspiration >2 2 1 iterative deepening >2 2 1 pawn hashing w/ complex pawn evaluation >3 2 .66 capture extension >1 5 5 check extension >1 1 1 pawn to 6th/7th extension >3 3 1 futility >3 2 .66 razoring >5 3 .6 mate-at-a-glance
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