Author: Stuart Cracraft
Date: 11:09:39 07/06/04
Go up one level in this thread
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 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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