Author: Tord Romstad
Date: 08:07:17 08/10/04
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On August 10, 2004 at 10:26:12, Andrew Williams wrote: >On August 10, 2004 at 08:38:28, Tor Lattimore wrote: > >>Hi. >>I recently converted my program to MTD. It's working quite well and performing >>just a tad better than the old alpha-beta with pvs + hash ec cetera... >>my question is, what sort of drivers are people using, with what sort of steps? >>I have been fiddling arround, with a little success, just interested to know >>what others do. >>Cheers >>Tor > >Mine goes up or down in increasing steps up to size 7. I've tried all sorts of >things over the years. What works out best will vary with the nature of your >evaluation. I increase the step size all the way up to a pawn. When the direction of the search changes (i.e. when the search fails in a different direction compared to the previous searches), I reduce the step size to 1 again. I agree that the optimal approach will almost certainly depend on the program. Tord
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