Author: Robert Hyatt
Date: 07:14:39 03/08/01
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On March 08, 2001 at 05:08:03, Matt McKnight wrote: >oops, messed up that last post... > > I've been toying with some move ordering ideas, and I would like to hear some >feedback on them. > > First idea: > Inspired by the killers list, I tried keeping a list of two moves per ply >that seemed to be bad ideas, (score < alpha) and using that to sort those moves >in the future to the end of the list. This seems to give me a small gain. Is >this idea good, or will it cost me in some positions? > > Second idea: > Along with the history heuristic, how about sorting moves by the >positional gain they make? For instance: > score += piece_eval[to] - piece_eval[from]; You should already be trying captures _first_ in your move ordering. The above implies you are not, which is a bad idea. > >this also seems to help a little. Again, is it helping or not? > >Also, are these ideas dumb and old? > >Matt
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