Author: Andrew Williams
Date: 14:55:23 08/27/00
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On August 27, 2000 at 17:41:07, Dan Newman wrote: >On August 27, 2000 at 08:54:51, Brian Richardson wrote: > ><snip> >> >>One awkward thing for me right now relates to predicted moves. Generally, if >>Tinker ponders for longer than the normal next move search time and the >>predicted move is made, then Tinker moves immediately. Unfortunately, the score >>and PV from the pondering are lost and bogus values are reported from the >>abnormally short search. This is annoying when reporting, and a real problem >>when going back to do position learning. I am thinking of just saving the >>pondering search results separately for these cases. Any other suggestions? >> > >What I do for pondering is just do a normal search with the time limit set >to "infinite". Then when the opponent's move comes in I either break out of >the ponder search and start a new search (in case his move is different from >the predicted move), or I just set the time limit and continue searching >without breaking out of the ponder search. If the time has already expired, >the search will immediately terminate as it ordinarily does when it runs out >of time, with the full PV and so forth retained. Of course the code that >does all this is one of the ugliest parts of my program, very difficult to >debug, and I don't entirely understand it :). > Everything you say here applies equally to my program too. >>The situation is similar but worse when there is only _one_ legal move, which >>Tinker makes immediately. I was reporting the raw root eval(), but this caused >>Tinker to resign a KNNvK game (which Tinker had seen was drawn according to >>EGTB's). I suppose EGTBs should be checked too. >> > >Mine does this too. I end up without any ponder move for the next go, so my >program just sits there waiting... I plan to add somthing that will find a >ponder move when there is none, but just haven't gotten around to it. > If there's only one legal move, PostModernist just does a depth 4 search, then returns. This way I get something to ponder. Andrew >-Dan. > >>Finally, a different format would apply to book and/or learning moves, of >>course. I'll raise the issue even though Tinker _still_ has no book. >> >> >>Thanks, >>Brian
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