Author: Dann Corbit
Date: 14:19:38 03/01/00
Go up one level in this thread
On March 01, 2000 at 17:05:13, Dave Gomboc wrote: >On March 01, 2000 at 13:53:57, Dann Corbit wrote: > >>On March 01, 2000 at 10:28:56, Dave Gomboc wrote: >>[snip] >> >>>Well, my computer resolved the fail high in twenty seconds or so. Odd. >> >>You have a multiple CPU machine (I think Bernhard does as well). I believe that >>sometimes you will get different move orderings because of this and solve early >>(or late). > >Yes. > >Occasionally Crafty does go on a "forever think", even on 1 cpu. I don't recall >versions from say a year ago doing this. I'm sure Bob would do something about >it if he knew of a good solution for it. Something somewhere must be blowing up >somehow (as if that description helps. ;-) On the other hand, I am not sure it needs fixing. Look at the recent CCC tournament where Crafty pounded the ether-bits out of all the competition, including the best commercial programs in the world on top-notch hardware. The check extension explosions almost never cause crafty to make the wrong move (that I have seen). If the timer fired and said "it's time to move now" it seems like usually, it would make the right choice. It's just a bit puzzled about exactly how good the choice is. Since "the proof of the pudding is in the eating" I'm not so sure it is a good idea to 'fix' anything.
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