Author: Robert Hyatt
Date: 10:21:59 04/28/03
Go up one level in this thread
On April 28, 2003 at 12:02:08, Uri Blass wrote: >On April 28, 2003 at 11:51:47, Robert Hyatt wrote: > >>On April 28, 2003 at 11:30:08, Charles Worthington wrote: >> >>>That's an interesting question but I have one of my own. Is not the engine's >>>choice of continuations based soley on its eval of the line? >> >>Yes it is. However, You could take the source for Crafty, and at the top >>of Evaluate() where it computes the material score, you could add PAWN_VALUE*2 >>if white is on move, or subtract it if not, and it won't change a thing as far >>as the best move and the PV. The alpha/beta search simply maximizes the score, >>having no idea what the score really means... > >It can change because if Crafty has positive evaluation then it may avoid draw >by and lose the game(I assume that people who talk about over optimistically >evaluation do not mean to change the score for draws otherwise it is really >meaningless to change the evaluation). > >Uri >Uri Not necessarily. The score for _draws_ can also be skewed by +2.0 so that nothing changes with respect to draw vs non-draw...
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