Author: Tim Mirabile
Date: 09:44:47 03/30/99
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On March 30, 1999 at 12:14:51, Bruce Moreland wrote: >So if you find a mate in 3 at a given node, and you are 9 plies from the root, >normally you score this as mate in 12, but this has the bugs you discovered. > >What you'd do instead is subtract the "9" from the score and store mate in 3 in >the table, and when you look it up later, and let's say you happen to be 2 plies >from the root, so you add this in to get mate in 5. This makes sense to me. The evaluation is mate in three regardless of how it is reached. When backing mate scores up the tree it makes sense to add a ply for each one you go up.
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