Author: Matthew White
Date: 15:45:39 05/29/03
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On May 29, 2003 at 18:35:12, Ryan B. wrote: >Both HD space and probing time are restricting factors in what I think you are >asking for. For the time you waist probing your end game book in mid game your >opponent is productively searching moves. For now I believe the best way to >handle end games is to have a different eval functions for different stages of >the game and pry for a smooth transition from late mid game to end game. > >-Ryan Here's the thing, though: if book positions are already loaded into a hash table, then there is no disk access. Hard disk space doesn't really seem problematic in this case either: after all, endgame tablebases take up huge amounts of space, and yet we continue to use them even though they are only helpful in a very small number of cases. Prayer doesn't seem like a very good answer, and though I agree that there should be a different eval function for endgame and middlegame, the eval is sometimes nearly impossible to get right in endgame situations: material is sometimes totally unimportant, and the difference between moving the king one square or another can mean the difference between a win and a loss 30 moves later. Matt
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