Author: Tord Romstad
Date: 04:21:06 12/23/03
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On December 23, 2003 at 01:19:52, Russell Reagan wrote: >On December 23, 2003 at 00:52:37, KarinsDad wrote: > >>Why are these better than other methods? > >The goal of choosing a method to represent a position is not to make it as small >as possible. There is really very little point in worrying about the size at all >unless you plan on creating a huge database of positions. The goal is to create >a representation that allows you to do things efficiently. The two most >efficient representations I'm aware of are bitboards and a 16x16 board, both of >which allow you to do some clever tricks. Another popular representation is a 64-element board array with table-based move generation, like in GnuChess and Diep. I gave this a try recently, but gave it up because it was no faster than my current 16x16 board, and because the memory requirements were too big. Tord
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