Author: Steve Maughan
Date: 03:26:52 11/26/01
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The answer lies in the structure of the programs and the evaluation functions. The King aka ChessMaster evaluates the control of each square on the board. This information is useful for guiding the search and using in the evaluation function however it's expensive to compute. You can also see this with Phalanx which can triggers a deaper search from within the evaluation function - i.e. the evaluation says that the position is not stable so search another ply deeper. In contrast you can get some programs (Goliath) that use a piece-table evaluation and rely on Null Move and some simpler extensions to get by. These are fast - it's probably not fair to say they are dump since they get their knowledge from the seach. Just a different way of "skinning the cat". Regards, Steve
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