Author: David Rasmussen
Date: 05:06:23 10/18/00
I was wondering about a potential "bug" or at least "unwanted feature" of the way hashing and extensions affect eachother in, say, Crafty. The problem is basically this: In Crafty, whenever depth is used for other purposes than searching (that is hashing and nullmove), the extension factor isn't included. That means that a search that essentially asked for a depth=5 + extensions=3 == 8 ply search, will return with success from the hashprobe if the draft is just 6 or 7. Shouldn't the depth parameter ALWAYS be used with relevant extensions for the search to be (at least more) theoretically correct ? Am I making sense?
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