Author: Tom Kerrigan
Date: 19:59:22 04/12/00
Go up one level in this thread
In my experience, here's what happens: You search the initial position to 10 ply and play e4. Because of that search, there is a "9 ply" hash table entry for the resulting position. So when you start the next search, you do a 1 ply search(). It finds the hash table entry, sees that 9 > 1, and returns immediately. Then you do a 2 ply search(), same thing happens. Until you do a 9 ply search. So it's not necessary to keep track of which entries are still "good" because you start the search up again where you left off. -Tom
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