Author: Álvaro Begué
Date: 08:52:21 08/24/04
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On August 24, 2004 at 11:32:36, Anthony Cozzie wrote: >On August 24, 2004 at 11:29:42, Álvaro Begué wrote: > >> >>>>If I evaluate a position using the quiescence search and that returns "mate in >>>>5", how can I be sure that it's really a mate in 5 if the quiescence search >>>>hasn't explored all the possible moves? >> >>You are right: it is possible that there is a faster mate. >> >>>Q-search will never return mate in 5. >> >>Why not? If you include checks and check evasion, it can return mate in 5 with >>no problem. > >Most people don't do infinite depth of q-checks. I tried once and got a >selective depth of 61 on a 2 ply search, and then it crashed on the 3 ply search >;) You would not believe the stupid lines it was looking at . . . Yes, I have tried that type of thing myself. You can allow unlimited q-checks as long as you only consider checks with a single response.
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