Author: Shep
Date: 00:18:43 08/10/99
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On August 09, 1999 at 14:19:04, Brian Smith wrote: >I think the Selective Search works this way: > >Example: Search at 4/12 ply > This means that CM searches all possible moves for the next 4 moves (brute >force) and then selective search (not all possible moves) to the 12th ply--4 >brute force + 8 selective search. Of course, like any other program CM uses >extensions. If there is a capture for example, or a mate threat, or whatever >else extensions there are in TheKing (the extensions, of course, are pretty >complex) then it extends the search beyond the 12th ply. Exactly. (But as I said, this "8 ply selective" does not necessarily mean you have SS set to 8.) The "x/y ply" above would be displayed as "y/z ply" by other programs. The first number is indeed the brute force search, as can be seen by setting SS=0 (CM would then only show "5/5", "8/8" etc.). I only wish CM would also show its maximum selective depth. I wonder if "Max Depth=20" means "no lines deeper than 20 ply" or "no lines deeper than brute force + 20 ply" (which would expand to 24 in your example) or "no lines deeper than ordinary selective depth + 20 ply" (meaning 32 in your example)... --- Shep
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