Author: chandler yergin
Date: 01:11:28 05/22/05
Go up one level in this thread
On May 20, 2005 at 16:43:35, Michael Yee wrote: >On May 20, 2005 at 13:24:29, chandler yergin wrote: > >>On May 20, 2005 at 12:26:50, E. Nielsen wrote: >> >>>On May 20, 2005 at 12:04:52, chandler yergin wrote: >>> >>>>Each move and its response is called a ply. For a specific instance only, as I noted. >>> >>>NO!!! There are two plies per move. :) >> >>As I said.. a move and it's response is one Ply; >>a single Move is 1/2 Ply. >>Sorry if that's too difficult for you. > >Actually, I also think there are 2 plies per move (or, equivalently, a ply is a >half-move). I agree.. > >From the FEN description in the PGN standard: > >http://www.very-best.de/pgn-spec.htm > >16.1.8 Halfmove clock > >The fifth field is a nonnegative integer representing the halfmove clock. This >number is the count of halfmoves (or ply) since the last pawn advance or >capturing move. This value is used for the fifty move draw rule. > >Or look at the last section here: > >http://www.brucemo.com/compchess/programming/minmax.htm > >A 1-ply search just means all the positions resulting from one (half)move from >the initial position. > >Michael > >>> >>> >>>as seen in the post by Bruce Moreland >>> >>>>can be solved in 40 moves (80 plies)... >>> >>> >>>Regards, >>>Eyðun
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