Author: Robin Smith
Date: 20:38:16 05/23/05
Go up one level in this thread
On May 22, 2005 at 20:40:22, chandler yergin wrote: >On May 22, 2005 at 17:44:36, David Mitchell wrote: > >>On May 22, 2005 at 06:08:42, chandler yergin wrote: >> >>>On May 22, 2005 at 05:30:44, Günther Simon wrote: >>> >>>>On May 22, 2005 at 05:22:09, chandler yergin wrote: >>>> >>>>>On May 22, 2005 at 04:41:24, chandler yergin wrote: >>>>> >>>>>>On May 20, 2005 at 22:15:59, Robin Smith 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. >>>>>>>>> >>>>>>>>>NO!!! There are two plies per move. :) >>>>> >>>>>Do you disagree with this? >>>>>1. e4 is a move = 1 Ply >>>>>2. e5 as a response is 1 move = 1 Ply >>>>> >>>> >>>>gosh...of course this is wrong! >>>>1 ply = 1 _half_move and 2 plies are 1 move, >>>>time to get this. >>>>That's why it is 1.e4 and 1...e5 ;-) (not 2...e5) >>>> >>>>Guenther >>> >>> 1. e4 e5 you consider to be one move? >>>For Notation purposes yes, I agree >>>White makes a move = 1 Ply >>>Black responds with a move = 1 Ply >>>So for each move and response = 2 Ply. >>>OK? >> >>Actually, you're both right! >> >>The GENERAL meaning of "move" in FIDE regs is simply "a king can not move into >>check", etc. One player's moving of a piece, constitutes one move. I believed >>that would be called a "half move", but I just went to FIDE and it's called a >>move, period. >> >>However, there is another meaning for more specific meaning of "move", which I >>can not find in the FIDE regs., but is understood by chess players to mean, >>oddly enough, a pair of moves. >> >>So, 1. e4 is a general move, (normally easily told apart from the specific >>meaning of "move" by the context), however, 1. e4, e5 is also ONE move. With the >>latter clearly being TWO ply. >> >>Dave > >http://www.chessbase.com/support/workshop.asp?ID=235 Chandler, Thanks for making my point; from the link you quote: "The difference here is that the engine now adds a new line each time it completes a ply of the search; i.e. when the search depth is increased by one ply (half move), a new line is added to the display." QED -Robin
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