Author: chandler yergin
Date: 02:22:09 05/22/05
Go up one level in this thread
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 >>> >>>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. >> >>chandler, >> >>You are wrong. I know of no one who uses the definition you are using. Not that >>it is difficult to understand what you are saying; it is just that what you are >>saying is not remotely correct. If you think otherwise, please site a specific >>instance of anyone authoritative stating the nonsense you are spouting. >> >>-Robin > Here's a place to start! > You can apologize at your leisure.. > >http://www.rci.rutgers.edu/~cfs/472_html/Intro/NYT_Intro/ChessMatch/ToTest.html >Quoting: > >"From the point of view of a computer, the difference could not be more >profound. Because of the tight constraints in how chess pieces can be moved, a >player is faced with an average of only about 35 legal moves to consider with >each turn. Computer programs like Deep Blue analyze these moves, considering the >opponent's possible countermoves, and then the countermoves to the >countermoves." > > "In computer chess terminology, each move and its response is called a ply." > > "The fastest chess programs look ahead seven or eight plies into the game. >The result is a densely proliferating tree of possibilities with the branches >and twigs representing all the different ways the game could unfold. Looking >ahead just seven plies (14 individual chess moves) requires examining 35 to the >14th power (more than a billion trillion) leaves representing all the various >outcomes. >As the computer tries to look deeper, the number of possibilities explodes. >Programmers have learned clever ways to "prune" the trees, so that all but a >fraction of the paths can be discarded without plumbing them all the way to the >bottom. Even so, a chess-playing computer looking ahead seven plies might >consider as many as 50 or 60 billion scenarios each time its turn comes around. >As bad as that sounds, in Go the situation is drastically worse."
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