Author: Terry McCracken
Date: 18:10:38 05/21/05
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On May 21, 2005 at 13:17:43, chandler yergin wrote: >How many times do I have to Post this before you understand? > >http://stuffo.howstuffworks.com/first-time.htm?referer=chess1.htm > >In this tree, there are 20 possible moves for white. There are 20 * 20 = 400 >possible moves for black, depending on what white does. Then there are 400 * 20 >= 8,000 for white. Then there are 8,000 * 20 = 160,000 for black, and so on. If >you were to fully develop the entire tree for all possible chess moves, the >total number of board positions is about 1,000,000,000,000,000,000,000,000, >000,000,000,000,000,000,000,000,000,000,000,000,000,000, >000,000,000,000,000,000,000,000,000,000,000,000,000,000, >000,000,000,000, or 10120, give or take a few. >That's a very big number. >For example, there have only been 1026 nanoseconds since the Big Bang. >There are thought to be only 1075 atoms in the entire universe. >When you consider that the Milky Way galaxy contains billions of suns, and there >are billions of galaxies, you can see that that's a whole lot of atoms. That >number is dwarfed by the number of possible chess moves. >Chess is a pretty intricate game! >No computer is ever going to calculate the entire tree. > > What a chess computer tries to do is generate the board-position tree five or >10 or 20 moves into the future. Assuming that there are about 20 possible moves >for any board position, a five-level tree contains 3,200,000 board positions. A >10-level tree contains about 10,000,000,000,000 (10 trillion) positions. Yawn, I know this. What's your point stating obvious data?? > >Chess will never be 'solved' by Computers or Humans. >The amount of games humans can play is but a fraction of the possible >number of games. Any 'sample' size is only relevant to the Total played. >Humans do not play perfect chess, nor do computers. >A draw is but one possible outcome. There are 3! >Historically, White has the largest winning percentage. >Period! You're rambling, again!
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