Author: Uri Blass
Date: 11:23:23 12/23/00
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On December 23, 2000 at 14:10:01, Tania Devora wrote: >On December 23, 2000 at 12:44:52, Robert Hyatt wrote: > >>On December 23, 2000 at 12:25:18, Uri Blass wrote: >> >>>On December 23, 2000 at 09:01:29, Joshua Lee wrote: >>> >>>>this is over a google and even if your program could search at 5 trillion nodes >>>>per second it wouldn't solve chess in your lifetime. >>>> >>>> 64^64 is one number that comes to mind 3.9402006196394479212279040100144e+115 >>> >>>The number of leagl positions is clearly smaller than 64^64. >>> >>>I do not understand why do you think about 64^64. >>> >>>Uri >> >> >>I still think 10^120 is a reasonable estimate, because a position is not just >>made up of the pieces on the board. It _also_ includes the game history up to >>that position, because of 50 move and repetition considerations. The _same_ >>position can occur with many different game histories, and each of those >>positions would be unique as far as the game of chess goes. Thinking about it, >>10^120 might be off by a few hundred zeroes, in fact... > > > > >Anybody can write how many numbers are 10^120? I dont have idea how many is >that. Thanks. It is 1 with 120 0's after it. Here is the number 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 You need more than 10000000000000000000000000000000000000000000000000000000000000000000000000000000years in order to do 10^120 calculations even if you use the simplest calculation and the all the computers and the super computers that are in the world. Uri
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