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Subject: Re: How many chess positions or moves exist in chess???

Author: Vincent Diepeveen

Date: 17:35:51 12/24/00

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On December 24, 2000 at 15:46:00, Terry McCracken wrote:

>On December 24, 2000 at 11:30:00, Hans Havermann wrote:
>
>On December 22, 2000 at 13:34:46, Terry McCracken wrote:
>
>Again I quote Dr. Davidson: " Kasner and Newman estimate that the total of
>possible moves in a game of chess is 10 to the power ( 10 to the 50th ).
>This a figure for which we have no name...
>
>Rudy Rucker (Mind Tools, 1987) suggested the name Nplex for the number 10^N.
>John H. Conway and Richard K. Guy (The Book of Numbers, 1995) recommend its use.
>Thus, the name of that number would be 'fiftyplexplex'.
>
>
>Of course I was quoting from an old source, but it's nice to know a name/s have
>been assigned to astronomical numbers!
>
>Come to think of it, I believe I heard on Back to The Future III 10 years ago "
>1 in a Googleplex " was used by the professor when reffering to the woman
>he fell in love with back in 1885;)

I think in JICCA of a few years ago that number was already
brought down to 10^43

After reduction of all positions with more as 2 queens we are already
down to 10^40 then easily.

Personally i have to see the first relevant game position with more as
2 queens on the board, but i need to really note that for chess problemists
always toying with less as 2 queens is not an option.



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