Author: Andreas Stabel
Date: 04:00:34 10/02/01
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On October 02, 2001 at 06:48:12, Uri Blass wrote: >On October 01, 2001 at 18:21:09, Dann Corbit wrote: > >>On October 01, 2001 at 18:11:10, robert flesher wrote: >> >>>It has been calculated that the four opening moves can be made in 197,299 ways, >>>leading to some 72,000 different positions. The approximate numbers of different >>>games possible is 25x10 to the power of 116. a number astronomically higher that >>>the number of atmos in the observable universe. This Quote was directly taken >>>from Guiness book of world records 1976 edition. WOW and this is why chess is so >>>damn hard. :) >> >>Unfortunately, they don't know what they are talking about. >>There are 197,281 different ways to make the 4 opening moves. >>There are 99,270 distinct positions at ply 4 (including e.p vulnerability). >>The other numbers are equally suspect. >>This has some interesting information: >>http://www.clark.net/pub/pribut/chessfaq.html >>Though the actual length of the longest possible game may be open to a bit of >>debate. I have seen slightly different figures given elsewhere. > >For some reason I get an error message when I try to reply to andreas > >He said that his program get different information >He is wrong at least for 197,281. > >His program does not give the number of ways to play 4 plies but the number of >way to play at most 4 plies. > >If you substract the number of ways to play at most 3 plies from the number of >ways to play at most 4 plies you get exactly 197,281 by his program. > >Uri You are right Uri - nice that we agree on that number at least :) But my number of unique positions reached after 4 ply which is 77796 total or 77796 - 5783 = 72013, for ply 4 only, does not match. Regrads Andreas
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