Author: Reinhard Scharnagl
Date: 15:45:35 12/23/03
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On December 23, 2003 at 16:53:44, Dann Corbit wrote: >On December 23, 2003 at 16:35:02, KarinsDad wrote: > >>Another point is that you only need 62 bits to indicate piece/pawn location (the >>position of the kings is already known). > >With these two changes, you need a maximum of 166-4 = 162 bits to store a chess >position. Is that about what you had achieved befire? > >At any rate, it limits the maximum possible number of legal board permutations >to no more than: >2^162 = 5846006549323611672814739330865132078623730171904 possible positions. >(about 5.846e48) > >This does not (of course) take into account things like the half-move clock and >position repeat status. Today I estimated the number of all legal positions about 2.63 * 10**46 at [http://www.rescon.de/Compu/schachzahl1b_e.html]. But this might be not full mathematically exact, but I am working on it. Reinhard.
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