Author: Paul Byrne
Date: 19:41:31 09/21/03
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On September 21, 2003 at 04:43:18, Edward Seid wrote: >On September 21, 2003 at 01:00:37, Paul Byrne wrote: > >>Anyways, to give you an idea how solvable this game is or isn't, >>I left it running on this position last night: >> >>[D]8/1pppppp1/8/p6p/P6P/8/1PPPPPP1/8 w - - 0 3 >> >>with this result: >... >>mv=e4 e=273 d=24 n=1318190910 t=13610.508 >>mv=e4 e=9969 d=25 n=-1677339015 t=26967.618 >> >>So about 7.5 hours to solve this. > >So according to this result, after 7.5 hours, 25 ply and 1.67 billion nodes, e4 >wins in this position? Are you 100% certain that e4 wins, or is there a chance >that a refutation exists at a deeper ply? And by symmetry, I guess d4 wins >also? >Was the engine that produced this result using the 100x speedup trick? The node count is all wrong -- too big for a 32 bit int. And I am 99.99% sure e4 wins (and d4) -- unless I got a really nasty hash collision or something. And yes, this includes the speedup trick.
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