Author: Keith Ian Price
Date: 22:18:14 01/15/06
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On January 16, 2006 at 00:57:35, Uri Blass wrote: >The reason is simple. >It is known that many programs simply evaluate repetition as a draw and rybka is >one of them(many programs are going to see a draw in the same conditions). > >It is the simple solution to the problem of avoiding repetitions. > >programs of course can evaluate only 3 time repetition as a draw but it may >cause them to search bigger trees for no good reason so it is not clear if it is >better for playing strength. > >programs that evaluate first repetition not as a draw may waste time by allowing >repetitions and in some cases it even may cause draw by the 50 move rule because >in superior position they may not be able to be lucky to find the right plan on >time when avoiding repetition may force them to find the right plan if they >evaluate first repetition as a draw. > >I choose to evaluate first repetition as a draw because when I have 2 options >when it is not clear which one is better I prefer the simpler option. > >Uri Well, I thought that might be the case, but why does the 32-bit version evaluate it as losing, while the 64-bit version thinks it's a draw. And should the program evaluate a non-forced repetition as a draw, if it is so far behind? kp
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