Author: Pierre Bourget
Date: 06:33:40 08/31/01
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On August 31, 2001 at 07:49:28, Ed Schröder wrote: >On August 31, 2001 at 06:52:58, Uri Blass wrote: > >>On August 31, 2001 at 05:06:49, Kim Roper Jensen wrote: >> >>>Yes, Ed this is the position I wanted, Thanks !! >> >>I am surprised to read that this position is from Deep thought-deep blue game. >>I read about this position in the past but had no idea that it is from Deep >>thought-Deep blue games > >The description of the position in my database says it is. It could be >wrong of course. The date says 1994. > > > >>You claimed that there were quiet moves and if it is the position then it seems >>to be wrong because I know that chess playing programs usually have no chance to >>find long mates with quiet moves when this position is solved by more than one >>program. > >Bf6 is a quiet (non-checking) move. > >Ed I think this position is an example of CHIPTEST speed ,the predecessor of Deep Thought ,i found this quote on this link at the bottom of the page : http://www.insight.demon.co.uk/Computer_chess/Graham/formcmp.htm "Singular extensions were first used in the chess computer CHIPTEST (Anantharaman et al. [1990]). In one example, CHIPTEST was able to find a forced checkmate in 18 moves (35 plies) in 65 seconds on a nominal 8-ply search." Pierre
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