Author: Duncan Roberts
Date: 12:41:09 01/08/05
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On January 07, 2005 at 17:12:37, Uri Blass wrote: >On January 07, 2005 at 10:33:39, Duncan Roberts wrote: > >>On January 07, 2005 at 10:02:15, Vincent Diepeveen wrote: >> >>>On January 07, 2005 at 08:12:52, Duncan Roberts wrote: >>> >>>If there would be material win for white within say 60 plies of search from >>>openings position then: >>> a) it would have been found already if winning for white by GM's and >>>especially by corr players. >> >>as only a small percentage of the positions possible withion 60 plies have been >>analysed by gms' it is by no means impossible that they have missed something >> >> >> Hell, even Uri Blass with his autistic logics could >>>figure it out. >>> b) when not winning for white black has some real great compensation >>> perhaps black has a mate in 2 or something which my evaluation sees >>> tens of plies in advance but your 60 ply beancounter will miss it >>> c) a 60 ply material only search will reveal nothing significant as the >>>position is only evaluated by material. >> >>well if there is a pawn to be taken in 60 plys, there is a good chance that the >>60 ply search will reveal it. It is useful to know that. black may or may not >>have compensation, but if you do not try you will not know. > >I can also add that there is a good chance that 60 plies search with null move >pruning will not detect pawn win in 60 plies and even will not detect pawn win >in 50 plies. > >Uri Do you agree with dann that there is more than even chance that null move pruning will find any material capture. care to hazard a guess about the percentage chance range null move is likely find the material loss. http://www.talkchess.com/forums/2/message.html?151581 duncan
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