Author: blass uri
Date: 21:49:36 10/02/98
Go up one level in this thread
On October 03, 1998 at 00:22:11, Robert Hyatt wrote: >On October 02, 1998 at 21:24:51, blass uri wrote: > >> >>On October 02, 1998 at 20:47:47, Robert Hyatt wrote: >> >> >>>because crafty doesn't evaluate KPP vs K or KP vs KP as won, in that >>>position. >> >>KP vs KP is not relevant >>and I assume that KPP vs K is evaluated as at least 1 pawn advantage in every >>position even if the black king can get into the square of the white pawn. >> >>I understand now that you use crafty15.21 and not crafty15.20 so if my >>assumption is right then crafty15.20 will play Rxb2 with tablebases at depth=12 >>and you did an important improvement with the new extension stuff. >> >>Uri > > > >first, you are making a gross assumption when you say "KP vs KP is not >relevant". Remember that this is a deep search, full-width. So this particular >database gets hit about 10,000 times during my 12 ply search. I simply can see that white can force KPP vs K and there is no reason to go for KP vs KP(you can go to it by pusing your pawn forward instead of going with the king to catch the pawns but it is not the shortest way to win) Uri
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