Author: blass uri
Date: 14:14:28 03/01/99
Go up one level in this thread
On March 01, 1999 at 15:46:14, Will Singleton wrote: > >On March 01, 1999 at 12:28:07, Bruce Moreland wrote: > >> >>On March 01, 1999 at 05:50:44, Peter McKenzie wrote: >> >>>On March 01, 1999 at 04:48:28, Will Singleton wrote: >>> >>>>u2600 Position of the Week >>>>-------------------------- >>>> >>>>5R2/8/8/4rp2/3r4/5k2/2B1p2P/2K1R3 w - - >>>>ArasanX Amateur, 0-1, 1999.02.27, fics >>>> >>>>In this position, White played 78. Rg8 and lost. Could your >>>>program avoid that move within 10 seconds or so? The game might be >>>>lost in any event (not sure); there is still some play left. >>> >>>Rxf5 Rxf5 Bxf5 Kf2 Rxe2 is a dead draw (even without the pawn on h2) - the white >>>king is in the correct corner to easily draw this ending. Just play the king to >>>a1, and oscillate the bishop between b1 and a2 :-) >>> >>>It takes LambChop 28sec to lock onto Rxf5 (at depth 8) using a P133 searching >>>about 20K nps. >>> >>>Peter >> >>Yes, R vs B knowledge helps with this. 1. Rxf5 is a draw. >> >>bruce > > >Well, that's an unexpected result. I ran this on Hiarcs, and after the >continuation (as above), it still has white down well over a pawn. > >So that begs the question, does Lambchop or Ferret actually see that the >position is drawn? Can a tablebase tell you that? > >Will I am sure tablbase of KR vs KBP can tell it I expect good programs to see it only by evaluation KR vs KBP is usually a draw. Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.