Author: Uri Blass
Date: 19:15:31 07/28/04
Go up one level in this thread
On July 28, 2004 at 20:49:22, John Merlino wrote: >On July 28, 2004 at 20:17:31, Uri Blass wrote: > >>On July 28, 2004 at 19:38:16, John Merlino wrote: >> >>>On July 28, 2004 at 18:44:03, Ignacio Santos Crespo wrote: >>> >>>>2. Bb6! >>>> >>>>1. Rb5+ Nb6 2. Bxb6 >>> >>>2...Rh2 3.Kg3 Rxh1. >>> >>>Now what? >>> >>>jm >> >> >>I know this study >> >>2...Rh2 3.Kg4! Rxh1 4.Bg1+ with the idea 5.Rb1 and the black rook has no moves >>and the black king cannot move forever to white squares so white wins. >> >>Uri > >So, indeed, the hard part (for chess engines) is not finding 1.Rb5+, but rather >finding 2.Bxb6, 3.Kg4 and 4.Bg1+. > >CM_SKR does not find any of those moves in a reasonable amount of time (on my >AMD 2500). > >jm Finding 2.Bxb6 is not the hard part for movei 2.Bxb6 is always in the pv. The problem for it seems to be to find Kg4 depth=16 +2.86 f5b5 c8b6 d8b6 d2h2 h4g3 h2h1 g3g2 h1d1 b5f5 b8b7 f5f6 d1d3 b6c5 h6h5 f6e6 b7c7 c5e3 Nodes: 2060864346 NPS: 708826 Time: 00:48:27.43 Uri
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