Author: Mark Young
Date: 11:25:28 10/22/98
Go up one level in this thread
On October 22, 1998 at 13:03:26, Bruce Moreland wrote: > a b c d e f g h > +---+---+---+---+---+---+---+---+ >8 | |///| |///| |///| |///| 8 > +---+---+---+---+---+---+---+---+ >7 |///| |///| |///| B |/p/| | 7 > +---+---+---+---+---+---+---+---+ >6 | |///| |///| P |///| |///| 6 > +---+---+---+---+---+---+---+---+ >5 |///| |///| |///| |/p/| P | 5 > +---+---+---+---+---+---+---+---+ >4 | |/b/| |/k/| |/P/| |///| 4 > +---+---+---+---+---+---+---+---+ >3 |///| |///| |///| K |///| | 3 > +---+---+---+---+---+---+---+---+ >2 | |///| |///| |///| |///| 2 > +---+---+---+---+---+---+---+---+ >1 |///| |///| |///| |///| | 1 > +---+---+---+---+---+---+---+---+ > a b c d e f g h > >8/5Bp1/4P3/6pP/1b1k1P2/5K2/8/8 w - - 0 1 > >The key is Kg4 > >Programs want to play fxg5, because this wins a pawn, prepares to get a passer, >etc. > >I haven't seen detailed analysis, but I assume that this draws, because black >gets back to h8 somehow, and then he can sacrifice his bishop for the e6 pawn >eventually, and white is left with the wrong rook pawn. > >Does anybody figure this position out? If so, how did you do it? Does it >require speculative knowledge that might lead to a sub-optimal result in other >cases? > >bruce Rebel 8, Rebel 9, and Rebel 10 are the only programs I know of that can find the key move in this position. Rebel 9, and Rebel 10 being the only ones that can find Kg4 in well under 10 min. and stick with. Here is what Rebel 10 thinks of the position. Kg4 found at ply 16 score 2.77 Kg4 Be7 Kf5 g4 Kxg4 Ke4 Be8 At ply 17, score now 3.20 same line of play.
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