Author: Peter Kappler
Date: 23:49:51 01/04/02
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On January 05, 2002 at 02:18:52, Scott Gasch wrote: >Hi all, > >I just watched an interesting game on ICC between my engine (monsoon) and >Steve's (Chesterx). In the game monsoon is ahead by a few pawns but ends up >losing because its king is out of position and chester is able to queen a pawn >with the help of its knight. Here's a position: > >[D]2n3k1/p4p2/2N5/P5pp/1P6/5K2/8/8 b - - 0 34 > >Monsoon loves black in this position even after a 13 ply search -- my pawn >majority code is boosting the score and it thinks between the knight and the >pawn it will be able to contain the white pawns on the queenside. I'm only a >chess amateur but it looked to me like black was in pretty good shape too. > <snip> > My question is this: how deep does >your engine need to search to realize the danger in position 1? Is there any >static eval rule that might help to understand these positions bettwe? Did >monsoon blunder the endgame? If so, where? > I only let Grok search for 2 minutes, but it was unaware of any danger. (Actually, it sees the b5, Nxa7 idea pretty quickly, but still likes Black.) Chess Tiger gives a pretty convincing drawing line: 1 ... a6 2 Nb8 g4+ 3 Kg3 Ne7 4 Nxa6 Nc6 5 Nc5 Nxb4 6 Nd3 Nc6 7 a6 -Peter
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