Author: Steve Schooler
Date: 18:39:33 10/13/99
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On October 13, 1999 at 19:49:58, Jeremiah Penery wrote: >On October 13, 1999 at 17:23:14, Howard Exner wrote: > >>Here's an example of pawn majority knowledge. A program >>with pawn majority knowledge of the queen side configuration in this >>example may well find the winning move Qg6+. >> >>4Q3/6pk/2pq4/3p4/1p1P3p/1P1K1P2/1PP3P1/8 b - - bm Qg6; >> >>After the exchange of queens will follow the the advance of the black king to >>the kingside, then exchanges of the kingside pawns, and finally the king can >>march over to pick up the queenside pawns. Is knowledge that white cannot break >>through on the queenside essential for solving this? Would any program find Qg6? > >I think Qg6 only draws. > >Here's a line: 1. ...Qg6 2. Qxg6 Kxg6 3. Ke3 Kf5 4. c3 g5 5. Ke2 Kf4 6. Kf2 g4 >7. fxg4 Kxg4, and this will draw. > >Can black improve on this? > >Jeremiah I suspect that black may win by zugzwang : in above line 4... Kg5 5. Ke2 Kf4 6. Kf2 g6 7. cxb4 g5 8. Kg1 Kg3 9. Kh1 h3 10. gxh3 Kxh3 and (I think) black wins.
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