Author: José de Jesús García Ruvalcaba
Date: 11:39:35 08/22/03
Go up one level in this thread
On August 22, 2003 at 09:55:42, Mike Byrne wrote: >On August 22, 2003 at 09:42:38, Alastair Scott wrote: > >>[D]8/p2k2p1/1p6/5P1p/P5P1/5K1P/8/8 w - - 0 48 >> >>How long does your engine take to see that gxh5 loses? >> >>(A surprisingly long time in some cases - for example, 12 seconds for Ruffian >>1.0.1, Athlon XP 2600+, 512MB RAM, 32MB hash). >> >>Alastair > >show me the win after gh5 , I can't find it ....and neither can crafty or >shredder It is very easy, black puts his king of f6, then creates a passed pawn with a6 and b5, and the captures all white pawns on the kingside. The only thing white can try is to left black with an h-pawn, but that still loses. A posible variation 1. gxh5? Ke7 2. h4 Kf6 3. Ke4 a6 4. h6 gxh6 5. h5 b5 6. axb5 axb5 7. Kd5 Kxf5 8. Kc5 Kg5 9. Kxb5 Kg4 10. Kc4 Ke3 and black wins White can also try leaving the pawn in h3 or h4, or moving the king first to f4 instead of e4, but after 1. gxh5? black wins. José.
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