Author: Martin Giepmans
Date: 11:40:34 08/16/04
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On August 16, 2004 at 13:05:35, Vasik Rajlich wrote: >On August 16, 2004 at 08:46:12, Vincent Lejeune wrote: > >>I found this position here http://www.fierz.ch/pontresina.htm , after I searched >>10 min with no board and then 10 with a board and then 20 with chessengine, I >>gave up ... is this position buggy ?? >> >>pasting : >> >> A cool (and very instructive) position which occurred in round 5: black to move >>and win! This one is harder than you think :-) >>Click here for a hint! >>The obvious 1... c4+ only draws. To win, you need to know something about >>'corresponding squares'. >> >>[d]8/8/4p2p/1kp1P1p1/1p4P1/1P1K2P1/7P/8 b - - 0 1 > >That is a cool anti-computer problem! White's possibilities with the h-pawn will >keep any engine from getting it. > >Try putting the white h2 pawn on h5 and with a reasonable hash table any engine >should handle it. I guess that you mean h4 instead of h5? With the white h2 pawn on h5 the obvious move (c4) is a clear win. A least that's what my engine thinks. Score jumps to approx. + 20 within a few seconds, so unless I have a huge bug ... :) Martin > >As for the correspondences, start with > >b5 & d3 (else .. c4) >c6 & e4 (else .. kd5) > >and it's easy from there ... > >Vas
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