Author: Vincent Diepeveen
Date: 13:35:46 11/05/01
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On November 05, 2001 at 12:18:39, Gerd Isenberg wrote: >On November 05, 2001 at 12:06:34, Gerd Isenberg wrote: > >>Hmm... are the pawns on a5,b6 important for the combination? Isi also needs 4 >>secs finding Kg5 with the removed pawns - but with the pawns or at least one Isi >>has no idea until i stopped the search after 5 minutes or so! Any kind of >>material-threshold in my engine? May be i need more time to understand that. > >ah i see - zugzwang! yes position is about zugzwang. the easiest way to push the zugzwang over the horizon to a mate in i think 18 or so is to put some illegal pawns ont he board. the combination as we'll get it in games is real easy! with the illegal pawns there then black can delay zugzwang with b5 a4 c4 to then see a mate in 9 against itself.
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