Author: blass uri
Date: 12:53:49 12/24/99
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On December 23, 1999 at 19:24:48, Vincent Diepeveen wrote: <snipped> >Bob i've got proof of bad working of singular extensions. I think it is possible that they had a rule of not extending wasting tempo moves so deep thought could not see when that 18.Rg1 is losing when it played 16.c4 because black waste tempo in the line Qh4-h3 Rg1 Qxh2+. It is also possible that they did not extend this line because they did not extend lines that give the queen for a pawn. You need to see 14 plies from the move 16.c4 without extensions to find 22...Qxh5# I do not think that the reason of not seeing this tactics was singular extensions because I believe that with singular extensions and some check extensions it is possible to see that 16.c4 is bad. Uri
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