Author: martin fierz
Date: 07:24:07 12/11/03
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On December 11, 2003 at 09:04:42, Uri Blass wrote: >On December 11, 2003 at 08:29:15, Claude Le Page wrote: > >>I submitted to some engines a line that is known since 400 years: >>1 e4 e5 2 Nf3 Nc6 3 Bc4 Nf6 4 Ng5 d5 5 exd5 >>I was surprised to see that most of them answer 5...Nxd5 whereas it is known >>since Polerio that this move is bad after 6 Nxf7 or d4 exd4 7 O-O >>of the CB native engines , only shredder7 , junior7 ,and junior8 pass the >>test (they play Na5 , Nd4 or b5 that are the "regular" answers ),and that a >>"modern" engine as Hiarcs9 behaves like the obsolete ones >>if these engines (out of book!) behave like this , what confidence can one have >>in analyses by such engines ? >>Friendly Yours >>Claude Le Page > > >how much time did you give the engines? > >I remember that I read that it is not clear if Nxf7 is good for white and in a >correspondence game black found a good defence. i also remember that according to theory Nxf7 is not so clear. lots of fun though of course :-) IIRC then there is a better move than Nxf7, but i don't remember whether it's the line given by claude. cheers martin >I do not play this opening not as black and not as white but it is better not to >believe automatically to everything that is known in theory. > >The question is also if the engines that capture d5 are losing in a game against >the engines that do not capture. > >Uri
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