Author: Jürgen Hartmann
Date: 05:42:13 12/06/98
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On December 06, 1998 at 00:47:20, blass uri wrote: > >On December 05, 1998 at 07:56:13, Jürgen Hartmann wrote: > >> >>On December 04, 1998 at 06:05:10, blass uri wrote: >>> >>>On December 04, 1998 at 05:29:33, Jürgen Hartmann wrote: >>> >>>>The thing I enjoy to do with a chess program is interactive analysis. Trying >>>>different lines with a program gives you the illusion to do something >>>>intelligent and achieves superior results to just letting it run endlessly on >>>>one position on its own. >>>> >>>>In the famous game Maroczy vs. Tartakower from 1922, Black build up a typical >>>>Stonewall kings attack and crowned it with an intuitive rook sacrifice. For a >>>>human it is easy to see the immense practical chances of this sacrifice and it >>>>would be the first candidate move to calculate. But Junior5 and the Crafty >>>>engine don't find it overnight on my P300. >>>> >>>>The position after 17.Nd2 was >>>> >>>>r1b3k1/pp1n3p/2pbpq1r/3p4/2PPp1p1/PP2P1P1/1BQN1P1P/3RRBK1 b - - 0 17 >>>> >>>>17... Rxh2!! >>>> >>>>Does any program see this? >>>> >>>>The question is: Do we have a fantastically tough testing position in the league >>>>of Nolot here or is it simply incorrect? >>> >>>I think that it is simply incorrect >>>for example white can defend by 21.Qc3(Junior5's move) >>> >>>Uri >> >>21.Qc3 (protecting e3 to free the rook) Nh5 22.Rg2 Qh4+ 23.Kg1 Ng3 24.Rh2 Qg5 >>(not Qxh2+ 25.Kxh2 Ne2+ =) 25.Rf2 Nf5 26.Re2 Nh4 27.Bg2 Nf3+ and Black wins. > >Instead of 26.Re2? >Junior5 suggests after a long time 26.Nxe4 dxe4 27.d5 e5 28.dxc6 g3 29.Rxf5 Qxf5 >30.Qe1 Qg6 and Junior5 evaluates the position as a small advantage for white. > >Uri >> >>Jürgen
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