Author: Goette Patrick
Date: 09:51:20 03/28/99
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On March 28, 1999 at 00:10:37, Paulo Soares wrote: >On March 27, 1999 at 10:38:07, Goette Patrick wrote: > >>Hello, >> >>Here is a position taken fom a study from Selesniev (1919), which is interesting >>to submit to computers to see how they react. If black play the best line, they >>will only get a draw, this according to my program Hiarcs 6.0. >>And yours ? Does it find something else ? >> >>White to move. >>White : Ka4,Re1,b5,c4,d5,g4,g5 >>Black : Kh8,Rh3,b6,c7,d7,e3,f7,g6,g7 > >Goette, > >This study could be called whites play and draw? >1.d6 cxd6 2.c5 dxc5 3.Rxe3 Rh2 4.Rh3+ Rxh3 stalamate. > >If this will be the main line, Crafty16.5 T, >Fritz5.32 and Genius6 does not find this >variant in aproach 7 minutes in PII-300 HT=60Mb. > >Best regards, > >Paulo Soares, from Brazil Dear Mr Soares, I thank you for your message. 2 points seem me interesting : 1. How do your computers estimate the position after 1.d6 cxd6 2.c5 bxc5 According to Hiarcs 6.0 (,P166,HT=32Mb), black are better, but the following of the game from this point reveals something else : 3.b6 Rg3 4.Rb1 Rxg4+ 5.Ka5 Re4 6.b7 Re8 7.b8=Q RxQ 8.RxR+ Kh7 9.Re8 f6 10.Rxe3 fxg5 and white must win. 2.A little subtlety -that does not change anything at the result : the draw- is this one : After 1.d6 cxd6 2.c5 dxc5 3.Rxe3 Rh4 4.Rh3 Rh7 5.Re4 and White treathens mate by Re8 so black must repeat the position. Pretty, no ? Patrick
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