Author: Harald Faber
Date: 23:14:42 04/30/00
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On May 01, 2000 at 01:54:30, Ernst Walet wrote: >On April 30, 2000 at 10:46:55, Harald Faber wrote: > >>This position is a nice test of endgame knowledge for programs: >> >>Which program(s) avoid 1.Bxh7?? g5+!! 2.hxg6+ Kg7 3.Rg8+ Kh6 and draw, white has >>no chance to enter the black fortress. >> >>[D]7R/5kpp/8/7P/4BK2/8/8/3r4 w - - am Be4h7;bm Kf4e5 Kf4g3;id >>Sax-Kovacevic,Sarajewo 1982; > >This is what Fritz6a analyses overnight after making the moves above. > >[D]6R1/7B/6Pk/8/5K2/8/8/3r4 w - - 0 1 > >Still it sees a win for white. Can you line out how the draw is achieved? > >Ernst. Depends on white's play. Try it out yourself to win with white and you'll see. The white bishop is the problem. > >Analysis by Fritz 6: > >4.Rb8 Kg7 5.Rb7+ Kh8 6.Rb6 Rg1 7.Rb5 Rd1 8.Rc5 Rh1 > +- (4.66) Depth: 23/47 02:12:39 3431667kN, tb=2701619 >4.Rb8 Kg7 5.Rb7+ Kh8 6.Rb6 Rg1 7.Rb5 Rd1 8.Rc5 Rh1 > +- (4.66) Depth: 24/45 03:07:35 4869021kN, tb=3635486 >4.Rb8 Kg7 5.Rb7+ Kh8 6.Rb6 Rg1 7.Rb5 Rd1 8.Rc5 Rh1 > +- (4.66) Depth: 25/46 05:32:03 8647286kN, tb=6198360
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