Author: Heiner Marxen
Date: 11:14:57 03/26/01
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On March 23, 2001 at 01:54:29, Heinz-Josef Schumacher wrote: >The follow study is not soluble for progrms today!? > >5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - > >http://homepages.compuserve.de/hjsxy/2.gif > >M.Judowitsch- Study 1976 > >1.c8N!! [1.Kg2? Rh8 2.Kxh1 Kg8+ 3.Kg2 Rh4=). 1...Rh8 2.Ne7 Nf2 3.Kxf2 Rg8 4.Ke3 >Kh8 5.Kd4 Kh7 6.Kc5 Kh8 7.Kb6 Kh7 8.Kc7 Rh8 9.Kd8 Rg8 10.Ke8 Rh8 11.Kf7 Rg8 >12.Nxg8 Kh8 13.Kxf8 1-0 My program Chest confirms, that after 8...Rh8 there is a mate in 12: 9.Kd8 Rg8 10.Ke8 Kh8 11.Kf7 Kh7 12.Nxg8 Kh8 13.Ne7 Kh7 14.Kxf8 Kh8 15.Ke8 Kh7 16.Kxd7 Kh8 17.Kc7 Kh7 18.d7 Kh8 19.d8=Q+ Kh7 20.Qg8# When I went back one more move of the intended solution, Chest refutes 8.Kc7 with Kh8 instead of Rh8, with the following line: 8.Kc7 Kh8 9.Kd8? Nh7+!, avoiding the mate with Nxg6. Neither I nor Chest have found a solution here, so it may be a refutation of the study, but I doubt it. Does anyone know better? Heiner
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