Author: Jeremiah Penery
Date: 11:02:36 11/16/00
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On November 16, 2000 at 10:20:57, Ricardo Gibert wrote: >On November 16, 2000 at 07:15:54, Jeremiah Penery wrote: > >>On November 16, 2000 at 05:38:30, allan johnson wrote: >> >>>>>Could people let me know how their programmes handle this end game >>>>>position? >>> [D]1R6/2pk4/1P6/8/3r4/K7/P7/8 w - - >> >>>>> The key move is 1Rd8+ KxR 2b7 Rb4 3KxR Pc5+ 4Kb5 wins.I'm keen to see >>>>>whether Rebel, CM8000 et.al.can solve this difficult end game.I doubt >>>>>that they can given the number of moves they would have top see in advance. >> >>It seems to me that black may be able to draw by setting up sort of a fortress >>with 1. Rd8+ Kxd8 2. b7 Kd7! 3. b8=Q Rd6. If anything, it takes a very long >>time for white to accomplish anything, and the only way to progress is to >>advance the a-pawn, which is hard for him to do. > >A few sample lines shows Black is unable to put up significant resistance: > >1.Rd8+ Kxd8 2.b7 Kd7 3.b8Q Rd6 4.Qa8 Rb6 5.Ka4 Kd6 6.Ka5 Kd7 7.a3 Kd6 > >[7...Rd6 8.Kb5 Rb6+ 9.Kc5] > >8.Qe8 Kc5 > >[8...Rb3 9.Qg6+ Kc5 10.Qf5+ wins; 8...Rb7 9.Ka6 (or 9.Qd8+) Rb6+ 10.Ka7 Kc5 >11.a4 Kd6 12.a5 Rc6 13.Kb7 Rc5 14.Qf8+ wins] > >9.Qd7 Rc6 10.a4 wins You're right. I didn't analyze it deeply enough to see that the white King can actually help out without forever blocking it's own pawn.
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