Author: Drexel,Michael
Date: 06:24:16 09/21/03
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On September 21, 2003 at 09:05:07, Eran wrote: >Here is an example of a fortress wall which must surely strike us as fantastic. >The position below was studied by W. E. Rudolph in 1912. > >It is true that if a player who has material disadvantage cannot win a game, he >or she tries to get a draw at all cost. I hope an improved knowledge-based >Shredder7 or Hiarcs9 can understand that if it which has material disadvantage >cannot win a game, it tries very hard *strategically* to close gradually the >position so that Black will become unable to win and the game draws. > >Can Shredder7 or Hiarcs9 solve successfully the position below? I am interested >to know. No, both should not solve this even after several hours search. Shredder7.04 however solves this in ~15 seconds on a modern single processor machine. > >The best move is 1.Ba4+! (White to move) > >The continued line as follows: 1.Ba4+! Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ >Kxd8 6.f5 and draws. > >[D]3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PP1K4/3B4 w - - 0 1
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