Author: Uri Blass
Date: 13:55:44 02/06/01
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On February 06, 2001 at 12:02:30, Heiner Marxen wrote: >On February 06, 2001 at 10:17:01, Paul wrote: > >>On February 06, 2001 at 08:59:10, Heiner Marxen wrote: >> >>>I have not yet tried with side to move switched ;-) >> >>I have :) ... I also get a mate in 7, is much more difficult tho :) >> >>Bxe4 B5xe4 Rb1+ Bxb1 Rd8 Bxc7+ Bxc7 Bxa7+ Kxa7 Ra5+ Ba6 Rgxa6+ Kb8 Bxc7# > >I like Rb6# more :-) > >Well, didn't that mate the wrong side? > >With side to move switched to white Chest does not find a mate in 11, >in only 80 seconds (K6-3/400 30MB hash). Therefore I suspect, this time >switching side to move is not much fun ;-) >(except in the way you handle it :-) chess playing programs may be faster than chest in this case. They can prove that there is no mate. Evaluation of mate against white at the end of the iteration is a proof that white has no mate. Proving that white has no mate in 11 is not a proof that white has no mate. Uri
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