Author: Dann Corbit
Date: 16:33:38 02/09/06
Go up one level in this thread
On February 09, 2006 at 19:03:23, Terry McCracken wrote: >On February 09, 2006 at 17:27:35, Uri Blass wrote: > >>On February 09, 2006 at 13:00:39, Andreas St. wrote: >> >>>Hi, >>>yesterday i posted this position: >>> >>>2r5/2pR1pk1/p1P3p1/P2K4/5P1p/5P1P/8/8 w - - 0 1 >>> >>>and some users said, Rybka finds the solution. >>> >>>>Not Rybka 13b, but Rybka 1.0 Beta 32-bit (the first version!!!) >>>>Best regards, >>>>Orlando >>> >>>>Rybka 1.0 Beta 32-bit, sees Rxc7 quickly. I've no idea how the person testing >>>>whatever version had this failure. >>> >>>>Terry >>> >>> >>>What do you mean??? No Rybka version finds the only winning move Rxc7! >> >> >>Are you sure that it is the only winning move. >>Do you have a proof that f5 does not win? > >1. f5?! wins but isn't as good as the simple Rxc7! Perhaps there is a refutation from Rxc7. There may be some reason that the strong engines switch away from it.
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