Author: Paulo Soares
Date: 00:35:22 07/19/99
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On July 18, 1999 at 16:21:27, Laurence Chen wrote: >As I was practicing my chess tactics with CT-ART 3.0, position #540 caught my >attention. Below is the FEN of the position. My chess engines were unable to >find the best move 1. Nxe6!, and what was even more incredible was the fact >after playing the move 1. Nxe6!, Hiarcs 7.32 insists in playing the blunder move >1. ... Rxc4 ??? which allows White to mate in 6 with 2. Nh6+!. Fritz 5.32 and >Junior 5 have no problem to see that 1. ... Rxc4 ??? is a terrible blunder which >leads to mate. Even Chessmaster 6000 was unable to find the best move 1. Nxe6!, >yes, I noticed that CM 6000 selects the move as one of the choices after 15 >secs, however, it changes its evaluation and selects 1. Nf5 again when allowed >to think a little longer, after 45 secs. So that does not count as being able to >find the solution because the engine changed its mind. Getting back to Hiarcs >7.32, after making the blunder move 1. ... Rxc4???, Hiarcs 7.32 is then able to >see the mate in 6 after 2 minutes of evaluation. It makes me wonder why Hiarcs >7.32 is not able to see mate in its evaluation. My computer was a Pentium 233, >128MB of hashtable was used for all engines, with exception of CM6000, 16 MB of >hashtable. And don't say that CM6000 needs more RAM, because that's a very lame >excuse. > >1nr3k1/1q1nbppp/p3p3/8/2RNP1N1/1P2QPP1/1B4KP/8 w - - 0 1 > > >Laurence Laurence, I analysed this position, with the aid of H7.32 for 1 hour, and I believe that 1. Nf5! is better than 1. Nxe6, because I obtain a strong attack in king's side. CT-ART 3.0 does the continuation for 1.Nxe6 ? Paulo Soares, from Brazil
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