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Subject: Re: Hiarcs 7.32 unable to see mate in its evaluation

Author: Laurence Chen

Date: 02:50:57 07/19/99

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On July 19, 1999 at 03:33:29, Harald Faber wrote:

>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.
>
>Here Hiarcs7.32 NEVER considers 1...Rxc4??
>From D=2/14 up to 9/27 within 6 min ALWAYS 1...f6 shown.
>Ah! Now I see: my observation is in analysis mode while yours is in playmode!
>In play mode Hiarcs indeed shows the surprising move 1...Rxc4 and changes after
>52sec (P2-350) to fxe6 but with -10.34 and then to h7-h5 -10.14.
>This reminds me on antother position with similar strange differences between
>analysis and play mode. Astonishing tha such a behaviour doesn't harm Hiarcs'
>play more.
>
>I would really like to hear Bobs and especially Marks explanations to that.
>
>>1nr3k1/1q1nbppp/p3p3/8/2RNP1N1/1P2QPP1/1B4KP/8 w - - 0 1
>>
>>Laurence
Thanks Harald for understanding my posting. I'm not saying that 1. Nxe6 is
better than 1. Nf5, CT-Art 3.0 gives 1. Nxe6 as the best move. However, it's
Hiarcs strange behaviour which puzzles me.
Laurence




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