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Subject: Re: Small Bug in Chest UCI

Author: F. Huber

Date: 07:15:34 05/24/04

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On May 24, 2004 at 09:53:58, Heiner Marxen wrote:

>On May 23, 2004 at 18:24:40, Drexel,Michael wrote:
>
>>[D] 2rq1k1r/2pb1p2/3p2p1/3Pp3/4P3/2N1QpP1/PPP2P2/R4RK1 b - - 0 19
>>
>>New game,
>>2rq1k1r/2pb1p2/3p2p1/3Pp3/4P3/2N1QpP1/PPP2P2/R4RK1 b - - 0 1
>>
>>Analysis by ChestUCI Ver.3.5:
>>
>>19...Qf6
>>  -+  (-#6)   Depth: 6   00:00:11  2404kN
>>19...Qf6 20.Qh6+ Rxh6 21.Rab1 Qh8 22.a3 Rh1#
>>  -+  (-#6)   Depth: 6/6   00:00:11  4103kN
>>
>>The mainline is a mate in 4.
>
>Yes, that is incorrect, 20.Qh6+ is inferior.  Neither Chest 3.19 nor my
>current development version exhibit this bug:
>
>2rq1k1r/2pb1p2/3p2p1/3Pp3/4P3/2N1QpP1/PPP2P2/R4RK1 b - - acn 4103219; acs 17; bm
> Qf6; ce 32756; dm 6; pv Qf6 Na4 Bh3 Qh6+ Rxh6 Nb6 cxb6 g4 Bg2 g5 Rh1#;
>
>Franz?  Any idea what's going on?
>
>>Michael
>
>Thanks for pointing out!
>
>Cheers
>Heiner

Hello Heiner!

I´ve already ´analyzed´ the whole day long ... :-(

Detailed email already on the way to you ... ;-)

Best regards,
Franz.



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