Author: leonid
Date: 12:30:19 03/08/01
Go up one level in this thread
On March 07, 2001 at 22:34:41, Dieter Buerssner wrote:
>On March 07, 2001 at 16:48:55, leonid wrote:
>
>>rkrR1q2/qqq1Q1Rq/nnQbN2Q/Qq2N3/3n2Q1/1Q1Q3b/2q3BB/Q6K w - -
>
>After some time, I tried again one of your test positions. Here is the result of
>Yace:
>
> 1762817 26.780 17.37 1t 1.Qcxc7+ Nxc7 2.Qdxc2 Qbxa5 3.Qxa5 Qxh6 4.Qxf8
> Bxg4 5.Qxa7+H Kxa7H 6.Bxb7H {1662}
> 1972903 29.917 17.38 1t+ 1.Qexc7+ Nxc7 2.Qxa7+ Qxa7 3.Qxa7+ Rxa7 4.Nxf8
> Qbxd3 5.Qcxc2H Bxg2+H 6.Qcxg2H {1662}
> 2651749 39.935 17.63 1t 1.Qexc7+ Nxc7 2.Qdxc2 Qbxa5 3.Qxa5 Qxh6 4.Qxa7+
> Rxa7 5.Qxb7+ Rxb7 6.Rxf8 {1662}
> 3023320 45.345 17.63 1. 1.Qexc7+ Nxc7 2.Qdxc2 Qbxa5 3.Qxa5 Qxh6 4.Qxa7+
> Rxa7 5.Qxb7+ Rxb7 6.Rxf8 {1662}
> 3341491 50.105 18.03 2++ 1.Qexc7+ Bxc7 2.Nd7+ Nxd7 3.Bxc7+ Qxc7 4.Qbxb5+
> Nxb5 5.Qdxb5+ Qcb6 6.Qaxb6+ Qxb6 7.Rxh7 {1662}
> 3363332 50.402 Mat07 2t 1.Qexc7+ Bxc7 2.Nd7+ Nxd7 3.Qaxc7+ Qxc7
> 4.Qbxb5+ Nxb5 5.Qdxb5+ Nb6 6.Qbxb6+ Qxb6
> 7.Qxb6# {350}
> 3735698 54.286 Mat07 2. 1.Qexc7+ Bxc7 2.Nd7+ Nxd7 3.Qaxc7+ Qxc7
> 4.Qbxb5+ Nxb5 5.Qdxb5+ Nb6 6.Qbxb6+ Qxb6
> 7.Qxb6# {350}
>
>Within 5 minutes, Yace did not find a shorter mate.
>
>I did not try with default pareamters at all, because I suspected an explosion
>in quiescensce search - quite normal for the positions you send and my proogram.
>If anybody wants to reproduces with Yace, in the text interface, type qe 1,
>under most GUIs, put qe 1 into yace.ini.
>
>Please post more mate problems, but perhaps you might want to consider, that
>usually people don't have 10 or more queens available to set up the position on
>a real chess board.
>
>Regards,
>Dieter
If you looked through this position by brute force, please say me what was
average nodes/second rate for this position.
Recently, I speeded my mate solver and installed in the same time NPS counter.
Was surprised by finding that NPS is very low. It is usually somewhere between
35k and 120K on my AMD 400Mhz.
Cheers,
Leonid.
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