Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: If you like to solve a mate...

Author: Uri Blass

Date: 14:00:44 03/08/01

Go up one level in this thread


On March 08, 2001 at 15:30:19, leonid wrote:

>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.

It is easy to calculate the number of nodes per second.
The following information was posted:
3735698  54.286  Mat07

It means that the number of nodes per second is  3735698/54.286.
I guess that the hardware is also similiar to your hardware(I rememeber that
Dieter use something similiar to your hardware).

Uri



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.