Author: Dieter Buerssner
Date: 19:34:41 03/07/01
Go up one level in this thread
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
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