Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: One more Albillo position

Author: Tony Werten

Date: 23:28:35 07/08/03

Go up one level in this thread


On July 08, 2003 at 12:38:39, Dieter Buerssner wrote:

>On July 08, 2003 at 02:45:12, Jouni Uski wrote:
>
>>8/3R1P2/1ppP1p2/3r4/8/K7/p4k2/8 w - - bm Kb2
>
>Yace seems to be rather fast here. After a bit over 1 min, it switches to Kb2 on
>my P4 2.53 GHz:

In this position it is not about finding Kb2, it's about failing low on Kxa2.
Yace seems to be seeing this quite fast.

There does seem to be something strange though. The line Yace is giving with a
score of 1.4 is a perpetual check, with even a repetition in the main line.

Tony

>
>  21419083  22.510   7.78 14t  1.Kxa2 Ra5+ 2.Kb3 Rb5+ 3.Kc4 Rc5+ 4.Kd4 f5
>                               5.Ra7 Rd5+ 6.Kc3H Rxd6H 7.f8=QH Rd5H 8.Ra6H c5H
>                               9.Rxb6H c4H 10.Kxc4H Ra5H {921}
>  23066549  24.278   7.78 14.  1.Kxa2 Ra5+ 2.Kb3 Rb5+ 3.Kc4 Rc5+ 4.Kd4 f5
>                               5.Ra7 Rd5+ 6.Kc3 Rxd6 7.f8=Q Rd5 8.Ra6 c5
>                               9.Rxb6 c4 10.Kxc4 Ra5 {921}
>  42973489  45.268   7.38 15-- 1.Kxa2 f5 2.Ra7 Re5 3.f8=N
>  44531146  46.880   6.38 15-- 1.Kxa2 f5 2.Ra7 Re5 3.f8=N
>  48135133  50.548   1.40 15t  1.Kxa2 f5 2.f8=R Ra5+ 3.Kb1 Rb5+H 4.Kc2H Rc5+H
>                               5.Kd3H Rd5+H 6.Kc3H Rc5+H 7.Kb4H Rb5+H 8.Ka3H
>                               Ra5+H 9.Kb2H Rb5+H 10.Kc1H Rc5+H 11.Kd2H Rd5+H
>                               12.Kc3H Rc5+H 13.Kb4H Rb5+H 14.Ka3H Ra5+H
>                               15.Kb2H Rb5+H 16.Kc1H Rc5+H 17.Kd2H Rd5+H
>                               18.Kc3HR {340}
>  63521054  1:08.3   1.41 15t+ 1.Kb2 a1=Q+ 2.Kxa1 Ra5+ 3.Kb2 Ra8
>  98936573  1:50.0   7.79 15t  1.Kb2 Ra5 2.Ka1 Ra8 3.Re7 Rf8 4.d7H c5H 5.Re8H
>                               Rxf7H 6.d8=QH b5H 7.Qd2+H Kf3H 8.Qc3+H Kf2H
>                               9.Qxc5+H Kg2H 10.Kxa2H Kh2H {841}
>  99144360  1:50.2   7.79 15.  1.Kb2 Ra5 2.Ka1 Ra8 3.Re7 Rf8 4.d7 c5 5.Re8
>                               Rxf7 6.d8=Q b5 7.Qd2+ Kf3 8.Qc3+ Kf2 9.Qxc5+
>                               Kg2 10.Kxa2 Kh2 {841}
>
>Regards,
>Dieter



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.