Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: How I Learned to Stop Hating 141

Author: Henk Bossinade

Date: 06:27:01 09/05/04

Go up one level in this thread


On September 04, 2004 at 17:54:50, Stuart Cracraft wrote:

>On September 03, 2004 at 09:47:26, Jan K. wrote:
>
>>You should look for bugs in your search....i find the move even with no
>>extensions but the threat extension set to 1/2 ply and no checks in qsearch.
>>Takes 60 seconds and almost the same number of nodes like your full search.
>
>I am not sure where else to look.
>
>With nothing other than hashing and null move, no extensions including
>no checking extensions no check-evasion extensions, etc., how many
>ply does it take your program to solve WAC 141?
>
>I *have* to have recapture extension enabled in order to solve it
>currently in anything approaching real-time.
>
>Stuart

I get ply 9 with only hashing. Maybe your move ordering isn't optimal for WAC
141.

(proc. VIA C3 700Mhz)
  4    0.05    -70        3741   Kg2f1 Nf4e2 Qc1d1 Qc7a5
  4.   0.06    -70        4250   Kg2f1 Nf4e2 Qc1d1 Qc7a5
  5    0.31    -70       15588   Kg2f1 Nf4d3 Qc1d2 Nd3e1 Qd2d1
  5.   0.34    -70       20946   Kg2f1 Nf4d3 Qc1d2 Nd3e1 Qd2d1
  6    0.84    -70       92728   Kg2f1 Nf4d3 Qc1d2 Nd3e1 Qd2d1 Qc7a5
  6.   1.09    -70      104292   Kg2f1 Nf4d3 Qc1d2 Nd3e1 Qd2d1 Qc7a5
  7    6.07    -70      533246   Kg2f1 Re8e2 Qc1b1 Re2d2
  7.   6.59    -70      658602   Kg2f1 Re8e2 Qc1b1 Re2d2
  8   17.44    -70     2165687   Kg2f1 Re8e2 Qc1b1 Re2d2 Rh1g1 Qc7a5 Bb3d1 Qa5b4
  8.  21.14    -70     2381705   Kg2f1 Re8e2 Qc1b1 Re2d2 Rh1g1 Qc7a5 Bb3d1 Qa5b4
  9   99.10    -70     6629614   Kg2f1 Re8e2 Qc1b1 Re2d2
  9  169.96     ++    12524259   Qc1xNf4 Bd6xQf4 Rh4xPh5
  9  240.97    260    22211001   Qc1xNf4 Bd6xQf4 Rh4xPh5 Pg6xRh5
  9. 240.98    260    22211008   Qc1xNf4 Bd6xQf4 Rh4xPh5 Pg6xRh5

Cuts  : Null=0 Delta=0 SEE=0 Eval=0 Rzr=0 Xfut=0 Fut=0
Ext.  : Check=0 OneReply=0 Threat=0 Recap=0 RevCheck=0 Pawn=0
Misc. : Hashprobes=12907069(10% hits) Moveorder=95% Bf=6.53 Nps=92171(53% qui)
        Eval=11501487



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.