Computer Chess Club Archives


Search

Terms

Messages

Subject: Hashing double bounds

Author: rasjid chan

Date: 12:18:05 06/20/05



I have implemented hashing 2 bounds after reading fruit does this.
It is fairly complicated to do and I just want to see if it is done wrongly.

I measured the figure
  hash-hit-return-by-2nd-bound/total-hash-hit

Per game move it is 0.000 almost all the time.
Ocasionally it has 0.001 and almost rarely 0.002.

If others have much higher figure then this,I suspect my double-bound is done
badly. It is difficult to debug except through usual hit statistic.

Vasic,
If this 2nd bound statistic is correct, then fail-soft propagation
of exactness is far better. For full-search FL exactness,it starts from 2/3%
and drops to about 1% for whole game.

Best Regards
Rasjid



















This page took 0.09 seconds to execute

Last modified: Thu, 07 Jul 11 08:48:38 -0700

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