Computer Chess Club Archives


Search

Terms

Messages

Subject: Symbolic: Running BWTC

Author: Steven Edwards

Date: 03:45:44 07/06/05


Symbolic: Running BWTC

After three minor bugfixes, Symbolic was tested against the entire 1,001
position suite BWTC.  There were no crashes or hangs, just correct key moves for
822 of the 1,001 problems.

Observations:

1. About 450 of the problems are MateIn1 or MateIn2; these are solved
immediately with two and four node searches.  Symbolic uses the ChessLisp
intrinsics for MateIn1 and MateIn2 recognizers, so these problems did not
activate the full cognitive search.

2. Of the remaining solved problems, not all solutions have an exact analysis
because Symbolic's defensive move suggestors are rather limited at this point in
development.

3. Most unsolved problems can very likely be easily solved mith minor
adjustments to the progressive deepening.

4. Deactivating narration generation gives a twofold speed increase.

5. Rarely did an analysis take more than ten seconds; most were less than five
seconds.  Node counts per search ranged from two up to about two hundred.



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.