Author: James Robertson
Date: 20:26:27 10/06/98
Go up one level in this thread
On October 06, 1998 at 16:38:15, Dan Homan wrote: >On October 06, 1998 at 07:57:51, Jari Huikari wrote: > >>On October 05, 1998 at 12:05:39, Jari Huikari wrote: >> >>>On October 04, 1998 at 05:27:00, Alessio Iacovoni wrote: >> >>>>Why don't chess programs automatically implement a random chess feature changing >>>>(by some say .05) the evaluation algorithms? >> >>(I think some other programs are also having this. Are they?) >> >>I created a new command 'VARY' to Nero 4. It can be switched off and on. >>When ON, Nero makes by change one of the best moves. Possible moves to >>be made are those which have at least the value Bestscore-0.2*pawns... >>When OFF, the best move (according to Nero!) is always made. >> >>I don't know how "make 2nd best" is done in other programs, or "random" e.g. >>in Genius 2, where I have seen that option. Perhaps someone could tell me. >> >>Download address of my program is http://www.math.jyu.fi/~huikari/NERO4.ZIP >> >> Jari > >To find the second best move... first find the first best move, eliminate >it from the list of possibilities then search again to find the next best >move. > >I don't know how Genius does a 'random' feature... but one idea is to have >your program add some small random number to your evaluation of each position >at the leaves of the search tree. > > - Dan That seems slow...... I'll bet there are faster ways. Maybe you could add small random numbers at non-terminal nodes? I.e. in a 6 ply search add random numbers when comparing scores at ply 5 or even ply 4. James
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.