Re: [computer-go] Minimax with random evaluations

[Don Dailey <drd@xxxxxxx>]

I forgot to mention that I'm running on 5x5 boards.   Everything else is
under the same basic conditions I posted earlier.  

And I might as well give the updated numbers:


 LMC(5) = Legal Move Count at 5 ply
 RE(5)  = Random Evaluation at 5 ply
 RM     = Play a random legal move.
 
   LMC(5)  vs  RM     97.5%  (120 games)
   LMC(5)  vs  RE(5)  90.5%  (126 games)

So as we both thought, legal-move-count is better than random
evaluation which is better than random move.

Hmmm, I never thought of mobility as being a GO evaluation feature!

- Don





> > Ok, I will put on a legal-move-count evaluation test to see what
> > happens.
> 
> And I'm running it now.  I implemented it the slow naive way, generating
> a set of legal moves twice, once for each side.
> 
> I'm pretty sure this is equivalent to simply counting single point eyes.
> 
> I don't have enough games to give the full picture but after a few
> minutes the legal move count version is easily dominating both the
> random evaluation and the random mover.
> 
> 
> LMC(5) = Legal Move Count at 5 ply
> RE(5)  = Random Evaluation at 5 ply
> RM     = Play a random legal move.
> 
>   LMC(5)  vs  RM     97.4%  (38 games)
>   LMC(5)  vs  RE(5)  87.1%  (31 games)

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