[computer-go] average length of 9x9 MC playout

[Don Dailey]

John,

Did that 107.3 number come from me?  I seem to remember
that I used to get that - if I'm remembering correctly.

But I remember making a little change, that addressed
what appeared to be a minor implementation bug.   One
of the speed enhancements is to "put away" moves you
already tried which occupy points on the board.  When
a capture is made I would bring these back into play.

But the bug was that I was putting away the  moves that
filled the 1 point eyes, even though they might be legal
on the next move or later.   However they would all come
back to life when a capture was made.   I don't think
this bug had a huge affect on the quality of the play.

But apparently, it did add about 3 moves to the length
of the play-outs.  

So I think the more correct number is what I just 
reported on the previous email,  very close to
about 104.63.

I am now curious about what others are getting.

- Don



On Sun, 2007-03-18 at 22:33 -0400, John Tromp wrote:
> I've seen the number 107.3... reported earlier
> for the average length, without the 2 final passes.
> Is this allowing multi stone suicides or not?
> And what's the outcome in the other case?
> Thanks!
> 
> 
> regards,
> -John
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