On Sat, Mar 17, 2007 at 02:12:21PM -0700, Christoph Birk wrote:
>
> On Sat, 17 Mar 2007, Chris Fant wrote:
> >What does that have to do with it? My engine does not play
> >multi-stone suicides, it only allows them in the playouts. As a
> >result, it plays stronger. This is desirable, no?
>
> I doubt that it plays stronger against a reasonable opponent.
> How could that be?
One plausible explanation is that the playouts are played against a
stupid random opponent. One that does not even try to capture stones,
etc. So allowing also the own random moves to work towards getting the
capturable stones captured, makes them look more weak, and thus gives a
bit better overall idea of the situation.
The pure random playouts have other strange features too, like often
playing self-atari, because it might just be that the player got a
second move in the neighbourhood before the opponent happens to capture
the stone. That's why UCT or some other search is needed.
In spite of it weaknesses, it ia amazing how well MC ends up playing!
- Heikki
--
Heikki Levanto "In Murphy We Turst" heikki (at) lsd (dot) dk
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