On Thu, Aug 04, 2011 at 12:46:21AM -0700, David Fotland wrote:
> You mention that in the playouts you check ataris and extensions to avoid
> growing a losing ladder. Do you do a full ladder search, or just some local
> heuristics? Many Faces does not have any ladder search in the playouts.
We do a "full" ladder search in the sense that we walk the board up to a
ladderbreaker. However, we do not actually play the moves and the ladder
breaker test is very simple.
Overall, this check takes little time, but it also is not very important
strength-wise. Pachi still tends to misplay many ladders and we have not
found a complete solution for that. (I'm very reluctant to completely
prune moves on principle.)
--
Petr "Pasky" Baudis
UNIX is user friendly, it's just picky about who its friends are.
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