endgame (Was [computer-go] Re: Should 9x9 komi be 8.0 ?])

[Jonas Kahn]

> But correct ko threats playing has nothing to do with the playout part : Since it is a strategic concept that involves global understanting, It is handled by the UCT tree part.

Yes and no.
Theoretically, that's the work of the UCT part. But, as Steve pointed
out, kos can go on for long. I don't know what depth is attained in the
tree (by the way, I would really like to know), but I doubt it is that
long. Moreover, some kos must be kept for later.

Hence, some basic understanding of kos in the playouts might be useful.

That's merely a variation of the horizon effect. We could even imagine a
situation where the UCT makes a threat that loses points in the only aim
of having the ko past the horizon, where it would be 50-50 (for example)
in the playout.

Jonas