RE: computer-go: vectors

["Anders Kierulf" <anders@xxxxxxxxxxx>]

> The influence of a move is not only given by a influence on the
> surrounding places (speed), but also by a direction on the
> influence !!! (Vectors=speed & direction)
> ...
> Kjeld Petersen

SmartGo uses directional influence. Rather than spreading a circle of
influence like most programs do, SmartGo computes influence separately for
each direction and color, so that a wall projects influence farther in the
direction perpendicular to the wall. This appears to work quite well.

However, influence is only one component in evaluating the board position,
and deciding which move to play is done using global search.

Anders Kierulf
www.smartgo.com