Star Point
A 19x19 goban has nine star points:
small dots on nine intersections.
In Japan, handicap stones are traditionally placed on the star points.
Star points have no effect during game, they only guide the eye.
A 13x13 board has only five star points.
A 9x9 board also has only five star points. However, some leave out that in the center, some those in the corners.
See also