This is cool. Rated 5 out of 5 stars
Does what it says. Nonintrusive, simple, and real.
After playing a few times, I noticed the computer does not know how to counter the ol' put an X in the corner method of winning, and after the first game, which was a draw, I've won every match--even on its turn.
I recognize that having a computer that can't lose would be frustrating, but I'd like, maybe, to have an options component to this add-on, which allows changes in difficulty (maybe an "Impossible" mode where the computer knows every trick in the book).
Otherwise, great add-on that I will be using.