Suggestions

Discard should "catch" easier.
Score not always correct: doesnt always see cards in one hand that can be played on hand that went down (not gin). I have seen many instances of this - is erratic. Few times organized hand less than optimally, or discarded less than optimal card when pushed knock; seems to prefer runs to sets.
Overall, amazingly good opponent.

Loveplayingcards about Gin Rummy Stars - Free